Results 221 to 230 of about 16,647 (260)
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Coalbed Methane Potential of the Appalachians
SPE Unconventional Gas Recovery Symposium, 1982ABSTRACT Coal mines in the Appalachian Basin emit approximately 180 million cubic feet (MMcf) of high-quality methane into the atmosphere daily. The existence of mines in West Virginia, southwest Virginia, eastern Kentucky, Ohio, Pennsylvania, Tennessee, and Alabama with high gas emissions of over 100 thousand cubic feet per day (Mcf/d ...
Margaret A. Adams +2 more
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Coalbed Methane - A Decade of Success
SPE Annual Technical Conference and Exhibition, 1994Abstract Between 1983 and 1993, the coalbed methane (CBM) industry changed from a high cost operation to a competitive main line gas resource. In 1983, there were approximately 165 coalbed methane wells in the United States with an estimated total annual production of 6 BCF.
R. A. Schraufnagel +2 more
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The Sedimentary Control of Accumulation of Coalbed Methane in Hancheng Coalbed Methane Field
Applied Mechanics and Materials, 2013This paper discusses how sedimentary controls on accumulation of coal and coalbed methane in Hancheng CBM field. Two major coal-bearing strata include the Upper Carboniferous Taiyuan formation (a marine and terrestrial sedimentation) and the Lower Permian Shanxi formation (a terrestrial sedimentation).
Ying Li +5 more
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FROM COALBED METHANE TO COALBED TECHNOLOGY
Mineral Resources Engineering, 1995The concept of “Coalbed Technology” (CBT) is introduced. CBT consists of various technologies related to energy recovery from coalbeds and multi-purpose use of coalbeds. These technologies consist of surface coal mining, underground coal mining, gas drainage, coalbed methane, underground coal gasification, underground coal combustion, underground coal ...
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International Journal of Coal Geology, 2012
Abstract The commercial extraction of methane from coal beds is now well established in a number of countries throughout the world, including the USA, Australia, China, India and Canada. Because coal is almost pure carbon, its reservoir character is fundamentally different to conventional gas plays. Coalbed methane (CBM) forms as either biogenically-
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Abstract The commercial extraction of methane from coal beds is now well established in a number of countries throughout the world, including the USA, Australia, China, India and Canada. Because coal is almost pure carbon, its reservoir character is fundamentally different to conventional gas plays. Coalbed methane (CBM) forms as either biogenically-
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Enhanced Coalbed Methane Recovery
SPE Annual Technical Conference and Exhibition, 1990Abstract At present, coalbed methane is being recovered by means of reservoir pressure depletion. While this method is simple and effective, it is not efficient. Reduction in reservoir pressure deprives the fluids of the energy necessary to flow to the wellbore.
D. Yee, R. Puri
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1996
Coal-forming environments have waxed and waned in extent since the mid-Paleozoic, having been associated with a restricted range of environments and hydrologic regimes during relatively brief geologic timespans. The three major episodes of coal genesis were the late Carboniferous and Permian, the late Jurassic through early Cretaceous, and the late ...
William E. Galloway, David K. Hobday
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Coal-forming environments have waxed and waned in extent since the mid-Paleozoic, having been associated with a restricted range of environments and hydrologic regimes during relatively brief geologic timespans. The three major episodes of coal genesis were the late Carboniferous and Permian, the late Jurassic through early Cretaceous, and the late ...
William E. Galloway, David K. Hobday
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Methane Recovery And Utilization From Coalbeds
SPE Annual Technical Conference and Exhibition, 1979Abstract Unconventional sources of natural gas already provide over 0.03 Tm3 (1 Tcf) annually to the domestic gas provide over 0.03 Tm3 (1 Tcf) annually to the domestic gas production and could ultimately provide a much larger production and could ultimately provide a much larger share of the natural gas supply. The
Craig T. Rightmire, Robert L. Wise
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State-of-the-Art in Coalbed Methane Drilling Fluids [PDF]
SPE Drilling & Completion, 2006 Summary The production of methane from wet coalbeds is often associated with the production of significant amounts of water. While producing water is necessary to desorb the methane from the coal, the damage from the drilling fluids used is difficult to assess, because the gas production follows weeks to months after the well is drilled.
Brent K. Warren +2 more
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Coalbed methane extraction and utilization
Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, 2003Coalbed methane (CBM) is the generic name for all methane of coal seam origin. It is a natural gas formed by geological, or biological, processes in coal seams and generally consists predominantly of methane, but may also contain some higher alkanes and non-combustible gases.
H Tilley, D Creedy
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