SELF-MOVING BORING DEVICE AND METHOD OF REMOVING METHANE GAS FROM SUBTERRANEAN COAL LAYER

FIELD: hydraulic boring technology. SUBSTANCE: boring device has at least one guiding nozzle for cutting fluid, driving means for moving the device having at least one outwardly faced nozzle oriented against direction of device movement at an angle in range between 0 and 30 degrees relatively to giv...

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Bibliographische Detailangaben
Hauptverfasser:	MEJER TIMOTI GREGORI GAMIL'TON, STOKVELL MEHTT'JU, TRUMAN ROBERT
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PHYSICS SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS TESTING
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Beschreibung
Zusammenfassung:	FIELD: hydraulic boring technology. SUBSTANCE: boring device has at least one guiding nozzle for cutting fluid, driving means for moving the device having at least one outwardly faced nozzle oriented against direction of device movement at an angle in range between 0 and 30 degrees relatively to given longitudinal axis, and drill pipe string made from elastic hose. With such device a special method of removing methane from coal layer can be used. In one variant method includes well-boring through the coal layer by means of hydraulic boring device, in another variant method includes forming of enclosure in a well near a coal layer and installing a well deflector in an enclosure for boring a well from an enclosure by means of said boring device for removing methane from the coal layer. EFFECT: increased effectiveness and productiveness of hydraulic boring device during degassing of coal layers. 3 cl, 10 dwg