Biological enhancement of hydrocarbon extraction

C - Chemistry – Metallurgy – 12 – Q

Patent

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Details

C12Q 1/68 (2006.01) C02F 3/34 (2006.01) C09K 8/582 (2006.01) C09K 8/60 (2006.01) C10G 1/00 (2006.01) C12P 7/64 (2006.01) E21B 43/16 (2006.01)

Patent

CA 2695273

A method of microbial enhanced oil recovery for recovering oil from an oil- bearing rock formation is provided. The methodology uses a consortium of bacteria including a mixture of surfactant producing bacteria and non- surfactant enzyme producing bacteria which may release hydrocarbons from bitumen containing sands. The described bioprocess can work with existing petroleum recovery protocols. The consortium microorganisms are also useful for treatment of above oil sands, ground waste tailings, subsurface oil recovery, and similar materials to enhance remediation and/or recovery of additional hydrocarbons from the materials.

L'invention porte sur un procédé microbien amélioré de récupération d'huile permettant de récupérer de l'huile dans une formation rocheuse pétrolifère. La méthodologie utilise un consortium de bactéries comprenant un mélange de bactéries produisant des enzymes mais pas de tensio-actifs et de bactéries produisant des tensio-actifs pouvant libérer des hydrocarbures de sable bitumeux. Le bioprocédé décrit peut fonctionner avec des protocoles existants de récupération du pétrole. Les microorganismes du consortium sont également utiles pour le traitement des sables bitumineux mentionnés ci-dessus, de résidus de déchets broyés, la récupération souterraine de pétrole et autres matières analogues visant à améliorer la conversion et/ou la récupération d'hydrocarbures supplémentaires dans ces matières.

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