دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: 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 into the well as a complete unit.

n: in pipe laying, a type of trenching machine used on river crossings when the channel cannot be diverted or when the volume of material to be removed is large. A suction pump rapidly forces large amounts of soil into a discharge pipe for deposit on the adjacent bank. A cutterhead can also be used on a suction dredge.

n: the line that carries a product out of a tank to the suction side of the pumps. Also called the loading line. suction pit n: also called a suction tank, sump pit, or mud suction pit. See suction tank. suction pressure n: the pressure of a gas or fluid entering the suction valve of a compressor.

n: The pipeline between attachment flange at the induction port of pump and suction pit.

n: the temperature of a gas or fluid entering the suction valve of a compressor.

n: on a mud pump, the intake valve through which mud is drawn into the pump.

n: The open valve when drill pump suck drill fluid from mud pit .

n: a crystalline acid (NH2S03H) derived from sulfuric acid that is sometimes used in acidizing.

a dry acid derivative of sulfuric which is used in very minor acid jobs in the form of acid sticks dropped into the well.

n: (S) a pale yellow, nonmetallic chemical element. In its elemental state- free sulfur-it has a crystalline or amorphous form. In many gas streams, sulfur may be found as volatile sulfur compounds- hydrogen sulfide, sulfur oxides, mercaptans, carbonyl sulfide. Reduction of their concentration levels is necessary for corrosion control and, in many cases, necessary for health and safety reasons.

n: light crude oil that contains sulfur compounds, often in the form of hydrogen sulfide. a capacity larger than 100,000 deadweight tons but less than 500,000 deadweight tons (45,360 deadweight tonnes) are called very large crude carriers. Those with a capacity over 500,000 deadweight tons are called ultralarge crude carriers.

n: a colorless, oily liquid compound of hydrogen, sulfur, and oxygen (H2SO4) strongly poisonous and corrosive. It is formed when hydrogen sulfide (H2S) or sulfur dioxide (SO2) is mixed with water (H2O). Also called vitriolic acid.

n: the depression that occurs in the summer months in the daily load of a gas-distribution system or pipeline.