Patents by Inventor Liangwei Qu

Liangwei Qu 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: 20230064911
    Abstract: A method of inhibiting corrosion of a metal surface may include contacting the metal surface with a corrosion inhibitor compound that includes a substituted carboxamide.
    Type: Application
    Filed: May 27, 2020
    Publication date: March 2, 2023
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Liangwei Qu, Phillippe Prince, Nathan Darrell Davis
  • Patent number: 11225604
    Abstract: Composition for the removal or inactivation of hydrogen sulfide or soluble sulfide ion other species comprising ionizable sulfur (e.g., mercaptans, thiols, etc.) using compositions containing acrylate and/or derivatives thereof are provided. Methods for the removal or inactivation of hydrogen sulfide or other sulfur species in oilfield sites and other related applications using compositions containing acrylate and/or derivatives thereof are provided.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: January 18, 2022
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Liu Shi, Funian Zhao, Liangwei Qu, Michael Harless, Ron Hoppe
  • Patent number: 11078403
    Abstract: Systems, compositions, and methods for synergistic additives for use in the scavenging of sulfur-containing compounds encountered in oilfield operations are provided. In one embodiment, the methods comprise injecting a sulfide scavenging additive that does not comprise a significant amount of an aldehyde into at least a portion of a subterranean formation where one or more sulfur-containing species are present; and injecting a synergistic additive comprising at least one base into at least the portion of the subterranean formation.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: August 3, 2021
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Liu Shi, Funian Zhao, Liangwei Qu, Edward Corrin
  • Publication number: 20200239772
    Abstract: Composition for the removal or inactivation of hydrogen sulfide or soluble sulfide ion other species comprising ionizable sulfur (e.g., mercaptans, thiols, etc.) using compositions containing acrylate and/or derivatives thereof are provided. Methods for the removal or inactivation of hydrogen sulfide or other sulfur species in oilfield sites and other related applications using compositions containing acrylate and/or derivatives thereof are provided.
    Type: Application
    Filed: February 11, 2020
    Publication date: July 30, 2020
    Inventors: Liu Shi, Funian Zhao, Liangwei Qu, Michael Harless, Ron Hoppe
  • Patent number: 10668510
    Abstract: The present disclosure relates to compositions, systems and methods for removing iron sulfide scale from a solid object, such as an oilfield component. The compositions include a carbon-carbon (C—C) double bond with an electron withdrawing group bonded to at least one of the double-bonded carbons.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: June 2, 2020
    Assignee: Multi-Chem Group LLC.
    Inventors: Yang Peng, Funian Zhao, Zhiwei Yue, Liu Shi, Liangwei Qu, Chunfang Fan
  • Publication number: 20200115617
    Abstract: Systems, compositions, and methods for synergistic additives for use in the scavenging of sulfur-containing compounds encountered in oilfield operations are provided. In one embodiment, the methods comprise injecting a sulfide scavenging additive that does not comprise a significant amount of an aldehyde into at least a portion of a subterranean formation where one or more sulfur-containing species are present; and injecting a synergistic additive comprising at least one base into at least the portion of the subterranean formation.
    Type: Application
    Filed: December 16, 2019
    Publication date: April 16, 2020
    Inventors: Liu Shi, Funian Zhao, Liangwei Qu, Edward Corrin
  • Patent number: 10597582
    Abstract: Composition for the removal or inactivation of hydrogen sulfide or soluble sulfide ion other species comprising ionizable sulfur (e.g., mercaptans, thiols, etc.) using compositions containing acrylate and/or derivatives thereof are provided. Methods for the removal or inactivation of hydrogen sulfide or other sulfur species in oilfield sites and other related applications using compositions containing acrylate and/or derivatives thereof are provided.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: March 24, 2020
    Assignee: Multi-Chem Group, LLC
    Inventors: Liu Shi, Funian Zhao, Liangwei Qu, Michael Harless, Ron Hoppe
  • Patent number: 10590333
    Abstract: Surfactant compositions for enhancing oil and/or gas production from certain subterranean formations (e.g., unconventional reservoirs), and related methods of use, are provided. In one embodiment, the methods comprise: providing a treatment fluid comprising a carrier fluid and a cationic surfactant comprising at least two hydrophobic heads that each comprise a quaternary cationic moiety; and introducing the treatment fluid into at least a portion of a subterranean formation.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: March 17, 2020
    Assignee: Multi-Chem Group, LLC
    Inventors: Kai He, Funian Zhao, Liangwei Qu, Liang Xu
  • Patent number: 10584275
    Abstract: The present disclosure relates to compositions, systems and methods for removing iron sulfide scale from a solid object, such as an oilfield component. The compositions include a carbon-carbon (C—C) double bond with an electron withdrawing group bonded to at least one of the double-bonded carbons.
    Type: Grant
    Filed: April 20, 2015
    Date of Patent: March 10, 2020
    Assignee: Multi-Chem Group, LLC
    Inventors: Yang Peng, Zhiwei Yue, Funian Zhao, Liu Shi, Ronald Larry Hoppe, Liangwei Qu, Chunfang Fan
  • Patent number: 10550309
    Abstract: Systems, compositions, and methods for synergistic additives for use in the scavenging of sulfur-containing compounds encountered in oilfield operations are provided. In one embodiment, the methods comprise injecting a sulfide scavenging additive that does not comprise a significant amount of an aldehyde into at least a portion of a subterranean formation where one or more sulfur-containing species are present; and injecting a synergistic additive comprising at least one base into at least the portion of the subterranean formation.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: February 4, 2020
    Assignee: Multi-Chem Group, LLC
    Inventors: Liu Shi, Funian Zhao, Liangwei Qu, Edward Corrin
  • Patent number: 10526873
    Abstract: Compositions, treatment fluids, and methods for providing corrosion inhibition in subterranean operations, pipelines, and other related operations are provided. In one embodiment, the methods comprise providing a tagged corrosion-inhibiting additive that comprises an imidazoline-based compound bonded with a detectable moiety; and introducing the tagged corrosion-inhibiting additive into at least a portion of a subterranean formation or pipeline.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: January 7, 2020
    Assignee: Multi-Chem Group, LLC
    Inventors: Liangwei Qu, Nathan Darrell Davis
  • Patent number: 10364385
    Abstract: Low-dosage hydrate inhibitor (“LDHI”) compounds comprising multiple lipophilic tails and a hydrophilic head may be employed into fluids to inhibit agglomeration of hydrates, among other things. Suitable hydrophilic heads may include quaternary or tertiary ammonium cation moieties, and combinations thereof. Such LDHI compounds in some embodiments may include reaction products of DETA and/or other amines, fatty acid(s), and, optionally, alkyl halide(s). Compounds according to some embodiments may be employed in fluids in various environments, such as a conduit penetrating a subterranean formation, or a conduit carrying fluid in an industrial setting.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: July 30, 2019
    Assignee: Multi-Chem Group, LLC
    Inventors: Funian Zhao, Yanqiu Sun, Liangwei Qu, Erick J. Acosta
  • Patent number: 10246628
    Abstract: Compounds comprising multiple hydrophilic heads and a lipophilic tail may be contacted with a metal or other surface so as to adhere to the surface and inhibit corrosion, among other things. Suitable hydrophilic heads may include quaternary ammonium cation moieties, phosphonium cation moieties, and combinations thereof. Such corrosion-inhibiting compounds may be introduced into a wellbore penetrating at least a portion of a subterranean formation, for instance in oil and/or gas recovery operations and the like, whereupon the compound may adhere to a metal or other surface downhole so as to inhibit corrosion of the surface. These compounds may be employed in various other environments, such as any metal or other surface that may be exposed to corrosive conditions.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: April 2, 2019
    Assignee: MULTI-CHEM GROUP, LLC
    Inventors: Liangwei Qu, Nathan Darrell Davis, Funian Zhao, Qiang Fu
  • Publication number: 20180346794
    Abstract: Systems, compositions, and methods for synergistic additives for use in the scavenging of sulfur-containing compounds encountered in oilfield operations are provided. In one embodiment, the methods comprise injecting a sulfide scavenging additive that does not comprise a significant amount of an aldehyde into at least a portion of a subterranean formation where one or more sulfur-containing species are present; and injecting a synergistic additive comprising at least one base into at least the portion of the subterranean formation.
    Type: Application
    Filed: December 22, 2014
    Publication date: December 6, 2018
    Inventors: Liu Shi, Funian Zhao, Liangwei Qu, Edward Corrin
  • Publication number: 20180334610
    Abstract: Low-dosage hydrate inhibitor (“LDHI”) compounds comprising multiple lipophilic tails and a hydrophilic head may be employed into fluids to inhibit agglomeration of hydrates, among other things. Suitable hydrophilic heads may include quaternary or tertiary ammonium cation moieties, and combinations thereof. Such LDHI compounds in some embodiments may include reaction products of DETA and/or other amines, fatty acid(s), and, optionally, alkyl halide(s). Compounds according to some embodiments may be employed in fluids in various environments, such as a conduit penetrating a subterranean formation, or a conduit carrying fluid in an industrial setting.
    Type: Application
    Filed: July 31, 2018
    Publication date: November 22, 2018
    Inventors: Funian Zhao, Yanqui Sun, Liangwei Qu, Erick J. Acosta
  • Patent number: 10106721
    Abstract: Methods, compositions, and systems for scale inhibitor squeeze treatments using certain cationic surfactants are provided. In one embodiment, the methods comprise: introducing a pre-flush fluid into at least a portion of a subterranean formation, the pre-flush fluid comprising a cationic surfactant comprising two or more hydrophilic heads, at least one lipophilic tail, and one or more linking groups to which the hydrophilic heads and the lipophilic tail are bonded; and introducing a treatment fluid comprising anionic scale inhibitor into the portion of the subterranean formation after at least a portion of the pre-flush fluid has been introduced into the portion of the subterranean formation.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: October 23, 2018
    Assignee: Multi-Chem Group, LLC
    Inventors: Zhiwei Yue, Funian Zhao, Yang Peng, Liangwei Qu, Chunfang Fan
  • Patent number: 10059871
    Abstract: Low-dosage hydrate inhibitor (“LDHI”) compounds comprising multiple lipophilic tails and a hydrophilic head may be employed into fluids to inhibit agglomeration of hydrates, among other things. Suitable hydrophilic heads may include quaternary or tertiary ammonium cation moieties, and combinations thereof. Such LDHI compounds in some embodiments may include reaction products of DETA and/or other amines, fatty acid(s), and, optionally, alkyl halide(s). Compounds according to some embodiments may be employed in fluids in various environments, such as a conduit penetrating a subterranean formation, or a conduit carrying fluid in an industrial setting.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: August 28, 2018
    Assignee: Multi-Chem Group, LLC
    Inventors: Funian Zhao, Yanqui Sun, Liangwei Qu, Erick J. Acosta
  • Publication number: 20180169714
    Abstract: The present disclosure relates to compositions, systems and methods for removing iron sulfide scale from a solid object, such as an oilfield component. The compositions include a carbon-carbon (C—C) double bond with an electron withdrawing group bonded to at least one of the double-bonded carbons.
    Type: Application
    Filed: February 15, 2018
    Publication date: June 21, 2018
    Inventors: Yang Peng, Funian Zhao, Zhiwei Yue, Liu Shi, Liangwei Qu, Chunfang Fan
  • Patent number: 9919348
    Abstract: The present disclosure relates to compositions, systems and methods for removing iron sulfide scale from a solid object, such as an oilfield component. The compositions include a carbon-carbon (C—C) double bond with an electron withdrawing group bonded to at least one of the double-bonded carbons.
    Type: Grant
    Filed: April 20, 2015
    Date of Patent: March 20, 2018
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Yang Peng, Funian Zhao, Zhiwei Yue, Liu Shi, Liangwei Qu, Chunfang Fan
  • Publication number: 20180072940
    Abstract: The present disclosure relates to compositions, systems and methods for removing iron sulfide scale from a solid object, such as an oilfield component. The compositions include a carbon-carbon (C—C) double bond with an electron withdrawing group bonded to at least one of the double-bonded carbons.
    Type: Application
    Filed: April 20, 2015
    Publication date: March 15, 2018
    Inventors: Yang Peng, Zhiwei Yue, Funian Zhao, Liu Shi, Ronald Larry Hoppe, Liangwei Qu, Chunfang Fan