دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: the percentage of the total bulk volume of a rock sample that is composed of pore spaces or voids. See porosity.

the percentage of the total bulk volume that is pore spaces, voids or fractures.

n: The casing float in which is installed by check valve. There are two kinds of ball float collar: cement lining and aluminum alloy lining.

n: The casing float shoe in which is installed by check valve. There are two kinds of ball float shoe: cement and aluminum alloy.

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.