Method of subterranean steam generation by in situ combustion of coal

This specification discloses a method of recovering the thermal energy of a subterranean coal formation that is penetrated by at least two wells. The subterranean coal formation is fractured by hydraulic fracturing techniquesto form at least two spaced apart fractures which extend through the coal f...

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Bibliographische Detailangaben
Hauptverfasser:	STRUBHAR, MALCOLM K
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS GEOTHERMAL COLLECTORS GEOTHERMAL SYSTEMS HEATING LIGHTING MECHANICAL ENGINEERING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS RANGES REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE VENTILATING WEAPONS
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