The jacket cap for drilling is temporal structure and it can be used about 1 to 2 years.
钻井帽是临时性结构，使用时间即给定周期，一般约1～2年。
Some drilling rig cannot drill Wells over the jacket and the jacket cap for drilling is a good solution for such problem.
利用钻井用导管架帽(简称钻井帽)进行钻井作业是解决某些钻井船不能悬跨导管架钻井问题的好方案。
Some drilling rig cannot drill Wells over the jacket and the jacket cap for drilling is a good solution for such problem.
利用钻井用导管架帽(简称钻井帽)进行钻井作业是解决某些钻井船不能悬跨导管架钻井问题的好方案。
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