دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

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 permits flow in one direction only. If the gas or liquid starts to reverse, the valve automatically closes, preventing reverse movement. Commonly referred to as a one-way valve.

n: A valve that permits flow in one direction only.

a valve that only allow flow in one direction.

n: A one way valve installed at the bottom of drill pipe and above drill bit. Allowing drill fluid flowing from top to bottom in drill pipe.

check valve.

n: a check valve installed in the drill stem that allows mud to be pumped down the drill stem but prevents flow back up the drill stem. Also called a float.

n: a non-return valve joined in the pipe , it can only let the fluid into the bottom of the well from the drill pipe but cant let the fluid return into the dill pipe from the bottom

n: a check valve in the drill string that will allow fluid to be pumped into the well but will prevent flow from entering the string.

n: refer todrill pipe float