دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: anything that destroys bacteria.

n: The additive used to kill the bacterias in drilling fluid.

a product that kills bacteria in the water or on the surface of the pipe.

choke and kill line.

ClO2, a free radical compound especially useful in killing bacteria in waters. It is a powerful biocide that dissolves biomass cell walls. It is nearly impossible for bacteria to develop immunity against ClO2.

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: low-solids fluid or drilling mud used when a well is being completed. It is selected not only for its ability to control formation pressure, but also for the properties that minimise formation damage.

n: A special drilling mud used when a well is being competed. It is selected not only for its ability to control formation pressure, but also for its properties that minimize formation damage.

a brine, oil or gas based fluid that is used as isolation (kill, separation, inhibition functions, etc.) fluid during the completion of a well. Commonly sea water, NaCl brine, formation water, KCl brine, CaCl2 brine, etc. Oil based fluids are common where

n: a method for killing well pressure in which circulation is commenced immediately and mud weight is brought up in steps, or increments, usually a point at a time. Also called circulate- andweight method.

n: See circulate-and-weight method.

a well pressure control operation in which circulation is started immediately and mud density is brought up in steps until the well has been completely circulated to the kill weight fluid.

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.