drilling assembly

Dynamic model of bottom hole assembly used in pre-bending dynamic vertical and fast drilling technology;

预弯曲动力学防斜打快钻具组合动力学模型

Sensibility analysis of the factors affecting the stress level of bottom hole assembly;

下部钻具组合应力水平影响因素的敏感性分析

Dynamic analysis of the hinged bottom hole assembly;

铰接式钻具组合的动力学分析

semipacked bottom-hole assembly

半封隔井底钻具组合

three-dimensional bottomhole assembly model

三维井底钻具组合模式

weight-responsive bottom-assembly

对钻压敏感的井底钻具组合

BHA directional behavior

底部钻具组合定向特性

multistabilizer BHA

多稳定器底部钻具组合

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

steerable downhole motor assembly

可转向的井下马达钻具组合

2.3 What is the BHA of this well?

这口井的钻具组合是什么？

BHA finite element model

底部钻具组合有限元模式

BHA's relative rigidity

底部钻具组合的相对刚度

Experiment of Formate Drilling Fluid for Drilling in Marine Gas Hydrate Bearing Sediments

海底天然气水合物地层钻探甲酸盐钻井液实验

fully stabilized rotary assembly

全稳定的旋转钻具组合

stiff bottom hole hook up

刚性的下部钻具组合

auger with valve

(钻浅井用) 带阀螺旋钻具

offshore drilling

海底钻探;海上钻井;海上钻探;海洋钻井;海洋钻探;近海钻探;滨外钻探

Study of Corrosion to Drilling Rigs by Solid Free Composive Salt Drilling and Completion Fluids and Its Prevention Technology

无固相复合盐水钻井完井液对钻具腐蚀规律与防护技术研究

Analysis on balling up caused by helicoid hydraulic motor bypass valve failure in combined drilling technology

复合钻井过程中螺杆钻具旁通阀刺漏造成钻头泥包分析

Study on Bottom Hole Flow Field of B9M-PDC Scraper Bit

B9M型金刚石复合片刮刀钻头井底流场研究