Design, techniques bring big line on to congested shore
- Bechtel Ltd., London (United Kingdom)
The shore approach for one of the world`s largest offshore gas pipelines was successfully achieved in an area congested with other pipelines and mooring berths. The 46-in. line from Umm Shaif field to Das Island in the Arabian Gulf off Abu Dhabi was designed in 1992 and installed in 1993. Trenching, pull-in, and safe stabilization of the line`s shore approach used submersible tracked trench-cutters and suction dredger; a lay-barge winch pulling around a shoreline pulley-block and back to the barge ramp; and large saddlebag shaped cast in situ grout bags over the entire 800 m length. The paper describes the Umm Shaif development, landfall, trench profile, trenching and installation, stabilization, and tie-in.
- OSTI ID:
- 89588
- Journal Information:
- Oil and Gas Journal, Journal Name: Oil and Gas Journal Journal Issue: 32 Vol. 93; ISSN OIGJAV; ISSN 0030-1388
- Country of Publication:
- United States
- Language:
- English
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