Mining or in situ disintegration of hard material – Tunnel recovery of fluid material
Patent
1981-10-01
1984-07-10
Purser, Ernest R.
Mining or in situ disintegration of hard material
Tunnel recovery of fluid material
166 50, 166 77, 299 19, 299 12, E21C 4110
Patent
active
044589450
ABSTRACT:
New and improved techniques, systems and equipment for the practical underground mining of petroleum from both virgin and depleted oil fields under certain geological conditions, are described. A method of drilling relatively small diameter, drainage-type oil wells using a fluid and cutting control assembly from within an access underground drilled tunnel, is provided. The fluid and cutting control assembly facilitates the safe underground drilling and installation of the small diameter, drainage-type oil wells which can be operated either under the natural pressures occurring in the geological strata, as gravity drain wells or by suitable secondary treatment measures artificially pressurized to facilitate drainage of oil from oil bearing strata into which such wells are drilled. Techniques and equipment to facilitate the safe drilling of such wells, placing them into production and thereafter controlling operation of the mine workings in a safe and reliable manner, is described, together with the control system, sensors and other equipment required for safe installation and operation of an underground petroleum mine.
REFERENCES:
patent: 1722679 (1929-07-01), Ranney
patent: 1884859 (1932-10-01), Ranney
patent: 2193219 (1940-03-01), Bowie et al.
patent: 2989294 (1961-06-01), Coker
patent: 4165903 (1979-08-01), Cobbs
Ayler Maynard F.
Vranesh George
Helzer Charles W.
Purser Ernest R.
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