دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: the treatment of a producing well with heated oil to melt accumulated paraffin in the tubing and the annulus.

high pressure, low temperature. Identification of the problem zone for hydrate formation.

abbr: health, safety, and environment.

health, safety and environment.

n: a surge of engine speed to a higher number of revolutions per minute (rpm),followed by a drop to normal speed without manual movement of the throttle. It is often caused by a faulty or improperly adjusted governor.

n: an announcement warning that hurricane-force winds are in the area and advising inhabitants in that area to seek shelter.

n: the valid hydraulic power that transmit from drilling pump to drilling bit ,it equal to the amount that the pressure reduction of drilling fluid pass by bit multiple by its discharge volume.

n: force resulting from pressure on water or other hydraulic fluid.

n: the force exerted by a column of liquid expressed by the height of the liquid above the point at which the pressure is measured. Although head" refers to distance or height, it is used to express pressure, since the force of the liquid column is directly proportional to its height. Also called head or hydrostatic head. Compare hydrostatic pressure.

n: The force per unit area exerted by a column of liquid at a height above a depth (and pressure) of interest. Fluids flow down a hydraulic gradient, from points of higher to lower hydraulic head. The term is sometimes used synonymously with hydrostatic head

pressure exerted by a column of liquid.

a snubbing job in which the well is workover without killing the well with fluid. Usually accomplished by multiple barriers that seal on the tubulars.

a manufacturer of BOP and other well equipment. Also a common term for a section of the BOP stack that utilizes a large rubber “donut” that can seal on irregular surfaces or even on itself.