自升式钻井平台桩靴改造降低穿刺风险可行性分析

天津科技 ›› 2023, Vol. 50 ›› Issue (8): 43-45.

自升式钻井平台桩靴改造降低穿刺风险可行性分析

邓成辉¹, 左坤¹, 杨战², 刘超³, 张海涛³

1.中海石油（中国）有限公司深圳分公司广东深圳 518000;
2. 中国石油大学（北京）安全与海洋工程学院北京 102249;
3.中海油能源发展股份有限公司工程技术中心深圳分公司广东深圳 518000

收稿日期:2023-08-02 出版日期:2023-08-25 发布日期:2023-12-26

Feasibility Analysis of Spud Can Modification of Jack-up Drilling Platform to Reduce Puncture Risk

DENG Chenghui¹, ZUO kun¹, YANG Zhan², LIU Chao³, ZHANG Haitao³

1. Shenzhen Branch,CNOOC <China> Co.,Ltd.,Shenzhen 518000,Guangdong Province,China;
2. College of Safety and Ocean Engineering,China University of Petroleum <Beijing>,Beijing 102249,China;
3. Engineering Technology Branch,CNOOC Energy Technology & Services Limited,Shenzhen 518000,Guangdong Province,China

Received:2023-08-02 Online:2023-08-25 Published:2023-12-26

摘要/Abstract

摘要： 自升式钻井平台是海上石油开发的重要装备,穿刺问题一直是自升式钻井平台进行插桩作业时的难题。目前自升式钻井平台作业时需要对目的层进行勘探分析、对插桩穿刺风险进行预测,具有穿刺风险的地层可采取主动穿刺法降低插桩作业风险,但主动穿刺法作业周期长,且钻孔具有回填、垮塌等问题。以EP20-5区块为例,提出了桩靴改造降低穿刺风险的方法,对比分析了海龙9号钻井平台桩靴改造前后的穿刺风险系数。预测结果表明,改造后的桩靴能有效降低穿刺风险,桩靴改造在降低穿刺风险的方法中具有可行性。

关键词: 自升式钻井平台, 插桩, 穿刺风险, 桩靴改造

Abstract: Jack-up drilling platform is an important equipment for offshore oil development. Puncture problem has always been a difficult problem for jack-up drilling platforms during pile insertion operations. At present,when the jack-up drilling platform is working,it is necessary to explore and analyze the target layer and predict the risk of pile insertion. Active puncture method can be adopted in strata with puncture risk to reduce the puncture risk of pile insertion operation. However,the active puncture method has a long operation cycle,and the drilling has problems such as backfilling and collapse. Taking EP 20-5 as an example,this paper puts forward the method of reducing the puncture risk by spud can modification,and compares and analyzes the puncture risk coefficient of HL9 drilling platform before and after spud can modification. The prediction results show that the modified spud can can effectively reduce the puncture risk,and the spud can modification is feasible in the method of reducing the puncture risk.

Key words: jack-up drilling platform, pile-inserting, puncture risk, spud can modification

中图分类号:

TE951

邓成辉, 左坤, 杨战, 刘超, 张海涛. 自升式钻井平台桩靴改造降低穿刺风险可行性分析[J]. 天津科技, 2023, 50(8): 43-45.

DENG Chenghui, ZUO kun, YANG Zhan, LIU Chao, ZHANG Haitao. Feasibility Analysis of Spud Can Modification of Jack-up Drilling Platform to Reduce Puncture Risk[J]. TIANJIN SCIENCE & TECHNOLOGY, 2023, 50(8): 43-45.