Five vertical methane drainage boreholes have been completed in the Jawbone coalbed at the Clinch-field Coal Co. McClure No. 1 mine in Dickenson County, Va. Foam stimulation treatments were used to increase gas production from the boreholes. After 15 months the cumulative gas production from the first hole was 310,000 cu m (11 MMcf) with production averaging 700 cu m/d (25.000 cu ft/d).

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