Method of enhancing oil recovery

Details Method of enhancing oil recovery Method of enhancing oil recovery

C - Chemistry, Metallurgy

09

K

C09K 8/592 (2006.01) C09K 8/582 (2006.01) C12N 1/00 (2006.01)

Patent

CA 2693008

The invention provides a method of enhancing oil recovery from a subterranean hydrocarbon reservoir, said method comprising injecting into said reservoir through a matrix injection section of a well a microorganism capable of digesting oil, and recovering oil from an oil receiving section of a production well, where said injection section is in said production well or is in an injection well arid is above or adjacent said oil receiving section, and wherein microorganism injection is preceded by another oil extraction enhancing procedure.

L'invention porte sur un procédé pour améliorer la récupération de pétrole à partir d'un réservoir souterrain d'hydrocarbures. Ce procédé comprend les opérations consistant à injecter dans ledit réservoir à travers une section d'injection de matrice d'un puits sur micro-organisme capable de digérer le pétrole, et à récupérer le pétrole à partir d'une section de réception de pétrole d'un puits de production, ladite section d'injection étant dans ledit puits de production ou étant dans un puits d'injection et étant disposée au-dessus ou au voisinage de ladite section de réception de pétrole, et l'injection de micro-organisme étant précédée par un autre mode opératoire d'augmentation de l'extraction de pétrole.

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