Lesson 5 Semi-Submersible Platform

Keywords and Expressions

Semi-submersible platform：半潜式平台

Pontoon：浮体

Diagonal cross bracing：交叉斜撑杆

Column：立柱

Derrick：井架

DP (Dynamic Positioning)：动力定位

Production riser：生产立管

Oil storage capability：储油量

Deck load：甲板载荷

Drill floor：钻井井场

Prying and racking loads：横向扭变载荷

MODUS (mobile offshore drilling units)：移动式近海钻井平台

5.1　Introduction

Semi-submersibles are multi-legged floating structures with a large deck. These legs are interconnected at the bottom underwater with horizontal buoyant members called pontoons. Some of the earlier semi-submersibles resemble the ship form with twin pontoons having a bow and a stern. This configuration was considered desirable for relocating the unit from dri ......     （共5712字）    [阅读本文]>>