Patent application number | Description | Published |
20090004707 | Process for Producing Glycolic Acid from Formaldehyde And Hydrogen Cyanide - A process is provided for producing glycolic acid from formaldehyde and hydrogen cyanide. More specifically, heat-treated formaldehyde and hydrogen cyanide are reacted to produce glycolonitrile having low concentrations of impurities. The glycolonitrile is subsequently converted to an aqueous solution of ammonium glycolate using an enzyme catalyst having nitrilase activity derived from | 01-01-2009 |
20090004708 | Process For Producing Glycolic Acid From Formaldehyde And Hydrogen Cyanide - A process is provided for producing glycolic acid from formaldehyde and hydrogen cyanide. More specifically, heat-treated formaldehyde and hydrogen cyanide are reacted to produce glycolonitrile having low concentrations of impurities. The glycolonitrile is subsequently converted to an aqueous solution of ammonium glycolate using an enzyme catalyst having nitrilase activity derived from | 01-01-2009 |
20090004709 | Process For Producing Glycolic Acid From Formaldehyde and Hydrogen Cyanide - A process is provided for producing glycolic acid from formaldehyde and hydrogen cyanide. More specifically, heat-treated formaldehyde and hydrogen cyanide are reacted to produce glycolonitrile having low concentrations of impurities. The glycolonitrile is subsequently converted to an aqueous solution of ammonium glycolate using an enzyme catalyst having nitrilase activity derived from | 01-01-2009 |
20090004710 | Process For Producing Glycolic Acid From Formaldehyde And Hydrogen Cyanide - A process is provided for producing glycolic acid from formaldehyde and hydrogen cyanide. More specifically, heat-treated formaldehyde and hydrogen cyanide are reacted to produce glycolonitrile having low concentrations of impurities. The glycolonitrile is subsequently converted to an aqueous solution of ammonium glycolate using an enzyme catalyst having nitrilase activity derived from | 01-01-2009 |
20090004711 | Process For Producing Glycolic Acid From Formaldehyde And Hydrogen Cyanide - A process is provided for producing glycolic acid from formaldehyde and hydrogen cyanide. More specifically, heat-treated formaldehyde and hydrogen cyanide are reacted to produce glycolonitrile having low concentrations of impurities. The glycolonitrile is subsequently converted to an aqueous solution of ammonium glycolate using an enzyme catalyst having nitrilase activity derived from | 01-01-2009 |
20090011482 | Process For Producing Glycolic Acid From Formaldehyde And Hydrogen Cyanide - A process is provided for producing glycolic acid from formaldehyde and hydrogen cyanide. More specifically, heat-treated formaldehyde and hydrogen cyanide are reacted to produce glycolonitrile having low concentrations of impurities. The glycolonitrile is subsequently converted to an aqueous solution of ammonium glycolate using an enzyme catalyst having nitrilase activity derived from | 01-08-2009 |
20090011483 | Process For Producing Glycolic Acid From Formaldehyde And Hydrogen Cyanide - A process is provided for producing glycolic acid from formaldehyde and hydrogen cyanide. More specifically, heat-treated formaldehyde and hydrogen cyanide are reacted to produce glycolonitrile having low concentrations of impurities. The glycolonitrile is subsequently converted to an aqueous solution of ammonium glycolate using an enzyme catalyst having nitrilase activity derived from | 01-08-2009 |
20090050315 | RING REDUCTION VIA NATURAL ANAEROBIC MICROBIOLOGICAL ACTIVITY FOR TRANSFORMATION OF CRUDE OIL-ASSOCIATED AROMATIC CHEMICALS - The viscosity of the crude oil is reduced through reductive biotransformation of aromatic components of the crude oil by enhancing the biochemical capabilities of the natural anaerobic microbial populations of the well. | 02-26-2009 |
20090050316 | METHODS FOR IMPROVED HYDROCARBON AND WATER COMPATIBILITY - The present invention relates to methods for improving hydrocarbon and water compatibility. More specifically, the invention relates to methods for enhancing the microbial production of surface-active agents in hydrocarbon-exposed surface waters in order to improve hydrocarbon and water compatibility. Hydrocarbon-exposed surface waters having enhanced levels of surface-active agents can be used to improve hydrocarbon recovery from subterranean formations or for remediation of hydrocarbon-contaminated sites. | 02-26-2009 |
20090050317 | METHOD FOR IMPROVING HYDROCARBON-WATER COMPATIBILITY IN A SUBSURFACE HYDROCARBON-CONTAMINATED SITE - The present invention relates to methods for improving hydrocarbon-water compatibility. More specifically, the invention relates to methods for enhancing the production of surface-active agents in hydrocarbon-exposed surface waters in order to improve hydrocarbon-water compatibility. Hydrocarbon-exposed surface waters having enhanced levels of surface-active agents can be used to improve remediation of subsurface hydrocarbon-contaminated sites. | 02-26-2009 |
20090263887 | IDENTIFICATION, CHARACTERIZATION, AND APPLICATION OF PSEUDOMONAS STUTZERI (LH4:15), USEFUL IN MICROBIALLY ENHANCED OIL RELEASE - The present disclosure relates to isolation and identification of unique | 10-22-2009 |
20100044031 | METHOD FOR IDENTIFICATION OF NOVEL ANAEROBIC DENITRIFYING BACTERIA UTILIZING PETROLEUM COMPONENTS AS SOLE CARBON SOURCE - A method for the phylogenetic identification of indigenous anaerobic denitrifying bacterial species in an oil well is described. The method avoids the process of enrichment of microbial samples. | 02-25-2010 |
20100081585 | CONTROLLING BIOAVAILABILITY OF NUTRIENT ADDITIONS IN SUBSURFACE FORMATIONS - Controlling microbial growth and activity during Microbial Enhanced Oil Recovery processes is disclosed. Specific control of microbial growth and activity in this process results in prevention of nutrient loss in transit and allows better targeting of microbial activity to the desired subsurface location(s). | 04-01-2010 |
20110030956 | ALTERING THE INTERFACE OF HYDROCARBON-COATED SURFACES - Methods and compositions are provided wherein microorganisms are used to alter the interface of hydrocarbons and hydrocarbon-coated surfaces to increase oil recovery, for improved bioremediation and/or pipeline maintenance. | 02-10-2011 |
20110300594 | PROCESS FOR MAKING LINEAR DICARBOXYLIC ACIDS FROM RENEWABLE RESOURCES - This invention provides a process of making a linear dicarboxylic acid of C | 12-08-2011 |
20120006534 | METHOD FOR PRE-TREATMENT OF SUBTERRANEAN SITES ADJACENT TO WATER INJECTION WELLS - A method to improve the effectiveness of MEOR or bioremediation processes has been disclosed. In this method toxic chemicals accumulated in subterranean sites adjacent to the water injection wells are either dispersed or removed prior to introduction of microbial inocula for enhanced microbial oil recovery or bioremediation of these sites. | 01-12-2012 |
20120006535 | METHOD FOR PRE-TREATMENT OF SUBTERRANEAN SITES ADJACENT TO WATER INJECTION WELLS - A method to improve the effectiveness of MEOR or bioremediation processes has been disclosed. In this method toxic chemicals accumulated in subterranean sites adjacent to the water injection wells are either dispersed or removed prior to introduction of microbial inocula for enhanced microbial oil recovery or bioremediation of these sites. | 01-12-2012 |
20120006536 | METHOD FOR PRE-TREATMENT OF SUBTERRANEAN SITES ADJACENT TO WATER INJECTION WELLS - A method to improve the effectiveness of MEOR or bioremediation processes has been disclosed. In this method toxic chemicals accumulated in subterranean sites adjacent to the water injection wells are either dispersed or removed prior to introduction of microbial inocula for enhanced microbial oil recovery or bioremediation of these sites. | 01-12-2012 |
20120006537 | METHOD FOR PRE-TREATMENT OF SUBTERRANEAN SITES ADJACENT TO WATER INJECTION WELLS - A method to improve the effectiveness of MEOR or bioremediation processes has been disclosed. In this method toxic chemicals accumulated in subterranean sites adjacent to the water injection wells are either dispersed or removed prior to introduction of microbial inocula for enhanced microbial oil recovery or bioremediation of these sites. | 01-12-2012 |
20120006538 | METHOD FOR PRE-TREATMENT OF SUBTERRANEAN SITES ADJACENT TO WATER INJECTION WELLS - A method to improve the effectiveness of MEOR or bioremediation processes has been disclosed. In this method toxic chemicals accumulated in subterranean sites adjacent to the water injection wells are either dispersed or removed prior to introduction of microbial inocula for enhanced microbial oil recovery or bioremediation of these sites. | 01-12-2012 |
20120006539 | METHOD FOR PRE-TREATMENT OF SUBTERRANEAN SITES ADJACENT TO WATER INJECTION WELLS - A method to improve the effectiveness of MEOR or bioremediation processes has been disclosed. In this method toxic chemicals accumulated in subterranean sites adjacent to the water injection wells are either dispersed or removed prior to introduction of microbial inocula for enhanced microbial oil recovery or bioremediation of these sites. | 01-12-2012 |
20120006540 | METHOD FOR PRE-TREATMENT OF SUBTERRANEAN SITES ADJACENT TO WATER INJECTION WELLS - A method to improve the effectiveness of MEOR or bioremediation processes has been disclosed. In this method toxic chemicals accumulated in subterranean sites adjacent to the water injection wells are either dispersed or removed prior to introduction of microbial inocula for enhanced microbial oil recovery or bioremediation of these sites. | 01-12-2012 |
20120006541 | METHOD FOR PRE-TREATMENT OF SUBTERRANEAN SITES ADJACENT TO WATER INJECTION WELLS - A method to improve the effectiveness of MEOR or bioremediation processes has been disclosed. In this method toxic chemicals accumulated in subterranean sites adjacent to the water injection wells are either dispersed or removed prior to introduction of microbial inocula for enhanced microbial oil recovery or bioremediation of these sites. | 01-12-2012 |
20120006542 | METHOD FOR PRE-TREATMENT OF SUBTERRANEAN SITES ADJACENT TO WATER INJECTION WELLS - A method to improve the effectiveness of MEOR or bioremediation processes has been disclosed. In this method toxic chemicals accumulated in subterranean sites adjacent to the water injection wells are either dispersed or removed prior to introduction of microbial inocula for enhanced microbial oil recovery or bioremediation of these sites. | 01-12-2012 |
20120006552 | METHOD FOR PRE-TREATMENT OF SUBTERRANEAN SITES ADJACENT TO WATER INJECTION WELLS - A method to improve the effectiveness of MEOR or bioremediation processes has been disclosed. In this method toxic chemicals accumulated in subterranean sites adjacent to the water injection wells are either dispersed or removed prior to introduction of microbial inocula for enhanced microbial oil recovery or bioremediation of these sites. | 01-12-2012 |
20120273189 | PREVENTION OF BIOMASS AGGREGATION AT INJECTION WELLS - Disclosed herein is introduction of different nutrient solution formulations to a subterranean target site to prevent biofilm formation and biomass aggregation at the sand face of an injection well bore during MEOR or bioremediation processes. A first nutrient solution formulation supports growth of introduced microorganisms and a second nutrient solution formulation is used to promote biofilm formation to allow plugging of pores and channels in the subterranean target site, for MEOR or bioremediation. | 11-01-2012 |
20120277126 | METHODS, STRAINS, AND COMPOSITIONS USEFUL FOR MICROBIALLY ENHANCED OIL RECOVERY: PSEUDOMONAS STUTZERI - Methods, microorganisms, and compositions are provided wherein oil reservoirs are inoculated with microorganisms belonging to | 11-01-2012 |
20120295342 | PREVENTION OF CONTAMINATION OF FEED RESERVOIRS & FEED LINES IN BIOREACTOR SYSTEMS - A method to prevent contamination of feed line(s) and nutrient feed reservoir(s) is disclosed. In this method a heated zone is established in the feed line close to the location where the feed line connects to the bioreactor. The heated zone prevents back growth of cells from the bioreactor back into the feed line and further into the feed reservoir. | 11-22-2012 |
20130056203 | REDUCING SULFIDE IN OIL RESERVOIR PRODUCTION FLUIDS - Methods are provided for treating production fluid in an oil reservoir to reduce the amount of sulfide in the production fluid. The production fluid is treated with nitrate and/or nitrite ions in an aqueous solution that is added to an injection well that is in contact with the production well. | 03-07-2013 |
20130056214 | REDUCING SULFIDE IN PRODUCTION FLUIDS DURING OIL RECOVERY - Methods are provided for treating production fluid in a production well in an oil reservoir to reduce the amount of sulfide in the production fluid. The production fluid is treated with nitrate and/or nitrite ions in an aqueous solution that is added to the well casing. | 03-07-2013 |
20130075085 | USE OF GLUTAMATE FOR MICROBIAL ENHANCED OIL RECOVERY - Methods and compositions are provided to enhance oil recovery wherein the indigenous microbial population of an oil reservoir is fed a composition containing glutamate and an electron acceptor. The effect of the glutamate carbon source is to promote bioplugging of a permeable environment by the indigenous microorganisms. Bioplugging in an oil reservoir will improve sweep efficiency thereby leading to enhanced secondary oil recovery. | 03-28-2013 |
20130160994 | REDUCING SULFIDE IN PRODUCTION FLUIDS DURING OIL RECOVERY - Methods are provided for treating production fluid in a production well in an oil reservoir to reduce the amount of sulfide in the production fluid. The production fluid is treated with nitrate and/or nitrite ions or inorganic oxidizing agent in an aqueous solution that is added to the well casing. | 06-27-2013 |
20140000874 | REDUCING SULFIDE IN OIL RESERVOIR PRODUCTION FLUIDS | 01-02-2014 |
20140037915 | MEMBRANES FOR FLEXIBLE MICROBIAL FUEL CELL CATHODES AND OTHER APPLICATIONS - A membrane for use as a packaging or in microbial fuel cells having a first layer of a polymer having a high oxygen permeability and a second supporting layer made of a woven or a non-woven material, wherein both layers are dot laminated and/or pattern laminated together by using an adhesive. | 02-06-2014 |
20140352946 | CONTROLLING BIOAVAILABILITY OF NUTRIENT ADDITIONS IN SUBSURFACE FORMATIONS - Controlling microbial growth and activity during Microbial Enhanced Oil Recovery processes is disclosed. Specific control of microbial growth and activity in this process results in prevention of nutrient loss in transit and allows better targeting of microbial activity to the desired subsurface location(s). | 12-04-2014 |