دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: The device controlling the position of rubber plug and guarranting the length of cement plug.

n: an accessory attached to the top of the casing to facilitate cementing of the casing. It has passages for cement slurry and retainer chambers for cementing wiper plugs. Also called retainer head.

n: The servicing unit installed in the top of casing string for cementing. It is installed with rubber plug and connected with cement injection line.

a device attached to the top of the casing that allows connection of the flush and cement lines and allows plugs to be dropped. Special models may allow the cement to be rotated during cementing.

n: The cementing head which can store one or two rubber plugs.

n: rubber plug that used in liner cement.

n: It be used to isolate the drilling fluid and slurry in the process of completion.