下扩眼器到海底 Make up bottom hole assembly. 组合下部钻具 Number stands on trip out and trip in. 起下钻时给立柱编号.
基于138个网页-相关网页
讨论了下部钻具组合分析的基本假设、基本方程和相应的边界条件。
The basic assumptions, equations and boundary conditions for bottom hole assembly (BHA) analysis were discussed.
经现场5口井试验表明，不弯曲钻铤能够起到增大下部钻具组合刚度，控制直井段井斜的作用；
The on-site tests of 5 wells showed that the stiffness of lower drill pipe assembly was increased to control deviation in the straight hole.
考虑下部钻具组合的弯曲效应和接触状态，运用间隙无法对下部钻具组合进行了受力变形计算。
The force and deformation of bottom hole assembly (BHA)are calculated by the gap-element method, in consideration for the bending effect and contact state of BHA.
应用推荐