18 July 2017

Abnormal pressure

Abnormal pressure is a term used to describe pressures that might exist in wellbores that are greater than an expected, naturally occurring hydrostatic pressure.
18 July 2017

Absolute permeability

A measure of the ability of a single fluid (such as water, gas, or oil) to flow through a rock for mation when the formation is […]
18 July 2017

Absolute porosity

The percentage of the total bulk volume of a rock sample that is composed of pore spaces or voids. See porosity.
18 July 2017

AC drive

An AC drive is a system for controlling the rotational speed and/or torque of an alternating current (AC) electric motor by controlling the frequency of the […]