Telescoping Motion Related To Relative Axial Rotation Or Oscillation Patents (Class 175/322)
  • Patent number: 8973682
    Abstract: A wellbore obstruction-clearing tool connected to the bottom of a tubing string, such as casing, utilizes a sleeve which is axially and rotationally moveable in response to axial reciprocation of a tubing string to engage and clear obstructions in the wellbore. Fluid is discharged through the casing and the tool to engage the obstructions and to convey debris through the annulus to surface. Thus, the obstructions are cleared from the wellbore, permitting the casing to be advanced, without the need to rotate the casing.
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: March 10, 2015
    Inventor: Randall E. Gosselin
  • 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: 8944190
    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: January 14, 2014
    Date of Patent: February 3, 2015
    Assignee: APS Technology, Inc.
    Inventors: Mark Ellsworth Wassell, William Evans Turner, Daniel E. Burgess, Carl Allison Perry
  • 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: 8893823
    Abstract: A drilling tool assembly may include a housing, a piston disposed in the housing, and a clutch assembly coupled to the housing and the piston. The clutch assembly may be configured to facilitate rotation of the piston relative to the housing. A cutting assembly may be coupled to the piston in a manner that it is rotatable relative to the piston. A method of forming a wellbore may include positioning a drilling tool in the wellbore, the drilling tool comprising a housing, a piston, a clutch assembly, and a drill head. The method may further include reciprocating the piston axially within the housing, rotating the piston relative to the housing the clutch assembly, rotating the drill head relative to the housing and the piston, and forming the wellbore.
    Type: Grant
    Filed: November 15, 2010
    Date of Patent: November 25, 2014
    Assignee: Javins Corporation
    Inventors: Huy D. Bui, Brooks Howard Javins
  • 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
  • Patent number: 8662205
    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: July 24, 2012
    Date of Patent: March 4, 2014
    Assignee: APS Technology, Inc.
    Inventors: Mark Ellsworth Wassell, William Evans Turner, Daniel E. Burgess, Carl Allison Perry
  • Patent number: 8646548
    Abstract: Drill bits enable the use of tools in a wellbore when it is undesirable or impossible to remove the drill bit. Drill bits include a drill bit insert, a latch assembly, a housing, a running tool, and a shaft trigger to operate the latch assembly.
    Type: Grant
    Filed: September 9, 2010
    Date of Patent: February 11, 2014
    Assignee: ThruBit, LLC
    Inventors: Peter Wells, Jon Macrae
  • Publication number: 20130220701
    Abstract: This invention relates to a torque control device for a downhole drilling assembly. The torque control device is adapted for connection to a drill bit, and has an outer sleeve and an inner shaft, the outer sleeve being movable longitudinally relative to the inner shaft. The torque control device also has a cylinder, a piston located within the cylinder, and a controller to control the volume of the cylinder. Changing the volume of the cylinder causes relative longitudinal movement between the outer sleeve and the inner shaft. The controller can receive inputs from a torque sensor and/or an accelerometer in order to determine if a threshold torque has been exceeded. Alternatively the controller can comprise a rotary valve which automatically responds to torque in the assembly.
    Type: Application
    Filed: February 25, 2013
    Publication date: August 29, 2013
    Applicant: SMART STABILIZER SYSTEMS LIMITED
    Inventor: Smart Stabilizer Systems Limited
  • Publication number: 20130056283
    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: Application
    Filed: July 24, 2012
    Publication date: March 7, 2013
    Applicant: APS TECHNOLOGY, INC.
    Inventors: Mark Ellsworth Wassell, William Evans Turner, Daniel E. Burgess, Carl Allison Perry
  • Patent number: 8240401
    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: August 9, 2011
    Date of Patent: August 14, 2012
    Assignee: APS Technology, Inc.
    Inventors: Mark Ellsworth Wassell, William Evans Turner, Daniel E. Burgess, Carl Allison Perry
  • 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: 8191655
    Abstract: An apparatus for reaming a wellbore without rotating a tubular string that is extendable to a surface. A mandrel (102) is coupled to a downhole end of the tubular string. The mandrel (102) has at least one groove (110) in a sidewall portion thereof. A sleeve (112) is operably associated with the mandrel (102) such that longitudinal travel of the mandrel (102) relative to the sleeve (112) shifts the sleeve (112) between extended and contracted positions relative to the mandrel (102). A reamer shoe (122) is coupled to a downhole end of the sleeve (112). At least one coupling device (116) is operably associated with the sleeve (112) and extendable into the at least one groove (110) such that longitudinal travel of the mandrel (102) relative to the sleeve (112) caused the sleeve (112) to rotate relative to the mandrel (102), thereby rotating the reamer shoe (122).
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: June 5, 2012
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Daniel Declute-Melancon
  • Patent number: 7997357
    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 24, 2008
    Date of Patent: August 16, 2011
    Assignee: APS Technology, Inc.
    Inventors: Mark Ellsworth Wassell, William Evans Turner, Daniel E. Burgess, Carl Allison Perry
  • Patent number: 7841400
    Abstract: Drill bits are enable the use of tools in a wellbore when it is undesirable or impossible to remove the drill bit. Drill bits include a drill bit insert, a latch assembly, a housing, a running tool, and a shaft trigger to operate the latch assembly.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: November 30, 2010
    Assignee: Thrubit B.V.
    Inventors: Peter Wells, Jon Macrae
  • 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: 7654344
    Abstract: A torque converter for use in drilling with a rotating drill bit, the purpose of the torque converter being to absorb impacts and bring about an axial movement of the drill bit when the torque exceeds a predetermined value. For this purpose the torque converter is composed of two cylindrical string parts connected through the bearing elements. The string parts are connected to each other through helical elements in such a way that relative rotation of the two cylindrical string parts brings about axial movement, which unloads the drill bit.
    Type: Grant
    Filed: January 16, 2006
    Date of Patent: February 2, 2010
    Assignee: Tomax AS
    Inventors: Per Olav Haughom, Nils Reimers
  • Publication number: 20090078468
    Abstract: A rock drilling machine comprising a frame (3, 4), arranged inside the frame a drill rod (2) movable in axial direction, an arrangement (5) to rotate drill rod (2), a hammer gear, by means of which hammering pulses are generated into a piston (1), which is arranged to hammer the drill rod (2) rear end, in order to transmit hammering pulses through the drill rod into the drilling equipment, attachable to the drill rod front end, and further, in this drilling machine there is arranged around the drill rod a position sleeve (9) and an arrangement to move position sleeve in axial direction against hammering piston (1) so that counter surface (13) in position sleeve (9) meets counter surface (12) in drill rod (2) whereby, on continuing the said positioning, drill rod (2) is movable to the point wanted.
    Type: Application
    Filed: September 26, 2007
    Publication date: March 26, 2009
    Inventor: Hannu PAASONEN
  • 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: 7341116
    Abstract: A device and system for improving efficiency of subterranean cutting elements uses a controlled oscillation super imposed on steady drill bit rotation to maintain a selected rock fracture level. In one aspect, a selected oscillation is applied to the cutting element so that at least some of the stress energy stored in an earthen formation is maintained after fracture of the rock is initiated. Thus, this maintained stress energy can thereafter be used for further crack propagation. In one embodiment, an oscillation device positioned adjacent to the drill bit provides the oscillation. A control unit can be used to operate the oscillation device at a selected oscillation. In one arrangement, the control unit performs a frequency sweep to determine an oscillation that optimizes the cutting action of the drill bit and configures the oscillation device accordingly. One or more sensors connected to the control unit measure parameters used in this determination.
    Type: Grant
    Filed: January 20, 2005
    Date of Patent: March 11, 2008
    Assignee: Baker Hughes Incorporated
    Inventors: Roger W. Fincher, Larry A. Watkins, Peter Aronstam, Allen Sinor, John L. Baugh
  • 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: 7044240
    Abstract: A torque absorber is disposed on a drill string near the motor. The torque absorber automatically adjusts the weight on a drill bit and reduces the likelihood of motor stall caused by resistance to drill bit rotation. The torque absorber includes an upper unit assembly and a lower unit assembly. The upper unit assembly includes a top sub and a ball body. The lower unit assembly includes a bottom sub, a lead screw, and a ball retainer. The components of the lower unit assembly are free to rotate as a result of motor back torque, which is in a direction opposite of the direction of rotation of the drill bit during normal drilling. The upper unit assembly will remain stationary while the components of the lower unit assembly rotate in this opposite direction. A spring applies a force on the lead screw.
    Type: Grant
    Filed: December 18, 2003
    Date of Patent: May 16, 2006
    Inventor: Keith McNeilly
  • Patent number: 6951082
    Abstract: A telescoping rig with an upper mast telescopingly received within a lower mast. A torque carrier is formed of an upper part suspended within the upper mast and a lower part attached to the lower mast. The lower part may be secured to the upper part when the rig is in operational position, and is movable to allow the upper mast to move into a telescoped position within the lower mast. The rig is readied for transport by disconnecting upper and lower parts of a torque carrier, moving the lower torque carrier laterally within the lower mast to allow the upper mast to telescope within the lower mast; and telescoping the upper mast within the lower mast.
    Type: Grant
    Filed: January 3, 2003
    Date of Patent: October 4, 2005
    Assignee: Allan R. Nelson Engineering (1977)
    Inventors: Allan R. Nelson, Mark E. Mattock
  • Patent number: 6854538
    Abstract: A rock drill includes a shank. A percussion piston is arranged to hit the back end of the shank. Further, a pulling element is arranged around the shank, to which a pulling force can be directed in such a manner that the shank can, by the pulling force, be moved toward the percussion piston, when stuck drilling equipment is freed. During rock drilling, a push force is arranged to act on the pulling element, the push force being opposite with respect to the pulling force. The push force is designed in such a manner that during drilling the pulling element moves due to the push force toward the front section of the drill to be at a predefined distance from the position corresponding to the impact point of the shank.
    Type: Grant
    Filed: December 10, 2003
    Date of Patent: February 15, 2005
    Assignee: Sandvik Tamrock Oy
    Inventor: Timo Muuttonen
  • Publication number: 20040129457
    Abstract: A torque absorber is disposed on a drill string near the motor. The torque absorber automatically adjusts the weight on a drill bit and reduces the likelihood of motor stall caused by resistance to drill bit rotation. The torque absorber includes an upper unit assembly and a lower unit assembly. The upper unit assembly includes a top sub and a ball body. The lower unit assembly includes a bottom sub, a lead screw, and a ball retainer. The components of the lower unit assembly are free to rotate as a result of motor back torque, which is in a direction opposite of the direction of rotation of the drill bit during normal drilling. The upper unit assembly will remain stationary while the components of the lower unit assembly rotate in this opposite direction. A spring applies a force on the lead screw, causing the lower unit assembly to rotate back downward once the motor back torque reduces.
    Type: Application
    Filed: December 18, 2003
    Publication date: July 8, 2004
    Inventor: Keith McNeilly
  • Patent number: 6543556
    Abstract: A torque shock absorber apparatus (39) comprised of a mandrel (2) and cylinder (8) with torque absorbing mechanism (8-12, 27) to absorb excessive torque while permitting the transmission of rotational energy to the drill string is connected in the drill string or as the drive mechanism in a jar or accelerator (40) to prevent excessive torque loading of the drill string.
    Type: Grant
    Filed: September 11, 1999
    Date of Patent: April 8, 2003
    Assignee: Smith International, Inc.
    Inventor: Edwin A. Anderson
  • Patent number: 6439318
    Abstract: A downhole drilling assembly (10) comprises a body (11) for mounting on a drillstring, the body defining a fluid conduit. A drilling fluid driven motor (12) is mounted in the body (11) and is coupled to a flow restricting device (14) axially movably mounted to the body (11). The device is coupled to a drill bit (16). In use, the flow restricting device (14) is driven by the motor (12) to vary the flow of drilling fluid through the body and produce a varying fluid pressure force to induce axial movement of the device (14) relative to the body (11), and thus provide a percussive or hammer drilling effect. The flow restricting device (14) may be coupled to the drill bit (16) by a mandrel (46) splined or otherwise coupled to the body. Alternatively, the flow restricting device (68) may be coupled to the drill bit (72) by a rotatable shaft (70), such that the motor (64) may also rotate the drill bit (72).
    Type: Grant
    Filed: June 27, 2000
    Date of Patent: August 27, 2002
    Assignee: Andergauge Limited
    Inventors: Alan Martyn Eddison, Charles Abernethy Anderson
  • Patent number: 6308940
    Abstract: A rotary and longitudinal shock absorbing apparatus with an mandrel therein is connected to a drill string assembly to absorb abnormal longitudinal shocks and abnormal torsional shocks by cooperating hydraulic and mechanical means, while allowing communication of drilling fluid through the body of the apparatus. The construction of the apparatus is such that torque shock absorbing action is independent of the longitudinal shock absorbing action and the apparatus provides balanced internal and external pressure to permit its operation at all levels of hydraulic pressure.
    Type: Grant
    Filed: September 11, 1999
    Date of Patent: October 30, 2001
    Assignee: Smith International, Inc.
    Inventor: Edwin A. Anderson
  • Patent number: 5894896
    Abstract: There is described an improved apparatus for azimuthal orientation of a tool in a wellbore. The apparatus comprises a tubular housing, a mandrel rotatably supported in the tubular housing and extending therefrom for connection to a tool for rotation thereof, a piston mandrel axially aligned with and connected to the mandrel, a piston longitudinally movable in an annulus between the piston mandrel and the tubular housing and being non-rotatable relative to the tubular housing, at least one pin longitudinally movable in concert with the piston arranged to track in respective helical grooves in the mandrel causing rotation of the mandrel in response to longitudinal movement of the pins, and a flow path for selective delivery of pressurized hydraulic fluid to either side of the piston for rotating the mandrel in either the clockwise or counterclockwise directions, or to both sides of the piston equally to maintain the mandrel in a fixed annular orientation.
    Type: Grant
    Filed: August 21, 1996
    Date of Patent: April 20, 1999
    Assignee: Canadian Fracmaster Ltd.
    Inventors: Donald Smith, Andre Naumann, Lennard Sihlis
  • Patent number: 5775444
    Abstract: The housing of the orienting motor serves as a length of pipe string and rotates the lower end relative to the upper end. Rotation is in preselected increments each time the rate of fluid flow in the pipe string is changed between preselected limits. Once rotated an increment the housing is rotationally locked as long as flow rate is maintained greater than a preselected amount. When fluid flow is stopped, the actuation system resets, in time, to the starting position but a one way clutch retains the previous rotational relationship between opposite ends of the housing. Resetting time is adjustable to permit a preselected activity period before flow restart without further changes in the orienting action.
    Type: Grant
    Filed: October 23, 1996
    Date of Patent: July 7, 1998
    Inventor: Thomas E. Falgout, Sr.
  • Patent number: 5673765
    Abstract: A downhole drilling subassembly for use with a pressurized fluid carrying drill string extending from a well head and having a portion down a bore hole. A first tubular housing is provided which is adapted to couple to the portion of the drill string in the bore hole. A second tubular housing is carried by the first tubular housing. Each of the housings has a generally circular cross-section and extends along a longitudinal axis. The second tubular housing is longitudinally movable relative to the first tubular housing between a first position at least partially retracted within the first tubular housing and a second position at least partially extended from the first tubular housing. An assembly responsive to moving the second tubular housing from its first position to its second position is carried by the first and second tubular housings for rotating the first and second tubular housings with respect to one another in the bore hole between first and second relative angular positions.
    Type: Grant
    Filed: August 29, 1995
    Date of Patent: October 7, 1997
    Inventors: Willard H. Wattenburg, Eric J. Wattenburg
  • Patent number: 5669457
    Abstract: A drill string orienting tool for insertion into a well bore includes a housing that has a plurality of inwardly projecting splines. A mandrel is disposed within the housing. The orienting tool has two operating positions, a running position, and an orienting position. The housing is longitudinally moveable relative to the mandrel between the running position and the orienting position. The mandrel and the housing define an annular chamber that is vented to the exterior of the housing. A flexible metallic coiled tube is disposed within the annular chamber and contains hydraulic fluid. The upper end of the coiled tube is coupled to the housing and is in fluid communication with the first fluid chamber. The lower end of the coiled tube is coupled to the mandrel. The mandrel has outwardly projecting splines that are engageable with a corresponding set of inwardly projecting splines on the housing when the orienting tool is in the running position. A piston is movably disposed within the housing.
    Type: Grant
    Filed: January 2, 1996
    Date of Patent: September 23, 1997
    Assignee: Dailey Petroleum Services Corp.
    Inventors: Danny S. Sebastian, Thomas R. Beasley
  • Patent number: 5476148
    Abstract: A tool for connection in a wellbore drill string for maintaining penetration of a drilling bit attached to the drill string when the drill string becomes stuck or hung up during drilling operations. The tool has a telescoping outer member and inner member which form an annular chamber between them which contains a plurality of springs that are selected to provide a desired amount of contraction of the tool when a predetermined axial compressive load is applied through the tool to the drilling bit. The tool also includes interlocking splines on the outer member and the inner member which inhibit rotational movement of the outer member and inner member relative to each other, and the chamber is filled with hydraulic fluid which is pressurized to the hydrostatic pressure of the wellbore adjacent the tool by a floating piston which is movably located in the chamber. In operation, the tool contracts when an axial compressive load is applied through the tool during drilling operations.
    Type: Grant
    Filed: January 27, 1995
    Date of Patent: December 19, 1995
    Inventor: Raymond LaBonte
  • Patent number: 5454420
    Abstract: A wellbore operation in which a downhole tool is given rotary motion without rotating the tubing string to which it is attached. A "Yankee screwdriver" type of connecting element is used to connect a downhole tool to a tubing string so that compressive forces acting on the connector as a result of relative linear movement between the connector and the tool cause the tool to rotate. A number of various types of downhole operations are possible, such as rotating a tool away from an obstruction and retrieving the upper section of a lost tubing string.
    Type: Grant
    Filed: October 14, 1992
    Date of Patent: October 3, 1995
    Assignee: Marathon Oil Company
    Inventors: Philip M. Snider, Michael J. Dietrich
  • Patent number: 5445230
    Abstract: A downhole drilling subassembly for use with a pressurized fluid carrying drill string extending from a well head down to a bottom of a bore hole. The drill string includes upper and lower sections disposed at an angle relative to each other and having respective upper and lower longitudinal axes. An upper subassembly portion is adapted to couple to the upper section of the drill string. A lower subassembly portion is rotatably carried by the upper subassembly portion and is adapted to couple to the lower section of the drill string. The upper and lower subassembly portions are hollow so as to permit the pressurized fluid to pass therethrough. An assembly responsive to raising the drill string off the bottom of the bore hole and lowering the drill string back onto the bottom of the bore hole is provided for rotating the upper and lower subassembly portions with respect to one another between first and second relative angular positions.
    Type: Grant
    Filed: October 1, 1993
    Date of Patent: August 29, 1995
    Inventors: Willard H. Wattenburg, Eric J. Wattenburg
  • Patent number: 5404944
    Abstract: A downhole tool for making up threaded connections between lower and upper tubulars within a well bore includes a lower anchoring member, an upper anchoring member, and a drive member including a movable piston assembly. A plurality of straight splines on the piston assembly and mating splines on a housing rotatable with the lower anchoring member allow axial movement while preventing rotational movement of the piston assembly with respect to the lower anchoring member during the tool driving stroke. The helical drive component on the piston assembly and a mating driven component rotatable with the upper anchoring member cooperate to rotate the upper anchoring member and thus the upper tubular to make up the downhole threaded connection. According to the method of the present invention, the upper and lower anchoring members are each secured to a respective tubular, and fluid pressure is increased to drive the piston assembly downward, thereby rotating the upper tubular.
    Type: Grant
    Filed: September 24, 1993
    Date of Patent: April 11, 1995
    Assignee: Baker Hughes, Inc.
    Inventors: Gerald Lynde, Ralph D. Wright, Richard A. Sukup, Patrick R. Brand
  • Patent number: 5375670
    Abstract: Drill string component for use at drilling with a liquid driven down-the-hole drilling machine (1) comprising three coaxial tubes (2,4,6) for forming channels for supply of driving medium to the down-the-hole drilling machine, return of the driving medium after it has done its work and supply of flushing medium to the bore hole. The outer tube (2) of the drill string component is provided with a first end piece (7) which is axially displaceable relative to the outer tube and axially lockable relative to the outer tube in an outer position so that the inner tubes (4,6) are protected against damage when the drill string component is not connected with another drill string component, the hammer device (1) or a rotary device (9) for rotation of the drill string.
    Type: Grant
    Filed: May 7, 1993
    Date of Patent: December 27, 1994
    Assignee: Atlas Copco Rocktech AB
    Inventors: Berndt Ekwall, Martin Peterson, Kurt Andersson
  • Patent number: 5339913
    Abstract: A down hole well tool shown in the form of an orienting tool (OT) has mandrel (16) with helical grooves (16a) thereon and a tubular member (20) which telescopically receives the mandrel (16). Keys (22) on tubular member (22) engage in the grooves (16a). Mandrel (16) is connected with non rotatable coil tubing (T) and member (20) is connected to a bottom hole assembly (BHA) which may comprise a plurality of components or a single device to form a well tool. The orienting or rotating tool (OT) and down hole assembly (BHA) constitute an orienting assembly, for orienting or rotating a device such as a drill bit (13) to drill a deviated well bore, including a horizontal well bore, to a desired target area. Downhole instruments relay to the surface equipment (1) the azimuth, inclination and tool face of the directional drilling equipment.
    Type: Grant
    Filed: September 30, 1992
    Date of Patent: August 23, 1994
    Inventor: Allen K. Rives
  • Patent number: 5316094
    Abstract: An orientation mandrel rotatable in an orientation body for providing rotational orientation and actuated by a hydraulic piston controlling the position of a helix. A thruster may be connected to the orientation mandrel and is adapted to hydraulically engage the well bore by plurality of elongate gripping bars. An annular thruster piston is hydraulically and longitudinally movable in the thruster body for extending the thruster mandrel outwardly from the thruster body. However, the orientating tool and thruster may be used separately.
    Type: Grant
    Filed: October 20, 1992
    Date of Patent: May 31, 1994
    Assignee: Camco International Inc.
    Inventor: Ronald E. Pringle
  • Patent number: 5269385
    Abstract: There is described an adjustable bent housing comprising a cylindrical housing having an uphole and a downhole end and a bore formed therethrough, the bore being divided into uphole and downhole portions axially offset to one another, and a tubular mandrel having an uphole and a downhole end, the ends being axially offset to one another. The downhole end of the mandrel is receivable along a portion of its length into the uphole portion of the bore in the housing for rotational movement relative to the cylindrical housing for varying the angle of bend between the mandrel and the cylindrical housing. Also provided is a locking mechanism comprising outer and inner concentric sleeves disposed annularly about the mandrel.
    Type: Grant
    Filed: March 15, 1993
    Date of Patent: December 14, 1993
    Assignee: Canadian Fracmaster Ltd.
    Inventor: Lennard Sihlis
  • Patent number: 5259467
    Abstract: A fluid powered incremental stepping motor arranged to serve as a length of pipe string has a body that includes an arbor end with an arbor of reduced diameter extending into a bore of a housing end bearingly supported for rotation about the arbor. An annular space between arbor and housing contains a piston rotationally secured to the arbor for limited axial movement. The piston operates within the bore as a power cylinder and carries a flow resistor. Fluid channels extend through the body to accept fluid flow down the pipe string. Fluid flow urges the piston downward and a spring urges it upward. Cams on each end of the piston and mating cams in the housing bore engage at the upward and at the downward extreme of piston travel and at each engagement impart an increment of rotation of the housing relative to the arbor at each excursion of the piston. Increasing fluid flow down the pipe string and then decreasing the flow causes the piston to reciprocate at each flow rate change cycle.
    Type: Grant
    Filed: April 9, 1992
    Date of Patent: November 9, 1993
    Inventor: William N. Schoeffler
  • Patent number: 5215151
    Abstract: A method and apparatus for directional drilling to recover hydrocarbons, thermal energy, or the like, by using coiled tubing while the well is under pressure so that high density drilling fluids to control the subsurface pressures during drilling are not required. Snubbing apparatus and methods which maintain control of the bore hole pressure throughout the drilling operation are used, thus permitting the use of fresh water as a combination hydraulic fluid to operate a downhole motor and cool the bit, and to flush cuttings from the bore hole. The apparatus uses a down hole assembly including a bit driven by a motor, preferably hydraulic, which is located in a bent housing. A steering tool capable of indicating the angle and azimuth of inclination of the housing is carried by the motor housing and is connected to surface instrumentation by an electrical cable extending through the coiled tubing.
    Type: Grant
    Filed: September 26, 1991
    Date of Patent: June 1, 1993
    Assignee: Cudd Pressure Control, Inc.
    Inventors: Michael L. Smith, Charles E. Goodman
  • Patent number: 5156223
    Abstract: A downhole oil well tool uses impact, reciprocal drilling and an improved rotating bit or like working member, receiving both fluid pressure and weight from an elongated pipe string with a flow bore in order to drive the tool. A valve within tool housing controls fluid pressure to the working end so that the tool pressures up, then releases pressure through the working member allowing the pipe string to load the bit, creating impact. A clutch rotates the working member during drilling to prevent imprint upon the formation. A bias spring is provided to control and adjust the amount of weight on the bit independent of pipe weight.
    Type: Grant
    Filed: May 14, 1991
    Date of Patent: October 20, 1992
    Inventor: James E. Hipp
  • Patent number: 5038874
    Abstract: A drill string for top hammer drilling includes a drill bit, a set of central rod members for transferring impact energy to the drill bit, and a set of tubular members surrounding the rod members for transferring rotation to the drill bit. The rod members define a first internal channel for conducting flushing medium. The drill bit defines a second internal channel which extends rearwardly and penetrates a rear end of the drill bit to communicate with the first channel. The drill bit further includes a transverse channel disposed in an intermediate section of the drill bit and which is connected to the second channel. The transverse channel penetrates an envelope surface of the drill bit for conducting flushing medium out of the drill bit and into an enlarged space defined between the drill bit and the tubular member.
    Type: Grant
    Filed: February 5, 1990
    Date of Patent: August 13, 1991
    Assignee: Sandvik AB
    Inventors: Lars K. Larsson, Sven P. Liljebrand
  • Patent number: 4958691
    Abstract: A downhole oil well tool uses impact, reciprocal drilling and an improved rotating bit or like working member, receiving both fluid pressure and weight from an elongated pipe string with a flow bore in order to drive the tool. A valve within tool housing controls fluid pressure to the working end so that the tool pressures up, then releases pressure through the working member allowing the pipe string to load the bit, creating impact. A clutch rotates the working member during drilling to prevent imprint upon the formation.
    Type: Grant
    Filed: June 16, 1989
    Date of Patent: September 25, 1990
    Inventor: James Hipp
  • Patent number: 4884643
    Abstract: A downhole adjustable bent sub is provided for use in a drilling process in which a drill bit is subjected to a drilling force. The bent sub has a tubular housing and a tubular mandrel. The tubular housing has a bend along its length to define an upper part and a lower part, the respective longitudinal axes of which intersect at an angle. The tubular mandrel also has a bend along its length to define a first part and a second part, the respective longitudinal axis of which intersect at an angle. The first part of the mandrel slidably engages the interior of the lower part of the tubular housing. a longitudinal stop prevents the mandrel from being slid out of the housing. Longitudinal biasing means urge the mandrel toward the longitudinal stop to a first position. A rotational stop prevents relative rotation between the mandrel and the housing when the mandrel is in the first position.
    Type: Grant
    Filed: January 17, 1989
    Date of Patent: December 5, 1989
    Assignee: 392534 Alberta Ltd.
    Inventors: Mike Wawrzynowski, Don Ruckman
  • Patent number: 4800966
    Abstract: A device for drilling lateral boreholes from a cased parent well comprises selecting and coupling means adapted to cooperate with a deflection unit placed within the parent well. The selecting and coupling means are mounted at the lower end of an extension unit formed by interassembled tubular elements. The upper end of the extension unit is rigidly fixed to a suspension swivel within the wellhead and at least one slip joint is interposed between two tubular elements. The internal diameter of each tubular element is such that a drilling packer can be housed within the tubular elements.
    Type: Grant
    Filed: April 30, 1987
    Date of Patent: January 31, 1989
    Assignee: Societe Nationale Elf Aquitaine (Production)
    Inventors: Jean-Pierre Parant, Christian Mariotti, Patrick Rousselet
  • Patent number: 4600062
    Abstract: A well tool carried in a drill string for maintaining bottom hole contact while absorbing angular and axial shock forces of a rotating drill bit. The tool has an elongated body with pipe joint ends and includes a tubular mandrel slideably mounted within a tubular barrel. A groove and roller connection guides the mandrel within the barrel during drilling. Resilient shock absorbing members between metal guide rings are carried between stop elements on the mandrel and barrel. Shock forces are absorbed by the telescoping movements of the mandrel within the barrel and by in the members acted on by the stop elements. The mandrel is formed of two pieces that threadedly connect to one another between the resilient shock absorbing members and the groove and roller connection. A lifting lug positioned above the rollers and below the shock absorbing members within an elongate mandrel groove, engages the joint to transfer the weight of the mandrel to the barrel upon withdrawal of the tool.
    Type: Grant
    Filed: July 13, 1984
    Date of Patent: July 15, 1986
    Assignee: 501 Dailey Petroleum Services Corporation
    Inventor: Chuan C. Teng
  • Patent number: 4494617
    Abstract: A machine for boring a shaft in earth strata or the like. An annular support ring means having an outside diameter approximately equal to the diameter of the shaft which is selectively engageable or disengageable with the shaft wall by the use of clamping means is disclosed. A carriage means which is slidably mounted on the annular support ring means and orbital thereabout is also disclosed. A rotary cutting wheel means having a diameter substantially smaller than the diameter of the shaft is mounted on the carriage means and is axially displaceable with respect thereto for movement in a direction which may be parallel or inclined with respect to the axis of the shaft. Various drive means for moving the carriage means circumferentially about the annular support ring means, and for moving the rotary cutting wheel means in an axial direction with respect to the carriage means, and for rotating the rotary cutting wheel means are described.
    Type: Grant
    Filed: January 27, 1983
    Date of Patent: January 22, 1985
    Assignee: Harrison Western Corporation
    Inventor: Larry L. Snyder
  • Patent number: RE36556
    Abstract: A method and apparatus for directional drilling to recover hydrocarbons, thermal energy, or the like, by using coiled tubing while the well is under pressure so that high density drilling fluids to control the subsurface pressures during drilling are not required. Snubbing apparatus and methods which maintain control of the bore hole pressure throughout the drilling operation are used, thus permitting the use of fresh water as a combination hydraulic fluid to operate a downhole motor and cool the bit, and to flush cuttings from the bore hole. The apparatus uses a down hole assembly including a bit driven by a motor, preferably hydraulic, which is located in a bent housing. A steering tool capable of indicating the angle and azimuth of inclination of the housing is carried by the motor housing and is connected to surface instrumentation by an electrical cable extending through the coiled tubing.
    Type: Grant
    Filed: May 17, 1995
    Date of Patent: February 8, 2000
    Assignee: Cudd Pressure Control, Inc.
    Inventors: Michael L. Smith, Charles E. Goodman