Patents Represented by Attorney, Agent or Law Firm Marlin R. Smith
  • Patent number: 7802621
    Abstract: Inflow control devices for sand control screens. A well screen includes a filter portion and at least two flow restrictors configured in series, so that fluid which flows through the filter portion must flow through each of the flow restrictors. At least two tubular flow restrictors may be configured in series, with the flow restrictors being positioned so that fluid which flows through the filter portion must reverse direction twice to flow between the flow restrictors. A method of installing a well screen includes the step of accessing a flow restrictor by removing a portion of an inflow control device of the screen.
    Type: Grant
    Filed: April 24, 2006
    Date of Patent: September 28, 2010
    Assignee: Halliburton Energy Services, Inc.
    Inventors: William M. Richards, Ronald G. Dusterhoft, William D. Henderson, Travis T. Hailey, Jr.
  • Patent number: 7798229
    Abstract: A valve system for use in a subterranean well, the valve having multiple closure devices, or a closure device and a device for protecting the closure device. A valve system includes a valve with a closure assembly. The closure assembly has a closure device and a protective device which alters fluid flow through a flow passage of the valve prior to closure of the closure device to thereby protect the closure device. A safety valve system includes a safety valve with a closure assembly having at least two closure devices arranged in series for controlling flow through a flow passage of the safety valve. Another safety valve system includes a safety valve assembly including multiple safety valves arranged in parallel. One portion of fluid from a fluid source flows through one of the safety valves, while another portion of fluid from the fluid source flows through another safety valve.
    Type: Grant
    Filed: January 24, 2005
    Date of Patent: September 21, 2010
    Assignee: Halliburton Energy Services, Inc.
    Inventors: James D. Vick, Jr., Michael B. Vinzant, James M. Williams
  • Patent number: 7785080
    Abstract: A downhole ram pump. A downhole pump system includes a flow restricting device which variably restricts fluid flow through an opening, the restricting device vibrating in response to the fluid flow, thereby alternately increasing and decreasing the fluid flow through the opening; and a pump device which generates a pressure differential in response to vibration of the restricting device. Another downhole pump system includes a flow restricting device which vibrates in response to fluid flow through an opening, thereby alternately increasing and decreasing the fluid flow through the opening, a pressure differential across the restricting device variably biasing the restricting device to increasingly restrict the fluid flow through the opening, and the pressure differential alternately increasing and decreasing in response to respective alternate increasing and decreasing flow through the opening; and a pump device which generates differential pressure in response to vibration of the restricting device.
    Type: Grant
    Filed: May 30, 2006
    Date of Patent: August 31, 2010
    Assignee: Welldynamics, Inc.
    Inventor: Timothy R. Tips
  • Patent number: 7784532
    Abstract: Shunt tube flowpaths extending through swellable packers. A well system includes a packer assembly including a base pipe and an annular seal element which is swellable in response to contact with a selected fluid, and a shunt tube flowpath extending through the seal element for delivery of a slurry in a gravel packing operation. A swellable packer assembly includes a base pipe; a swellable annular seal element having a shunt tube flowpath extending through a swellable material; and a valve connected to the flowpath and positioned within the swellable material. Another well system comprises a packer assembly including a base pipe and an annular seal element which is swellable in response to contact with a selected fluid; a shunt tube flowpath extending through a swellable material of the seal element; and a connection between the flowpath and a shunt tube assembly, the connection being positioned within the swellable material.
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: August 31, 2010
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Alf K. Sevre, Tom R. Koloy, Allen Wilkins, Rutger Evers
  • Patent number: 7779912
    Abstract: A well tool having a magnetically coupled position sensor. In operation of a well tool, relative displacement is produced between members of the well tool. A magnetically coupled position sensor includes one magnet assembly attached to a member for displacement therewith and another magnet assembly movably attached to the other member and magnetically coupled to the first magnet assembly for displacement therewith. The position sensor further includes a magnetically permeable material which increases a magnetic flux density between the magnet assemblies. The magnetically permeable material may be positioned between magnets of the magnet assemblies and/or spaced apart therefrom.
    Type: Grant
    Filed: February 27, 2007
    Date of Patent: August 24, 2010
    Assignee: Welldynamics, Inc.
    Inventor: Robert W. Gissler
  • Patent number: 7781939
    Abstract: Thermal expansion matching for an acoustic telemetry system. An acoustic telemetry system includes at least one electromagnetically active element and a biasing device which reduces a compressive force in the element in response to increased temperature. A method of utilizing an acoustic telemetry system in an elevated temperature environment includes the steps of: applying a compressive force to at least one electromagnetically active element of the telemetry system; and reducing the compressive force as the temperature of the environment increases.
    Type: Grant
    Filed: May 27, 2009
    Date of Patent: August 24, 2010
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Michael L. Fripp, John P. Rodgers, Adam D. Wright
  • Patent number: 7775100
    Abstract: A real-time line management system and associated methods. A line management system for use in conjunction with an operation in a subterranean well includes a line installed in the well during the operation, and a computing device which indicates a used life of the line during the operation. A method of managing a line used in an operation in a subterranean well includes the steps of: installing the line in the well during the operation; and determining a used life of the line while the line is installed in the well. A method of managing a line used in multiple operations in one or more subterranean wells includes the steps of: estimating conditions which will be experienced by the line during a future operation; and predicting before the future operation what a used life of the line will be after the line is used in the future operation.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: August 17, 2010
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Orlando De Jesus, Richard Mineo, Jerry C. Foster, Syed Hamid
  • Patent number: 7762344
    Abstract: A swellable packer construction for continuous or segmented tubing. A method of constructing a swellable packer on a continuous tubular string includes the steps of: attaching a swellable seal material to the tubular string to thereby form the packer; and then wrapping the tubular string with the packer on a spool. A swellable packer includes a tubular body portion for incorporation into a tubular string, and a seal material wrapped about the body portion, the seal material being swellable in response to contact with a fluid. A method of constructing a swellable packer for a tubular string includes the steps of: wrapping a seal material about a tubular body portion to thereby form the packer; and then swelling the seal material in response to contact with a fluid. A continuous tubular string includes a seal material attached to a body portion of the tubular string to thereby form a swellable packer; and the packer wrapped with the tubular string on a spool.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: July 27, 2010
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Perry W. Courville, Mark Kalman
  • Patent number: 7762322
    Abstract: A swellable packer with variable quantity feed-throughs for lines. A packer assembly for use in a subterranean well includes a generally tubular swellable seal element having an outer generally cylindrical surface, one or more cavities extending longitudinally through the seal element, and one or more longitudinally extending splits in the seal element between the outer surface and each of the cavities. One or more elongated plugs are positioned within at least one of the cavities. A method of sealing a fluid passage in a subterranean well includes the steps of: inserting one or more elongated plugs in one or more cavities which extend longitudinally through a swellable seal element of a packer assembly; and installing the packer assembly in the well. The installing step includes removing a selected number of the plugs from the cavities, and replacing the selected number of the plugs with a corresponding number of lines.
    Type: Grant
    Filed: May 14, 2008
    Date of Patent: July 27, 2010
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Kristian Andersen, Jonny Haugen
  • Patent number: 7757763
    Abstract: Casing deformation and control for inclusion propagation in earth formations. A method of forming at least one inclusion in a subterranean formation includes the steps of: installing a liner within a casing section in a wellbore intersecting the formation; and expanding the liner and the casing section, thereby applying an increased compressive stress to the formation. Another method of forming the inclusion includes the steps of: installing an expansion control device on a casing section, the device including at least one latch member; expanding the casing section radially outward in a wellbore, the expanding step including widening at least one opening in a sidewall of the casing section, and displacing the latch member in one direction; and preventing a narrowing of the opening after the expanding step, the latch member resisting displacement thereof in an opposite direction.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: July 20, 2010
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Travis W. Cavender, Roger L. Schultz, Grant Hocking, Robert Pipkin
  • Patent number: 7758016
    Abstract: A ball valve comprising a housing, a ball seat disposed within the housing, and a ball rotatably movable within the housing, and engageable with the ball seat in order to provide a seal within the ball valve and the ball seat, wherein the ball seat comprises multiple seat surfaces independently capable of engaging the ball, a first seat surface engaging the ball to form a first seal, and being arranged such that pressure acting from above pushes the first seat surface against the ball; a second seat surface being movable relative to the first seat surface and engaging the ball to form a second seal, the second seat surface being arranged such that pressure acting from below causes the second seat surface to move relative to the first seat surface and pushes the second seat surface into contact with the ball.
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: July 20, 2010
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Gordon Kenneth Scott, James Crabb, Ronald George Taylor
  • Patent number: 7730954
    Abstract: A hydraulic control and actuation system for downhole tools. In a described embodiment, a hydraulic control and actuation system includes an internal chamber serving as a low pressure region and a well annulus serving as an energy source. A valve assembly provides selective fluid communication between alternating opposite sides of a piston and each of the energy source and low pressure region. Displacement of the piston operates a well tool. Operation of the valve assembly is controlled via telemetry between a remote location and an electronic circuit of the system.
    Type: Grant
    Filed: October 18, 2006
    Date of Patent: June 8, 2010
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Roger L. Schultz, Melissa G. Allin, Paul D. Ringgenberg, Vincent P. Zeller, Tyler T. Trinh, Adam D. Wright, Donald G. Kyle
  • Patent number: 7730957
    Abstract: Installation of lines in well tools. A well tool for use in conjunction with a subterranean well includes connectors at opposite ends of the well tool, a line extending between the connectors; at least one threaded connection at a position between the connectors; and an anti-rotation device which permits make-up of the threaded connection without relative rotation between ends of the line. A method of installing a line in a well tool includes the steps of: making-up a threaded connection at a position between end connectors of the well tool; and preventing relative rotation between ends of the line during the threaded connection making-up step, the line extending between the connectors.
    Type: Grant
    Filed: August 1, 2007
    Date of Patent: June 8, 2010
    Assignee: Halliburton Energy Services, Inc.
    Inventors: James R. Blanton, Ronald W. McGregor
  • Patent number: 7730956
    Abstract: Pressure balanced downhole connections. A well system includes a well tool, a conduit assembly connected to the well tool, the conduit assembly including a conduit and a line positioned within the conduit, the line being connected to the well tool for operation of the well tool, and a device for equalizing pressure between an interior and an exterior of the conduit, the device being positioned downhole. A method of isolating a line in a subterranean well from well fluids in the well includes the steps of: connecting a conduit assembly to a device for equalizing pressure between an interior and an exterior of the conduit assembly, the conduit assembly including a line installed within a conduit; and positioning the conduit assembly and pressure equalizing device in the well.
    Type: Grant
    Filed: May 22, 2007
    Date of Patent: June 8, 2010
    Assignee: Welldynamics, Inc.
    Inventor: Mitchell C. Smithson
  • Patent number: 7726401
    Abstract: A casing exit joint with an easily milled and low density barrier. A casing exit joint for use in drilling a lateral wellbore outwardly from a parent wellbore includes a generally tubular window structure having a window formed through a sidewall of the structure. An outer sleeve is disposed external to the window structure, so that the sleeve overlies the window. A hardenable substance supports the sleeve against deflection toward the window. A method of drilling a lateral wellbore extending outwardly from a parent wellbore includes the steps of: providing a casing exit joint including a hardenable substance positioned in a sidewall of the casing exit joint; then installing the casing exit joint in the parent wellbore; and then cutting through the hardenable substance in order to provide access for drilling the lateral wellbore.
    Type: Grant
    Filed: May 21, 2008
    Date of Patent: June 1, 2010
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Joseph D. Parlin, William W. Dancer, Jody R. McGlothen
  • Patent number: 7725301
    Abstract: Methods and systems for estimating multi-phase fluid rates in a subterranean well (10). Stored and measured static (40) and transient (44) well conditions are used to model well conditions for comparison against additional transient data (42) relating to temperature, pressure, and flow. Multi-phase fluid rates are estimated by iteratively comparing well conditions with the model (30) for the well (10). Multi-phase fluid flow estimates may be obtained for the various liquid and gaseous fluids in the well (10) at multiple well locations (24).
    Type: Grant
    Filed: November 4, 2002
    Date of Patent: May 25, 2010
    Assignee: Welldynamics, B.V.
    Inventors: Piyush C. Shah, Kerry L. Kendrick
  • Patent number: 7708068
    Abstract: A gravel packing screen with an inflow control device and a bypass. A well screen includes a flow restricting device for restricting inward flow through the screen, and a bypass device for increasing a proportion of the inward flow which passes through the flow restricting device, the bypass device including a material which swells in response to contact between the material and fluid in a well. A method of gravel packing a well includes installing a screen in the well, the screen including a flow restricting device which restricts flow through the screen, and a bypass device for selectively permitting relatively unrestricted flow through the screen; and actuating the bypass device in response to contact between a material of the bypass device and fluid in the well, thereby increasingly restricting flow through the screen. Flow through the flow restricting device and flow through the bypass device may be in parallel.
    Type: Grant
    Filed: April 20, 2006
    Date of Patent: May 4, 2010
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Travis T. Hailey, Jr.
  • Patent number: 7703524
    Abstract: A system and method for cutting windows for lateral wellbore drilling. A method of cutting a window through a sidewall structure for drilling a lateral wellbore through the window includes the steps of: providing an internal profile in the sidewall structure; then installing the sidewall structure in a parent wellbore; and then cutting the window through the sidewall structure, the cutting step including engaging a cutting tool with the internal profile. The cutting step may include resisting lateral displacement of the cutting tool due to engagement between the cutting tool and the internal profile.
    Type: Grant
    Filed: May 21, 2008
    Date of Patent: April 27, 2010
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Joseph D. Parlin
  • Patent number: 7699101
    Abstract: A well system having a galvanic time release plug. A well system includes a flow passage and a flow blocking device which selectively obstructs flow through the passage, the device including an electrode in a galvanic cell. A flow blocking device for use in conjunction with a subterranean well includes a portion which delays an electrochemical reaction in a galvanic cell. A method of controlling fluid flow in a well system includes the steps of: obstructing flow through a passage using a flow blocking device which includes an electrode of a galvanic cell; and increasing flow through the passage by operation of the galvanic cell.
    Type: Grant
    Filed: December 7, 2006
    Date of Patent: April 20, 2010
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Michael L. Fripp, Haoyue Zhang, Luke W. Holderman, Deborah Fripp, Ashok K. Santra, Anindya Ghosh
  • Patent number: 7673683
    Abstract: A well tool having a magnetically coupled position sensor. In operation of a well tool, relative displacement is produced between members of the well tool. A magnetically coupled position sensor includes one magnet assembly attached to a member for displacement therewith and another magnet assembly movably attached to the other member and magnetically coupled to the first magnet assembly for displacement therewith. The position sensor further includes a magnetically permeable material which increases a magnetic flux density between the magnet assemblies. In another position sensor, one magnet assembly includes a magnet having a pole axis, the other magnet assembly includes another magnet having another pole axis, and the pole axes are aligned with each other.
    Type: Grant
    Filed: January 18, 2007
    Date of Patent: March 9, 2010
    Assignee: Welldynamics, Inc.
    Inventor: Robert W. Gissler