دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: the worst possible spill from a vessel or facility. Such a spill is determined by the maximum amount of discharge possible from the facility, or the total release of a full cargo from the firms largest vessel, in the worst weather conditions.

World Petroleum Council (formerly World Petroleum Congress).

well pulling hoist.

n: a flat area on an otherwise round fitting to which a wrench can be applied (as on sucker rod coupling). Also called a wrench square.

n: in an engine, the hard steel, hollow cylinder that attaches the piston to the piston rod. A circular opening in the piston is lined up with a corresponding circular opening in the rod and the wrist pin is pushed through the openings. Usually, special keys on each end of the pin lock the pin in the piston. Also called piston pin.

metal that is formed into a desired shape by rolling, extruding, forging, etc.