Wells – Processes – Using microorganisms
Reexamination Certificate
2004-07-14
2009-02-03
Bates, Zakiya W. (Department: 3676)
Wells
Processes
Using microorganisms
C435S041000, C435S252400
Reexamination Certificate
active
07484560
ABSTRACT:
The present invention provides a microbial consortium containing three hyperthermophilic, barophilic, acidogenic, anaerobic bacterial strains for enhanced oil recovery from oil reservoirs where temperatures range from 70° C. to 90√ C. The said microbial consortium is unique in producing a variety of metabolic products mainly CO2, methane, biosurfactant, volatile fatty acids and alcohols in the presence of specially designed nutrient medium. These metabolic products increase sweep efficiency of crude oil from oil bearing poles of rock formation. The present invention also provides a process for enhancing the oil recovery by in situ application of the said microbial consortium.
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Agnihotri Anil
Khazanchi Shinben Kishen
Khurana Raj Karan
Kumar Ashok
Lal Banwari
Bates Zakiya W.
Birch & Stewart Kolasch & Birch, LLP
Institute of Reservoir Studies
The Energy and Resource Institute
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