دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: Press the cylindrical core sample put between the teeterboards of compression testing machine with axial force till breakdown. Records the alternation value of stress and deflection and draw the curve and requires compressive resistance of the rock.

n: a reaction in which gamma rays with intermediate energy levels (0.6 to 2.5 million electron volts) lose their energy by colliding with orbital electrons.

n: (CPC) centralised computer control for a completely automated lea.c;e or multilease operation.

a multiple completion in which the upper zone flows to the surface through the annulus formed by the casing and the deeper zone tubing. Usually used only in sweet, dry gas upper completions.

n: a rigid offshore drilling platform built of steelreinforced concrete and used to drill development wens. The platform is floated to the drilling site in a vertical position. At the site, one or more tall caissons that serve as the foundation of the platform are flooded so that the platform comes to rest on bottom. Because of the enormous weight of the platform, the force of gravity alone keeps it in place. See platform rig.

n: 1. the ability to transmit or convey (as heat or electricity). 2. an electricallogging measurement obtained from an induction survey, in which eddy currents produced by an alternating magnetic field induce in a receiver coil a voltage proportionate to the ability of the formation to conduct electricity. See induction log.

n: Measure of the quantity of electricity transferred across unit area per unit potential per unit time. It is the reciprocal of resistivity. Electrolytes may be added to a fluid to alter its conductivity.

n: locking of a cone on a roller cone bit so that it will not turn when the bit is rotating. Cone skidding results in the flattening of the surface of the cone in contact with the bottom of the hole.

n: The phenomenon that the cone of bit is freezed in.