Production of bitumen by steam injection

Details Production of bitumen by steam injection Production 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

Patent

active

039602133

ABSTRACT:
A method of producing bitumen from a subterranean tar sand formation by the following multi-step method. First, an injection well is drilled to the formation and extended into the formation. Subsequent thereto, a perforated liner is inserted into the injection well extending the entire length thereof and having the perforations provided in the portion of the injection well in contact with 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.

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