Patents by Inventor B. Raghava Reddy

B. Raghava Reddy 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).

  • Loss circulation compositions (LCM) having Portland cement clinker
    Patent number: 10450496
    Abstract: Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided.
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: October 22, 2019
    Assignee: Saudi Arabian Oil Company
    Inventor: B. Raghava Reddy
  • Settable, form-filling loss circulation control compositions comprising in situ foamed calcium aluminate cement systems and methods of using them
    Patent number: 10450495
    Abstract: This document relates to settable, hydraulic, non-Portland foamed cement compositions comprising nitrogen gas-generating compositions used for loss circulation control.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: October 22, 2019
    Assignee: Saudi Arabian Oil Company
    Inventor: B. Raghava Reddy
  • Loss circulation compositions (LCM) having Portland cement clinker
    Patent number: 10450497
    Abstract: Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided.
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: October 22, 2019
    Assignee: Saudi Arabian Oil Company
    Inventor: B. Raghava Reddy
  • SETTABLE, FORM-FILLING LOSS CIRCULATION CONTROL COMPOSITIONS COMPRISING IN SITU FOAMED NON-HYDRAULIC SOREL CEMENT SYSTEMS AND METHOD OF USE
    Publication number: 20190316022
    Abstract: This document relates to settable, non-hydraulic foamed cement compositions comprising nitrogen gas-generating compositions used for loss circulation control.
    Type: Application
    Filed: June 27, 2019
    Publication date: October 17, 2019
    Applicant: Saudi Arabian Oil Company
    Inventor: B. Raghava Reddy
  • Downhole fluids and methods of use thereof
    Patent number: 10428259
    Abstract: The present disclosure relates to downhole fluid additives including a clay, a hydroxylated polymer, a cation, and water. The disclosure further relates to downhole fluids, including drilling fluids, spaces, cements, and proppant delivery fluids containing such as downhole fluid additive and methods of using such fluids. The downhole fluid additive may have any of a variety of functions in the downhole fluid and may confer any of a variety of properties upon it, such as salt tolerance or desired viscosities even at high downhole temperatures.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: October 1, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Vivek S. Goel, Peter James Boul, Xueyu Pang, Lee J. Hall, Jay P. Deville, Samuel J. Lewis, B. Raghava Reddy, Trissa Joseph, Xiangnan Ye
  • Loss Circulation Compositions (LCM) Having Portland Cement Clinker
    Publication number: 20190292433
    Abstract: Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided.
    Type: Application
    Filed: June 13, 2019
    Publication date: September 26, 2019
    Inventor: B. Raghava Reddy
  • Loss Circulation Compositions (LCM) Having Portland Cement Clinker
    Publication number: 20190292434
    Abstract: Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided.
    Type: Application
    Filed: June 13, 2019
    Publication date: September 26, 2019
    Inventor: B. Raghava Reddy
  • Reversible aminal gel compositions, methods, and use
    Patent number: 10421891
    Abstract: A well treatment composition for use in a hydrocarbon-bearing reservoir comprising a reversible aminal gel composition is disclosed. The reversible aminal gel composition includes a liquid precursor composition. The liquid precursor composition is operable to remain in a liquid state at about room temperature. The liquid precursor composition comprises an organic amine composition; an aldehyde composition; a polar aprotic organic solvent; and a metal salt composition with valence 3, 4, or 5. The liquid precursor composition transitions from the liquid state to a gel state responsive to an increase in temperature in the hydrocarbon-bearing reservoir.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: September 24, 2019
    Assignee: SAUDI ARABIAN OIL COMPANY
    Inventors: Peter J. Boul, B. Raghava Reddy, Matt Hilfiger, Carl Thaemlitz
  • Loss circulation compositions (LCM) having portland cement clinker
    Patent number: 10414967
    Abstract: Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: September 17, 2019
    Assignee: Saudi Arabian Oil Company
    Inventor: B. Raghava Reddy
  • Settable, form-filling loss circulation control compositions comprising in situ foamed calcium aluminate cement systems and methods of using them
    Patent number: 10414968
    Abstract: This document relates to settable, hydraulic, non-Portland foamed cement compositions comprising nitrogen gas-generating compositions used for loss circulation control.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: September 17, 2019
    Assignee: Saudi Arabian Oil Company
    Inventor: B. Raghava Reddy
  • SETTABLE, FORM-FILLING LOSS CIRCULATION CONTROL COMPOSITIONS COMPRISING IN SITU FOAMED NON-HYDRAULIC SOREL CEMENT SYSTEMS AND METHOD OF USE
    Publication number: 20190276726
    Abstract: This document relates to settable, non-hydraulic foamed cement compositions comprising nitrogen gas-generating compositions used for loss circulation control.
    Type: Application
    Filed: May 13, 2019
    Publication date: September 12, 2019
    Applicant: Saudi Arabian Oil Company
    Inventor: B. Raghava Reddy
  • Settable, form-filling loss circulation control compositions comprising in situ foamed calcium aluminate cement systems and methods of using them
    Patent number: 10400154
    Abstract: This document relates to settable, hydraulic, non-Portland foamed cement compositions comprising nitrogen gas-generating compositions used for loss circulation control.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: September 3, 2019
    Assignee: Saudi Arabian Oil Company
    Inventor: B. Raghava Reddy
  • Settable, form-filling loss circulation control compositions comprising in situ foamed non-hydraulic sorel cement systems and method of use
    Patent number: 10385255
    Abstract: This document relates to settable, non-hydraulic foamed cement compositions comprising nitrogen gas-generating compositions used for loss circulation control.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: August 20, 2019
    Assignee: Saudi Arabian Oil Company
    Inventor: B. Raghava Reddy
  • Loss circulation compositions (LCM) having portland cement clinker
    Patent number: 10370580
    Abstract: Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: August 6, 2019
    Assignee: Saudi Arabian Oil Company
    Inventor: B. Raghava Reddy
  • CEMENT COMPOSITIONS COMPRISING AQUEOUS LATEX CONTAINING DISPERSED SOLID AND LIQUID ELASTOMER PHASES
    Publication number: 20190225859
    Abstract: A composition for use as a latex cement additive, the composition comprising an aqueous latex, the aqueous latex comprising an aqueous fluid and a solid elastomer, where the solid elastomer is dispersed in the aqueous fluid; a liquid elastomer, the liquid elastomer having a viscosity between 50,000 cP and 300,000 cP at room temperature; and a surfactant, the surfactant operable to facilitate incorporation of the liquid elastomer into the aqueous latex.
    Type: Application
    Filed: April 2, 2019
    Publication date: July 25, 2019
    Applicant: Saudi Arabian Oil Company
    Inventor: B. Raghava REDDY
  • CEMENT COMPOSITIONS COMPRISING AQUEOUS LATEX CONTAINING DISPERSED SOLID AND LIQUID ELASTOMER PHASES
    Publication number: 20190225857
    Abstract: A composition for use as a latex cement additive, the composition comprising an aqueous latex, the aqueous latex comprising an aqueous fluid and a solid elastomer, where the solid elastomer is dispersed in the aqueous fluid; a liquid elastomer, the liquid elastomer having a viscosity between 50,000 cP and 300,000 cP at room temperature; and a surfactant, the surfactant operable to facilitate incorporation of the liquid elastomer into the aqueous latex.
    Type: Application
    Filed: April 2, 2019
    Publication date: July 25, 2019
    Applicant: Saudi Arabian Oil Company
    Inventor: B. Raghava REDDY
  • CEMENT COMPOSITIONS COMPRISING AQUEOUS LATEX CONTAINING DISPERSED SOLID AND LIQUID ELASTOMER PHASES
    Publication number: 20190225858
    Abstract: A composition for use as a latex cement additive, the composition comprising an aqueous latex, the aqueous latex comprising an aqueous fluid and a solid elastomer, where the solid elastomer is dispersed in the aqueous fluid; a liquid elastomer, the liquid elastomer having a viscosity between 50,000 cP and 300,000 cP at room temperature; and a surfactant, the surfactant operable to facilitate incorporation of the liquid elastomer into the aqueous latex.
    Type: Application
    Filed: April 2, 2019
    Publication date: July 25, 2019
    Applicant: Saudi Arabian Oil Company
    Inventor: B. Raghava REDDY
  • SETTABLE, FORM-FILLING LOSS CIRCULATION CONTROL COMPOSITIONS COMPRISING IN SITU FOAMED CALCIUM ALUMINATE CEMENT SYSTEMS AND METHODS OF USING THEM
    Publication number: 20190225862
    Abstract: This document relates to settable, hydraulic, non-Portland foamed cement compositions comprising nitrogen gas-generating compositions used for loss circulation control.
    Type: Application
    Filed: October 25, 2018
    Publication date: July 25, 2019
    Applicant: Saudi Arabian Oil Company
    Inventor: B. Raghava Reddy
  • SETTABLE, FORM-FILLING LOSS CIRCULATION CONTROL COMPOSITIONS COMPRISING IN SITU FOAMED CALCIUM ALUMINATE CEMENT SYSTEMS AND METHODS OF USING THEM
    Publication number: 20190225864
    Abstract: This document relates to settable, hydraulic, non-Portland foamed cement compositions comprising nitrogen gas-generating compositions used for loss circulation control.
    Type: Application
    Filed: January 24, 2019
    Publication date: July 25, 2019
    Applicant: Saudi Arabian Oil Company
    Inventor: B. Raghava Reddy
  • SETTABLE, FORM-FILLING LOSS CIRCULATION CONTROL COMPOSITIONS COMPRISING IN SITU FOAMED NON-HYDRAULIC SOREL CEMENT SYSTEMS AND METHOD OF USE
    Publication number: 20190225860
    Abstract: This document relates to settable, non-hydraulic foamed cement compositions comprising nitrogen gas-generating compositions used for loss circulation control.
    Type: Application
    Filed: September 21, 2018
    Publication date: July 25, 2019
    Applicant: Saudi Arabian Oil Company
    Inventor: B. Raghava Reddy