دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a form of sucker rod pumping unit in which the rotor is a chrome-plated steel external helix and the stator is a synthetic elastomer with a double internal helix permanently bonded into a steel housing. Rotation of the rods by a vertical spindle electric motor at dte surface causes the rods to stretch a predetermined amount to maintain the rod string in tension. It also causes a cavity containing well fluid to progress upward. The system is a rotary positive-displacement unit.

n: a kinds of hard alloy tooth, it is a varitey of ball tooth..

n: 1. an area of land under exploration that has good possibilities of producing profitable minerals. 2. the set of circumstances, both geologic and economic, that justify drilling a wildcat well. v: to examine the surface and subsurface of an area of land for signs of mineral deposits.

a location where a well is to be drilled.

n: a device used to connect the prover to the pipeline either upstream or downstream of the meter to be proved.

n: a spherical or cylindrical object that is a component of a pipe prover. It has an elastic seal that contacts the inner pipe wall of a prover to prevent leakage. Flowing fluid causes it to move through the prover pipe, and as it moves it displaces a known measured volume of fluid between two fixed detecting devices.

n: 1. one movement of the displacer between the detectors in a prover. 2. the volume determined by a displacer traveling between detector switches in a single direction.

n: 1. the forward and reverse passes in a bidirectional prover. 2. the volume determined by a bidirectional displacer traveling between detector switches in one direction and in the return direction.

pressure relief valve.

pressure shut annular standing valve.