Patents by Inventor Larry Steven Eoff

Larry Steven Eoff 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: 10647910
    Abstract: The present disclosure relates to oil and gas well proppant compositions and methods for enhancing the conductivity of a propped fracture formed during a hydraulic fracturing operation. The method introduces a micro-proppant slurry prepared with slickwater containing both a low-density and a conventional micro-proppant during injection of the pad fluid stages to prop the natural and induced microfractures open and then injecting a proppant slurry prepared with slickwater containing low-density proppant and conventional frac sand during proppant slurry stage to prop the dominant fractures or large branches, provide open flow paths to keep them connective with the wellbore.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: May 12, 2020
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Philip D. Nguyen, Baidurja Ray, Vishwajit Manajirao Ghatge, Larry Steven Eoff, Christopher Austin Lewis
  • Publication number: 20200123437
    Abstract: The present disclosure relates to oil and gas well proppant compositions and methods for enhancing the conductivity of a propped fracture formed during a hydraulic fracturing operation. The method introduces a micro-proppant slurry prepared with slickwater containing both a low-density and a conventional micro-proppant during injection of the pad fluid stages to prop the natural and induced microfractures open and then injecting a proppant slurry prepared with slickwater containing low-density proppant and conventional frac sand during proppant slurry stage to prop the dominant fractures or large branches, provide open flow paths to keep them connective with the wellbore.
    Type: Application
    Filed: October 19, 2018
    Publication date: April 23, 2020
    Inventors: Philip D. Nguyen, Baidurja Ray, Vishwajit Manajirao Ghatge, Larry Steven Eoff, Christopher Austin Lewis
  • Patent number: 10563491
    Abstract: Downhole pumps may include, at the inlet, a component that reduces the amount of water taken up by the pump. For example, a downhole assembly may include a tool string that includes a fluid pump, a fluid intake subassembly, a motor, and a downhole control system each coupled such that a fluid flowing into the fluid intake assembly is conveyed to the fluid pump; one or more inlets defined in the fluid intake subassembly; a flow line fluidly coupled to at least one of the one or more inlets and containing a filter component that contains a filter media at least partially coated with a relative permeability modifier (RPM), wherein the fluid flowing through the flow line contacts the RPM.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: February 18, 2020
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Matthew Wade Oehler, Larry Steven Eoff
  • Publication number: 20200002603
    Abstract: A method for treating a subterranean formation that includes preparing a treatment fluid comprising a base fluid, a relative permeability modifier (RPM) and a particulate and performing a treatment operation by injecting the treatment fluid into a portion of the subterranean formation.
    Type: Application
    Filed: June 30, 2016
    Publication date: January 2, 2020
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Larry Steven Eoff, Tiffany Anne Pinder, Antonio Recio, III
  • Patent number: 10421896
    Abstract: Methods for treating a subterranean formation include providing a first treatment fluid comprising a plurality of degradable diverting agents, introducing the first treatment fluid into the subterranean formation via a wellbore, and allowing a portion of the plurality of degradable diverting agents to divert a flow of at least a portion of the first treatment fluid or a portion of a second treatment fluid from a first location within the wellbore to a second location within the wellbore. The plurality of degradable diverting agents includes a blend of polylactic acid (PLA) and an acid-soluble hard particulate. Compositions for treating a subterranean formation include the plurality of degradable diverting agents.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: September 24, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Larry Steven Eoff, Tiffany Anne Pinder
  • Publication number: 20190233719
    Abstract: Methods for treating a subterranean formation include providing a first treatment fluid comprising a plurality of degradable diverting agents, introducing the first treatment fluid into the subterranean formation via a wellbore, and allowing a portion of the plurality of degradable diverting agents to divert a flow of at least a portion of the first treatment fluid or a portion of a second treatment fluid from a first location within the wellbore to a second location within the wellbore. The plurality of degradable diverting agents includes a blend of polylactic acid (PLA) and an acid-soluble hard particulate. Compositions for treating a subterranean formation include the plurality of degradable diverting agents.
    Type: Application
    Filed: January 28, 2018
    Publication date: August 1, 2019
    Applicant: Halliburton Energy Services ,Inc.
    Inventors: Larry Steven EOFF, Tiffany Anne PINDER
  • Patent number: 10337282
    Abstract: Systems, compositions, and methods for reducing the production of water in subterranean formations having fractures or voids therein are provided. In one embodiment, the methods comprise: introducing a particulate material into a portion of a subterranean formation comprising one or more fractures or voids; and introducing a treatment fluid comprising a relative permeability modifier into the portion of the subterranean formation such that the permeability of the particulate material in the portion of the subterranean formation to water is reduced.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: July 2, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jose R. Sierra, Julio E. Vasquez, Victor Daniel Escobar, Victor Manuel Cancino, Larry Steven Eoff, Cristian R. Ramirez
  • Publication number: 20190093000
    Abstract: A method of servicing a wellbore in a subterranean formation including combining diverter material and aqueous base fluid to form a diverter fluid, wherein the diverter material is self-suspending and comprises psyllium husk particulates; introducing the diverter fluid into the wellbore; and allowing the diverter material to form a diverter plug in the wellbore or the formation. A method of servicing a wellbore in a subterranean formation including combining diverter material including psyllium husk particulates and a first wellbore servicing fluid; introducing the first wellbore servicing fluid into the wellbore; allowing the diverter material to form a diverter plug in a first location in the wellbore or the formation; diverting the flow of a second wellbore servicing fluid to a second location in the wellbore of formation; and removing the diverter plug, wherein the first and second wellbore servicing fluids may be the same or different.
    Type: Application
    Filed: June 9, 2016
    Publication date: March 28, 2019
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Snehalata S. Agashe, Mahesh Vijaykumar Biyani, Shoy George Chittattukara, Larry Steven Eoff
  • Publication number: 20190040714
    Abstract: Flow control systems are described for variably resisting flow of a fluid composition dependent on the surface energy of the fluid composition. Surface energy is a measure of the wettability of a surface with a particular the fluid. Surface energy dependent flow resistors of the present disclosure include a support structure extending across and/or filling a control passageway such that the surface area exposed to a fluid may be maximized. The flow control systems described may autonomously distinguish between fluid compositions having high and low proportions of a desired fluid component even when the fluid compositions have substantially equal viscosities. Flow control valves are described which may be employed in downhole production and injection equipment.
    Type: Application
    Filed: August 3, 2017
    Publication date: February 7, 2019
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Michael Linley Fripp, Stephen Michael Greci, Larry Steven Eoff
  • Patent number: 10174241
    Abstract: Methods for forming a fluid seal in a subterranean formation may comprise: providing a treatment fluid comprising an aqueous carrier fluid, a sealant composition, and a crosslinked polysaccharide composition. The treatment fluid is introduced into a wellbore penetrating a subterranean formation and the crosslinked polysaccharide composition is formed into a viscosified gel in the wellbore. The viscosified gel substantially spans the diameter of the wellbore and holds the sealant composition in place. After forming the crosslinked polysaccharide composition into a viscosified gel in the wellbore, forming a fluid seal in the wellbore with the sealant composition.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: January 8, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Larry Steven Eoff, B. Raghava Reddy, Natalie Pascarella, Amare Mebratu
  • Publication number: 20180362840
    Abstract: Methods, compositions, and systems that use hydrogels of graft polymers for diversion of acidic treatment fluids in subterranean formations. A method for acid diversion may comprise: applying a first acidizing treatment to a first treatment zone of a subterranean formation; introducing a hydrogel to the first treatment zone, wherein the hydrogel comprises a graft polymer that is crosslinked; and applying a second acidizing treatment to the subterranean formation, wherein the hydrogel diverts the second acidizing treatment to a second treatment zone.
    Type: Application
    Filed: December 21, 2015
    Publication date: December 20, 2018
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Pratiksha Shivaji Meher, Ravikant S. Belakshe, Larry Steven Eoff
  • Publication number: 20180346787
    Abstract: Well treatments that use modified biopolymers for diversion, conformance, fluid loss control, and/or other well treatments, including a method of providing conformance, fluid loss control, or diversion in a subterranean formation, comprising: providing a treatment fluid comprising a base fluid and hydrogel particles, wherein the hydrogel particles comprise modified biopolymers that are crosslinked, the modified biopolymers comprising a biopolymer backbone and a side chains derived from synthetic monomers; and introducing the treatment fluid into a subterranean formation penetrated by a wellbore.
    Type: Application
    Filed: December 18, 2015
    Publication date: December 6, 2018
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Ravikant S. Belakshe, Pratiksha Shivaji Meher, Larry Steven Eoff
  • Publication number: 20180258344
    Abstract: Degradable particulates may allow for temporary redirection or occlusion of a fluid within a subterranean formation. However, many types of degradable particulates can be problematic for large-scale use, such as during subterranean treatment operations. Methods for treating a subterranean formation using degradable particulates may comprise: providing pre-coated particulates comprising a latently dissolvable core and a transient coating surrounding the latently dissolvable core, the latently dissolvable core and the transient coating comprising different materials; and introducing a treatment fluid comprising a carrier fluid and a plurality of the pre-coated particulates into a wellbore penetrating a subterranean formation in conjunction with a stimulation operation, a material comprising the latently dissolvable core being soluble in the carrier fluid or a formation fluid present within the subterranean formation.
    Type: Application
    Filed: November 16, 2015
    Publication date: September 13, 2018
    Inventors: Jeremy A. HOLTSCLAW, Larry Steven EOFF, Nathan Carl SCHULTHEISS
  • Publication number: 20180066175
    Abstract: Methods and compositions that may be used to prevent the water from coming to the surface or otherwise interfering with the production of hydrocarbons are provided. An embodiment of the present disclosure is a method comprising: providing a treatment fluid comprising an aqueous base fluid, a polymer, a metal-based crosslinker, and an amino alkylene phosphonate; and introducing the treatment fluid into a wellbore that penetrates at least a portion of a subterranean formation.
    Type: Application
    Filed: April 22, 2015
    Publication date: March 8, 2018
    Inventors: B. Raghava Reddy, Larry Steven Eoff, Natalie Lynn Pascarella
  • Publication number: 20180022982
    Abstract: Systems, compositions, and methods for reducing the production of water in subterranean formations having fractures or voids therein are provided. In one embodiment, the methods comprise: introducing a particulate material into a portion of a subterranean formation comprising one or more fractures or voids; and introducing a treatment fluid comprising a relative permeability modifier into the portion of the subterranean formation such that the permeability of the particulate material in the portion of the subterranean formation to water is reduced.
    Type: Application
    Filed: March 26, 2015
    Publication date: January 25, 2018
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Jose R. Sierra, Julio E. Vasquez, Victor Daniel Escobar, Victor Manuel Cancino, Larry Steven Eoff, Cristian R. Ramirez
  • Publication number: 20180010432
    Abstract: Downhole pumps may include, at the inlet, a component that reduces the amount of water taken up by the pump. For example, a downhole assembly may include a tool string that includes a fluid pump, a fluid intake subassembly, a motor, and a downhole control system each coupled such that a fluid flowing into the fluid intake assembly is conveyed to the fluid pump; one or more inlets defined in the fluid intake subassembly; a flow line fluidly coupled to at least one of the one or more inlets and containing a filter component that contains a filter media at least partially coated with a relative permeability modifier (RPM), wherein the fluid flowing through the flow line contacts the RPM.
    Type: Application
    Filed: February 25, 2015
    Publication date: January 11, 2018
    Inventors: Matthew Wade OEHLER, Larry Steven EOFF
  • Patent number: 9771773
    Abstract: Systems and methods for modifying rheology of a cement slurry are described. Methods may include forming a cement slurry composition and placing the cement slurry composition in a subterranean formation. The cement slurry composition contains water, diutan, and a magnesium oxychloride-based Sorel cement and can have specified properties for a ratio of diutan to water, a thixotropic index value, and a yield point.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: September 26, 2017
    Assignee: Halliburton Energy Services, Inc.
    Inventors: B. Raghava Reddy, Natalie Lynn Pascarella, Antonio Recio, III, Larry Steven Eoff
  • Patent number: 9644130
    Abstract: Suppressing passage of an aqueous fluid in a subterranean formation in preference to passage of an oleaginous fluid can often be desirable. Methods for suppressing the passage of an aqueous fluid in a subterranean formation, particularly a carbonate formation, can comprise: providing a treatment fluid comprising a carrier fluid and a relative permeability modifier comprising a reaction product of 1) an acrylamide polymer, any copolymer thereof, any derivative thereof, any salt thereof, or any combination thereof, and 2) a plurality of amine-containing compounds or any salt thereof, each amine-containing compound containing a primary amine, a secondary amine, or any combination thereof, and the amine-containing compounds being randomly reacted with at least a portion of the amide groups of the acrylamide polymer; and introducing the treatment fluid into a subterranean formation.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: May 9, 2017
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Antonio Recio, III, Larry Steven Eoff, B. Raghava Reddy, Christopher Austin Lewis
  • Patent number: 9598631
    Abstract: Compositions and methods for treating a water and hydrocarbon producing subterranean formation to reduce the water permeability of the formation without reducing the hydrocarbon permeability of the formation are provided. In one embodiment, the method includes providing a treatment fluid including a base fluid and a relative permeability modifier including a polymer of at least one hydrophilic monomer and at least one hydrophobically modified hydrophilic monomer, wherein the polymer includes a sulfonate moiety, and introducing the treatment fluid into at least a portion of a subterranean formation.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: March 21, 2017
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Antonio Recio, III, Larry Steven Eoff, Baireddy Raghava Reddy, Christopher Austin Lewis
  • Publication number: 20170073567
    Abstract: Systems and methods for modifying rheology of a cement slurry are described. Systems and methods may include a composition including diutan and a Sorel cement.
    Type: Application
    Filed: June 12, 2014
    Publication date: March 16, 2017
    Applicant: Halliburton Energy Services, Inc.
    Inventors: B. Raghava Reddy, Natalie Lynn Pascarella, Antonio Recio, III, Larry Steven Eoff