Directional drill keys completion of South China Sea pipeline
- Cherrington Corp., Sacramento, CA (United States)
- KRW Associates, Sacramento, CA (United States)
Directional drilling laid dual 12-in. natural gas pipelines beneath a critical sea wall on Lantau Island, Hong Kong New Territories, to complete a 30-mile gas-pipeline crossing of the South China Sea. The project was part of Towngas Lantau construction for Hong Kong`s new Chek Lap Kok International Airport on the island. To avoid disturbing a newly installed sea wall at Ta Pang Po beach, NKK subcontracted parallel beach approaches to Cherrington Corp., Sacramento. Between July 11 and Aug. 2, 1995, Cherrington Corp. drilled and forward-reamed two, 20 in., 1,294-ft holes to pull back the twin pipelines. The project was completed during typhoon weather, high seas, strong currents, and logistical problems associated with operating in a remote uninhabited area. This paper reviews the design of the beach approach entries; staging and site preparations; drilling equipment used; and overall project operations.
- OSTI ID:
- 218348
- Journal Information:
- Oil and Gas Journal, Journal Name: Oil and Gas Journal Journal Issue: 15 Vol. 94; ISSN 0030-1388; ISSN OIGJAV
- Country of Publication:
- United States
- Language:
- English
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