دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

to vent or drain of fluids from a pressured well.

n: a special valve used to bleed pressure slowly from a line or vessel. Also called a blow-down valve.

n: a circular metal disk installed in a pipeline to prevent flow by fastening it between flanges. v: to close a line to prevent flow.

n: a high-integrity valve with double seals and with provision for determining whether either seal leaks.

n: a three-dimensional perspective view of a cube. or block. of earth. It is developed from cross sections of the area.

n: a valve that completely shuts off flow of a fluid. It is usually either completely open or completely closed.

valve that blocks flow into the downstream conduit when in the closed position.