Longitudinally Movable Operator Patents (Class 166/66.7)
  • Patent number: 10309174
    Abstract: A technique provides an actuation system employed to actuate a tool, such as a downhole tool. The tool is actuated by an actuator element, e.g. a ball, which is selectively releasable from a remote location for interaction with the tool. A carrier is used to hold the actuator element at the remote location until its desired release for interaction with the tool. The carrier may comprise an electro-mechanical actuator mechanism positioned to control release of the actuator element upon receipt of an appropriate control signal.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: June 4, 2019
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Rex Burgos, Douglas A. Pipchuk, Larry J. Leising
  • Patent number: 9359890
    Abstract: A completion apparatus for completing a wellbore includes a tool to alternatively open and close a throughbore; a tool to alternatively open and close an annulus between the outer surface of the completion and the inner surface of the wellbore; a tool to alternatively provide and prevent a fluid circulation route from the throughbore of the completion to the annulus; and at least one signal receiver and processing tool capable of decoding signals received. The apparatus is run into the well bore, the throughbore is closed and the fluid pressure in the tubing is increased to pressure test the completion; the annulus is closed and a fluid circulation route is provided from the throughbore to the annulus and fluid is circulated through the production tubing into the annulus and back to surface. The fluid circulation route is then closed and the throughbore is opened.
    Type: Grant
    Filed: June 18, 2015
    Date of Patent: June 7, 2016
    Assignee: Petrowell Limited
    Inventor: Daniel Purkis
  • Patent number: 9140101
    Abstract: Certain aspects and embodiments of the present invention are directed to a subsurface safety valve disposed in a wellbore through a fluid-producing formation. The subsurface safety valve can include a closure mechanism. In some embodiments, the subsurface safety valve can be coupled with an electric submersible pump. The subsurface safety valve coupled to the electric submersible pump can be positioned in a passageway defined by a tubing string via a power cable coupled to the electric submersible pump. In some embodiments, the subsurface safety valve can include at least one terminal. The at least one terminal can form an electrical connection between the subsurface safety valve and the electric submersible pump. The subsurface safety valve can receive power from the electric submersible pump via the electrical connection.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: September 22, 2015
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Bruce Edward Scott, James Dan Vick, Jr., Jimmie Robert Williamson, Jr.
  • Patent number: 8978757
    Abstract: A remote actuation tool equipped with an intermediate volumetric mechanism for enhanced tool durability in high pressure differential downhole environments. Valve segments of the tool are actuated by power available due to a pressure differential between atmospheric and hydrostatic chambers of the tool. Yet, the intermediate volumetric mechanism, whether in the form of a discrete chamber or a hydraulic line system, minimizes stresses of the differential pressure on tool hydraulics. Thus, failure rates are substantially reduced. So, for example, the tool may be reliably employed in downhole environments which present differential pressures in excess of about 30,000 PSI.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: March 17, 2015
    Assignee: Schlumberger Technology Corporation
    Inventors: Wei Wang, Colin Longfield, David Merlau, Sebastian Ives, Brad Bailey, Belinda D. Manning
  • Publication number: 20140338922
    Abstract: A production sleeve assembly for use in a wellbore comprises a wellbore tubular, a plurality of fluid pathways configured to provide fluid communication within the downhole component, a plurality of electronic actuators configured to selectively provide fluid communication through one or more of the plurality of fluid pathways, and at least one sensor coupled to the plurality of electronic actuators. One or more of the plurality of electronic actuators are configured to selectively actuate to allow or prevent fluid flow through a corresponding fluid pathway of the plurality of fluid pathways in response to the at least one sensor receiving a suitable signal.
    Type: Application
    Filed: February 8, 2013
    Publication date: November 20, 2014
    Inventors: Jean Marc Lopez, Luke William Holderman, Michael L. Fripp
  • Patent number: 8866425
    Abstract: Complete drive system, called motor-drive unit, for use in remote locations with limited radial space like downhole, narrow tunnels, pipelines and other applications with similar conditions. Given the spatial limitations the unit must have elongated shape. It includes a number of motors connected mechanically in series and a lower number of inverters, driving groups of the motors so that load is equally distributed along axis of the unit. Motors within each group can be electrically connected in series or in parallel. The motor-drive unit is supposed to be fed by DC voltage via a cable with length up to several km; therefore, it includes a buck converter for stabilization of voltage inside the unit and a power-line communication module to be controllable from the surface.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: October 21, 2014
    Assignee: SmartMotor AS
    Inventors: Richard Lund, Alexey Matveev, Roy Nilsen, Sigurd Övrebö
  • Patent number: 8857785
    Abstract: A thermo-hydraulically actuated valve including a housing; a closure member capable of preventing and permitting fluid flow through the housing. An actuation fluid chamber disposed at the housing and sealed from an external environment. A motive force transmitter in force transmissive communication with the closure member. The transmitter being in fluid communication with the actuation fluid chamber; and a heating element in thermal communication with the actuation fluid chamber. The valve being devoid of a dynamic seal between an area of the valve to be contacted by a managed fluid within the valve and an environment outside of the valve.
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: October 14, 2014
    Assignee: Baker Hughes Incorporated
    Inventor: Terry R. Bussear
  • Patent number: 8640779
    Abstract: A system and method for transmitting mud pulse signals in a downhole environment may utilize a shape memory alloy. In one embodiment, a mud pulser system includes a valve; a wire comprising shape memory alloy (SMA), and operable to have a first shape at a first temperature and a second shape at a second temperature; a thermal energy source to heat the wire from the first temperature to the second temperature; and a valve poppet coupled to the wire, wherein the valve poppet is extended to close the valve when the wire is in the first shape and wherein the valve poppet is retracted to open the valve when the wire is in the second shape.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: February 4, 2014
    Assignee: Multishot LLC
    Inventors: Allen Young, James Frederick Huber
  • Patent number: 8627883
    Abstract: A linear actuation apparatus for controlling fluid flow comprises a tubular manifold for conducting fluid through a portion, and a shaft supported for reciprocal axial movement within the manifold. A valve seat is supported within the manifold in substantial alignment with the shaft, and a valve closure element is carried by the shaft for reciprocal axial movement between a closed and an opened position. A magnetic element is also carried by the shaft for reciprocal axial movement therewith. A pair of springs are carried on opposing sides of the magnetic element wherein one spring is compressed and applies an axial force to the shaft when the shaft is moved from a neutral position. A compound magnet, carried by the manifold, applies an axial force to the magnetic element that together with the axial force of the spring(s) and fluid pressure control movement of the shaft and the valve closure.
    Type: Grant
    Filed: June 17, 2008
    Date of Patent: January 14, 2014
    Assignee: Schlumberger Technology Corporation
    Inventor: Edward Richards
  • Patent number: 8555956
    Abstract: A tool that is usable with a well includes a tool operator and a linear induction motor, which actuates the tool operator.
    Type: Grant
    Filed: December 18, 2006
    Date of Patent: October 15, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: Anthony F. Veneruso, David McCalvin, Dwayne May, Fabien Cens
  • Patent number: 8490687
    Abstract: A method of operating a valve can include installing an electrical actuator in a flow passage extending longitudinally through the valve, and operating a closure assembly in response to electrical power being supplied to the electrical actuator. An outer safety valve can include a closure assembly which selectively permits and prevents flow through a longitudinal flow passage, and at least one electrical connector which electrically connects to an insert safety valve positioned in the flow passage. A method of operating an outer safety valve in a subterranean well can include installing an insert safety valve in the safety valve, and operating the insert safety valve with electrical current flowing from the safety valve to the insert safety valve.
    Type: Grant
    Filed: August 2, 2011
    Date of Patent: July 23, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Bruce E. Scott, John J. Goiffon
  • Patent number: 8464799
    Abstract: Surface controlled subsurface control valves for use in wells and methods of controlling the same. In one embodiment, a valve includes a valve body, a bore closure assembly, a mechanical linkage, a drive assembly, and a control assembly. The valve body defines a bore for fluid to flow through when the bore closure assembly is in an open position. When the bore closure assembly is in its closed position, the bore closure assembly prevents fluid from flowing through the bore. The mechanical linkage is operatively connected to the bore closure assembly and to the drive assembly. The primary control assembly determines a force to apply to the mechanical linkage based on a present operating condition of the valve and causes the drive assembly to apply the determined force to the mechanical linkage. As a result, the mechanical linkage drives the bore closure assembly.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: June 18, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Bruce Edward Scott, John Goiffon, Jimmie Robert Williamson, Jr.
  • Patent number: 8398050
    Abstract: An actuator and counterbalance system including a nonmobile carrier; a mobile carrier, mobile relative to the non mobile carrier; and a counterbalance system in operable communication with the mobile carrier and configured to counterbalance less than 100 percent of a return force of a tool actuated by the actuator and method.
    Type: Grant
    Filed: August 13, 2009
    Date of Patent: March 19, 2013
    Assignee: Baker Hughes Incorporated
    Inventors: Gary Lake, Priyesh Ranjan, Kenneth Wilson, Michael Rainone, Phillip Grisham, Samuel Sackett
  • Patent number: 8393386
    Abstract: A downhole valve apparatus including a force transmitter configured to move in an axial direction and a valve actuator configured to move in an axial direction. The valve actuator is independently movable relative to the force transmitter and physically isolated from the force transmitter. A first magnetic assembly is disposed at the force transmitter. A second magnetic assembly is disposed at the valve actuator. The first and second magnetic assemblies are configured to repel one another and cause the force transmitter to move the valve actuator when the force transmitter is moved toward the valve actuator.
    Type: Grant
    Filed: November 23, 2009
    Date of Patent: March 12, 2013
    Assignee: Baker Hughes Incorporated
    Inventors: Gary B. Lake, John E. Burris, David Z. Anderson, Brock A. Peoples, Robert G. McDaniel, Charles M. Tompkins, Grant R. Thompson
  • Patent number: 8344904
    Abstract: A method of transmitting power and/or data between downhole equipment and a surface through a circuit including an alternating current (AC) powered motor and its associated power cable for powering the downhole equipment is disclosed, where the data is transmitted at frequencies outside the normal operating ranges that are thought acceptable. Associated circuitry and apparatus for performing the method are disclosed.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: January 1, 2013
    Assignee: Zenith Oilfield Technology Limited
    Inventors: Sandy Skinner, Michael Manning
  • Patent number: 8267167
    Abstract: A downhole valve apparatus including a force transmitter configured to move in an axial direction and a valve actuator configured to move in an axial direction. The valve actuator is independently movable relative to the force transmitter and physically isolated from the force transmitter. A first magnetic assembly is disposed at the force transmitter. A second magnetic assembly is disposed at the valve actuator. The first and second magnetic assemblies are configured to repel one another and cause the force transmitter to move the valve actuator when the force transmitter is moved toward the valve actuator.
    Type: Grant
    Filed: November 23, 2009
    Date of Patent: September 18, 2012
    Assignee: Baker Hughes Incorporated
    Inventors: Gary B. Lake, David Z. Anderson, Brock A. Peoples, Tyler Roberts
  • Patent number: 8220534
    Abstract: The invention relates to a safety device for an oil well and to the associated safety installation. The inventive device comprises a valve housing (40) which defines a fluid flow passage (52). The aforementioned housing (40) comprises a valve (48) which is used to seal the passage and which can move between an open position and a closed position and means for permanently biasing the valve towards the closed position thereof. The housing (40) also comprises releasable means (54) for connecting same to a working line with tubing that is intended to move the housing (40) in the conduit. In addition, the device comprises retractable means (42) for supporting the valve (58) in the open position and hydraulic means (44, 46) for actuating the support means (42) in order to activate same upon reception of a valve open control signal. The aforementioned support means (42) and actuation means (44, 46) are solidly connected to the housing (40) such that they can be moved simultaneously under the control of the line.
    Type: Grant
    Filed: August 28, 2006
    Date of Patent: July 17, 2012
    Assignee: Geoservices Equipements
    Inventors: François Millet, Joseph Girardi, Christophe Michaud
  • Patent number: 8210258
    Abstract: A method of producing fluids from a wellbore that has therein n adjustable flow control device for controlling flow of fluid between a formation and the wellbore may include: providing a tool having a sensor configured to provide measurements relating to a downhole property of interest, wherein the tool is configured to adjust flow from the flow control device; conveying the tool into the wellbore; determining the property of interest using the tool; and adjusting the flow through the flow control device with the tool at least in part in response to the determined parameter of interest. An apparatus for controlling fluid flow between a formation and a wellbore, according to one embodiment may include: a tool configured to be conveyed into a wellbore that contains at least one sensor for estimating a property of interest downhole and a latching device configured to couple to a flow control device in the wellbore to alter flow of the fluid through the flow control device.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: July 3, 2012
    Assignee: Baker Hughes Incorporated
    Inventors: Edward J. O'Malley, Elmer R. Peterson, Martin P. Coronado, Luis A. Garcia
  • Patent number: 8176975
    Abstract: A tubing pressure insensitive actuator system includes a housing having a bore therein. A force transmitter is sealingly moveable within the bore, the force transmitter defining with the bore two fluid chambers. One of the fluid chambers is at each longitudinal end of the force transmitter. At least two seals are sealingly positioned between the housing and the force transmitter, with one of the seals isolating one end of the force transmitter from tubing pressure and another of the seals isolating another end of the force transmitter from tubing pressure. A method is also included.
    Type: Grant
    Filed: April 7, 2008
    Date of Patent: May 15, 2012
    Assignee: Baker Hughes Incorporated
    Inventors: Gary B. Lake, David Z. Anderson, Darren E. Bane, Aaron T. Jackson
  • Patent number: 8118098
    Abstract: A technique is provided to facilitate fluid flow and pressure control in a well with an interventionless flow valve system. The valve system is coupled to a well component string deployed downhole in a wellbore. The valve system controls flow and pressure between an interior and exterior of the string and comprises a valve controlled by an activation device. The activation device is responsive to a unique pressure and time signal transmitted downhole.
    Type: Grant
    Filed: May 23, 2006
    Date of Patent: February 21, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Joe C. Hromas, Larry Grigar
  • Patent number: 8016026
    Abstract: An apparatus, method, and system for actuating a wellbore tool includes a body having a chamber in which a movable member is disposed. The movable member may connect to a selected wellbore tool. Within the chamber is a controllable fluid that substantially prevents relative movement between the body and the movable member when exposed to an applied magnetic field. A generator applies the magnetic field to the fluid and may change the applied magnetic field in response to a first control signal to release the movable member from the body. A driver displaces the movable member relative to the body once the movable member is released from the body.
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: September 13, 2011
    Assignee: Baker Hughes Incorporated
    Inventor: Paul Joseph
  • Patent number: 7971652
    Abstract: A device for use in actuating a valve to control the flow of fluids through a flow tube comprises a stationary ring surrounding the flow tube, the ring having an inner diameter greater than an outer diameter of the flow tube. An interior of the ring and an exterior of the flow tube have complementary screw threads. At least three actuators are equally circumferentially spaced along an exterior of the ring. When activated an actuator induces a screw thread on the interior of the ring to engage a screw thread on the exterior of the flow tube such that the flow tube is moved in an axial direction relative to the ring.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: July 5, 2011
    Assignee: Chevron U.S.A. Inc.
    Inventor: Baha Tulu Tanju
  • Patent number: 7971651
    Abstract: An actuator for use in actuating a valve to control the flow of fluids through the valve, the valve having a valve member movable between positions opening and closing the valve. The actuator comprises one or more shape memory alloy elements each being transformable from a martensitic to an austenitic state by applying heat energy to achieve an austenitic transformation. The one or more shape memory alloy elements are connected to the valve member such that austenitic transformation of the one or more shape memory alloy elements induces movement of the valve member from its closing position to its opening position.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: July 5, 2011
    Assignee: Chevron U.S.A. Inc.
    Inventors: Baha Tulu Tanju, Peter J. Worman
  • Patent number: 7967074
    Abstract: Methods and devices for utilizing an electrically-actuated wireline insert safety valve (WLSV) within a wellbore. Power is delivered to an electrically actuated WLSV to actuate the WLSV via inductive charging and without the use of wired contact.
    Type: Grant
    Filed: July 29, 2008
    Date of Patent: June 28, 2011
    Assignee: Baker Hughes Incorporated
    Inventors: Gary B. Lake, Richard Patterson, Thad Andrews
  • Publication number: 20110120728
    Abstract: An apparatus for operating a downhole valve includes: a force transmitter configured to move in an axial direction and including at least one first magnetic assembly; a housing including at least one axially elongated passageway formed therein, the at least one first magnetic assembly configured to be disposed within the at least one axially elongated passageway; and a valve actuator configured to move in an axial direction and including at least one second magnetic assembly disposed at the valve actuator, the first and second magnetic assemblies configured to interact so that movement of the force transmitter in the axial direction causes movement of the valve actuator in the axial direction.
    Type: Application
    Filed: November 23, 2009
    Publication date: May 26, 2011
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Gary B. Lake, David Z. Anderson, Brock A. Peoples, Tyler Roberts
  • Publication number: 20110120727
    Abstract: A downhole valve apparatus includes: a force transmitter configured to move in an axial direction; a valve actuator configured to move in an axial direction, the valve actuator independently movable relative to the force transmitter and physically isolated from the force transmitter; a first magnetic assembly disposed at the force transmitter; and a second magnetic assembly disposed at the valve actuator, the first and second magnetic assemblies configured to repel one another and cause the force transmitter to move the valve actuator when the force transmitter is moved toward the valve actuator.
    Type: Application
    Filed: November 23, 2009
    Publication date: May 26, 2011
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Gary B. Lake, John E. Burris, David Z. Anderson, Brock A. Peoples, Robert G. McDaniel, Charles M. Tompkins, Grant R. Thompson
  • Publication number: 20110067876
    Abstract: A chemical injection system for controlling injection of an injection fluid from an injection fluid supply at a surface location into a production tubing assembly having an upper flow path, a first flow zone, and a second flow zone. The chemical injection system comprises a first fluid injection line configured to inject the injection fluid into the first flow zone and a second fluid injection line configured to inject the injection fluid into the second flow zone. A main fluid supply line is configured to fluidly connect both the first fluid injection line and the second fluid injection line to the injection fluid supply.
    Type: Application
    Filed: September 24, 2009
    Publication date: March 24, 2011
    Inventors: Dewayne Turner, Richard Ross
  • Patent number: 7891428
    Abstract: A safety valve for use in well bore operations, for example, in cooperation with a progressive cavity pump or rodpump. One version of a safety valve (1) is designed for use with upper and lower conduits in the form of upper and lower pump rod strings (16, 18) located in wellbore production tubing (50). The safety valve comprises a housing (2) having a longitudinal bore (3) extending therethrough; a coupling member (14) for coupling the upper rod string to the lower rod string, the coupling member sealably mounted within the longitudinal bore; an annular flow passage (8) bypassing the coupling member; and a valve sleeve (23) located in the annular flow passage. In use, the valve sleeve is utilised to control flow of fluid through the flow passage bypassing the coupling member.
    Type: Grant
    Filed: November 2, 2005
    Date of Patent: February 22, 2011
    Assignee: Caledyne Limited
    Inventors: David Glen Martin, Roland Marcel Van Dort
  • Patent number: 7891430
    Abstract: An apparatus for controlling a flow of fluid in a well includes a flow control device and a generator that generates electrical energy in response to a flow of an electrically conductive fluid. The flow control device may include an actuator receiving electrical energy from the generator, and a valve operably coupled to the actuator. The actuator may be configured to operate after a preset value for induced voltage is generated by the generator. The generator may use a pair of electrodes positioned along a flow path of the electrically conductive fluid to generate electrical energy. In one arrangement, one or more elements positioned proximate to the electrodes generate a magnetic field along the flow path of the electrically conductive fluid that causes the electrodes to generate a voltage. In another arrangement, the electrodes create an electrochemical potential in response to contact with the electrically conductive fluid.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: February 22, 2011
    Assignee: Baker Hughes Incorporated
    Inventor: Darrin L. Willauer
  • Publication number: 20110000660
    Abstract: A modular valve body includes, a tubular defining an inner bore extending longitudinally therethrough and the tubular has standardized fittings at both ends that are connectable to a drillstring or tubing. The body further has a first surface disposed at the tubular that is in fluidic communication with the inner bore by at least one port, the first surface is receptive to any one of a plurality of selectable modular valves mountable thereat, and a second surface disposed at the tubular is receptive to a circuit configurable to control the selected one of the plurality of selectable modular valves.
    Type: Application
    Filed: July 2, 2009
    Publication date: January 6, 2011
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Paul Joseph, John R. Abarca, Luis E. Mendez
  • Patent number: 7836950
    Abstract: Methods and apparatus are disclosed for conveying an electrically energized hydraulic pump into a wellbore surrounded by steel casing and thereafter using that hydraulic pump to pump oil, water and gas to the surface of the earth. The apparatus may be used as a well tractor conveyance system to service a perforated steel cased wellbore located in a geological formation that incorporates means to prevent any reverse fluid flow into the geological formation through any perforations in the steel cased wellbore during movement within the wellbore of the tractor conveyance means.
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: November 23, 2010
    Assignee: Weatherford/Lamb, Inc.
    Inventors: William Banning Vail, III, James E. Chitwood
  • Patent number: 7828052
    Abstract: A well tool for applying a pulling or a pushing force to an object in an interior of a well bore comprising: a) an inner member comprising a first elongated member, a second elongated member and an actuation means axially interconnecting the first elongated member and the second elongated member; b) an outer elongated member longitudinally moveably engaged with the inner member; c) a first seal defined between the first elongated member and the outer elongated member; d) a second seal defined between the second elongated member and the outer elongated member; e) a first piston area defined at a first end portion of the outer elongated member between an outer diameter of the outer elongated member and a sealed outer diameter of the first elongated member; f) a second piston area defined at a second end portion of the outer elongated member between the outer diameter of the outer elongated member and a sealed outer diameter of the second elongated member; and g) a sealed chamber defined between the first seal a
    Type: Grant
    Filed: July 7, 2006
    Date of Patent: November 9, 2010
    Assignee: Star Oil Tools, Inc.
    Inventor: Marcel Obrejanu
  • Patent number: 7802627
    Abstract: A remotely-operated selective fracing system and valve. The valve comprises a casing with at least one casing hole; an inner sleeve nested within the casing and having at least one sleeve hole alignable with the at least one casing hole; actuator means engagable with the inner sleeve for moving the inner sleeve relative to the casing to selectively align the at least one sleeve hole with the at least one casing hole; and receiver means electrically connected to the actuator means and having a sensor for detecting a seismic or electromagnetic signal generated by a remote source. The system further includes source means for generating an acoustical signal receivable by the receiver means.
    Type: Grant
    Filed: January 25, 2007
    Date of Patent: September 28, 2010
    Assignee: Summit Downhole Dynamics, Ltd
    Inventors: Raymond A. Hofman, Gary L. Ragsdale, Stephen W. Cook, Paul A. Avery
  • 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
  • Publication number: 20100126711
    Abstract: A modulator is disclosed for creating a pressure pulse in a fluid-filled well. The modulator comprises a tool body on which a plurality of extendable arms are mounted. The arms may be retracted into a stowed position substantially adjacent the tool body, or may be extended to meet the wall of the borehole. The arms are preferably resilient bowsprings that may be flexed outwards from the tool by means of an actuator pushing on at least one end of the springs. A flexible valve sleeve or bag is suspended between the arms and cooperates with a valve mounted adjacent the sleeve on the tool body. The valve sleeve creates a fluid-flow path through the valve, and in operation, the valve closes one end of the valve sleeve to create the pressure pulse. Sealing of the valve sleeve against the wall of the well is a result of the fluid pressure inflating the sleeve against the well wall. As a result, sealing takes place over an extended area of the bag and is dynamically responsive to changes in fluid flow or pressure.
    Type: Application
    Filed: November 18, 2009
    Publication date: May 27, 2010
    Inventors: John BUSS, Charles William Donkin, Ian Hitchcock, William Peter Stuart Bruges, Roy Mowatt, James Ratcliffe, Anthony Webb
  • Publication number: 20100051256
    Abstract: In one aspect of the present invention, a downhole tool string component has a first and second threaded end on a mandrel, the first threaded end attached to a first sleeve and the second threaded end attached to a second sleeve. An intermediate sleeve assembly is disposed circumferentially around the mandrel and intermediate the first and second threaded ends, and the intermediate sleeve assembly is primarily isolated from stress of the first or second sleeve.
    Type: Application
    Filed: November 11, 2009
    Publication date: March 4, 2010
    Inventors: David R. Hall, Nathan Nelson, Scott Woolston, Scott Dahlgren, Jonathan Marshall
  • Publication number: 20090314485
    Abstract: The invention relates to a safety device for an oil well and to the associated safety installation. The inventive device comprises a valve housing (40) which defines a fluid flow passage (52). The aforementioned housing (40) comprises a valve (48) which is used to seal the passage and which can move between an open position and a closed position and means for permanently biasing the valve towards the closed position thereof. The housing (40) also comprises releasable means (54) for connecting same to a working line with tubing that is intended to move the housing (40) in the conduit. In addition, the device comprises retractable means (42) for supporting the valve (58) in the open position and hydraulic means (44, 46) for actuating the support means (42) in order to activate same upon reception of a valve open control signal. The aforementioned support means (42) and actuation means (44, 46) are solidly connected to the housing (40) such that they can be moved simultaneously under the control of the line.
    Type: Application
    Filed: August 28, 2006
    Publication date: December 24, 2009
    Inventors: Francois Millet, Joseph Girardi, Christophe Michaud
  • Patent number: 7617874
    Abstract: A valve control system for a wellbore includes a fiber composite actuator functionally coupled to a valve operating member and means for controllably charging an interior of the actuator with fluid under pressure. A valve for a wellbore includes a valve stem and a valve seat associated with a valve body. The valve stem and valve seat are configured to enable fluid flow from an inlet port in the valve body to an outlet port in the valve body when the stem is moved from the seat. An axial contraction fiber composite actuator is functionally coupled to the valve stem. The valve includes means for controllably charging an interior of the actuator with fluid under pressure.
    Type: Grant
    Filed: June 13, 2007
    Date of Patent: November 17, 2009
    Assignee: Schlumberger Technology Corporation
    Inventor: Murat Ocalan
  • Patent number: 7604062
    Abstract: Disclosed herein is a downhole tool actuation arrangement. The arrangement includes a housing having a chamber, at least one piston in operable communication with the chamber and at least one electrode exposed to the chamber. The electrodes are receptive to a power source. Further disclosed is a method for actuating a downhole tool. The method includes discharging a voltage source through at least one electrode to cause a pressure wave in a fluid surrounding the at least one electrode and moving at least one piston in response to the pressure wave.
    Type: Grant
    Filed: October 2, 2007
    Date of Patent: October 20, 2009
    Assignee: Baker Hughes Incorporated
    Inventor: Douglas J. Murray
  • Publication number: 20090229814
    Abstract: Disclosed herein is a downhole tool. The downhole tool includes, a tubular, a tooth profile on the tubular, at least one first actuatable latch complementary to the tooth profile, at least one second actuatable latch complementary to the tooth profile that prevents movement of the tubular when actuated, and at least one actuator in operable communication with the at least one first actuatable latch such that actuation of the at least one actuator while the at least one first actuatable latch is actuated and the at least one second actuatable latch is nonactuated causes movement of the tubular.
    Type: Application
    Filed: March 17, 2008
    Publication date: September 17, 2009
    Applicant: BAKER HUGHES INCORPORATED
    Inventor: Walter S. Going, III
  • Patent number: 7559361
    Abstract: A well tool for applying a pulling or a pushing force to an object in an interior of a well bore comprising: a) a inner member comprising an first elongated member, a second elongated member and an actuation means axially interconnecting the first elongated member and the second elongated member; b) an outer elongated member longitudinally moveably engaged with the inner member; c) a first seal defined between the first elongated member and the outer elongated member; d) a second seal defined between the second elongated member and the outer elongated member; e) a first piston area defined at a first end portion of the outer elongated member between an outer diameter of the outer elongated member and a sealed outer diameter of the first elongated member; f) a second piston area defined at a second end portion of the outer elongated member between the outer diameter of the outer elongated member and a sealed outer diameter of the second elongated member; and g) a sealed chamber defined between the first seal a
    Type: Grant
    Filed: July 14, 2005
    Date of Patent: July 14, 2009
    Assignee: Star Oil Tools, Inc.
    Inventor: Marcel Obrejanu
  • Publication number: 20090139727
    Abstract: An actuator for use in actuating a valve to control the flow of fluids through the valve, the valve having a valve member movable between positions opening and closing the valve. The actuator comprises one or more shape memory alloy elements each being transformable from a martensitic to an austenitic state by applying heat energy to achieve an austenitic transformation. The one or more shape memory alloy elements are connected to the valve member such that austenitic transformation of the one or more shape memory alloy elements induces movement of the valve member from its closing position to its opening position.
    Type: Application
    Filed: October 31, 2008
    Publication date: June 4, 2009
    Applicant: CHEVRON U.S.A. INC.
    Inventors: Baha Tulu TANJU, Peter J. Worman
  • Patent number: 7503398
    Abstract: The present invention relates to apparatus and methods for remotely actuating a downhole tool. In one aspect, the present invention provides an apparatus for activating a downhole tool in a wellbore, the downhole tool having an actuated and unactuated positions. The apparatus includes an actuator for operating the downhole tool between the actuated and unactuated positions; a controller for activating the actuator; and a sensor for detecting a condition in the wellbore, wherein the detected condition is transmitted to the controller, thereby causing the actuator to operate the downhole tool. In one embodiment, conditions in the wellbore are generated at the surface, which is later detected downhole. These conditions include changes in pressure, temperature, vibration, or flow rate. In another embodiment, a fiber optic signal may be transmitted downhole to the sensor. In another embodiment still, a radio frequency tag is dropped into the wellbore for detection by the sensor.
    Type: Grant
    Filed: June 12, 2007
    Date of Patent: March 17, 2009
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Michael LoGiudice, R. L. Colvard
  • Patent number: 7487829
    Abstract: A wellbore valve includes a valve operator arranged to move axially along an interior of the wellbore, the valve operator arranged to operate a valve. A valve actuator is disposed proximate the valve operator. The valve actuator is arranged to move from one longitudinal position to another. A linear magnetic gear is coupled at an input element thereof to the valve actuator. The gear is coupled at an output element thereof to the valve operator such that motion of the valve actuator is transferred to the valve operator.
    Type: Grant
    Filed: June 14, 2007
    Date of Patent: February 10, 2009
    Assignee: Dexter Magnetic Technologies, Inc.
    Inventors: William J. McDonald, Timothy F. Price
  • Patent number: 7409987
    Abstract: A device for connection of a wireline (2) provided with a conductor (10), the wireline (2) being intended particularly for a wireline tool (4), wherein the wireline is provided with a wireline connector (6) in which each wireline strand layer (12, 14) is biased and clamped between an inner sleeve (16, 26) and an outer sleeve (18, 28), and wherein the tensile load of the wireline (2) is transmitted to a fastening element (38) via the outer sleeves (18, 28), the wireline connector (6) being connected to the wireline tool (4) by means of a releasable disconnection device (8).
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: August 12, 2008
    Assignee: Smedvig Offshore AS
    Inventor: Ole Gunnar Fjelde
  • Patent number: 7392839
    Abstract: A single fluid line sliding sleeve downhole tool assembly having a top sub engaging a top connector which connects to a body that engages a middle connector which is secured to a port housing, wherein the port housing engages a lower connector and the lower connector engages a bottom sub.
    Type: Grant
    Filed: April 30, 2007
    Date of Patent: July 1, 2008
    Assignee: Petroquip Energy Services, LLP
    Inventors: Charles David Wintill, Rodney Wayne Long, William Ryle Darnell, William John Darnell, Michael Chad Darby
  • Patent number: 7373972
    Abstract: A piloting actuator valve controls flow in a well. The piloting actuator valve is combined with a downhole completion and utilizes a pilot valve to control actuation of a main valve. A controllable actuator is coupled to the pilot valve and enables selective control over the pilot valve which, in turn, controls the state of the main valve.
    Type: Grant
    Filed: February 2, 2005
    Date of Patent: May 20, 2008
    Inventor: Murat Ocalan
  • Patent number: 7367405
    Abstract: Disclosed herein is a downhole tool actuation arrangement. The arrangement includes a housing having a chamber, at least one piston in operable communication with the chamber and at least one electrode exposed to the chamber. The electrodes are receptive to a power source. Further disclosed is a method for actuating a downhole tool. The method includes discharging a voltage source through at least one electrode to cause a pressure wave in a fluid surrounding the at least one electrode and moving at least one piston in response to the pressure wave.
    Type: Grant
    Filed: July 1, 2005
    Date of Patent: May 6, 2008
    Assignee: Baker Hughes Incorporated
    Inventor: Douglas J. Murray
  • Publication number: 20080083533
    Abstract: A diagnostic sleeve shifting tool. The tool may include a diagnostic implement for measuring downhole conditions in a well such as flow-rate, pressure and temperature. Where the well includes a slidable or shiftable sleeve, the tool may be employed to slide such a sleeve for controlling communication between the well and an underground production region adjacent the location of the well. In this manner real time diagnostic assessment may occur at the well location in conjunction with means to affect the sleeve position. Thus, the need to run additional subsequent procedures with additional tools for affecting the sleeve position may be eliminated. As a result, substantial time and expense may be saved in conducting such well procedures.
    Type: Application
    Filed: October 6, 2006
    Publication date: April 10, 2008
    Inventors: Bradley P. Malone, Jason Swaren, Thoros Heroian
  • Patent number: 7325606
    Abstract: Methods and apparatus are disclosed for conveying an electrically energized progressing cavity pump into a wellbore surrounded by steel casing and thereafter using that progressing cavity pump to pump oil, water and gas to the surface of the earth. The progressing cavity pump self-powers itself into the wellbore by pumping fluid from one side to another side of a lateral hydraulic seal and is thereafter used to provide artificial lift which is particularly useful in extreme-reach lateral wellbores. The apparatus may be suspended on coiled tubing, on any umbilical means, or on a wireline, and may also be used as a conveyance system to convey completion devices into a well. The progressing cavity pump is not subject to gas lock in highly deviated, partially gas-filled wells, and may be used to prevent any reverse fluid flow into formation during deployment in the well.
    Type: Grant
    Filed: July 22, 2006
    Date of Patent: February 5, 2008
    Assignee: Weatherford/Lamb, Inc.
    Inventors: William Banning Vail, III, James E. Chitwood