摘要
埕岛油田主要分布粉土和淤泥质软土2类典型的海床。通过建立海床与其上裸置管线相互作用的有限元计算模型,对埕岛油田2类典型海床上裸置管线的在位稳定性进行了数值计算分析,并与现行常用的DNV(挪威船级社)管道设计方法的计算结果进行了对比。分析表明,对于埕岛油田粉土海床上裸置管线的在位稳定性分析,数值计算结果与DNV简化分析方法的结果较为一致;对于埕岛油田淤泥质软土海床上裸置管线的在位稳定性分析,DNV简化分析得到的裸置管线的在位稳定性一般高于相应的数值计算结果。
In Chengdao oil field, there are two main kinds of typical seabed, that is the silt seabed and the soft-clay seabed. Based on the finite element model for interaction of the seabed and the untrenched submarine pipelines, on-bottom stability analysis of submarine pipelines on the two kinds of typical seabed has been performed. The numerical results have been compared with that of the DNV pipeline stability design standard. The comparison has shown that for on-bottom stability analysis of submarine pipelines on the silt seabed, the numerical computing results consist with that of the DNV simplified design method. While for on-bottom stability analysis of submarine pipelines on the soft-clay seabed, in most cases, results of the DNV simplified design method are higher than that of the numerical computation.
出处
《中国海洋大学学报（自然科学版）》
CAS
CSCD
北大核心
2010年第1期59-62,68,共5页
Periodical of Ocean University of China
基金
中石化集团公司重点攻关项目(JP05007)资助
关键词
埕岛油田
海底管线
在位稳定
Chengdao oil field
submarine pipelines
on-bottom stability
