Chemical amendments for the stimulation of biogenic gas...

C - Chemistry – Metallurgy – 12 – P

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C12P 5/02 (2006.01) C09K 8/582 (2006.01) C12P 1/00 (2006.01) C12P 5/00 (2006.01) E21B 43/22 (2006.01)

Patent

CA 2648752

Methods of stimulating biogenic production of a metabolic product with enhanced hydrogen content are described. The methods may include accessing a consortium of microorganisms in a geologic formation that includes a carbonaceous material. They may also include providing hydrogen and one or more phosphorous compounds to the microorganisms. The combination of the hydrogen and phosphorous compounds stimulates the consortium to metabolize the carbonaceous material into the metabolic product with enhanced hydrogen content. Also, methods of stimulating biogenic production of a metabolic product with enhanced hydrogen content by providing a carboxylate compound, such as acetate, to a consortium of microorganisms is described. The carboxylate compound stimulates the consortium to metabolize carbonaceous material in the formation into the metabolic product with enhanced hydrogen content.

La présente invention concerne des procédés permettant de stimuler la production biogène d'un produit métabolique à teneur accrue en hydrogène. Un tel procédé peut consister en un accès à un consortium de microorganismes dans une formation géologique renfermant une matière carbonée. Un tel procédé peut également consister en un apport d'hydrogène et d'au moins un composé phosphoré aux microorganismes. La combinaison de l'hydrogène et des composés phosphorés stimule le consortium pour qu'il donne, par métabolisation de la matière carbonée, un produit métabolique à teneur accrue en hydrogène. L'invention concerne également des procédés permettant de stimuler la production biogène d'un produit métabolique à teneur accrue en hydrogène par apport d'un composé carboxylate tel que l'acétate à un consortium de microorganismes. Le composé carboxylate stimule le consortium pour qu'il donne, par métabolisation de la matière carbonée se trouvant dans la formation, un produit métabolique à teneur accrue en hydrogène.

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