drill jar

Development and application of integral mechanical jar while drilling;

QJ159A整体机械式随钻震击器的研制及应用

To solve this problem,QJ159A integral mechanical jar while drilling is developed.

针对液压式、机械式随钻震击器因密封材料受介质腐蚀和井底高温的影响,技术性能不稳定,使用寿命低的问题,研制了QJ159A整体机械式随钻震击器。

pressure balanced drilling bumpersub

压力平衡式钻井震击器

An analysis of the failure of the while-drilling bumper sub and damper and its solution

随钻震击器及减震器失效分析与解决方案

Improvement and Application of Hydraulic Jar for High Pressure and Super Deep Wells

高压、超深井液压震击器的改进及应用

Research on the Working Life of Key Accessory of Oil Drilling Impacting Machine;

石油钻井冲击器关键零部件工作寿命的研究

diamod-enhanced hammer bit

金刚石镶齿震击钻头

A Study of the Technique of Cable Drilling in Modern Time;

浅述近代冲击(顿钻)钻井工艺技术

electrically driven rotary sidewall sampler

电动钻进式井壁取心器

The Effect of Earthquake and Soil on Jack-Up;

土壤与地震对自升式钻井平台的作用

Study on the Method of Joint Inversion of Seismic and Well-log in Drilling Simulation;

钻井模拟中地震测井联合反演方法研究

To bore(a shaft) with a trepan.

钻用钻井机钻（矿井）

Improve drilling technology for complex reservoirs by seismic inversion

利用地震数据反演改进复杂油藏钻井工艺

Low-power Design of LWD Sensor

随钻测井系统井下传感器的低功耗设计

Analysis on subsea wellhead stability of surface BOP drilling system in deepwater operations

深水水上防喷器钻井系统水下井口稳定性分析

oil-sealed jar safety joint

油封式震击器安全接头

fishingcoring jar

打捞和取心用震击器

Research on Sub-sea BOP Arrangement for Deepwater Drilling

深水钻井水下防喷器组配置选型研究

Non-impact Working Condition of Drilling Pump Valve Based on the Effects on Stress Concentration

基于应力集中影响的钻井泵阀无冲击工作条件

An oil platform.

钻井平台石油钻井平台