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.
在石油鑽井過程中，鑽柱承載著大量的工作，因而井下鑽柱部分常常出現(xiàn)許多故障和問題，且這些問題大多都是由於鑽柱的彎曲變形與套琯壁産生磨損及振動造成的。 返回 pipe-in-pipe casing string