Recovery of bitumen by steam injection

Details Recovery of bitumen by steam injection Recovery of bitumen by steam injection

1975-06-06

1976-06-01

Novosad, Stephen J.

Wells

Processes

Distinct, separate injection and producing wells

166 50, E21B 4324, E21B 33138

Patent

active

039602141

ABSTRACT:
A method of recovering bitumen from a subterranean tar sand formation by the following multi-step method. First, an injection well is drilled to the formation and cased. Perforations are provided in the portion of the injection well contacting the formation. Next, a plurality of production wells are drilled and completed into the formation positioned above and along the length of the injection well. Thereafter, a heated fluid is circulated through the injection well contacting the formation via the perforations and thereby reducing the viscosity of the bitumen contained therein rendering same mobile. Subsequently, the mobilized bitumen is recovered through the plurality of production wells.

REFERENCES:
patent: 1816260 (1931-07-01), Lee
patent: 2874777 (1959-02-01), Tadema
patent: 2906337 (1959-09-01), Hennig
patent: 3017168 (1962-01-01), Carr
patent: 3396791 (1966-09-01), Meurs et al.
patent: 3682244 (1972-08-01), Bowman et al.

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