geophysical jetting bit

Based on the current research status of domestic & foreign ultra high pressure jet drilling techniques, the paper discusses the feasibility and reality of the domestic research of 30~50 MPa down hole booster pump combining with the current jet drilling conditions.

超高压喷射钻井技术可大幅度提高钻头进尺和机械钻速 ,并降低钻井成本 ,为高效快速钻井开辟了广阔的前景。

As a new popular topic, the technique of overpressure jet drilling is being paid people's attention.

超高压喷射钻井技术是通过超高压力的液体介质以集中能量达到水力切割破碎岩石的效果。

Meanwhile,the feasibility and implement method of jetting drilling on ultra-deep wells was analyzed,and point out that the ultra-deep well hydraulic parameters design should follow the minimum flow rate designing method,and also provides good reference for ROP improvement of ultra-deep wells.

同时,分析了超深井钻井喷射钻井的可行性及实现方式,指出超深井水力参数设计需按最小流量法设计,为提高超深井钻井速度提供了有益的参考。

Ouantitatively Calculating Method of Rheological Parameters of Jet Drilling Mud

喷射钻井泥浆流变参数定量计算方法

Study on the Bottom Hole Pressure Properties of the Oscillating Pulse Jet-Nozzled Bit

振荡脉冲射流喷嘴钻头井底压力特性研究

Oil whooshed up when the drill hit the well.

当钻孔机钻井时，石油喷了出来。

jet piercing burner

热力喷射钻孔燃烧器

high pressure water jet drilling system

高压水射流钻井系统

ejector-type through-tubing too

喷射式过油管下井仪

Oil suddenly jetted out of rig number four.

油突然从四号钻井中喷了出来。

AUTOMATIC METHOD OF DST ANALSIS

非自喷井钻柱测试解释的自动拟合法

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

A fountain of oil gushed up through the floor and high over the top of the derrick into the darkness.

油喷涌上来了，穿过钻台，超过井架，喷入夜空。

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

This is jet bit and that is a PDC bit.

这是喷射式钻头，那是人造聚晶金钢石钻头。

Improvement of penetration rate with hydraulic pulsating-cavitation jet compound drilling technology

利用水力脉冲空化射流复合钻井技术提高钻速

To bore(a shaft) with a trepan.

钻用钻井机钻（矿井）

Experiment Study on Ultra-Deep Well Hydraulic Pulsating-Cavitating Water Jet Drilling

超深井水力脉冲空化射流钻井试验研究

Design and Numerical Simulation of Nozzle of Drilling Fluid Mixer

钻井液混合器中喷嘴的设计与数值模拟

Study on the Effect of the Nozzle of Drag Bits on Bottom Hole Flow Field

刮刀钻头喷嘴直径对井底流场的影响研究

Development and Application of Multipurpose Underground Borehole Blowout Preventer

多功能井下钻孔防喷装置的研制和应用