gas permeability of rocks

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• Permeability (earth sciences) — Permeability in the earth sciences (commonly symbolized as κ , or k ) is a measure of the ability of a material (typically, a rock or unconsolidated material) to transmit fluids. It is of great importance in determining the flow characteristics… …   Wikipedia

• Permeability — Permeability, permeable and semipermeable have several meanings:*Permeability (electromagnetism), the degree of magnetization of a material in response to a magnetic field *Permeability (earth sciences), a measure of the ability of a material… …   Wikipedia

• permeability — /perr mee euh bil i tee/, n. 1. the property or state of being permeable. 2. Also called magnetic permeability. Elect. a measure of the change in magnetic induction produced when a magnetic material replaces air, expressed as a coefficient or a… …   Universalium

• natural gas — a combustible mixture of gaseous hydrocarbons that accumulates in porous sedimentary rocks, esp. those yielding petroleum, consisting usually of over 80 percent methane together with minor amounts of ethane, propane, butane, nitrogen, and,… …   Universalium

• Shale gas — may also refer to gas generated from oil shaleShale gas is natural gas produced from shale. Because shales ordinarily have insufficient permeability to allow significant fluid flow to a well bore, most shales are not sources of natural gas. Shale …   Wikipedia

• Газопроницаемость — свойства вещества и в т. ч. горных пород пропускать газ благодаря наличию в них сообщающихся между собой пор или трещин. В свободных от воды порах и трещинах распространение газа происходит под влиянием разности давлений (эффузия) и Г. выражается …   Геологическая энциклопедия

• газопроникність гірських порід — газопроницаемость горных пород gas permeability of rocks, rocks permeability to gas *Gasdurchlässigkeit der Gesteine спроможність гірських порід при деякому перепаді тиску пропускати через себе газ. Розрізнюють абсолютну, фазову і відносну Г.г.п …   Гірничий енциклопедичний словник

• Well logging — Gamma ray logging Spontaneous potential logging Resistivity logging Density logging Sonic logging Caliper logging Mud logging LWD/MWD v · …   Wikipedia

• Klinkenberg correction — In petroleum engineering, a Klinkenberg correction is a procedure for calibration of permeability data obtained from a minipermeameter device. When using nitrogen gas for core plug measurements, the Klinkenberg correction is usually necessary due …   Wikipedia

• Sedimentary rock — Middle Triassic marginal marine sequence of siltstones (below) and limestones (above), Virgin Formation, southwestern Utah, USA Sedimentary rock are types of rock that are formed by the deposition of material at the Earth s surface and within… …   Wikipedia

• hydrofracturing — /huy dreuh frak cheuh ring/, n. a method of increasing the permeability of rocks penetrated by an oil or gas well by pumping in water and sand under pressure to open up cracks in the rocks. [1970 75; HYDRO 1 + FRACTURE + ING1] * * * …   Universalium