pipe-in-pipe casing string
常見例句
- Drill string is an important tool in drilling process. Because it contact between drill stem and casing-pipe wall, several fault happen on the drill string in the course of drilling.
在石油鉆井過程中，鉆柱承載著大量的工作，因而井下鉆柱部分常常出現(xiàn)許多故障和問題，且這些問題大多都是由于鉆柱的彎曲變形與套管壁產(chǎn)生磨損及振動(dòng)造成的。 返回 pipe-in-pipe casing string