1.
BHA directional behavior
底部钻具组合定向特性
2.
multistabilizer BHA
多稳定器底部钻具组合
3.
BHA finite element model
底部钻具组合有限元模式
4.
BHA's relative rigidity
底部钻具组合的相对刚度
5.
semipacked bottom-hole assembly
半封隔井底钻具组合
6.
three-dimensional bottomhole assembly model
三维井底钻具组合模式
7.
weight-responsive bottom-assembly
对钻压敏感的井底钻具组合
8.
stiff bottom hole hook up
刚性的下部钻具组合
9.
Mechanical Performance and Fatigue Failure of Bottom Hole Assembly;
下部钻具组合力学特性分析及疲劳失效研究
10.
fully stabilized rotary assembly
全稳定的旋转钻具组合
11.
unit-type drill head
组合钻床钻头, 标准钻头
12.
steerable downhole motor assembly
可转向的井下马达钻具组合
13.
2.3 What is the BHA of this well?
这口井的钻具组合是什么？
14.
Development of core drill equipment for combined underwater drill rammer of rock built-in pile hole
嵌岩桩孔组合潜孔锤取心钻具的研制
15.
Study on Structure of Reaming While Drilling Tools and Design of Suitable Bottom-Hole Assembly;
随钻扩眼工具结构及与之相匹配的钻具组合设计方法研究
16.
combination center drill
组合中心钻，复合中心钻
17.
and are fitted with a cutting bit at the bottom.
它的底部装有钻头。
18.
Bottom-Hole Dynamic Coring Assembly Analysis Using the Finite Element Method and Deviation Control Research of Chinese Continental Scientific Drilling No.1 Well;
科钻一井井下动力取心钻具组合有限元分析与井斜控制研究