Improved Methods of F o n i t o r i n g Water Production General Method of Removing and Measuring Gas. .

Five vertical methane drainage boreholes have been completed in the Jawbone coalbed at the Clinchfield 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 mid (25.000 cu ft/d).