دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: Schlumberger wireline tool that measures phase shift and attenuation of a 1100 MHz wave. Used for Hydrocarbon identification independent of formation water salinity, thin bed detection, Hydrocarbon saturation and mobility and to evaluate invaded zones.

n: a part made of coils of wire placed around a metal core, in which electric current is induced in a generator, or in which input current interacts with a magnetic field to produce torque in a motor.

in a horizontal plane, it is the angle (measured clockwise) of well path departure usually from true or magnetic north. It may also be expressed as the compass direction of the path of the well bore as measured by a borehole survey. (Note: check the speci

n: voltage induced in the armature of a motor by the magnetic field in which it is turning. Also called counter emf. See electromotive force.

n: The logging trace formed by collar locator device measuring the position of casing collar.

CCL, a downhole log recording, given by magnetic deflection, of the location of couplings or other equipment.

uses eddy currents in a magnetic field to estimate casing thickness and anomalies.

n: A logging device for depth-correlation purposes, operated mechanically or magnetically to produce a log showing the location of each casing, tubing collar, or coupling in a well. It provides an accurate way to measure depth in a well.