Patents by Inventor Kung-Po Chao

Kung-Po Chao 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).

  • Patent number: 11905459
    Abstract: Halite scales in an oilfield brine that has a potential for halite scaling can have halite scale formation inhibited or prevented by adding an effective amount of an additive, where the additive contains at least one non-water-soluble quaternary ammonium compound and at least one organic solvent. The quaternary ammonium compound may be benzyl-alkyldimethyl ammonium chloride, where the alkyl group has from 2 to 30 carbon atoms. The organic solvent may be one or more alcohol or glycol.
    Type: Grant
    Filed: May 26, 2022
    Date of Patent: February 20, 2024
    Assignee: Baker Hughes Oilfield Operations LLC
    Inventors: Dong Shen, Haiping Lu, Daniel Philip Bestgen, Kung-Po Chao, Joseph Penkala
  • Publication number: 20230383171
    Abstract: Halite scales in an oilfield brine that has a potential for halite scaling can have halite scale formation inhibited or prevented by adding an effective amount of an additive, where the additive contains at least one non-water-soluble quaternary ammonium compound and at least one organic solvent. The quaternary ammonium compound may be benzyl-alkyldimethyl ammonium chloride, where the alkyl group has from 2 to 30 carbon atoms. The organic solvent may be one or more alcohol or glycol.
    Type: Application
    Filed: May 26, 2022
    Publication date: November 30, 2023
    Applicant: Baker Hughes Oilfield Operations LLC
    Inventors: Dong Shen, Haiping Lu, Daniel Philip Bestgen, Kung-Po Chao, Joseph Penkala
  • Patent number: 11124692
    Abstract: Methods of treating a petroleum hydrocarbon fluid are described wherein the petroleum hydrocarbon fluid is contacted with an asphaltene inhibitor composition having an ionic liquid and an asphaltene inhibitor. The ionic liquid has a cation of R1R2R3R4N+ or R1R2R3N+R8N+R5R6R7 and an anion, wherein R1, R2, R3, R4, R5, R6 and R7 are independently selected from hydrogen, a straight or branched C1-30 alkyl group, benzyl, a C7-30 alkylbenzyl group, a C7-30 arylalkyl group, a straight or branched C3-30 alkenyl group, a C1-30 hydroxyalkyl group, a C7-30 hydroxyalkylbenzyl group, an oxyalkylene or a polyoxyalkylene group or a zwitterion; R8 is a straight or branched C1-30 alkylene, an alkylene oxyalkylene or an alkylene polyoxyalkylene; and the anion includes halides, hydroxyl, bicarbonate, carbonate, alkyl carbonates, alkoxides, carboxylates, hydroxycarboxylates or a combination thereof.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: September 21, 2021
    Assignee: BAKER Hughes Holdings LLC
    Inventors: Jerry Weers, Henry Nguyen, David Jennings, Kung-Po Chao
  • Patent number: 10858604
    Abstract: A method of stabilizing asphaltenes in a petroleum hydrocarbon fluid comprises contacting the petroleum hydrocarbon fluid with a mixed phenol aldehyde derived from an aldehyde and two or more unsubstituted or alkyl-substituted monophenols, the two or more unsubstituted or alkyl-substituted monophenols comprising a first phenol which is a C1-20 linear or branched alkyl monophenol; and a second phenol which is unsubstituted or a C1-20 linear or branched alkyl monophenol different from the first phenol, wherein the molar ratio of the first phenol relative to the second phenol is about 4:1 to about 1:4.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: December 8, 2020
    Assignee: BAKER HUGHES, A GE COMPANY, LLC
    Inventors: Henry Nguyen, Jerry Weers, David Jennings, Kung-Po Chao, Joey Dacula Mangadlao
  • Publication number: 20190177599
    Abstract: Methods of treating a petroleum hydrocarbon fluid are described wherein the petroleum hydrocarbon fluid is contacted with an asphaltene inhibitor composition having an ionic liquid and an asphaltene inhibitor. The ionic liquid has a cation of R1R2R3R4N+ or R1R2R3N+R8N+R5R6R7 and an anion, wherein R1, R2, R3, R4, R5, R6 and R7 are independently selected from hydrogen, a straight or branched C1-30 alkyl group, benzyl, a C7-30 alkylbenzyl group, a C7-30 arylalkyl group, a straight or branched C3-30 alkenyl group, a C1-30 hydroxyalkyl group, a C7-30 hydroxyalkylbenzyl group, an oxyalkylene or a polyoxyalkylene group or a zwitterion; R8 is a straight or branched C1-30 alkylene, an alkylene oxyalkylene or an alkylene polyoxyalkylene; and the anion includes halides, hydroxyl, bicarbonate, carbonate, alkyl carbonates, alkoxides, carboxylates, hydroxycarboxylates or a combination thereof.
    Type: Application
    Filed: December 7, 2018
    Publication date: June 13, 2019
    Inventors: Jerry Weers, Henry Nguyen, David Jennings, Kung-Po Chao
  • Publication number: 20190177630
    Abstract: A method of stabilizing asphaltenes in a petroleum hydrocarbon fluid comprises contacting the petroleum hydrocarbon fluid with a mixed phenol aldehyde derived from an aldehyde and two or more unsubstituted or alkyl-substituted monophenols, the two or more unsubstituted or alkyl-substituted monophenols comprising a first phenol which is a C1-20 linear or branched alkyl monophenol; and a second phenol which is unsubstituted or a C1-20 linear or branched alkyl monophenol different from the first phenol, wherein the molar ratio of the first phenol relative to the second phenol is about 4:1 to about 1:4.
    Type: Application
    Filed: December 5, 2018
    Publication date: June 13, 2019
    Applicant: Baker Hughes, a GE company, LLC
    Inventors: Henry Nguyen, Jerry Weers, David Jennings, Kung-Po Chao, Joey Dacula Mangadlao