Patents by Inventor Pramod D. Patil

Pramod D. Patil has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20220145163
    Abstract: The present disclosure provides for a sandstone-containing oil reservoir additive composition that includes (a) a nonionic wettability alteration agent having Formula (I): and (b) an injection fluid. For Formula (I), R is an alkyl residue from a branched secondary alcohol initiator, where R can have a carbon number of C4 to C10, x is from 3 to 10 and y is from 1 to 20. The injection fluid can be selected from the group consisting of sea water, engineered water, injection brine, produced brine or combinations thereof. The nonionic wettability agent in the sandstone reservoir additive composition can be from 0.01 weight percent (wt %) to 20 wt % based on the total weight of the sandstone reservoir additive composition. The sandstone-containing oil reservoir additive composition can be used in enhance oil recovery operations, such as a waterflooding operation or a carbon dioxide flooding operation.
    Type: Application
    Filed: February 17, 2020
    Publication date: May 12, 2022
    Applicant: Dow Global Technologies LLC
    Inventors: Amit Katiyar, Troy E. Knight, Pramod D. Patil, Neeraj Rohilla
  • Publication number: 20210163813
    Abstract: Surfactants constructed from three synthetic building blocks that contain multiple hydrocarbon chains, ethyleneamine, and alkyl sulfonate salt groups, were shown to possess good thermal stability, and foamability, and high foam profiles. The materials are targeted for high temperature foaming applications, such as foam flooding enhanced oil recovery to improve conformance control and other oil and gas downhole foaming applications.
    Type: Application
    Filed: December 18, 2017
    Publication date: June 3, 2021
    Inventors: Wenke Miao, Peng Gao, Lixin You, Cheng Shen, Pramod D. Patil, Biplab Mukherjee, Troy E. Knight
  • Publication number: 20200231862
    Abstract: Disclosed is a temperature stabilized aqueous wettability composition and method of use for the recovery of petroleum from subterranean formulations. Said aqueous wettability composition comprises a polyethylene oxide nonionic surfactant, a disulfonated anionic surfactant, and one or more alcohol.
    Type: Application
    Filed: May 3, 2018
    Publication date: July 23, 2020
    Inventors: Troy E. Knight, Susan K. Falcone-Potts, Martha Hernandez, Amit Katiyar, Pramod D. Patil
  • Patent number: 10717921
    Abstract: The present invention includes a foam-forming composition for use in enhanced oil recovery, and a method of using said foam-forming composition for recovering oil. The foam-forming composition of the present invention comprises a nonionic surfactant, in particular an alcohol-alkoxylate, and an anionic surfactant, in particular an alkyl diphenyloxide (di)sulfonate, where the foam-forming composition promotes a formation of a stable foam formed of a CO2 and water.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: July 21, 2020
    Assignees: Dow Global Technologies LLC, Rohm and Haas Company
    Inventors: David L. Frattarelli, Joydeep Mukherjee, Susan K. Falcone-Potts, Martha Hernandez, Troy E. Knight, Pramod D. Patil
  • Patent number: 10662370
    Abstract: The present invention provides for a method of using a mixture of two or more nonionic surfactants for enhanced oil recovery and for an emulsion that includes carbon dioxide, a diluent and a mixture of two or more nonionic surfactants, where each nonionic surfactant is prepared with a double metal cyanide catalyst.
    Type: Grant
    Filed: October 4, 2017
    Date of Patent: May 26, 2020
    Assignee: Dow Global Technologies LLC
    Inventors: Adam L. Grzesiak, Robert M. Campbell, Jacob M. Crosthwaite, Amit Katiyar, Troy E. Knight, Pramod D. Patil
  • Patent number: 10414971
    Abstract: Embodiments of the present disclosure include modified nonionic surfactant formulations having a nonionic surfactant and a pour point depressant, where the modified nonionic surfactant formulations have a pour point of ?54° C. to ?75° C. In one or more embodiments, the modified nonionic surfactant formulations can be introduced into a flow of carbon dioxide, where the flow of carbon dioxide and the modified nonionic surfactant formulation are injected into an oil containing reservoir. In one or more embodiments, an emulsion of the carbon dioxide and the nonionic surfactant form in the oil containing reservoir, where the use of the pour point depressant provides minimal interference in forming the emulsion.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: September 17, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Sayeed Abbas, Aaron W. Sanders, Troy Knight, Pramod D. Patil, Brenna White, Susan K. Falcone-Potts, Martha Hernandez
  • Publication number: 20190256763
    Abstract: The present invention provides methods of using a mixture of two or more nonionic surfactants for enhanced oil recovery, where each nonionic surfactant is prepared with a double metal cyanide catalyst. The present invention also provides for an emulsion that includes carbon dioxide, a diluent and the mixture of nonionic surfactants.
    Type: Application
    Filed: October 4, 2017
    Publication date: August 22, 2019
    Inventors: Adam L. Grzesiak, Robert M. Campbell, Jacob M. Crosthwaite, Amit Katiyar, Troy E. Knight, Pramod D. Patil
  • Patent number: 10010856
    Abstract: At least one method to efficiently produce alkylene oxide from partial oxidation of hydrocarbons using a high efficiency heterogeneous catalyst in a fixed bed enclosed within a reaction vessel, and a reaction vessel constructed to facilitate the same.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: July 3, 2018
    Assignee: DOW TECHNOLOGY INVESTMENTS LLC
    Inventors: Max M. Tirtowidjojo, Christina Zarth, Subrata Sen, Pramod D. Patil
  • Publication number: 20180037809
    Abstract: The present invention includes a foam-forming composition for use in enhanced oil recovery, and a method of using said foam-forming composition for recovering oil. The foam-forming composition of the present invention comprises a nonionic surfactant, in particular an alcohol-alkoxylate, and an anionic surfactant, in particular an alkyl diphenyloxide (di)sulfonate, where the foam-forming composition promotes a formation of a stable foam formed of a CO2 and water.
    Type: Application
    Filed: April 28, 2016
    Publication date: February 8, 2018
    Inventors: David Frattarelli, Joydeep Mukherjee, Susan K. Falcone-Potts, Martha Hernandez, Troy E. Knight, Pramod D. Patil
  • Publication number: 20170369763
    Abstract: Disclosed is an aqueous cementing slurry composition and a method of use thereof for cementing a pipe or casing in a borehole of a well using an aqueous cementing slurry composition comprising (a) a hydraulic cement, (b) a methylhydroxyethyl cellulose (HEMC) having an ethylene oxide molar substitution (EO MS) of from 0.16 to 0.22 and a methyl degree of substitution (M DS) of from 1.35 to 1.45, (c) water, and optionally (d) one or more other additives conventionally added to aqueous cementing compositions useful in cementing casings in the borehole of wells. Preferably, the aqueous cementing slurry composition is pumped downwardly into said casing, pumped upwardly into the annulus surrounding said casing until said aqueous composition fills that portion of the annular space desired to be sealed, and then maintaining said aqueous cementing composition in place until the cement sets.
    Type: Application
    Filed: January 11, 2016
    Publication date: December 28, 2017
    Applicant: Dow Global Technologies LLC
    Inventors: Pramod D. Patil, Alexandra Hild
  • Patent number: 9776104
    Abstract: Disclosed are processes and apparatuses for producing a crystalline product. The processes and apparatuses may extend the operational time of an evaporative crystallizer by providing an internal volume or large deposit inventory for fouling deposits to reside without impacting the unit operation.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: October 3, 2017
    Assignee: Dow Global Technologies LLC
    Inventors: Timothy C. Frank, J. W. Moore, Paul A. Larsen, Pramod D. Patil, Robert M. Whittingslow, Paul A. Gillis
  • Publication number: 20170044422
    Abstract: Embodiments of the present disclosure include modified nonionic surfactant formulations having a nonionic surfactant and a pour point depressant, where the modified nonionic surfactant formulations have a pour point of ?54° C. to ?75° C. In one or more embodiments, the modified nonionic surfactant formulations can be introduced into a flow of carbon dioxide, where the flow of carbon dioxide and the modified nonionic surfactant formulation are injected into an oil containing reservoir. In one or more embodiments, an emulsion of the carbon dioxide and the nonionic surfactant form in the oil containing reservoir, where the use of the pour point depressant provides minimal interference in forming the emulsion.
    Type: Application
    Filed: September 28, 2016
    Publication date: February 16, 2017
    Applicant: Dow Global Technologies LLC
    Inventors: Sayeed Abbas, Aaron W. Sanders, Troy Knight, Pramod D. Patil, Brenna White, Susan K. Falcone-Potts, Martha Hernandez
  • Publication number: 20150336064
    Abstract: At least one method to efficiently produce alkylene oxide from partial oxidation of hydrocarbons using a high efficiency heterogeneous catalyst in a fixed bed enclosed within a reaction vessel, and a reaction vessel constructed to facilitate the same.
    Type: Application
    Filed: June 1, 2015
    Publication date: November 26, 2015
    Inventors: Max M. Tirtowidjojo, Christina Zarth, Subrata Sen, Pramod D. Patil
  • Publication number: 20150315385
    Abstract: A bitumen transport composition is provided comprising bitumen, a diluent in an amount of 24 weight percent or less and an additive wherein the additive is a mono-alcohol, a mono-nitrile, an amine or mixtures thereof. Also provided is a method to make the bitumen transport composition. Also provided is a method to transport the bitumen transport composition.
    Type: Application
    Filed: December 10, 2013
    Publication date: November 5, 2015
    Inventors: Nicole L. Wagner, David J. Brennan, Matthew D. Miller, Pramod D. Patil, Subrata Sen, Zhe Zhou
  • Patent number: 9073034
    Abstract: At least one method to efficiently produce alkylene oxide from partial oxidation of hydrocarbons using a high efficiency heterogeneous catalyst in a fixed bed enclosed within a reaction vessel, and a reaction vessel constructed to facilitate the same.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: July 7, 2015
    Assignee: DOW TECHNOLOGY INVESTMENTS LLC
    Inventors: Max M. Tirtowidjojo, Subrata Sen, Christina Zarth, Pramod D. Patil
  • Publication number: 20140338843
    Abstract: Disclosed are processes and apparatuses for producing a crystalline product. The processes and apparatuses may extend the operational time of an evaporative crystallizer by providing an internal volume or large deposit inventory for fouling deposits to reside without impacting the unit operation.
    Type: Application
    Filed: December 14, 2012
    Publication date: November 20, 2014
    Inventors: Timothy C. Frank, J.W. Moore, Paul A. Larsen, Pramod D. Patil, Robert M. Whittingslow, Paul A. Gillis
  • Publication number: 20130144073
    Abstract: At least one method to efficiently produce alkylene oxide from partial oxidation of hydrocarbons using a high efficiency heterogeneous catalyst in a fixed bed enclosed within a reaction vessel, and a reaction vessel constructed to facilitate the same.
    Type: Application
    Filed: March 17, 2011
    Publication date: June 6, 2013
    Applicant: THE DOW CHEMICAL INVESTMENTS LLC
    Inventors: Max M. Tirtowidjojo, Subrata Sen, Christina Zarth, Pramod D. Patil