RS-31 Coalbed Methane in the Upper Cretaceous Fruitland Formation, San Juan Basin, New Mexico and Colorado

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Citation: Ayers, Jr., W. B., and W. R. Kaiser. “RS-31 Coalbed Methane in the Upper Cretaceous Fruitland Formation, San Juan Basin, New Mexico and Colorado.” Coalbed Methane. Resource Series. Denver, CO: Colorado Geological Survey, Department of Natural Resources, 1994.

Description

Structural stratigraphic and hydrologic setting of Upper Cretaceous Fruitland Formation, San Juan Basin, New Mexico and Colorado; coalbed methane resources production, pressure regimes, fracture patterns and gas composition. 216 pages. 168 tables. Digital PDF download. RS-31D

From the preface:
Coalbed methane is playing an increasingly important role in meeting the energy needs of the United States. According to one estimate, this unconventional gas may supply 4-5% of the domestic natural gas in 1994. In the San Juan Basin, Fruitland Formation coal beds contain an estimated 43 to 49 trillion cubic feet (Tcf) of methane. This basin is the most active area of coalbed methane development and production in the United States. This report discusses five areas that relate to controls on the occurrence or producibility of coalbed methane. The five areas include tectonic setting; depositional setting; fracture patterns; hydrology, thermal maturity, and gas composition; and integration of geologic and hydrologic studies.