Axially Telescoping Shaft Section Patents (Class 175/321)
  • Patent number: 9739102
    Abstract: An impact dissipation tool for supporting a downhole tool in downhole applications. The tool includes a base and a housing. The tool also includes a carriage located within the housing and coupled to the base, the carriage being movable relative to the housing upon a predetermined impact force. A dissipator disposed inside the housing is collapsible due to the relative movement of the carriage and the housing. The collapse of the dissipator dissipates the impact force transferred to the downhole tool.
    Type: Grant
    Filed: July 17, 2014
    Date of Patent: August 22, 2017
    Assignee: Schlumberger Technology Corporation
    Inventors: Alan J. Sallwasser, Bulent Finci, Jaime Pedraza, Akio Kita
  • Patent number: 9695678
    Abstract: A system and method allows the operation of a remotely located tool in an application where there is a telescoping space out joint in such a manner that the hanger need not be released. A hydraulic piston is surface actuated to move gripping teeth against the pipe and then take the pipe with the gripping teeth so that a tool that is engaged by the string can be remotely operated while safety features for the well can remain operative. The shifted position is held with maintained control line pressure. Some release of the control line pressure will not allow the operating piston to return. Rather, a check valve holds the shifted piston position until a differential pressure on the check valve drops to a predetermined value so that the check valve acts as a dump valve. The system operates off annulus pressure if the control line is damaged.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: July 4, 2017
    Assignee: Baker Hughes Incorporated
    Inventors: Andrew Webber, Drayton W. Bryant, Santos Manzano, Evan Williams
  • Patent number: 9657523
    Abstract: A method for estimating a location for disposing a tool in a drill tubular having a drill bit includes performing a modal analysis of the drill tubular to determine natural eigenfrequencies and corresponding eigenmodes of torsional oscillations of the model and selecting a predominant natural eigenfrequency and corresponding eigenmode from the determined natural eigenfrequencies and corresponding eigenmodes. The method further includes performing a forced modal analysis of the drill tubular at the predominant eigenfrequency with a force or moment acting on the drill bit to provide a correlation between forced torsional deflection amplitude and position and estimating the position to be within a range of positions wherein a vibration qualification of the tool is greater or equal to the torsional deflection amplitude throughout the range.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: May 23, 2017
    Assignee: BAKER HUGHES INCORPORATED
    Inventors: Hatem Oueslati, Hanno Reckmann, Jayesh R. Jain
  • Patent number: 9644440
    Abstract: Systems and methods for producing forced axial vibration of a drillstring. Systems include a cam housing positioned above a drill bit in a drillstring, a rotatable cam positioned internal of the cam housing, the rotatable cam having at least one cam surface exhibiting reciprocating axial movement upon rotation of the rotatable cam, and a non-rotatable cam follower positioned internal surface of the cam housing and having at least one cam follower surface engaging the cam surface. The cam follower transfers the reciprocating axial movement to the drill bit. The rotatable cam is rotated by a fluid-powered positive displacement power section positioned above and mechanically attached to the rotatable cam in the drillstring to effect the rotation of the rotatable cam, and thus effect the reciprocating axial movement of the drill bit.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: May 9, 2017
    Assignee: LAGUNA OIL TOOLS, LLC
    Inventor: Scott Kerstetter
  • Patent number: 9574408
    Abstract: An apparatus for use in a wellbore is disclosed. The apparatus includes a string for deployment into the wellbore, the string including at least one packer and an expansion tool downhole of the packer. The expansion tool further includes: a release device and a lock device inside a movable housing; wherein the lock device prevents shifting of the release device until the lock device is moved to an unlock position by application of a first force to the lock device. The release device is movable to a release position by application of a second force after the lock device has been moved to the unlock position. The movable housing is capable of moving over the release device after the release device has been moved to the release position to absorb at least one of contraction and expansion of the expansion tool.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: February 21, 2017
    Assignee: BAKER HUGHES INCORPORATED
    Inventors: Travis E. Cochran, Aaron C. Hammer, Jason A. Allen, Robert S. O'Brien, Jai K. Koli
  • Patent number: 9567812
    Abstract: An impact dissipation tool for supporting a downhole tool in downhole applications. The tool includes a base and a housing. The tool also includes a carriage located within the housing and coupled to the base, the carriage being movable relative to the housing upon a predetermined impact force. A dissipator disposed inside the housing is collapsible due to the relative movement of the carriage and the housing. The collapse of the dissipator dissipates the impact force transferred to the downhole tool.
    Type: Grant
    Filed: July 17, 2014
    Date of Patent: February 14, 2017
    Assignee: Schlumberger Technology Corporation
    Inventors: Alan J. Sallwasser, Bulent Finci, Jaime Pedraza, Akio Kita
  • Patent number: 9522443
    Abstract: A method for reconditioning a rotary connection of a rotor on a drilling mud rotor. A new rotary connection is machined from a metal blank and is provided with an externally threaded pin end which is subsequently screwed into a mating female threaded opening provided on the rotor body. The new metal connection is welded to the rotor body at an intersection of the connection and selected end of the rotor body. The threaded end of the new connection is threaded a predetermined depth which is selected to bottom out at a selected depth within the mating female threaded opening provided on the rotor body prior to the welding step.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: December 20, 2016
    Assignee: Hunting Energy Services, Inc.
    Inventors: David A. Bowar, Tyler J. Batt, William Michael Webber
  • Patent number: 9328563
    Abstract: An underreamer for increasing a diameter of a wellbore. The underreamer includes a body having an axial bore extending at least partially therethrough. An annular sleeve may be coupled to the body and adapted to move with respect to the body. The sleeve may include a plurality of grooves formed therein that are circumferentially offset from one another. A pin may be coupled to the body. The sleeve may be adapted to move with respect to the pin to transition the pin from a first groove in the sleeve to a second groove in the sleeve. The sleeve may be in a first axial position with respect to the body when the pin is positioned in the first groove, and the sleeve may be in a second axial position with respect to the body when the pin is positioned in the second groove. The underreamer also includes one or more cutter blocks. The radial cutting diameter of the one or more cutter blocks depends on the axial position of the one or more cutter blocks and may be determined therefrom.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: May 3, 2016
    Assignee: Smith International, Inc.
    Inventors: Manoj D. Mahajan, Sameer P. Bhoite
  • Patent number: 9187964
    Abstract: A downhole tool includes first and second collars, each including a chassis portion. A first axial load device is disposed in the first collar to exert axial force on the respective chassis portion disposed in the first collar. A second axial load device is disposed in the second collar to exert axial force on the respective chassis portion disposed in the second collar. A collar connector is coupled to the first and second collars and compresses the first axial load device.
    Type: Grant
    Filed: September 19, 2012
    Date of Patent: November 17, 2015
    Assignee: Schlumberger Technology Corporation
    Inventor: Kent David Harms
  • Patent number: 9121233
    Abstract: An apparatus for reducing vibration in a downhole component includes: an electrically conductive auxiliary mass attached to the component and configured to vibrate in a direction corresponding to a direction of downhole component vibration and absorb a portion of the downhole component vibration; and a magnetic component configured to generate a magnetic field through the auxiliary mass having a direction at least partially perpendicular to the direction of auxiliary mass vibration, the magnetic field configured to induce a current in the auxiliary mass in response to auxiliary mass vibration. The apparatus has an auxiliary mass vibration frequency tuned relative to a selected natural vibration frequency of the downhole component to reduce vibration of the downhole component, the auxiliary mass vibration frequency based on a magnetic stiffness of the auxiliary mass, the magnetic stiffness based on a strength of the magnetic field and/or a resistance of the auxiliary mass.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: September 1, 2015
    Assignee: Baker Hughes Incorporated
    Inventor: Carlos A. Prieto
  • Patent number: 9080633
    Abstract: The present invention relates to a shock absorbing device (100) for mating an integrated deck to a jacket leg (51), characterized by: a hollow constraining cylinder (10) having a bottom closure (11), connected to the top of the jacket leg (51); an elastomer module (20) provided in the hollow constraining cylinder (10), wherein inner diameter of the hollow constraining cylinder (10) is larger than outer diameter of the elastomer module (20) thereby forming an annular space; a plurality of reinforcing plates (30) embedded within the elastomer module (20), vertically spaced apart from each other; a protective assembly comprising a elastomeric cap (41) and a minimum of one protective ring (42) mounted to the elastomeric cap (41); wherein during mating of the integrated deck to jacket leg (51), a support column (52) of the integrated deck abuts on the protective assembly and compresses the elastomer module (20) to secure the connection of the integrated deck to the jacket leg (51).
    Type: Grant
    Filed: June 27, 2012
    Date of Patent: July 14, 2015
    Assignee: Lembaga Getah Malaysia (Malaysian Rubber Board)
    Inventors: Kamarudin Ab Malek, Ismaliza Ismail, Hon Fei Wong, Shamsul Kamaruddin
  • Patent number: 8931548
    Abstract: A modular tool for use in subterranean formations includes a first module, a second module and one or more connectors for connecting the first and second modules. In particular, the first module includes a first collar that at least partially defines an exterior of the tool and that includes a first engagement mechanism at a first end of the collar and a second engagement mechanism at a second end of the collar. The first module also includes a fluid passageway for passing drilling fluid therethrough. The second module has a similar configuration as includes similar architecture. The one or more connectors facilitate the connection of at least one flowline fluidly connected to an exterior of the tool, and an electrical pathway for transmitting power and/or data between the modules.
    Type: Grant
    Filed: February 8, 2011
    Date of Patent: January 13, 2015
    Assignee: Schlumberger Technology Corporation
    Inventors: Ashers Partouche, Steven G. Villareal, Julian J. Pop, Albert Hoefel, Kent D. Harms
  • Patent number: 8919457
    Abstract: An apparatus for determining the weight on a drill bit and axial forces along a drill string drilling though an earthen formation. The apparatus comprising an LVDT incorporated into a torsional bearing of a magneto-rheological damping system such that the LVDT senses the relative displacement and accelerations between a bearing mandrel portion and a bearing casing portion of the torsional damper. The LVDT is calibrated with respect to a spring in the damping system that resists relative motion between the bearing mandrel and bearing casing such that the output of the LVDT can be transformed into the force associated with the weight on the drill bit, and the same LVDT accelerations combined with the mass distribution along the drill string to determine axial stresses.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: December 30, 2014
    Inventor: Mark Hutchinson
  • Publication number: 20140326513
    Abstract: An impact dissipation tool for supporting a downhole tool in downhole applications. The tool includes a base and a housing. The tool also includes a carriage located within the housing and coupled to the base, the carriage being movable relative to the housing upon a predetermined impact force. A dissipator disposed inside the housing is collapsible due to the relative movement of the carriage and the housing. The collapse of the dissipator dissipates the impact force transferred to the downhole tool.
    Type: Application
    Filed: July 17, 2014
    Publication date: November 6, 2014
    Applicant: Schlumberger Technology Corporation
    Inventors: Alan J. Sallwasser, Bulent Finci, Jaime Pedraza, Akio Kita
  • Patent number: 8820007
    Abstract: A post sleeve installation assembly includes: an elastomeric sleeve core shaped to form a post sleeve when positioned in uncured concrete, a removable stiffener inside the core, an aperture extending lengthwise in the stiffener, a locking element positioned within the core, and an assembly plate coupled to the stiffener. The assembly plate clamps to a prefabricated sleeve element, with the core and stiffener positioned within a post cavity of the sleeve element. an installation stake is positioned in the aperture and prevented from sliding upwards by the locking element. A release point on the assembly plate permits an operator to release the locking element for removal of the stake. To install a post sleeve, the operator positions the installation assembly, clamped to a prefabricated sleeve element, in a post hole with the stake resting on the bottom, then fills the hole with concrete, manipulating the stake to position the assembly.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: September 2, 2014
    Inventor: N. Eric Knudsen
  • Patent number: 8714284
    Abstract: An apparatus and method for producing pressure signals which indicate when weight-on-bit, during the drilling of a wellbore, exceed a predetermined, upper limit. The apparatus includes a first mandrel and a second mandrel that inserts into and is axially moveable within the first mandrel. The position of the second mandrel may be dependent upon the balance of a biasing member's biasing strength and the weight-on-bit exerted on the drill bit. If weight-on-bit values overcome the biasing strength of the biasing member, the second mandrel may move uphole within the first mandrel and create a pressure signal that is detectable at surface so that the operator is made aware that weight-on-bit values exceed the upper limit.
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: May 6, 2014
    Assignee: BBJ Tools Inc.
    Inventor: Bradley R. Cote
  • Patent number: 8708066
    Abstract: A drilling apparatus including a drill collar forming part of a primary drilling assembly and having an outward opening groove in the side thereof, and a secondary drilling assembly. The secondary drilling assembly includes a tubular drill string connected at one end to the drill collar, a drilling motor mounted in the drill string, and a drill bit mounted at the other end of the drill string and connected to the drilling motor. The secondary drilling assembly is mounted in the drill collar so as to be movable between a first position in which the drill bit is seated in the groove, and a second position in which the bit projects laterally from the groove in the side of the drill collar.
    Type: Grant
    Filed: August 30, 2007
    Date of Patent: April 29, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Jacques Orban, Sami Iskander
  • Patent number: 8505653
    Abstract: A double-acting compounder comprises: an outer housing; an inner mandrel disposed telescopically within the outer housing to define a fluid chamber; an equalizer, such as an equalizer piston, between the fluid chamber and an exterior of the outer housing for equalizing pressure; a movable seal assembly within the fluid chamber with a first end defining an end of the fluid chamber; the inner mandrel having an outer shoulder for moving the movable seal assembly with the inner mandrel when the inner mandrel moves in a first direction relative to the outer housing to compresses fluid within the fluid chamber; and the outer housing having an inner shoulder for preventing the movable seal assembly from moving with the inner mandrel when the inner mandrel moves in a second direction relative to the outer housing to compresses fluid within the fluid chamber.
    Type: Grant
    Filed: April 1, 2010
    Date of Patent: August 13, 2013
    Assignee: Lee Oilfield Service Ltd.
    Inventors: Michael Shoyhetman, David Budney, Craig Budney, Glenn Budney
  • Patent number: 8439129
    Abstract: An anti-stall tool in an oil well drilling assembly that controls reciprocation of the drill bit by a controller that alters weight-on-bit (WOB) depending upon measured downhole pressure or torque at the downhole motor. The controller receives preset high and low working pressure limits for the downhole motor and keeps the drill bit rotating by maintaining WOB during normal drilling operations, increasing WOB if sensed working pressure indicates that drill bit loading or torque is undesirably low, and reversing WOB by retracting the drill bit if excessive working pressure or torque is sensed.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: May 14, 2013
    Assignee: WWT International, Inc.
    Inventors: Philip Wayne Mock, Rudolph Ernst Krueger, IV
  • Publication number: 20130092447
    Abstract: An impact dissipation tool for supporting a downhole tool in downhole applications. The tool includes a base and a housing. The tool also includes a carriage located within the housing and coupled to the base, the carriage being movable relative to the housing upon a predetermined impact force. A dissipator disposed inside the housing is collapsible due to the relative movement of the carriage and the housing. The collapse of the dissipator dissipates the impact force transferred to the downhole tool.
    Type: Application
    Filed: October 18, 2011
    Publication date: April 18, 2013
    Applicant: THRUBIT B.V.
    Inventors: Alan J. Sallwasser, Bulent Finci, Jaime Pedraza, Akio Kita
  • Patent number: 8381842
    Abstract: In various embodiments, a mining device can include a first housing portion and a second housing portion where relative movement between the first and second housing portions can extend and/or retract a cutting member with respect to the mining device. The mining device can further include a cable which can be mounted to the second housing portion where the cutting member is mounted to the cable and can be radially extended with respect to the first and second housing portions when the second housing portion is moved relative to the first housing portion along an axis. As the cutting member is extended, it can contact the sidewalls of a subterranean shaft to loosen material therefrom.
    Type: Grant
    Filed: July 25, 2011
    Date of Patent: February 26, 2013
    Inventors: Larry P. Gourley, Allen J. Gourley
  • 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: 8256516
    Abstract: A system and a method provide a downhole mechanical energy absorber that protects downhole tools from impact loads and shock loads that occur during run-in contacts, tool drops, perforating blasts, and other impact events. A continuous localized inelastic deformation of a tube is a primary energy absorber in a load limiting design of the downhole mechanical energy absorber.
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: September 4, 2012
    Assignee: Starboard Innovations, LLC
    Inventor: John P. Rodgers
  • Publication number: 20120205158
    Abstract: In one embodiment, a downhole assembly includes a motor that is operatively coupled to a transmission, wherein the transmission is operatively coupled to an upper shaft disposed within a housing. The upper shaft is supported by a first radial bearing assembly disposed within the housing. A thrust bearing assembly including a ball bearing disposed between two races is provided. The upper shaft extends through and is supported by the first radial bearing. A distal end of the upper shaft has a first set of mating splines disposed thereon. A lower shaft supported by a second radial bearing assembly is disposed within the housing, wherein the lower shaft has a second set of mating splines disposed thereon. The second set of mating splines are adapted to mate with the first set of mating splines and the lower shaft is telescopically extendable from the upper shaft. A catch is machined on an internal surface of the lower shaft to limit the extent of travel of the lower shaft.
    Type: Application
    Filed: August 17, 2010
    Publication date: August 16, 2012
    Inventors: Matthew J. Barnes, Aaron T. Kirk, Christopher J. Rayha
  • 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: 8205691
    Abstract: A down hole vibration dampener is disclosed that uses a set of polyurethane rings and steel support rings to create a shock absorber within the drill string to reduce the amount of vibration in the drill string. A splined mandrel extends longitudinally within a hollow cylindrical housing. A seal structure present between the exterior of the mandrel and the interior of the housing forms a lubricant receiving chamber. The series of polyurethane and steel rings are located in the lubricant chamber and are compressible longitudinally to absorb vibration and shock loads.
    Type: Grant
    Filed: January 14, 2010
    Date of Patent: June 26, 2012
    Assignee: Hunting Energy Services (Drilling Tools), Inc.
    Inventors: David A. Bowar, Paris E. Blair, Joseph L. Ficken
  • Patent number: 8146680
    Abstract: An anti-stall tool in an oil well drilling assembly that controls reciprocation of the drill bit by a controller that alters weight-on-bit (WOB) depending upon measured downhole pressure or torque at the downhole motor. The controller receives preset high and low working pressure limits for the downhole motor and keeps the drill bit rotating by maintaining WOB during normal drilling operations, increasing WOB if sensed working pressure indicates that drill bit loading or torque is undesirably low, and reversing WOB by retracting the drill bit if excessive working pressure or torque is sensed.
    Type: Grant
    Filed: January 5, 2009
    Date of Patent: April 3, 2012
    Assignee: WWT International, Inc.
    Inventors: Philip Wayne Mock, Rudolph Ernst Krueger, IV
  • Patent number: 8100200
    Abstract: A chuck assembly, an assembly for an earth-boring drill assembly, and a method of retaining a drill bit for an earth-boring drill assembly, the drill assembly including a casing. The assembly includes a drill bit having a generally cylindrical head, a chuck connectable to the casing and operable to support the bit, the chuck having an outer surface with a radially-outwardly extending chuck ridge, an axially-extending first slot being defined in the ridge, a sleeve having an inner surface with a radially-inwardly extending sleeve ridge engageable with the chuck ridge to limit axial movement of the sleeve relative to the chuck, the sleeve having a first lug supported on the inner surface, the first lug being positionable in the first slot to limit relative rotational movement between the sleeve and the chuck. The assembly may also include a retainer assembly provided between the sleeve and the bit.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: January 24, 2012
    Assignee: Atlas Copco Secoroc LLC
    Inventor: Dale Richard Wolfer
  • Publication number: 20110240375
    Abstract: A double-acting compounder is disclosed, comprising: an outer housing; an inner mandrel at least partially disposed telescopically within the outer housing to define a fluid chamber between the inner mandrel and the outer housing, the fluid chamber containing fluid and being sealed at an uphole end and a downhole end; an equalizer between the fluid chamber and an exterior of the outer housing for equalizing pressure; a movable seal assembly disposed within the fluid chamber and having a first end that defines the uphole end or the downhole end of the fluid chamber; the inner mandrel having an outer shoulder for contacting a second end of the movable seal assembly to move the movable seal assembly with the inner mandrel when the inner mandrel moves in a first direction relative to the outer housing to compresses fluid within the fluid chamber; and the outer housing having an inner shoulder for contacting the second end of the movable seal assembly to prevent the movable seal assembly from moving with the inner
    Type: Application
    Filed: April 1, 2010
    Publication date: October 6, 2011
    Applicant: LEE OILFIELD SERVICE LTD.
    Inventors: MICHAEL SHOYHETMAN, DAVID BUDNEY, CRAIG BUDNEY, GLENN BUDNEY
  • Patent number: 7997356
    Abstract: In various embodiments, a mining device can include a first housing portion and a second housing portion where relative movement between the first and second housing portions can extend and/or retract a cutting member with respect to the mining device. The mining device can further include a cable which can be mounted to the second housing portion where the cutting member is mounted to the cable and can be radially extended with respect to the first and second housing portions when the second housing portion is moved relative to the first housing portion along an axis. As the cutting member is extended, it can contact the sidewalls of a subterranean shaft to loosen material therefrom.
    Type: Grant
    Filed: July 19, 2010
    Date of Patent: August 16, 2011
    Inventors: Larry P. Gourley, Allen J. Gourley
  • Patent number: 7950475
    Abstract: A percussion drilling assembly for boring into the earth is disclosed. The percussion drilling assembly includes a top sub, a casing coupled to the top sub, and a feed tube assembly disposed within the top sub and the casing. The feed tube assembly includes a non-rigid coupling having a throughbore and a tubular body disposed therein. The tubular body is translatable in the radial position and/or rotatable relative to a longitudinal centerline extending through the non-rigid coupling.
    Type: Grant
    Filed: May 27, 2008
    Date of Patent: May 31, 2011
    Assignee: Smith International, Inc.
    Inventors: Shantanu Swadi, Lance Underwood, Jack Marshall, Charles Dewey, Kevin Harrington
  • Patent number: 7946360
    Abstract: A system for drilling a lateral hole departing from a main well. The system comprises a motor assembly (415) including a motor (412) to generate a rotating torque, an axial thruster (411) to generate an axial force, a blocking system (410) to fix the motor and the axial thruster downhole. The motor assembly further includes a drive shaft (414) to transmit the rotating torque. The system further comprises a first and second connector (402, 404) for transmitting the rotating torque and the axial force from the motor assembly to a drill string assembly. The first connector is connectable to the drill string assembly so as to transmit the axial force only to the drill pipe (401), and to transmit the rotating torque to a further drive (405) shaft positioned within the drill pipe. The second connector (402) is connectable to the drill string assembly so as to transmit both the axial force and the rotating torque to the drill pipe (401).
    Type: Grant
    Filed: January 26, 2005
    Date of Patent: May 24, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: Jacques Orban, Spyro Kotsonis, Jo Acquaviva
  • Patent number: 7854275
    Abstract: An anti-stall tool in an oil well drilling assembly that controls reciprocation of the drill bit by a controller that alters weight-on-bit (WOB) depending upon measured downhole pressure or torque. The downhole controller keeps the drill bit rotating by maintaining WOB during normal drilling operations, increasing WOB if sensed working pressure indicates that drill bit loading or torque is undesirably low, and reversing WOB by applying a spring force for retracting the drill bit if excessive working pressure or torque is sensed.
    Type: Grant
    Filed: January 5, 2009
    Date of Patent: December 21, 2010
    Assignee: Western Well Tool, Inc.
    Inventors: Philip Wayne Mock, Rudolph Ernst Krueger, IV
  • Patent number: 7779935
    Abstract: An apparatus for mechanically engaging and releasably coupling two tubular members may include a first housing member, a second housing member and a piston member, wherein, in a first position, the first and second housing members are fixed relative to each other by the piston, and wherein, in a second position, the second housing member is rotatable relative to the first housing member. Certain embodiments include matingly engaged axially disposed and axially offset splines. Other embodiments include first and second interlocking mechanisms that are in an opposed relationship to couple first and second tubular members in a fixed position. Some embodiments include a method of reacting a first rotational coupling against a second axial coupling to resist both axial and rotational movement between first and second tubulars. Other embodiments include displacing a moveable member to both axially and rotationally release first and second tubulars.
    Type: Grant
    Filed: June 9, 2008
    Date of Patent: August 24, 2010
    Assignee: National Oilwell Varco, L.P.
    Inventors: Fred Jagert, Xu Shijie
  • Patent number: 7779932
    Abstract: Implementations of the present invention relate generally to methods, systems, and apparatus for absorbing vibration and shock impulses created during drilling operations. In particular, implementations of the present invention include drill-string shock absorbers adapted to absorb longitudinal forces produced during a drilling operation. For example, drill-string shock absorbers in accordance with at least one implementation of the present invention include a generally cylindrical housing having a first end and a second end coupled together by a radially interlocking joint. Such a configuration can reduce mechanical failure and increase the operating life of the shock absorber by transmitting torsional forces directly between the ends of the housing and reducing stresses from being transferred to fastening means securing the first and second ends of the cylindrical housing together.
    Type: Grant
    Filed: October 16, 2008
    Date of Patent: August 24, 2010
    Assignee: Longyear TM, Inc.
    Inventors: Markus Hartung, Stefan Wrede, Christof Kruse
  • Patent number: 7770670
    Abstract: In various embodiments, a mining device can include a first housing portion and a second housing portion where relative movement between the first and second housing portions can extend and/or retract a cutting member with respect to the mining device. The mining device can further include a cable which can be mounted to the second housing portion where the cutting member is mounted to the cable and can be radially extended with respect to the first and second housing portions when the second housing portion is moved relative to the first housing portion along an axis. As the cutting member is extended, it can contact the sidewalls of a subterranean shaft to loosen material therefrom.
    Type: Grant
    Filed: August 29, 2007
    Date of Patent: August 10, 2010
    Inventors: Larry P. Gourley, Allen J. Gourley
  • 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: 7677334
    Abstract: An anti-surge/reverse thrusting tool for reducing the forces on a drill bit used in subterranean well drilling operations along with methods for drilling wells using a drill string employing the tool. The tool utilizes the pressure differential between drilling fluid flowing through the tool and the fluid located in the well bore annulus proximate the tool to reduce the likelihood of drill bit stall. The tool generally comprises an outer housing and a piston assembly that is axially shiftable relative to the housing.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: March 16, 2010
    Assignee: ConocoPhillips Company
    Inventors: Curtis G. Blount, Charles D. Hailey, Tammy S. Halley, legal representative, William D. Rauchenstein
  • Publication number: 20100025118
    Abstract: A cushion sub 10 including an input portion 130 for receiving drive from a drive means, and an output portion 60 for transmitting the drive to a drill string. One of the input portion 130 and the output portion 60 including one or more guides 70. The other of the input portion 130 and the output 60 portion being engaged with the one or more guides 70 for transmitting the drive and arranged for relative reciprocating sliding movement along the one or more guides 70 between a first and a second limit of movements. At least one of the one or more guides 70 including a shoulder 500 adjacent at least one of and between the first and the second limit of movement to minimise adverse step formation as the at least one guide 70 wears. One of the input portion 130 and the output portion 60 may define a cylinder 20, 50 including first end wall 40 and second endwall 50. The guides 70 might be formed by drive pins 70. The drive pins 70 may be press fitted to the first endwall 40.
    Type: Application
    Filed: August 1, 2008
    Publication date: February 4, 2010
    Applicant: TPT Precision Engineering Pty Ltd
    Inventors: Edward James Hampson, Paul Anthony Williams, Tony Lee Braut
  • Patent number: 7578360
    Abstract: A dynamic damper for installation in a drill string (1), the purpose of which damper is to reduce the risk of jamming the drill bit (5), thereby avoiding damages in the event of unwanted extreme oscillations and rotational speed of the drill string caused by uncontrolled release of torsional energy in the drill string when the drill string suddenly breaks free of the jam. For this purpose, the damper is constructed from an outer and an inner string section (11) and (12), supported concentrically and interconnected through a helical threaded connection (10), so that relative rotation between the sections caused by torque (8) will give an axial movement that lifts and loosens the drill bit from the bottom of the hole in critical jamming situations. The spring (9) maintains the outer string section in an axial position against the shoulder (22). A hydraulic damping effect on the axial movements is achieved by oil volumes (16) and (17) being interconnected through narrow bores (18).
    Type: Grant
    Filed: April 14, 2003
    Date of Patent: August 25, 2009
    Inventor: Per Olav Haughom
  • Publication number: 20090200085
    Abstract: A system and method for drilling a well bore with an under-balanced hydrostatic pressure. The system comprises a tubular containing a first port and wherein a well bore annulus is formed between the well bore and the tubular member, and a compression member disposed about the outer portion of the tubular member, the compression member having extending therefrom an internal sliding mandrel, and wherein the internal sliding mandrel contains a second port. The system further comprises an external sliding sleeve operatively associated with the internal sliding mandrel, wherein the external sliding sleeve containing a third port, and wherein in a closed position the first, second and third port are misaligned and in an open position the first, second and third port are aligned. The system also includes a compressible seal disposed about the external sliding sleeve and in contact with the internal sliding mandrel, the compressible seal responsive to a longitudinal weight transferred to the compression member.
    Type: Application
    Filed: February 11, 2008
    Publication date: August 13, 2009
    Inventor: Danny T. Williams
  • Patent number: 7506704
    Abstract: A downhole releasable swivel joint comprises a mandrel and a housing. A resilently deformable retaining device maintains the components in the illustrated first relative axial position until downward movement of the housing is stopped and a sufficient load is applied to the mandrel to overcome the retaining force of the retaining device whereupon the mandrel is able to move downwardly relative to the housing to adopt a second relative axial position. Apertures are provided in the wall of the mandrel and apertures are provided in the wall of the housing. When the mandrel is in the illustrated first relative axial position the apertures and are isolated from each other by a seal. When the mandrel is in the second relative axial position the apertures communicate with each other to permit flow from the interior of the mandrel to the exterior of the housing.
    Type: Grant
    Filed: February 1, 2006
    Date of Patent: March 24, 2009
    Assignee: Smith International, Inc.
    Inventors: Bruce McGarian, Rory McCrae Tulloch
  • Patent number: 7419015
    Abstract: An axial bearing includes a first piston and a second piston. Axial contact surfaces between the pistons are arranged in the same pressure space. The same pressure fluid fed to the axial bearing acts on the contact surfaces and on working pressure surfaces of the pistons. A rock drilling machine is also provided with such an axial bearing.
    Type: Grant
    Filed: December 29, 2003
    Date of Patent: September 2, 2008
    Assignee: Sandvik Mining and Construction Oy
    Inventors: Timo Muuttonen, Esa Rantala
  • Patent number: 7413036
    Abstract: A telescoping sub (50) for mining operations and the like. The telescoping sub (50) includes a rotor (94) portion coupleadle to the rotary head of a drilling rig, and a stator (74) portion that is coupleable to a drill rod. The rotor (94) portion is slideadly coupled to the stator (74) portion and is moveable with respect thereto between an extended position and a retracted position. With the telescoping sub (50) in the retracted position, the drilling rig is operated to drill to a first depth. The drilling rig is then operated to move the rotor (94) portion to the extended position, and the drilling rig is operated to drill to a second depth that is greater than the first depth.
    Type: Grant
    Filed: March 4, 2004
    Date of Patent: August 19, 2008
    Assignee: Atlas Copco Drilling Solutions Inc.
    Inventors: Arnold R. Law, Ajay Kumar
  • Publication number: 20080124178
    Abstract: Apparatus and methods for forming an underground passageway and simultaneously laying therein a conduit or other elongate components comprises a rotary drill member coupled to a rotary and axially movable drill stem. The coupling is one which virtually automatically enables the drill stem to be coupled to and uncoupled from the drill member and comprises interlocking driving lugs carried by the drill stem and the drill member. The driving lugs are sandwiched between telescoped portions of the drill member and the drill stem and thereby are reinforced by such portions of the drill stem and the drill member in such manner as to preclude movement of the driving lugs in both radially inward and radially outward directions.
    Type: Application
    Filed: June 11, 2007
    Publication date: May 29, 2008
    Inventors: Joseph M. Rohde, Richard A. Rohde, Robert L. Gilling, James R. Heim, Michael J. Kenny, Thomas A. Kenny
  • Patent number: 7377316
    Abstract: An apparatus for lowering wireline into a well. The apparatus comprises a sleeve having a first and second end, wherein the first end contains a first plurality of wedges and the second end contains a second plurality of wedges. The apparatus further includes an upper mandrel having a third plurality of wedges that are configured to engage the first plurality of wedges and a first cap configured to engage the upper mandrel, wherein the first cap contains a first and second passage, and wherein the first passage is configured to receive the wireline. The apparatus further comprises a lower mandrel having a fourth plurality of wedges that engage with the second plurality of wedges, and a second cap configured to engage the lower mandrel, wherein the second cap contains an opening that has the lower mandrel disposed there through.
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: May 27, 2008
    Inventor: Anthony R. Boyd
  • Patent number: 7377339
    Abstract: A system for damping vibration in a drill string can include a valve assembly having a supply of a fluid, a first member, and a second member capable of moving in relation to first member in response to vibration of the drill bit. The first and second members define a first and a second chamber for holding the fluid. Fluid can flow between the first and second chambers in response to the movement of the second member in relation to the first member. The valve assembly can also include a coil or a valve for varying a resistance of the fluid to flow between the first and second chambers.
    Type: Grant
    Filed: April 19, 2007
    Date of Patent: May 27, 2008
    Assignee: APS Technology, Inc.
    Inventors: Mark Ellsworth Wassell, William Evans Turner, Daniel E. Burgess, Carl Allison Perry
  • Patent number: 7299885
    Abstract: A method and apparatus for allowing a downhole drill string to be stuck at one location and continue to rotate above the stuck section. The apparatus provides a method for collapsing the stuck subassembly by reducing its outside diameter. Simultaneous with the subassembly collapse, a jarring action is initiated from within the drill string to further loosen the stuck sections. At the same time drilling fluid inside the string is allowed to circulate outside the string through a circulation sub. The fluid is forced around the stuck subassembly further increasing the likelihood that the subassembly will be freed.
    Type: Grant
    Filed: July 10, 2003
    Date of Patent: November 27, 2007
    Inventor: Jeffery D. Baird
  • Patent number: 7287603
    Abstract: A drilling assembly (2) comprises upper (4) and lower (6) drill strings with a fluid passage (80) therethrough for distributing fluid to a bottom hole assembly (10). The upper drill string (4) has an upper end (11) connectable to a drilling apparatus (13) and fluid source (16) and a lower end (18) with an attached casing expander unit (20) that communicates the fluid passage (80) of the upper (4) and lower (6) drill strings. An upper end (22) of the lower drill string (6) is formed from a casing string (24) telescoped over the casing expander unit. A constriction (31) connects the casing string (24) with the rest of the lower drill string (6). A flow restriction device (35) in the lower drill string acts to control fluid flow through the fluid passage.
    Type: Grant
    Filed: September 5, 2003
    Date of Patent: October 30, 2007
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Richard T. Hay, Gerald Edward Kent, Jerry Lavelle Keen, Jr., Charles M. Reid
  • Patent number: 7275605
    Abstract: A rotatable drilling shoe attachable to a section of casing that allows for drilling and casing of a well bore in a single trip. The drilling shoe includes a fixed section and a rotatable section that has a drillable bit attached thereto. The drilling shoe further includes a mechanism for inhibiting rotation of the rotatable section after the casing is cemented into place so that the drillable bit can be drilled out by a subsequent drilling operation.
    Type: Grant
    Filed: March 12, 2004
    Date of Patent: October 2, 2007
    Assignee: ConocoPhillips Company
    Inventors: Kenneth L. Smith, Edward T. Cousins, Marc E. Leveque, Gary J. Collins