Underground coal gasification - applies radially travelling gasification front

An underground in situ gasification system for coal seams is based on a central extraction borehole which is surrounded by a ring of injection boreholes for the gasifying agent. The gasification channel extends from a first injection borehole to the central and from an adjoining to the first injecti...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	WENZEL,WERNER,DR, GUDENAU,H.W.,DR, MOHTADI,MEHRDAD,DR, FRANKE,F.H.,DR
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING MINING OR QUARRYING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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