دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n pi: a device, operated by air or hydraulic fluid, that fits into the opening in the rotary table when the drill stem must be suspended in the wellbore (as when a connection or trip is being made). Automatic slips, also called power slips, eliminate the need for roughnecks to set and take out slips manually. See slips.

n: A tool operated by pneumatics or hydraulic pressure.Used for chafing the drill stem when pipe connection or tripping.

n pi: a hand tool consisting of a handle and chain that resembles the chain on a bicycle. In general, chain tongs are used for turning pipe or fittings of a diameter larger than that which a pipe wrench would fit. The chain is looped and tightened around the pipe or fitting, and the handle is used to turn the tool so that the pipe or fitting can be tightened or loosened.

n: A tool used by roughnecks on the rig floor to tighten or loosen a connection. The tool consists of a long handle and an adjustable chain that will fit a variety of pipe sizes.

a type of hand or power operated wrench used to make up connections in pipe.

n: The men required to operate the drilling rig on one shift or tour. This normally comprises a driller, derrickman and two or three roughnecks.

n: a hydraulically powered device that can break out or make up tool joints and assure accurate torque. It is fitted with a repeater gauge so that the driller can monitor tool joints as they go downhole, doubly assuring that all have the correct torque. Sometimes called an Iron RoughneckTM, after the manufacturer of one such wrench.

n: an hydraulic pressure operational assembly that go up and down the pipe and assure exactly torque.

n: a piece of the rig-floor equipment that can be used to make connections and is automatically controlled.

a pipe connection device that sits on the rig floor or is suspended just above the floor. It combines lead and backup tongs with a integral spinning table to spin the top joint during make-up or break-out.

n: a manufacturers name for a floor-mounted combination of a spinning wrench and a torque wrench. The Iron Roughneck moves into position hydraulically and eliminates the manual handling involved with suspended individual tools.

n: crotch that the roughneck uses to grasp the drilling volume when triping.

n: a worker on a drilling or workover rig, subordinate to the driller, whose primary work station is on the rig floor. On rotary drilling rigs, there are at least two and usually three or more rotary helpers on each crew. Sometimes called floorhand, floorrnan, rig crewman, or roughneck.

n: see rotary helper.

n: an employee of a drilling contractor who works on the drill floor under the direction of the driller.

a member of the rig crew.