دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

the volume a solid occupies when added to a fluid divided by its weight. m3/kg or gal/lb.

n: states that the volume occupied by a mixture of gases equals the sum of the volumes each gas would occupy at the pressure and temperature of the mixture.

n: an instrument for measuring wind speed in the atmosphere. The most common types are cup, vane, and hot-wire anemometers.

a solid hanger or test cup in a BOP. A retrieval plug attached to drill pipe. An inexperienced worker.

proportion of capillary bound fluids occupying effective porosity.

n: a pressure or adhesive force caused by the surface tension of water. This pressure causes the water to adhere more tightly to the surface of small pore spaces than to larger ones. Capillary pressure in a rock formation is comparable to the pressure of water that rises higher in a small glass capillary tube than it does in a larger tube.

n: The pressure or adhesive force produced by surface tension of water.

pressure differential between two immiscible fluid phases occupying the same pores caused by interfacial tension between the two phases that must be overcome to initiate flow.

n: A tool for tight test of casing. See cup tester.

n: water retained in the pore spaces, or interstices, of a formation from the time the formation was created. Compare interstitial water:

n: Water trapped within sedimentary deposits, particularly as hydrocarbons displaced most of the water from a reservoir.


the natural brine occupying the pore spaces. Usually this water is at equilibrium with the minerals in the formation.

n: The catcher consisted by cup spring base and leaf springs.

n: The hollow part of shoulder of drill adapter due to pendulum.