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SubseaTie-in Systems

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Vertical Tie-in assisted by V-CAT

Subsea Tie-in Systems

Subsea owlines are used for the transportation of crude oil and gas from

subsea wells, manifolds, off-shore process facilities, loading buoys, S2B (subseato beach), as well as re-injection of water and gas into the reservoir. Achievingsuccessful tie-in and connection of subsea owlines is a vital part of a subseaeld development.

Subsea fields are developed using a variety of tie-insolutions. Over the past decade, FMC Technologieshas developed a complete range of horizontal and

vertical tie-in systems and associated connectiontools used for the tie-in of flowlines, umbilicals andjumper spools sizes 2 - 36 and for single and multi-bore application. FMCs horizontal and vertical tie-insystems have been extensively installed in many ofthe deepest, highest pressure and largest diametersubsea applications around the world.

Vertical Tie-in SystemsVertical connections are installed directly onto thereceiving hub in one operation during tie-in. Since theVertical Connection System does not require a pull-incapability, it simplifies the tool functions, provides atime efficient tie-in operation and reduce the length ofRigid Spools.

Stroking and connection is carried out by the theConnector itself, or by the ROV operated Connector

Actuation Tool (CAT) System.

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Stabcon Tie-in system

Rovcon Tie-in system

Horizontal Tie-in Systems

Horizontal Tie-in may be used for both first-end and second-end tie-in of both flowlines,

umbilicals and Jumper spools. The terminationhead is hauled in to the Tie-in point by useof a subsea winch. Horizontal Tie-in maybe made up by Clamp Connectors operatedfrom a Tie-in tool, by integrated hydraulicconnectors operated through the ROV, or bynon-hydraulic collet connectors with assistancefrom a Connector Actuation Tool (CAT) andROV. Horizontal connections leave the flowline/umbilical in a straight line, and is easy to protect

if overtrawling from fishermen should occur.

FMC provides a series of Horizontal Tie-in systems:

The STABCON system is designed to perform a series of tie-ins and connections withoutreturning the CAT (ROV-carried Connector Actuating Tool) to the surface.

The FLYCON is designed to install and connect hydraulic and electrical umbilicals (jumpers)

between subsea modules and structures by use of a standard work class ROV. Jumpers arelaunched to the location in tailor-made baskets. Various configurations of hydraulic jumpersand flying leads can be supplied to suit a variety of applications.

The UTIS tool carries the clamp-connector to the tie-in area, and lands on the inboard hub.The ROV attaches the pull-in rope to the termination head, pre-laid some distance from the

structure, and the termination head with theoutboard hub is then pulled in, and the clampis made up. UTIS may also connect prelaid rigidspools.

The ROVCON system is designed to perform aseries of tie-ins and connections of pre-laid lineswithout returning to the surface. ROVCONis attached underneath a work class ROV. Thetie-in skid package performs tie-in using twowinches. Stroking cylinders are used for finalpull-in and closing of the connector.

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Horizontal Tie-in Systems

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Vertical Tie-in Systems

www.fmctechnologies.com/sub

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Tie-in Structures& Modules

Each tie-in and connection point requiressome form of subsea base structure. Thisbase may be on a single well structure, a

template, a manifold, or other individual

structure such as a Riser Base, a PipelineEnd Manifold (PLEM), a Pipeline EndTermination (PLET) or an In-line Tee.

These individual structures may also containmanifold equipment such as isolation valves,gas-lift valves, wyes, pig-launchers andsensors. FMC manufactures a wide range oftie-in structures and modules tailored to meet

the clients specific requirements and based

upon standard interfaces and components.

12 Multibore Collet Connector

Connection Products

FMC Technologies provides a series of standardsingle and multi-bore connectors from 2 to 36.Connectors are used to make strong pressure-

tight connections designed to withstand highpressure, temperature, bending and torsionalload conditions. The connector may also beexposed to high external pressure as a result ofdeep water depths.

Collet connectors consist of collet-style fingerdesign which firmly locks around a mating hub.Collet connectors are used for both verticaland horizontal jumper spool connections and

are available in both integral hydraulic andmechanical (with separate actuation tool)configurations.

Clamp connectors consist of a two piecesegmented clamp design and are particularlywell suited for larger bore, lower pressurehorizontal connection applications.

30 Clamp Connector

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Spool piece with Vertical Connectors

ROVCON 132 Number of connections

UTIS 199 Number of connections

STABCON 359 Number of connections

VECON 50 Number of connections

Total number of flowline/umbilical Tie-ins after 1997is 740

Standardization& Flexibility

Flowlines and umbilicals require strong,pressure-tight connections at each endwhich also allow for easy intervention and/or replacement as field architecturechanges occur over the life of the field.To provide maximum field architectureflexibility, FMC offers tie-in system designbased on custom configuration of standardproducts and interfaces to meet clientsspecific requirements.

Global Sucess Stories

Jumper/Spool Pieces

Custom jumpers/spool pieces are used toconnect manifold systems to wells, sledsto wells and/or manifolds to sleds.

FMC Technologies offers rigid and flexiblejumper configurations from 4 to 18 inches indiameter and lengths exceeding 150 feet (50

meters).

Tie-in connections are either vertical orhorizontal based on system selection. Designedfor water depths exceeding 10,000 feet (3,000meters) and working pressures to 15,000 psi,all jumpers or spool pieces are installed usingguideline-less techniques. Jumpers or spoolpieces are installed after onshore constructionand testing to mate to previously installed

equipment, based on subsea metrology data.

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FMCTechnologiesAugust2006-3DillustrationsbyIndustriellDokumentasjon-printbyPrinfo

Vanberg

FMC Technologies1777 Gears RoadHouston TX 77067

USAPhone: +1 281 591 4000www.fmctechnologies.com/subsea

FMC TechnologiesP.O. Box 1012NO-3601 Kongsberg

NorwayPhone: +47 3228 6700