Subsea STP Buoy Mooring Subsea Australasia 2010 ... stp buoy mooring... · Subsea STP Buoy Mooring Subsea Australasia 2010 PerthSubsea Australasia 2010, Perth Ben Crouch, Sales Engineer,

Subsea STP Buoy Mooring

Subsea Australasia 2010 PerthSubsea Australasia 2010, PerthBen Crouch, Sales Engineer, First Subsea Ltd

‘Always Part of the Solution’

Presentation Overview First Subsea Ball and Taper Technology Ball and Taper Technology Subsea Mooring Connector Spar, FPU and FPSO Mooring STP Buoy Mooring Buoy Tow-Out and Connection Buoy Disconnection and Retrieval Buoy Disconnection and Retrieval Peregrino case study Future STP Buoy Mooring Summary

First Subsea Formerly BSW Ltd …

Established in 1994 Established in 1994

MBI in September 2001

Patented ‘Ball & Taper’ Technology

Innovative Design & Engineering

Extensive Oil and Gas Experience

Employing 40 People in NW England

Certified QMS to ISO9001:2000

R t ti W ld id Representative Worldwide

Australian representative: Brian Arnold, Energy Agencies.Arnold, Energy Agencies.

Ball and Taper Principlep p Mechanical Mechanism

Friction / Wedge Locking Friction / Wedge Locking

Individual Multi-Point Grip

Grip Elements in Compressionp p

Grip is Proportional to Load

Self Aligning, Self Activating

No Release Under Load

Fully Scaleable Design: Mooring C t Di l B d StiffConnector, Diverless Bend Stiffener Connector, Pipeline Recovery Tool, Autoswage Connector

Subsea Mooring Connector g Two-part Ballgrab SMC: male and female

tconnectors

Range of connectors to meet loading requirement: Series I, II & III

Loads up to 2000Te MBL supplied so farp pp

Mooring line media independent: chain, spiral wire and fibre ropespiral wire and fibre rope

Shallow water and deepwater deployment

Subsea Mooring Connectorg Over 250 Ballgrab subsea mooring

connectors deployed around theconnectors deployed around the world.

Ballgrab SMC: Simpler and safer connection Simpler and safer connection Greater operational flexibility Easier shallow and deepwater

installations Key projects: Vincent STP buoy, Kikeh SPAR,Vincent STP buoy, Kikeh SPAR,

Perdido Spar, Cascade Chinook.

Spar, FPU, FPSO mooring p , , g Pre-install female connector on seabed

connected to pile and ground chain p g Suction pile - Docking porch with

female connector Driven pile – Mud mat with female p

connector Male connector lowered from surface

vesselconnected to mooring line Male connector stabbed vertically into

female connector to secure mooring line connectionM l t b di d Male connector can be disengaged enabling production platform to be moved, if necessary.

STP Buoy Mooring and Connectiony g

Reverse implementation to surface l f iplatform mooring: male preinstalled seabed anchor, female preinstalled on buoy with uni-

j i t tjoint arrangement Male installed with suction pile, held

above seabed with midline buoyancy elementelement

Buoy lowered into position and male connector pushed into female connector with ROV – diverless connectionwith ROV diverless connection

Female connector typically held at 45 degrees.

Buoy Tow‐out Simplery p• Female connector pre-installed on

side of buoy• Avoids need for mooring lines pre-

connected to buoyconnected to buoy• Easier buoy lift from quayside to

water• Enables safer tow out• Fewer tow out boats needed• Allows final mooring line• Allows final mooring line

connections without the need for divers.

Buoy Disconnection and RetrievalBuoy Disconnection and Retrieval

FPSO disconnects buoy and moves off-station to avoid adverse weatherto avoid adverse weather

Integrated ball and taper connection within buoy allows easier retrieval

Female receptacle within top of buoy Female receptacle within top of buoy Buoy retrieved into FPSO with Ballgrab male

connector on retrieval wire Doppler TV used to position male connectorDoppler TV used to position male connector

and assist female connection On connection, buoy winched into moonpool Alternative to floating ropes padeyes andAlternative to floating ropes, padeyes and

shackles Easier retrieval of buoy without ROV / divers Provides simple, remotely operated buoyProvides simple, remotely operated buoy

abandonment and retrieval system.

Future STP buoy mooringy g Subsea STP buoy mooring – a proven

methodologymethodology Focus on meeting deepwater / ultra

deepwater mooring challenges Drive for ‘Lean Installation’ Key developments in mooring line

make-up and deployment Fibre rope connector technology Mooring line seabed pre-

deploymentdeployment.

Mooring Line Developmentsg p Deepwater mooring line deployment –

complex and time consuming Need dedicated deepwater mooring lines Longer ropes with fewer connections Easier and quicker deployment and recoveryy y Focus on ‘Lean Installation’ ‘LankoFirst’ fibre mooring line connector

Smaller, lighter, stronger and moreSmaller, lighter, stronger and more efficient than existing link designs

Easier make-up and slimmer rope splice construction

Flexible, safer and easier offshore assembly, running and retrieval.

Summaryy Subsea STP buoy mooring simpler with

Ballgrab SMCsBallgrab SMCs Consistent with ‘Lean Installation’ Simpler buoy lift and tow-out Easier buoy retrieval Further developments in mooring line

connectors, and fibre rope sand barriers co ecto s, a d b e ope sa d ba e soffer greater STP buoy mooring flexibility.

‘The innovator of engineering excellence specializing inexcellence, specializing in 

connection and mooring solutions’

Engineering House, Lune Industrial Estate, New Quay Road, Lancaster, LA1 5QP, UK.UK T : +44 (0)1524 387 777 F : +44 (0)1524 387 777 E : [email protected]

11757 Katy Freeway, Suite 1300, Houston, Texas 77079, USA.T : +1 832 448 1240 F : +1 832 448 1241 E : sales@firstsubsea com

UK

US T : +1 832 448 1240 F : +1 832 448 1241 E : [email protected]