دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a device placed in the cementing head and run down the casing in front of cement to clean the mud off the walls of the casing and to prevent contamination between the mud and the cement.

n: See cementing head.

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: see cementing head.

n: the auxiliary equipment connected on the top of casing when pumping the cement.

n: see cementing head.

n: It permit csaing rotate,which is benefit to fill up the entire annular between casing and hole.

n: a device placed in the cementing head and run down the casing behind cement to clean the cement off the walls of the casing and to prevent contamination between the cement and the displacement fluid.

n: It located between the drill fluid and slurry,which be used to clear the slurry on the surface of pipe ,and prevent drill fluid polluting slurry.