Lesson 8 Spar Platform

Keywords and Expressions

Draft：吃水

Cylindrical：圆柱

Diameter：直径

Cost：成本

Horizontal：水平

Vertical：垂直

Agip：阿吉普石油产品公司

The Spar concept is a large deep draft， cylindrical floating Caisson designed to support drilling and production operations. Its buoyancy is used to support facilities above the water surface. It is， generally， anchored to the seafloor with multiple taut mooring lines. In the mid-seventies， Shell installed an oil storage and offloading Spar at Brent Field， in the North Sea.The hull is 95ft (29m) in diameter， necks down to 55ft (17m) at the water plane， and the operating draft is 357ft (109m). Agip installed a flare Spar off West Africa in 1992. The Spar is 233ft (71m) long， with a diameter of 7.5ft (2.3m)， which tap ......     （共2477字）    [阅读本文]>>