A project jointly funded by Mountain Fuel Supply Company and the U.S. Department of Energy is being conducted to show the commercial potential of recovering methane gas from deep coal seams in the Book Cliffs coal field in Central Utah. Recovery technologies are being defined and economic analyses of methane recovery are being made. Three vertical wells have been drilled to depths ranging between 3,000 and 4,110 feet. Desorption measurements on core samples indicate gas contents up to 440 cu ft/ton. All three wells have been subjected to hydraulic stimulation treatments but with drastically different results. One well has demonstrated gas production of 20 to 30 mcfd from a 13-foot coalbed. A second well was extremely "tight" and very little production has been achieved to date. The third well has not been put on continuous production, but gas production rates of 120 mcfd averaged over a short testing period were measured.

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