Oilfield in-situ upgrading process

Details Oilfield in-situ upgrading process Oilfield in-situ upgrading process

E - Fixed Constructions

21

B

E21B 43/243 (2006.01) E21B 43/24 (2006.01) E21B 43/30 (2006.01)

Patent

CA 2255071

A well configuration is provided comprising an injection well completed relatively high in an oil reservoir and a production well completed relatively low in the reservoir. The production well has a horizontal leg oriented generally perpendicularly to a generally linear and laterally extending, upright combustion front propagated from the injection well. The leg is positioned in the path of the advancing front. Oil upgrading catalyst has been emplaced along the horizontal leg. The production well is maintained open, thereby providing a low pressure sink which induces the front to advance along the leg. The hot combustion gases react with the commingled oil over the catalyst to provide in situ upgrading.

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