With Means To Anchor Prime Movers Support To Bore Wall Patents (Class 175/97)
  • Patent number: 9187959
    Abstract: A bottom hole assembly (BHA) coupled to a drill string includes a steering device, one or more controllers, and a hole enlargement device that selectively enlarges the diameter of the wellbore formed by the drill bit. In an automated drilling mode, the controller controls drilling direction by issuing instructions to the steering device. In one arrangement, the hole enlargement device is integrated into a shaft of a drilling motor that rotates the drill bit. The hole enlargement device includes an actuation unit and an electronics package that cooperate to translate extendable cutting elements between a radially extended position and a radially retracted position. The electronics package may be responsive to a signal that is transmitted from a downhole and/or a surface location. The hole enlargement device may also include one or more position sensors that transmit a position signal indicative of a radial position of the cutting elements.
    Type: Grant
    Filed: March 2, 2007
    Date of Patent: November 17, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: Joachim Treviranus, Carsten Freyer, Hans-Robert Oppelaar
  • Patent number: 9080391
    Abstract: A downhole drilling tool includes a tubular housing having a first longitudinal end and a second longitudinal end, and a stator disposed in the tubular housing, said stator defining an internal cavity passing there through. The stator includes at least a first protective electrically insulated layer, a second protective electrically insulated layer, and an electrically conductive layer disposed between the first and second protective layers. The electrically conductive layer coupled at a first end to a first electrical device and coupled at a second end to a second electrical device. A rotor is operatively positioned in the internal cavity to cooperate the stator.
    Type: Grant
    Filed: May 8, 2013
    Date of Patent: July 14, 2015
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Victor Gawski, John Kenneth Snyder
  • Patent number: 8807243
    Abstract: Systems and methods for reducing the amount of torque transferred to the Bottom Hole Assembly and the drill string during drilling operations are disclosed. The drill string includes an optionally non-rotatable portion. A rotational hold down system is positioned at a first position on the drill string where it is not rotationally coupled to the drill string. The rotational hold down system is then moved to a second position on the drill string where it is rotationally coupled to the optionally non-rotatable portion of the drill string. In the second position, one or more bars on the rotational hold down system substantially prevent rotation of the optionally non-rotatable portion of the drill string.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: August 19, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jim B. Surjaatmadja, Loyd East
  • Patent number: 8336642
    Abstract: A drilling system for drilling a borehole in an underground formation, comprises a rotary drill bit, a drilling drive mechanism that is capable of applying both rotating the drill bit and applying an axial force to the drill bit, and a control system that is capable of controlling the drive mechanism so as to control rotation of the drill bit and the axial force applied to the drill bit in order to control the depth of cut created by the drill bit when drilling through the formation. A method of drilling a borehole in an underground formation with a rotary drill bit, comprises applying rotation and an axial force to the drill bit and controlling the rotation and axial force so as to control the depth of cut created by the drill bit when drilling through the formation.
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: December 25, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Eric Lavrut, Pierre-Jérôme Acquaviva, Henri Denoix
  • Patent number: 8327953
    Abstract: A drilling tool (1) for drilling downhole, comprising a drilling head (2) in connection with a first portion (18) of the drilling tool, a driving unit (9) for driving the drilling head and the first portion forward in a longitudinal movement while drilling, and a feed control (19) for controlling the longitudinal movement of the drilling head.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: December 11, 2012
    Assignee: Welltec A/S
    Inventors: Jørgen Hallundbaek, Thomas Sune Andersen
  • Patent number: 8215400
    Abstract: A system for opening a window in a casing string (42) positioned in a wellbore (32). The system includes a hydraulic pressure intensifier (116) having a housing and a piston assembly with a differential piston area. The piston assembly is longitudinally shiftable relative to the housing and is initially secured relative thereto to prevent longitudinal movement therebetween. An anchor assembly (114) is operable to longitudinally secure the hydraulic pressure intensifier (116) within the casing string (42). A window opening tool (118) operably associated with the hydraulic pressure intensifier (116) is operably engagable with the casing string (42) such that when the anchor assembly (114) is longitudinally secured within the casing string (42) and the piston assembly is unsecured relative to the housing under hydrostatic pressure, longitudinal movement of the piston assembly transmits a force to the window opening tool (118), thereby opening the window in the casing string (42).
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: July 10, 2012
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Thomas Owen Roane, Stuart Alexander Telfer
  • Patent number: 8191652
    Abstract: A drilling system, comprising a non-rotating conveyance system; a tool connected to the non-rotating conveyance system and including anchors by which the tool can be anchored in position when located in a borehole; a drill bit connected to the tool; a motor for rotating the drill bit; and a directional control system interposed between the tool and the drill bit; wherein, in use, whit the drilling system located in a borehole, the directional control system can be operates so as to displace the drill bit away from the axis of the borehole.
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: June 5, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Spyro Kotsonis, Cedric Perrin, Eric Lavrut, Henri Denoix
  • Patent number: 8028766
    Abstract: An electrically powered and controlled tractor system includes one or more electric gripper assemblies and one or more electric power train assemblies. Power and control signals for the gripper assemblies and power train assemblies can be delivered from a ground surface via a wireline. The gripper assembly employs a motor-activated lead screw and nut combination to expand passage-gripping elements, preferably by pushing the gripping elements radially outward from locations between opposing ends of the gripping elements. A failsafe mechanism can retract the gripping elements during a power interruption. The power train assembly employs a motor-activated lead screw and nut combination to expand and contract two or more telescoping members. The tractor system can include multiple tractor units that each includes one gripper assembly and one power train assembly. A tractor can include one power train assembly and two gripper assemblies.
    Type: Grant
    Filed: July 20, 2010
    Date of Patent: October 4, 2011
    Assignee: WWT International, Inc.
    Inventor: Norman Bruce Moore
  • Patent number: 7770667
    Abstract: An electrically powered and controlled tractor system includes one or more electric gripper assemblies and one or more electric power train assemblies. Power and control signals for the gripper assemblies and power train assemblies can be delivered from a ground surface via a wireline. The gripper assembly employs a motor-activated lead screw and nut combination to expand passage-gripping elements, preferably by pushing the gripping elements radially outward from locations between opposing ends of the gripping elements. A failsafe mechanism can retract the gripping elements during a power interruption. The power train assembly employs a motor-activated lead screw and nut combination to expand and contract two ore more telescoping members. The tractor system can include multiple tractor units that each includes one gripper assembly and one power train assembly. A tractor can include one power train assembly and two gripper assemblies.
    Type: Grant
    Filed: June 13, 2008
    Date of Patent: August 10, 2010
    Assignee: WWT International, Inc.
    Inventor: Norman Bruce Moore
  • Patent number: 7743849
    Abstract: The invention provides a drilling system for use in a borehole through an underground formation, comprising: a drilling assembly including a drill bit for drilling through the formation and a drilling drive; conveyance means including a conveyance drive connected to the drilling assembly and operable to move the drilling assembly through the borehole, wherein the conveyance drive is operable to move the drilling assembly along the borehole into a drilling position and the drilling drive is operable to urge the drill bit into contact with the formation when drilling takes place in the drilling position.
    Type: Grant
    Filed: September 15, 2005
    Date of Patent: June 29, 2010
    Assignee: Schlumberger Technology Corporation
    Inventors: Spyro Kotsonis, Eric Lavrut
  • Publication number: 20080149394
    Abstract: A downhole steering system comprises a first full gauge stabiliser 34, a bias unit 28, a universal joint 26, and a second full gauge stabiliser 22, the bias unit 28 and universal joint 26 being located between the first and second full gauge stabilisers 34, 22. Conveniently, the system further comprises a drill bit 10 and a fluid powered downhole motor 14, the motor being located, at least partially, between the drill bit 10 and the second stabiliser 22.
    Type: Application
    Filed: December 18, 2007
    Publication date: June 26, 2008
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: GEOFF DOWNTON
  • Publication number: 20080066963
    Abstract: A large scale hydraulically driven downhole reciprocating tractor to display substantially continuous advancement. The tractor may be configured to pull coiled tubing downhole in a continuous manner so as to substantially avoid static frictional resistance to the pulling. As a result, the tractor and coiled tubing may achieve up to about twice the depth into the well otherwise attainable. Additionally, the tractor may include a fail safe mechanism whereby a plurality of pilot operated valves are employed to ensure that immobilization of at least one anchor of the tractor is present at all times during downhole advancement to thereby avoid the undesired effects of coiled tubing spring-back.
    Type: Application
    Filed: June 30, 2007
    Publication date: March 20, 2008
    Inventors: Todor Sheiretov, Cecilia Prieto, Gokturk Tune, Stephen D. Hill
  • Patent number: 6955232
    Abstract: The invention relates to equipment for drilling a vertical borehole in hard ground, the equipment comprising: casing put successively into place in the borehole; a drilling machine having a rotary cutting head and presenting a structural frame; torque and thrust transmission means having a first end secured to the structural frame of the drilling machine; and securing means for securing the second end of the torque and thrust transmission means in translation and in rotation to said casing.
    Type: Grant
    Filed: November 20, 2002
    Date of Patent: October 18, 2005
    Assignees: Compagnie du Sol, The Robbins Company
    Inventor: Bernard Flaugere
  • Patent number: 6926102
    Abstract: Subsea controlled milling apparatus and methods. In a described embodiment, a method of controlling displacement of a cutting device conveyed on a tubular string in a subterranean well includes the steps of: interconnecting an apparatus in the tubular string, the apparatus including an axial advancement device and an anchoring device; actuating the anchoring device to anchor the apparatus in the well; applying a pressure differential to the advancement device, thereby displacing the cutting device relative to the apparatus; and operating the cutting device to cut a structure in the well.
    Type: Grant
    Filed: February 28, 2003
    Date of Patent: August 9, 2005
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Joseph E. Hess, Neil Hepburn, Benji Smith, John J. Guerrero, Ian W. Thackwray
  • Patent number: 6857486
    Abstract: The method of providing in excess of 60 kilowatts of electrical power to the electrical motor of a subterranean electric drilling machine through a substantially neutrally buoyant composite umbilical containing electrical conductors to reduce the frictional drag on the neutrally buoyant umbilical. Drilling and casing subterranean monobore wells are contemplated to distances of 20 miles from a wellsite. For drilling applications, the umbilical possesses a drilling fluid conduit. The umbilical also possesses high speed data communications such as a fiber optic cable or a coaxial cable that is used in the feedback control of the downhole electric drilling motor. Such umbilicals are also useful to provide power to remotely operated vehicles for subsea well servicing applications.
    Type: Grant
    Filed: August 15, 2002
    Date of Patent: February 22, 2005
    Assignee: Smart Drilling and Completion, Inc.
    Inventors: James E. Chitwood, William Banning Vail, III, William G. Crossland, Damir S. Skerl, Robert L. Dekle
  • Patent number: 6761233
    Abstract: An apparatus for propulsion inside an oblong cavity, such as pipes or the like, is disclosed.
    Type: Grant
    Filed: January 4, 2002
    Date of Patent: July 13, 2004
    Assignee: AA Technology AS
    Inventor: Harald Aadland
  • Patent number: 6722453
    Abstract: A downhole drilling motor comprises a housing including an integral stabilizing configuration. The stabilizing configuration may include a number of ribs which project from the surface of the housing and run longitudinally or helically along the housing. The stabilizing configuration may be a result of the cross-sectional shape of the housing which may be substantially triangular or square such that the diameter of a circle which circumscribes the cross section of the housing is substantially the same as the diameter of the borehole within which the motor may be used.
    Type: Grant
    Filed: June 13, 2001
    Date of Patent: April 20, 2004
    Inventor: Jay C. A. Crooks
  • Patent number: 6655458
    Abstract: A well logging instrument is disclosed which includes a housing operatively coupled to a well logging conveyance and movable within the wellbore. The housing has therein a formation testing system and an axial extension mechanism. The axial extension mechanism controllably extends and retracts to allow the formation testing system to perform tests and take samples in an axially fixed position in the wellbore while the housing moves through the wellbore.
    Type: Grant
    Filed: November 6, 2001
    Date of Patent: December 2, 2003
    Assignee: Schlumberger Technology Corporation
    Inventors: Andrew L. Kurkjian, John B. Elmer, William B. Underhill
  • Publication number: 20030116356
    Abstract: A gripper assembly for anchoring a tractor within a downhole passage and for assisting movement of the tractor within the passage. The gripper assembly includes an elongated mandrel and flexible toes that can be radially displaced to grip onto the surface of the passage. The toes are displaced by the interaction of a driver slidable on the mandrel and a driver interaction element on the toes. In one embodiment, the toes are displaced by the interaction of rollers and ramps that are longitudinally movable with respect to one another. In another embodiment, the toes are displaced by the interaction of toggles that rotate with respect to the toes.
    Type: Application
    Filed: October 9, 2002
    Publication date: June 26, 2003
    Inventors: Duane Bloom, Norman Bruce Moore, Rudolph Ernst Krueger
  • Patent number: 6575236
    Abstract: A device is provided for manipulating a tool in a well tubular. The device includes a cylindrical housing having a front end and a rear end, and radially extendible dogs for securing the device in the well tubular. A shaft is also included that is axially displaceable and rotatable from the front end of the device. The shaft is extendable from a displaceable sleeve, the displaceable sleeve also being extendable from the front end of the device. The outwardly extending end parts of the shaft and of the sleeve are provided with is effective for holding a tool.
    Type: Grant
    Filed: November 22, 2000
    Date of Patent: June 10, 2003
    Assignee: Shell Oil Company
    Inventor: Wilhelmus Hubertus Paulus Maria Heijnen
  • Publication number: 20020162689
    Abstract: A method and apparatus for horizontally drilling in wells utilizing a shoe assembly at the down hole end of upset tubing. The shoe assembly includes a fixed section and a rotatable section suspended below the fixed section. An electric motor and associated batteries and a gyroscope carried on the rotatable section enable an operator on the surface to selectively rotate and position the rotatable section to any desired angular location for drilling a hole in the well casing. After one or more holes have been cut in the casing, a drill assembly can be removed from the upset tubing and be replaced by a high pressure blaster nozzle to bore into the formation zones. The gyroscope enables the operator to accurately position the rotatable section to the same locations at which the holes have been cut. The drill assembly includes an electric motor with an associated battery, flexible drive shaft, and a hole saw.
    Type: Application
    Filed: July 3, 2002
    Publication date: November 7, 2002
    Inventors: Henry B. Mazorow, Paris E. Blair
  • Patent number: 5205365
    Abstract: A pressure actuated, telescoping subassembly is supported by a pipe string to axially move an attached member within a wellbore. Increasing fluid pressure to the subassembly actuates a telescoping action, axially moving the attached member but not the supporting pipe string. Motion can be used during rotary drilling or running of tubulars into a drilled borehole portion. Pressure actuation provides a means to remotely apply axial force near the member, such as a tool or drill string portion. Moving only the member instead of the entire drill string and member lowers the total force required to move members and provides a new means to chase drill bits and apply constant drilling forces. This minimizes the risk of pipe string overloading and buckling, exceeding rig weight limitations, and tool bit damage.
    Type: Grant
    Filed: February 28, 1991
    Date of Patent: April 27, 1993
    Assignee: Union Oil Company of California
    Inventor: Julio M. Quintana
  • Patent number: 4669555
    Abstract: A pump for circulating fluids downhole. The rotor of a positive displacement pump transmits torque from the upper drill string section to a tool attached to the lower end of the pump. Bow springs prevent the stator portion of the pump from rotating in the wellbore. Fluid is counterflowed up the interior of the drill string by the positive displacement pump through a check valve into a settling chamber. Cuttings or other solids settle out of the fluid and the fluid is then pumped out through one or more discharge ports to the lowermost end of the drill string.
    Type: Grant
    Filed: April 28, 1986
    Date of Patent: June 2, 1987
    Assignee: Conoco Inc.
    Inventor: Allen R. Petree
  • Patent number: 4051910
    Abstract: There is disclosed a fluid motor composed of a helical gear pair wherein an inner chamber has an external helical thread and a cooperating outer member has one more internal helical thread than the number of external helical threads on the inner member. The outer member is secured to one of the sections of a water swivel which is conventional except that it has an axial intake, radial tube and inner member supporting guide, and means are associated with an end of the inner member and with the other section of the water swivel to prevent relative rotation between said inner and outer members while permitting gyration of the inner member in relation to the outer member. Each end of the device has a tapered female thread. The motor may be used either end up. A drill pipe or suitable sub is threaded into one end of the device and a tool is threaded into the other end of the device, directly or with the sub between.
    Type: Grant
    Filed: December 8, 1975
    Date of Patent: October 4, 1977
    Inventor: Wallace Clark