TDW+SmartPlug+Brochure

www.tdwoffshore.com

The TDW Offshore Services’ SmartPlug™ tool is designed to isolate a section of pipeline while it is at operating pressure. This enables pipeline repair without reducing pipeline pressure or bleeding down the entire pipeline system.

ADvAnTAgeSThe primary advantage of using the SmartPlug™ tool as a method of pipeline isolation is the ability to minimise production down time. The following advantages have resulted in savings for our customers:

• No flaring of gas or displacement of pipeline contents• Production continued during pipeline repairs• No emissions of gas or hydrocarbon vapours to the atmosphere• No danger of accidentally flooding offshore pipelines during construction • No hole or future leak path is left at the isolation location• No time or money spent on de-commissioning (bleeding down) and re-commissioning (refilling and re-pressurizing) pipelines • No need to dispose of hydrates, chemicals and contaminated water• Isolates short sections of pipeline anywhere in the pipeline system

SmartPlug™ System

Graphic representation of the SmartPlug™ system. The tool is controlled from top-side by laptop computer

communicating with a subsea antenna by acoustic signals.

SmartPlug™ SySTem FeATureS

HigHly PiggAble – The SmartPlug™ is bi-directionally piggable through flexible pipelines. It can isolate any pipeline medium, including gas, crude oil, distillates, treated or untreated water, glycol, diesel, etc. The SmartPlug™ system is module-based and can be configured for project needs.

DOuble blOck - The standard SmartPlug™ system tool consists of two independent plug modules, each of which is activated by the onboard micro-hydraulic activation system. Each module is independently capable of isolating the full pipeline pressure, thus providing double-block isolation.

SAFe, FAST & ecOnOmicAlThe SmartPlug™ tool enables the completion of pipeline maintenance with unprecedented safety, speed, time, and cost savings. TDW Offshore Services currently maintains SmartPlug™ tools for all pipeline diameters between 10” and 42”. Other sizes are available on request.

SAFeTy FeATureSThe SmartPlug™ system is designed to be self-locked in the set position, as long as there is delta pressure across the tool. This means that the higher the pressure, the harder the plug seals, regardless of the status of the communication system. The SmartPlug™ system also includes a redundant unsetting systems, so that if all communication fails, the plug can still be unset and recovered. The SmartPlug™ tool is designed to achieve no leakage. Each tool is approved and certified by Det Norske Veritas (DnV).

SmartPlug™ OPerATiOn, TrAcking AnD cOmmunicATiOnThe SmartPlug™ tool is activated/de-activated, tracked and monitored by a topside laptop computer through the use of TDW Offshore’s proprietary control and communication system. The laptop communicates with the SmartPlug™ system by sending signals to an ELF antenna placed in the vicinity of the isolation location. The ELF antenna provides real time two-way, through-wall data communication with the system. This allows the operator to send commands and to receive confirmation of plug conditions and pipeline pressures.

The SmartPlug™ tool has an onboard SmartTrack™ system for tracking and accurate positioning.

Acoustic antenna

ELF (Extremely Low Frequency) antennaproviding through-wall communication with

the SmartPlug™ system.

SmartPlug™ tool’s setting sequence

Graphic representation of a riser replacement project which does

not interrupt downstream production

Graphic representation of valvereplacement project which does not

interrupt production flow.

PrOjecT APPlicATiOnS

PiPeline vAlve rePlAcemenTS Or rePAirSUse of the SmartPlug™ tool allows the replacement of topside valves without reducing pipeline pressure or affecting the production of downstream platforms.

riSer rePlAcemenT Or rePAirS (including flexible risers) The SmartPlug™ tool can isolate the riser from the rest of the pipeline and allow pipelines with multiple downstream platforms to remain in production while risers are replaced or repaired.

PreSSure TeSTing AnD leAk DeTecTiOn OF riSerS Or rePAireD PiPelineSThe use of a three-plug module SmartPlug™ train, with one-plug module in the reverse direction to isolate thetest pressure, enables the operator to pressure test the repaired sections of the pipeline or riser as soon as the construction is completed.

miDline PiPeline rePAir AnD Tie-inS The use of two SmartPlug™ tools in a train allows the isolation of a specific section of a pipeline for repairs, replacement or tie-ins. Pipeline intervention can be completed without the displacement of pipeline content and without interrupting production in other pipelines connected to the transport system.

Production flow

at 72

bar

42” Gas pipeline

26” Gas line30” Oil line

~250 km

SmartPlug™ tool’s setting sequence

Graphic representation of the midlinereplacement on a pipeline at operatingpressure. Each end of the cut pipeline was brought to the surface to weld on a flangewith the pipeline isolated at 750 psi

Graphic representation of a riser hydro-testwith the line at full operating pressure after

the replacement of an ESD valve.

Dry Tie-inS OF riSerS Or PiPelineS The SmartPlug™ tool can be set at the end of a dry pipeline before laying it down on the sea floor. This saves days of pipelay vessel use, and allows dry tie-ins using less expensive vessels to pick up the pipeline from the sea floor at a later date.

The SmartPlug™ system can be used as a method of pipeline flood prevention during the handover of the pipeline from the lay vessel to the platform, should a wet buckle occur. The SmartPlug™ system can also be used for flood prevention during lay down, lifting, or while placing the riser in the porch.

PlATFOrm AbAnDOnmenT AnD byPASSThe SmartPlug™ system can be used to plug both import and export lines of a platform so that the lines can be cut and tied together for a subsea bypass, or connected to other lines for rerouting. The cut pipelines can also be capped or blinded for future construction or abandonment.

The SmartPlug™ system enables the work to be completed without shutting down other platforms connected to the pipeline system. The use of the SmartPlug™ system eliminates the need to find and operate subsea valves for isolation.

Replaced valve

71.6 km

10.3 km

24

” Gas pipeline

Gas at 70 bar

Water at 1

35

bar

www.tdwoffshore.com

graphic representation of the Smartlay™ flood prevention system

jumPer rePlAcemenTThe SmartPlug™ tool can be pigged from the FPSO or platform to isolate the jumper. This allows jumper replacement without wetting the system and without replacing the oil or gas, thus preventing costly and time-consuming commissioning operations.

Flex jOinT iSOlATiOn FOr rePAirSmartPlug™ tools are used to prevent the flooding of SCRs while lifting the pipeline to the surface or during underwater construction. The SmartPlug™ system allows production to continue downstream if the SCR is part of a wider transportation system.

Tie-in OF DeeP-WATer FlOW lineS AnD PiPelineSDeep-water flow lines and pipelines often have a preinstalled tee to allow for tie-in of future wells or pipelines. One SmartPlug™ tool on each side of the tee allows quick and safe performance of such tie-ins. The SmartPlug™ system allows the tie-in to be performed without shutting down the flow line/pipeline, without flooding, and without environmental impact or clean-up.

FlOOD PrevenTiOn During DeePWATer PiPelAyThe SmartLay™ system is towed inside the pipeline above the sag bend to protect the lay barge in the event of a wet buckle. The SmartLay™ system can also be installed below the sag bend to protect the laid pipeline from flooding.

The SmartLay™ system is fitted with sensors to detect the ingress of water, or pressure build-up inside the pipeline. When such conditions are detected, the SmartLay™ plug activates and isolates the pipeline. The SmartLay™ system can be activated and deactivated with an ROV fitted by TDW Offshore’s electromagnetic communication system.

AD

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TDW Offshore Serviceswww.tdwoffshore.com

www.tdwoffshore.com

TDW Offshore Services – Smart Pipeline Solutions™ TDW Offshore is the worldwide leader in tetherless, through-wall remote-controlled pipeline pressure isolation services. We minimise your pipeline downtime through fast-track delivery of project-specific pigging, repair and handling tools, both onshore and offshore.

TDW Offshore has a large in-house engineering department, allowing TDW Offshore to meet customer needs. TDW Offshore is certified to ISO 9001:2000 Quality Management System.

TDW Offshore Services is a subsidiary of T.D. Williamson, Inc. (TDW). TDW, the world’s most recognized name in pipeline equipment and services, delivers safe integrity solutions for onshore and offshore applications. TDW’s experts provide hot tapping and plugging, pipeline cleaning, geometry and MFL inspection, pigging and non-tethered plugging pig technology services for any pressurized pipeline system, anywhere in the world.

TDW Offshore offers a broad range of products and services, such as:

• Pipeline Pressure isolations

• Pipeline Pigging

• Pipeline Flood Prevention

• Pipeline construction

• Pipeline repair

TDW Offshore Services ASFabrikkveien 15,

P.O.Box 8011N-4068 Stavanger, NorwayPhone: +47 51 44 32 40

Fax: +47 51 44 32 41

TDW Offshore Services, l.l.c.4220 World Houston Parkway, Suite 100

Houston, TX 77032 ,USA Phone: +1 832 448 7200

Fax: +1 832 448 7240

T.D. WilliamsonAsia Pacific Pte Ltd

4 Tech Park Cescent, 3rd FloorSingapore 638128

Phone: +65 6364 8520Fax: +65 6364 8521

For sales information:

TDW Offshore Servicesc/o GASOS

P.O. Box 203, 13th Floor,Bin Homoodah Building,

Sh. Khalifa StreetAbu Dhabi, UAE

Phone: +971 50 6155146