作业水深

随着技术的进步，半潜式钻井平台和钻井船不断更新换代，额定作业水深和钻深能力相应增大。

Continued technological advances are pushing the rated depth of underwater operation and drilling capacity to record highs .

由于渔场作业水深不同、渔获组成不同和捕捞对象不同，萤光网的捕捞效应也发生变化。

The fishing effect will vary with the depth of different fishing area , the composition of the catches and the kinds of target species .

胜利石油管理局钻井工艺研究院结合自升式平台、坐底式平台、半潜式平台的技术特点，发明了一种分体自升式平台结构形式，用于延伸自升式平台的作业水深。

Research Institute of Shengli Petroleum Administration drilling technology invented a split form of jack-up platform for extending the operating depth of the jack-up platform , which combined the technical characteristics of jack-up platform , bottom platform and semi-submersible platform .

首先在中国船舶科学研究中心耐波性水池（69×46×4米）的不规则波中完成了模型试验，该平台的实际总排水量为51000吨，作业水深为250米。

Model test were performed in irregular waves in seakeeping basin at CSSRC ( 69 × 46 × 4m ) . The prototype of model has of overall displacement of 51000 tons and operating in a water depth of 250m .

立管系统是海洋平台进行海底油气输送的重要设施和关键部分，随着作业水深的发展，立管长度可达几千米。

A key element of the platform is the marine riser system , which plays an important part in transporting the oil and gas from the seabed to the platform . Marine risers can be thousands of meters long as the prodution depth goes .