FIELD: mining, particularly to remove methane from coal beds.
SUBSTANCE: method involves drilling down-dip nearly horizontal well and inclined well from ground surface in coal bed; casing well up to coal bed; connecting horizontal drilled channel with uncased part of inclined well with the use of navigation systems and at final stage by performing directional hydraulic fracturing through inclined well; drilling several down-dip horizontal bores from uncased bore of nearly horizontal well.
EFFECT: increased coverage of inclined coal bed by accordant well pair connected with each other by horizontal drilled channel.
2 cl, 2 dwg
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