Block pattern method for in situ gasification of subterranean ca

Details Block pattern method for in situ gasification of subterranean ca Block pattern method for in situ gasification of subterranean ca

1982-12-06

1984-11-06

Novosad, Stephen J.

Wells

Processes

Specific pattern of plural wells

166256, E21B 43243, E21B 4330, E21C 4300

Patent

active

044806892

ABSTRACT:
Any desired number of alternate parallel rows of injection and production well bores are positioned to establish a block gasification pattern. Combustion links are established between adjacent injection and production well bores in a direction generally perpendicular to said rows. The block pattern is ignited simultaneously through all of the injection well bores such that the pattern is gasified along the multiple linking paths in both directions between each injection well bore and its adjacent production well bores. In this manner the entire area of deposit defined by the block pattern is gasified simultaneously and may be separated from other similar block patterns by a barrier, thereby eliminating the problem of direct contact with burned-out areas.

REFERENCES:
patent: 2777679 (1957-01-01), Ljungstrom
patent: 2841375 (1958-07-01), Salomonsson
patent: 3999607 (1976-12-01), Pennington et al.
patent: 4306621 (1981-12-01), Boyd et al.

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