Patents by Inventor Nathan Darrell Davis
Nathan Darrell Davis 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).
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Publication number: 20230064911Abstract: 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: ApplicationFiled: May 27, 2020Publication date: March 2, 2023Applicant: Halliburton Energy Services, Inc.Inventors: Liangwei Qu, Phillippe Prince, Nathan Darrell Davis
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Patent number: 11542426Abstract: Methods for providing corrosion inhibition in conduits, containers, and wellbores penetrating subterranean formations are provided. In some embodiments, the methods comprise contacting a metal surface with a fluid comprising a corrosion inhibitor additive. In certain embodiments, the corrosion inhibitor additive comprises a compound comprising a hydrophobic cation moiety, one or more lipophilic tails, and a linking moiety.Type: GrantFiled: September 29, 2017Date of Patent: January 3, 2023Assignee: Halliburton Energy Services, Inc.Inventors: Qiang Lan, Nathan Darrell Davis
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Publication number: 20220372362Abstract: A method is disclosed that includes introducing one or more dual function inhibitor compounds through an umbilical into a deepwater environment such that the one or more dual function inhibitor compounds are introduced into a fluid in the deepwater environment. The dual function inhibitor is a corrosion inhibitor and a hydrate inhibitor.Type: ApplicationFiled: April 28, 2020Publication date: November 24, 2022Applicant: Halliburton Energy Services, Inc.Inventors: Loan K. Vo, Philippe Prince, Nathan Darrell Davis
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Patent number: 11414592Abstract: Methods and compositions for treating aqueous fluids that may be included in treatment fluids that are used for treating a subterranean formation. In some embodiments, the methods include: providing a treatment fluid including an aqueous fluid and a composition that includes an oxygen scavenger, a pH-adjusting agent, and a corrosion inhibitor, wherein the aqueous fluid is aerated; contacting a metal surface with the treatment fluid; and introducing the treatment fluid into a wellbore penetrating at least a portion of a subterranean formation.Type: GrantFiled: February 5, 2020Date of Patent: August 16, 2022Assignee: Halliburton Energy Services, Inc.Inventors: Nathan Darrell Davis, Philippe Prince
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Publication number: 20210332287Abstract: A method is disclosed that includes introducing one or more dual function inhibitor compounds through an umbilical into a deepwater environment such that the one or more dual function inhibitor compounds are introduced into a fluid in the deepwater environment. The dual function inhibitor is a corrosion inhibitor and a hydrate inhibitor.Type: ApplicationFiled: April 28, 2020Publication date: October 28, 2021Applicant: Multi-Chem Group, LLCInventors: Loan K. Vo, Philippe Prince, Nathan Darrell Davis
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Publication number: 20210079290Abstract: Methods for providing corrosion inhibition in conduits, containers, and wellbores penetrating subterranean formations are provided. In some embodiments, the methods comprise contacting a metal surface with a fluid comprising a corrosion inhibitor additive. In certain embodiments, the corrosion inhibitor additive comprises a compound comprising a hydrophobic cation moiety, one or more lipophilic tails, and a linking moiety.Type: ApplicationFiled: September 29, 2017Publication date: March 18, 2021Inventors: Qiang Lan, Nathan Darrell Davis
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Patent number: 10913887Abstract: A method for inhibiting erosion (wear)-corrosion of downhole components in a secondary lift system, the method comprising: introducing a corrosion inhibitor and a lubricating agent into a wellbore; allowing the corrosion inhibitor and the lubricating agent to mix with a produced fluid to form a mixture; and recovering the mixture from the wellbore through a production tubing, wherein the corrosion inhibitor and/or the lubricating agent contact one or more of the downhole components of the secondary lift system. A system for inhibiting wear in secondary recovery comprising: a casing disposed in a producing wellbore; a production tubing extending into the casing; a downhole equipment disposed in the production tubing, wherein the downhole equipment comprises at least one equipment selected from the group consisting of a sucker rod, a plunger, and an electrical submersible pump; a treatment fluid for introduction into an annulus disposed between the casing and the production tubing.Type: GrantFiled: May 7, 2018Date of Patent: February 9, 2021Assignee: Multi-Chem Group, LLCInventor: Nathan Darrell Davis
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Publication number: 20200347286Abstract: Methods and compositions for treating aqueous fluids that may be included in treatment fluids that are used for treating a subterranean formation. In some embodiments, the methods include: providing a treatment fluid including an aqueous fluid and a composition that includes an oxygen scavenger, a pH-adjusting agent, and a corrosion inhibitor, wherein the aqueous fluid is aerated; contacting a metal surface with the treatment fluid; and introducing the treatment fluid into a wellbore penetrating at least a portion of a subterranean formation.Type: ApplicationFiled: February 5, 2020Publication date: November 5, 2020Inventors: Nathan Darrell Davis, Philippe Prince
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Patent number: 10526873Abstract: 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: GrantFiled: May 16, 2014Date of Patent: January 7, 2020Assignee: Multi-Chem Group, LLCInventors: Liangwei Qu, Nathan Darrell Davis
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Publication number: 20190338180Abstract: A method for inhibiting erosion (wear)-corrosion of downhole components in a secondary lift system, the method comprising: introducing a corrosion inhibitor and a lubricating agent into a wellbore; allowing the corrosion inhibitor and the lubricating agent to mix with a produced fluid to form a mixture; and recovering the mixture from the wellbore through a production tubing, wherein the corrosion inhibitor and/or the lubricating agent contact one or more of the downhole components of the secondary lift system. A system for inhibiting wear in secondary recovery comprising: a casing disposed in a producing wellbore; a production tubing extending into the casing; a downhole equipment disposed in the production tubing, wherein the downhole equipment comprises at least one equipment selected from the group consisting of a sucker rod, a plunger, and an electrical submersible pump; a treatment fluid for introduction into an annulus disposed between the casing and the production tubing.Type: ApplicationFiled: May 7, 2018Publication date: November 7, 2019Applicant: Multi-Chem Group, LLCInventor: Nathan Darrell Davis
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Patent number: 10246628Abstract: 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: GrantFiled: March 22, 2017Date of Patent: April 2, 2019Assignee: MULTI-CHEM GROUP, LLCInventors: Liangwei Qu, Nathan Darrell Davis, Funian Zhao, Qiang Fu
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Publication number: 20170190952Abstract: 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: ApplicationFiled: March 22, 2017Publication date: July 6, 2017Inventors: Liangwei Qu, Nathan Darrell Davis, Funian Zhao, Qiang Fu
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Publication number: 20170122078Abstract: 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: ApplicationFiled: May 16, 2014Publication date: May 4, 2017Inventors: Liangwei QU, Nathan Darrell DAVIS
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Patent number: 9637679Abstract: 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: GrantFiled: May 5, 2014Date of Patent: May 2, 2017Assignee: Halliburton Energy Services, Inc.Inventors: Liangwei Qu, Nathan Darrell Davis, Funian Zhao, Qiang Fu
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Publication number: 20160215198Abstract: 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: ApplicationFiled: May 5, 2014Publication date: July 28, 2016Inventors: Liangwei Qu, Nathan Darrell Davis, Funian Zhao, Qiang Fu