Arrangement of wells for producing subsurface viscous petroleum

Details Arrangement of wells for producing subsurface viscous petroleum Arrangement of wells for producing subsurface viscous petroleum

1980-02-27

1981-12-01

Novosad, Stephen J.

Wells

Processes

Specific pattern of plural wells

166 50, 166272, E21B 4324, E21B 4330

Patent

active

043031269

ABSTRACT:
A method is disclosed for recovering viscous crudes from petroleum-containing formation, such as tar sand deposits, which are too deep to mine economically but not deep enough, or geologically not structured properly, to successfully hydraulically fracture for well to well production. The method contemplates a field grid layout of sets of injection and production wells and a subsurface generally horizontal heated tubular member passing through the subsurface petroleum-containing formation. Heated fluids are circulated through the tubular members to heat the viscous crudes in the vicinity of the tubular members and a heated drive fluid is injected through the injection wells to move heated crude toward the production wells.

REFERENCES:
patent: 2841375 (1958-07-01), Salomonsson
patent: 3017168 (1962-01-01), Carr
patent: 3256935 (1966-06-01), Nabor et al.
patent: 3338306 (1967-08-01), Cook
patent: 3960213 (1976-06-01), Striegler et al.
patent: 3994340 (1976-11-01), Anderson et al.
patent: 4037658 (1977-07-01), Anderson
patent: 4089373 (1978-05-01), Reynolds et al.

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