FIELD: mining industry. SUBSTANCE: method includes drilling of borehole down to its crossing with coal seam with later gas-tight taking a coal sample with gas-and-core lifter and measurement of temperature of seam. Seam pressure is determined by solution of quantity equation establishing interdependence between natural-bearing capacity determined under laboratory conditions and gas pressure in coal seam. EFFECT: facilitated analysis of methane content in coal seam.
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Authors
Dates
1994-02-15—Published
1991-07-08—Filed