Long-line-drive pattern for in situ gasification of subterranean

Details Long-line-drive pattern for in situ gasification of subterranean Long-line-drive pattern for in situ gasification of subterranean

1982-12-06

1984-07-24

Novosad, Stephen J.

Wells

Processes

Specific pattern of plural wells

166251, E21B 43243, E21B 4330

Patent

active

044613490

ABSTRACT:
A row of injection wells is widely separated from a parallel row of production wells by a plurality of rows of intermediate uncased column wells by means of which combustion links are established between the respective injection and production wells perpendicular to such rows. The pattern is ignited through a row of intermediate wells in order to prevent combustion from occurring directly beneath the injection wells. Means are also provided for shutting down the operation before the burn front reaches the production wells. In this manner, the danger of subsidence at both injection and production wells during operations is substantially eliminated.

REFERENCES:
patent: 3205942 (1965-09-01), Sandberg
patent: 3386504 (1968-06-01), Kunetka
patent: 3997005 (1976-12-01), Komar
patent: 3999607 (1976-12-01), Pennington et al.
patent: 4222437 (1980-09-01), Sabol
patent: 4306621 (1981-12-01), Boyd et al.

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