دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

a correction factor for the Darcy Equation to account for changes in pressure and fluid saturation along a fracture.

n: one of the extremely small particles, sometimes called rays, emitted from the nucleus of a radioactive substance such as radium or uranium as it disintegrates. Beta particles have a negative charge.

an electron emitted with high energy and velocity from a decaying nucleus.

a conditional ratio requirement on a filtering system that compares the number of particles of a certain size in the unfiltered and filtered fluid. A beta rating of 1000 at 5 microns means that there is one particle of 5 micron or greater size in the filt

n: (b) measure of the relationship of the size of the pipe through which fluid is flowing and the size of a restriction, such as an orifice.

the returning wave of gravel after the alpha wave when packing a well over about 55o deviation.

n: one of a pair of toothed wheels whose working surfaces are inclined to nonparallel axes.

base flange elevation.

abbr: barrels of fluid per hour;used in drilling reports.

big hole charge.

bottom hole.