دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a hoist operated by compressed air;a pneumatic hoist. Air hoists are often mounted on the rig floor and are used to lift joints of pipe and other heavy objects.

n: controls, usually located near the drillers position on the rig floor, that are manipulated to open and close the blowout preventers. See blowout preventer.

n: (slang, obsolete) the work station of an inexperienced rotary helper, on the opposite side of the rotary from the rotary helper who sets pipe back on the rig floor during trips.

n: (slang) any large fan installed on a drilling rig or production facility to move large quantities of air across the rig floor or other area.

n: Slang. Refers to the electric fan installed near drill rig, used to dispel mosquito in the workspace.

n: a spool-shaped attachment on the end of the catshaft. around which rope for hoisting and moving heavy equipment on or near the rig floor is wound. See break- out cathead, makeup cathead.

n: A spool-shaped extension of the drawworks shaft used to lift heavy equipment around the rig and make-up or break-out the drill pipe.

n: the maximum lawful price that may be charged for the first sale of a specified NGPA category of natural gas. cellar n: a pit in the ground, usually lined with concrete, steel pipe, or wood, that provides additional height between the rig floor and the wellhead to accommodate the installation of blowout preventers, rathole, mousehole, and so forth. It also collects drainage water and other fluids for subsequent disposal.

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: a panel or board on the rig floor, usually near the drillers position, that allows a person to remotely adjust the size of the opening of a choke installed in the choke manifold. By adjusting the chokes opening, the operator can increase or decrease the amount of back-pressure being held on the well by the choke. Usually, the panel also has pressure gauges and other instruments to help the operator control the well.

n: also called the rig floor or the drill floor. See rig floor.

n: The metal floor used for borers operating floor, installed on derrick base.

n: A small enclosure on the rig floor used as an office by the driller and as a storage place for small items.

a crew or records shack at a lease or on a rig.