Patents by Inventor D. V. Satyanarayana Gupta

D. V. Satyanarayana Gupta 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: 7572757
    Abstract: The present invention relates to the use of chalcogen heterocyclic electron donating compounds as thermal decomposition reduction additives for gels used in well treatment fluids such as drilling fluids, fracturing fluids, and well completion and workover fluids.
    Type: Grant
    Filed: July 18, 2005
    Date of Patent: August 11, 2009
    Assignee: BJ Services Company
    Inventors: D. V. Satyanarayana Gupta, Paul S. Carman
  • Publication number: 20090178807
    Abstract: Non-spherical particulates are useful in the stimulation of subterranean formations. A proppant pack composed of the non-spherical particulates exhibits greater porosity than a corresponding proppant pack composed of spherical particulates. In addition, the non-spherical particulates exhibit higher conductivity at higher stresses than spherical shaped particulates. Non-spherical particulates which are hollow and non-porous may further be at least partially filled with a chemical treatment agent including water-soluble or oil-soluble chemical treatment agents.
    Type: Application
    Filed: January 14, 2008
    Publication date: July 16, 2009
    Inventors: Phillip B. Kaufman, D.V. Satyanarayana Gupta, Allan R. Rickards, Christopher J. Stephenson
  • Patent number: 7493955
    Abstract: A composite of a well treatment agent adsorbed onto a water-insoluble adsorbent is useful in the treatment of oil and gas wells and may be introduced, as a well treatment fluid, with a carrier fluid. The water-insoluble adsorbent may be activated carbon, silica particulate, precipitated silica, zeolite, diatomaceous earth, ground walnut shells, fuller's earth and organic synthetic high molecular weight water-insoluble adsorbents. Suitable as the well treatment agent are scale inhibitors, corrosion inhibitors, paraffin inhibitors, salt inhibitors, gas hydrate inhibitors, asphaltene inhibitors, oxygen scavengers, biocides, foaming agent, emulsion breakers and surfactants.
    Type: Grant
    Filed: December 8, 2005
    Date of Patent: February 24, 2009
    Assignee: BJ Services Company
    Inventors: D. V. Satyanarayana Gupta, Joseph Walter Kirk
  • Patent number: 7494711
    Abstract: Plastic beads, including polyamides and polystyrene beads crosslinked with divinylbenzene, having a curable resin coating are highly useful for sand control and/or hydraulic fracturing of subterranean. The curable resin coated plastic beads preferably have an apparent specific gravity less than about 1.5.
    Type: Grant
    Filed: March 8, 2006
    Date of Patent: February 24, 2009
    Assignee: BJ Services Company
    Inventors: Phillip B. Kaufman, Harold D. Brannon, D. V. Satyanarayana Gupta
  • Publication number: 20090044942
    Abstract: Spherical porous and non-porous cellulose particulates for use in sand control as well as stimulation procedures, may be prepared by first dissolving cellulosic materials (such as fibrous cellulose, wood pulp linters, cotton balls and/or paper), in the substantial absence of water or a nitrogen-containing base, in an ionic liquid. The solution is then combined with a cellulose-insoluble liquid to render the spherical particulates. The surface of the cellulosic particulates may be treated with a coating or penetrating layer.
    Type: Application
    Filed: August 13, 2008
    Publication date: February 19, 2009
    Inventor: D.V. Satyanarayana Gupta
  • Patent number: 7491682
    Abstract: A well treating composition of a composite containing a scale inhibitor adsorbed onto a water-insoluble adsorbent is useful in the control, formation and treatment of inorganic scales in a subterranean formation or wellbore. In addition, the well treating composition is useful in controlling the rate of release of scale inhibitor in the wellbore. The water-insoluble adsorbent may be activated carbon, silica particulate, precipitated silica, zeolite, diatomaceous earth, ground walnut shells, fuller's earth and organic synthetic high molecular weight water-insoluble adsorbents. The composite may be introduced into an oil or gas well with a carrier fluid.
    Type: Grant
    Filed: December 15, 2004
    Date of Patent: February 17, 2009
    Assignee: BJ Services Company
    Inventors: D. V. Satyanarayana Gupta, Joseph W. Kirk
  • Publication number: 20090008094
    Abstract: Methods and compositions useful for subterranean formation treatments, such as hydraulic fracturing treatments and sand control that include porous materials. Such porous materials may be selectively configured porous material particles manufactured and/or treated with selected glazing materials, coating materials and/or penetrating materials to have desired strength and/or apparent density to fit particular downhole conditions for well treating such as hydraulic fracturing treatments and sand control treatments. Porous materials may also be employed in selected combinations to optimize fracture or sand control performance, and/or may be employed as relatively lightweight materials in liquid carbon dioxide-based well treatment systems.
    Type: Application
    Filed: September 16, 2008
    Publication date: January 8, 2009
    Inventors: Christopher John Stephenson, Allan Ray Rickards, Harold Dean Brannon, D.V. Satyanarayana Gupta
  • Patent number: 7426961
    Abstract: Methods and compositions useful for subterranean formation treatments, such as hydraulic fracturing treatments and sand control that include porous materials. Such porous materials may be selectively configured porous material particles manufactured and/or treated with selected glazing materials, coating materials and/or penetrating materials to have desired strength and/or apparent density to fit particular downhole conditions for well treating such as hydraulic fracturing treatments and sand control treatments. Porous materials may also be employed in selected combinations to optimize fracture or sand control performance, and/or may be employed as relatively lightweight materials in liquid carbon dioxide-based well treatment systems.
    Type: Grant
    Filed: September 2, 2003
    Date of Patent: September 23, 2008
    Assignee: BJ Services Company
    Inventors: Christopher John Stephenson, Allan Ray Rickards, Harold Dean Brannon, D. V. Satyanarayana Gupta
  • Publication number: 20080190619
    Abstract: A low viscosity fluid for reducing fluid loss in a relatively low permeability formation has a viscosity of less that 10 CP and contains a low molecular weight viscosifying agent The aqueous medium may be fresh water, salt water, brine or slickwater. The invention has particular applicability when an ultra lightweight (ULW) proppant or sand control particulate is employed. The fluid may be used in reservoirs having a relative permeability less than 10 mD.
    Type: Application
    Filed: February 13, 2007
    Publication date: August 14, 2008
    Inventors: Harold Dean Brannon, D.V. Satyanarayana Gupta, Roger R. Myers, Brian Benedict Beall
  • Patent number: 7201227
    Abstract: Disclosed herein is a method of treating a subterranean formation utilizing a fluid having a splittable foamer, i.e., a fluid that creates a stable foam when it contacts the formation but that loses its ability to foam as it remains in contact with the formation for extended time. The present method has the advantage that the fluid can be recovered from the well unhindered by the difficulties involved with recovering a foamed fluid from a well. The present method does not require the use of breakers, though the splitting of the foam can be accelerated by introducing an organic or inorganic acid into the well, if so desired.
    Type: Grant
    Filed: December 20, 2004
    Date of Patent: April 10, 2007
    Assignee: BJ Services Company
    Inventors: D. V. Satyanarayana Gupta, Barry T. Hlidek
  • Publication number: 20060124302
    Abstract: A composite of a well treatment agent adsorbed onto a water-insoluble adsorbent is useful in the treatment of oil and gas wells and may be introduced, as a well treatment fluid, with a carrier fluid. The water-insoluble adsorbent may be activated carbon, silica particulate, precipitated silica, zeolite, diatomaceous earth, ground walnut shells, fuller's earth and organic synthetic high molecular weight water-insoluble adsorbents. Suitable as the well treatment agent are scale inhibitors, corrosion inhibitors, paraffin inhibitors, salt inhibitors, gas hydrate inhibitors, asphaltene inhibitors, oxygen scavengers, biocides, foaming agent, emulsion breakers and surfactants.
    Type: Application
    Filed: December 8, 2005
    Publication date: June 15, 2006
    Inventors: D.V. Satyanarayana Gupta, Joseph Kirk
  • Patent number: 7049436
    Abstract: Alcohol based hydraulic fracturing fluids useful for treating oil and gas wells are disclosed. The fluids are compatible with carbon dioxide, and comprise an alcohol, a polymer, a crosslinking agent, and a breaker. Hydroxypropyl guar with a molar substitution of about 1.2 to about 2.2 is identified as a presently preferred polymer.
    Type: Grant
    Filed: October 9, 2002
    Date of Patent: May 23, 2006
    Assignee: BJ Services Company
    Inventors: D. V. Satyanarayana Gupta, Greg Niechwiadowicz, Anita C Jerat
  • Patent number: 7007757
    Abstract: A formation treating fluid comprises one or more borate esters, a liquid carrier and, one or more cross linkable polymer wherein the formation treating fluid has an alkaline pH when the formation treating fluid is positioned in a formation. The formation treating fluid is useful in high temperature operations such as hydraulic fracturing.
    Type: Grant
    Filed: June 25, 2002
    Date of Patent: March 7, 2006
    Assignee: BJ Services Company Canada
    Inventors: D. V. Satyanarayana Gupta, Ron Pierce, Nicole Deanne Litt, Anita Colleen Jerat
  • Patent number: 6875728
    Abstract: A method of fracturing a formation with a fracturing fluid wherein the formation has particulate material that swells or migrates upon exposure to the fracturing fluid comprises preparing a fracturing fluid comprising (1) a thickening compound comprising a first surfactant selected from the group consisting of a cationic surfactant having only a single cationic group, an amphoteric surfactant and a mixture thereof; and, an anionic surfactant; and, (2) water, wherein no or essentially no inorganic salt is added to the fracturing fluid; and using the fracturing fluid to fracture the formation. A method for recycling a fracturing fluid is also provided.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: April 5, 2005
    Assignee: BJ Services Company Canada
    Inventors: D. V. Satyanarayana Gupta, Eric Hughson Tudor
  • Publication number: 20040200617
    Abstract: Methods and compositions useful for subterranean formation treatments, such as hydraulic fracturing treatments and sand control that include porous materials. Such porous materials may be selectively configured porous material particles manufactured and/or treated with selected glazing materials, coating materials and/or penetrating materials to have desired strength and/or apparent density to fit particular downhole conditions for well treating such as hydraulic fracturing treatments and sand control treatments. Porous materials may also be employed in selected combinations to optimize fracture or sand control performance, and/or may be employed as relatively lightweight materials in liquid carbon dioxide-based well treatment systems.
    Type: Application
    Filed: April 14, 2004
    Publication date: October 14, 2004
    Inventors: Christopher John Stephenson, Allan Ray Rickards, Harold Dean Brannon, D.V. Satyanarayana Gupta
  • Publication number: 20040138071
    Abstract: The invention relates to surfactant based viscoelastic fluids for enhancing the productivity of a hydrocarbon-bearing formations, such as oil wells. The viscoelastic fluids of the invention have particular applicability in acid fracturing of subterranean formations surrounding oil and gas wells. The viscoelastic fluid contains an inorganic acid and at least one C10 to C24 alkyl trialkyl quaternary ammonium aromatic salt such as quaternary ammonium salicylate or phthalate. An anionic surfactant may also be present in the viscoelastic fluid. The addition of the C10 to C24 alkyl trialkyl quaternary ammonium aromatic salt to the inorganic acid causes gellation of the acid.
    Type: Application
    Filed: January 15, 2003
    Publication date: July 15, 2004
    Inventors: D. V. Satyanarayana Gupta, Greg Niechwiadowicz, Kewei Zhang
  • Patent number: 6729409
    Abstract: A method for fracturing subterranean formations surrounding oil and gas wells using a fracturing fluid consisting of a foam constituted by a liquid phase and a gaseous phase. The liquid phase has a foam forming substance dissolved therein. The foam forming substance is preferably a surfactant such as a non-ionic hydrofluoroether surfactant. The liquid phase is preferably CO2 and the gaseous phase N2.
    Type: Grant
    Filed: October 5, 2001
    Date of Patent: May 4, 2004
    Inventors: D. V. Satyanarayana Gupta, Ronald G. Pierce, Cheryl L. Senger Elsbernd
  • Publication number: 20040072700
    Abstract: Alcohol based hydraulic fracturing fluids useful for treating oil and gas wells are disclosed. The fluids are compatible with carbon dioxide, and comprise an alcohol, a polymer, a crosslinking agent, and a breaker. Hydroxypropyl guar with a molar substitution of about 1.2 to about 2.2 is identified as a presently preferred polymer.
    Type: Application
    Filed: October 9, 2002
    Publication date: April 15, 2004
    Inventors: D.V. Satyanarayana Gupta, Greg Niechwiadowicz, Anita C. Jerat
  • Publication number: 20040040708
    Abstract: Methods and compositions useful for subterranean formation treatments, such as hydraulic fracturing treatments and sand control that include porous materials. Such porous materials may be selectively configured porous material particles manufactured and/or treated with selected glazing materials, coating materials and/or penetrating materials to have desired strength and/or apparent density to fit particular downhole conditions for well treating such as hydraulic fracturing treatments and sand control treatments. Porous materials may also be employed in selected combinations to optimize fracture or sand control performance, and/or may be employed as relatively lightweight materials in liquid carbon dioxide-based well treatment systems.
    Type: Application
    Filed: September 2, 2003
    Publication date: March 4, 2004
    Inventors: Christopher John Stephenson, Allan Ray Rickards, Harold Dean Brannon, D.V. Satyanarayana Gupta
  • Patent number: 6509300
    Abstract: A fracturing fluid is disclosed consisting of an emulsion having a continuous phase of a liquified gas, a discontinuous phase of a hydrocarbon, and a surfactant soluble in the two phases. The surfactant is preferably a hydrofluoroether.
    Type: Grant
    Filed: December 23, 1999
    Date of Patent: January 21, 2003
    Assignee: B.J Services Company
    Inventor: D. V. Satyanarayana Gupta