Mining or in situ disintegration of hard material – Tunnel recovery of fluid material
Patent
1983-12-19
1986-08-26
Suchfield, George A.
Mining or in situ disintegration of hard material
Tunnel recovery of fluid material
166 50, 166265, E21C 4110, E21B 4340
Patent
active
046078886
ABSTRACT:
A method for recovering a desired fluid hydrocarbon from an underground porous formation having a bottom impermeable to the fluid hydrocarbon and containing the hydrocarbon and at least one other fluid having a specific gravity different from the hydrocarbon, comprising the steps of forming an excavation having a portion thereof below the porous formation; forming a plurality of openings extending from the portion of said excavation into said porous formation; inserting collection means into the porous formation through the openings to separately collect the hydrocarbon and the at least one other fluid; collecting a quantity of the at least one other fluid; circulating the collected at least one other fluid from the porous formation to a point below the porous formation and at least one time back through the porous formation to wash the hydrocarbon therefrom and to form, in the porous formation, a pool of the hydrocarbon and a substantially separate layer of the at least one other fluid; regulating the height of the hydrocarbon collection means and the volume of the collected at least one other fluid in the porous formation to maintain the hydrocarbon collection means in fluid communication with the pool of hydrocarbon; collecting the hydrocarbon from the pool thereof; and conveying the collected hydrocarbon to the surface.
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Oakley W. Ray
Trent Robert H.
New Tech Oil, Inc.
Suchfield George A.
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