Batch drilling program cuts time, costs for Liuhua development
- Amoco Orient Petroleum Co., Shekou (China)
- China Offshore Oil Nanhai East Corp., Shekou (China)
The efficiency of batch drilling operations and the appropriate use of technology, teamwork, and thorough planning helped cut several days off the time to drill each of 10 subsea wells for the Liuhua 11-1 development project in the South China Sea. The overall development program calls for drilling and completing 20 subsea horizontal wells. The rig-of-opportunity phase was the initial phase of this development and used a contract rig to establish the subsea wellhead array and initiate drilling of the development wells. The wellhead array was the first critical step. It was the foundation for the building block construction process used to create Liuhua`s subsea production system on the seabed. The paper discusses conductor operations, batch drilling operations, surface hole section, intermediate and production hole sections, the ten wells, application of technology, and overall results.
- OSTI ID:
- 276602
- Journal Information:
- Oil and Gas Journal, Journal Name: Oil and Gas Journal Journal Issue: 33 Vol. 94; ISSN OIGJAV; ISSN 0030-1388
- Country of Publication:
- United States
- Language:
- English
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