borehole pressure recorder

Pressure recorder 2uu-J containing a timer and a pressure recorder is one of the major instruments using inforimtion tests.

200－J压力记录仪是地层测试的主力仪表，包括活塞式压力计和计时器。

horizontal borehole pressure recorder

水平钻孔压力记录器

pressure balanced drilling bumpersub

压力平衡式钻井震击器

recording gas pressure gauge

瓦斯压力自动记录器

The paper sequentially analyzed the starting-crack mechanism of hydraulic fracture bore which lies in coal delamination or lies between two coal delaminations or through many coal delaminations.

进而论文分析阐述了煤分层中钻孔、分层层面钻孔、以及穿层钻孔水力压裂的起裂机理。

Application of Horizontal Borehole Technology by Hydraulic Jetting in Changqing Longdong Oilfield

水力喷射水平钻孔技术在长庆陇东油田的应用

Application of Bit Water Way in HDD

水平定向钻进扩孔钻头水口应用分析

jet piercing burner

热力喷射钻孔燃烧器

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

Structure design of hydraulic thruster and computation model of weight on bit in micro-hole

微小井眼水力加压器结构设计及钻压计算

An instrument used to record very small changes in atmospheric pressure.

微（气）压计用来记录大气压力的极小变化的仪器

Estimation of maximum horizontal principal stress magnitude from stress-induced well bore breakouts in the Cajon pass scientific research borehole

利用卡洪山口科学研究钻孔中应力引起的钻孔崩落估计最大水平主应力值

Research on the Use of Later Low-pressure Grouting to the Drilling Hole Pour Pile;

钻孔灌注桩低压力后压浆的应用研究

Research on In-situ Exploring and Hydraulic Correction Technology for Coalbed Methane Subhorizontal Drilling;

煤层气近水平孔钻进原位探测与水力纠偏技术研究

An approach to determining pre-drilling formation pore pressure with credibility for deep water exploration wells

深水探井钻前含可信度的地层孔隙压力确立方法

With the compressor clutch engaged, record the discharge air temperature and the compressor discharge pressure.

当压缩机离合器合上时，记录排放空气温度和压缩机排放压力。

VASCAR (Visual Average Speed Computer and Recorder)

电脑平均车速记录器

electronic automatic balancing recorder

电子式自动平衡记录器

electronic self balancing type recorder

电子自动平衡记录器