دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

The equivalent mud weight felt by the formation when circulating with a certain mud weight and holding a backpressure. A 10 lb/gal mud in a 10,000 ft well with 1000 psi backpressure would generate an equivalent mud weight of about 11.9 lb/gal.

n: the process by which material (such as rock or soil) is worn away or removed (as by wind or water).

progressive loss of material from a solid surface due to mechanical interaction between that surface and a fluid, a multicomponent fluid or solid particles carried within the fluid (NACE).

n: the closeness of the agreement between the results of successive measurements of the same quantity carried out by the same method, under the same environment, by the same observer, with the same measuring instruments, in the same laboratory, at quite short intervals.

exploration sub salt.

n: a coastal indentation or bay into which a river empties and where fresh water mixes with seawater. Compare marine delta.

expected ultimate recovery from a field.

a mixture of substances having a minimum solidification/melting point.

n: When increasing the concentration of salt in a brine, the temperature at which crystals come out of solution at first lowers. At a certain point, addition of more salt will cause this crystallization point temperature to increase. This point, the lowest t

n: a sedimentary rock formed by precipitation of dissolved solids from water evaporating in enclosed basins. Examples are gypsum and salt.

a formation formed by the evaporation of water from shallow seas. Very low permeability.

n: a fibrous material used as a filtering element in heaters or heatertreaters.