Geo Fossil Fuels, LLC

Zhaoduo Zhang

William J Kohr

David J Galgoczy

A method is provided for the production of an aqueous composition suitable for direct use in a water-flood oil recovery process, which comprises a clarified fermentation fluid containing at least one dissolved polysaccharide, along with the clarified fermentation fluid and aqueous compositions prepared by such method.

Compositions comprising and methods of making bio-polymers

A method of enhanced oil recovery that includes water-flooding an oil reservoir with an alkaline fluid or a fluid containing a compound toxic to indigenous microbes and inoculating the oil reservoir with a consortium comprising microbes that naturally are, or are engineered to be, obligatory alkaphilic, halo-alkaphilic or alkaline tolerant, and naturally are, or are engineered to be, deficient in their ability to utilize short chain hydrocarbons of 12 carbons or less but have the ability to convert hydrocarbons into fatty acids.

Alkaline microbial enhanced oil recovery

The present invention provides methods for increasing the viscosity of the drive fluid for displacing oil from a subterranean formation by the use of microorganisms selected or modified for the ability to produce cell free polymers without the formation of any significant bioplugging biofilm or capsule.

Microbial enhanced oil recovery method

A method of enhanced oil recovery that includes water-flooding an oil reservoir with an alkaline fluid or a fluid containing a compound toxic to indigenous microbes and inoculating the oil reservoir with a consortium comprising microbes that naturally are, or are engineered to be, obligatory alkaliphilic, halo-alkaliphilic or alkaline tolerant, and naturally are, or are engineered to be, deficient in their ability to utilize short chain hydrocarbons of 12 carbons or less but have the ability to convert hydrocarbons into fatty acids.

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Pleasanton, CA, United States of America

Zhaoduo Zhang