1.
stiff bottom hole hook up
刚性的下部钻具组合
2.
STUDY ON THE INFLUENCE OF ABNORMAL WELL BORE ON BOTTOM HOLE ASSEMBLY STRESS IN GAS DRILLING
非正常井眼对气体钻井下部钻具受力影响研究
3.
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
4.
Analysis of BHA mechanical behavior of window cutting of herringbone multilateral wells
鱼骨型分支井开窗下部钻具力学性能分析
5.
BHA directional behavior
底部钻具组合定向特性
6.
multistabilizer BHA
多稳定器底部钻具组合
7.
plain clinometer
钻杆下部装的测斜仪
8.
A NEW METHOD OF SOLVING BUILD-UP HOLE ANGLE PROBLEM ON PENDULUM ASSEMBLY WHILE WOB IS INCREASING
解决钟摆钻具在大钻压下增斜问题的新思路
9.
Pull out (or run in ) the string up to the shoe and hang it on the 5 inches pipe ram] .
起钻（或下钻）至套管鞋处，并把钻具悬挂在5”闸板防喷器上。
10.
BHA finite element model
底部钻具组合有限元模式
11.
BHA's relative rigidity
底部钻具组合的相对刚度
12.
Design of Annular Slot Cutting Tool Used in Rock Stress Measurement with Borehole-wall Stress Relief Method
钻孔局部壁面应力解除切割工具设计
13.
steerable downhole motor assembly
可转向的井下马达钻具组合
14.
downhole performance
钻具等设备的井下工作性能
15.
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
16.
Study on Drilling Craftsmanship and Work Time of American-style Furniture Components;
美式家具零部件钻孔工艺与工时的研究
17.
Any of numerous hand tools for boring holes.
钻孔工具，手钻钻孔用的手持工具
18.
auger with valve
(钻浅井用) 带阀螺旋钻具