دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

v: under certain drill pressure,drilling without langing the drilling tools until there is no pressure

n: the computer program used to work out the best drill pressure and relevant drilling speed according real-time data from the drill off test

n: refer toweight on bit

n: an exploratory drilling to define the drill pressure and rotate speed at the least cost when use new bit or the layer is variable

n: an exploratory drilling to define the drill pressure and rotate speed at the least cost when use new bit or the layer is variable

n: an instrument that records hook load, rate of penetration, rotary speed and torque, pump rate and pressure, mud flow, and so forth during drilling. drilling rig n: see rig.

n: the instrment used to record the drillng parameters during drilling such as the drill speed ,rotate speed ,drill pressure ,torque , fluid volume,pump pressure ,hook load and fluid ability and so on

n: in condition of purified bottom hole,drill speed is linear with drill pressure in big ranges.

n: the phenomenon that diamand burned out or softened because of overheated caused by scarce delivery capacity of drill fluid versized drill pressure when adamantine drill working under the bottom of well。