Cognac: World's Tallest Offshore Oil Platform

by Allen Morrison, Asst. Editor; Civil Engineering Magazine, ASCE World Headquarters, 345 East 47th Street, New York City, NY.,

Serial Information: Civil Engineering—ASCE, 1980, Vol. 50, Issue 6, Pg. 55-59

Document Type: Feature article

Abstract: Shell Oil's 1980 OCEA-winner is a three-sectioned design of steel fabrication and deep-sea installation. Cognac is currently the world's tallest, heaviest, and deepest-water platform, it supports the largest number of wells ever in a single platform, and its installation featured the first successful use of an underwater pile driver. The article reviews the prospects for future domestic oil production, the new recovery systems, the obstacles to speedy development, and the political context of continued dependence on foreign oil. Proposed recovery systems like the guyed tower, tension-leg platform, and submerged production system are further overshadowed by uncertainty about how many major oil fields remain in U.S. coastal waters.

Subject Headings: ASCE outstanding civil engineering | Offshore platforms | Offshore structures | Pile driving | Underwater construction |

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