دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a wire rope that has been flattened and the strands of which have been spread. v: to flatten and spread the strands of a wire rope.

n: the tendency of the bit to move other than vertically, caused by an interaction between the rotation of the bit and the varying resistance of the formation being drilled.

n: a substance of dark to black colour consisting almost entirely of carbon and hydrogen with very little oxygen, nitrogen, or sulphur. Bitumens occur naturally and can also be obtained by chemical decomposition.

pyrogeneous, essentially non reactive, hydrocarbon. Most bitumen is not considered as movable through the reservoir under normal conditions of flow unless heated.

a soft coal, intermediate in coal development, containing 15 to 20% volatiles.

n: liner with no perforations. blank off v: to close off (as with a blank flange or bull plug).

n: a gas phase above a liquid phase in a vessel. It is placed there to protect the liquid from contamination, to reduce the hazard of detonation, or to pressure the liquid. The gas has a source outside of the vessel.

v: to drain off liquid or gas, generally slowly, through a valve called a bleeder. To bleed down, or bleed off, means to release pressure slowly from a well or from pressurised equipment.

n: a pipe through which pressure is bled, as from a pressurised tank, vessel, or other pipe.