Method of controlling growth and heat loss of an in situ gravity drainage chamber formed with a condensing solvent process

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United States of America Patent

PATENT NO 9476291
APP PUB NO 20140116685A1
SERIAL NO

13849869

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Abstract

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This invention is a solvent based gravity drainage process whereby the vertical growth rate of the chamber is restricted by placing, monitoring and managing a buoyant gas blanket at the top of the vapor chamber. This invention reduces the heat loss to the overburden as well as providing a means to preserve a barrier layer of bitumen saturated reservoir sand at the top of the pay zone in reservoirs where there is limited or no confining layer present.

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Patent Owner(s)

Patent OwnerAddress
HATCH LTD2800 SPEAKMAN DRIVE MISSISSAUGA ONTARIO L5K 2R7

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gunnewiek, Lowy Burlington, CA 4 22
Nenniger, John Calgary, CA 13 530

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