Patents by Inventor Manohara Gudiyor Veerabhadrappa

Manohara Gudiyor Veerabhadrappa 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: 11351604
    Abstract: Methods for preparing a layered metal nanocomposite and a layered metal nanocomposite. The method includes mixing a magnesium salt and an aluminum salt to form a Mg2+/Al3+ solution. The Mg/Al has a molar ratio of between 0.5:1 to 6:1. Then a diamondoid compound is added to the Mg2+/Al3+ solution to form a reactant mixture. The diamondoid compound has at least one carboxylic acid moiety. The reactant mixture is heated at a reaction temperature for a reaction time to form a Mg/Al-diamondoid intercalated layered double hydroxide. The Mg/Al-diamondoid intercalated layered double hydroxide is thermally decomposed under a reducing atmosphere for a decomposition time at a decomposition temperature to form the layered metal nanocomposite.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: June 7, 2022
    Assignees: Saudi Arabian Oil Company, Durham University
    Inventors: Manohara Gudiyor Veerabhadrappa, Hugh Christopher Greenwell, Andrew Whiting, John Adrian Hall, Gasan Alabedi
  • Patent number: 10988659
    Abstract: A method of preparing and a composition of an oil-based drilling fluid. An oil-based drilling fluid includes a base oil continuous phase, in which the base oil continuous phase includes a base oil, an aqueous dispersed phase, and at least one rheology modifier comprising a modified magnesium/aluminum carbonate layered-double hydroxide (Mg/Al—CO3 LDH) compound.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: April 27, 2021
    Assignees: Saudi Arabian Oil Company, Durham University, M-I Drilling Fluids UK Ltd
    Inventors: Musarrat Halima Mohammed, Andrew Whiting, Hugh Christopher Greenwell, Manohara Gudiyor Veerabhadrappa, John Adrian Hall, Gasan Selman Alabedi, Michael Hayward Hodder
  • Publication number: 20210086261
    Abstract: Methods for preparing a layered metal nanocomposite and a layered metal nanocomposite. The method includes mixing a magnesium salt and a aluminum salt to form a Mg2+/Al3+ solution. The Mg/Al has a molar ratio of between 0.5:1 to 6:1. Then a diamondoid compound is added to the Mg2+/Al3+ solution to form a reactant mixture. The diamondoid compound has at least one carboxylic acid moiety. The reactant mixture is heated at a reaction temperature for a reaction time to form a Mg/Al-diamondoid intercalated layered double hydroxide. The Mg/Al-diamondoid intercalated layered double hydroxide is thermally decomposed under a reducing atmosphere for a decomposition time at a decomposition temperature to form the layered metal nanocomposite.
    Type: Application
    Filed: November 23, 2020
    Publication date: March 25, 2021
    Applicants: Saudi Arabian Oil Company, Durham University
    Inventors: Manohara Gudiyor Veerabhadrappa, Hugh Christopher Greenwell, Andrew Whiting, John Adrian Hall, Gasan Alabedi
  • Patent number: 10906859
    Abstract: Embodiments are directed to adamantane-intercalated layered double-hydroxide (LDH) particles and the methods of producing adamantane-intercalated LDH particles. The adamantane-intercalated LDH particles have a general formula defined by [M1-xAlx(OH)2](A)x.mH2O, where x is from 0.14 to 0.33, m is from 0.33 to 0.50, M is chosen from Mg, Ca, Co, Ni, Cu, or Zn, and A is adamantane carboxylate. The adamantane-intercalated LDH particles further have an aspect ratio greater than 100. The aspect ratio is defined by the width of an adamantane-intercalated LDH particle divided by the thickness of the adamantane-intercalated LDH particle.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: February 2, 2021
    Assignees: Saudi Arabian Oil Company, Durahm University
    Inventors: Manohara Gudiyor Veerabhadrappa, Hugh Christopher Greenwell, Gasan Selman Alabedi, John Adrian Hall, Abdullah A. Al-Shahrani, Andrew Whiting
  • Patent number: 10906028
    Abstract: A method for preparing a transition-metal adamantane carboxylate salt is presented. The method includes mixing a transition-metal hydroxide and a diamondoid compound having at least one carboxylic acid moiety to form a reactant mixture, where M is a transition metal. Further, the method includes hydrothermally treating the reactant mixture at a reaction temperature for a reaction time to form the transition-metal adamantane carboxylate salt.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: February 2, 2021
    Assignees: Saudi Arabian Oil Company, Durham University
    Inventors: Manohara Gudiyor Veerabhadrappa, Hugh Christopher Greenwell, Andrew Whiting, John Adrian Hall, Gasan Alabedi
  • Patent number: 10875092
    Abstract: Methods for preparing a layered metal nanocomposite and a layered metal nanocomposite. The method includes mixing a magnesium salt and a aluminum salt to form a Mg2+/Al3+ solution. The Mg/Al has a molar ratio of between 0.5:1 to 6:1. Then a diamondoid compound is added to the Mg2+/Al3+ solution to form a reactant mixture. The diamondoid compound has at least one carboxylic acid moiety. The reactant mixture is heated at a reaction temperature for a reaction time to form a Mg/Al-diamondoid intercalated layered double hydroxide. The Mg/Al-diamondoid intercalated layered double hydroxide is thermally decomposed under a reducing atmosphere for a decomposition time at a decomposition temperature to form the layered metal nanocomposite.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: December 29, 2020
    Assignees: Saudi Arabian Oil Company, Durham University
    Inventors: Manohara Gudiyor Veerabhadrappa, Hugh Christopher Greenwell, Andrew Whiting, John Adrian Hall, Gasan Alabedi
  • Patent number: 10793762
    Abstract: A drilling fluid and a method of preparing the drilling fluid. The oil-based drilling fluid includes a base oil continuous phase comprising a base oil, an aqueous dispersed phase and at least one rheology modifier. The at least one rheology modifier includes a magnesium/aluminum (Mg/Al) layered-double hydroxide (LDH) diamondoid compound.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: October 6, 2020
    Assignees: Saudi Arabian Oil Company, Durham University, M-I Drilling Fluids UK Ltd
    Inventors: Musarrat Halima Mohammed, Andrew Whiting, Hugh Christopher Greenwell, Manohara Gudiyor Veerabhadrappa, John Adrian Hall, Gasan Selman Alabedi, Michael Hayward Hodder
  • Patent number: 10745606
    Abstract: The present application discloses drilling fluid compositions, methods for making drilling fluids, and methods for drilling subterranean wells utilizing the drilling fluids. According to one embodiment, a drilling fluid composition may include an oil phase, an aqueous phase, and a rheology modifier. The rheology modifier may include a layered double hydroxide, such as Mg/Al-Myristate layered double hydroxide.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: August 18, 2020
    Assignees: Saudi Arabian Oil Company, Durham University, M-I Drilling Fluids UK Ltd
    Inventors: Musarrat Halima Mohammed, Andrew Whiting, Manohara Gudiyor Veerabhadrappa, Hugh Christopher Greenwell, John Adrian Hall, Gasan Selman Alabedi, Michael Hayward Hodder
  • Patent number: 10647903
    Abstract: The present application discloses drilling fluid compositions, methods for making drilling fluids, and methods for drilling subterranean wells utilizing the drilling fluids. According to one embodiment, a drilling fluid composition may include an oil phase, an aqueous phase, an emulsifier, and a rheology modifier. The emulsifier may include an amino amide, and the rheology modifier may include a layered double hydroxide, such as Mg/Al-Myristate layered double hydroxide.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: May 12, 2020
    Assignees: Saudi Arabian Oil Company, Durham University, M-I Drilling Fluids UK Ltd
    Inventors: Musarrat Halima Mohammed, Andrew Whiting, Mona Al Batal, Manohara Gudiyor Veerabhadrappa, Hugh Christopher Greenwell, John Adrian Hall, Gasan Selman Alabedi, Michael Hayward Hodder
  • Patent number: 10252245
    Abstract: Embodiments of the present disclosure are directed towards methods for preparing mixed-metal oxide particles by heating adamantane-intercalated layered double-hydroxide (LDH) particles at a reaction temperature of from 400° C. to 800° C. to form mixed-metal oxide particles. The adamantane-intercalated LDH particles have a general formula [M1-xAlx(OH)2](A)x.mH2O, where x is from 0.14 to 0.33, m is from 0.33 to 0.50, M is chosen from Mg, Ca, Co, Ni, Cu, or Zn, and A is adamantane carboxylate, and an aspect ratio greater than 100. The aspect ratio is defined by the width of an adamantane-intercalated LDH particle divided by the thickness of the adamantane-intercalated LDH particle. The mixed-metal oxide particles comprise a mixed-metal oxide phase containing M, Al or Fe, and carbon.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: April 9, 2019
    Assignees: Saudi Arabian Oil Company, Durham University
    Inventors: Manohara Gudiyor Veerabhadrappa, Hugh Christopher Greenwell, Gasan Selman Alabedi, John Adrian Hall, Andrew Whiting
  • Publication number: 20190055450
    Abstract: A method of preparing and a composition of an oil-based drilling fluid. An oil-based drilling fluid includes a base oil continuous phase, in which the base oil continuous phase includes a base oil, an aqueous dispersed phase, and at least one rheology modifier comprising a modified magnesium/aluminum carbonate layered-double hydroxide (Mg/Al—CO3 LDH) compound.
    Type: Application
    Filed: August 7, 2018
    Publication date: February 21, 2019
    Applicants: Saudi Arabian Oil Company, Durham University, M-I Drilling Fluids UK Ltd
    Inventors: Musarrat Halima Mohammed, Andrew Whiting, Hugh Christopher Greenwell, Manohara Gudiyor Veerabhadrappa, John Adrian Hall, Gasan Selman Alabedi, Michael Hayward Hodder
  • Publication number: 20190055453
    Abstract: The present application discloses drilling fluid compositions, methods for making drilling fluids, and methods for drilling subterranean wells utilizing the drilling fluids. According to one embodiment, a drilling fluid composition may include an oil phase, an aqueous phase, and a rheology modifier. The rheology modifier may include a layered double hydroxide, such as Mg/Al-Myristate layered double hydroxide.
    Type: Application
    Filed: August 9, 2018
    Publication date: February 21, 2019
    Applicants: Saudi Arabian Oil Company, Durham University, M-I Drilling Fluids UK Ltd
    Inventors: Musarrat Halima Mohammed, Andrew Whiting, Manohara Gudiyor Veerabhadrappa, Hugh Christopher Greenwell, John Adrian Hall, Gasan Selman Alabedi, Michael Hayward Hodder
  • Publication number: 20190055451
    Abstract: A drilling fluid and a method of preparing the drilling fluid. The oil-based drilling fluid includes a base oil continuous phase comprising a base oil, an aqueous dispersed phase and at least one rheology modifier. The at least one rheology modifier includes a magnesium/aluminum (Mg/Al) layered-double hydroxide (LDH) diamondoid compound.
    Type: Application
    Filed: August 7, 2018
    Publication date: February 21, 2019
    Applicants: Saudi Arabian Oil Company, Durham University, M-I Drilling Fluids UK Ltd
    Inventors: Musarrat Halima Mohammed, Andrew Whiting, Hugh Christopher Greenwell, Manohara Gudiyor Veerabhadrappa, John Adrian Hall, Gasan Selman Alabedi, Michael Hayward Hodder
  • Publication number: 20190055452
    Abstract: The present application discloses drilling fluid compositions, methods for making drilling fluids, and methods for drilling subterranean wells utilizing the drilling fluids. According to one embodiment, a drilling fluid composition may include an oil phase, an aqueous phase, an emulsifier, and a rheology modifier. The emulsifier may include an amino amide, and the rheology modifier may include a layered double hydroxide, such as Mg/Al-Myristate layered double hydroxide.
    Type: Application
    Filed: August 9, 2018
    Publication date: February 21, 2019
    Applicants: Saudi Arabian Oil Company, Durham University, M-I Drilling Fluids UK Ltd
    Inventors: Musarrat Halima Mohammed, Andrew Whiting, Mona Al Batal, Manohara Gudiyor Veerabhadrappa, Hugh Christopher Greenwell, John Adrian Hall, Gasan Selman Alabedi, Michael Hayward Hodder
  • Publication number: 20190039988
    Abstract: Embodiments are directed to adamantane-intercalated layered double-hydroxide (LDH) particles and the methods of producing adamantane-intercalated LDH particles. The adamantane-intercalated LDH particles have a general formula defined by [M1-xAlx(OH)2](A)x.mH2O, where x is from 0.14 to 0.33, m is from 0.33 to 0.50, M is chosen from Mg, Ca, Co, Ni, Cu, or Zn, and A is adamantane carboxylate. The adamantane-intercalated LDH particles further have an aspect ratio greater than 100. The aspect ratio is defined by the width of an adamantane-intercalated LDH particle divided by the thickness of the adamantane-intercalated LDH particle.
    Type: Application
    Filed: October 11, 2018
    Publication date: February 7, 2019
    Applicants: Saudi Arabian Oil Company, Durahm University
    Inventors: Manohara Gudiyor Veerabhadrappa, Hugh Christopher Greenwell, Gasan Selman Alabedi, John Adrian Hall, Abdullah A. Al-Shahrani, Andrew Whiting
  • Patent number: 10138199
    Abstract: Embodiments are directed to adamantane-intercalated layered double-hydroxide (LDH) particles and the methods of producing adamantane-intercalated LDH particles. The method comprises adding to an aqueous solution a first precursor and a second precursor to form an initial mixture, where the first precursor is Al(OH)3 or Al2O3, the second precursor is a hydroxide M(OH)2 or an oxide MO, where M is a metal of oxidation state +2; and the initial mixture has a M/Al molar ratio of from 1 to 5. The method also comprises adding to the initial mixture an amount of adamantane to form a reaction mixture having an Al/adamantane molar ratio of from 0.5 to 2; and heating the reaction mixture to produce adamantane-intercalated LDH particles, where the adamantane-intercalated LDH particles have aspect ratios greater than 100.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: November 27, 2018
    Assignees: Saudi Arabian Oil Company, Durham University
    Inventors: Manohara Gudiyor Veerabhadrappa, Hugh Christopher Greenwell, Gasan Selman Alabedi, John Adrian Hall, Abdullah A. Al-Shahrani, Andrew Whiting
  • Publication number: 20180333701
    Abstract: A method for preparing a transition-metal adamantane carboxylate salt is presented. The method includes mixing a transition-metal hydroxide and a diamondoid compound having at least one carboxylic acid moiety to form a reactant mixture, where M is a transition metal. Further, the method includes hydrothermally treating the reactant mixture at a reaction temperature for a reaction time to form the transition-metal adamantane carboxylate salt.
    Type: Application
    Filed: May 4, 2018
    Publication date: November 22, 2018
    Applicants: Saudi Arabian Oil Company, Durham University
    Inventors: Manohara Gudiyor Veerabhadrappa, Hugh Christopher Greenwell, Andrew Whiting, John Adrian Hall, Gasan Alabedi
  • Publication number: 20180333776
    Abstract: Methods for preparing a layered metal nanocomposite and a layered metal nanocomposite. The method includes mixing a magnesium salt and a aluminum salt to form a Mg2+/Al3+ solution. The Mg/Al has a molar ratio of between 0.5:1 to 6:1. Then a diamondoid compound is added to the Mg2+/Al3+ solution to form a reactant mixture. The diamondoid compound has at least one carboxylic acid moiety. The reactant mixture is heated at a reaction temperature for a reaction time to form a Mg/Al-diamondoid intercalated layered double hydroxide. The Mg/Al-diamondoid intercalated layered double hydroxide is thermally decomposed under a reducing atmosphere for a decomposition time at a decomposition temperature to form the layered metal nanocomposite.
    Type: Application
    Filed: April 30, 2018
    Publication date: November 22, 2018
    Applicants: Saudi Arabian Oil Company, Durham University
    Inventors: Manohara Gudiyor Veerabhadrappa, Hugh Christopher Greenwell, Andrew Whiting, John Adrian Hall, Gasan Alabedi
  • Patent number: 10106482
    Abstract: A method for preparing a magnesium adamantane carboxylate salt is provided. The method includes mixing a magnesium salt and a diamondoid compound having at least one carboxylic acid moiety to form a reactant mixture and hydrothermally treating the reactant mixture at a reaction temperature for a reaction time to form the magnesium adamantane carboxylate salt.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: October 23, 2018
    Assignees: Saudi Arabian Oil Company, Durham University
    Inventors: Manohara Gudiyor Veerabhadrappa, Hugh Christopher Greenwell, Gasan Selman Alabedi, John Adrian Hall, Andrew Whiting
  • Patent number: 10105684
    Abstract: A method for preparing a transition-metal adamantane carboxylate salt is presented. The method includes mixing a transition-metal hydroxide and a diamondoid compound having at least one carboxylic acid moiety to form a reactant mixture, where M is a transition metal. Further, the method includes hydrothermally treating the reactant mixture at a reaction temperature for a reaction time to form the transition-metal adamantane carboxylate salt.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: October 23, 2018
    Assignees: Saudi Arabian Oil Company, Durham University
    Inventors: Manohara Gudiyor Veerabhadrappa, Hugh Christopher Greenwell, Gasan Selman Alabedi, John Adrian Hall, Andrew Whiting