دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: The phenomenon that the cutting capacity decreases or vanishes due to abrasion, shattering, clipping, fall-out or burnout of diamond in the using process of diamond bit.

n: a kind of drilling method in which the principle of current-heating shattering is applied

n: The shape of the cuttings of cavy and friable hard shale after it be drilled.

v: 1. to explode nitroglycerine or other high explosives in a hole to shatter the rock and increase the flow of oil;now largely replaced by formation fracturing. 2. in seismographic work, to discharge explosives to create vibrations in the earths crust. See seismograph.

n: 1. a charge of high explosive, usually nitroglycerine, detonated in a well to shatter the formation and expedite the recovery of oil. Shooting has been almost completely replaced by formation fracturing and acid treatments. 2. a point at which a photograph is made in a single-shot survey. See directional survey.