دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a reciprocating pump with two pistons or plungers and used extensively as a mud pump on drilling rigs.

n: A reciprocating positive displacement pump having two pistons that are double-acting. Used as the circulating pump on some older drilling rigs.

a type of pump with two, dual acting pistons.

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: a large, high-pressure reciprocating pump used to circulate the mud on a drilling rig. A typical mud pump is a single- or double-acting, two- or threecylinder piston pump whose pistons travel in replaceable liners and are driven by a crankshaft actuated by an engine or a motor. Also called a slush pump.

n: a large reciprocating pump used to circulate the drilling fluid down the well.both duplex and triplex pumps are used with replaceable liners. mud pumps are also called slug pumps

primary mud circulation pumps on the rig.

n: 1. a basic component of the sucker rod pump that serves to draw well fluids into the pump. 2. the rod that serves as a piston in a reciprocating pump. 3. the device in a fuel-injection unit that regulates the amount of fuel pumped on each stroke.

n: a reciprocating pump for circulating drilling fluids. It operates through cranks and connecting rods by power supplied to its crankshaft from an electric motor or internal-combus- tion engine. It may be a duplex (with two cylinders) or a triplex (with three cylinders). Some mud pumps have double-acting pistons, and some have single-acting pistons that function as plungers.

n: a device that increases the pressure on a fluid or raises it to a higher level. Various types of pumps include the bottom- hole pump, centrifugal pump, hydraulic pump, jet pump, mud pump, reciprocating pump, rotary pump, sucker rod pump, and submersible pump.

n: a cylindrical, accurately machined, metallic section that forms the working barrel of some reciprocating pumps. Liners are an inexpensive means of replacing worn cylinder surfaces, and in some pumps they provide a method of conveniently changing the displacement and capacity of the pumps.

n: the working liner of reciprocal pump.

n: any of the valves on a reciprocating pump (such as suction and discharge valves) or on a sucker rod pump (such as a ball-and-seat valve).

n: feed valve and drainage valve of reciprocal pump.

n: a pump consisting of a piston that moves back and forth or up and down in a cylinder. The cylinder is equipped with inlet (suction) and outlet (discharge) valves. On the intake stroke, the suction valves are opened, and fluid is drawn into the cylinder. On the discharge stroke, the suction valves close, the discharge valves open, and fluid is forced out of the cylinder.

n: A type of fluid pump in which reciprocating pistons or plungers displace the fluid.

a piston pump.

n: a reciprocating pump with three pistons or plungers.

n: A positive-displacement reciprocating pump that is configured with three plungers. Triplex pumps are the most common configuration of pump used in both drilling and well service operations. Pumps used in well service activities generally are capable of ha

a pump with three cylinders.