drilling pressure differential

An analysis on influential parameters for modeling permeability profile during underbalanced drilling in horizontal wells

水平井负压钻井渗透率剖面计算模型影响参数

Diesel engine tail gas drilling is a kind of gas-based underbalanced drilling, with advantages of protecting oil/gas reservoirs and improving ROP.

柴油机尾气负压钻井属气基欠平衡钻井,具有保护油气层和提高钻井速度等优点,但柴油机尾气成分复杂对石油管材可产生不同程度的腐蚀。

An analysis on influential parameters for modeling permeability profile during underbalanced drilling in horizontal wells

水平井负压钻井渗透率剖面计算模型影响参数

Underbalanced Drilling Horizontal Permeability Estimation Model parameters sensitivity analysis

非均质油藏负压钻井渗透率剖面计算模型参数敏感性分析

Drilling Fluid Technology for MPD in Moderate and Deep Well in Binhai Oilfield.DFCF,

滨海油田中深层控压钻井钻井液技术

HORIZONTAL WELL DRILLING TECHNOLOGY USED IN HIGH-PRESSURE DEEP WELLS IN KAZAKSTAN

哈萨克斯坦高压深井水平井钻井技术

high pressure water jet drilling system

高压水射流钻井系统

pressure balanced drilling bumpersub

压力平衡式钻井震击器

weight-responsive bottom-assembly

对钻压敏感的井底钻具组合

Calculation of Eccentric Wellbore Pressure Drop and Air Volume Requirements in Air Drilling

空气钻井偏心井筒压力及注气量计算

NEW DRILLING IDEA OF ABNORMAL ULTRA-HIGH PRESSURE DEEP DRILLING APPLIED IN GUANDU STRUCTURE

官渡构造异常超高压深井钻井新思路

Factor analysis of pressure used in managed pressure drilling on injected gas

充气控压钻井过程压力影响因素分析

To bore(a shaft) with a trepan.

钻用钻井机钻（矿井）

Research on the Method of Wellbore Temperature and Pressure Calculation during Deep-water Drilling;

深水钻井环境下的井筒温度压力计算方法研究

Rheological Properties of Water-Based Drilling Fluids in Ultra-Deep Wells at High Temperature and High Pressure

超深井水基钻井液高温高压流变性试验研究

HIGH TEMPERATURE HIGH PRESSURE ULTRA-DEEP WELL DRILLING FLUID DENSITY DESIGN METHOD

高温高压超深井钻井液密度设计方法探讨

Application of Hydraulic Pressure System of Umbrella Drill to the Construction of Shaft in Hard Rock

液压伞钻在立井硬岩段施工中的应用

Analysis on Mining Released Gas Sources for Surface Borehole Drilling and Gas Drainage

地面钻井抽采采动卸压瓦斯来源分析

Diesel oil drilling equipment down automatically transform

钻井柴油机油压低自动停车装置改造

Application of pressure controlled drilling technology of well Tazhong 62-13H

控压钻进技术在塔中62-13H井中的应用