دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: the pressure in a well that exists between the casing and the tubing or the casing and the drill pipe.

n: See casing head pressure.

pressure (intended or not) that occurs on the various outside annuli.

n: Including the cemented condition of cement, casing and formation, isolation of oil, gas and water and cement top. Usually checked by bond log and casing pressure test.

n: see concurrent method.

n: A kind of well killing method of handling blowout. Increasing the weight of drill fluid and pumping it into the wellbore at the same time after well shuting in and requesting casing pressure. Completing well killing in a loop cycle.

n: A kind of well killing method handling blowout. Adjust the diameter of choke and keep casing pressure.

a method of killing a well where the choke is adjusted to maintain a constant casing pressure as the a water kick rises in the annulus. The method should not be used with a gas kick (will not keep a constant BHP).

n: a method of killing a well that has kicked, in which the choke size is adjusted to maintain a constant casing pressure. This method does not work unless the kick is all or nearly all salt water. If the kick is gas, this method pressure, because gas expands as it rises in the annulus. In any case, it is not a recommended well-control procedure.

n: a method of killing a well in which the mud level in the pits is held constant while the choke size is reduced and the pump speed slowed. It is not effective, and therefore is not recommended, because casing pressure increases to the point at which the formation fractures or the casing ruptures, and control of the well is lost.

n: A kind of well killing method. Keep fluid level of drilling fluid constant by decreasing the diameter of choke and slowing down speed of pump.

abbr: casing pressure or casing point;used in drilling reports.

casing pressure at depth – the true gas weight at depth.

n: a device installed on a gaslift mandrel, which in turn is put on the tubing string of a gas-lift well. Tubing and casing pressures cause the valve to open and close, thus allowing gas to be injected into the fluid in the tubing to cause the fluid to rise to the surface.