Wells – Processes – Heating – cooling or insulating
Patent
1983-12-27
1985-08-13
Suchfield, George A.
Wells
Processes
Heating, cooling or insulating
166 97, 166308, 166311, 166312, E21B 3600, E21B 4326
Patent
active
045344132
ABSTRACT:
The invention is directed to the stimulation of water flow into a substantially dry well shaft from adjacent rock and soil strata bearing water supplies by developing passages from such water supplies through the well walls. Liquid or gaseous nitrogen and liquid or gaseous carbon dioxide are introduced into the well either individually or in combination and alternately pressurized and depressurized to cause the rock structure between said well wall and said water supplies to be exposed to high pressures and fractured to thereby open a passage from said water supplies to said well. A well cap is provided to seal the well and retain the pressure developed therein while providing for the introduction of the required materials. Means are also provided to release the pressure in the well quickly to return same to its unpressurized condition.
REFERENCES:
patent: 2157085 (1939-05-01), Records
patent: 2811209 (1957-10-01), Elkins
patent: 3108636 (1963-10-01), Peterson
patent: 3200882 (1965-08-01), Allen
patent: 3331206 (1967-07-01), Osborne
patent: 3602310 (1971-08-01), Halbert
patent: 3612183 (1971-10-01), Shillander
patent: 3930539 (1976-01-01), Curtis
patent: 4250965 (1981-02-01), Wiseman, Jr.
Suchfield George A.
Teschner David
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