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Matches 1 - 16 out of 16

Document	Document Title
5875858	Low volume air-water drilling systems and methods An air-water mist flushing system and method for cooling and cleansing mining tool cutter elements having sources of water and compressed air, apparatus for admixing water and compressed air at predetermined volumes and pressures to form...
5139095	Method for removing debris from a drillhole A method for removing debris from a drillhole, includes positioning a separator adjacent to a down-the-hole percussive drillhead, for removing water and other matter from the percussive fluid prior to the percussive fluid entering the dr...
RE29151	Repulsing clays on drill bits Bit balling is prevented by impressing a negative electrical charge on the drill bit by the use of bi-metallic electromotive potential differences, batteries or other electrical energy sources.
3818996	REPULSING CLAYS ON DRILL BITS Bit balling is prevented by impressing a negative electrical charge on the drill bit by the use of bi-metallic electromotive potential differences, batteries or other electrical energy sources.
3495665	WELL SERVICING METHODS UTILIZING A FOAMED HYDROPHOBIC LIQUID
3495664	PNEUMATIC WELL DRILLING
3308894	Monitoring system for gaseous fluid drill boreholes
3111999	Product and method for removing oilbrine mixtures from wells
3111998	Foam or mist drilling process
3022824	Method and composition for cementing wells
2999551	Method of air drilling
2818231	Method of drilling with air
2738163	Rotary drilling method
2729426	Method of drilling
2510300	Rock coring method
2469354	Production of oil

Matches 1 - 16 out of 16