Patents by Inventor Roger L. Schultz

Roger L. Schultz 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: 8286707
    Abstract: A system for treating a subterranean zone includes a combustion driven compressor in communication with a supply of a component of a combustion mixture. The compressor is configured to compress the component of the combustion mixture and has a combustion exhaust. A source of treatment fluid for treating the subterranean zone is coupled to the combustion exhaust to supply the treatment fluid in heat transfer communication with the combustion exhaust. In certain instances, compressor is driven by combusting the combustion mixture. In certain instances, the combustion mixture is combusted in separate combustor.
    Type: Grant
    Filed: July 6, 2007
    Date of Patent: October 16, 2012
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Roger L. Schultz, David J. Steele, Travis W. Cavender
  • Patent number: 8286701
    Abstract: A device has a first elongate tubular body and a second elongate tubular body coupled to the first tubular body, both adapted to reside in the wellbore. The device is changeable between the first tubular body axially fixed against movement in a first direction relative to the second tubular body and axially moveable in the first direction relative to the second elongate tubular body in response to temperature.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: October 16, 2012
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Roger L. Schultz, Travis W. Cavender, Robert L. Pipkin, David J. Steele
  • Publication number: 20120227970
    Abstract: A method and apparatus for delivering repetitive jarring impacts to a stuck object downhole. The jarring tool is deployed on coiled tubing or other tubular well conduit, and fluid pressure is used to cycle the jar without reciprocating the well conduit at the wellhead. The tool includes a hydraulic reset assembly. The hydraulic chamber is in fluid communication with the flow path through the tool. Thus, when the internal fluid pressure inside the tool exceeds the external pressure in the well, the fluid pressure drives the piston in the hydraulic chamber to urge the tool toward the contracted position. In this way, the reset assembly can overcome the tendency of fluid pressure to extend the tool. The reset assembly can be configured to balance or equalize the extension pressure, to prevent undesired cocking of the tool, or to overcome the extension pressure to contract the tool for recocking the jar mechanism.
    Type: Application
    Filed: March 10, 2011
    Publication date: September 13, 2012
    Applicant: THRU TUBING SOLUTIONS, INC.
    Inventors: Roger L. Schultz, Andrew M. Ferguson, Michael L. Connell
  • Patent number: 8235118
    Abstract: A subterranean zone is treated by exothermically decomposing hydrogen peroxide in or near the subterranean zone. The decomposed hydrogen peroxide yields at least oxygen and heated water. The oxygen is combusted to further heat the heated water. The heated water is introduced into subterranean zone to treat the subterranean zone. In certain instances, the heated water is heated to produce 100% quality steam. Additional water may be supplied for treating the subterranean zone, for example, by supplying the hydrogen peroxide in solution with water.
    Type: Grant
    Filed: July 6, 2007
    Date of Patent: August 7, 2012
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Roger L. Schultz, Travis W. Cavender, Matt E. Blauch
  • Publication number: 20120193106
    Abstract: A device has a first elongate tubular body and a second elongate tubular body coupled to the first tubular body, both adapted to reside in the wellbore. The device is changeable between the first tubular body axially fixed against movement in a first direction relative to the second tubular body and axially moveable in the first direction relative to the second elongate tubular body in response to temperature.
    Type: Application
    Filed: April 4, 2012
    Publication date: August 2, 2012
    Inventors: Roger L. Schultz, Travis W. Cavender, Robert L. Pipkin, David J. Steele
  • Patent number: 8220545
    Abstract: In some embodiments, an apparatus includes a tool for a downhole operation. The tool includes a downhole power source to generate power. The tool also includes a cooler module to lower temperature based on the power.
    Type: Grant
    Filed: January 26, 2010
    Date of Patent: July 17, 2012
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Bruce H. Storm, Jr., Roger L. Schultz, Michael L. Fripp
  • Publication number: 20120167994
    Abstract: A well tool can comprise a fluid input, a fluid output and a fluidic oscillator which produces oscillations in a fluid which flows from the input to the output. The fluidic oscillator can include a vortex chamber with inlets, whereby fluid enters the vortex chamber alternately via the inlets, the inlets being configured so that the fluid enters the vortex chamber in different directions via the respective inlets, and a fluid switch which directs the fluid alternately toward different flow paths in response to pressure differentials between feedback fluid paths. The feedback fluid paths may be connected to the vortex chamber. The flow paths may cross each other between the fluid switch and the outlet.
    Type: Application
    Filed: December 31, 2010
    Publication date: July 5, 2012
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Roger L. SCHULTZ, Robert L. PIPKIN, Travis CAVENDER
  • Publication number: 20120168015
    Abstract: A method of manufacturing a fluidic oscillator insert for use in a subterranean well can include forming the insert with a conical housing engagement surface thereon, and forming at least one fluidic oscillator on a substantially planar surface of the insert. A well tool can include a housing assembly, at least one insert received in the housing assembly, the insert having a fluidic oscillator formed on a first surface thereof, the insert being at least partially secured in the housing assembly by engagement of conical second and third surfaces formed on the insert and housing assembly, and a cover which closes off the first surface on the insert. An insert for use in a well tool can include a conical housing engagement surface, and at least one fluidic oscillator formed on a substantially planar surface. The fluidic oscillator produces oscillations in response to fluid flow through the fluidic oscillator.
    Type: Application
    Filed: December 31, 2010
    Publication date: July 5, 2012
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Roger L. SCHULTZ, Robert PIPKIN
  • Publication number: 20120168013
    Abstract: A method of manufacturing a fluidic oscillator insert for use in a subterranean well can include forming the insert with a conical surface thereon, and forming at least one fluidic oscillator on the conical surface. A well tool can include a housing assembly, at least one insert received in the housing assembly, the insert having multiple fluidic oscillators formed therein, and wherein the fluidic oscillators produce oscillations in response to fluid flow through the fluidic oscillators. An insert for use in a well tool can include an exterior conical surface, at least one fluidic oscillator formed on the conical surface, and wherein the fluidic oscillator produces oscillations in response to fluid flow through the fluidic oscillator.
    Type: Application
    Filed: December 31, 2010
    Publication date: July 5, 2012
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Roger L. SCHULTZ, Robert PIPKIN
  • Publication number: 20120168014
    Abstract: A fluidic oscillator can include an input, first and second outputs on opposite sides of a longitudinal axis of the oscillator, whereby a majority of fluid which flows through the oscillator exits the oscillator alternately via the first and second outputs, first and second paths from the input to the respective first and second outputs, and wherein the first and second paths cross each other between the input and the respective first and second outputs. Another oscillator can include an input, first and second outputs, whereby a majority of fluid flowing through the fluidic oscillator exits the oscillator alternately via the first and second outputs, first and second paths from the input to the respective first and second outputs, and a feedback path which intersects the first path, whereby reduced pressure in the feedback path influences the majority of fluid to flow via the second path.
    Type: Application
    Filed: December 31, 2010
    Publication date: July 5, 2012
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Roger L. SCHULTZ, Robert PIPKIN
  • Publication number: 20120160495
    Abstract: Systems and methods for thermal recovery of shallow bitumen using increased permeability inclusions. A method of producing hydrocarbons from a subterranean formation includes the steps of: propagating at least one generally planar inclusion outward from a wellbore into the formation; injecting a fluid into the inclusion, thereby heating the hydrocarbons; and during the injecting step, producing the hydrocarbons from the wellbore. A well system includes at least one generally planar inclusion extending outward from a wellbore into a formation; a fluid injected into the inclusion, hydrocarbons being heated as a result of the injected fluid; and a tubular string through which the hydrocarbons are produced, the tubular string extending to a location in the wellbore below the inclusion, and the hydrocarbons being received into the tubular string at that location.
    Type: Application
    Filed: March 3, 2012
    Publication date: June 28, 2012
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Roger L. SCHULTZ, Travis W. CAVENDER, Grant HOCKING
  • Publication number: 20120145399
    Abstract: A method of producing liquid hydrocarbons from a subterranean formation can include flowing the liquid hydrocarbons from the formation through at least one valve, and increasingly restricting flow through the valve in response to pressure and temperature in the formation approaching a bubble point curve from a liquid phase side thereof. A method of producing gaseous hydrocarbons from a subterranean formation can include flowing the gaseous hydrocarbons from the formation through at least one valve, and increasingly restricting flow through the valve in response to pressure and temperature in the formation approaching a hydrocarbon gas condensate saturation curve from a gaseous phase side thereof.
    Type: Application
    Filed: December 14, 2010
    Publication date: June 14, 2012
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Roger L. SCHULTZ, Travis W. CAVENDER
  • Publication number: 20120145404
    Abstract: A valve for controlling flow in a subterranean well can include a working fluid and a closure member which rotates in response to phase change in the working fluid. A well system can include a valve which controls flow between a wellbore and a tubular string, with the valve including a working fluid and a closure member which rotates in response to phase change in the working fluid. Rotation of the closure member can displace a seat relative to a plug of a check valve.
    Type: Application
    Filed: December 14, 2010
    Publication date: June 14, 2012
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Roger L. Schultz, Robert Pipkin, Travis W. Cavender
  • Publication number: 20120145398
    Abstract: A method of producing from a subterranean formation can include injecting steam into the formation, and then automatically opening at least one valve in response to the steam condensing. A well system can include a tubular string disposed in a wellbore, the tubular string including at least one valve, steam which flows from the wellbore into a formation surrounding the wellbore, and alternately flows from the formation into the wellbore as liquid water, and the valve opening automatically in response to presence of the liquid water in the wellbore.
    Type: Application
    Filed: December 14, 2010
    Publication date: June 14, 2012
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Roger L. SCHULTZ, Travis W. CAVENDER
  • Publication number: 20120145397
    Abstract: A method of geothermal energy production can include injecting water into a formation, and then automatically decreasing resistance to flow through at least one valve in response to the water changing phase in the formation. A geothermal well system can include a tubular string disposed in a production wellbore, the tubular string including at least one valve, water which flows from an injection wellbore into a formation surrounding the wellbore, and then flows from the formation into the production wellbore as steam, and resistance to flow through the valve decreasing automatically in response to presence of the steam in the production wellbore. Another method of geothermal energy production can include injecting water into a formation from an injection wellbore, the water changing phase in the formation, and then automatically decreasing resistance to fluid flow through at least one valve in response to presence of steam in a production wellbore.
    Type: Application
    Filed: December 14, 2010
    Publication date: June 14, 2012
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Roger L. SCHULTZ, Travis W. CAVENDER
  • Patent number: 8162054
    Abstract: One apparatus for releasing a chemical in a well bore includes a casing collar configured to couple to a casing string. A chemical container is disposed within the casing collar, and the casing collar is configured to release the chemical from the chemical reservoir.
    Type: Grant
    Filed: August 24, 2009
    Date of Patent: April 24, 2012
    Assignee: Halliburton Energy Services Inc.
    Inventors: Roger L. Schultz, Gary P. Funkhouser, Robert Pipkin
  • Publication number: 20120096416
    Abstract: Semiconductor devices, logic devices, libraries to represent logic devices, and methods for designing and fabricating the same are disclosed. The semiconductor devices include a substrate comprising sapphire or diamond, an active layer disposed on the substrate, the active layer having a thickness tSi and comprising a channel region having a length L, where L/tSi is above 7 and an oxide layer disposed on the active layer.
    Type: Application
    Filed: December 22, 2011
    Publication date: April 19, 2012
    Inventors: Chriswell G. Hutchens, Roger L. Schultz, Venkataraman Jeyaraman
  • Patent number: 8151874
    Abstract: Systems and methods for thermal recovery of shallow bitumen using increased permeability inclusions. A method of producing hydrocarbons from a subterranean formation includes the steps of: propagating at least one generally planar inclusion outward from a wellbore into the formation; injecting a fluid into the inclusion, thereby heating the hydrocarbons; and during the injecting step, producing the hydrocarbons from the wellbore. A well system includes at least one generally planar inclusion extending outward from a wellbore into a formation; a fluid injected into the inclusion, hydrocarbons being heated as a result of the injected fluid; and a tubular string through which the hydrocarbons are produced, the tubular string extending to a location in the wellbore below the inclusion, and the hydrocarbons being received into the tubular string at that location.
    Type: Grant
    Filed: November 13, 2008
    Date of Patent: April 10, 2012
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Roger L. Schultz, Travis W. Cavender, Grant Hocking
  • Patent number: 8136594
    Abstract: Methods and apparatuses for releasing a chemical in a well bore are disclosed. One apparatus includes a curved member configured for coupling to a casing, and a hollow member is connected to the curved member. A chemical container is disposed, at least in part, within the hollow space, and the hollow member extends at least partially around a hollow space.
    Type: Grant
    Filed: August 24, 2009
    Date of Patent: March 20, 2012
    Assignee: Halliburton Energy Services Inc.
    Inventors: Steven G. Streich, Roger L. Schultz, Lance E. Brothers, Sam J. Lewis
  • Publication number: 20120061072
    Abstract: Methods and apparatuses for releasing a chemical in a well bore are disclosed. One apparatus includes a curved member configured for coupling to a casing, and a hollow member is connected to the curved member. A chemical container is disposed, at least in part, within the hollow space, and the hollow member extends at least partially around a hollow space.
    Type: Application
    Filed: September 30, 2011
    Publication date: March 15, 2012
    Inventors: Steven G. Streich, Roger L. Schultz, Lance E. Brothers, Sam J. Lewis