水下井口切割回收技术研究

Research on subsea wellhead cutting and recovery technology

目前国内水下油气田、深水钻完井正处于快速发展阶段,近两年也有多个水下井口油气田进入整体弃置阶段。本文以近年国内的水下井口弃置作业为导入,结合磨料射流设备及国外一些作业案例,进行水下井口弃置方案的研究。该研究可为我国后续深水水下井口弃置作业提供一种思路或备用方案。

At present,deepwater oilfields and deepwater drilling&completion are in the stage of rapid development in china.In recent two years,many deepwater oilfields have entered the stage of overall abandonment.Based on the domestic subsea wellhead removal operation in recent years,combined with water abrasive suspension cutting equipment and some foreign operation cases,this paper studies the subsea wellhead removal scheme.The research can provide an idea or plan B for the subsequent deepwater subsea wellhead removal operation in China.