Patents by Inventor Rajender Salla

Rajender Salla 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: 11945993
    Abstract: A method may include: introducing a silane based aqueous soluble resin into a wellbore, wherein the silane based aqueous soluble resin comprises a glycidyl alkoxy silane containing resin and an amino alkoxy silane hardener. The silane based aqueous soluble resin may include 3-glycidoxypropyl trimethoxy silane and n-(3-(trimethoxysilyl)propyl)ethylenediamine.
    Type: Grant
    Filed: July 30, 2021
    Date of Patent: April 2, 2024
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Abhimanyu Pramod Deshpande, Rajender Salla, Shoy George Chittattukara, Sandip Prabhakar Patil, Rahul Chandrakant Patil
  • Patent number: 11697758
    Abstract: A method of enhanced oil recovery may comprise placing into a subterranean formation a production enhancement fluid comprising a short chain hydrocarbon phase and a silane based wettability modifier, wherein the short chain hydrocarbon phase comprises hydrocarbons having 5 or less carbon atoms; allowing the production enhancement fluid to remain in the subterranean formation for a shut-in period; and producing hydrocarbons from the subterranean formation.
    Type: Grant
    Filed: October 27, 2021
    Date of Patent: July 11, 2023
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Mallikarjuana Shroff Rama, Rajender Salla, Ronald Glen Dusterhoft
  • Publication number: 20230036729
    Abstract: A method may include: introducing a silane based aqueous soluble resin into a wellbore, wherein the silane based aqueous soluble resin comprises a glycidyl alkoxy silane containing resin and an amino alkoxy silane hardener. The silane based aqueous soluble resin may include 3-glycidoxypropyl trimethoxy silane and n-(3-(trimethoxysilyl)propyl)ethylenediamine.
    Type: Application
    Filed: July 30, 2021
    Publication date: February 2, 2023
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Abhimanyu Pramod Deshpande, Rajender Salla, Shoy George Chittattukara, Sandip Prabhakar Patil, Rahul Chandrakant Patil
  • Patent number: 11466194
    Abstract: Certain foamed gel treatment fluids and methods of using the treatment fluids in wellbores penetrating subterranean formations are provided. In one embodiment, the treatment fluids comprise: an aqueous base fluid, a gas, a plurality of particulates, and a plurality of swellable particles each comprising a material having a first monomer, a second monomer, and a third monomer comprising a foamable surfactant. In one embodiment, the methods comprise: preparing a treatment fluid comprising an aqueous base fluid and a swellable particle that comprises a material having a first monomer, a second monomer, and a third monomer comprising a foamable surfactant; introducing the treatment fluid into a wellbore penetrating at least a portion of a subterranean formation; and blending the treatment fluid while in the wellbore to form a foamed gel.
    Type: Grant
    Filed: February 8, 2021
    Date of Patent: October 11, 2022
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Sairam Eluru, Rajender Salla
  • Publication number: 20220049151
    Abstract: A method of enhanced oil recovery may comprise placing into a subterranean formation a production enhancement fluid comprising a short chain hydrocarbon phase and a silane based wettability modifier, wherein the short chain hydrocarbon phase comprises hydrocarbons having 5 or less carbon atoms; allowing the production enhancement fluid to remain in the subterranean formation for a shut-in period; and producing hydrocarbons from the subterranean formation.
    Type: Application
    Filed: October 27, 2021
    Publication date: February 17, 2022
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Mallikarjuana Shroff Rama, Rajender Salla, Ronald Glen Dusterhoft
  • Patent number: 11186762
    Abstract: A method of enhanced oil recovery may comprise placing into a subterranean formation a production enhancement fluid comprising a short chain hydrocarbon phase and a silane based wettability modifier, wherein the short chain hydrocarbon phase comprises hydrocarbons having 5 or less carbon atoms; allowing the production enhancement fluid to remain in the subterranean formation for a shut-in period; and producing hydrocarbons from the subterranean formation.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: November 30, 2021
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Mallikarjuana Shroff Rama, Rajender Salla, Ronald Glen Dusterhoft
  • Publication number: 20210292638
    Abstract: A method of treating in a subterranean formation including combining a demulsifier; proppant; an emulsifier; an oil base fluid; and aqueous base fluid to form an oil-external emulsified fluid; and introducing the oil-external emulsified fluid into the subterranean formation. A method of forming a wellbore fluid including combining proppant; a demulsifier; an aqueous base fluid, an oil base fluid, and an emulsifier to form a pre-emulsified fluid; and mixing the pre-emulsified fluid to form an oil-external emulsified fluid.
    Type: Application
    Filed: December 31, 2016
    Publication date: September 23, 2021
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Prashant D. Chopade, Rajender Salla, Eli Allen Schnoor, Monica Rajendra Dandawate, Walter T. Stephens
  • Patent number: 11124698
    Abstract: Methods and compositions for stimulating oil or gas production from a well with a single treatment fluid for use in a combined acidizing and hydraulic fracturing treatment are provided. An embodiment is a method comprising: coating a plurality of proppant particulates with oil to form oil-coated proppant particulates; adding the oil-coated proppant particulates to a solution comprising water, an acid source, and an emulsifier, wherein the ratio of the oil coating the proppant particulates to the water in the solution is less than 20:80 by volume; and mixing the solution and the oil-coated proppant particulates to form a treatment fluid comprising a water-in-oil emulsion and the oil-coated proppant particulates.
    Type: Grant
    Filed: November 7, 2016
    Date of Patent: September 21, 2021
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Prashant D. Chopade, Rajender Salla, Monica Rajendra Dandawate, Enrique Antonio Reyes, Walter T. Stephens
  • Patent number: 11060010
    Abstract: A method of treating in a subterranean formation including combining a dimer acid; proppant; an emulsifier; an oil base fluid; and aqueous base fluid to form an oil-external emulsified fluid; and introducing the oil-external emulsified fluid into the subterranean formation. A method of forming a wellbore fluid including combining proppant; a dimer acid; an aqueous base fluid, an oil base fluid, and an emulsifier to form a pre-emulsified fluid; and mixing the pre-emulsified fluid to form an oil-external emulsified fluid.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: July 13, 2021
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Prashant Chopade, Rajender Salla, Monica Rajendra Dandawate
  • Publication number: 20210163811
    Abstract: Certain foamed gel treatment fluids and methods of using the treatment fluids in wellbores penetrating subterranean formations are provided. In one embodiment, the treatment fluids comprise: an aqueous base fluid, a gas, a plurality of particulates, and a plurality of swellable particles each comprising a material having a first monomer, a second monomer, and a third monomer comprising a foamable surfactant. In one embodiment, the methods comprise: preparing a treatment fluid comprising an aqueous base fluid and a swellable particle that comprises a material having a first monomer, a second monomer, and a third monomer comprising a foamable surfactant; introducing the treatment fluid into a wellbore penetrating at least a portion of a subterranean formation; and blending the treatment fluid while in the wellbore to form a foamed gel.
    Type: Application
    Filed: February 8, 2021
    Publication date: June 3, 2021
    Inventors: Sairam Eluru, Rajender Salla
  • Patent number: 10961429
    Abstract: Certain foamed gel treatment fluids and methods of using the treatment fluids in wellbores penetrating subterranean formations are provided. In one embodiment, the treatment fluids comprise: an aqueous base fluid, a gas, a plurality of particulates, and a plurality of swellable particles each comprising a material having a first monomer, a second monomer, and a third monomer comprising a foamable surfactant. In one embodiment, the methods comprise: preparing a treatment fluid comprising an aqueous base fluid and a swellable particle that comprises a material having a first monomer, a second monomer, and a third monomer comprising a foamable surfactant; blending the treatment fluid with a gas to form a foamed gel; and introducing the foamed gel into a wellbore penetrating at least a portion of a subterranean formation.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: March 30, 2021
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Sairam Eluru, Rajender Salla
  • Patent number: 10920130
    Abstract: Methods for producing a coating on a fracture surface within a subterranean formation are provided. A pad fluid is injected or introduced into a wellbore to form a primary fracture in the subterranean formation and a coating fluid is injected or introduced into the primary fracture to form secondary fractures in the subterranean formation. The coating fluid is flowed into the secondary fractures to expose nucleation surfaces on the secondary fractures to the coating fluid and to produce a resin coating on the nucleation surfaces. Conductive flow paths are formed on and/or within the resin coating. Hydrocarbons can be retrieved from the subterranean formation via the conductive flow paths within the secondary fractures. A viscosity of the pad fluid is greater than a viscosity of the coating fluid and the coating fluid contains or includes a resin, a curing agent, a surfactant, and an organic solvent.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: February 16, 2021
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Philip D. Nguyen, Loan K. Vo, Rajender Salla
  • Patent number: 10889753
    Abstract: Treatment fluids comprising an aqueous base fluid and a gelling agent of selected from the group consisting of hydroxypropyl starch phosphate, a hydroxypropyl starch phosphate derivative, and any combination thereof. The treatment fluids may be used to perform subterranean formation operations, such as fracturing operations and proppant particulate placement operations. The treatment fluids are self-breakable and provide viscosity for proppant particulate suspension without the use of breakers or crosslinkers.
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: January 12, 2021
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Sairam Eluru, Rajender Salla, Sunil Narasingrao Garaje, Vijaya Kumar Patnana
  • Patent number: 10876031
    Abstract: Various embodiments disclosed relate to silane-based tackifiers for treatment of subterranean formations. In various embodiments, the present invention provides a method of treating a subterranean formation. The method includes placing in the subterranean formation a tackifier having the structure: or a salt thereof, wherein the variables are as defined herein.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: December 29, 2020
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Monica Rajendra Dandawate, Shoy George Chittattukara, Rajender Salla, Philip D. Nguyen
  • Patent number: 10876044
    Abstract: A method of fracturing a subterranean formation wherein a silicate component and a silica precipitation agent are each mixed with the fracturing fluid. The fracturing fluid is introduced to a subterranean formation such that the fracturing fluid is allowed to precipitate silica and form micro-proppant particulates in situ in a microfracture. The silicate component can be selected from potassium silicate, sodium silicate and combinations thereof.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: December 29, 2020
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Rajender Salla, Sairam Eluru, Sumukh Deshprabhu, Philip D. Nguyen
  • Patent number: 10767102
    Abstract: Methods and compositions for gravel packing a wellbore penetrating a subterranean formation are described. The methods include providing a gravel packing fluid and contacting the subterranean formation with the gravel packing fluid so as to place a gravel pack in or near a portion of the subterranean formation. The gravel packing fluid includes a particulate agent and hydroxypropyl starch phosphate.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: September 8, 2020
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Sairam Eluru, Sunil Narasingrao Garaje, Rajender Salla
  • Publication number: 20200255722
    Abstract: A well treatment method includes placing a first stream comprising a base fluid, a first micro-proppant, and a second micro-proppant into a zone in a subterranean formation comprising microfractures, wherein the first micro-proppant comprises at least one functional group selected from amino groups, mercapto groups, carboxylates, vinyls, and combinations thereof, wherein the second micro-proppant comprises at least one functional group selected from acrylates, epoxies, isocyanates, oxazolines, vinyls, and combinations thereof; and allowing the first and second micro-proppants to self-consolidate. A micro-proppant composition includes a first micro-proppant comprising at least one functional group selected from amino groups, mercapto groups, carboxylates, vinyls, and combinations thereof; and a second micro-proppant comprising at least one functional group selected from acrylates, epoxies, isocyanates, oxazolines, vinyls, and combinations thereof.
    Type: Application
    Filed: December 29, 2015
    Publication date: August 13, 2020
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Mallikarjuna Shroff Rama, Rajender Salla, Monica Rajendra Dandawate, Philip D. Nguyen
  • Publication number: 20200216745
    Abstract: A method of enhanced oil recovery may comprise placing into a subterranean formation a production enhancement fluid comprising a short chain hydrocarbon phase and a silane based wettability modifier, wherein the short chain hydrocarbon phase comprises hydrocarbons having 5 or less carbon atoms; allowing the production enhancement fluid to remain in the subterranean formation for a shut-in period; and producing hydrocarbons from the subterranean formation.
    Type: Application
    Filed: August 31, 2017
    Publication date: July 9, 2020
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Mallikarjuana Shroff Rama, Rajender Salla, Ronald Glen Dusterhoft
  • Patent number: 10703965
    Abstract: Various embodiments disclosed relate to proppant including a swellable coating thereon for treatment of subterranean formations. In various embodiments, the present invention provides a method of treating a subterranean formation. The method includes placing in the subterranean formation a proppant including a coating thereon. The coating is swellable with aqueous medium in response to a trigger including acidic pH, CO2, H2S, or a combination thereof.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: July 7, 2020
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jag Pravesh, Rajender Salla, Philip Nguyen, Vaishali Mishra, Sunita Kadam, Rahul Patil
  • Patent number: 10626322
    Abstract: Various embodiments disclosed relate to acidizing compositions and methods of using the same for treatment of subterranean formations, wherein the acidizing compositions comprise an acid; and a compound having a structure chosen from: Formula (I, II), wherein R1 at each occurrence is independently chosen from —H and substituted or unsubstituted (C1-C30)hydrocarbyl, R2 at each occurrence is independently chosen from —CN, CONRA2, and —COORA, wherein RA at each occurrence is independently chosen from —H and substituted or unsubstituted (C1-C30)hydrocarbyl, R3 at each occurrence is independently chosen from substituted or unsubstituted (C1-C30)hydrocarbyl, a substituted or unsubstituted (C1-C10)heterocyclyl, and a (Ci-C3o)hydrocarbyl substituted by a substituted or unsubstituted (C1-C10)heterocyclyl and interrupted by 0, 1, 2, or 3 groups independently chosen from -0-, —S—, and substituted or unsubstituted —NH—, and M is a Michael-addition donor.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: April 21, 2020
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Ravikant S. Belakshe, Rajender Salla, Ramesh Uppuluri