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东方气田海管悬跨段安全评估分析
姚平¹, 范奉鑫², 李中阳³, 李磊³, 曹玉龙³, 刘洋³
1.中海石油(中国)有限公司湛江分公司生产部;2.中国科学院海洋地质与环境重点实验室;3.中国科学院力学研究所环境力学重点实验室

摘要:

从工程实际问题出发, 利用实际测量资料, 通过建立近底床悬跨海管的有限元模型, 计算了不同底床形状下海管最大静挠度随海流流速变化的规律, 对东方1-1 气田某标段海管进行了安全评估,筛选出了危险悬跨段。这一计算结果对海管的防护维护工程实践具有切实的指导意义。

关键词: 东方1-1 气田海底悬跨管线评估分析有限元模型沙波

DOI：

分类号:

基金项目:中国科学院知识创新工程重要方向项目(KZCX2-YW-212-2); 国家科技部“863” 目标导向类项目(2006AA09Z301); 国家基金委自然科学基金项目(40776057)

Security analysis for the spanning pipelines located in Dong-Fang 1-1 Gas Field

Abstract:

Submarine pipelines are major instruments for transporting oil and gas. A finite element model was established for the spanning pipelines near a seabed. The variations of pipeline deformation with current velocity was calculated according to the measurement data of Dong-Fang 1-1 Gas Field. The security assessments was analyzed. The dangerous segments of a spanning pipeline were pinpointed. This result will guide the company in preventive measures for dangerous spanning pipelines.

Key words: Dong-Fang 1-1 Gas Field submarine spanning pipelines assessment analysis finite element model sand waves

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