دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

the minimum flow rate to produce liquids from a well.

a minimum velocity to lift liquids in gas flow.

n: Bringing out the photoplate from the single shot inclinometer without darkroom or black bag in the daytime.

the gas injection pressure available for unloading fluids from a gas lifted well down to the last valve.

n: a large, usually flat-bottomed, barge used in unloading or loading ships. v: to convey by a lighter.

the small movement in a newly fractured formation that results from the formation unloading build in streses.

n: see circulation valve. unloading a well n: removing fluid from the tubing in a well, often by means of a swab, to lower the bottomhole pressure in the wellbore at the perforations and induce the well to flow.

lightening of a fluid column, usually by adding gas, until the fluid flows out of the well.

n: a special circulation valve that provides a way of equalizing tubing and annulus pressure. See also circulation valve.

generally a downhole valve that, when opened, permits circulation.