دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: any of the rod pumps, high-pressure liquid pumps, or centrifugal pumps located at or near the bottom of the well and used to lift the well fluids. See centrifugal pump. hydraulic pumping. submersible pump. sucker rod pumping.

n: a device that lifts oil from wells without the use of sucker rods. See hydraulic pumping.

an artificial lift system that is powered by injected fluid (usually water),that powers a pump similar to the rotating pump used in electrical submersible pumps.

n: a method of pumping oil from wells by using a downhole pump without sucker rods. Subsurface hydraulic pumps consist of two reciprocating pumps coupled and placed in the well. One pump functions as an engine and drives the other pump (the production pump). The downhole engine is usually operated by clean crude oil under pressure (power oil) that is drawn from a power-oil settling tank by a triplex plunger pump on the surface. If a single string of tubing is used, power oil is pumped down the tubing string to the pump, which is seated in the string, and a mixture of power oil and produced fluid is returned through the casing-tubing annulus. If two parallel strings are used, one supplies power oil to the pump while the other returns the exhaust and produced oil to the surface. A hydraulic pump may be used to pump several wells from a central source and has been used to lift oil from depths of more than 10,000 feet (3,048 metres).

n: any pump-surface or subsurface- that is used to lift fluids from the reservoir to the surface. See hydraulic pumping, submersible pump. sucker rod pumping.

n: in subsurface hydraulic pumping, the crude oil that is produced by a well, cleaned, and pumped back into the well to power the subsurface pump.

a fluid, usually dead oil or water, pumped downhole to operate a pump.

n: in subsurface hydraulic pumping, the crude oil that is produced by a well, cleaned, and pumped back into the well to energize the subsurface pump.