دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a device that permits or arrests a flow of liquid from a receptacle or through a pipe, faucet. tap, or stop valve.

n: an uncontrolled flow of gas, oil, or other well fluids into the atmosphere. A blowout, or gusher, occurs when formation pressure exceeds the pressure applied to it by the column of drilling fluid. A kick warns of an impending blowout. See kick.

an uncontrolled release of fluids from a well.

n: one of several valves installed at the wellhead to prevent the escape of pressure either in the annular space between the casing and the drill pipe or in open hole (i.e., hole with no drill pipe) during drilling or completion operations. Blow- out preventers on land rigs are located beneath the rig at the lands surface;on jackup or platform rigs, at the waters surface;and on floating offshore rigs, on the seafloor. See annular blowout preventet;ram blowout preventer:

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: a device that stores hydraulic fluid under pressure in special containers and provides a method to open and close the blowout preventers quickly and reliably. Usually, compressed air and hydraulic pressure provide the opening and closing force in the unit. See blowout preventer. Also called an accumulator.

n: a training procedure to determine that rig crews are familiar with correct operating practices to be followed in the use of blowout prevention equipment.

n: See blowout preventer control unit.

a conditional surface pressure barrier often consisting of a set of hydraulically operated rams containing equipment designed to grip pipe, seal around pipe, shear off pipe or seal an open hole during drilling or a workover. It may also contain an annular