Patents by Inventor Soma Chakraborty

Soma Chakraborty 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: 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: 20140027116
    Abstract: A process for stabilizing particles includes disposing reactive nanoparticles in a borehole; contacting the reactive nanoparticles with a resin; introducing a curing agent; and curing the resin and reactive nanoparticles with the curing agent to form a nanocomposite, wherein, during curing, the nanocomposite is bonded to the particles to stabilize the particles. A process for consolidating particles includes coating the particles with a resin; introducing reactive nanoparticles; curing the resin and reactive nanoparticles with a curing agent to form a nanocomposite which is bonded to the particles; and controlling a rate of the curing by an amount of the curing agent which is present with the resin, wherein the nanocomposite bonded to the particles is thermally stable up to at least 600° F. (315° C.). A system comprises a resin; reactive nanoparticles; a curing agent to form a nanocomposite; and particles disposed in a downhole location to which the nanocomposite binds.
    Type: Application
    Filed: July 30, 2012
    Publication date: January 30, 2014
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Radhika Suresh, Michael Johnson, Soma Chakraborty, Donald Horner
  • Publication number: 20140018475
    Abstract: A process for preparing a nanocomposite includes combining a resin and silsesquioxane; introducing a curing agent to the resin and silsesquioxane to form a composition; and forming a reaction product of the composition to prepare the nanocomposite, wherein a total amount of the silsesquioxane and curing agent in the composition is from 1 wt % to 70 wt %, based on a weight of the composition. Additionally, a process for preparing an article includes combining an epoxy resin and silsesquioxane; introducing a curing agent to the epoxy resin and silsesquioxane to form a composition; and reacting the epoxy resin, silsesquioxane, and curing agent to form the nanocomposite, wherein a molar ratio of a number of moles of an epoxy functional group of the epoxy resin to the sum of the number of moles of the silsesquioxane and curing agent is from 1:1 to 100:1. An article includes the reaction product of the resin, silsesquioxane, and curing agent.
    Type: Application
    Filed: July 16, 2012
    Publication date: January 16, 2014
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Joshua C. Falkner, Soma Chakraborty, Radhika Suresh
  • Publication number: 20140005304
    Abstract: A nanocomposite comprises: a polymer; and a nanofiller disposed in the polymer, the nanofiller comprising a first nanoparticle bonded to a second nanoparticle. A process of making a nanocomposite comprises: combining a silsesquioxane and a nanoparticle; bonding the nanoparticle to the silsesquioxane to make a nanofiller; and dispersing the nanofiller in a polymer to make the nanocomposite.
    Type: Application
    Filed: July 2, 2012
    Publication date: January 2, 2014
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Radhika Suresh, Soma Chakraborty
  • Publication number: 20140000898
    Abstract: A method of transferring heat to or from a downhole element comprising contacting a downhole fluid comprising a fluid medium, and a nanoparticle, the nanoparticle being uniformly dispersed in the downhole fluid, to a downhole element inserted in a downhole environment. A method of cooling a downhole element, and a method of drilling a borehole are also disclosed.
    Type: Application
    Filed: September 5, 2013
    Publication date: January 2, 2014
    Applicant: Baker Hughes Incorporated
    Inventors: Soma Chakraborty, Michael H. Johnson, Oleg A. Mazyar
  • Publication number: 20130206273
    Abstract: A downhole composite component is disclosed. The downhole composite component includes a tubular member, the tubular member comprising a fiber reinforced polymer matrix composite. The fiber reinforced polymer matrix composite includes a polymer matrix, the polymer matrix having an unfilled matrix compressive modulus of elasticity. The polymer matrix also includes a nanoparticle filler comprising a plurality of nanoparticles dispersed within the polymer matrix, the polymer matrix and dispersed nanoparticle filler having a filled matrix compressive modulus of elasticity, the filled matrix compressive modulus of elasticity being greater than the unfilled matrix compressive modulus of elasticity.
    Type: Application
    Filed: February 10, 2012
    Publication date: August 15, 2013
    Inventors: Randall V. Guest, Soma Chakraborty, Joshua C. Falkner
  • 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: 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: 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
  • Publication number: 20130112911
    Abstract: A nanoparticle composition comprises a ferromagnetic or superparamagnetic metal nanoparticle, and a functionalized carbonaceous coating on a surface of the ferromagnetic or superparamagnetic metal nanoparticle. A magnetorheological fluid comprises the nanoparticle composition.
    Type: Application
    Filed: November 3, 2011
    Publication date: May 9, 2013
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Oleg A. Mazyar, Soma Chakraborty, Terry R. Bussear, Michael H. Johnson
  • Publication number: 20130115462
    Abstract: A nanoparticle composition includes a metal nanoparticle, and a continuous dielectric coating on a surface of the metal nanoparticle, the nanoparticle composition being a dielectric material. A nanoparticle is in addition the reaction product of an organometallic compound. An electrorheological fluid comprises the nanoparticle composition and a dielectric fluid, and a method of making an electrorheological fluid is also disclosed.
    Type: Application
    Filed: November 3, 2011
    Publication date: May 9, 2013
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Oleg A. Mazyar, Soma Chakraborty, Terry R. Bussear, Michael H. Johnson
  • Publication number: 20130108800
    Abstract: A composite includes a substrate, a binder layer disposed on a surface of the substrate; and a nanofiller layer comprising nanographene and disposed on a surface of the binder layer opposite the substrate. In addition, a nano-coating layer for coating a substrate includes multiple alternating layers of the binder layer and the nanofiller layer. Articles coated with the nano-coating layer prepared from alternating layers of nanofiller layer and binder layer have improved barrier properties, and may be used in down-hole applications.
    Type: Application
    Filed: December 20, 2012
    Publication date: May 2, 2013
    Applicant: Baker Hughes Incorporated
    Inventors: Soma Chakraborty, Jiang Zhu, Gaurav Agrawal
  • Patent number: 8425651
    Abstract: A powder metal composite is disclosed. The powder metal composite includes a substantially-continuous, cellular nanomatrix comprising a nanomatrix material. The composite also includes a plurality of dispersed first particles each comprising a first particle core material that comprises Mg, Al, Zn or Mn, or a combination thereof, dispersed in the nanomatrix; a plurality of dispersed second particles intermixed with the dispersed first particles, each comprising a second particle core material that comprises a carbon nanoparticle; and a solid-state bond layer extending throughout the nanomatrix between the dispersed first and second particles. The nanomatrix powder metal composites are uniquely lightweight, high-strength materials that also provide uniquely selectable and controllable corrosion properties, including very rapid corrosion rates, useful for making a wide variety of degradable or disposable articles, including various downhole tools and components.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: April 23, 2013
    Assignee: Baker Hughes Incorporated
    Inventors: Zhiyue Xu, Soma Chakraborty, Gaurav Agrawal
  • Publication number: 20130069022
    Abstract: An electrorheological fluid comprises a nanoparticle composition comprising a nanoparticle, uncoated or coated with a polymeric or metallic coating and covalently bonded to or coated on a surface of a polymeric or inorganic particle; and a dielectric fluid having a dielectric constant lower than that of the nanoparticle composition. A nanoparticle composition also comprises a carbon-based nanoparticle, covalently bonded to or coated on a surface of a conjugated polymer particle or inorganic particle, wherein the nanoparticle composition is a dielectric material.
    Type: Application
    Filed: September 19, 2011
    Publication date: March 21, 2013
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Terry R. Bussear, Soma Chakraborty, Michael H. Johnson
  • Publication number: 20130068541
    Abstract: Methods of fabricating polycrystalline diamond include functionalizing surfaces of carbon-free nanoparticles with one or more functional groups, combining the functionalized nanoparticles with diamond nanoparticles and diamond grit to form a particle mixture, and subjecting the particle mixture to high pressure and high temperature (HPHT) conditions to form inter-granular bonds between the diamond nanoparticles and the diamond grit. Cutting elements for use in an earth-boring tool includes a polycrystalline diamond material formed by such processes. Earth-boring tools include such cutting elements.
    Type: Application
    Filed: September 14, 2012
    Publication date: March 21, 2013
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Anthony A. DiGiovanni, Soma Chakraborty
  • Publication number: 20130062067
    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: Application
    Filed: September 9, 2011
    Publication date: March 14, 2013
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Randall V. Guest, Soma Chakraborty, Gaurav Agrawal, Don C. Cox, XiaoWei Wang
  • Publication number: 20130043028
    Abstract: A method of transferring heat to or from a downhole element comprising contacting a downhole fluid comprising a fluid medium, and a nanoparticle, the nanoparticle being uniformly dispersed in the downhole fluid, to a downhole element inserted in a downhole environment. A method of cooling a downhole element, and a method of drilling a borehole are also disclosed.
    Type: Application
    Filed: August 19, 2011
    Publication date: February 21, 2013
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Soma Chakraborty, Michael H. Johnson, Oleg A. Mazyar
  • Publication number: 20130045897
    Abstract: An amphiphilic nanoparticle comprises a nanoparticle having a hydrophilic region comprising a hydrophilic functional group bonded to a first portion of a surface of the nanoparticle, and a hydrophobic region of a surface of the nanoparticle. A downhole fluid comprises the amphiphilic nanoparticle, and a method of controlling an oil spill using the downhole fluid are also disclosed.
    Type: Application
    Filed: August 19, 2011
    Publication date: February 21, 2013
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Soma Chakraborty, Gaurav Agrawal
  • Publication number: 20130000209
    Abstract: Methods of treating a plurality of particles comprise functionalizing a plurality of microscale diamond particles by covalently bonding one or more molecular groups selected from the group consisting of —OH functional groups, —COOH functional groups, —R—COOH functional groups, wherein R comprises alkyls, —Ph—COOH functional groups, wherein Ph comprises 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: Application
    Filed: June 30, 2011
    Publication date: January 3, 2013
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Soma Chakraborty, Gaurav Agrawal
  • Publication number: 20120324799
    Abstract: Coated particles comprise a core particle comprising a superhard material and having an average diameter of between 1 ?m and 500 ?m. A coating material is adhered to and covers at least a portion of an outer surface of the core particle, the coating material comprising an amine terminated group. A plurality of nanoparticles selected from the group consisting of carbon nanotubes, nanographite, nanographene, non-diamond carbon allotropes, surface modified nanodiamond, nanoscale particles of BeO, and nanoscale particles comprising a Group VIIIA element is adhered to the coating material.
    Type: Application
    Filed: June 22, 2011
    Publication date: December 27, 2012
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Soma Chakraborty, Oleksandr Kuznetsov, Gaurav Agrawal