دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

a device that injected balls into the flowing treating fluid downstream of the high pressure pump.

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: see flex joint.

n: a hollow drum that contains material to be ground or pulverised, heavy steel or ceramic balls, and a liquid such as water. The drum is rolled or agitated so that the balls crush or polish the material as they roll about.

mechanical device activated by pumping a ball of a certain size down the tubing in the injected or circulated fluid.

n: The assemblage opening in palm journal of cone bit. The weld line after cone ball is installed and the ball retaining plug is inserted.