Caisson retained island for Canadian Beaufort Sea--geotechnical design and construction considerations
Conference
·
· Offshore Technol. Conf.; (United States)
OSTI ID:5413438
This paper reviews the development of the caisson retained island (CRI) concept for exploratory drilling in the Canadian Beaufort Sea and outlines the geotechnical design considerations for CRI construction. Since 1973 Esso Resources Canada has constructed sandbag retained and sacrificial beach type islands as drilling platforms. But the use of these islands is limited to relatively shallow water or areas with abundant borrow material. As exploration activity moved into areas where borrow material is scarce, economics favoured development of the CRI. During 1982 the first Esso caisson was fabricated in Japan and transported to Tuktoyaktuk in the Beaufort Sea where it currently awaits deployment in 1983. As the caisson arrived in the Beaufort, construction of the CRI berm was nearing completion at the Kadluk location. In geotechnical terms, the CRI design must ensure adequacy of the berm and the total structure. The major considerations for design include: the evaluation of stability under gravity and ice loads; estimates of deformation due to seabed and berm settlement; and the effect of filling rate for the CRI core on the differential water head relative to sea level.
- Research Organization:
- Esso Resources Canada, Ltd.
- OSTI ID:
- 5413438
- Report Number(s):
- CONF-830514-
- Conference Information:
- Journal Name: Offshore Technol. Conf.; (United States) Journal Volume: 3
- Country of Publication:
- United States
- Language:
- English
Similar Records
Constructing artificial islands in Canada's Beaufort Sea
The single steel drilling caisson: A novel approach to bottom-founded structures in arctic waters
Berm construction for the Gulf Canada Mobile Arctic Caisson. [Caissons sunk in a circle and the circle filled with sand as well as sand slopes on outside of circle]
Journal Article
·
Tue Jun 01 00:00:00 EDT 1982
· Ocean Ind.; (United States)
·
OSTI ID:6592822
The single steel drilling caisson: A novel approach to bottom-founded structures in arctic waters
Conference
·
Sat Oct 01 00:00:00 EDT 1983
· Soc. Pet. Eng. AIME, Pap.; (United States)
·
OSTI ID:5255481
Berm construction for the Gulf Canada Mobile Arctic Caisson. [Caissons sunk in a circle and the circle filled with sand as well as sand slopes on outside of circle]
Conference
·
Sun May 01 00:00:00 EDT 1983
· Offshore Technol. Conf.; (United States)
·
OSTI ID:5328523
Related Subjects
42 ENGINEERING
420206* -- Engineering-- Mining & Drilling Equipment & Facilities-- (1980-1989)
423000 -- Engineering-- Marine Engineering-- (1980-)
ARCTIC OCEAN
BEAUFORT SEA
CANADA
CONSTRUCTION
DEFORMATION
DESIGN
DRILLING
ECONOMICS
EXPLORATORY WELLS
NORTH AMERICA
OFFSHORE OPERATIONS
OFFSHORE PLATFORMS
SEAS
STABILITY
SURFACE WATERS
WELL DRILLING
WELLS
420206* -- Engineering-- Mining & Drilling Equipment & Facilities-- (1980-1989)
423000 -- Engineering-- Marine Engineering-- (1980-)
ARCTIC OCEAN
BEAUFORT SEA
CANADA
CONSTRUCTION
DEFORMATION
DESIGN
DRILLING
ECONOMICS
EXPLORATORY WELLS
NORTH AMERICA
OFFSHORE OPERATIONS
OFFSHORE PLATFORMS
SEAS
STABILITY
SURFACE WATERS
WELL DRILLING
WELLS