Patents by Inventor Rajesh K. Saini

Rajesh K. Saini 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).

  • Publication number: 20130081813
    Abstract: Method including the steps of providing a treatment fluid that comprises a base fluid and polymeric particulates wherein the polymeric particulates comprise a degradable polymer and a plasticizer and exhibit a Tg above about ?15° C.; introducing the treatment fluid into a subterranean formation having a temperature above about 65° C. such that the particulates transform from rigid to malleable form and are able to provide fluid loss, seal the rock surfaces for fluid diversion, or plug an area along the annulus of a well bore; and, degrading the malleable particulates over time in the subterranean formation.
    Type: Application
    Filed: October 4, 2011
    Publication date: April 4, 2013
    Inventors: Feng Liang, Bradley L. Todd, Thomas D. Welton, Rajesh K. Saini
  • Publication number: 20130081821
    Abstract: The present invention relates to the use of composite material in downhole applications, and more particularly, relates to methods of making composite material comprising reinforced amorphous polylactic acid and methods of use related thereto. Some methods comprise providing an amorphous polylactic acid and a solid reinforcing material; forming a composite material by melting the amorphous polylactic acid and mixing it with the solid reinforcing material; and, using the composite material in a downhole application.
    Type: Application
    Filed: October 4, 2011
    Publication date: April 4, 2013
    Inventors: Feng Liang, Rajesh K. Saini, Bradley L. Todd
  • Patent number: 8309498
    Abstract: Of the many methods and compositions provided by this invention, one method a method of treating a subterranean formation, comprising: providing a treatment fluid comprising: an aqueous base fluid and a reaction product of a gelling agent comprising a copolymer or salt thereof comprising N-[tris(hydroxymethyl)methyl]acrylamide, 2-acrylamido-2-methylpropanesulfonic acid or a salt thereof, and acrylamide; and a crosslinking agent; and introducing the treatment fluid into a subterranean formation.
    Type: Grant
    Filed: September 24, 2009
    Date of Patent: November 13, 2012
    Assignee: Halliburtn Energy Services, Inc.
    Inventors: Gary P. Funkhouser, Rajesh K. Saini, Arnab Mukherjee
  • Publication number: 20120270758
    Abstract: A subterranean treatment fluid comprising a degradable gemini surfactant composition described by the following formula: A and A? are spacers that may be a hydrophobic group or a hydrophilic group. B is an ion and may contain a quaternary nitrogen, a sulfonate, or a phosphate. A, A?, B, B?, C, C, E and E? may be an alkyl, an aryl, a sugar, an ester, an ether, and any combination thereof. D and D? may be an aryl, a sugar, an ester, an ether, and any combination thereof. In some cases, A?, D?, and E? may be optional.
    Type: Application
    Filed: June 26, 2012
    Publication date: October 25, 2012
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Rajesh K. Saini, Narongsak Tonmukayakul, Thomas D. Welton, Jason E. Bryant, Sherry G. Gaskins
  • Publication number: 20120208727
    Abstract: Subterranean treatment fluids comprising: an aqueous base fluid and a reaction product of a gelling agent comprising a copolymer or salt thereof comprising N-[tris(hydroxymethyl)methyl]acrylamide, 2-acrylamido-2-methylpropanesulfonic acid or a salt thereof, acrylamide; and a crosslinking agent. Such treatment fluids are particularly well-suited for high temperature applications. In particular, they are suited for subterranean temperatures up to about 400° F.
    Type: Application
    Filed: April 26, 2012
    Publication date: August 16, 2012
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Gary P. Funkhouser, Rajesh K. Saini, Arnab Mukherjee
  • Publication number: 20120189771
    Abstract: Methods of creating particulates coated with acid-releasing degradable material comprising the steps of: combining an acid-releasing degradable material with a solvent or a plasticizer to create a coating solution; providing a first flowing stream comprising the coating solution; providing a second flowing stream comprising particulates; and, combining the first and second flowing streams to create a third flowing stream comprising particulates coated with the coating solution. Wherein the acid-releasing degradable material comprises at least one acid-releasing degradable material selected from the group consisting of: poly(orthoester); a lactide, a poly(lactide); a glycolide; a poly(glycolide); a poly(?-caprolactone); a poly(hydroxybutyrate); a substantially water insoluble anhydride; a poly(anhydride); a poly(amino acid); a copolymer of two or more of the above-listed compounds; and any combination thereof.
    Type: Application
    Filed: March 30, 2012
    Publication date: July 26, 2012
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Rajesh K. Saini, Bradley L. Todd
  • Publication number: 20120181033
    Abstract: Methods of using nanohybrid-containing fluids in a well are provided. The methods include the steps of: (a) forming or providing a well fluid comprising a nanohybrid; and (b) introducing the well fluid into a well. The methods can be used in various applications, such as in drilling, completion, or intervention operations.
    Type: Application
    Filed: February 2, 2012
    Publication date: July 19, 2012
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: RAJESH K. SAINI, LEWIS R. NORMAN
  • Publication number: 20120181029
    Abstract: Methods of using nanohybrid-stabilized emulsions in a well are provided. The methods include the steps of: (a) forming an emulsion comprising: (i) a nanohybrid; (ii) water or an aqueous solution; and (iii) a water-immiscible liquid; (b) introducing a well fluid comprising the emulsion into a well; and (c) after the step of introducing, modifying the nanohybrid to break the emulsion in the well. The methods can be used in various applications, such as in drilling, completion, or intervention operations.
    Type: Application
    Filed: January 13, 2011
    Publication date: July 19, 2012
    Inventors: Rajesh K. Saini, Lewis R. Norman
  • Publication number: 20120181019
    Abstract: Methods of using nanohybrid-containing fluids in a well are provided. The methods include the steps of: (a) forming or providing a well fluid comprising a nanohybrid; and (b) introducing the well fluid into a well. The methods can be used in various applications, such as in drilling, completion, or intervention operations.
    Type: Application
    Filed: February 2, 2012
    Publication date: July 19, 2012
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: RAJESH K. SAINI, LEWIS R. NORMAN
  • Publication number: 20120167803
    Abstract: Methods of making particulates for use in a subterranean application comprising: providing particulates of a settable composition comprising a cementitious material, a filler material, and an activator of the cementitious material; and pre-curing the particulates until the particulates reach a crush strength of about 50 psi or greater; and curing the pre-cured particulates at a temperature in the range of about 230° F. to about 600° F., so that at least a portion of the particulates comprise a newly formed crystalline phase.
    Type: Application
    Filed: March 12, 2012
    Publication date: July 5, 2012
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Hongyu Luo, Lewis R. Norman, Ronald J. Powell, Rajesh K. Saini, Ashok K. Santra, Craig W. Roddy
  • Publication number: 20120172262
    Abstract: The present invention relates to fluids useful for subterranean operations, and more particularly, to fluorosurfactants useful for the reduction of water blocks, gas blocks, and/or gas condensates and their associated treatment fluids and methods. Provided is a method of treating a subterranean formation. The Method may comprise contacting the subterranean formation with a fluorosurfactant. The fluorosurfactant may comprise an amine group, wherein the amine group comprises at least one substituent selected from the group consisting of a fluoroalkyl group, a fluoroalkenyl group, and combinations thereof, wherein the at least one substituent comprises about 3 carbons to about 22 carbons. Also provided are polymeric surfactants and treatment fluids that comprise fluorosurfactants.
    Type: Application
    Filed: March 9, 2012
    Publication date: July 5, 2012
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Lewis R. Norman, Rajesh K. Saini
  • Publication number: 20120141308
    Abstract: Polymeric and polymeric composite parts for pumps and a method of manufacturing same are disclosed. More specifically, a valve insert comprising a polymeric seal sized to fit on an outside diameter of a valve closure member for a plunger pump; a pressure packing element ring for a plunger on a plunger pump; and a pressure packing element ring for a push rod on plunger of a plunger pump, each of said articles being formed from a naphthalene-1,5-diisocyanate (NDI) based polyurethane component and an extender.
    Type: Application
    Filed: December 5, 2011
    Publication date: June 7, 2012
    Inventors: Rajesh K. Saini, Fen Liang, David M. Stribling
  • Patent number: 8183186
    Abstract: Methods of making particulates for use in a subterranean application comprising: providing particulates of a settable composition comprising a cementitious material, a filler material, and an activator of the cementitious material; and pre-curing the particulates until the particulates reach a crush strength of about 50 psi or greater; and curing the pre-cured particulates at a temperature in the range of about 230° F. to about 600° F., so that at least a portion of the particulates comprise a newly formed crystalline phase.
    Type: Grant
    Filed: November 5, 2008
    Date of Patent: May 22, 2012
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Hongyu Luo, Lewis R. Norman, Ronald J. Powell, Rajesh K. Saini, Ashok K. Santra, Craig W. Roddy
  • Publication number: 20120024526
    Abstract: A method for diverting fluids across a perforation tunnel in high-rate water pack operations may include providing a wellbore extending into a subterranean formation, wherein a perforation tunnel provides a fluid connection between the wellbore and the subterranean formation; providing a diverting particulate that comprises a degradable plasticized polymer coating on a particulate; placing the diverting particulate into the perforation tunnel, wherein the step of placing the diverting particulate forms a particulate pack within the subterranean formation and the perforation tunnel; allowing the degradable plasticized polymer coating to deform and fill the interstitial spaces within the particulate pack in the perforation tunnel such that the fluid conductivity between the wellbore and the subterranean formation is substantially blocked; and allowing the plasticized polymer coating to degrade over time thereby substantially restoring the fluid conductivity between the wellbore and the subterranean formation.
    Type: Application
    Filed: October 4, 2011
    Publication date: February 2, 2012
    Inventors: Feng Liang, Bradley L. Todd, Rajesh K. Saini
  • Patent number: 8101556
    Abstract: The present invention provides treatment fluids useful for subterranean operations, and more particularly, in at least one aspect, a treatment fluid that comprises a carrier fluid and a cationic surfactant comprising a cationic head group, a polar group attached to the head group, and a hydrophobic group that is either a saturated or unsaturated, branched or straight chain alkyl, and comprises about 6 carbons to about 22 carbons. The treatment fluids of the present invention are at least suitable for use as a remedial treatment for the reduction of existing water blocks, oil blocks, and/or gas condensates.
    Type: Grant
    Filed: May 8, 2009
    Date of Patent: January 24, 2012
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Lewis R. Norman, Bobby E. Hall, Rajesh K. Saini, Anindya Ghosh
  • Publication number: 20120004148
    Abstract: Treatment of a subterranean formation can be conducted with viscosified treatment fluids that comprise a multifunctional boronic acid crosslinking agent. Methods for treating a subterranean formation can comprise providing a treatment fluid that comprises an aqueous base fluid, a gelling agent, and a multifunctional boronic acid crosslinking agent that comprises a copolymer comprising at least one boronic acid monomer unit and at least one water-soluble monomer unit; and introducing the treatment fluid into a subterranean formation.
    Type: Application
    Filed: September 12, 2011
    Publication date: January 5, 2012
    Applicant: Halliburton Energy Services, Inc.
    Inventors: James W. Ogle, Jeremy Holtsclaw, Rajesh K. Saini
  • Publication number: 20120000659
    Abstract: A method of treating a subterranean formation comprises providing a treatment fluid comprising: an aqueous fluid; a gelling agent, and a multifunctional boronic crosslinker comprising two or more boronic functional groups; and introducing the viscosified fluid into a subterranean formation.
    Type: Application
    Filed: June 30, 2010
    Publication date: January 5, 2012
    Inventors: David M. Loveless, Rajesh K. Saini, Jimmie D. Weaver
  • Publication number: 20110269904
    Abstract: Of the many embodiments presented herein, one is a subterranean treatment fluid comprising: an aqueous fluid; and a water-soluble degradable synthetic vinyl polymer having a labile link in its backbone. Also provided in one instance is a water-soluble degradable synthetic vinyl polymer with labile group in its backbone made by a redox polymerization, the redox polymerization reaction comprising these reactants: a macroinitiator that comprises a labile link, an oxidizing metal ion, and a vinyl monomer.
    Type: Application
    Filed: April 30, 2010
    Publication date: November 3, 2011
    Inventors: Alexander Bismarck, Emilia M. Kot, Rajesh K. Saini
  • Publication number: 20110269651
    Abstract: Of the many embodiments presented herein, one is a subterranean treatment fluid comprising: an aqueous fluid; and a water-soluble degradable synthetic vinyl polymer having a labile link in its backbone. Also provided in one instance is a water-soluble degradable synthetic vinyl polymer with labile group in its backbone made by a redox polymerization, the redox polymerization reaction comprising these reactants: a macroinitiator that comprises a labile link, an oxidizing metal ion, and a vinyl monomer.
    Type: Application
    Filed: April 30, 2010
    Publication date: November 3, 2011
    Inventors: Alexander Bismarck, Emilia M. Kot, Rajesh K. Saini
  • Publication number: 20110214860
    Abstract: The present invention relates to low environmental impact treatment fluids comprising a compliant crosslinking agent, and methods of use employing such treatment fluids to treat subterranean formations. The methods include providing a low environmental impact treatment fluid including an aqueous base fluid, a viscosifying agent, and a compliant crosslinking agent that comprises an iron ion and a non-iron crosslinking metal ion; and placing the treatment fluid in a subterranean formation. In some embodiments, the viscosifying agent may be a compliant viscosifying agent.
    Type: Application
    Filed: March 5, 2010
    Publication date: September 8, 2011
    Inventors: Narongsak Tonmukayakul, Rajesh K. Saini, David M. Loveless, Gary P. Funkhouser, Feng Liang, Rocky M. Fitzgerald, Jeremy Holtsclaw, Phillip C. Harris, Lewis R. Norman