04303126 is referenced by 202 patents and cites 8 patents.

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.

Title
Arrangement of wells for producing subsurface viscous petroleum
Application Number
6/125069
Publication Number
4303126
Application Date
February 27, 1980
Publication Date
December 1, 1981
Inventor
Theodore R Blevins
Los Alamitos
CA, US
Agent
G W Wasson
R L Freeland Jr
J A Buchanan Jr
Assignee
Chevron Research Company
CA, US
IPC
E21B 43/30
E21B 43/24
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