A gas characterized by the basic equation of state, pV = nRT, where pressure , p, times volume, V, equals with moles of gas, n, times gas constant, R, times temperature, T. The units are subjective and are accommodated by the estimation of the gas steady R, which is diverse for each set of units.
A well utilized as a part of pumping water or gas into the reservoir.
Infinite acting reservoir
A reservoir with no apparent outer boundary limit affecting fluid flow during a test period. Unless an outer boundary, such as a nearby fault, is in close proximity to the well bore, it normally takes a day or more for outer boundaries to affect well-test results. Since most tests are of relatively short duration, outer boundaries usually do not affect test results.
A group of minerals and inorganic compounds made up of iron that is in +2 (ferrous) and +3 (ferric) valence states and oxygen in the -2 valence state, such as ferrous oxide, FeO, and ferric oxide, Fe2O3. Fe3O4 is a mixture of ferric oxide and ferrous oxide that commonly occurs in a fine-grained, magnetic crystalline form. Hematite, Fe2O3, the most common iron oxide, exists in several crystalline forms. Other forms of hematite are too abrasive to use as weighting material in drilling fluids.