Patents by Inventor Gaurav Agrawal

Gaurav Agrawal 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: 8829119
    Abstract: A crosslinked product of a polyarylene is disclosed, having high-temperature elastomeric properties and excellent chemical resistance. The crosslinked materials are useful in oil and gas downhole applications in the form of either solids or foams. Methods for the manufacture of the crosslinked product and articles comprising the product are also disclosed.
    Type: Grant
    Filed: September 27, 2011
    Date of Patent: September 9, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Ping Duan, Gaurav Agrawal, David P. Gerrard
  • Publication number: 20140246250
    Abstract: Method of fabricating polycrystalline diamond include functionalizing surfaces of diamond nanoparticles with fluorine, combining the functionalized diamond nanoparticles with a polymer to form a mixture, and subjecting the mixture to high pressure and high temperature (HPHT) conditions to form inter-granular bonds between the diamond nanoparticles. A green body includes a plurality of diamond nanoparticles functionalized with fluorine, and a polymer material interspersed with the plurality of diamond nanoparticles. A method of forming cutting element includes functionalizing surfaces of diamond nanoparticles with fluorine, and combining the functionalized diamond nanoparticles with a polymer to form a mixture. The mixture is formed over a body, and the mixture and the body are subjected to HPHT conditions to form inter-granular bonds between the diamond nanoparticles and secure the bonded diamond nanoparticles to the body.
    Type: Application
    Filed: March 1, 2013
    Publication date: September 4, 2014
    Inventors: Valery N. Khabashesku, Anthony A. DiGiovanni, Gaurav Agrawal
  • Patent number: 8784520
    Abstract: Methods of treating a plurality of particles involve functionalizing a plurality of microscale diamond particles by covalently bonding one or more molecular groups selected from OH functional groups, —COOH functional groups, —R—COOH functional groups, wherein R includes alkyls, -Ph-COOH functional groups, wherein Ph includes phenolics, polymers, oligomers, monomers, glycols, sugars, ionic functional groups, metallic functional groups, and organo-metallic functional groups to outer surfaces of at least some particles of the plurality of microscale diamond particles. A stability of the functionalized plurality of microscale diamond particles in dispersion is increased as compared to a plurality of microscale diamond particles that has not been functionalized.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: July 22, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Soma Chakraborty, Gaurav Agrawal
  • Publication number: 20140187449
    Abstract: Removing an asphaltene particle from a substrate includes contacting a silicate nanoparticle with a chemical group to form a functionalized silicate nanoparticle, the chemical group includes a first portion; and a second portion comprising an aromatic moiety, the first portion being bonded to the silicate nanoparticle; contacting the asphaltene particle with the functionalized silicate nanoparticle, the asphaltene particle being disposed on the substrate; interposing the functionalized silicate nanoparticle between the asphaltene particle and the substrate; and separating the asphaltene particle from the substrate with the functionalized silicate nanoparticle to remove the asphaltene particle. A composition includes a functionalized silicate nanoparticle comprising a reaction product of a silicate nanoparticle and an aromatic compound; and a fluid.
    Type: Application
    Filed: December 31, 2012
    Publication date: July 3, 2014
    Applicant: Baker Hughes Incorporated
    Inventors: Valery Khabashesku, Oleg Mazyar, Soma Chakraborty, Gaurav Agrawal, Toby D. Hain
  • Patent number: 8720570
    Abstract: A method of mitigating corrosion of downhole articles includes mixing a plurality of nanoparticles into a first downhole fluid to form a nanoparticle fluid. The method also includes exposing a surface of a downhole article in a wellbore to the nanoparticle fluid. The method further includes disposing a barrier layer comprising a portion of the nanoparticles on the surface of the article and exposing the surface of the downhole article to a second downhole fluid, wherein the barrier layer is disposed between the second downhole fluid and the surface of the article.
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: May 13, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Kushal Seth, Soma Chakraborty, Allen Grabrysch, Gaurav Agrawal
  • Patent number: 8722784
    Abstract: A polymer nanocomposite comprises a polymer; and a nanoparticle derivatized to include functional groups including carboxy, epoxy, ether, ketone, amine, hydroxy, alkoxy, alkyl, aryl, aralkyl, alkaryl, lactone, functionalized polymeric or oligomeric groups, or a combination comprising at least one of the forgoing functional groups. The variability in tensile strength and percent elongation for the polymer nanocomposite is less than the variability of these properties obtained where an underivatized nanoparticle is included in place of the derivatized nanoparticle.
    Type: Grant
    Filed: May 3, 2012
    Date of Patent: May 13, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Soma Chakraborty, Ping Duan, Gaurav Agrawal, Michael H Johnson
  • Patent number: 8714268
    Abstract: A method for making a tripping ball comprising configuring two or more parts to collectively make up a portion of a tripping ball; and assembling the two or more parts by adhering the two or more parts together with an adherent dissolvable material to form the tripping ball, the adherent dissolvable material operatively arranged to dissolve for enabling the two or more parts to separate from each other. A method of performing a pressure operation with a tripping ball is also included.
    Type: Grant
    Filed: October 26, 2012
    Date of Patent: May 6, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Gaurav Agrawal, Zhiyue Xu
  • Patent number: 8678098
    Abstract: An actuator includes: a carrier including an axially elongated fluid conduit therein, the fluid conduit configured to received a ball therein; and an axially elongated ball receiving element, wherein one of the ball and the ball receiving element is configured to produce a magnetic field, and another of the ball and the ball receiving element includes an electrically conductive material, the ball and the ball receiving element configured so that the electrically conductive material is exposed to the magnetic field as the ball advances through the ball receiving element, and eddy currents are generated in the electrically conductive material that cause a repulsive force between the ball receiving element and the ball to at least one of reduce a velocity of the ball and actuate the ball receiving element.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: March 25, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Mohan L. Soni, Gaurav Agrawal
  • Patent number: 8678100
    Abstract: A method of deploying a downhole article comprising a shape memory material, the shape memory material comprising a nanoparticle having greater thermal conductivity than an identical shape memory material but without the nanoparticle; the method comprising heating the article while in a compacted state to change the article to a non-compacted state. A method of deploying the downhole article where the article is a packer element is also disclosed.
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: March 25, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Randall V. Guest, Soma Chakraborty, Gaurav Agrawal, Don C. Cox, Xiao Wei Wang
  • Publication number: 20130334100
    Abstract: A method for upgrading a heavy oil includes: disposing an initiator in a heavy oil environment, the heavy oil environment including a heavy oil; producing a radical from the initiator; contacting the heavy oil with the radical; and converting the heavy oil to upgraded oil.
    Type: Application
    Filed: June 19, 2012
    Publication date: December 19, 2013
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Oleg A. Mazyar, Gaurav Agrawal
  • Publication number: 20130334098
    Abstract: A method for decomposing an asphaltene particle includes contacting the asphaltene particle with an intercalating agent; and reacting the intercalating agent to increase a distance between asphaltene molecules in the asphaltene particle to decompose the asphaltene particle. In a method for producing decomposed asphaltene, the method includes disposing an intercalating agent in an oil environment; contacting an asphaltene particle in the oil environment with the intercalating agent; reacting the intercalating agent to produce product molecules; and decomposing the asphaltene particle to produce decomposed asphaltene.
    Type: Application
    Filed: June 19, 2012
    Publication date: December 19, 2013
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Oleg A. Mazyar, Gaurav Agrawal
  • Publication number: 20130284425
    Abstract: A dissolvable tool includes, a body with a surface having at least one perforation therethrough, the at least one perforation being dimensioned to control a rate of intrusion of an environment reactive with at least a portion of the dissolvable tool located below the surface.
    Type: Application
    Filed: June 26, 2013
    Publication date: October 31, 2013
    Applicant: Baker Hughes Incorporated
    Inventors: Gaurav Agrawal, Zhiyue Xu
  • Patent number: 8528633
    Abstract: A method of dissolving a tool includes positioning the tool within an environment reactive with at least a portion of the tool, and introducing the environment below a surface of the tool through at least one perforation formed therein. The method also includes reacting at least a portion of the tool exposed to the environment through the at least one perforation, weakening the tool to mechanical stress, and fracturing the tool.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: September 10, 2013
    Assignee: Baker Hughes Incorporated
    Inventors: Gaurav Agrawal, Zhiyue Xu
  • Patent number: 8528640
    Abstract: An embodiment of an apparatus may include a permeable member made by combining a particulate additive to one or more materials, which materials when processed without the particulate additive form a substantially impermeable mass, wherein the permeable member inhibits flow of solid particles above a particular size through the permeable member.
    Type: Grant
    Filed: September 22, 2009
    Date of Patent: September 10, 2013
    Assignee: Baker Hughes Incorporated
    Inventor: Gaurav Agrawal
  • Publication number: 20130220883
    Abstract: A method for decomposing an asphaltene particle includes contacting the asphaltene particle with an intercalating agent and separating an asphaltene molecule from the asphaltene particle to decompose the asphaltene particle. Dispersing an asphaltene particle includes functionalizing the asphaltene particle and contacting the asphaltene particle with a solvent to disperse the asphaltene particle. Such asphaltene particle decomposition and dispersal can be used in a method for improving oil recovery that includes disposing a reagent in an oil environment; contacting an asphaltene particle with the reagent; decomposing the asphaltene particle to produce decomposed asphaltene; and displacing the decomposed asphaltene to improve oil recovery.
    Type: Application
    Filed: February 24, 2012
    Publication date: August 29, 2013
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Oleg A. Mazyar, Houman M. Shammai, Gaurav Agrawal
  • Publication number: 20130175026
    Abstract: A downhole filter comprising includes an open cell foam; and nanoparticles disposed in the open cell foam and exposed within pores of the open cell foam. A method of preparing the downhole filter includes combining a polyisocyanate and polyol to form a polymer composition; introducing nanoparticles into the polymer composition; and foaming the polymer composition to produce the downhole filter comprising an open cell foam having nanoparticles exposed within pores of the open cell foam. The nanoparticles can be derivatized with functional groups.
    Type: Application
    Filed: January 11, 2012
    Publication date: July 11, 2013
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Soma Chakraborty, Michael H. Johnson, Gaurav Agrawal
  • Publication number: 20130168894
    Abstract: Disclosed is a process for making shape memory polyphenylene sulfide, comprising: curing polyphenylene sulfide to produce cured polyphenylene sulfide; comminuting the cured polyphenylene sulfide to form cured polyphenylene sulfide particles; disposing the cured polyphenylene sulfide particles in a mold; heating the mold for flowing the cured polyphenylene sulfide; compressing, by applying a compressive force, the cured polyphenylene sulfide; cooling the cured polyphenylene sulfide; relieving the compressive force; and de-molding the cured polyphenylene sulfide to produce the shape memory polyphenylene sulfide.
    Type: Application
    Filed: January 4, 2012
    Publication date: July 4, 2013
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Jiaxiang Ren, David P. Gerrard, James E. Goodson, Ping Duan, Gaurav Agrawal
  • Publication number: 20130165353
    Abstract: A nanocomposite comprises a matrix; and a nanoparticle comprising an ionic polymer disposed on the surface of the nanoparticle, the nanoparticle being dispersed in and/or disposed on the matrix. A method of making a nanocomposite, comprises combining a nanoparticle and an ionic liquid; polymerizing the ionic liquid to form an ionic polymer; disposing the ionic polymer on the nanoparticle; and combining the nanoparticle with the ionic polymer and a matrix to form the nanocomposite.
    Type: Application
    Filed: December 21, 2011
    Publication date: June 27, 2013
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Oleg A. Mazyar, Michael H. Johnson, Soma Chakraborty, Gaurav Agrawal
  • Publication number: 20130160992
    Abstract: A dissolvable tool includes a body having at least one stress riser configured to concentrate stress thereat to accelerate structural degradation of the body through chemical reaction under applied stress within a reactive environment.
    Type: Application
    Filed: February 20, 2013
    Publication date: June 27, 2013
    Applicant: Baker Hughes Incorporated
    Inventors: Gaurav Agrawal, Zhiyue Xu
  • Publication number: 20130149447
    Abstract: A method of growing carbonaceous particles comprises depositing carbon from a carbon source, onto a particle nucleus, the particle nucleus being a carbon-containing material, an inorganic material, or a combination comprising at least one of the foregoing, and the carbon source comprising a saturated or unsaturated compound of C20 or less, the carbonaceous particles having a uniform particle size and particle size distribution. The method is useful for preparing polycrystalline diamond compacts (PDCs) by a high-pressure, high temperature (HPHT) process.
    Type: Application
    Filed: December 9, 2011
    Publication date: June 13, 2013
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Oleg A. Mazyar, Soma Chakraborty, Oleksandr Kuznetsov, Anthony A. DiGiovanni, Gaurav Agrawal, Michael H. Johnson