دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

abbr: altocumulus.

n: Generally The power is supplied by electric power net. The working machine is drived by AC motor. It belongs to the drilling rig which has no self-sustaining ability.

a precision sized micron particle material used for testing the solids stopping capability of filters.

n: the product of volts and amperes in an AC circuit when voltage and current are measured separately. If voltage and current are not in phase, apparent power is greater than true power.

exposed area of a pore or fracture to the volume of fluid in the pore or fracture.

n: the average of all the instantaneous values of current or voltage in one-half a cycle of AC electricity;equal to 0.636 times the maximum value.

n: a cylindrical tube placed around the retrieving neck of a retrievable bridge plug to catch debris or frac balls.

a cylinder at surface to catch ball sealers before the fluid is routed through the choke.

n: a technique in squeeze cementing in which (1) the zone below the producing interval is perforated and a high pressure squeeze carried out;(2) the zone the producing interval is perforated and squeezed off in a similar manner;(3) the hole is drilled out;and (4) the producing interval is perforated. The purpose of block squeezing is to isolate the producing interval and prevent communication with the sand immediately above and below the producing interval.

a cement squeeze into a area of perforations. Often done initially over the frac pressure.

cased hole frac pack.

n: a device for changing alternating current to direct current or vice versa;usually, if the device changes AC to DC, it is called a rectifier.