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U.S. Department of Energy
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The design and installation of dynamic risers and umbilicals for the Atlantic Frontiers

Conference ·
OSTI ID:433915
The Foinaven riser and umbilical system comprises 10 flexible pipes and 2 umbilicals and provides production, test, gas injection, water injection and control for two drilling centers. The design pressure for the system is 3,689 psi (254 bar g). The configuration of the risers is a ``pliant wave`` which is anchored to a gravity base structure by tethers and has buoyancy modules distributed along the lower end. The system is designed such that it can be released from the FPSO in extreme emergency conditions. The paper describes the design conditions, vessel interface, buoyancy modules, tether clamps and tether, flexible pipe design, umbilical design, schedules, subsea alliance, and installation.
OSTI ID:
433915
Report Number(s):
CONF-960525--
Country of Publication:
United States
Language:
English

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