دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: See cementing.

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: A kind of afflux pipe with several imports and valves, used for cementing and connecting several cement injection lines. Controlling pressure and circulating rate and sending cement slurry to cement head.

isolating a cement injection site between a packer and a plug prior to squeezing.