Sectional Guide Or Shaft Having Means To Lock Sections In Angular Relation While Boring Patents (Class 175/74)
  • Patent number: 9617791
    Abstract: A steerable drill bit may be used to drill a lateral borehole from a primary wellbore. The steerable drill bit may be part of a bottomhole assembly that also includes a directional control system. A deflection member, such as a whipstock, may be anchored in the primary wellbore. When the bottomhole assembly approaches the deflection member, the directional control system may steer the steerable drill bit to reduce and potentially eliminate contact between the steerable drill bit and a ramped surface of the deflection member. By restricting contact between the deflection member and the steerable drill bit, cutting elements of the steerable drill bit may obtain an increase in cutting efficiency and/or effective life.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: April 11, 2017
    Assignee: SMITH INTERNATIONAL, INC.
    Inventors: Praful C. Desai, Shantanu N. Swadi
  • Patent number: 9587440
    Abstract: The invention relates to a dynamic point-the-bit rotary steerable drilling tool and a measuring method thereof. The dynamic point-the-bit rotary steerable drilling tool comprises a rotary housing, a stabilized platform assembly, a hollow servo-motor assembly, a drilling fluid passage, an inner eccentric ring, an outer eccentric ring, a drilling bit shaft and a universal joint. The dynamic point-the-bit rotary steerable drilling tool also comprises a stabilized platform communication and power supply system which includes an instrument storehouse fixed at the upper end of the rotary housing, a main circuit board, an auxiliary circuit board mounted on the stabilized platform upper-end cover, an electromagnetic coupler primary-side, an electromagnetic coupler secondary winding and an electromagnetic coupler primary-side mounting plate fixed at the lower end of a coupler.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: March 7, 2017
    Assignee: China University of Petroleum
    Inventors: Weiliang Wang, Yanfeng Geng, Zhidan Yan
  • Patent number: 9316079
    Abstract: A flexible milling assembly for milling an orifice through a well casing. The milling assembly can include a drive yoke, and a plurality of straight and split yoke assemblies—all linked together and to a cutter head with universal blocks that enable the components to pivot relative to each other. A string of joint tubing connected to a prime mover on the surface is used to lower the milling assembly into a well and supply the driving torque. A split shoe coupled to a guide tube is positioned within the well casing where the orifice is to be milled. The milling assembly is guided through a curved passage within the split shoe to bring the cutter head into contact with the well casing. A protector assembly can be provided to enclose and protect the milling assembly when it is tripping into and out of the well casing.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: April 19, 2016
    Inventors: David Belew, Jack J. Kolle, Mark H. Marvin
  • Patent number: 9206649
    Abstract: Systems and methods for drilling a wellbore with a portion having a short radius of curvature. A drill assembly having a motor and a tubular housing. An actuator is at least partially disposed within the tubular housing and couples the motor to the tubular housing. The actuator is configured to selectively articulate the drill assembly between a straight configuration and a bent configuration. At least one torque anchor is fluidly-coupled to a trailing end of the drill assembly.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: December 8, 2015
    Assignee: Pine Tree Gas, LLC
    Inventor: Joseph A. Zupanick
  • Patent number: 9097083
    Abstract: A flexible milling assembly for milling an orifice through a well casing. The milling assembly can include a drive yoke, and a plurality of straight and split yoke assemblies—all linked together and to a cutter head with universal blocks that enable the components to pivot relative to each other. A string of joint tubing connected to a prime mover on the surface is used to lower the milling assembly into a well and supply the driving torque. A split shoe coupled to a guide tube is positioned within the well casing where the orifice is to be milled. The milling assembly is guided through a curved passage within the split shoe to bring the cutter head into contact with the well casing. A protector assembly can be provided to enclose and protect the milling assembly when it is tripping into and out of the well casing.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: August 4, 2015
    Inventors: David Belew, Jack J. Kolle, Mark H. Marvin
  • Publication number: 20150144401
    Abstract: A bottom hole assembly includes a drill string, a bit coupled to an end of the drill string, a rotary steerable system coupled to the drill string above the bit, a hydraulically actuated tool assembly coupled to the drill string above the rotary steerable system, and an electrically controlled tool coupled to the drill string above the hydraulically actuated tool assembly and electrically coupled to the rotary steerable system. A method includes running a bottom hole assembly downhole, the bottom hole assembly including a drill bit, a rotary steerable system, an electrically controlled tool, and a hydraulically actuated tool assembly disposed between the rotary steerable system and the electrically controlled tool. The method includes cutting a formation with the drill bit, actuating the hydraulically actuated tool assembly, and maintaining an electrical connection between the rotary steerable system and the electrically controlled tool during the running, the cutting, and the actuating.
    Type: Application
    Filed: November 24, 2014
    Publication date: May 28, 2015
    Inventors: Mahavir Nagaraj, John Michael Aubin, Renato Pereira, Bhushan Pendse, Francesco Vaghi
  • Publication number: 20150122548
    Abstract: The present invention provides a system and method for directional drilling of a borehole in a formation along a predetermined trajectory.
    Type: Application
    Filed: June 14, 2013
    Publication date: May 7, 2015
    Inventor: Pieter Van Nieuwkoop
  • Patent number: 8950512
    Abstract: A method and apparatus for estimating the instantaneous rotational speed of a bottom hole assembly at the lower end of a drill string. In one embodiment, a method includes driving the drill string by a drilling mechanism at the upper end of the drill string. A fundamental frequency of stick-slip oscillations suffered by the drill string is estimated. Variations in a drive torque of the drilling mechanism are determined. Known torsional compliance of the drill string is combined with the variations in the drive torque. An output signal representing the instantaneous rotational speed is provided.
    Type: Grant
    Filed: September 16, 2013
    Date of Patent: February 10, 2015
    Assignee: National Oilwell Varco, L.P.
    Inventors: Pal Jacob Nessjoen, Age Kyllingstad
  • Patent number: 8905159
    Abstract: A method, system and apparatus for steering a drill string employ, an eccentric steering device. The eccentric steering device may comprise an eccentric sleeve configured for mounting exterior to a portion of the drill string and permitting the drill string to rotate within the eccentric sleeve and a brake positioned to selectively cause rotation of the eccentric sleeve with the drill string. The eccentric steering device may further comprise one or more bearings positioned between the eccentric sleeve and the drill string.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: December 9, 2014
    Assignee: Schlumberger Technology Corporation
    Inventor: Geoffrey C. Downton
  • Patent number: 8881844
    Abstract: Disclosed herein is a system for steering the direction of a borehole advanced by cutting action of a rotary drill bit by periodically varying action of a drill bit while continuously rotating a drill string to which the drill bit is operationally attached. The steering system can include a bit perturbation device cooperating with a bent housing subsection and operationally connected to the drill string and to the drill bit. Drill bit action can be varied by periodically varying the rotation speed and/or rate of penetration of the drill bit. Periodic drill bit action results in preferential cutting of material from a predetermined arc of the borehole wall which, in turn, results in borehole deviation. Action of the drill bit can be varied independently of the rotation rate of the drill string.
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: November 11, 2014
    Assignee: Precision Energy Services, Inc.
    Inventors: Steven Reid Farley, Michael Louis Larronde, Roger P. Bartel, Charles Lee Mauldin, Robert Anthony Aiello
  • Publication number: 20140251695
    Abstract: A downhole motor for directional drilling includes a driveshaft assembly including a driveshaft housing and a driveshaft rotatably disposed within the driveshaft housing. In addition, the downhole motor includes a bearing assembly including a bearing housing and a bearing mandrel rotatably disposed within the bearing housing. The bearing mandrel has a first end directly connected to the driveshaft with a universal joint and a second end coupled to a drill bit. Further, the downhole motor includes an adjustment mandrel configured to adjust an acute deflection angle ? between the central axis of the bearing housing and the central axis of the driveshaft housing. The adjustment mandrel has a central axis coaxially aligned with the bearing housing, a first end coupled to the driveshaft housing, and a second end coupled to the bearing housing.
    Type: Application
    Filed: March 5, 2013
    Publication date: September 11, 2014
    Applicant: NATIONAL OILWELL VARCO, L.P.
    Inventor: National Oilwell Varco, L.P.
  • Publication number: 20140231136
    Abstract: A method and system for steering a rotary steerable tool in a borehole. A method includes rotating a deflection sleeve about a steerable shaft. A deflection ramp is aligned to deflect the shaft in a predetermined direction by the rotating. The deflection sleeve is axially displaced along the steerable shaft. The steerable shaft is deflected by the displacing.
    Type: Application
    Filed: March 30, 2011
    Publication date: August 21, 2014
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventor: Daniel Winslow
  • Publication number: 20140158427
    Abstract: A directional drilling tool is provided, which comprises a first end (2) attachable to a drill string, and a second end (4) attachable to a drill bit. A swivel section (6) is provided intermediate the first and second ends (2,4) and has a first swivel member (18) non-rotatably attached to the first end (2) and a second swivel member (20) rotatably coupled to the first swivel member (18) and rotatable relative thereto about a first axis of rotation which is co-axial with a longitudinal axis (LI) of the tool. A first actuator is adapted to selectively rotate the second swivel member (20) about the first axis of rotation.
    Type: Application
    Filed: July 15, 2012
    Publication date: June 12, 2014
    Inventors: Magdy Zaki, Waleed Ibrahim, Karim Aguib
  • Patent number: 8701795
    Abstract: A technique facilitates the drilling of deviated wellbores. A steerable drilling system is formed with a pair of components pivotably mounted with respect to each other. A removable strike ring is mounted to one of the steerable drilling system components and is positioned to engage a corresponding strike ring in a manner which limits the maximum pivot angle between the steerable drilling system components. By interchanging the removable strike ring with other removable strike rings, the maximum pivot angle can be adjusted in the field to accommodate drilling of a wider variety of deviated wellbores.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: April 22, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Christian Menger, Michael Pearce
  • Patent number: 8689906
    Abstract: A method and apparatus for estimating the instantaneous rotational speed of a bottom hole assembly at the lower end of a drill string. In one embodiment, a method includes driving the drill string by a drilling mechanism at the upper end of the drill string. A fundamental frequency of stick-slip oscillations suffered by the drill string is estimated. Variations in a drive torque of the drilling mechanism are determined. Known torsional compliance of the drill string is combined with the variations in the drive torque. An output signal representing the instantaneous rotational speed is provided.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: April 8, 2014
    Assignee: National Oilwell Varco, L.P.
    Inventors: Pal Jacob Nessjoen, Age Kyllingstad
  • Publication number: 20140083777
    Abstract: A rotary steerable tool has an inner mandrel having a longitudinal axis and an outer housing positioned along the inner mandrel. The outer housing rotates independently of the inner mandrel. The outer housing has an engagement member that moves axially relative to the outer housing and the inner mandrel between an extended position and a retracted position, and a transition surface having a slope relative to an outer surface of the outer housing. The engagement member moves along the transition surface between the extended position and the retracted position. In the engaged position, the engagement member extends outward from the outer housing to engage an inner surface of a well being drilled. An actuator selectively moves the engagement member along the transition surface from the retracted position to the extended position.
    Type: Application
    Filed: May 30, 2012
    Publication date: March 27, 2014
    Inventor: Alexandre Korchounov
  • Publication number: 20130319764
    Abstract: A drilling system for directional drilling of a borehole includes a biasing mechanism having a pivot associated with a lower bearing assembly, an offset mechanism associated with an upper radial bearing assembly, and a toolface controller, whereby the angular relationship of a drill bit and its toolface angle may be actively managed.
    Type: Application
    Filed: March 15, 2013
    Publication date: December 5, 2013
    Applicant: TELLUS OILFIELD, INC.
    Inventors: Stuart Schaaf, Marcus D. Wernig
  • Patent number: 8590638
    Abstract: A technique utilizes a monolithic wellbore propagation system to facilitate the drilling of deviated wellbores. A steerable drilling assembly is formed with a monolithic structure having both a bit body section and a steering body section. The steering body section comprises a cavity sized to receive a control system within the monolithic structure. Addition of the control system enables operational control over the steerable drilling assembly to facilitate formation of a desired, deviated wellbore section.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: November 26, 2013
    Assignee: Schlumberger Technology Corporation
    Inventor: Geoffrey C. Downton
  • Patent number: 8556002
    Abstract: This invention relates to a steering component, to a steering assembly, and to a method of steering a drill bit in a borehole. The steering component is adapted for connection to a drill string, the drill string carrying a drill bit and a motor for rotating the drill bit. The steering component comprises: a rotatable driveshaft adapted for connection between the drill bit and the motor; a drive mechanism; and an offsetting component; the drive mechanism providing a rotatable connection between the drill string and the offsetting component whereby the drill string can rotate relative to the offsetting component. The drive mechanism is adapted to drive the offsetting component to rotate in an opposed direction to the driveshaft, so as to counter the rotation of the offsetting component which is induced by friction within the componentry as the driveshaft rotates. The steering component and method are likely to have their greatest utility in steering a drill bit during drilling for oil and gas.
    Type: Grant
    Filed: October 15, 2012
    Date of Patent: October 15, 2013
    Assignee: Smart Stabilizer Systems Limited
    Inventors: Colin Walker, Daniel Brendan Crowley
  • Publication number: 20130228379
    Abstract: A drilling system has a drill string that is made up of tubular segments of coiled tubing joined together by connectors. The connectors can be selectively changed between locked and unlocked configurations. When in the unlocked configuration adjacent tubular segments rotate with respect to one another, and when in the locked configuration the tubular segments are rotationally affixed. The connectors include clutch members coupled to each tubular segment, that axially slide into a slot formed in an adjacent tubular segment to rotationally lock the adjacent segments. A Kelly bushing and rotary table rotate the drill string; and an injector head is used to insert the drill string through the Kelly bushing and rotary table and into a wellbore. While the drill string is inserted through the bushing and table, the connectors are set into the locked configuration so that all tubular segments from the rotary table downward are rotationally affixed.
    Type: Application
    Filed: March 1, 2013
    Publication date: September 5, 2013
    Applicant: SAUDI ARABIAN OIL COMPANY
    Inventor: Shaohua Zhou
  • Patent number: 8517121
    Abstract: A steerable drilling system comprising a bottom hole assembly (18) including an upper section (22) and a steering section (24), a swivel (26) permitting adjustment of the orientation of an axis of the steering section (24) relative to that of the upper section (22), a downhole motor operative to drive the steering section (24) for rotation relative to the upper section (22), and a plurality of actuators (34) operable to control the orientation of the axis of the steering section (24) relative to that of the upper section (22), the (actuators 34) being mounted upon one of the steering section (24) and the upper section (22,) a high speed sliding contact being formed between the actuators (34) and the other of the steering section (24) and the upper section (22).
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: August 27, 2013
    Assignee: Schlumberger Technology Corporation
    Inventor: Geoffrey C. Downton
  • Publication number: 20130168152
    Abstract: A downhole drilling apparatus includes an assembly having a longitudinal axis, wherein an output shaft of the assembly extends axially through a housing. A bearing assembly has first and second races, wherein a first set of bearing elements are disposed at a first angle relative to a top surface of the first race and a second set of bearing elements are disposed at a second angle relative to a top surface of the second race. The output shaft extends from an outlet of the housing at the angle defined by the bore.
    Type: Application
    Filed: June 29, 2010
    Publication date: July 4, 2013
    Applicant: Scientific Drilling International, Imc.
    Inventor: Massoud Panahi
  • Publication number: 20130037327
    Abstract: This invention relates to a steering component, to a steering assembly, and to a method of steering a drill bit in a borehole. The steering component is adapted for connection to a drill string, the drill string carrying a drill bit and a motor for rotating the drill bit. The steering component comprises: a rotatable driveshaft adapted for connection between the drill bit and the motor; a drive mechanism; and an offsetting component; the drive mechanism providing a rotatable connection between the drill string and the offsetting component whereby the drill string can rotate relative to the offsetting component. The drive mechanism is adapted to drive the offsetting component to rotate in an opposed direction to the driveshaft, so as to counter the rotation of the offsetting component which is induced by friction within the componentry as the driveshaft rotates. The steering component and method are likely to have their greatest utility in steering a drill bit during drilling for oil and gas.
    Type: Application
    Filed: October 15, 2012
    Publication date: February 14, 2013
    Applicant: SMART STABILIZER SYSTEMS LIMITED
    Inventor: Smart Stabilizer Systems Limited
  • Patent number: 8360174
    Abstract: A drilling assembly comprises a drill bit that includes a bit body intermediate a working face and a shank. An indenting member adapted to guide the drill bit protrudes from the working face. A flexible portion is disposed above the bit body.
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: January 29, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: David R. Hall, Paula Turner, David Lundgreen, Scott Woolston
  • Patent number: 8360172
    Abstract: An apparatus for drilling a wellbore may include a first section, a second section, and a third section, all of which are rotatably interconnected with pivot bearings and positioned along a drill string. The second section and the third section may be configured to form a controllable bend angle in the drill string. The first section, the second section, and the third section may be configured as sleeves that surround a portion of the drill string. One or more sections may include locking pads that selectively engage a wall of the wellbore. A hydraulic locking device for controlling a direction of rotation of the second section may include one or more brake elements and a reverse spinning sleeve. A first brake element may be used engage the reverse spinning sleeve and a second brake element may be used to engage a drive shaft.
    Type: Grant
    Filed: April 14, 2009
    Date of Patent: January 29, 2013
    Assignee: Baker Hughes Incorporated
    Inventor: Bernd Santelmann
  • Publication number: 20130000984
    Abstract: A technique facilitates the drilling of deviated wellbores. A steerable drilling system is formed with a pair of components pivotably mounted with respect to each other. A removable strike ring is mounted to one of the steerable drilling system components and is positioned to engage a corresponding strike ring in a manner which limits the maximum pivot angle between the steerable drilling system components. By interchanging the removable strike ring with other removable strike rings, the maximum pivot angle can be adjusted in the field to accommodate drilling of a wider variety of deviated wellbores.
    Type: Application
    Filed: June 29, 2011
    Publication date: January 3, 2013
    Inventors: CHRISTIAN MENGER, MICHAEL PEARCE
  • Patent number: 8322461
    Abstract: A drilling apparatus includes an upper drill string, a lower drill string including a rotary drilling motor, an orientable rotatable connection between the drill strings, a reactive torque control device associated with the orientable rotatable connection, an orientation sensing device for providing a sensed actual orientation of the lower drill string, and a feedback control system configured to actuate the control device in response to the sensed actual orientation to achieve a target orientation of the lower drill string. A drilling method includes actuating the control device to prevent relative rotation of the drill strings, providing a sensed actual orientation of the lower drill string, comparing the sensed actual orientation with a target orientation of the lower drill string, actuating the control device to allow the lower drill string to rotate to provide the target orientation, and actuating the control device to prevent relative rotation of the drill strings.
    Type: Grant
    Filed: November 4, 2008
    Date of Patent: December 4, 2012
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Richard T. Hay, Paul Botterell, Terence Schroter, Nathan Strilchuk
  • Publication number: 20120285746
    Abstract: A drill string section for directional drilling includes an outer casing which encases an adjustment mechanism for adjusting drilling direction and angular deflection during drilling. The adjustment mechanism has an outer shaft that is rotatably arranged relative to the outer casing and is configured with an axial eccentric first bore having a first bore axis that is parallel to the centre axis.
    Type: Application
    Filed: May 11, 2012
    Publication date: November 15, 2012
    Applicant: 2TD Drilling AS
    Inventor: Tore Kvalvik
  • Patent number: 8302705
    Abstract: A downhole steering system comprises a first full gauge stabilizer 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 stabilizers 34, 22. 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 stabilizer 22.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: November 6, 2012
    Assignee: Schlumberger Technology Corporation
    Inventor: Geoff Downton
  • Patent number: 8286732
    Abstract: This invention relates to a steering component, to a steering assembly, and to a method of steering a drill bit in a borehole. The steering component is adapted for connection to a drill string, the drill string carrying a drill bit and a motor for rotating the drill bit. The steering component comprises: a rotatable driveshaft adapted for connection between the drill bit and the motor; a drive mechanism; and an offsetting component; the drive mechanism providing a rotatable connection between the drill string and the offsetting component whereby the drill string can rotate relative to the offsetting component. The drive mechanism is adapted to drive the offsetting component to rotate in an opposed direction to the driveshaft, so as to counter the rotation of the offsetting component which is induced by friction within the componentry as the driveshaft rotates. The steering component and method are likely to have their greatest utility in steering a drill bit during drilling for oil and gas.
    Type: Grant
    Filed: June 8, 2009
    Date of Patent: October 16, 2012
    Assignee: Smart Stabilizer Systems Centre
    Inventors: Colin Walker, Daniel Brendon Crowley
  • Publication number: 20120255780
    Abstract: A method for correcting for tool face offset in directional drilling components, namely between a directional sensor reference point and a high side of a bent sub. Graduated markings applied on an outer surface of a UBHO sub containing the directional sensor and a reference marking on drill pipe indicating high side of the bent sub, or alternatively graduated markings applied to drill pipe relative to the high side of the bent sub and a reference marking on the outer surface of the UBHO, are together utilized to determine the tool face offset, which is then provided to a software program to permit the software programme to then indicate a correct bent sub angular orientation to the directional drilling operator at surface. Bottom hole components utilizing graduated markings on one of such bottom hole components and having a reference marking on the other of the components, are also disclosed.
    Type: Application
    Filed: April 7, 2011
    Publication date: October 11, 2012
    Inventor: Axel Schmidt
  • Patent number: 8235146
    Abstract: The present invention recites a method and apparatus, wherein said methods and apparatus comprises an actuator comprising a first plate, a pocket extending through the first plate, the pocket in fluid communication with a pressurized fluid source and a second plate coupled to a component that is to be actuated, wherein the first plate, the second plate, and the pocket are dimensioned such that when a pressurized fluid is discharged through the pocket, the velocity of the fluid through a gap between the first plate and the second plate creates a pressure drop sufficient to pull the second plate toward the first plate.
    Type: Grant
    Filed: December 11, 2009
    Date of Patent: August 7, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Kjell Haugvaldstad, Ashley Johnson, Geoffrey C. Downton, Walter David Aldred, Frank F. Espinosa, Benjamin Jeffryes, Riadh Boualleg, Michael Paul Barrett
  • Publication number: 20120145462
    Abstract: A system and method facilitate directional drilling. The technique employs an orienting tool which may be connected into a coiled tubing drilling system to selectively orient a drilling assembly. The orienting tool is able to cause relative rotation of an outer housing to orientate a tool face. The relative rotation is facilitated by utilizing floating members, such as a floating piston and a floating nut, in the internal orientation assembly. The floating member or members are decoupled in a radial direction to better facilitate the relative rotation of the housing with respect to components of the internal orientation assembly.
    Type: Application
    Filed: November 29, 2011
    Publication date: June 14, 2012
    Inventors: Larry J. Leising, Troy Nason
  • Patent number: 8157025
    Abstract: A drive connection for a downhole drilling motor includes a tubular outer housing with an inner mandrel. The outer housing has a motor end, a bit end and defines an interior bore. An angular offset is provided toward the bit end of the outer housing. The inner mandrel, positioned within the interior bore of the outer housing, includes a motor end section, a bit end section and an intermediate section connecting the motor end section and the bit end section. The intermediate section has an upper articulating engagement that is coupled to rotate with the motor end section and a lower articulating engagement that is coupled to rotate with the bit end section. The motor end section, intermediate section and bit end section rotate together, with the upper articulating engagement and the lower articulating engagement accommodating rotation that is offset due to the angular offset.
    Type: Grant
    Filed: May 15, 2009
    Date of Patent: April 17, 2012
    Inventor: Orren S. Johnson
  • Publication number: 20120067648
    Abstract: A technique utilizes a monolithic wellbore propagation system to facilitate the drilling of deviated wellbores. A steerable drilling assembly is formed with a monolithic structure having both a bit body section and a steering body section. The steering body section comprises a cavity sized to receive a control system within the monolithic structure. Addition of the control system enables operational control over the steerable drilling assembly to facilitate formation of a desired, deviated wellbore section.
    Type: Application
    Filed: September 21, 2010
    Publication date: March 22, 2012
    Inventor: GEOFFREY C. DOWNTON
  • Publication number: 20120000709
    Abstract: Disclosed herein is a system for steering the direction of a borehole advanced by cutting action of a rotary drill bit by periodically varying action of a drill bit while continuously rotating a drill string to which the drill bit is operationally attached. The steering system can include a bit perturbation device cooperating with a bent housing subsection and operationally connected to the drill string and to the drill bit. Drill bit action can be varied by periodically varying the rotation speed and/or rate of penetration of the drill bit. Periodic drill bit action results in preferential cutting of material from a predetermined arc of the borehole wall which, in turn, results in borehole deviation. Action of the drill bit can be varied independently of the rotation rate of the drill string.
    Type: Application
    Filed: September 14, 2011
    Publication date: January 5, 2012
    Applicant: PRECISION ENERGY SERVICES, INC.
    Inventors: Steven Reid Farley, Michael Louis Larronde, Roger P. Bartel, Charles Lee Mauldin, Robert Anthony Aiello
  • Publication number: 20110290561
    Abstract: A method for forming lateral boreholes from an existing parent wellbore is provided. The wellbore has been completed with a string of production casing. The method generally comprises providing a downhole tool assembly having a whipstock. The method also includes running the assembly down into the parent wellbore. A force is applied to the assembly to cause the whipstock to rotate within the wellbore into an operating position. In this position, a curved face of the whipstock forms a bend-radius substantially across the inner diameter of the casing. A jetting hose is run into the wellbore. Upon contact with the curved face of the whipstock, the jetting hose is re-directed through a window in the production casing. Hydraulic fluid is injected under pressure through the hose to provide hydraulic jetting. The hose is directed through the window and into the formation to create a lateral borehole extending many feet outwardly into a subsurface formation.
    Type: Application
    Filed: August 5, 2011
    Publication date: December 1, 2011
    Inventors: Bruce L. Randall, Michael J. Brogdin, David Brisco
  • Publication number: 20110266062
    Abstract: A drill rod is disclosed. The drill rod includes a casing assembly defining a length that extends axially between a first end and an opposite second end of the drill rod, and a drive shaft rotatably mounted within the casing assembly. The drive shaft extends axially along the drill rod generally from the first end of the casing assembly to the second end of the casing assembly. The drill rod also includes latching pins at the first end of the drill rod and latching pin receivers at the second end of the drill rod. The drill rod further includes latches provided adjacent the latching pin receivers. The latches are movable between latching and non-latching positions. The latches move along an orientation of movement then the latches between the latching and non-latching positions. The drill rod may also include biasing structures that apply retention forces to the latches for retaining the latches in the non-latching position.
    Type: Application
    Filed: April 6, 2011
    Publication date: November 3, 2011
    Inventors: Robert Hoch Shuman, V, Douglas Eugene See, JR., Stuart Ronald Harrison, Jeffrey James Utter, Matthew Arlen Mills
  • Publication number: 20110203847
    Abstract: A method for forming multiple lateral boreholes from an existing wellbore is provided. The wellbore has been completed with a string of production casing. The wellbore may have a slimhole region having an inner diameter that is less than the inner diameter of the production casing. The method generally comprises providing a downhole apparatus having a whipstock. The whipstock may be a single piece tool that rotates into position below the slimhole region, or it may be a two piece tool comprising a top whipstock member and a separate bottom whipstock member. The whipstock has a curved face. The method also includes running the apparatus down into the parent wellbore. A force is applied to the apparatus to cause the whipstock to rotate within the wellbore into an operating position. In this position, the curved face of the whipstock forms a bend-radius that allows the jetting hose to bend across the entire inner diameter of the production casing. A jetting hose is run into the wellbore.
    Type: Application
    Filed: February 23, 2011
    Publication date: August 25, 2011
    Inventors: Bruce L. Randall, Michael J. Brogdin
  • Publication number: 20110139513
    Abstract: The present invention recites a method, system and apparatus for steering a drill string, wherein an eccentric steering device is recited. The eccentric steering device may comprise an eccentric sleeve configured for mounting exterior to a portion of the drill string and permitting the drill string to rotate within the eccentric sleeve and a brake positioned to selectively cause rotation of the eccentric sleeve with the drill string. In one embodiment, the eccentric steering device may further comprise one or more bearings positioned between the eccentric sleeve and the drill string.
    Type: Application
    Filed: December 15, 2009
    Publication date: June 16, 2011
    Inventor: GEOFFREY C. DOWNTON
  • Publication number: 20110108327
    Abstract: Disclosed herein is a system for steering the direction of a borehole advanced by cutting action of a rotary drill bit by periodically varying action of a drill bit while continuously rotating a drill string to which the drill bit is operationally attached. The steering system can include a bit perturbation device cooperating with a bent housing subsection and operationally connected to the drill string and to the drill bit. Drill bit action can be varied by periodically varying the rotation speed and/or rate of penetration of the drill bit. Periodic drill bit action results in preferential cutting of material from a predetermined arc of the borehole wall which, in turn, results in borehole deviation. Action of the drill bit can be varied independently of the rotation rate of the drill string.
    Type: Application
    Filed: January 7, 2011
    Publication date: May 12, 2011
    Applicant: Precision Energy Services, Inc.
    Inventors: Steven Reid Farley, Michael Louis Larronde, Roger P. Bartel, Charles Lee Mauldin, Robert Anthony Aiello
  • Patent number: 7882904
    Abstract: An apparatus for controlling the direction of drill bit within a wellbore. The apparatus comprises a first housing with a first housing axis therein, and wherein the first housing has a first threaded opening having a first threaded opening axis. The first housing has a helical end. A second housing is included, and the second housing contains a second housing axis, and a second threaded opening having a second threaded opening axis configured to engage with the first threaded opening. A collar is included that has a helical collar end that engages the helical collar end and wherein the helical collar end is configured reciprocal to the helical end, and rotational displacement of the first housing relative to the collar will angularly displace the drill bit axis. The apparatus may further include spline members for locking the collar in place relative to the first and second housing.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: February 8, 2011
    Assignee: Ashmin, LC
    Inventors: Gunther H H von Gynz-Rekowski, William Christian Herben, Daryl Elliot Bolejack
  • Publication number: 20100282517
    Abstract: The invention relates to a system for the overground operation of underground sewer tools, especially of expander and pulling heads comprising a rod assembly that is rigid when pushed and a supporting device absorbing shear or tractive forces.
    Type: Application
    Filed: April 3, 2008
    Publication date: November 11, 2010
    Applicant: Tracto-Technik GmbH & Co. KG
    Inventor: Franz-Josef Puttmann
  • Patent number: 7810582
    Abstract: An electrical generating system is used for a horizontal directional drilling system. The drilling system has a generally horizontal drill stem that rotates. A generator has first and second components. The first component rotates with the drill stem, while the second component is able to rotate with respect to the first component. An eccentric mass is rotatably mounted inside of the drill stem and is coupled to the second component, wherein as the drill stem rotates, relative rotational motion is produced between the first and second components and the generator produces electrical power. The eccentric mass is mounted on two spaced apart mounting points inside of the drill stem. The generator provides power to a sonde. The generator is in a housing which has flow channels that allow drilling fluid to flow through the drill stem.
    Type: Grant
    Filed: November 17, 2008
    Date of Patent: October 12, 2010
    Inventor: Charles T. Webb
  • Publication number: 20100133012
    Abstract: A wellbore servicing apparatus, comprising a first mandrel movable longitudinally along a central axis and rotatable about the central axis, an orienting member configured to selectively interfere with movement of the first mandrel along the central axis, and a second mandrel connected to the first mandrel and configured to rotate about the central axis when the first mandrel rotates about the central axis. A method of orienting a wellbore servicing tool, comprising connecting an orienting tool to the wellbore servicing tool, identifying a predetermined direction, increasing a pressure within the orienting tool, rotating a portion of the orienting tool in response to the increase in pressure within the orienting tool, and rotating the wellbore servicing tool in response to the rotating of the portion of the orienting tool.
    Type: Application
    Filed: December 3, 2008
    Publication date: June 3, 2010
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Robert Howard, Robert Pipkin, Iosif Hriscu
  • Patent number: 7721826
    Abstract: In one aspect of the invention, a drill string comprises a drill bit with a body intermediate a shank and a working face, and the working face comprises at least one cutting element. A jack assembly is disposed within the drill bit body and comprises a jack element disposed on a distal end of the assembly. The jack element substantially protrudes from the working face and is adapted to move with respect to the bit body. At least one position feedback sensor is disposed proximate the jack assembly and is adapted to detect a position and/or orientation of the jack element.
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: May 25, 2010
    Assignee: Schlumberger Technology Corporation
    Inventors: David R. Hall, David Lundgreen, Jim Shumway, Nathan Nelson, Daryl Wise, Paula Turner
  • Patent number: 7717472
    Abstract: A method of locking tubular components in end to end relation. A first tubular body is provided having a tongue with an outwardly facing groove protruding past one end along an interior surface that has a keyway. A second tubular body is provided having a tongue with an inwardly facing groove protruding past one end along an exterior surface. A split ring is positioned in the grooves to connect the bodies. The split ring has a tapered outer surface to permit removal by an axial force. A tubular insert carries a locking key which engages the axial keyway. When the tubular insert is fully inserted into the first tubular body, the key underlies the split ring and prevents the split ring from having sufficient clearance to be withdrawn.
    Type: Grant
    Filed: February 6, 2007
    Date of Patent: May 18, 2010
    Inventor: Orren Johnson
  • Patent number: 7669671
    Abstract: In one aspect of the invention a downhole tool string component has a segmented sleeve slideably attached over the exterior of a mandrel which is adapted for connection to an adjacent tool string component. An end of the sleeve is abutted against a shoulder element of the mandrel and an opposite end of the sleeve is axially loaded by a threaded element attached to the mandrel. The sleeve comprises at least one sleeve segment with an engagement end comprising at least one axial anti-rotation assembly adapted to transfer torque to an adjacent sleeve segment, the shoulder element, or the threaded element.
    Type: Grant
    Filed: August 20, 2007
    Date of Patent: March 2, 2010
    Inventors: David R. Hall, Paula Turner, Nathan Nelson
  • Patent number: 7661488
    Abstract: A device for drilling controlled directional wells comprises a central hollow element and three hollow tubular elements connected thereto out-of-line with respect to each other. The first hollow tubular element connected by a thread to the spindle and the central hollow element, are each provided with a contact segmental section, thereby forming a pair of contact segmental sections. The sections are disposed on the opposite sides with respect to the meridian plane of the spindle in the bending plane of the drill string and at a distance L between the nearest edges of the contact segmental sections along the central axis of the first element. L?D, where D is the spindle outer diameter. The contact segmental section of the first element is deviated from the meridian plane of the spindle in the bending plane of the drilling string in an opposite direction with respect to the reaction torque of a drilling bit.
    Type: Grant
    Filed: February 3, 2004
    Date of Patent: February 16, 2010
    Assignee: Obschestvo S Ogranichennoi Otvetstvennostyu'Tirma “Radius-Servis”
    Inventors: Vladimir Nikolaevich Andoskin, Konstantin Anatolievich Kobelev, Vladimir Ivanovich Timofeev
  • Patent number: RE41759
    Abstract: A lockable swivel (4) for use in drilling applications which allows the operator to selectively engage and disengage the swivel (4). The lockable swivel (4) is comprised of a locking mandrel (7) carried in a body (3) which engages, upon actuation, splined surfaces (20, 21) within the swivel mandrel (5) thereby locking the two together. Various methods for the use of the lockable swivel (4) in wireline and other drilling operations are demonstrated.
    Type: Grant
    Filed: December 27, 1997
    Date of Patent: September 28, 2010
    Inventor: Charles M. Helms