顺应塔平台与深水导管架平台的选择及适用性分析

Selection and Applicability Analysis of Compliant Tower Platform and Deepwater Jacket Platform

针对作业水深超过250 m的油气田,开发方案平台选型中有深水导管架、顺应塔平台、张力腿平台、Spar平台等多种选择,但根据不同油田具体开发规模及需要,每种平台均有其更为适用的特点。本文针对油气田作业水深为250~600 m的中等深水,详细分析在中等水深范围内,在世界范围内已投用的顺应塔平台和深水导管架平台的技术特点及主要问题,论证对比两者在平台结构重量、建造、运输、精度控制、经济性等多个方面的优劣势,从而为未来中国南海中超过250 m的中等深水油气田开发方案平台选型中提供参考。

For oil and gas fields with operating water depth of more than 250 meters,there are many choices in the selection of development platforms,such as deep-water jacket,compliant tower platform,tension leg platform and Spar platform.However,according to the specific development scale and needs of different oilfields,each platform has its own more applicable characteristics.In this paper,the technical characteristics and main problems of compliance tower platform and deep-water jacket platform,which have been put into use worldwide,are analyzed in detail for the medium-depth water of 250 m to 600 m in oil and gas field operation.The comparison of the two platforms is demonstrated in terms of platform structure weight,construction,transportation,accuracy control,economy and so on.The advantages and disadvantages of various aspects provide a reference for the selection of medium-deep-water oil and gas field development plan platforms in the South China Sea in the future which exceed 250 m.