دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

yield point, the point at which a fluid shears.

stream function or value of a streamline.

acoustic impediance.

A kind of dimensionless number ,which be used to judge the flowing shape of power law liquid.

the compressibility correction index used in the ideal gas law. Z = Vactual / V ideal

n: hydrated silicates of aluminum with alkali metals.

a reactive class of minerals often associated with clay damage.

n: a special fitting on equipment that accommodates a similar fitting on a grease gun. The zerk allows grease to be injected, but forms a seal to prevent the entry of dirt into the equipment when the gun is removed.

v: to bring a differential pen to the zero point on an orifice chart.

The point that its axial stress of drilling string equal to zero.