基于ABAQUS和SACS软件的“勘探三号”平台结构强度分析

Analysis of the Structure Strength of “KANTAN Ⅲ” Based on ABAQUS and SACS Software

吴永良 刘续

WU Yongliang LIU Xu

中国石油化工股份有限公司上海海洋油气分公司石油工程技术研究院, 上海 200120

Institute of Petroleum Engineering Technology, SINOPEC Shanghai Offshore Oil & Gas Company, Shanghai 200120, China

应用SACS海洋工程设计软件建立“勘探三号”半潜式钻井平台的SACS模型，根据各主要目标作业海区1 500 f（t 457m）水深的海洋环境资料，选取“勘探三号”平台在1 500 ft（457 m）作业水深的设计环境条件；应用SACS软件计算出“勘探三号”平台在此设计环境条件下所承受的风、海流和波浪力；应用ABAQUS有限元分析软件建立“勘探三号”平台的有限元分析模型，并对“勘探三号”平台在1 500 ft（457 m）作业水深环境载荷作用条件下进行结构强度分析，得出结论：在不做较大结构改动的前提下，通过局部的结构改造和加强，“勘探三号”平台能满足作业水深提高到1 500 ft（457 m）时海洋环境条件对其总体强度的要求，为该平台今后提高作业水深能力改造提供了结构强度方面的技术依据。可为今后类似半潜式钻井平台提高作业水深改造提供借鉴和参考。

SACS model of "KANTAN Ⅲ", semi-submersible drilling platform, is established on the application of SACS. The marine environment data of some sea area with 1 500 ft depth of sea water where are the potential operation areas of "KANTAN Ⅲ" are chosen as the environment condition. The force of wind, ocean current and wave that "KANTAN Ⅲ" has to bear is calculated by SACS. The finite element analytical model for "KANTAN Ⅲ" is established by ABAQUS and the structure strength analysis of "KANTAN Ⅲ" under the environmental loading of 1 500 ft operating water depth is conducted. It can be concluded that on the premise of without large scale of change in the structure, the local restructuring and strengthening on "KANTAN Ⅲ" platform can meet the requirements of overall strength when the operating water depth is increased to 1 500 ft. This study provides the technical base of structural strength for this platform's further restructuring to meet the requirement of operating in deeper water. It also can be used as a reference by the other similar semi-submersible drilling platform on the same purpose.

https://doi.org/10.3969/j.issn.1008-2336.2016.03.107