Abbreviations and Definitions

ISO/TC67/SC4/WG6 N 172

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TABULATION OF ABBREVIATIONS AND DEFINITIONS IN SUBSEA STANDARDS Extracted from published ISO 13628 and API 17 series of standards Up to date as of: 2001-12-07 Compiled by: Katja Sommervold and Liv Skjellum Ingebretsen, Norsk Hydro, Norway


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DEFINITIONS Defined word

Definition

Used in

1-tube A vertical pipe attached to the platform structure through which an umbilical can be routed.

API RP 17I

Ancillary Component Component used to control the flexible pipe behaviour. EXAMPLES: Bend stiffeners and buoyancy modules.

ISO13628-2

Ancillary components Components used to control the flexible-pipe behaviour, such as bend stiffeners and buoyancy modules.

API SPEC 17J

Ancillary Components Components used to control the flexible pipe behaviour, such as buoyancy aids and fire hoods/ boxes.

API SPEC 17K

Ancillary equipment Accessory to the umbilical system which does not form part of the main functional purpose. (Weak link, buoyancy collar, I/J-tube seal, etc.).

API SPEC 17E

Ancillary Equipment Accessory to the umbilical system which does not form part of the main functional purpose. EXAMPLES: Weak-link, buoyancy collar and I-tube or J-tube seals.

ISO 13628-5

Annulus The space between the internal pressure sheath and outer sheath. Permeated gas and liquid is generally free to move and mix in the annulus.

API SPEC 17J

Annulus Space between the internal pressure sheath and outer sheath. NOTE: Permeated gas and liquid is generally free to move and mix in the annulus.

ISO13628-2

Annulus Seal Assembly A mechanism which provides pressure isolation between each casing hanger and the wellhead housing.

API SPEC 17D

Annulus Seal Aassembly Mechanism which provides pressure isolation between each casing hanger and the wellhead housing.

ISO 13628-4

Anti-wear layer Nonmetallic layer, either extruded thermoplastic sheath or tape wrapping, used to minimise wear between structural layers.

API SPEC 17J

Anti-wear Layer Non-metallic layer, either extruded thermoplastic sheath or tape wrapping, used to minimize wear between structural layers.

ISO13628-2

API monogram Registered mark of the American Petroleum Institute.

API SPEC 17E


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Defined word

Definition

Used in

API Monogram A registered mark of the American Petroleum Institute.

API SPEC 17K

Armor Two or more layers of contra-helically applied galvanised steel wires surrounding the laid-up functional components of an umbilical. The wires may be individually jacketed with a thermoplastic polymer, or alternated with plastic rods of the same diameter. The armor provides mechanical strength, protection and ballast for the umbilical bundle. For some applications, where tensile capability and torque balance are not critical, one layer only of armor may be acceptable.

API SPEC 17E

Armoring One or more layers of helically applied wires surrounding the laid-up functional components of an umbilical that provide mechanical strength, protection, and ballast to the umbilical. The wires may be galvanised or plastic coated steel or other suitable material.

API RP 17I

Arrhenius plot Used to plot service life against the inverse of temperature for some polymer materials by means of a log-linear scale.

API RP 17B

Attenuation Reduction in level of the transmission signal at the transmission frequency. Measured in decibels (dB).

API SPEC 17E

Attenuation A reduction in level of the transmission signal at a transmission frequency. Measured in decibels (dB).

API RP 17I

Basket Used for storage and transport of flexible pipe (all pipes are laid freely into the basket).

API RP 17B

Bellmouth A flared opening on the bottom of the J-tube.

API RP 17I

Bellmouth Part of a guide tube, formed in the shape of a bellmouth, and designed to prevent overbending of the flexible pipe.

API SPEC 17J

Bellmouth Part of a guide tube, formed in the shape of a bellmouth, and designed to prevent overbending of the flexible pipe.

API SPEC 17K

Bellmouth Part of a guide tube, formed in the shape of a bellmouth and designed to prevent overbending of the flexible pipe.

ISO13628-2

Bend limiter Device for limiting the bend radius of the umbilical, usually by mechanical means, typically comprising a series of interlocking metal rings designed to lock at a pre-defined radius.

API SPEC 17E

Bend limiter Any device used to restrict bending of the flexible pipe. Bend limiters includes bend restrictors, bend stiffeners, and bellmouths.

API SPEC 17J


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Defined word

Definition

Used in

Bend Limiter Any device used to restrict bending of the flexible pipe. Bend limiters include bend restrictors, bend stiffeners and bellmouths.

API SPEC 17K

Bend Limiter Device used to restrict bending of the flexible pipe. NOTE: Bend limiters include bend rectrictors. bend stiffeners and bellmouths.

ISO13628-2

Bend Limiter Device for limiting the bend radius of the umbilical by mechanical means. NOTE It typically comprises a series of interlocking metallic or moulded rings, applied over the umbilical.

ISO 13628-5

Bend Radius Radius of curvature as measured to the centreline of a conduit.

API RP 17C

Bend radius The radius of curvature of the flexible pipe measured from the pipe centreline. Storage and operating MBRs are defined in 5.3.1.

API SPEC 17J

Bend Radius The radius of curvature of the flexible pipe measured from the pipe centerline. Storage and operating Minimum Bend Radii are defined in Sections 5.3.1.6 and 5.3.1.7.

API SPEC 17K

Bend Radius Radius of curvature of the flexible pipe measured to the pipe centreline. NOTE: Storage and operating MBRs are defined in 5.3.1.6 and 5.3.1.7

ISO13628-2

Bend Radius Radius of curvature as measured to the centreline of a conduit.

ISO 13628-3

Bend Restrictor A device for limiting the bend radius of the umbilical, usually by mechanical means, and typically comprised of a series of interlocking metal or molded rings. That is also known as a bend limiter.

API RP 17I

Bend restrictor A mechanical device that functions as a mechanical stop and limits the local radius of curvature of the flexible pipe to a minimum value.

API SPEC 17J

Bend Restrictor A mechanical device that functions as a mechanical stop and limits the local radius of curvature of the flexible pipe to a minimum value.

API SPEC 17K

Bend Restrictor Mechanical device that functions as a mechanical stop and limits the local radius of curvature of the flexible pipe to minimum value.

ISO13628-2


5

Defined word

Definition

Used in

Bend Shoe A rigid former shaped as a sector of a circle. It ensures that the minimum bend radius of the umbilical is not infringed, particularly when overboarding umbilical during second end I or J-tube pull-ins. That is also known as an arch or overboarding chute.

API RP 17I

Bend stiffener Device for providing bending strain relief for the umbilical by providing localised increase in stiffness. Usually a molded device, sometimes reinforced depending on the required duty, applied over the umbilical. Sometimes referred to as a bend strain reliever.

API SPEC 17E

Bend Stiffener A device for limiting the bend radius of the umbilical by providing a local increase in bending stiffness. This is usually a molded device, sometimes reinforced depending on the required duty. This is sometimes known as a bend strain reliever.

API RP 17I

Bend stiffener Ancillary conically shaped component, which locally supports the pipe to limit bending stresses and curvature of the pipe to acceptance levels. Bend stiffeners can be either attached to an end fitting or a support structure where the flexible pipe passes through the bend stiffener.

API SPEC 17J

Bend Stiffener Ancillary conically shaped component, which locally supports the pipe to limit bending stresses and curvature of the pipe to acceptable levels. Bend stiffeners can be either attached to an end fitting or a support structure where the flexible pipe passes through the bend stiffener.

API SPEC 17K

Bend Stiffener Ancillary conically shaped component which locally supports the pipe to limit bending stresses and curvature of the pipe to acceptable levels. NOTE: Bend stiffeners can be attached to either an end fitting or a support structure if the flexible pipe passes through the bend stiffener.

ISO13628-2

Bend Stiffener Device for limiting the bend radius of the umbilical by providing a localised increase in bending stiffness NOTE: It is usually a moulded device, sometimes reinforced, depending on the required duty, applied over the umbilical.

ISO 13628-5


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Defined word

Definition

Used in

Bend stiffness Resistance of an umbilical to bending from a straight condition to a radius. Bending stiffness in an umbilical is analogous to the structural stiffness of a rigid steel beam or steel pipe (modulus of elasticity x second area moment of inertia), except it can vary with temperature and pressure levels within hoses. There can also be a significant level of hysteresis, due to the materials of construction. Quantified as the product of applied bending modulus x resultant bend radius of the umbilical. Expressed as kN.m 2 .

API SPEC 17E

Bending stiffness Bending stiffness in a flexible pipe is analogous to the structural stiffness of a rigid beam or pipe (modulus of elasticity times the second area moment of inertia), except that bending stiffness can vary to a large extent with temperature and pressure. It is often quantified as the product of an applied bending moment times the resultant bend radius of the pipe.

API SPEC 17J

Bending Stiffness Bending stiffness in a flexible pipe is analogous to the structural stiffness of a rigid beam or pipe (modulus of elasticity times the second area moment of inertia), except that it can vary to a large extent with temperature and pressure. It is often quantified as the product of an applied bending moment times the resultant bend radius of the pipe.

API SPEC 17K

Bending Stiffness Property analogous to the structural stiffness of a rigid beam or pipe (modulus of elasticity times the second area moment of inertia), except that it can vary to a large extent with temperature and pressure. NOTE: It is often quantified as the product of an applied bending moment and the resultant bend radius of the pipe.

ISO13628-2

Birdcaging Buckling of the tensile armour wires, which results in Significant radial deformation. It is usually caused by extreme axial compression.

API RP 17B

Birdcaging A compressive instability of the armor wires, which causes them to increase their pitch circle diameter locally.

API RP 17I

Bird-caging Phenomenon whereby armour wires locally rearrange with an increase and/or decrease in pitch circle diameter resulting from accumulated axial and radial stresses in the armour layer(s).

ISO 13628-5

Bonded Pipe A flexible pipe in which the steel reinforcement is integrated and bonded to a Vulcanised elastomeric material. Textile material is included in the structure to obtain additional structural reinforcement or to separate elastomeric layers.

API SPEC 17J


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Defined word

Definition

Used in

Bonded Pipe A flexible pipe where the steel reinforcement is integrated and bonded to a vulcanised elastomeric material. Textile material is included in the structure to obtain additional structural reinforcement or to separate elastomeric layers.

API SPEC 17K

Boost Pressure maintained on the spring-return side of a subsea actuator for the purposes of improving closing-time response.

ISO 13628-6

Bore Internal diameter of the hose liner, used dimensionally to denote hose size.

API SPEC 17E

Bore Protector A device which protects internal bore surfaces during drilling or workover operations.

API SPEC 17D

Bore Protector Device which protects internal bore surfaces during drilling or workover operations.

ISO 13628-4

Breaker A textile layer impregnated with rubber included in various layers in the pipe cross section to give additional strength to the pipe, to aid in reducing propagation of cuts in the pipe and to aid the manufacturing process. This layer may be incorporated into either or all of the Cover, Reinforcing Layer and Liner.

API SPEC 17K

Breaking tenacity Term expressing the breaking force of hose reinforcement yarn per unit linear density and expressed in mN/tex, where one tex is the mass in grams of 1,000 meters of yarn.

API SPEC 17E

Built-in end fitting Attachment secured directly to the end, or close to the end of an umbilical, to enable the umbilical to be mechanically anchored so as to resist tensile loads and/or bending moments. The attachment may incorporate a bend stiffener and is typically located at an I/J-tube hang-off or vessel exit point.

API SPEC 17E

Bullnose See pull-in head (3.1.48).

API RP 17I

Bundle Laid-up functional components (hoses, electrical cables, optical fibre cables) and associated fillers in the umbilical prior to sheathing.

API SPEC 17E

Bundle Laid-up functional components (hoses, tubes, electric cables, optical fibre cables) and associated fillers in the umbilical prior to sheathing.

ISO 13628-5

Buoyancy module A buoy used in significant numbers at discrete points over a section of riser to achieve wave shape riser configurations (see 4.5.6). See also definition for subsea buoy.

API RP 17B


8

Defined word

Definition

Used in

Burst disk Weak points in the outer sheath designed to burst when the gas pressure in the annulus exceeds a specified value. The weak point is induced by reducing the thickness of the sheath over a localised area.

API SPEC 17J

Burst-disk Weak point in the outer sheath designed to burst when the gas pressure in the annulus exceeds a specified value. NOTE: The weak point is induced by reducing the thickness of the sheath over a localised area.

ISO13628-2

Cable Generic term used to describe a group of electric cores or optical fibres bundled together. The electrical cores may be taped and/or jacketed to maintain stability and mechanical protection. The fibres may be bundled loosely in a tube or individually in a slotted carrier which is oversheathed for mechanical protection. (See Appendix C Figures 2 and 3).

API SPEC 17E

Cable A generic term used to describe a bundle of insulated electrical conductors or optical fibres. Can also be used in place of the term umbilical.

API RP 17I

Cable A series of round wires of steel or fabric (circular cross-section) spirally wound (stranded) together and used for structurally reinforcing the pipe. Cable wires for flexible pipes are usually brass or copper coated to promote chemical bonding of the elastomer to the wires.

API SPEC 17K

Cable Engine A device for tensioning and paying out cable.

API RP 17I

Calendering The process of passing elastomer compound between rollers to produce smooth sheets of elastomer. This process is also used to cover reinforcing cables and textiles with elastomer to form sheets for winding onto pipes.

API SPEC 17K

Capacitance Measurement of the ability of an electrical cable to store electrostatic charge when potential differences exist between the conductors. Measured in Farads.

API SPEC 17E

Capacitance A measurement of the electrical cable’s ability to store electrostatic charge. This is measured in Farads.

API RP 17I

Carcass An interlocked metallic construction that can be used as the innermost layer to prevent, totally or partially, collapse of the internal pressure sheath or pipe due to pipe decompression, external pressure, tensile armor pressure, and mechanical crushing loads. It may be used externally to protect the external surface of the pipe.

API SPEC 17J


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Defined word

Definition

Used in

Carcass An interlocked metallic construction that can be used as the innermost layer to prevent, totally or partially, collapse of the pipe due to pipe decompression, external pressure, reinforcement layer pressure, and mechanical crushing loads. It may be used externally to protect the external surface of the pipe.

API SPEC 17K

Carcass Interlocked metallic construction that can be used as the innermost layer to prevent total or partial collapse of the internal pressure sheath or pipe due to pipe decompression, external pressure, tensile armour pressure and mechanical crushing loads. NOTE: It may be used externally to protect the external surface of the pipe.

ISO13628-2

Carousel Used for storage and transport of flexible pipe in very long lengths and rotates about a vertical axis. Pipe is wound under tension around the centre hub.

API RP 17B

Carousel A storage container that can be rotated by a drive about a vertical axis. It incorporates an inner core structure and an outer peripheral structure, both of which support the umbilical. The umbilical is stored at nominally zero tension. Carousels that do not have a structure on their outer periphery to support the umbilical are often known as turntables.

API RP 17I

Carousel Storage container which can be rotated by a drive about a vertical axis. NOTE: It incorporates an inner core structure and an outer peripheral structure, both of which support the umbilical. The umbilical is stored at nominally zero tension. Carousels which do not have a structure on their outer periphery to support the umbilical are often known as turntables.

ISO 13628-5

Caterpillar Form of cable engine in which the umbilical is held between two belts.

API RP 17I

Caterpillar Cable engine in which the umbilical is held between belts which transfer motive power to the umbilical.

ISO 13628-5

Characterisation Data Data relating to a component or an umbilical giving an indication of performance but not giving specific accept/reject criteria.

ISO 13628-5

Characteristic impedance AC voltage/current ratio at any point along a transmission line. Measured in Ohms.

API SPEC 17E

Check Valve A device designed to restrict flow in one direction.

API SPEC 17D

Check Valve Device designed to restrict flow in one direction.

ISO 13628-4


10

Defined word

Definition

Used in

Chinese finger Type of gripper or stopper to hold the umbilical via its outside diameter; comprised of a number of spirally interwoven wires attached to an eye. Other types include Siemens Stoppers, Chain Stoppers and BT(M) Stoppers.

API RP 17I

Chinese Finger Type of gripper or stopper to hold the umbilical via its outer diameter, comprising a number of spirally interwoven wires attached to an in-built anchorage arrangement.

ISO 13628-5

Chinese fingers A woven steel wire or fabric sleeve that can be installed over a flexible pipe and drawn tight to grip it for support or applying tension to the pipe.

API RP 17B

Chinese lantern Riser configuration used in shallow water offshore loading systems to connect a PLEM to a buoy directly above it. The upper and lower connections are vertical and excess riser length is supported by distributed buoyancy. See Figure 4.

API RP 17B

Chinese lantern A configuration for a dynamic umbilical.

API RP 17I

Choke and Kill Line Flexible pipe jumper located between choke manifold and blow-out preventer.

API SPEC 17J

Choke and Kill Line Flexible pipe jumper located between choke manifold and blow-out preventer.

API SPEC 17K

Choke and Kill Line Flexible pipe jumper located between a choke manifold and a blow-out preventer.

ISO13628-2

Circulation Control Valve Valve normally placed across the circulation point to allow isolation of the tubing strings or tubingkasing during production.

ISO 13628-3

Circulation Control Valve (CCV)

A valve normally placed across the circulation point to allow isolation of the tubing strings or tubing/ casing during production.

API RP 17C

Circulation Point That location where communication is established between supply and return fluids for TFL servicing.

API RP 17C

Circulation Point Location where communication is established between supply and return fluids for TFL servicing.

ISO 13628-3

Client The company which has a contract with the installer for the installation of the umbilical.

API RP 17I

Coaxial cable Cable for the transmission of signal data of low to high frequency. The conductor pair is arranged concentrically with an annulus of di-electric material between the conductors.

API SPEC 17E


11

Defined word

Definition

Used in

Commanded Closure Closure of the underwater safety valve and possibly other valves depending on the control system design NOTE Such commands may originate manually, automatically or as part of an ESD.

ISO 13628-6

Communication Cable See signal cable.

API RP 17I

Completion Riser A riser that is designed to fit inside a BOP to allow installation of a tubing hanger, and may also be suitable for connection to the tree upper connection for use as a means for running the tree or for use as a workover riser (see workover riser).

API SPEC 17D

Completion Riser Riser that is designed to fit inside a BOP to allow installation of a tubing hanger, and may also be suitable for connection to the tree upper connection for use as a means for running the tree or for use as a workover riser.

ISO 13628-4

Completion workover riser (C m O riser)

The temporary riser used during completion or workover operations.

API RP 17G

Components Hoses and electrical cables incorporated in umbilicals. May also include optical fibre cables.

API SPEC 17E

Compound The name given to the mix of elastomer material and various additives immediately prior to the curing process.

API SPEC 17K

Concentric Bore Tubing Hanger

A tubing hanger where the production bore is concentric with the O.D. of the hanger, normally requiring no orientation during installation.

API SPEC 17D

Conductor Rod of conductive metal. In an electric cable a conductor refers to a conductive material, such as copper in either stranded or solid form used to transmit electrical power and/or electrical communications.

API SPEC 17E

Conductor The part of the cable along which electricity can travel. It is manufactured from conductive material, such as copper, in either stranded, multi-bunched, or solid form.

API RP 17I

Conductor Housing The top of the first casing string which forms the basic foundation of the subsea wellhead and provides attachments for guidance structures.

API SPEC 17D

Conductor Housing Top of the first casing string which forms the basic foundation of the subsea wellhead and provides attachments for guidance structures.

ISO 13628-4

Conductor resistance Linear resistance of an electrical conductor to a direct current. Measured in Ohms.

API SPEC 17E


12

Defined word

Definition

Used in

Connector A device used to join two electrical cables or two optical units.

API RP 17I

Connector A device used to provide a leak tight structural connection between the end fitting and adjacent piping. Connectors include bolted flanges, clamped hubs, and proprietary connectors. They may be designed for diver assisted makeup or for diverless operation using either mechanical or hydraulic apparatus.

API SPEC 17J

Connector A device used to provide a leak tight structural connection between the end fitting and adjacent piping. Connectors include bolted flanges, clamped hubs and proprietary connectors. They may be designed for diver-assisted makeup or for diverless operation using either mechanical or hydraulic apparatus.

API SPEC 17K

Connector Device used to provide a leak-tight structural connection between an end fitting and adjacent piping. NOTE: Connectors include bolted flanges, clamped hubs and proprietary connectors. They may be designed for diver- assisted makeup or for diverless operation using either mechanical or hydraulic apparatus.

ISO13628-2

Control Path Length (CPL)

Total distance that a control signal (electrical or hydraulic) travels to the subsea control module or valve actuator.

ISO 13628-6

Core Generic term used to describe an individual electrically insulated conductor. (See Appendix C, Figure 1).

API SPEC 17E

Core Generic term used to describe an individual electrically insulated conductor.

ISO 13628-5

Corrosion Cap A cap placed over the wellhead to protect it from contamination by debris, marine growth, or corrosion during temporary abandonment of the well.

API SPEC 17D

Corrosion Cap Cap placed over the wellhead to protect it from contamination by debris, marine growth, or corrosion during temporary abandonment of the well.

ISO 13628-4

Corrosion Resistant Alloys (CM)

Non ferrous alloys where any one or the s u m of the specified amount of the following alloy elements exceeds 50%: titanium, nickel, cobalt, chromium, and molybdenum.

API SPEC 17D

Corrosion Resistant Materials (CRM)

Ferrous or non ferrous alloys which are more corrosion resistant than low alloy steels. This term includes CRA's, duplex, and stainless steels.

API SPEC 17D


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Defined word

Definition

Used in

Corrosion Restistant Alloys (CM)

Non ferrous alloys where any one or the s u m of the specified amount of the following alloy elements exceeds 50%: titanium, nickel, cobalt, chromium, and molybdenum.

API SPEC 17D

Corrosion-resistant Alloys Ferrous and non-ferrous alloys which are more corrosion resistant than low alloy steels.

ISO 13628-4

Coupling Device used to splice two hose lengths together. (See Appendix B, Figure 4).

API SPEC 17E

Coupling A device used to join two hose lengths.

API RP 17I

Cover A layer of elastomer between the reinforcing layer and the external environment (or external carcass if provided) used to protect the pipe against penetration of seawater and other external environments, corrosion, abrasion and mechanical damage.

API SPEC 17K

Crab Lay Installation deployment activity whereby the installation vessel moves sideways along, or at the end of, the installation route.

ISO 13628-5

Crimping Method of attaching a coupling or end fitting to a hose by compressing the coupling/fitting abutment with a radially applied load generally by means of a segmented die arrangement. (See Appendix B, Figure 1). Also applies to an abutment which is non-circular in cross-section (e.g. hexagonal), and is compressed by means of a two-part die of the same cross-sectional form, but with reduced dimensions.

API SPEC 17E

Crossing The means by which an umbilical crosses an exposed pipeline.

API RP 17I

Crossover A flexible flowline crossing another pipe already laid on the seabed. The underlying pipe may be a steel pipe or another flexible pipe. It may be required to support the overlying pipe to prevent overbending or crushing of the new or existing pipes.

API SPEC 17J

Crossover A flexible flowline crossing another pipe already laid on the seabed. The underlying pipe may be a steel pipe or another flexible pipe. It may be required to support the overlying pipe to prevent overbending or crushing of the new or existing pipes.

API SPEC 17K


14

Defined word

Definition

Used in

Cross-talk Trespass of electrical energy from one electrical circuit to another. Measured as a power ratio in two configurations: a.) Differential Mode - measured between cores in a pair. b.) Common Mode - measured between cores and screen. Expressed in decibels (dB).

API SPEC 17E

Cross-talk The measurement of noise induced in a signal cable due to an adjacent power cable. This is measured as a power ratio in two ways: a. Differential Mode-measured difference between signal pair. b. Common Mode measured with one signal line grounded, that is, measured between one signal line and ground.

API RP 17I

Curing The process of changing irreversibly, usually at elevated temperatures, the properties of a thermosetting resin or an elastomer compound by chemical reaction. Cure may be accomplished by the addition of curing (cross linking) agents, with or without heat and pressure.

API SPEC 17K

D - The symbol “dl’ refers to the nominal internal diameter of a conduit.

API RP 17C

DC conductor resistance Resistive value of the electrical conductor. Measured in ohms.

API RP 17I

DC loop resistance DC conductor resistance of a pair of conductors connected in series. Measured in Ohms.

API SPEC 17E

Deployment System All equipment involved in the launch and recovery of the ROT system.

ISO 13628-9

Depth Rating The maximum rated working depth of a piece of equipment at a given set of operating conditions.

API SPEC 17D

Depth Rating Maximum rated working depth of a piece of equipment at a given set of operating conditions. This term includes nickel alloys, stainless steels, copper-nickel alloys and titanium.

ISO 13628-4

Design life Specified period of time during which the umbilical shall fulfil its performance requirements.

API SPEC 17E

Design Life Service life multiplied by an appropriate safety factor.

ISO 13628-5


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Defined word

Definition

Used in

Design Methodology Verification Report

An evaluation report prepared by an Independent Verification Agent at the time of an initial review, for a specific manufacturer, confirming the suitability and appropriate limits on the manufacturer’s design methodologies. The Design Methodology Verification Report may include occasional amendments of revisions to address extensions beyond previous limits or revisions of methodologies.

API SPEC 17J

Design Methodology Verification Report

Evaluation report prepared by an independent verification agent at the time of an initial review, for a specific manufacturer, confirming the suitability and appropriate limits of the manufacturer’s design methodologies. NOTE: The design methodology verification report may include occasional amendments or revisions to address the exceeding of previous limits or changes in methodologies.

ISO13628-2

Design plan Schedule of design and qualification activities identifying the stages at which Manufacturer, Purchaser, Third Parties or Independent Inspectorates are involved and, additionally, identifying the specifications involved, procedures, acceptance criteria and instructions that are relevant.

API SPEC 17E

Design Pressure The minimum or maximum pressure, inclusive of operating pressure, surge pressure including shut-in pressure where applicable, vacuum conditions and static pressure head.

API SPEC 17J

Design Pressure The minimum or maximum pressure, inclusive of operating pressure, surge pressure including shut-in pressure where applicable, vacuum conditions and static pressure head.

API SPEC 17K

Design Pressure Minimum or maximum pressure, inclusive of operating pressure, surge pressure including shut-in pressure and, if applicable, vacuum conditions and static pressure head.

ISO13628-2

Design Pressure Rated Working Pressure

Pressure which is equal to or greater than the maximum service conditions, and for which all components are rated.

ISO 13628-6

Design Working Load Maximum tensile load at which the umbilical functionality is unimpaired.

API RP 17I

Design Working Load Maximum working load multiplied by an appropriate safety factor.

ISO 13628-5

Design Working Pressure (DWP)

Maximum working pressure at which a hose or tube is rated for continuous operation.

ISO 13628-5


16

Defined word

Definition

Used in

Direct Hydraulic Control Control method wherein hydraulic pressure is applied through an umbilical line to act directly on a subsea valve actuator. NOTE: Upon venting of the pressure at the surface, the control fluid is returned through the umbilical to the surface due to the action of the restoring spring in the valve actuator. Subsea functions may be ganged together to reduce the number of umbilical lines.

ISO 13628-6

Diverter A device used to direct tools a t a branch connection. A generic term referring to that category of equipment which includes deflectors, diverters, and selectors.

API RP 17C

Diverter Device used to direct tools at a branch connection. NOTE: Used generically, it refers to that category of equipment which includes deflectors, diverters and selectors.

ISO 13628-3

Downstream Direction of movement away from the reservoir.

API SPEC 17D

Downstream Direction of movement away from the reservoir.

ISO 13628-4

Downstream Direction away from the source of pressure or flow.

ISO 13628-6

Drain wire Conductor placed in contact with an electrical screen to improve and maintain the electrical continuity of the screen. (Generally used in conjunction with metallized plastic film screens).

API SPEC 17E

Drift A gage used to check minimum radius of curvature and minimum ID of loops, flowline, and nipples.

API RP 17C

Drift To gauge or measure pipe by means of a mandrel passed through it to ensure the passage of tools, pumps, and other well servicing equipment.

API RP 17G

Drift Gauge used to check the minimum radius of curvature and minimum ID of loops, flowline and nipples.

ISO 13628-3


17

Defined word

Definition

Used in

Dynamic analysis An analysis undertaken of an umbilical system that will be subject to continuous dynamic excitation to help ensure that the system is designed, installed and operated safely and reliably. The results of analysis, typical histories of forces, moments, displacements, stresses, curvatures, deformations may be used in the design phase for checking and refining the proposed system design and determining proper installation procedures. The analysis may be combined with the interaction analysis of other subsea systems such as adjacent dynamic umbilical systems and/or dynamic production risers. Used to determine the motion envelope of the umbilical with respect to other elements (risers, anchor chains, buoys, etc.).

API SPEC 17E

Dynamic Application Flexible pipe is exposed to cyclically varying loads and deflections during normal operation. The pipe is specially constructed to withstand a large number of bending/tensile/torsional cycles.

API SPEC 17J

Dynamic Application Service in which flexible pipe is exposed to cyclically varying loads and deflections during normal operation. The pipe is specially constructed to withstand a large number of bending/tensile/ torsional cycles.

API SPEC 17K

Dynamic Application Application in which the flexible pipe is exposed to cyclically varying loads and deflections during normal operation. NOTE: The pipe is specially constructed to withstand a large number of bending, tensile and torsional cycles.

ISO13628-2

Electrohydraulic Control Control method wherein electrical signals are conducted to the subsea system and used to open or close electrically-controlled hydraulic control valves NOTE: Hydraulic fluid is locally sourced and acts on the associated subsea valve actuator. "Locally sourced" may mean locally stored pressurized fluid or fluid supplied by a hydraulic umbilical line. With electrohydraulic control systems, data telemetry (readback) is readily available at high speed. Multiplexing of the electrical signals reduces the number of conductors in the electrical umbilical.

ISO 13628-6

Emergency disconnect package (EDP)

A subsea equipment package interfacing to the completion riser for bore isolation and circulation, and to the L W , the production tree, and the tree cap for installation/retrieval purposes.

API RP 17G

End fitting Attachment secured directly to the end of hose incorporating one half of a metal-metal seal, used to enable connection of the hose to another piece of equipment.

API SPEC 17E


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Defined word

Definition

Used in

End Fitting An attachment secured directly to the end of a hose incorporating one-half of a metal-metal seal, used to enable connection of the hose to another piece of equipment. See also coupling (3.1.20).

API RP 17I

End Fitting A mechanical device which forms the transition between the flexible pipe body and the connector. The different pipe layers are terminated in the end fitting in such a way as to transfer the load between the flexible pipe and the connector.

API SPEC 17J

End Fitting Mechanical device which forms the transition between the flexible pipe body and the connector. NOTE: The different pipe layers are terminated in the end fittings in such a way as to transfer the load between the flexible pipe and the connectors.

ISO13628-2

End termination Mechanical fitting attached to the end of an umbilical which provides a means of transferring installation and operating loads, fluid and electrical services to a mating assembly mounted on the subsea installation or surface facility.

API SPEC 17E

End Termination Mechanical fitting attached to the end of an umbilical which provides a means of transferring installation and operating loads, fluid and electrical services to a mating assembly mounted on the subsea facility or surface facility.

ISO 13628-5

Environmental seal The outermost pressure- containing seal at a connector interface. This seal normally separates a pressurised medium from the surrounding environment.

API RP 17G

Extension Sub Sealing tubular member that provides tree bore continuity between adjacent tree components.

API SPEC 17D

Extension Sub Sealing tubular member that provides tree bore continuity between adjacent tree components.

ISO 13628-4

Factory acceptance test The test series carried out on the complete umbilical system and normally witnessed by the client at the manufacturer’s premises as soon as practicable after manufacture is complete. The results of these tests are submitted to the client for approval.

API RP 17I

Factory acceptance test (FAT)

A test conducted by the manufacturer to verify that the manufacture of a specific assembly meets all intended functional and operational requirements.

API RP 17G

Factory Acceptance Test (FAT)

Series of tests carried out on the complete umbilical system after manufacture is complete, to verify the integrity of the umbilical.

ISO 13628-5


19

Defined word

Definition

Used in

Fail Closed Valve An actuated valve designed to fail to the closed position.

API SPEC 17D

Fail Closed Valve Actuated valve designed to fail to the closed position.

ISO 13628-4

Fail Open Valve Actuated valve designed to fail to the open position.

ISO 13628-4

First End Connect2on The connection in ade a the initiation of the pipe laying process.

API SPEC 17D

First-foot sample (also, test portion sample or first-in sample)

A sample taken after approximately 1 ft. (0,3m) of cargo has been loaded into a vessel`s tank.

API RP 17 A

Fishscaling The tendency of one tensile armor wire edge to lift off of the underlying layer because of deflection or incorrect twist deformation during armor winding.

API SPEC 17J

Fish-scaling Tendency of one tensile armour wire edge to become detached from the underlying layer either because of deflection or because of incorrect twist deformation during armour winding.

ISO13628-2

Flexible Flowline A flexible pipe, wholly or in part, resting on the seafloor or buried below the seafloor, and used in a static application. The term flowline is used in this document as a generic term for flexible flowlines.

API SPEC 17J

Flexible Pipe An assembly of a pipe body and end fittings. The pipe body comprises a composite of layered materials that form a pressure-containing conduit. The pipe structure allows large deflections without a significant increase in bending stresses. Normally the pipe body is built up as a composite structure comprising metallic and polymer layers. The term pipe is used in this document as a generic term for flexible pipe.

API SPEC 17J

Flexible Pipe Assembly of a pipe body and end fittings. NOTE: The pipe body comprises a composite of layered materials that form a pressure-containing conduit. The pipe structure allows large deflections without a significant increase in bending stresses. Normally the pipe body is built up as a composite structure comprising metallic and polymer layers. The term "pipe" is used in this part of IS0 13628 as a generic term for flexible pipe.

ISO13628-2

Flexible pipe system A fluid conveyance system for which the flexible pipe(s) is the primary component and includes ancillary components attached directly or indirectly to the pipe.

API RP 17B


20

Defined word

Definition

Used in

Flexible Riser A flexible pipe connecting a plat-form/buoy/ship to a flowline, seafloor installation, or another platform. The riser may be freely suspended (free, catenary), restrained to some extent (buoys, chains), totally restrained, or enclosed in a tube (I or J tubes).

API SPEC 17J

Floating vessel An offshore drilling structure that floats and is not secured to the seafloor except by means of il anchors. Semisubmersible drilling rigs and drill ships are floating vessels.

API RP 17G

Flow Loops Piping which connects the outlet(s) of the subsea tree to the subsea flowline connection and/or to other tree piping. connections (crossover piping, etc.).

API SPEC 17D

Flow Loops Piping which connects the outlet(s) of the subsea tree to the subsea flowline connection and/or to other tree piping connections (crossover piping, etc.)

ISO 13628-4

Flowline Any pipeline connecting to the subsea tree assembly.

API SPEC 17D

Flowline Service Line

Line from a platform or land facility to a subsea facility used for TFL servicing. NOTE: It may also be used for production or other testing of the well.

ISO 13628-3

Flowline Any pipeline connecting to the subsea tree ssembly.

ISO 13628-4

Flowline Connector Support Frame

A structural frame which receives and supports the flowline connector and transfers flowline loads back into the wellhead structure.

API SPEC 17D

Flowline Connector Support Frame

Structural frame which receives and supports the flowline connector and transfers flowline loads back into the wellhead or seabed anchored structure.

ISO 13628-4

Flowline Connector System The equipment used to attach subsea pipelines and/or control umbilicals to a subsea tree. The system may include means to guide the end of the pipeline or umbilical into place and may include remote connection or disconnection capability.

API SPEC 17D

Flowline Connector System Equipment used to attach subsea pipelines and/or control umbilicals to a subsea tree. NOTE: The system may include means to guide the end of the pipeline or umbilical into place and may include remote connection or disconnection capability.

ISO 13628-4


21

Defined word

Definition

Used in

Flowline Signature Service Line Signature

Particular set of pressure pulses (spikes) read or recorded at the surface that identifies a certain point in the service/flowline or well as tools are pumped past.

ISO 13628-3

Free hanging catenary Riser configuration-see Figure 4.

API RP 17B

Functional Components Components included within an umbilical which are required to fulfil the operational service needs. EXAMPLES: Hoses, tubes, electric/optical fibre cables.

ISO 13628-5

Functional specification Document that specifies the totality of needs expressed by features, characteristics, process conditions, boundaries and exclusions defining the performance of a product or service including QA requirements.

API SPEC 17E

Functional Specification Document that specifies the totality of needs expressed by features, characteristics, process conditions, boundaries and exclusions defining the performance of a product or service including quality assurance requirements.

ISO 13628-5

Gas-free A tank, compartment or container is gas-free when sufficient fresh air has been introduced into it to lower the level of any flammable, toxic or inert gas to that required for a specific purpose, e.g. hot work, entry etc.

API RP 17 A

Guide Funnel Tapered enlargement at the end of a guidance member to provide primary guidance over another guidance member.

API SPEC 17D

Guide Funnel Tapered enlargement at the end of a guidance member to provide primary guidance over another guidance member.

ISO 13628-4

Guide Lineless Systems Systems which do not depend on the establishment of guide lines from the seafloor to the surface vessel for guidance and alignment of subsea equipment during installation, operation, intervention, or retrieval.

ISO 13628-4

Guide Lines Taut lines from the seafloor to the surface for the purpose of guiding equipment to the seafloor structure.

ISO 13628-4

Guidelineless Systems Systems which do not depend on the establishment of guidelines from the seafloor to the surface vessel for guidance and alignment of subsea equipment during installation, operation, intervention] or retrieval.

API SPEC 17D


22

Defined word

Definition

Used in

Harmonised document Documents intended for international use, particularly those that have been ratified by the appropriate international bodies.

API RP 17I

Heattrace An element incorporated into pipe structure to provide heating.

API RP 17B

Heave-compensated System System that limits the effect of vertical vessel motion on the deployed ROT system.

ISO 13628-9

High Pressure Riser A tubular member which extends the wellbore from the mudline tubing spool to a surface BOP.

API SPEC 17D

High Pressure Riser Tubular member which extends the wellbore from the mudline wellhead or tubing spool to a surface BOP.

ISO 13628-4

H-member A nipple assembly that provides fluid communication and circulation between strings of tubing in the wellbore.

API RP 17C

H-member Nipple assembly that provides fluid communication and circulation between strings of tubing in the wellbore.

ISO 13628-3

Hose Flexible pressure containing pipe which can perform functions similar to a rigid pipe and withstand repeated flexure at small radii without adverse effects.

API SPEC 17E

Hose A flexible pipe that can perform functions similar to a rigid pipe and withstand repeated flexure at small radii without adverse effects.

API RP 17I

Hose assembly Length of hose with an end fitting attached at each end.

API SPEC 17E

Hose assembly A length of hose with end fittings installed at each end.

API RP 17I

Hose liner Innermost component of a hose providing the diaphragm seal for containing and conveying fluids. Sometimes referred to as the core tube. (See Appendix C, Figure 5).

API SPEC 17E

Hose reinforcement Or more layers of high tenacity synthetic fibre applied around the hose liner to provide the design pressure rating requirements. (See Appendix C, Figure 5).

API SPEC 17E


23

Defined word

Definition

Used in

Host Facility Fixed or floating facility to which the umbilical is mechanically and functionally connected and which provides the functions and services to be transmitted through the umbilical. EXAMPLES: Platform, buoy, floating production system.

ISO 13628-5

Hydrogen Getter Medium, within an optical fibre system, that absorbs hydrogen.

ISO 13628-5

Hydrostatic Test Pressure Proof Pressure

Maximum test pressure at a level greater than the design pressure (rated working pressure).

ISO 13628-6

Inboard Tree Piping Subsea tree piping which is upstream of the first tree wing valve.

ISO 13628-4

Inboard Tree Pipling Subsea tree piping which is upstream of the first tree wing valve.

API SPEC 17D

Independent Verification Agent

An independent party or group, selected by the manufacturer, that can verify the indicated methodologies or performance based on the technical literature, analyses, and test results and other information provided by the manufacturer. The agent is also called upon to witness some measurements and tests related to material qualification.

API SPEC 17J

Independent Verification Agent

Independent party or group, selected by the manufacturer, that can verify the indicated methodologies or performance in the light of the technical literature, analyses, test results and other information provided by the manufacturer. NOTE: The agent is also called upon to witness some measurements and tests related to material qualification.

ISO13628-2

Inductance Constant relating the electromagnetic force induced within the electrical cable to the current variation with time. Measured in Webers per ampere and has a SI derived unit of Henry.

API SPEC 17E

Inductance A measurement of electromagnetic force induced within the electrical cable. This is measured in Webers per ampere and has a SI derived unit of Henry.

API RP 17I

Inspection and test plan Schedule of inspection and test activities identifying the stages at which Manufacturer, Purchaser, Third Parties, or Independent Inspectorates are involved and, additionally, identifying the specifications involved, procedures, acceptance criteria and instructions that are relevant.

API SPEC 17E

Installer The organisation responsible for the installation of the umbilical.

API RP 17I


24

Defined word

Definition

Used in

Insulated conductor Conductor insulated with a suitable dielectric material.

API SPEC 17E

Insulation Layer of dielectric material covering an electrical conductor.

API SPEC 17E

Insulation Layer An additional layer added to the flexible pipe to increase the thermal insulation properties. The layer is usually located between the outer tensile armor layer and the outer sheath.

API SPEC 17J

Insulation Layer Additional layer added to the flexible pipe to increase its thermal insulation properties. NOTE: The layer is usually located between the outer tensile armour layer and the outer sheath.

ISO13628-2

Insulation resistance Resistance of the conductor insulation when applied with a constant DC potential across the cable insulation. Measured in Ohms.

API SPEC 17E

Insulation resistance The resistance in ohms of a conductor’s insulation when a constant DC potential is applied across the cable insulation.

API RP 17I

Integrated service umbilical (ISUm)

A structure in which the inner core is a standard flexible pipe construction. Umbilical components are wound around the core pipe and covered with a protective outer sheath (see 4.3.4).

API RP 17B

Intermediate Sheath Extruded polymer layer located between internal pressure and outer sheaths, which may be used as a barrier to external fluids in smooth bore pipes or as an anti-wear layer.

API SPEC 17J

Intermediate Sheath Extruded polymer layer located between internal pressure and outer sheaths. NOTE: This layer may be used either as a barrier to external fluids in smooth bore pipes or as an anti-wear layer.

ISO13628-2

Internal Pressure Sheath Polymer layer that ensures internal-fluid integrity. This layer may consist of a number of sub-layers.

API SPEC 17J

Internal Pressure Sheath Polymer layer that ensures internal fluid integrity. NOTE: This layer may consist of a number of sub-layers.

ISO13628-2

Intervention Fixtures Devices or features permanently fitted to subsea well equipment to facilitate subsea intervention tasks including, but not limited to: - grasping intervention fixtures - docking intervention fixtures - landing intervention fixtures - linear actuator intervention fixtures - rotary actuator intervention fixtures - fluid coupling intervention fixtures -

ISO 13628-4


25

Defined word

Definition

Used in

Intervention System Means to deploy or convey intervention tools to subsea well equipment to. Carry out intervention tasks including: remotely operated vehicle (ROW atmospheric diving system (ADS) diver

API SPEC 17D

Intervention System Means to deploy or convey intervention tools to subsea well equipment to carry out intervention tasks including: - ROV; - ROT; - ADS; - diver

ISO 13628-4

Intervention Tools A device or remotely operated tool deployed by an intervention system to mate or interface with intervention fixtures.

API SPEC 17D

Intervention Tools Device or ROT deployed by an intervention system to mate or interface with intervention fixtures.

ISO 13628-4

Invervention Fixtures Devices or features permanently fitted to subsea well equipment to facilitate subsea intervention tasks including] but not limited to: grasping intervention fixtures docking intervention fixtures landing intervention fixtures linear actuator intervention fixture

API SPEC 17D

Invervention Fixtures Devices or features permanently fitted to subsea well equipment to facilitate subsea intervention tasks including] but not limited to: grasping intervention fixtures docking intervention fixtures landing intervention fixtures linear actuator intervention fixture rotary actuator intervention fixtures fluid coupling intervention fixtures

API SPEC 17D

Joint Means of joining together two lengths of umbilical to effect a repair or to achieve the required production length.

API SPEC 17E

Joint A means of joining together two lengths of umbilical. This is also known as a joint box, splice box, or repair joint.

API RP 17I

JS Riser configuration similar to a lazy-S (see Figure 4). with the exception that the lower catenary passes back underneath the subsea buoy. Also called reverse ~ s.

API RP 17B

J-tube A vertical pipe from the seabed to the platform topsides through which an umbilical can be routed. It begins just above the mudline and includes a bend at the bottom end (for which it is named).

API RP 17I


26

Defined word

Definition

Used in

J-tube seal A device for sealing the annular space between the umbilical and the wall of the J-tube.

API RP 17I

Jumper Short flexible pipe used in subsea and top-side, static, or dynamic applications.

API SPEC 17J

Jumper Short flexible pipe used in subsea and topside, static or dynamic applications.

ISO13628-2

Jumper bundle Group of electric cables or hoses on their own or with combinations of each other bundled or cabled together to provide a flexible connection between subsea systems, or between a subsea termination/ subsea distribution unit and a subsea system.

API SPEC 17E

Kilometre point The distance along the route as laid.

API RP 17I

Lay Angle This is the angle between the axis of a spiral wound element (for example, armor wires) and a line parallel to the flexible pipe longitudinal axis.

API SPEC 17J

Lay Angle Angle between the axis of a spiral wound element (e.9. armour wires) and a line parallel to the flexible pipe longitudinal axis.

ISO13628-2

Lay-up Operation of assembling electrical cores or optical fibres into a cable, or hoses, electric cables, optical fibre cables into a bundle, or sub-bundle. Also known as cabling.

API SPEC 17E

Lay-up Cabling Operation of assembling electrical cores or optical fibres into a cable, or hoses, tubes, electric cables, optical fibre cables into a bundle, or sub-bundle.

ISO 13628-5

Lazy S Riser configuration-see Figure 4.

API RP 17B

Lazy wave Riser configuration-see Figure 4. API RP 17B

Lifting device A tool dedicated for lifting.

API RP 17G

Linear density Mass per unit length of yarn expressed in tex, where one tex is the mass in grams of 1,000 meters of yarn. E.g. A yarn designated 330 tex has a mass of 330 g per 1,000 m length.

API SPEC 17E

Locomotive (piston) A finned (cup) device to transport and manipulate TFL tools.

API RP 17C

Loop A curved section of pipe allowing change in direction of TFL pipelines.

API RP 17C

Loop Curved section of pipe allowing change in direction of TFL flowlines.

ISO 13628-3


27

Defined word

Definition

Used in

Lower Workover Riser Package (LWRP)

A unitised assembly that interfaces with the tree upper connection and allow a sealing of the tree production bores). May also allow disconnect from the top connection of the LWRP, to permit retrieval of the workover riser, while wireline equipment is in the tree bore(s).

API SPEC 17D

Lower workover riser package (LWRP)

A subsea equipment package containing valving and BOP rams, which are sometimes required for safe well completion and workover operations through the subsea tree.

API RP 17G

Lubricator A tube and valve assembly that permits tool strings to be inserted into and removed from a pressurised system.

API RP 17C

Lubricator Tube and valve assembly that permits tool-strings to be inserted into and removed from a pressurized system.

ISO 13628-3

Lubricator adapter The means of attaching a wireline lubricator or coiled tubing unit to the top of the surface tree.

API RP 17G

LWRP Unitized assembly that interfaces with the tree upper connection and allows sealing of the tree vertical bore(s). NOTE: This may also allow disconnection from the top connection of the LWRP, to permit retrieval of the workover riser while wireline equipment is in the tree bore(s)

ISO 13628-4

Manufacturer Manufacturer of the umbilical and/or its component parts.

API SPEC 17E

Manufacturer The manufacturer of the umbilical or its component parts.

API RP 17I

Manufacturer’s written specification

Specification for the umbilical and the umbilical components and their manufacture, generated by the Manufacturer in response to Purchaser specified requirements. The specification may comprise a multiplicity of documents (Design Plan, Test Procedures, Inspection and Test Plan, etc.).

API SPEC 17E

Manufacturer’s written specification

Specification of umbilical and umbilical components supplied by the manufacturer to the client or installer.

API RP 17I

Manufacturer’s Written Specification

Specification for the umbilical, the umbilical components and their manufacture, generated by the manufacturer in compliance with requirements specified by the purchaser and this part of ISO 13628. NOTE: The specification may comprise a multiplicity of documents (design plan, inspection and test plan, test procedures, etc.).

ISO 13628-5


28

Defined word

Definition

Used in

Maximum working load Maximum working tensile load that the umbilical can withstand continuously during loadout, deployment and/or in the installed configuration without suffering damage or loss of performance. Note: As the bending radius of the umbilical decreases, the maximum working load decreases.

API SPEC 17E

Maximum Working Load Maximum working tensile load that the umbilical can continuously withstand during handling and/or in the installed configuration without suffering damage or loss of performance. NOTE: As the bending radius of the umbilical decreases, the maximum working load decreases.

ISO 13628-5

May Indicates a possible course of action.

API SPEC 17E

Messenger Wire A device installed or pre-fitted into an I-tube or J-tube for transferring the primary pulling device, usually a rope, into the tube to provide the means of pulling an umbilical through the tube.

ISO 13628-5

Minimum bend radius Minimum bend radius to which a functional component (hose, electric cable, etc.), or umbilical may be bent during processing, reeling and unreeling, storage and during installation, service and recovery. It is measured from the inside of the bend. (See Appendix B, Figure 3).

API SPEC 17E

Minimum Bend Radius Bend radius to which a functional component (electrical/optical fibre cable, hose, tube, umbilical, etc.) may be bent during processing, reeling and unreeling, storage and installation, service and recovery without damage. NOTE: Minimum bend radius is measured from the centre of the bend to the functional component outer diameter on the inside of its bend which may vary with the load applied to the component or umbilical.

ISO 13628-5

Minimum breaking load Minimum tensile load that the umbilical can sustain before mechanical failure occurs when the load is applied with the umbilical in the straight condition.

API SPEC 17E

Minimum Breaking Load Minimum tensile load that the umbilical can sustain before mechanical failure occurs when the load is applied with the umbilical in a straight condition.

ISO 13628-5

Minimum Operating Pressure Lowest operating pressure, at any point in the system, during normal conditions at which the system can operate effectively.

ISO 13628-6

Misalignment Connections Special connection devices which allow lateral angular, and/or rotational misalignment between the fluid containing components being connected, sometimes used to facilitate connection of pipelines to subsea trees.

API SPEC 17D


29

Defined word

Definition

Used in

Moon Pool A central passage directly under the rotary table in a floating vessel through which subsea equipment may be lowered into place or retrieved to the surface.

API SPEC 17D

Mudline Suspension System Drilling system consisting of a series of housings used to support casing strings at the mudline, installed from a bottom-supported rig using a surface BOP.

ISO 13628-4

Mudline Suspension System (MLS)

A drilling system consisting of a series of housings used to support casing strings at the mudline, installed from a bottom supported rig using a surface BOB.

API SPEC 17D

Multi bore Multiple flexible pipes and/or umbilicals are contained in a single construction. An outer sheath is extruded over the bundle (see 4.3.5).

API RP 17B

Multi-coupler Multiway connector arrangement comprising two stabplate sub-assemblies, one of which comprises a number of hydraulic and/or electric and/or optical coupler halves, each carrying a separate service, which mate simultaneously with corresponding coupler halves on the other sub-assembly, when the two sub-assemblies are brought together.

ISO 13628-5

Multiple configuration A riser system which has more than one riser connected at a mid-depth location, such as at a subsea buoy/arch system.

API RP 17B

Nonpressure Containing/Controlling Parts

Structural and other parts that do not contain or control pressure, such as guidebases, guideframes, and wear bushings.

API SPEC 17D

Nonpressure-Containing/Controlling Parts

Structural and other parts that do not contain or control pressure, such as guidebases, guideframes, and wear bushings.

ISO 13628-4

Off Set Horizontal component of CPL.

ISO 13628-6

Operating envelope That limited range of parameters in which operations will result in safe and acceptable equipment performance.

API RP 17G

Oriented Tubing Hangers A tubing hanger having two or more separate parallel bores and requiring orientation during installation.

API SPEC 17D

Orienting Bushings Nonpressure containing parts which are used to orient equipment or tools with respect to the wellhead.

API SPEC 17D

Orienting Bushings Non-pressure-containing parts which are used to orient equipment or tools with respect to the wellhead.

ISO 13628-4


30

Defined word

Definition

Used in

Oscillatory lay-up Method of laying-up, whereby the components to be cabled together are rotated around the axis of the cabled product, typically 360¡-720¡, followed by a reversal in the direction of rotation for a similar level of angular rotation, after which the rotation sequence is repeated. Also known as ÒSZÓ lay-up. (See Appendix D, Figure 2).

API SPEC 17E

Outboard Tree Piping Subsea tree piping which is downstream of the first tree wing valve and upstream of flowline connector (see flow loop).

API SPEC 17D

Outboard Tree Piping Subsea tree piping which is downstream of the first tree wing valve and upstream of flowline connector (see flow IOOP)

ISO 13628-4

Outer Sheath Polymer layer used to protect the pipe against penetration of seawater and other external envi-ronments, corrosion, abrasion and mechanical damage, and to keep the tensile armors in position after forming.

API SPEC 17J

Outer Sheath Polymer layer used to protect the pipe against penetration by sea water and other external environments, corrosion, abrasion and mechanical damage, and to keep the tensile armours in position after forming.

ISO13628-2

Ovalization The out-of-roundness of the pipe, defined as the following: D,, - D m i n L" + D m , where D- and D- are maximum and minimum pipe diameter respectively.

API RP 17B

Oversheath Additional extruded thermoplastic covering used to build-up the outside diameter of an electric cable, or a hose. Used to provide additional protection and/or oversheath: additional extruded thermoplastic covering used to build-up the outside diameter of an electric cable, or a hose. Used to provide additional protection and/or to increase the diameter to meet geometrical requirements during bundle or sub-bundle lay-up. May also be locally applied to an umbilical to meet a specific installation or operational requirement, e.g. abrasion protection

API SPEC 17E

Pair Cable for the transmission of electrical power or low frequency signals consisting of two insulated conductors twisted together with a constant lay length. The cable may be screened to reduce cross-talk. (See Appendix C, Figures 2 and 3). arrangement. Also referred to as a shield.

API SPEC 17E


31

Defined word

Definition

Used in

Parking System A system whereby tmls/equipment for a particular hydraulic tubing size are transported through a flowline of a larger size by a transport (carrier) piston string which is left behind or “parked” outside the well while the remaining equipment continues into the tubing.

API RP 17C

Parking System System whereby tooldequipment for a particular tubing size are transported through a flowline of a larger size by a transport (carrier) piston string which is left behind or "parked" outside the well while the remaining equipment continues into the tubing.

ISO 13628-3

Permanent Guidebase A structure that sets alignment and orientation of the wellhead system and provides entry guidance for running equipment on or into the wellhead assembly.

API SPEC 17D

Permanent Guidebase Structure that sets alignment and orientation of the wellhead system and provides entry guidance for running equipment on or into the wellhead assembly.

ISO 13628-4

Permeability Characteristic of a material which allows liquid or gas to diffuse through it.

API SPEC 17E

Piggyback Two pipes attached at regular intervals with clamps. Either or both of the pipes may be flexible.

API SPEC 17J

Piggyback Two pipes attached at regular intervals with clamps. NOTE: Either or both of the pipes may be flexible.

ISO13628-2

Pipeline The line ($ from a platform or land facility to a subsea facility used for TFL servicing. It may be a flowline also used for production or other testing of the well.

API RP 17C

Pipeline Signature A particular set of pressure pulses (spikes) read or recorded at the surface that identifies a certain point in the well as tools are pumped past.

API RP 17C

Planetary lay-up Method of laying-up, whereby the elements (electrical cores, components, etc.), to be cabled together are continuously rotated in the same direction around the axis of the cabled product such that the elements are incorporated in the form of continuous helixes. The method necessitates rotating the element lengths to be laid-up which is typically undertaken by a revolving carriage into which the individual lengths are located on their processing reels. (See Appendix D, Figure D1).

API SPEC 17E


32

Defined word

Definition

Used in

Plug Catcher Device at the bottom of the tubing hanger annulus bore to prevent the wireline plug from passing through the tubing hanger when an annulus string is not used.

ISO 13628-4

Power cable Cable designed to transmit electrical energy at electrical transmission voltages up to and including standard rated voltages Uo /U(Um ) =3.6/6 (7.2) kV rms.

API SPEC 17E

Power Operated Fail Closed Valve

Hydraulically or electrically actuated valve designed to fail to the closed position.

ISO 13628-4

Pressure Armor Layer Structural layer with a lay angle close to 90 degrees, that increases the resistance of the flexible pipe to internal and external pressure and mechanical crushing loads. The layer also structurally supports the internal pressure sheath and typically consists of an interlocked metallic construction, which may be backed up by a flat metallic spiral layer.

API SPEC 17J

Pressure Armour Layer Structural layer, with a lay angle close to go", that increases the resistance of the flexible pipe to internal and external pressure and to mechanical crushing loads. NOTE: The layer also structurally supports the internal pressure sheath and typically consists of an interlocked metallic construction, which may be backed up by a flat metallic spiral layer.

ISO13628-2

Pressure Containing Parts Those parts whose failure to function as intended would result in a release of retained fluid to the atmosphere. Examples are bodies, bonnets, and stems.

API SPEC 17D

Pressure containing parts Those parts whose failure to function as intended would result in a release of retained fluid to the atmosphere. Examples are bodies, bonnets, and stems.

API RP 17G

Pressure Controlling Parts Those parts whose failure to function as intended would result in a release of retained fluid to the atmosphere. Examples are bodies, bonnets, and stems.

API SPEC 17D

Pressure controlling parts Those parts intended to control or regulate the movement of pressurised fluids, such as valve bore sealing mechanisms and hangers.

API RP 17G

Pressure Controlling Parts Those parts intended to control or regulate the movement of pressurized fluids, such as valve bore sealing mechanisms and hangers.

ISO 13628-4


33

Defined word

Definition

Used in

Pressure decay test Test to determine the amount by which the pressure falls in a hose after having being raised to a particular level and then isolated from the pressurising source. Used to demonstrate the characteristics of a hose due to creep of the hose materials of construction and the hydraulic integrity of a hose.

API SPEC 17E

Pressure-containing Parts Those parts whose failure to function as intended would result in a release of retained fluid to the environment. EXAMPLES: Bodies, bonnets and stems.

ISO 13628-4

Primary Intervention All work carried out during the scheduled intervention task.

ISO 13628-9

Profile A profile is an internal conduit configuration (receptacle) used to engage tools.

API RP 17C

Profile Internal conduit configuration (receptacle) used to engage tools.

ISO 13628-3

Proof pressure test Constant pressure, higher than its maximum working pressure, applied to a hose/assembly for a short duration to demonstrate its integrity without causing destruction or deterioration.

API SPEC 17E

Pull-in Head Device used for terminating the end of an umbilical so that it can be loaded/offloaded from a vessel and pulled along the seabed and/or through an I-tube or J-tube. NOTE: In some designs the terminated armours may be used to anchor the umbilical at the top of the I-tube or J-tube. It normally comprises a streamlined cylindrical housing into which the umbilical armouring is terminated and within which the ends of the functional components are contained. It is usually capable of rapid disassembly to access the components for post-pull-in tests and monitoring. A form of pull-in head may also be used at the subsea end of the umbilical.

ISO 13628-5

Pull-in Head Part of the pull-in system acting as attachment point for the end of the pull-in wire.

ISO 13628-9

Quad Cable for the transmission of electrical power or low frequency signals consisting of four insulated conductors twisted together in a symmetrical arrangement with a constant lay length. The cable may be screened to reduce cross-talk. (See Appendix C, Figures C2 and C3).

API SPEC 17E

Quality Conformance to specified requirements.

API SPEC 17J

Quality Conformance to specified requirements.

ISO13628-2


34

Defined word

Definition

Used in

Quality assurance Planned, systematic and preventative actions which are required to ensure that materials, products or services will meet specified requirements.

API SPEC 17E

Quality Assurance Those planned, systematic, and preventive actions which are required to ensure that materials, products, or services will meet specified requirements.

API SPEC 17J

Quality Assurance Planned, systematic and preventive actions which are required to ensure that materials, products or services will meet specified requirements.

ISO13628-2

Quality control Inspection, test or examination to ensure that materials, products or services conform to specified requirements.

API SPEC 17E

Quality Control Inspection, test, or examination to ensure that materials, products, or services conform to specified requirements.

API SPEC 17J

Quality Control Inspection, test or examination to ensure that materials, products or services conform to specified requirements.

ISO13628-2

Quality Program An established documented system to ensure quality.

API SPEC 17J

Rapid decompression Sudden depressurisation of a system. Gas in the pipe will expand rapidly and may cause blistering or collapse of the internal pressure sheath or other gas-saturated layers.

API RP 17B

Rated Working Pressure Maximum internal pressure equipment is designed to contain and/or control. NOTE: Working pressure is not to be confused with test pressure.

ISO 13628-4

Recess A recess is an enlargement in conduit bore, generally concentric with the bore.

API RP 17C

Recess Enlargement in conduit bore, normally concentric with the bore.

ISO 13628-3

Reel Large diameter structures used for storage of flexible pipe in long lengths and rotates about a horizontal axis.

API RP 17B

Reel Device for storing umbilicals or components comprising two flanges, separated by a barrel, with the barrel axis normally being horizontal.

ISO 13628-5


35

Defined word

Definition

Used in

Re-entry Spool Tree upper connection profile, which allows remote connection of a tree running tool, LWRP or tree cap.

ISO 13628-4

Reenty spool The uppermost part of a subsea tree to which the C/WO riser is attached to gain vertical well access. Also, the uppermost part of a LWRP to which an EDP connector is attached to provide a single disconnect point.

API RP 17G

Response Time Sum of the signal time and the shift time.

ISO 13628-6

Riser base Seabed structure (gravity or piled) for Supporting subsea buoyiarch systems and l or riser/flowline.

API RP 17B

Riser hangoff Structure for supporting riser at the connection to a platform (jacket, semisub, tanker, etc.).

API RP 17B

Riser Tieback Tubular members that extend wellbores and annuli from the seafloor to the surface.

API SPEC 17D

ROT System Dedicated, unmanned, subsea tools used for remote installation or module replacement tasks that require lift capacity beyond that of free-swimming ROV systems. NOTE: The ROT system comprises wire-suspended tools with control system and suppori-handling system for performing dedicated subsea intervention tasks. They are usually deployed on lifîwires or a combined liftwire/umbilical. Lateral guidance may be via guidewires, dedicated thrusters or ROV assistance.

ISO 13628-9

Rough Bore A flexible pipe with a carcass as the innermost layer.

API SPEC 17J

Rough Bore Flexible pipe with a carcass as the innermost layer.

ISO13628-2

Roving Layer of fibres, usually in string form, helically applied around bundled components to act as a bedding layer or around an armor layer to provide protection to the galvanising, and if required, colour identification (see Appendix E, Figures E2 and E3).

API SPEC 17E

Running Tool A tool used to run, retrieve, position, or connect subsea equipment remotely from the surface. Examples are tree running tools, tree cap running tools, flowline connector running tools etc.

API SPEC 17D

Running Tool Tool used to run, retrieve, position, or connect subsea equipment remotely from the surface EXAMPLES Tree running tools, tree cap running tools, flowline connector running tools, etc.

ISO 13628-4


36

Defined word

Definition

Used in

Running Tool Tool used to operate, retrieve, position or connect subsea equipment remotely from the surface. NOTE: An example is the subsea control-module running tool.

ISO 13628-6

Screen Conducting layer applied around laid-up electrical cores to minimise electrical interference from another circuit or around individual power cores to provide a uniform radial electrical field in a power cable or power cable arrangement. Also referred to as a shield.

API SPEC 17E

Sealine Flowline, service line, cable, umbilical or pipeline

ISO 13628-1

Sealines All pipelines, flowlines, umbilicals and cables installed on the seabed.

ISO 13628-9

Sealing Bore The sealing bore is the polished section of conduit that receives a packing element.

API RP 17C

Sealing Bore Polished section of conduit that receives a packing element.

ISO 13628-3

Second End Connection The connection made at the termination of the pipelaying process.

API SPEC 17D

Second End Connection Connection made at the termination of the pipelaying process.

ISO 13628-4

Service Life The period of time during which the flexible pipe fulfils all performance requirements.

API SPEC 17J

Service Life Period of time during which the flexible pipe fulfils all performance requirements.

ISO13628-2

Service Life Specified duration that the umbilical system shall be capable of meeting the functional requirements.

ISO 13628-5

Shall Indicates mandatory requirement.

API SPEC 17E

Sheath Covering of an electric cable, a hose, a bundle, a sub-bundle or an outer armor layer by a layer of polymeric, impervious, or non-impervious material to provide mechanical protection and/or to meet geometrical requirements as part of the umbilical lay-up (see Appendix E, Figures E1 and E3).

API SPEC 17E

Shift Time Period of time elapsed between the arrival of a control signal at the subsea location and the completion of the control function execution. NOTE: Of primary interest is the time to fully stroke, on a subsea tree, a master or wing valve that has been designated as the underwater safety valve.

ISO 13628-6


37

Defined word

Definition

Used in

Should Indicates preferred course of action or is recommended as good practice.

API SPEC 17E

Signal cable Cable for the transmission of electrical control and communication signals up to and including standard rated voltages Uo/U = 0.6/1kV rms. Sometimes called a telecommunication (telecom) cable and frequently screened. .

API SPEC 17E

Signal Time Period of time elapsed between the remote initiation of a control command and the initiation of a control function operation subsea.

ISO 13628-6

Skid System Storage, transportation, lifting and testing frames to facilitate movement of the ROT systems and the modules and components to be replaced or installed. NOTE: Skids are used in combination with a skidding system.

ISO 13628-9

Smooth Bore A flexible pipe with an internal pressure sheath as the innermost layer.

API SPEC 17J

Smooth Bore Flexible pipe with an internal pressure sheath as the innermost layer.

ISO13628-2

SN curve Curve derived by plotting the cyclic stress and the corresponding number of fatigue cycles to failure for a given material or structure as a function of different stress levels.

API SPEC 17E

S-N curves Curves showing stress range versus number of cycles.

ISO13628-2

Sour Service Service conditions with an H 2 S con-tent exceeding the minimum specified by NACE MR 01-75 at the design pressure.

API SPEC 17J

Sour Service Service conditions with an H,S content exceeding the minimum specified by ANSVNACE MR0175 at the design pressure.

ISO13628-2

Spark test On-line process test to locate faults in the insulation or sheath covering.

API SPEC 17E

Splash zone The area where waves strike the support members of an offshore structure.

API RP 17G

Splice Joining together of component lengths or sub- components to achieve the required production length.

API SPEC 17E

Splice Joining together of component lengths or sub-components to achieve the required production length.

ISO 13628-5


38

Defined word

Definition

Used in

Split Gate Valve Valve where the gate is made of two or more pieces which are capable of being energized to seal both upstream and downstream at the same time.

ISO 13628-4

Stab subs Male half of sealing mechanism between component interfaces. Stab subs may use elastomeric or metal seals.

API RP 17G

Static Application Flexible pipes not exposed to significant cyclically varying loads or deflections during normal operations.

API SPEC 17J

Static Application Application in which the flexible pipes are not exposed to significant cyclically varying loads or deflections during normal operations.

ISO13628-2

Steep S Riser configuration-see Figure 4.

API RP 17B

Steep wave Riser configuration see Figure 4.

API RP 17B

Subsea BOP Blow-out preventer stack designed for use on subsea wellheads. Provides the capability to remotely shear and seal the wellhead bore. Also provides the capability to circulate from the surface through the wellhead.

API SPEC 17D

Subsea BOP Blow-out preventer stack designed for use on subsea wellheads. NOTE: This provides the capability to remotely shear and seal the wellhead bore and also provides the capability to circulate from the surface through the wellhead.

ISO 13628-4

Subsea buoy Concentrated buoyan system, generally consisting of steel or syntactic foam tanks, as used in S-type riser configurations (see 4.5.5). See also buoyancy module.

API RP 17B

Subsea Casing Hangers A device that supports a casing string in the wellhead at the mudline.

API SPEC 17D

Subsea Casing Hangers Device that supports a casing string in the wellhead at the mudline.

ISO 13628-4

Subsea Completion Equipment

Specialised tree and wellhead equipment used to complete a well below the surface of a body of water. May be made above a subsea wellhead or mudline suspension system. Equipment includes subsea wellhead, tree, tree appurtenances (e.g., tree cap, control pod), and associated subsea tree running tools.

API SPEC 17D


39

Defined word

Definition

Used in

Subsea Completion Equipment

Specialized tree and wellhead equipment used to complete a well below the surface of a body of water. NOTE: This may be made above a subsea wellhead or mudline suspension system. Equipment includes subsea wellhead, tree, tree appurtenances (e.g., tree cap, control pod), and associated subsea tree running tools.

ISO 13628-4

Subsea Intervention All work carried out subsea.

ISO 13628-9

Subsea Production Control System

Control system operating a subsea production system during production operations.

ISO 13628-6

Subsea termination interface Mechanism which forms the transition between the umbilical and the subsea termination or subsea umbilical distribution unit. The interface comprises typically an umbilical armor termination, bend stiffener, hose end fittings. Where the umbilical contains electric cables, electrical penetrator(s) and/or electrical connectors may also be incorporated.

API SPEC 17E

Subsea Termination Interface Mechanism which forms the transition between the umbilical and the subsea termination or subsea umbilical distribution unit. NOTE: The interface comprises typically an umbilical armour termination, bend stiffener, hose and/or tube end fittings. If the umbilical contains electric cables, electrical penetrator(s) and/or electrical connectors may also be incorporated.

ISO 13628-5

Subsea Tree A subsea tree is a Christmas tree placed below the ocean surface.

API RP 17C

Subsea Tree Christmas tree placed at the seabed.

ISO 13628-3

Subsea tree (tree) An assembly of valves and fittings attached to the uppermost connection of the subsea wellhead, used to control well production.

API RP 17G

Subsea umbilical distribution unit

Mechanism for mechanically, electrically and/or hydraulically independently connecting the umbilical independently to more than one subsea system. (In this context, hydraulically includes production system service fluids and produced fluids).

API SPEC 17E

Subsea Umbilical Distribution Unit

Mechanism for mechanically, electrically, optically and/or hydraulically connecting the umbilical independently to more than one subsea system. NOTE: In this context, hydraulically includes production system service fluids and produced fluid, control fluid and gas lift lines.

ISO 13628-5


40

Defined word

Definition

Used in

Subsea umbilical termination Mechanism for mechanically, electrically and/or hydraulically connecting an umbilical or jumper bundle to a subsea system. (In this context, hydraulically includes production system service fluids and produced fluid, control fluid, well service fluid and gas lift lines). voltage variations due to fault conditions and the sudden disconnection of large loads.

API SPEC 17E

Subsea Umbilical Termination

Mechanism for mechanically, electrically, optically and/or hydraulically connecting an umbilical or jumper bundle to a subsea system. NOTE: In this context, hydraulically includes production system service fluids and produced fluid, control fluid, well service fluid and gas lift lines.

ISO 13628-5

Subsea wellhead Wellhead assembly used during drilling and completion operations that has provisions to lock and seal to a subsea BOP stack and to the subsea tree.

API RP 17G

Subsea Wellhead Housing A pressure containing housing that provides a means for suspending and sealing the well casing strings installed during a floating drilling operation.

API SPEC 17D

Subsea Wellhead Housing Pressure-containing housing that provides a means for suspending and sealing the well casing strings installed during a floating drilling operation.

ISO 13628-4

Subsea Wirelind Coiled Tubing BOP

A subsea BOP that attaches to the top of a subsea tree to facilitate wireline or coiled tubing intervention.

API SPEC 17D

Subsea Wireline/coiled Tubing BOP

Subsea BOP that attaches to the top of a subsea tree to facilitate wireline or coiled tubing intervention.

ISO 13628-4

Surface Safety Valve (SSV)

Safety device that is located in the production bore of the well tubing above the wellhead (platform well), or at the point of subsea well production embarkation onto a platform, as defined in API RP 14H, and that will close upon loss of hydraulic pressure.

ISO 13628-6

Surface-Controlled Subsurface Safety Valve (SCSSV)

Safety device that is located in the production bore of the well tubing below the subsea wellhead, and that will close upon loss of hydraulic pressure, as defined in IS0 10432. NOTE: It’s function is to provide closure of the well flow in the event of catastrophic loss of the primary flow control safety equipment provided by the subsea tree assembly, or when commanded from the surface facility, e.g. in the event of an emergency shutdown Level O.

ISO 13628-6


41

Defined word

Definition

Used in

Swaging Method of attaching an end fitting to a hose by application of an axial force to the front of the end fitting. The fitting abutment is forced into a die of a smaller diameter. (See Appendix B, Figure B2).

API SPEC 17E

Sweet Service Service conditions which have an H 2 S content less than that specified by NACE MR 01-75 at the design pressure.

API SPEC 17J

Sweet Service Service conditions with an H2S content not exceeding the minimum specified by ANSVNACE MR0175 at the design pressure.

ISO13628-2

Swivel Flange (Type 17 s v) A flange assembly consisting of a central hub and a loose flange rim which is free to rotate about the-hub. The rotating flange rim has holes to accept bolts. The central hub has a sealing mechanism which will engage an API ring gasket. API type SV swivel flanges will mate with standard API type 17SS and 6BX flanges of the same size and pressure rating.

API SPEC 17D

Swivel Flange (type 17SV) Flange assembly consisting of a central hub and a loose flange rim which is free to rotate about the hub. NOTE: The rotating flange rim has holes to accept bolts. The central hub has a sealing mechanicm which will engage an IS0 ring gasket. IS0 type SV swivel flanges will mate with standard IS0 type 17SS and 68X flanges of the same size and pressure rating.

ISO 13628-4

System operating pressure Highest internal pressure at which a hose, attached end fittings/couplings and associated hydraulic connectors are intended to be used in service. It shall not exceed the maximum working pressure and is invariably determined by the performance characteristics of equipment connected to the umbilical system. cables, cabled together for flexibility and oversheathed and/ or armored for mechanical strength. (See Appendix E, Figures E1 and E2).

API SPEC 17E

Temporary Guidebase A structural device that provides a guide template for drilling the conductor hole and stabbing the conductor pipe.

API SPEC 17D

Tensile Armor Layer Structural layer with a lay angle typically between 20 degrees and 55 degrees, which consists of helically wound metallic wires, and is used to sustain, totally or partially, tensile loads and internal pressure. Tensile armor layers are typically counter wound in pairs.

API SPEC 17J


42

Defined word

Definition

Used in

Tensile Armour Layer Structural layer consisting of helically wound metallic wires, typically with a lay angle of between 20" and 55". NOTE: Tensile armour layers are typically counter-wound in pairs, and are used to sustain, totany or partially, tensile loads and internal pressure.

ISO13628-2

Tensile Strength Maximum tensile stress which a material is capable of sustaining; calculated from the maximum load during a tension test carried to rupture and the original cross-sectional area of the specimen.

ISO13628-2

Tensioning ring Attachment point on the C m 0 riser for the rig tensioning lines.

API RP 17G

Tensloner Mechanical device used to support or apply tension to a pipe during installation. Also called caterpillars.

API RP 17B

Termination Head Part of the PICS interfacing with the end of the sealine.

ISO 13628-9

TFL The abbreviation “TFL” stands for “Through Flowline.” It is a term applied to the system for the hydraulic transport and manipulation of special articulated tool strings.

API RP 17C

TFL Piping System All piping from the surface lubricator through the flowline and tubing to the deepest point in the well to which TFL tools can be circulated.

ISO 13628-3

Third Party An independent party who is qualified to witness, confirm, or approve, the referenced data, result, procedure, test or qualification.

API SPEC 17J

Third Party Independent party qualified to witness, confirm or approve the referenced data, result, procedure, test or qualification.

ISO13628-2

Through Flowline (TFL) Tools Tools designed to be transported and operated hydraulically, using a TFL system. The tools are pumped through the flowlines into the vertical bores of a subsea tree in order to perform routine service operations. Typical operations are: installation and retrieval of plugs, safety valves, and gas lift valves.

API SPEC 17D

Tieback Adapter A device used to provide the interface between mudline suspension equipment and subsea completion equipment.

API SPEC 17D

Tieback Adapter Device used to provide the interface between mudline suspension equipment and subsea completion equipment.

ISO 13628-4


43

Defined word

Definition

Used in

Time domain reflectometry Fault finding test to locate breaks in, or significant change in impedance in electrical conductors by pulse reflection techniques.

API SPEC 17E

Topside umbilical termination Enclosure located on a platform or floating production facility usually directly above or adjacent to the I/J-tube riser system to provide the means of connecting the umbilical functional lines to the top-side supply/return lines. floating production facility, or a land based station, and a fixed platform or a floating production facility, a subsea system providing control, data communication and transportation of production system service fluids and/or utility

API SPEC 17E SJEKKES!!

Torque balance Umbilical design which shows little or no propensity to rotate about its axis under the action of a tensile load.

API SPEC 17E

Torsional Balance This is a pipe characteristic that is achieved by designing the structural layers in the pipe, such that axial and pressure loads do not induce significant twist or torsional loads in the pipe.

API SPEC 17J

Torsional Balance Pipe characteristic that is achieved by designing the structural layers in the pipe so that axial and pressure loads do not induce significant twist or torsional loads in the pipe.

ISO13628-2

Town mains water Water from a town water supply, suitable for drinking. May also be referred to as potable water.

API SPEC 17E

Tree Cap A protective cover for the upper tree connection. May be used to contain pressure, and as an integral part in the tree control system.

API SPEC 17D

Tree Cap Protective cover for the upper tree connection NOTE: This may be used to contain pressure, and may be an integral part of the tree control system.

ISO 13628-4

Tree Connector A mechanism to join and seal a subsea tree to a subsea wellhead. May require diver assistance for installation, or be hydraulically actuated to permit remote operation.

API SPEC 17D

Tree Connector Mechanism to join and seal a subsea tree to a subsea wellhead. NOTE: This may require diver assistance for installation, or be hydraulically actuated to permit remote operation.

ISO 13628-4


44

Defined word

Definition

Used in

Tree Guide Frame Structural framework to provide guidance for installation of the subsea tree on the (crown) valves of a TFL tree, that allows the passage of (e.g., tree cap, control pod), and associated subsea tree subsea wellhead. Also provides support for tree flowlines and connection equipment, control pods, anodes, and counterbalance weights.

API SPEC 17D

Tree Guide Frame Structural framework to provide guidance with the PGB interface, for installation of the subsea tree on the subsea wellhead, and which also provides support for tree flowlines and connection equipment, control pods, anodes, and counterbalance weights.

ISO 13628-4

Tree Mandrel A tree upper connection profile, which allows remote connection of a tree running tool or tree cap.

API SPEC 17D

Tree running tool (TRT) Device used to run and land the tree on the subsea wellhead.

API RP 17G

Tree Side Outlet The outlet point at the surface of the tree block.

API SPEC 17D

Tree Side Outlet Point where a bore exits at the side of the tree block.

ISO 13628-4

Tree Upper Connection The uppermost fitting of a subsea tree which allows full bore access to the tree. Connection profile may be API or other proprietary types (see tree mandrel).

API SPEC 17D

Tree Upper Connection Uppermost fitting of a subsea tree which allows full bore access to the tree. NOTE: The connection profile may be API or other proprietary types (see re-entry spool).

ISO 13628-4

Triad Cable for the transmission of electric power or low frequency signals consisting of three insulated conductors twisted together in a symmetrical arrangement with a constant lay length. The cable may be screened to reduce cross-talk. Sometimes referred to as a triple. (See Appendix C, Figures C2 and C3).

API SPEC 17E

Tubing Pipe used in wells to conduct fluid from the well's producing formation into the subsea tree.

API RP 17G

Tubing hanger A mechanism used to support the downhole completion tubing string. It is also typically used to seal and contain the completion annulus from the environment.

API RP 17G

Tubing Hanger Spool or Tubing Head Spool

A device to allow suspension of a tubing hanger above a subsea wellhead.

API SPEC 17D


45

Defined word

Definition

Used in

Tubing hangerrunning tool (THRT)

Device used to run, land and lock the tubing hanger inside the wellhead, tubing spool, or subsea tree.

API RP 17G

Tubing-retrievable Safety Valve

Downhole safety valve run in the well on tubing. NOTE: It is normally surface-controlled and has an ID close to the size of the tubing bore, thereby providing an almost unrestricted bore.

ISO 13628-3

Tubing-Retrievable Safety Varve (TRSV)

Down-hole safety valve run in well on tubing; normally surface controlled and ID near tubing bore thereby providing near unrestricted bore.

API RP 17C

U Rated rms power-frequency voltage between two insulated conductors, for which cables and accessories are designed.

API SPEC 17E

Ultimate Strength Ultimate strength in this standard is defined in accordance with ASTM A370.

API SPEC 17J

Ultimate tensile strength Tensile force at which the umbilical parts.

API SPEC 17E

Um NB!

Maximum rms power-frequency voltage between each insulated conductor and screen or sheath, for which cables and accessories are designed. It is the highest voltage that can be sustained under normal operating conditions at any time and at any point in a system. It excludes temporary voltage variations due to fault conditions and the sudden disconnection of large loads.

API SPEC 17E

Umbilical A bundle of helically or sinusoidally wound small diameter chemical, hydraulic, and electrical conductors for power and control systems.

API RP 17B

Umbilical Group of electrical cables, hoses, either on their own or with combinations of each other (or optical fibre cables), cabled together for flexibility and oversheathed and/or armored for mechanical strength. (See Appendix E, Figures E1 and E2).

API SPEC 17E

Umbilical Group of electric cables, optical fibre cables, hoses, tubes, either on their own or with combinations of each other, cabled together for flexibility and oversheathed and/or armoured for mechanical strength.

ISO 13628-5

Umbilical

Group of electric cables, hoses or steel tubes, either on their own or in combination (or with optical fibre cables), cabled together for flexibility and oversheathed and/or armoured for mechanical strength.

ISO 13628-6

Umbilical Joint means of joining together two lengths of umbilical to effect a repair or to achieve the required production length

ISO 13628-5


46

Defined word

Definition

Used in

Umbilical system Umbilical complete with end terminations and other ancillary equipment (weak link, buoyancy collars, etc.), installed between a fixed platform, or a floating production facility, or a land based station, and a fixed platform or a floating production facility, a subsea system providing control, data communication and transportation of production system service fluids and/or utility supplies.

API SPEC 17E

Umbilical System Umbilical complete with end terminations and other ancillary equipment, installed between a fixed platform or a floating production facility or a land-based station, and a fixed platform, a floating production system or a subsea system, providing control, data communication and transportation of production system service fluids and/or utility supplies.

ISO 13628-5

Umbilicals Hose, tubing, piping, and/or electrical conductors which direct fluids and/or electrical current to or from subsea trees. Umbilical lines are typically used for control, monitoring, and/or injection functions.

API SPEC 17D

Umbilicals Hose, tubing, piping, and/or electrical conductors which direct fluids andor electrical current or signals to or from subsea trees. NOTE: Umbilical lines are typically used for control, monitoring, and/or injection functions.

ISO 13628-4

Unaged hose Recently manufactured hose which may or may not have been subjected to manufacturing pressure tests and has not been incorporated in an umbilical, or subject to damaging pressures.

API SPEC 17E

Unaged Representative Sample

Sample of umbilical, or its internal components, which has not previously been subjected to loadings, stresses and/or elevated temperature EXAMPLES: Electric cables, hoses, tubes and optical fibres.

ISO 13628-5

Unbonded Pipe The pipe construction consists of separate unbonded polymeric and metallic layers, which allows relative movement between layers.

API SPEC 17J

Unbonded Pipe Construction consisting of separate unbonded polymeric and metallic layers, which allows relative movement between layers.

ISO13628-2

Underwater Safety Valve (USV)

Safety valve assembly that is declared to be the USV as defined in API RP 14H and will close upon loss of hydraulic pressure.

ISO 13628-6


47

Defined word

Definition

Used in

Unpressurized Primary Structural Parts

Unpressurized primary structural parts are components that carry significant structural loads, but do not retain wellbore fluid.

API SPEC 17D

Uo Rated rms power-frequency voltage between each insulated conductor and screen or sheath, for which cables and accessories are designed.

API SPEC 17E

Upstream Direction of movement to the reservoir.

API SPEC 17D

Upstream Direction of movement to the reservoir.

ISO 13628-4

Upstream Direction towards the source of pressure or flow.

ISO 13628-6

Utility umbilical Umbilical for the provision of electric/hydraulic power, process fluids and data communications installed between two fixed platforms, a fixed platform and a floating facility, or a fixed platform/ floating facility and a land based station.

API SPEC 17E

Utility Umbilical

Umbilical for the provision of electric/hydraulic power, process fluids and data communications installed between two fixed platforms, a fixed platform and a floating facility, or a fixed platform/ floating facility and a land-based station.

ISO 13628-5

Valve Block An integral block containing two or more valves.

API SPEC 17D

Valve Block Integral block containing two or more valves.

ISO 13628-4

Virgin material Thermoplastic raw material as supplied by the material manufacturer. Virgin material does not comprise or contain re-granulated, recycled, reprocessed, reused or other similar material.

API SPEC 17E

Virgin material Virgin stock

New and unused material as supplied by the material manufacturer. NOTE: Virgin material or virgin stock does not comprise or contain re-granulated, recycled, reprocessed, reused or other similar material.

ISO 13628-5

Visual examination Examination of raw material, components, part completed components, finished and partfinished product for visible defects in material and workmanship.

API SPEC 17E

Visual Examination Examination of parts and equipment for visible defects in material and workmanship.

API SPEC 17J

Visual Examination Examination of parts and equipment for visible defects in material and workmanship.

ISO13628-2

Volumetric expansion Increase in internal volume of a hose when pressurised, expressed as a change in volume per unit length at a specified pressure.

API SPEC 17E


48

Defined word

Definition

Used in

Wall wash test The procedure for washing selected areas, such as the interior bulkheads, tank bottoms and sumps of cargo tanks, with an appropriate wash liquid, and, subsequently, testing the wash liquid for the presence of material which might contaminate cargo to be loaded.

API RP 17 A

Wave Zone The zone where water, particle velocities are derived from wave action.

API SPEC 17D

Weak link Device which is used to ensure that the umbilical parts at a specified load and location.

API SPEC 17E

Weak-link Device which is used to ensure that the umbilical parts or severs at a specified load and location.

ISO 13628-5

Wear Bushings A bore protector which also protects the casing hanger below it.

API SPEC 17D

Wear Bushings Bore protector which also protects the casing hanger below it.

ISO 13628-4

Wellhead Housing Pressure Boundary

The wellhead housing from the top of the wellhead to where the lowermost seal assembly seals.

API SPEC 17D

Wellhead Housing Pressure Boundary

Wellhead housing from the top of the wellhead to where the lowermost seal assembly seals.

ISO 13628-4

Will Indicates an intention of action.

API SPEC 17E

Wipe test The procedure of physically wiping any interior surface (bulkheads, steam coils, etc.) of the vessel`s tank with absorbent white rags. This procedure is used to test the wiped surfaces for possible colour contamination.

API RP 17 A

Workover Riser Equipment to provide a conduit from the tree upper connection to the surface and allows the passage of wireline tools. It must resist environmental wind, wave, and current forces (see completion riser).

API SPEC 17D

Workover Riser Equipment to provide a conduit from the tree upper connection to the surface and allows the passage of wireline tools. NOTE: It has to resist environmental wind, wave and current forces.

ISO 13628-4

Wye Spool The wye spool (wye block) is that piping section of a subsea tree where the loop joins the vertical tubing bore.

API RP 17C

Wye Spool Spool between the master and swab (crown) valves of a TFL tree, that allows the passage of TFL tools from the flowlines into the bores of the tree.

API SPEC 17D


49

Defined word

Definition

Used in

Wye Spool piping section of a subsea tree where the loop joins the vertical tubing bore

ISO 13628-3

Wye Spool Spool between the master and swab (crown) valves of a TFL tree, that allows the passage of TFL tools from the flowlines into the bores of the tree.

ISO 13628-4

Yield Strength Yield strength in this standard for steel materials is defined as 0.2 percent yield offset strength as per ASTM A370.

API SPEC 17J

Yield Strength Engineering stress at which, by convention, it is considered that plastic elongation has commenced. NOTE: It is specified in terms of either a specified deviation from a linear stress-strain relationship, or a specified total extension attained, or maximum or minimum engineering stresses measured during discontinuous yielding.

ISO13628-2


50

ABBREVIATIONS Acronym

Meaning

Used in

Lb Pound API SPEC 17E AC Alternating Current API SPEC 17E AC Alternating Current ISO 13628-5 ADS Atmospheric Diving System API SPEC 17D ADS Atmospheric Diving Suit API SPEC 17D ADS Atmospheric Diving Suit ISO 13628-1 ADS Atmospheric Diving System ISO 13628-4 AISC American Institute of Steel Construction API RP 17G AISI American Iron and Steel Institute API RP 17B AMV Annulus Master Valve API SPEC 17D ANSI American National Standards Institute API RP 17B ANSI American National Standards Institute API SPEC 17D ANSI American National Standards Institute API RP 17G ANSI American National Standards Institute ISO 13628-4 ANSI American National Standards Institute ISO 13628-6 API American Petroleum Institute ISO 13628-4 API American Petroleum Institute API RP 17B API American Petroleum Institute API SPEC 17D API American Petroleum Institute API RP 17G API American Petroleum Institute API SPEC 17J API American Petroleum Institute API SPEC 17K API American Petroleum Institute ISO 13628-1 API American Petroleum Institute ISO 13628-6 ASME American society of Mechanical Engineers API RP 17B ASME American Society of Mechaical Engineers API RP 17G ASME American Society of Mechanical Engineers API SPEC 17J ASME American Society of Mechanical Engineers API SPEC 17K ASME American Society of Mechanical Engineers ISO 13628-4 ASME American Society of Mechanical Engineers ISO 13628-6 ASNT American Society of Nondestructive Testing API SPEC 17J ASNT American Society of Nondestructive Testing API SPEC 17K ASNT American Society of Nondestructive Testing ISO 13628-2 ASTM American Society for Testing and Materials API RP 17B ASTM American Society for Testing and Materials API SPEC 17D ASTM American Society for Testing Materials API RP 17G ASTM American Society for Testing and Materials API SPEC 17J ASTM American Society for Testing and Materials API SPEC 17K ASTM American Society for Testing and Materials ISO 13628-6 ASV Annulus Swab Valve API SPEC 17D AVE Apparent Volumetric Expansion ISO 13628-5 AW Annulus Wing Valve API SPEC 17D AWS American Welding Society ISO 13628-6 AWS American Welding Society API SPEC 17D AWS American Welding Society ISO 13628-4 BER Bit Error Rate ISO 13628-6 BHP Bottom-Hole Pressure ISO 13628-3 BOP Blowout Preventor API SPEC 17D BOP Blow-out Preventer ISO 13628-1 BOP Blow-Out Preventer ISO 13628-4 BS British Standard API SPEC 17E BS British Standard API RP 17I BS&W Basic Sediment and Water ISO 13628-1


51

Acronym

Meaning

Used in

BUL Bulletin API RP 17G C/WO Completion/Workover API RP 17G CB Centre of Buoyancy ISO 13628-9 CC Cubic centimeters API SPEC 17D CCV Circulation Control Valve ISO 13628-3 CD Hydrodynamic Drag Coefficient API RP 17B CF Connection Function ISO 13628-9 CFU Colony-Forming Units ISO 13628-6 CG Centre of Gravity ISO 13628-9 CIGRE International Conference on Large Electrical Systems ISO 13628-6 CIU Chemical Injection Unit ISO 13628-6 CIV Chemical Injection Valve API SPEC 17D cm Hydrodynamic Inertia Coefficient API RP 17B CM Corrosion Resistant Alloys API SPEC 17D CM Centimeter API SPEC 17E CPL Control Path Length ISO 13628-6 CRA Corrosion-Resistant Alloy ISO 13628-1 CRA Corrosion-Resistant Alloys ISO 13628-4 CRC Cyclic Redundancy Check ISO 13628-6 CRM Corrosion Resistant Material API SPEC 17D CT Connection Tool ISO 13628-9 DC Direct Current API SPEC 17E DC Direct Current API RP 17I DC Direct Current ISO 13628-5 DCS Distributed Control System ISO 13628-6 DCV Directional Control Valve ISO 13628-1 DCV Directional Control Valve ISO 13628-6 Degrees F Degrees Fahrenheit API SPEC 17D DFI Design, Fabrication, Installation ISO 13628-1 DFO Documentation For Operation ISO 13628-1 DHPT Downhole Pressure and Temperature ISO 13628-6 DMA Deplasticizing Monitoring Assembly API RP 17B DnV Det norske Veritas API RP 17B DnV Det Norske Veritas API SPEC 17J DnV Det Norske Veritas API SPEC 17K DNV Det norske Veritas ISO 13628-2 DOF Degrees of Freedom API RP 17B DP Dynamic Positioning API RP 17I DPS Dynamic Positioning System API RP 17I DSC Differential Scanning Calorimetry API SPEC 17J DSC Differential Scanning Calorimetry API SPEC 17K DSC Differential Scanning Calorimetry ISO 13628-2 DWP Design Working Pressure ISO 13628-5 EDP Emergency Disconnect Package API RP 17G EDP Emergency Disconnect Package ISO 13628-1 EDP Emergency Disconnect Package ISO 13628-4 EFC European Federation of Corrosion ISO 13628-1 EPC Ethylene Propylene Co-polymer API SPEC 17E EPCM Ethylene Propylene Diene Rubber API SPEC 17E EPM/EPR Ethylene Propylene Rubber API SPEC 17E ESD Emergency Shutdown ISO 13628-1 ESD Emergency Shutdown ISO 13628-6 ESP Electrical Submersible Pump ISO 13628-1 EUE External Upset End ISO 13628-3 EXT Extended ISO 13628-6


52

Acronym

Meaning

Used in

FAT Factory Acceptance Test API RP 17B FAT Factory Acceptance Test API RP 17G FAT Factory Acceptance Test API RP 17I FAT Factory Acceptance Test API SPEC 17J FAT Factory Acceptance Test API SPEC 17K FAT Factory Acceptance Test ISO 13628-1 FAT Factory Acceptance Test ISO 13628-2 FAT Factory Acceptance Test ISO 13628-4 FAT Factory Acceptance Test ISO 13628-5 FAT Factory Acceptance Test ISO 13628-6 FAT Factory Acceptance Test ISO 13628-9 FEA Finite Element Analysis ISO 13628-4 FEM Finite Element Method API RP 17B FIR Full Indicated Reading API SPEC 17E FIR Full Indicated Reading ISO 13628-5 FMECA Failure Mode Effect and Criticality Analysis ISO 13628-6 FPS Floating Production System API RP 17B FPS Floating Production System API SPEC 17E FPSO Floating Production Storage and Offloading API RP 17B FPU Floating Production Unit ISO 13628-1 Ft Feet API SPEC 17E G Gram API SPEC 17E GA General Arrangement API RP 17B GA General Arrangement API SPEC 17J GA General Arrangement API SPEC 17K GOR Gas-Oil Ratio ISO 13628-1 GOT Glossary of Oilfield Terminology API SPEC 17D GRP Glassfiber Reinforced Plastic API RP 17B GRP Glass-fibre-Reinforced Plastic ISO 13628-1 ASNT American Society for Non destructive Testing API SPEC 17D HAT Highest Astronomical Tide level ISO 13628-1 HAZ Heat Affected Zone API SPEC 17J HAZ Heat-Affected Zone ISO 13628-2 HAZID Hazard Identification Study API RP 17B HAZOP Hazard and Operability Study API RP 17B HAZOP Hazards in Operation Analysis ISO 13628-1 HB Brinell Hardness ISO 13628-1 HDPE High Density Polyethylene API RP 17B HIC Hydrogen-induced Cracking API RP 17B HIC Hydrogen-induced Cracking API SPEC 17J HIC Hydrogen Induced Cracking API SPEC 17K HIC Hydrogen-induced Cracking ISO 13628-2 HIPPS High Integrity Pipeline Protection System ISO 13628-6 HIPPS High Integrity Pipeline Protection System ISO 13628-1 HP High Pressure ISO 13628-6 HPU Hydraulic Power Unit ISO 13628-6 HPU Hydraulic Power Unit ISO 13628-1 HPU Hydraulic Power Unit ISO 13628-9 HV Hardness on Vickers Scale API SPEC 17J HV Hardness on Vickers Scale API SPEC 17K HV Vickers Hardness ISO 13628-1 ICS Intervention Control System ISO 13628-9 ID Inside Diameter API RP 17B ID Inside diameter API SPEC 17D ID Internal Diameter API SPEC 17E


53

Acronym

Meaning

Used in

ID Internal Diameter API SPEC 17J ID Internal Diameter API SPEC 17K ID Internal Diameter ISO 13628-2 ID Inside Diameter ISO 13628-3 ID Inside Diameter ISO 13628-4 ID Inside Diameter ISO 13628-5 ID Internal Diameter ISO 13628-9 IEC International Electrotechnical Commission API SPEC 17E IEC International Electrotechnical Commission API RP 17I IEC International Electrotechnical Commission ISO 13628-6 IMR Inspection, Maintenance and Repair ISO 13628-1 in Inch API SPEC 17E IP Institute of Petroleum ISO 13628-6 IP ingress protection ISO 13628-9 IRJ Instrument Riser Joint ISO 13628-1 ISO International Standards Organization API RP 17B ISO International Organization for Standardization ISO 13628-1 ISO International Standards Organization API SPEC 17E ISO International Standards Organization API RP 17I ISO International Standards Organization API SPEC 17J ISO International Standards Organization API SPEC 17K J Joule API SPEC 17D JIC Joint Industries Council API SPEC 17E KN Kilonewton API SPEC 17E KP Kilometre Point ISO 13628-5 KV Kilovolt API SPEC 17E KV KiloVolts API RP 17I LAT Lowest Astronomical Tide API RP 17I LAT Lowest Astronomical Tide level ISO 13628-1 LAT Lowest Astronomical Tide ISO 13628-5 LCC Life Cycle Cost ISO 13628-9 LMRP Lower Marine Riser Package (for drilling) ISO 13628-1 LMV Lower Master Valve ISO 13628-1 LP Low Pressure ISO 13628-6 LRP Lower Riser Package (for workover) ISO 13628-1 LRP Lower Riser Package ISO 13628-4 LWRP Lower Workover Riser Package API SPEC 17D LWRP Lower Workover Riser Package API RP 17G LWRP Lower Workover Riser Package ISO 13628-4 m Meter API SPEC 17E Max Maximum API SPEC 17D MBR Minimum Bend Radius API RP 17B MBR Minimum Bend Radius API SPEC 17J MBR Minimum Bend Radius API SPEC 17K MBR Minimum Bend Radius ISO 13628-2 MCS Master Control Station ISO 13628-6 MEA Malt Extract Agar ISO 13628-6 MIL-STD Military Standard, U.S.A. API SPEC 17D MIL-STD Military Standard (USA) ISO 13628-4 MIL-STD Military Standard ISO 13628-6 Min Mínimum API SPEC 17D MIS Mudline Suspension System API SPEC 17D MIV Methanol Injection Valve ISO 13628-1 mm Millimeter API SPEC 17E MPa Mega Pascal SI Unit for Pressure API SPEC 17D


54

Acronym

Meaning

Used in

MPI Magnetic Particle Inspection API SPEC 17K MQC Multi Quick Connector ISO 13628-9 MRWP Maximum Rated Working Pressure ISO 13628-4 MSS Maufacturers Standardization Society of The Valve and Fittings

Industry API SPEC 17D

MSS Manufacturer's Standardization Society of the Valve and Fittings Industry

ISO 13628-4

MWL Mean Water Level API RP 17B n Permissible utilization factor as specified in Table 7 ISO 13628-2 NACE National Association of Corrosion Engineers API RP 17B NACE National Association of Corrosion Engineers API SPEC 17D NACE National Association of Corrosion Engineers API RP 17G NACE National Association of Corrosion Engineers API SPEC 17J NACE National Association of Corrosion Engineers API SPEC 17K NACE National Association of Corrosion Engineers ISO 13628-1 NACE National Association of Corrosion Engineers ISO 13628-4 NAS National Aerospace Standard API RP 17G NAS National Aerospace Standard Institute ISO 13628-6 NAS National Aerospace Standard Institute ISO 13628-9 NBR Natural Buna Rubber ISO 13628-6 NDE Non-Destructive Examination API RP 17B NDE Non-destructive examination API SPEC 17D NDE Nondestructive Examination API SPEC 17J NDE Non-Destructive Examination API SPEC 17K NDE Nondestructive Examination ISO 13628-1 NDE Non-Destructive Examination ISO 13628-2 NDE Non-Destructive Examination ISO 13628-5 NDT Non-Destructive Testing API RP 17G N-M Newton Meter API SPEC 17D NPD Norwegian Petroleum Directorate API RP 17B NPT National Pipe Thread ISO 13628-6 OCIMF Oil Companies International Marine Forum API RP 17B OCIMF Oil Companies International Marine Forum API SPEC 17K OD Outer Diameter API RP 17B OD Outside diameter API SPEC 17D OD Outside Diameter API SPEC 17E OD Outside Diameter ISO 13628-3 OD Outside Diameter ISO 13628-4 OD Outside Diameter ISO 13628-5 ODR Oscillating Disk Rheometer API SPEC 17K OEC Other End Connectors ISO 13628-4 OTDR Optical Time Domain Reflectometer API RP 17I OTDR Optical Time Domain Reflectometer ISO 13628-5 P&A Plug and Abandonment ISO 13628-1 PA Polyamide API RP 17B PA Polyamide API SPEC 17J PA Polyamide ISO 13628-2 PARCOMS Paris Commission ISO 13628-6 PC Picocoloumb API SPEC 17E PC PicoCoulombs API RP 17I PC Personal Computer ISO 13628-1 PC Personal Computer ISO 13628-6 Pc Combined probability of occurrence (yearly) ISO 13628-2 PCDA Plant Control and Data Acquisition system ISO 13628-1 PCS Production Control System ISO 13628-1


55

Acronym

Meaning

Used in

PE Polyethylene API RP 17B PE Polyethylene API SPEC 17E PE Polyethylene API SPEC 17J PE Polyethylene ISO 13628-2 PFI Pipe Fabrication Institute ISO 13628-4 PGB Permanent Guide Base API SPEC 17D PGB Permanent Guidebase API RP 17G PGB Permanent Guide Base ISO 13628-1 PGB Permanent Guide Base ISO 13628-4 PGB Permanent Guide Base ISO 13628-9 PICS Pull-In and Connection System ISO 13628-9 PIF Pull-In Function ISO 13628-9 PIT Pull-In Tool ISO 13628-9 PLC Programmable Logical Controller ISO 13628-1 PLEM Pipeline End Manifold API RP 17B PMR Per Manufacurer's Rating ISO 13628-4 PMV Production Master Valve ISO 13628-1 PP Polypropylene API RP 17B PR2 Performance Requirement Level Two API SPEC 17D PR2 Performance Requirement Level Two ISO 13628-4 PRE Pitting-Resistance Equivalent ISO 13628-1 PREP Preparation ISO 13628-6 PSD Process Shutdown ISO 13628-1 PSD Process Shutdown ISO 13628-6 PSI Pounds per square inch API SPEC 17D Psi Pond per square inch API SPEC 17E PSIA Pounds per square inch absolute API SPEC 17D PSIG Pounds per square inch gauge API SPEC 17D PSL Product Specification Level API SPEC 17D PSL Product Specification Level ISO 13628-4 PSV Production Swab Valve API SPEC 17D PSV Production Swab Valve ISO 13628-1 PTFE Polytetrafluoroethylene ISO 13628-6 PU Polyurethane API RP 17B EPU Electrical Power Unit ISO 13628-6 PVC Polyvinyl chloride API RP 17B PVC Polyvinylchloride API SPEC 17J PVC Polyvinylchloride ISO 13628-2 PVDF Polyvinylidene Fluoride API RP 17B PVDF Polyvinylidene Fluoride API SPEC 17J PVDF Polyvinylidene Fluoride ISO 13628-2 PMV Production Master Valve API SPEC 17D PWV Production Wing Valve API SPEC 17D PWV Production Wing Valve ISO 13628-1 QA Quality Assurance API SPEC 17E QA Quality Assurance ISO 13628-5 QA Quality Assurance ISO 13628-6 QC Quality Control API SPEC 17E QCDC Quick Connect Disconnect API RP 17B QDC Quick Disconnect API RP 17B RA0 Response Amplitude Operator ISO 13628-2 RA0 Response Amplitude Operators API RP 17B RAL “Reichsausschuss für Lieferbedingungen”. A colour system used

by German paint manufacturers ISO 13628-1

RAO Response Amplitude Operator API RP 17G


56

Acronym

Meaning

Used in

RAO Response Amplitude Operator API SPEC 17J RAO Response Amplitude Operator API SPEC 17K Rms Root Mean Square API SPEC 17E Rms Root Mean Square API RP 17I RMS Root Mean Square ISO 13628-4 ROT Remotely Operated Tool ISO 13628-1 ROT Remotely Operated Tool ISO 13628-4 ROT Remotely Operated Tool ISO 13628-9 ROV Remotely Operated Vehicle API SPEC 17D ROV Remotely Operated Vehicle API RP 17I ROV Remotely Operated Vehicle ISO 13628-1 ROV Remotely Operated Vehicle ISO 13628-4 ROV Remotely Operated Vehicle ISO 13628-5 ROV Remotely Operated Vehicle ISO 13628-6 ROV Remotely Operated Vehicle ISO 13628-9 RP Recommended Practice API RP 17G SAE Society of Automotive Engineers API SPEC 17E SAE Society of Automotive Engineers API RP 17G SAFOP Safety in Operation Analysis ISO 13628-1 SAS Safety and Automation System ISO 13628-1 Sb Bending Stress API SPEC 17D Sb Bending Stress ISO 13628-4 SCM Subsea Control Module ISO 13628-1 SCM Subsea Control Module ISO 13628-6 SCSSV Surface Controlled Subsurface Safety Valve API SPEC 17D SCSSV Surface Controlled Subsurface Safety Valve API RP 17G SCSSV Surface-Controlled Subsurface Safety Valve ISO 13628-1 SCSSV Surface-Controlled Subsurface Safety Valve ISO 13628-3 SCSSV Surface-Controlled Subsurface Safety Valve ISO 13628-4 SCSSV Surface-Controlled Subsurface Safety Valve ISO 13628-6 SDC Side Door Choke ISO 13628-3 SEM Subsea Electronic Module ISO 13628-1 SEM Subsea Electronic Module ISO 13628-6 SIT System Intergration Test API RP 17G Sm Membrane Stress API SPEC 17D Sm Membrane Stress ISO 13628-4 SMYS Specified Minimum Yield Stress ISO 13628-5 S-N Curves Showing Stress Range vs. Number of Cycles API SPEC 17J S-N Curves showing stress range vs. number of cycles API SPEC 17K S-N Stress Range - Number of Cycles ISO 13628-2 SPEC Specification API RP 17G SPS Subsea Production System ISO 13628-9 SSC Sulfide Stress Cracking API RP 17B SSC Sulphide Stress Cracking API SPEC 17J SSC Sulphide Stress Cracking API SPEC 17K SSC Sulfide Stress Cracking ISO 13628-2 SSIV Subsea Isolation Valve API SPEC 17E SSV Surface Safety Valve ISO 13628-6 STD Standard ISO 13628-6 SVLN Safety Valve Landing Nipple ISO 13628-3 SWL Safe Working Load ISO 13628-4 SWL Safe Working Load ISO 13628-9 Sy Yield Stress ISO 13628-4 Syld Yield Stress API SPEC 17D TAN Titrated Acid Number API RP 17B


57

Acronym

Meaning

Used in

TAN Titrated Acid Number API SPEC 17E TAN Titrated Acid Number API SPEC 17J TAN Titrated Acid Number API SPEC 17K TAN Titrated Acid Number ISO 13628-2 TAN Titrated Acid Number ISO 13628-5 TAN Total Acid Number ISO 13628-6 TBN Total Base Number ISO 13628-6 TDR Time Domain Reflectometer API RP 17I Temp Temperature API SPEC 17D TFL Through Flowline API RP 17B TFL Through Flowline Tools API SPEC 17D TFL Through Flowline API RP 17G TFL Through-Flowline API SPEC 17J TFL Through Flowline API SPEC 17K TFL Through-Flowline System ISO 13628-1 TFL Through Flowline ISO 13628-2 TFL Through Flowline ISO 13628-3 TFL Through-Flowline ISO 13628-4 TGB Temporary Guide Base API SPEC 17D TGB Temporary Guide Base ISO 13628-4 THPU Test Hydraulic Power Unit ISO 13628-6 THRT Tubing Hanger Running Tool API RP 17G THRT Tubing Hanger Running Tool ISO 13628-1 TMD Total Measured Depth ISO 13628-3 TRSV Tubing-Retrievable Safety Valve ISO 13628-3 TRT Tree Running Tool API RP 17G TRT Tree Running Tool ISO 13628-1 TSA Tryptone Soya Agar ISO 13628-6 TVD True Vertical Depth ISO 13628-3 TVE True Volumetric Expansion ISO 13628-5 UNS Unified National Standard or Unified Numbering System API SPEC 17J UNS Unified Numbering System ISO 13628-1 UNS(1) Unified National Standard API SPEC 17K UNS(2) Unified Numbering System API SPEC 17K UPS Uninterruptable Power Supply ISO 13628-1 UPS Uninterruptible Power Supply ISO 13628-6 USV Underwater Safety Valve ISO 13628-6 UTM Universal Transversal Mercator ISO 13628-1 UV Ultraviolet API RP 17B UV Ultraviolet API SPEC 17J UV Ultraviolet API SPEC 17K UV UltraViolet ISO 13628-2 UV Ultra-Violet ISO 13628-5 V Volts API RP 17I VAC Volts Alternating Current ISO 13628-6 VDU Visual Display Unit ISO 13628-1 VDU Video Display Unit ISO 13628-6 VIV Vortex Induced Vibraton API RP 17B WCT-BOP Wireline/Coil Tubing Blowout Preventor API SPEC 17D WCT-BOP Wireline Coiled Tubing BOP API RP 17G WCT-BOP WirelineCoil Tubing Blow-Out Preventer ISO 13628-4 WHP Wellhead Pressure ISO 13628-1 WOCS Workover Control System ISO 13628-9 WPQR Welding Procedure Qualification Record ISO 13628-2 WPS Welding Procedure Specification ISO 13628-2


58

Acronym

Meaning

Used in

WT Wall Thickness ISO 13628-5 XLPE Cross-linked Polyethylene API RP 17B XOV Crossover Valve API SPEC 17D XT Tree ISO 13628-1 XT Tree ISO 13628-4 XTRT Tree Running Tool ISO 13628-1 σe Equivalent stress (Von Mises or Tresca) ISO 13628-2 σt Tensile Hoop Stress ISO 13628-2 σu Material Ultimate Stress API RP 17B σu Material Ultimate Stress API SPEC 17J σu Material Ultimate Stress API SPEC 17K σu Material Tensile Strength ISO 13628-2 σY Material Yield Stress API RP 17B σy Material Yield Stress API SPEC 17J σy Material Yield Stress API SPEC 17K σy Material Yield Strength ISO 13628-2

Abbreviations and Definitions

Documents

api monogram api spec

annulus api spec

armor api spec

j bellmouth api spec

e bend limiter api spec

ancillary equipment

basket api rp

bend stiffeners