Jolliet project proves flexible pipe for deepwater development
- Conoco Inc., Houston, TX (US)
- Coflexip and Services Inc., Houston, TX (US)
This paper reports on the flexible-pipe export system for Conoco Inc.'s Jolliet project in the Gulf of Mexico which is the deepest flexible pipe and riser ever installed. The project saw, as well, the first use of flexible pipe risers with a tension-leg well platform (TLWP) or a tension-leg platform (TLP). Also, during the installation, large-diameter flexible pipe was abandoned in deepwater under threat of an approaching hurricane. The pipe was later retrieved and installation completed. The deepwater pipeline system on Conoco's Jolliet field in the Gulf of Mexico consists of one process-gas line and one oil-water emulsion line. Flexible pipe was used for a large portion of both lines. The flexible pipe was installed from the TLWP to approximately 6 miles away where subsea connections were made to conventional rigid steel pipelines. These flexible pipes were installed in water depths ranging from 930 to 1760 ft in rough sea bed conditions. Flexible pipe risers were suspended from the TLWP in a simple quaternary configuration.
- OSTI ID:
- 5603379
- Journal Information:
- Oil and Gas Journal; (United States), Journal Name: Oil and Gas Journal; (United States) Vol. 89:45; ISSN OIGJA; ISSN 0030-1388
- Country of Publication:
- United States
- Language:
- English
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