Lesson 3 Jacket Platform

Keywords and Expressions

Jacket：导管架

Pile guide (sleeve)：打桩导管

Float off：浮运

Self right：自我就位

Numerically programmed cutting：数控切割

Bracing：水平横撑

HAZ (Heat Affected Zone)：热影响区

Cathodic protection：阴极保护技术　

Figure 3.1　Fulmar jacket platform

3.1　Jacket Platform

The jacket， or template， structures are still the most common offshore structures used for drilling and production. Some structures contain enlarged legs， which are suitable for self-buoyancy during its installation at the site. Fixed jacket structures consist of tubular members interconnected to form a three-dimensional space frame (see Figure 3.1). These structures usually have four to eight legs battered to achieve stability against toppling in waves. Main piles ......     （共5553字）    [阅读本文]>>