دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: The cloth on the top of slim mud desander or multilayer mud desander.

n: The short casing joint that connecting the last casing and cement head.

n: (TDC) the position of a piston when it is at the highest point possible in the cylinder of an engine;often marked on the flywheel. the drill stem and bit, the top-drive system retains it to provide a place to set the slips to suspend the drill stem when drilling stops.

n: a device similar to a power swivel that is used in place of the rotary table to turn the drill stem. It also includes power tongs. Modem top drives combine the elevator, the tongs, the swivel, and the hook. Even though the rotary table assembly is not used to rotate the drill stem and bit, the topdrive system retains it to provide a place to set the slips to suspend the drill stem when drilling stops.

a rig with the pipe rotation mechanism in the traveling block section. Usually does not use a Kelly.

n: A device that turns the drillstring. It consists of one or more motors (electric or hydraulic) connected with appropriate gearing to a short section of pipe called a quill, that in turn may be screwed into a saver sub or the drillstring itself. The topdri

n: a mechanism, located at the top of the working barrel, for anchoring a sucker rod pump to the tubing. Compare bottom hold-down.

n: It give sticked drill string a upward beating ,then free the sticked drill string.

a cement repair job done by running a tube down an annulus and cementing to surface.

n: A kind of ways that injecting drill fluid into the annular or wellbore,which be used to control overflow and blowout.


a dynamic kill procedure, used in low pressure wells, good for a short period of time. A typical top kill is to pump 5 bbl of fluid in the tubing, offsetting the tubing pressure as the fluid falls. The well must be monitored for pressure or flow and the p