Normally Curved Guide Or Shaft Patents (Class 175/75)
  • Patent number: 9592064
    Abstract: A targeting device for guiding a drill arrangement for forming an arc-shaped bore in an assembly of adjacent bones or bone fragments, comprises a support frame, a pivoting device mounted to the support frame and arranged to receive the drill arrangement and to allow a pivoting movement of the drill arrangement along an arc-shaped path having a predetermined radius of curvature rc around a pivot axis. The support frame is provided with at least three fixation devices each configured to fix a bone or bone fragment of the bone assembly to define a fixed position in space of the bone assembly with respect to the pivoting device when the bone assembly is installed on the support frame.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: March 14, 2017
    Assignee: Biedermann Technologies GmbH & Co. KG
    Inventors: Lutz Biedermann, Wilfried Matthis, Tobias Hägle, Kaj Klaue
  • Patent number: 9494030
    Abstract: A system and method for surface steerable drilling are provided. In one example, the method includes monitoring operating parameters for drilling rig equipment and bottom hole assembly (BHA) equipment for a BHA, where the operating parameters control the drilling rig equipment and BHA equipment. The method includes receiving current inputs corresponding to performance data of the drilling rig equipment and BHA equipment during a drilling operation and determining that an amount of change between the current inputs and corresponding previously received inputs exceeds a defined threshold. The method further includes determining whether a modification to the operating parameters has occurred that would result in the amount of change exceeding the defined threshold and identifying that a problem exists in at least one of the drilling rig equipment and BHA equipment if no modification has occurred to the operating parameters. The method includes performing a defined action if a problem exists.
    Type: Grant
    Filed: June 25, 2014
    Date of Patent: November 15, 2016
    Assignee: Motive Drilling Technologies Inc.
    Inventors: Todd W. Benson, Teddy C. Chen
  • Patent number: 9383246
    Abstract: The present invention relates to a guided wave radar level gauge comprising a transceiver, processing circuitry and a single conductor probe comprising at least two elongate probe sections. A connector extending from a first end of the probe section comprises: an abutment portion having a diameter smaller than a diameter of the probe section, an intermediate portion, having a diameter smaller than the abutment portion, arranged between the probe section and the abutment portion and an outside threaded portion. A second end portion of the probe section comprises a sleeve comprising an inside threaded receiving portion receiving the connector; a passage through a sidewall of the sleeve being located off-center in relation to a longitudinal central axis of the probe section. The probe further comprises a locking pin to be arranged in the passage locking two assembled probe sections by limiting movement of the abutment portion in a longitudinal direction.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: July 5, 2016
    Assignee: ROSEMOUNT TANK RADAR AB
    Inventor: Bengt Hagglund
  • Patent number: 9347272
    Abstract: A method of forming a supported subterranean well bore in which, in one disclosed embodiment, a first drill bit is mounted on a first string of casing tubulars via a steerable tool, and the drill bit is used to form a first bore. Upon reaching the required depth the casing string is cemented in place to support the formed bore and a second drill bit is mounted on a second casing string and is inserted into the first casing string. The second drill bit is used to drill through the wall of the first casing string and proceed to form a second, deeper bore. Once the second drill bit has reached the required depth, the second casing string is cemented in place to support the second bore.
    Type: Grant
    Filed: May 16, 2008
    Date of Patent: May 24, 2016
    Assignee: Technology Ventures International Limited
    Inventors: James A. Hewson, Philip M. Burge
  • Patent number: 9277929
    Abstract: Disclosed is an apparatus for forming an arcuate channel in one or more segments of a bone, bony structure or adjacent vertebrae of a spine. The apparatus includes, inter alia, a base member which is positioned proximate to the surgical site, a support arm extending proximally from the base member, an arcuate guide member and a drill assembly. The arcuate guide member is slidably mounted to the support arm. The drill assembly is operatively coupled to the support arm and includes a drill bit attached to the distal end of a flexible drive cable. The flexible drive cable extends axially along the support arm and is axially and rotationally movable with respect thereto. The drill bit is operatively coupled to an end of the arcuate guide member such that when the drill assembly is moved distally, the arcuate guide member slides with respect to the support arm and forces the drill bit to traverse an arcuate path.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: March 8, 2016
    Assignee: K2M, Inc.
    Inventors: Allen Carl, Josef K. Winkler, Robert Floyd Beisel, Spanky Allen Raymond, Daniel Stephen Savage, Jason John Gromek, Carl Michael Nilsson
  • Patent number: 9194185
    Abstract: The invention relates to a guide device for a drilling device, comprising a housing having deflection means for generating a side force, and a shaft rotatably supported within the housing, wherein the shaft comprises connection means at a first end for connecting to a drilling rod, and connection means at a second end for connecting to a drilling head, and wherein coupling means are provided for connecting the shaft to the housing in a rotationally fixed manner as needed.
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: November 24, 2015
    Assignee: TRACTO-TECHNIK GMBH & CO. KG
    Inventors: Frank Göcke, Joachim Schmidt, Elmar Koch, Sebastian Fischer
  • Patent number: 8997895
    Abstract: A system and method to facilitate the drilling of one or more lateral wellbores while eliminating one or more trips downhole. The system utilizes a drilling assembly comprising an impregnated drill bit or other suitable drill bit. The impregnated drill bit is coupled to a whipstock by a connector for deployment downhole in a single trip. The connector comprises a separation device which facilitates disconnection of the impregnated drill bit from the whipstock once the whipstock is anchored at a desired downhole location.
    Type: Grant
    Filed: April 14, 2012
    Date of Patent: April 7, 2015
    Assignee: Smith International, Inc.
    Inventors: Shantanu N. Swadi, Philip M. Gregurek, Kenneth M. Nevlud, Charles H. Dewey, Michael G. Azar
  • Publication number: 20150060140
    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: November 9, 2014
    Publication date: March 5, 2015
    Inventor: Geoff Downton
  • Patent number: 8925651
    Abstract: A system and method for hydraulic drilling is provided. A whipstock having a bore can be sealingly engaged at a distal end of a workstring. A drilling apparatus having drill tubing and a flow through device for routing drilling fluid into the drill tubing can be connected to the end of a connection string and inserted down into the work string so that the drill tubing extends through the bore in the whipstock device. Pressurized drilling fluid can then be inserted into the annulus formed between the work string and the connection string so that the pressurized drilling fluid passes through the flow through device into the drilling tube and is discharged out the distal end of the drilling tube as a cutting jet.
    Type: Grant
    Filed: May 13, 2009
    Date of Patent: January 6, 2015
    Assignee: Petrojet Canada, Inc.
    Inventors: Myles McDougall, Jeremy Nielsen, Carl Tatman
  • Patent number: 8910729
    Abstract: An apparatus for drilling a hole in the ground has a hammer drill installed at a bottom of a rod assembled in multi-stages at support structure on the ground. The hammer drill has a pilot hammer drill and a reamer hammer drill coupled to each other through a key structure formed in the vertical direction so as to allow simultaneous rotations and up-and-down movements relative to each other.
    Type: Grant
    Filed: April 14, 2010
    Date of Patent: December 16, 2014
    Assignee: Core Geotechnics Co., Ltd.
    Inventor: Sun Keun Park
  • Patent number: 8881845
    Abstract: A method of milling a window through a casing in a primary well bore and drilling a sidetracked well bore into a formation including running a drilling assembly including a body having an axis defined therethrough, a piston that is movable within a cavity formed in the body, a stationary cutting structure coupled to the body, and a movable cutting structure coupled to the body, milling a window through the casing in a first trip into the primary well bore, drilling the sidetracked well bore in the first trip into the primary well bore, applying a differential pressure across the piston, and moving the movable cutting structure from the collapsed position to the expanded position. The movable cutting structure is coupled to the piston and is movable between a collapsed position and an expanded position.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: November 11, 2014
    Assignee: Smith International, Inc.
    Inventors: Charles H. Dewey, Praful C. Desai, John E. Campbell
  • Publication number: 20140246241
    Abstract: A whipstock is supported adjacent the lower end of a string during the drilling of the lateral. It has no integrated anchor. The BHA is delivered through the string that supports the whipstock. After a lateral is drilled the BHA is retracted and the support string is manipulated to advance the whipstock to a new location for proper orientation with a gyroscopic tool. The BHA is then advanced through the support string for drilling of another lateral in the same trip in the hole. The process can be repeated as many times as needed. Peripheral pads on the lower end of the whipstock push the lower end of the whipstock ramp to the borehole wall for proper tracking of the lateral. The laterals can be in open or cased hole and the support string can have circulation ports near the whipstock to cool the BHA in geothermal wells.
    Type: Application
    Filed: March 1, 2013
    Publication date: September 4, 2014
    Applicant: BAKER HUGHES INCORPORATED
    Inventor: Ronald D. Phillips
  • Patent number: 8820440
    Abstract: In one aspect of the present invention, a steering assembly for downhole directional drilling comprises an outer bit comprising a bore and an outer cutting area and in inner bit comprising an inner cutting area and connected to a shaft that is disposed within the bore. At least one biasing mechanism is disposed around the shaft. At least one fluid channel is disposed within the outer bit and redirects fluid to the at least one biasing mechanism causing the at least one biasing mechanism to push the shaft and alter an axis of the inner bit with respect to an axis of the outer bit.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: September 2, 2014
    Inventors: David R. Hall, Scott Dahlgren, Jonathan Marshall
  • Patent number: 8813856
    Abstract: A method and apparatus for selectively reciprocating a downhole device in a wellbore relative to an upper portion of production tubing, so that the upper portion of production tubing does not need to be lifted to operate the downhole device. A shift tool between the upper production tubing and the deflector assembly is designed to lift a deflector assembly independently of the upper production tubing. The shift tool is operated by pressurized fluid delivered from the surface, for example with a fluid-delivery device on the end of coiled tubing lowered through the production tubing.
    Type: Grant
    Filed: April 15, 2011
    Date of Patent: August 26, 2014
    Inventors: Charles Brunet, Michel Bouchard, Kevin Mazarac
  • Publication number: 20140182941
    Abstract: In one aspect, an apparatus for use in a wellbore is disclosed that in one embodiment includes a tool having a rotating member adapted to be coupled to a drill bit and a steering device that includes a force application device that tilts the drive member and a rotational drive that maintains the force application device geostationary.
    Type: Application
    Filed: December 28, 2012
    Publication date: July 3, 2014
    Applicant: Baker Hughes Incorporated
    Inventor: Hans Oppelaar
  • Patent number: 8746370
    Abstract: A horizontal direction drilling system comprises a power pack coupled to a source of compressed air and a water reservoir and forms a mixture of compressed air, water, and oil. The horizontal direction drilling system further comprises a steerable horizontal drill. The steerable horizontal drill includes an air powered reciprocating hammer, and a drill head. The steerable horizontal drill receives the mixture to power the reciprocating hammer. The drill head includes a drill face and the mixture exits the steerable horizontal drill through the drill face.
    Type: Grant
    Filed: June 11, 2012
    Date of Patent: June 10, 2014
    Assignee: Pioneer One, Inc.
    Inventor: Michael E. Montgomery
  • Publication number: 20140060935
    Abstract: A method for forming a controllable bend angle in a drill string in a wellbore comprises attaching an upper housing to a drill string. At least, one drive motor is anchored in the upper housing. A middle housing is operably coupled to the at least one drive motor. A lower housing is operably coupled to the at least one drive motor. The at least one drive motor is controllably operated to rotate the middle housing by a first rotation angle with respect to the upper housing, and to rotate the lower housing by a second rotation angle with respect to the upper housing, to generate a desired bend angle between the middle housing and the lower housing at a target toolface orientation between the bend angle and the upper housing.
    Type: Application
    Filed: May 13, 2011
    Publication date: March 6, 2014
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Daniel M. Winslow, Neelesh Deolalikar
  • 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: 8561722
    Abstract: A method of controllably milling a window in at least a portion of a cased wellbore comprises: interconnecting a mill advancing device and a mill; applying a pressure differential between the mill advancing device and the mill, wherein the application of the pressure differential causes a downward movement of the mill advancing device and the mill; and causing the mill to engage the at least a portion of the cased wellbore.
    Type: Grant
    Filed: August 21, 2012
    Date of Patent: October 22, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Joseph Parlin
  • 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: 20130240268
    Abstract: This invention relates to a controllable deflection tool. The controllable deflection tool is likely to have its greatest utility as part of a downhole assembly to steer a drill bit during drilling for oil and gas. There is provided a controllable deflection tool having a first end and a second end, the tool having: a conduit for a working fluid; a rotary element adapted for rotation within the tool; a deflection member; a vane motor configured to rotate the deflection member relative to the rotary element; and a valve for controlling the flow of working fluid to the vane motor. There is also provided a downhole steering assembly and a method of steering a downhole drilling assembly incorporating the controllable deflection tool.
    Type: Application
    Filed: March 13, 2013
    Publication date: September 19, 2013
    Applicant: Smart Stabilizer Systems Limited
    Inventors: Daniel Brendan Crowley, Colin Walker
  • Patent number: 8528644
    Abstract: An apparatus and method for improving control over the milling force applied to a milling bit that is turned through a rotary drive to form a hole in a wellbore casing. A bit-weighting sub is applied between the tubing used to lower the rotary drive's motor into the wellbore and the rotary drive itself, the sub serving to take the weight of the tubing off the rotary drive when the motor lands in operative connection with the drive, and further serving to apply a known milling force to the drive (and thus to the bit) independent of the weight of the tubing. In a preferred form the sub includes a spring that is compressed against the drive when the tubing and motor are landed.
    Type: Grant
    Filed: October 21, 2008
    Date of Patent: September 10, 2013
    Assignee: Radjet LLC
    Inventors: Charles Brunet, Michel Bouchard
  • 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
  • Patent number: 8430187
    Abstract: Drilling a sidetrack wellbore out of the side of an existing wellbore utilizing a drillable billet having a path formed in the billet to lead a bi-centered drillbit to kick-out from the wellbore and form a sidetrack wellbore. The bi-centered bit is arranged for the lands of the pilot section to follow the path of the billet while the wings of the ream out a portion of the billet and also ream out the earth to form the full dimension sidetrack wellbore. The bi-centered bit is used to drill the sidetrack wellbore to the target zone so that the entire drilling process extends from the existing wellbore to the target zone without a mandatory withdrawal of the drillstring from the wellbore.
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: April 30, 2013
    Assignee: ConocoPhillips Company
    Inventor: David D. Hearn
  • Patent number: 8327944
    Abstract: An assembly is provided to attach a whipstock to a mill/drill bit. The assembly includes an upper collar adapted for installation around a shank of the mill/drill bit. At least one connecting member is mounted at a first end to the upper collar. The connecting member extends downwardly from the upper collar and is adapted to fit within a junkslot of the mill/drill bit to which the upper collar is attached. A whipstock attachment structure is mounted to a second end of the at least one connecting member.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: December 11, 2012
    Assignee: Varel International, Ind., L.P.
    Inventors: William W. King, Michael R. Reese, Steven W. Drews
  • 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
  • Publication number: 20120261193
    Abstract: A system and method to facilitate the drilling of one or more lateral wellbores while eliminating one or more trips downhole. The system utilizes a drilling assembly comprising an impregnated drill bit or other suitable drill bit. The impregnated drill bit is coupled to a whipstock by a connector for deployment downhole in a single trip. The connector comprises a separation device which facilitates disconnection of the impregnated drill bit from the whipstock once the whipstock is anchored at a desired downhole location.
    Type: Application
    Filed: April 14, 2012
    Publication date: October 18, 2012
    Inventors: Shantanu N. Swadi, Philip M. Gregurek, Kenneth M. Nevlud, Charles H. Dewey, Michael G. Azar
  • 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: 20120255785
    Abstract: A system and method facilitate drilling of a lateral wellbore by eliminating one or more trips downhole. The system comprises a drill bit optimized for the drilling operation. The drill bit is coupled to a whipstock via a connector, which minimizes interference with the cutting elements of the drill bit. The connector includes a separation device which facilitates disconnection of the drill bit from the whipstock after the whipstock is anchored at a desired downhole location. The separation device is disposed in the connector to minimize the remaining portions of the connector existing after separation of the drill bit from the whipstock which must be milled by the drill bit prior to drilling the lateral wellbore.
    Type: Application
    Filed: April 5, 2012
    Publication date: October 11, 2012
    Inventors: Philip M. Gregurek, Shantanu N. Swadi, Charles H. Dewey, Shelton W. Alsup
  • Patent number: 8267199
    Abstract: Apparatus and method for drilling perforations in well casing and drainholes into a subterranean formation around a well are provided. A tool body on tubing directs a mechanical cutter or jet bit to the casing. A hole is cut in casing and a rotary detent mechanism may be used to drill additional holes through casing to enable alignment of a jet bit with the holes for drilling drainholes without removing apparatus from the well. Disposable nozzles in a guide channel or nozzles on the tool body may be used for drilling through casing.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: September 18, 2012
    Assignee: Buckman Jet Drilling
    Inventors: William G. Buckman, Sr., William C. Maurer, Zachary D. Pearl
  • Patent number: 8267198
    Abstract: A tool body on tubing directs a mechanical cutter or jet bit to the casing. A hole is cut in casing and a rotary detent mechanism may be used to drill additional holes through casing and enable alignment of a jet bit with the holes for drilling drainholes without removing apparatus from the well. Disposable nozzles in a guide channel or nozzles on the tool body may be used for drilling through casing.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: September 18, 2012
    Assignee: Buckman Jet Drilling
    Inventors: William G. Buckman, Sr., William C. Maurer, Zachary D. Pearl
  • Patent number: 8196680
    Abstract: A tool body on tubing directs a mechanical cutter or jet bit to the casing in an oil or gas well. A hole is cut in casing and a rotary detent mechanism may be used to drill additional holes through casing and enable alignment of a jet bit with the holes for drilling drainholes without removing apparatus from the well. Disposable nozzles in a guide channel or nozzles on the tool body may be used for drilling through casing.
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: June 12, 2012
    Assignee: Buckman Jet Drilling
    Inventors: William G. Buckman, Sr., William C. Maurer, Zachary D. Pearl
  • Patent number: 8186458
    Abstract: A method of milling a window through a casing in a primary well bore and drilling an enlarged sidetracked well bore comprises running into the primary well bore a drilling assembly comprising at least one cutting apparatus adapted to drill an enlarged borehole, milling a window through the casing, and drilling the enlarged sidetracked well bore, wherein the milling and drilling steps are performed in one trip into the primary well bore. A drilling assembly comprises at least one cutting apparatus operable to drill an enlarged borehole, wherein the drilling assembly is operable to mill a window through a casing in a primary well bore and drill an enlarged sidetracked well bore through the window in one trip into the primary well bore.
    Type: Grant
    Filed: July 6, 2005
    Date of Patent: May 29, 2012
    Assignee: Smith International, Inc.
    Inventors: Charles H. Dewey, Praful C. Desai, John E. Campbell
  • Publication number: 20120125690
    Abstract: The invention relates to an ice worthy jack-up rig that may extend the drilling season in shallow water off shore Arctic or ice prone locations. The inventive rig would work like a conventional jack-up rig while in open water with the hull jacked up out of the water. However, in the event of ice conditions, the legs are held in place by cans embedded in the sea floor to resist lateral movement of the rig and the hull is lowered into the water into an ice defensive configuration. The hull is specifically shaped with an ice-bending surface to bend and break up ice that comes in contact with the hull while in the ice defensive configuration.
    Type: Application
    Filed: October 21, 2011
    Publication date: May 24, 2012
    Applicant: ConocoPhillips Company
    Inventors: Peter G. Noble, Randall S. Shafer, Dominique P. Berta
  • Publication number: 20120111636
    Abstract: Assemblies can be disposed in a subterranean bore. An assembly can include a surface that can divert a cutting tool for creating a branch wellbore and that can divert a completion component for completing the branch wellbore without requiring the assembly or part of the assembly from being removed from a parent wellbore prior to the completion component being diverted.
    Type: Application
    Filed: November 4, 2010
    Publication date: May 10, 2012
    Applicant: HALLIBURTON ENERGY SERVICES, INC
    Inventors: David Joe Steele, Aditya Shailesh Deshmukh
  • Publication number: 20120080234
    Abstract: In one aspect of the present invention, a steering assembly for downhole directional drilling comprises an outer bit comprising a bore and an outer cutting area and in inner bit comprising an inner cutting area and connected to a shaft that is disposed within the bore. At least one biasing mechanism is disposed around the shaft. At least one fluid channel is disposed within the outer bit and redirects fluid to the at least one biasing mechanism causing the at least one biasing mechanism to push the shaft and alter an axis of the inner bit with respect to an axis of the outer bit.
    Type: Application
    Filed: November 30, 2010
    Publication date: April 5, 2012
    Inventors: David R. Hall, Scott Dahlgren, Jonathan Marshall
  • Patent number: 8122977
    Abstract: A cutting device for downhole operations includes a first cutting structure, and a second cutting structure, wherein at least the second cutting structure is selectively presentable for operation. A method of performing a downhole cutting operation comprises running into a well bore a cutting device including a plurality of cutting structures, performing a first cutting operation with a first cutting structure of the cutting device, moving the first cutting structure to selectively present a second cutting structure of the cutting device, and performing a second cutting operation with at least the second cutting structure. The method may further include aligning movable cutting structures of the cutting device to allow the second cutting structure to be selectively presented.
    Type: Grant
    Filed: May 13, 2010
    Date of Patent: February 28, 2012
    Assignee: Smith International, Inc.
    Inventors: Charles H. Dewey, Praful C. Desai
  • Publication number: 20110259644
    Abstract: A system for orienting a drill bit prior to drilling into a formation, comprising a first pipe having an inside pipe diameter, the first pipe being positioned in a hole in the formation, and a curved shoe positioned in said first pipe at a desired orientation, said curved shoe including a funnel portion having an outlet that is off-center within the first pipe and a guide portion having a guide inlet in communication with the funnel outlet and an guide outlet that is off-center within the first pipe, the guide outlet occupying a different azimuthal position within the first pipe than is occupied by the guide inlet.
    Type: Application
    Filed: April 21, 2011
    Publication date: October 27, 2011
    Applicant: SHELL OIL COMPANY
    Inventors: John Robert GRADISHAR, Eirik SORGARD
  • Patent number: 7963347
    Abstract: According to the invention, a system for drilling a cavity in a medium is disclosed. The system may include a bottom hole assembly. The bottom hole assembly may include a first longitudinal segment and at least one drill bit. The first longitudinal segment may include a first length of chassis having a first cross section. The first cross section may be configured such that the first longitudinal segment may have a greater stiffness in a first lateral direction than in a lateral direction different than the first lateral direction.
    Type: Grant
    Filed: October 16, 2007
    Date of Patent: June 21, 2011
    Assignee: Schlumberger Technology Corporation
    Inventor: Jahir Alfonso Pabon
  • Publication number: 20110100640
    Abstract: A drive mechanism is described for moving/controlling objects/mechanisms/systems coupled with a drillstring and/or pipe. The drive mechanism may be axially arranged on a drillstring or pipe, compact, capable of fine control and delivering high torque or the like and may be electrically and/or hydraulically powered. The drive mechanism may comprising a driving member comprising a plurality of drivers linearly translatable with respect to the driving member, each driving member having at their ends a male engaging portion and an associated driven member, comprising a plurality of female receiving portions adapted to receive a male engaging portion, the arrangement being such that linear translation of a driver causes its engaging portion to engage with a female receiving portion and the action of the engaging portion produces a reaction in the receiving portion causing displacement of the driven member in a direction other than that of the translatable driver.
    Type: Application
    Filed: November 3, 2009
    Publication date: May 5, 2011
    Applicant: Schlumberger Technology Corporation
    Inventor: William Bertram
  • Patent number: 7909118
    Abstract: A movable boring assembly and a boring tool positioner for drilling a plurality of holes in a well casing and jetting a well production zone through the plurality of holes. All of the holes can be drilled in the casing at different angular positions, as well as different levels within the casing. The drilling tool can then be removed and a perforation jet can be reliably and accurately reoriented into the drilled holes to perforate a production zone in multiple directions and at multiple levels.
    Type: Grant
    Filed: February 2, 2009
    Date of Patent: March 22, 2011
    Inventors: Rudy Sanfelice, William C. Davis, Christopher Sanfelice, Bradley A. Pomeroy
  • Publication number: 20100254768
    Abstract: Unit plates are supported by unit frames connected consecutively together for turning about axes being remote from and crossing a longitudinal axis of the frames with the ability to alternately be shifted about the turning axes by rams coupled between the plates and frames and expanded while the frames are shifted continuously. The front frame supports alternately a face-and-end pumping mill, facing disk or wedge or endless chain cutter. A ski tenon supported on the front end of the front frame that is able to be engaged with a ski-trak means of adjacent from behind the same unit frames for relative turning about the axes and disengaged in the trench.
    Type: Application
    Filed: April 12, 2010
    Publication date: October 7, 2010
    Inventors: Vladimir Anatol Shreider, Natalia Shreider
  • Patent number: 7753139
    Abstract: A cutting device for downhole operations comprises a first cutting structure, and a second cutting structure, wherein at least the second cutting structure is selectively presentable for operation. A method of performing a downhole cutting operation comprises running into a well bore a cutting device comprising a plurality of cutting structures, performing a first cutting operation with a first cutting structure of the cutting device, selectively presenting a second cutting structure of the cutting device, and performing a second cutting operation with at least the second cutting structure. The method may further comprise aligning the cutting device to allow the second cutting structure to be selectively presented.
    Type: Grant
    Filed: July 6, 2005
    Date of Patent: July 13, 2010
    Assignee: Smith International, Inc.
    Inventors: Charles H. Dewey, Praful C. Desai
  • Patent number: 7709421
    Abstract: Single phase microemulsions improve the removal of filter cakes formed during drilling with oil-based muds (OBMs). The single phase microemulsion removes oil and solids from the deposited filter cake. Optionally, an acid capable of solubilizing the filter cake bridging particles may also be used with the microemulsion. In one non-limiting embodiment the acid may be a polyamino carboxylic acid. Skin damage removal from internal and external filter cake deposition can be reduced. In another optional embodiment, the single phase microemulsion may contain a filtration control additive for delaying the filter cake removal, destruction or conversion.
    Type: Grant
    Filed: October 17, 2007
    Date of Patent: May 4, 2010
    Assignee: Baker Hughes Incorporated
    Inventors: Thomas A. Jones, David E. Clark, Lirio Quintero
  • Patent number: 7632381
    Abstract: The present invention relates to a safety system during the entire delayed coker operation. The present invention preferably comprises a coke drum; a first coke drum de-header system coupled to the bottom of the coke drum; a second coke drum de-header system coupled to the top of the coke drum; a containment system coupled to the second coke drum de-header system; and a remote switching system. Hence, the present invention provides system for cutting coke within a coke drum with increased safety, efficiency and convenience.
    Type: Grant
    Filed: April 20, 2005
    Date of Patent: December 15, 2009
    Assignee: Curtiss-Wright Flow Control Corporation
    Inventor: Ruben F. Lah
  • Publication number: 20090183921
    Abstract: Embodiments of the present invention generally relate to a flow operated orienter. In one embodiment, a bottom hole assembly (BHA) for use in drilling a wellbore includes: a first mud motor having a stator and a rotor; a second mud motor having stator and a rotor; a drill bit rotationally coupled to the second rotor and having a tool face and a longitudinal axis inclined relative to a longitudinal axis of the first mud motor; and a clutch. The clutch is operable to: rotationally couple the second stator to the first stator in a first mode at a first orientation of the tool face, rotationally couple the first rotor to the second stator in a second mode, change the first orientation to a second orientation by a predetermined increment, orient the tool face at the second orientation in an orienting mode, and shift among the modes in response a change in flow rate of a fluid injected through the orienter and/or a change in weight exerted on the drill bit.
    Type: Application
    Filed: January 16, 2009
    Publication date: July 23, 2009
    Inventors: Rishi Gurjar, Omar Neumann
  • Patent number: 7487846
    Abstract: A method of drilling a borehole from a selected location in an existing wellbore (1) penetrating subterranean earth formation having at least one hydrocarbon bearing zone (3) wherein the existing wellbore is provided with a casing (4) and a hydrocarbon fluid production conduit (6) is arranged in the existing wellbore in sealing relationship with the wall of the casing, the method comprising: passing a remotely controlled electrically operated drilling device (12) from the surface through the hydrocarbon fluid production conduit to the selected location in the existing wellbore; operating the drilling device such that cutting surfaces on the drilling device drill the borehole from the selected location in the existing wellbore thereby generating drill cuttings wherein during operation of the drilling device, a first stream of produced fluid flows directly to the surface through the hydrocarbon fluid production conduit and a second stream of produced fluid is pumped over the cutting surfaces of the drilling dev
    Type: Grant
    Filed: July 16, 2003
    Date of Patent: February 10, 2009
    Assignee: Schlumberger Technology Corporation
    Inventors: Philip Head, Paul George Lurie
  • Patent number: 7481282
    Abstract: Some embodiments of the present invention generally provide an apparatus that may be used in a coiled tubing drillstring and that can switch between effectively straight drilling and curved drilling without halting drilling. Methods for steering a coiled tubing drillstring are also provided. In one embodiment, an apparatus for use in drilling a wellbore is provided. The apparatus includes a mud motor; a housing; an output shaft; and a clutch actuatable between two positions. The clutch is configured to rotationally couple the mud motor to the output shaft when the clutch is in a first position as a result of fluid being injected through the clutch at a first flow rate, and rotationally couple the output shaft to the housing when the clutch is in a second position as a result of fluid being injected through the clutch at a second flow rate.
    Type: Grant
    Filed: May 11, 2006
    Date of Patent: January 27, 2009
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Clemens L. Horst, David W. Teale, Mark Heaton
  • Publication number: 20090020335
    Abstract: Methods, systems, and apparatus that are suitable for use in production of hydrocarbons from subterranean heavy oil deposits employ a subterranean cavity in communication with a borehole.
    Type: Application
    Filed: July 17, 2007
    Publication date: January 22, 2009
    Applicant: SCHLUMBERGER TECHNOLOGY CORP.
    Inventors: IAIN COOPER, REX BURGOS, PATRICK SCHNEIDER, JOHN STYRE