1.
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
2.
steerable downhole motor assembly
可转向的井下马达钻具组合
3.
semipacked bottom-hole assembly
半封隔井底钻具组合
4.
three-dimensional bottomhole assembly model
三维井底钻具组合模式
5.
electrically driven rotary sidewall sampler
电动钻进式井壁取心器
6.
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
7.
weight-responsive bottom-assembly
对钻压敏感的井底钻具组合
8.
Study on the Modeling and the Hydromechanics of the Fluid in the Auto Anti-Deviation Drilling System;
自动垂直钻具井下流场建模及受力分析
9.
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
10.
WOB CALCULATION FOR COMBINATION OF HYDRAULIC THRUSTER AND DOWNHOLE MOTOR
水力加压器和井下马达组合时的钻压计算
11.
stiff bottom hole hook up
刚性的下部钻具组合
12.
2.3 What is the BHA of this well?
这口井的钻具组合是什么？
13.
Study on Dynamics of the Underground Unit of the Electric Submersible Pump
电动潜油离心泵井下机组动力学研究
14.
Study on Nonlinear Dynamics Action of Integrated Bit-Rock-Drillstring-Well System;
钻头—岩石—钻柱—井壁互作用下系统耦合非线性动力学研究
15.
Wellbore dynamic surge pressure while tripping a drill pipe in slim hole drilling
小井眼钻具升降产生的孔内波动压力
16.
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
17.
Mechanical Analysis and Design of Coring BHA in Long Horizontal Segment
水平段大段取心钻具力学分析与设计
18.
combination center drill
组合中心钻，复合中心钻