Related Oil & Gas Terms

• Sucker rod pump

  The downhole assembly used to lift fluid to the surface by the reciprocating action of the sucker rod string. basic components are barrel, plunger, valves, and hold-down. two types of sucker rod pumps are the tubing pump, in which the barrel is attached to the tubing, and the rod, or insert, pump, which is run...

• Reciprocating pump

  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...

• Closing ratio

  The ratio between the pressure in the hole and the operating-piston pressure needed to close the rams of a blowout preventer....

• Diesel engine

  A high-compression, internal-combustion engine used extensively for powering drilling rigs. in a diesel engine, air is drawn into the cylinders and compressed to very high pressures; ignition occurs as fuel is injected into the compressed and heated air. combustion takes place within the cylinder above the piston, and expansion of the combustion products imparts power...

• Mud pump

  A large, high-pressure reciprocating pump used to circulate the mud on a drilling rig. a typical mud pump is a two-cylinder, double-acting or a three-cylinder, single-acting 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....