Internal Patents (Class 166/55.7)
  • Patent number: 10456876
    Abstract: A mobile-unit station dedicated to pipe cutting is provided.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: October 29, 2019
    Inventors: Erik Haakon Ulmer, Donald Martin Ulmer
  • Patent number: 10167690
    Abstract: A method of cutting a tubular includes disposing a rotatable cutter assembly in the tubular, the cutter assembly including a blade having a cutting portion; engaging the tubular using a trailing cutting structure of the cutting portion; engaging the tubular using an intermediate cutting structure of the cutting portion; forming a window in the tubular; and longitudinally extending the window using a leading cutting structure of the cutting portion. A rotatable blade includes a blade body extendable from a retracted position; and a cutting portion on the blade body having: a trailing cutting structure configured to engage the tubular, an intermediate cutting structure configured to engage the tubular while the trailing cutting structure engages the tubular, a leading cutting structure configured to engage an exposed wall thickness of the tubular; and an integral stabilizer disposed on at least a portion of an outer surface of the blade body.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: January 1, 2019
    Assignee: Weatherford Technology Holdings, LLC
    Inventors: Mohammed Aleemul Haq, Richard J. Segura, David W. Teale
  • Patent number: 10041320
    Abstract: In some aspects, a cutting tool is provided. The cutting tool can include a mandrel, a sleeve, and first and second cutting elements. The mandrel can include first and second protrusions positioned at respective first and second lengths along the mandrel. The sleeve can at least partially surround the mandrel. Each of the first and second cutting elements can move from a respective position within the sleeve to a respective position at least partially protruding from the sleeve in response to a respective force exerted by a respective one of the first and second protrusions.
    Type: Grant
    Filed: November 13, 2013
    Date of Patent: August 7, 2018
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Jack Gammill Clemens
  • Patent number: 9797240
    Abstract: Method and apparatus for deploying at least one repeatable signal to empirically measure cement bonding before and after operating a tool string assembly comprising a selectively arrangeable tool assembly of a downhole drive tool usable for operating a downhole placement tool with shaft and axial displacement member extendable and retractable therefrom to radially deploy and operate at least one conduit and downhole coupling tool for placing cement and at least one inner conduit proximally concentrically within a surrounding bore, wherein said drive coupling tool is further usable for transmitting or receiving, through a conductance well element into a memory tool, to measure cement bonding about said surrounding bore before and after concentrically cleaning and coupling cement to at least one conduit and surrounding bore.
    Type: Grant
    Filed: September 17, 2012
    Date of Patent: October 24, 2017
    Inventor: Bruce Tunget
  • Patent number: 9695660
    Abstract: A casing mill for downhole casing milling has multiple elongated cutter bases hingedly connected to a main body by a plurality of positioning arms. An operating mechanism within the main body of the casing mill, actuated by fluid flow, moves the cutter bases to an extended position. Multiple cutters fixed to the cutter bases are then positioned to engage a casing end surface. Preferably, the cutters are arranged in vertically spaced apart rows, such that when one row is worn out in the milling process a visual indication is seen at the surface, as the casing mill drops to the next row of cutters.
    Type: Grant
    Filed: August 6, 2013
    Date of Patent: July 4, 2017
    Assignee: ABRADO, INC.
    Inventor: David J. Ruttley
  • Patent number: 9650853
    Abstract: A downhole tool that includes a cutter and jacking system and methods of using such a tool to remove a portion of casing or tubing from a wellbore. The tool may include an upper slip and a lower slip configured to selectively engage casing of a wellbore. A cutter and an extendable section may be positioned between the upper and lower slips. The cutter may be used to cut casing into an upper portion and a lower portion and the extendable section may be used to increase a distance between the upper and lower slips that moves the upper portion of the casing and the lower portion of the casing away from each other. The extendable section may be hydraulically actuated to move the upper portion of the casing away from the lower portion of the casing. The cutter may be an abrasive jet configured to cut the casing.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: May 16, 2017
    Assignee: Baker Hughes Incorporated
    Inventor: Douglas J. Lehr
  • Patent number: 9512690
    Abstract: A cutting element includes a front face and leading face extending between a first and second sides. A leading cutting edge is located at an intersection of the front face and the leading face, and an undulating back-up cutting edge is formed in the front face and extends from the first side to the second side, and defines a leading surface and a trailing surface. A method includes cutting with a tool having a blade coupled to a tool body, and a cutting element coupled to a forward surface of the blade. The cutting element has a leading cutting edge formed at an intersection of front and leading faces, and an undulating back-up cutting edge formed in the front face and defining leading and trailing surfaces. The leading cutting edge of the cutting element contacts and cuts a work piece.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: December 6, 2016
    Assignee: Smith International, Inc.
    Inventors: Charles Grigor, Kenneth M. Nevlud
  • Patent number: 9151136
    Abstract: A system and method facilitate sidetracking by eliminating one or more trips downhole. A sidetracking system includes a whipstock assembly and a stinger assembly. The stinger assembly has a running/stinger assembly which extends at least partially through the whipstock assembly. The running/stinger assembly is designed for disconnection from the whipstock assembly after delivery downhole. After disconnecting the stinger assembly, the sidetracking system enables delivery of cement slurry down through the stinger assembly to form a cement plug at a desired location.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: October 6, 2015
    Assignee: Smith International, Inc.
    Inventor: David L. Ervin
  • Patent number: 9038713
    Abstract: A shaped charge casing cutter is constructed with the cutter explosive formed into radial section modules aligned in a toroidal cavity between a pair of housing plates. The center sections of the plates are contiguously aligned with opposite parallel surfaces of a center disc. The plate rims are offset from respective center disc planes in opposite directions from each other to form a toroidal cavity. The toroidal cavity is enclosed by a circumferential belt secured to said plate rims. V-grooved shaped charge explosive in the form of multiple pi sections is distributed about the cavity to intimately contact a pair of frusto-conical liners.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: May 26, 2015
    Inventors: William T. Bell, James G. Rairigh
  • Patent number: 8985230
    Abstract: A lock holds a movable member in position to a stationary member. The set position of the tool is held while being configured to release with the capability of being reset in the same trip to lock a set position of the tool in the same or a new location.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: March 24, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: Stephen L. Crow, Christopher W. Guidry, William A. Hered
  • Publication number: 20150053391
    Abstract: A downhole tool includes a radial expansion assembly deployed about, and configured to rotate substantially freely with respect to, a tool mandrel. The expansion assembly includes at least one stabilizer block configured to extend radially outward from the mandrel into contact with a wellbore casing string. When deployed between uphole and downhole cones, the stabilizer block includes a plurality of angled splines configured to engage corresponding splines on the cones. Relative axial motion between the stabilizer block and the cones causes a corresponding radial extension or retraction of the stabilizer block.
    Type: Application
    Filed: October 31, 2014
    Publication date: February 26, 2015
    Inventors: James A. Simson, Ronald G. Schmidt, Charles H. Dewey
  • Patent number: 8955597
    Abstract: A method of abandoning a borehole includes, running a tool into the borehole, cutting a casing with a first portion of the tool, reaming the borehole in an area where the casing has been cut with a second portion of the tool, disconnecting a drillstring from the tool, and cementing the borehole through the drillstring.
    Type: Grant
    Filed: June 6, 2011
    Date of Patent: February 17, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: Paul L. Connell, Erik Vilhelm Nordenstam
  • Patent number: 8936088
    Abstract: A coiled tubing cutter assembly comprises a housing configured to be inserted in a length of coiled tubing. The housing forms a main bore and a first pathway through which cutting fluid can flow through the housing and be directed to impinge against an inner surface of the coiled tubing over which the housing is positioned so as to cut the coiled tubing. A sleeve is positioned in the main bore. The sleeve is movable between a first position and a second position within the main bore. The sleeve is configured so as to block the first pathway when in the first position and to allow cutting fluid to pass through the first pathway in the second position. A method of cutting coiled tubing is also disclosed.
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: January 20, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: John Misselbrook, Manfred Sach, Jason Skufca
  • Patent number: 8931555
    Abstract: There is described a device for machining apparatus arranged for machining of a portion of a casing positioned in a wellbore, wherein a return fluid conduit extends from the machining apparatus in a direction toward a deposit area arranged in the wellbore. Also described is a method for machining of a portion of a casing positioned in a wellbore, wherein the method comprises the steps of: arranging a return fluid conduit between a machining apparatus and a deposit area or an area connected to the deposit area, providing a particle carrying liquid flow (M) in a direction from the machining apparatus and toward the deposit area, during the machining of the casing leading metal shavings into the liquid flow (M), and directing the liquid flow (M) into the return fluid conduit, as the metal shavings are held back and deposited in the wellbore.
    Type: Grant
    Filed: April 12, 2010
    Date of Patent: January 13, 2015
    Assignee: West Production Technology AS
    Inventors: Helge Krohn, Mads Grinrød
  • Patent number: 8915298
    Abstract: A tool is run in with a bottom hole assembly that includes a seal and support within the tubing where a fish is to be milled. A ported sub allows pressurized fluid pumped from the surface to enter the bottom hole assembly above the sealed support location and to be directed to set an anchor and to a fluid driven motor such as a progressive cavity motor that is in turn connected milling tool at the rotor of the progressive cavity motor. The fluid exiting the stator goes through a debris removal device and can return to the surface through an annulus around the production tubing. A telescoping joint allows the mill to axially progress with a force applied to the fish generated by a tractor or a stack of Belleville washers.
    Type: Grant
    Filed: August 16, 2012
    Date of Patent: December 23, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Mary L. Laird, Robbie B. Colbert, David W. Coleman
  • Patent number: 8910713
    Abstract: Devices and methods for deploying perforating guns through a wellhead production assembly and into a wellbore. In particular embodiments, the invention provides devices and methods for deploying multiple perforating guns through a wellhead production assembly. In the event that the perforating gun assembly is dropped into the wellhead production assembly, a safety clamp will land upon a landing profile within a deployment riser, preventing the perforating gun assembly from falling into the wellbore.
    Type: Grant
    Filed: July 21, 2012
    Date of Patent: December 16, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Stephen N. Zuklic, Bengisu Abramsky, Garry Kaiser, William D. Myers, Jr.
  • Patent number: 8893791
    Abstract: A cut-and-pull spear is configured to obtain multiple grips in a tubular to be cut in tension. A lock feature holds the set position of the slips and seal. The lock can be defeated with an axial force that retracts a spring-loaded dog, and the lock can be reset to the run-in position, with the slips and seal retracted, so that the assembly can be repositioned in the same trip for another cut. A cam surface prevents setting the slips and seal until the spear is relocated to the next desired cut location or removed from the wellbore. The lock can be defeated with picking up or with a pressuring up on a dropped ball for an emergency release. A surface signal of the release is provided by a stack of disc springs that have to be compressed to release the lock.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: November 25, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Stephen L. Crow, Christopher W. Guidry, William A. Hered
  • Publication number: 20140332200
    Abstract: A wellbore casing cutting tool, having multiple blades which rotate outwardly by a fluid operated mechanism, has multiple cutters on each blade. The cutters are preferably positioned on the blades such that the lowermost cutting edges of multiple cutters all bear on the surface of the casing being cut. The cutters are preferably made with a metal base, covered with hardened cutting material such as tungsten carbide or hardened cutting buttons. The metal wears away as cutting progresses, continually exposing fresh cutting surfaces. The multiple cutters permit cutting of long windows in casing walls, and the structure of the cutters results in relatively short metal cuttings, rather than long metal cuttings which can ball up downhole.
    Type: Application
    Filed: September 28, 2012
    Publication date: November 13, 2014
    Applicant: Deltide Energy Services, LLC
    Inventor: David J. Ruttley
  • Patent number: 8881818
    Abstract: A cut and pull spear is configured to obtain multiple grips in a tubular to be cut under tension. The slips are set mechanically with the aid of drag blocks to hold a portion of the assembly while a mandrel is manipulated. An annular seal is set in conjunction with the slips to provide well control during the cut. An internal bypass around the seal can be in the open position to allow circulation during the cut. The bypass can be closed to control a well kick with mechanical manipulation as the seal remains set. If the tubular will not release after an initial cut, the spear can be triggered to release and be reset at another location. The mandrel is open to circulation while the slips and seal are set and the cut is being made. Cuttings are filtered before entering the bypass to keep the cuttings out of the blowout preventers.
    Type: Grant
    Filed: May 16, 2011
    Date of Patent: November 11, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Stephen L. Crow, Marcelle H. Hedrick, Erik V. Nordenstam, Christopher W. Guidry
  • Patent number: 8881819
    Abstract: A cut and pull spear is configured to obtain multiple grips in a tubular to be cut under tension. The slips are set mechanically with the aid of drag blocks to hold a portion of the assembly while a mandrel is manipulated. An annular seal is set in conjunction with the slips to provide well control during the cut. An internal bypass around the seal can be in the open position to allow circulation during the cut. The bypass can be closed to control a well kick with mechanical manipulation as the seal remains set. If the tubular will not release after an initial cut, the spear can be triggered to release and be reset at another location. The mandrel is open to circulation while the slips and seal are set and the cut is being made. Cuttings are filtered before entering the bypass to keep the cuttings out of the blowout preventers.
    Type: Grant
    Filed: May 16, 2011
    Date of Patent: November 11, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Stephen L. Crow, Marcelle H. Hedrick, Erik V. Nordenstam, Christopher W. Guidry
  • Patent number: 8869896
    Abstract: A cut and pull spear is configured to obtain multiple grips in a tubular to be cut under tension. The slips are set mechanically with the aid of drag blocks to hold a portion of the assembly while a mandrel is manipulated. An annular seal is set in conjunction with the slips to provide well control during the cut. An internal bypass around the seal can be in the open position to allow circulation during the cut. The bypass can be closed to control a well kick with mechanical manipulation as the seal remains set. If the tubular will not release after an initial cut, the spear can be triggered to release and be reset at another location. The mandrel is open to circulation while the slips and seal are set and the cut is being made. Cuttings are filtered before entering the bypass to keep the cuttings out of the blowout preventers.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: October 28, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Stephen L. Crow, Marcelle H. Hedrick, Erik V. Nordenstam, Christopher W. Guidry
  • Patent number: 8863851
    Abstract: A grapple device is secured to a mill to allow relative rotation between them. The grapple has an outward bias to allow it to grip the packer bore or an extension from the packer. The mandrel has a wedge adjacent its lower end and torque fingers that fit between grapple segments when relative longitudinal movement occurs between the mandrel and the grapple assembly. The grapple assembly has a left hand thread so that it comes out of the packer if the mandrel engages the grapple assembly in a manner for tandem rotation. The torque fingers on the wedge on the mandrel support the grapple fingers over their length as rotation to the right removes the grapple assembly from the packer bore. Reverse circulation takes away the cuttings into the mill bore where they are separated from the reverse circulating fluid.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: October 21, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: John P. Davis, Gerald D. Lynde
  • Patent number: 8839864
    Abstract: Tools and methods for cutting multiple, co-extending casings in oil and gas wells. The tools comprise a cylindrical body and first and second sets of cutting blades. Each set of cutting blades is mounted to the body for actuation from a retracted, run-in position to an extended, cutting position. The cylindrical body is rotated and the first set of cutting blades is actuated to cut the co-extending casings within a first sweep diameter. The second set of cutting blades then is actuated to cut the co-extending casings beyond the first sweep diameter and within a second sweep diameter.
    Type: Grant
    Filed: November 7, 2012
    Date of Patent: September 23, 2014
    Inventor: Douglas T. Beynon
  • Publication number: 20140251616
    Abstract: A packoff device is disclosed for sealing an annulus within a wellbore, and for bypassing the sealed annulus. The packoff device may include a mandrel having a bore formed axially therethrough and first and second ports extending radially from the bore. A sealing element that extends radially-outwardly from the mandrel may be positioned axially between the first and second ports, and may create a seal within an annulus between the mandrel and a casing, to isolate a portion of the annulus above the sealing element from a portion below the sealing element. A sleeve within the bore may, with the mandrel, form a channel providing fluid communication between the first and second ports. The sleeve may be movable between open and closed states. The first and second ports may be unobstructed by the sleeve in the open state, one or more may be obstructed in the closed state.
    Type: Application
    Filed: March 3, 2014
    Publication date: September 11, 2014
    Applicant: SMITH INTERNATIONAL, INC.
    Inventors: Timothy M. O'Rourke, Jonathan Park
  • Publication number: 20140251615
    Abstract: A window milling system can include a window mill having selectively retractable and extendable blades, and a whipstock assembly having a receptacle therein, the window mill being secured relative to the whipstock assembly the blades are received in the receptacle. A method of cutting a window through a wellbore lining can include cutting through the lining with a window mill, then retracting blades of the window mill, and then outwardly extending the blades in a whipstock assembly, thereby securing the whipstock assembly to the window mill. A window mill can include multiple blades adapted for cutting through a wellbore lining, the blades being outwardly extendable relative to a body of the window mill in a well. Another method of cutting a window through a wellbore lining can include a window mill drilling a wellbore outward a substantial distance from the window after the window mill cutting through the lining.
    Type: Application
    Filed: February 4, 2014
    Publication date: September 11, 2014
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Stacey B. DONOVAN, William W. DANCER
  • Patent number: 8820396
    Abstract: An ultra-high pressure (UHP) cutting device for insertion into a wellbore for cutting the casing of the wellbore from within the wellbore is provided. The cutting device comprises a UHP hose connector for connection with a UHP hose in communication with a fluid source; a rotatable UHP tube with a top end in fluid communication with the UHP hose connector and a bottom end opposite the top end; a rotating means in operational communication with the UHP tube for rotating the UHP tube during operation of the cutting device; and a cutter head in fluid communication with the bottom end of the UHP tube.
    Type: Grant
    Filed: November 9, 2011
    Date of Patent: September 2, 2014
    Assignee: NuWave Industries Inc.
    Inventors: Sandy Cumby, Tim Sharp, Troy Illingworth
  • Patent number: 8757262
    Abstract: An apparatus for abrasive jet cutting comprises an abrasive jet perforating tool coupled rotatably to a tubing string and a horizontal indexing tool coupled connectably to the perforating tool. A tubing swivel, an extension tool with protective sleeve, and an anchor may also be used. A method for abrasive jet cutting comprises determining well parameters for a well; assembling, according to the well parameters, the apparatus for abrasive jet perforating; and using the perforating tool to perforate tubular members in the well. A horizontal indexing tool is used to rotate the perforating tool and the perforating tool is used to cut tubular members in the well. An extension tool with a protective sleeve is used to protect the apparatus. A tubing swivel may be used to allow the perforating tool to rotate freely and an anchor may be used to prevent the perforating tool from moving vertically.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: June 24, 2014
    Assignee: TD Tools, Inc.
    Inventor: Thomas L. Dotson
  • Publication number: 20140138091
    Abstract: Devices and methods for cleaning or removing cuttings from a cut as cutting is being performed.
    Type: Application
    Filed: November 20, 2012
    Publication date: May 22, 2014
    Applicant: Baker Hughes Incorporated
    Inventor: Karsten Fuhst
  • Publication number: 20140138083
    Abstract: Devices and methods for cutting a workpiece. A cutter is provided with a fluid jet generator that creates and projects a jet of fluid proximate the cut being made in a workpiece.
    Type: Application
    Filed: February 4, 2013
    Publication date: May 22, 2014
    Applicant: BAKER HUGHES INCORPORATED
    Inventor: Baker Hughes Incorporated
  • Publication number: 20140124202
    Abstract: Tools and methods for cutting multiple, co-extending casings in oil and gas wells are provided. The tools comprise a cylindrical body and first and second sets of cutting blades. Each set of cutting blades is mounted to the body for actuation from a retracted, run-in position to an extended, cutting position. The cylindrical body is rotated and the first set of cutting blades is actuated to cut the co-extending casings within a first sweep diameter. The second set of cutting blades then is actuated to cut the co-extending casings beyond the first sweep diameter and within a second sweep diameter.
    Type: Application
    Filed: November 7, 2012
    Publication date: May 8, 2014
    Inventor: Douglas T. Beynon
  • Patent number: 8662182
    Abstract: The present invention generally relates to methods and apparatus for subsea well intervention operations, including retrieval of a wellhead from a subsea well. In one aspect, a method of performing an operation in a subsea well is provided. The method comprising the step of positioning a tool proximate a subsea wellhead. The tool has at least one grip member and the tool is attached to a downhole assembly. The method also comprising the step of clamping the tool to the subsea wellhead by moving the at least one grip member into engagement with a profile on the subsea wellhead. The method further comprising the step of applying an upward force to the tool thereby enhancing the grip between the grip member and the profile on the subsea wellhead. Additionally, the method comprising the step of performing the operation in the subsea well by utilizing the downhole assembly.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: March 4, 2014
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Thomas M. Redlinger, Andrew Antoine, My Le, Richard J. Segura
  • Publication number: 20140034317
    Abstract: A section mill for removing a portion of a casing in a wellbore. The section mill may include a body having a first end portion, a second end portion, and a bore formed axially therethrough. A plurality of blades may be coupled to the body. Each of the blades may have a first end portion and a second end portion. The first end portion of each blade may be coupled to the body via a hinge pin, and the second end portion of each blade may have a cutting surface formed thereon. A seat may be formed within the bore. The blades may be adapted to actuate from an inactive position to an active position in response to an impediment forming a seal against the seat.
    Type: Application
    Filed: July 30, 2013
    Publication date: February 6, 2014
    Applicant: SMITH INTERNATIONAL, INC.
    Inventor: Stephen Hekelaar
  • Publication number: 20140014368
    Abstract: The present invention relates to a downhole driving unit (11) (for insertion into a well, comprising a driving unit housing (51), an arm assembly (60) movable between a retracted position and a projecting position in relation to the driving unit housing, an arm activation assembly (41) arranged in the driving unit housing for moving the arm assembly between the retracted position and the projecting position and a wheel assembly (90) comprising a stationary part (91) and a rotational part (92), the stationary part being connected with or forming part of the arm assembly and being rotatably connected with a rotational part. The wheel assembly comprises a hydraulic motor comprising a hydraulic motor housing (93) and a rotatable section (84) connected with the rotational part for rotating part of the wheel assembly. Furthermore, the present invention relates to a downhole system comprising said driving unit and to use of such driving unit.
    Type: Application
    Filed: March 29, 2012
    Publication date: January 16, 2014
    Applicant: WELLTEC A/S
    Inventor: Jørgen Hallundbæk
  • Publication number: 20140014366
    Abstract: The present invention relates to a downhole driving unit (11) for insertion into a well, comprising a driving unit housing (51), a hydraulic motor comprising a hydraulic motor housing (93), the hydraulic motor comprising a cam ring (24), a wheel assembly (90) comprising a stationary part (91) and a rotational part, the stationary part (92) being connected with the driving unit housing and a rotatably connected with a rotational part, the stationary part and the rotational part constituting the hydraulic motor housing, said hydraulic motor comprising a rotatable section (84) connected with the rotational part, the cam ring being connected with or forming part of the stationary part of the wheel assembly, the rotational part comprising a wheel ring (99), where in a bearing (36) is arranged between the cam ring and the wheel ring. The present invention also relates to a downhole system comprising the driving unit and to use of such driving unit.
    Type: Application
    Filed: March 29, 2012
    Publication date: January 16, 2014
    Applicant: WELLTEC A/S
    Inventor: Jørgen Hallundbæk
  • Publication number: 20140014365
    Abstract: The present invention relates to a downhole driving unit (11) for insertion into a well, comprising a driving unit housing (51), a hydraulic motor (23) comprising a hydraulic motor housing (93), a wheel assembly (90) comprising a stationary part (91) and a rotational part (92), the stationary part being connected with the driving unit housing and being rotatably connected with a rotational part, the wheel assembly comprising a wheel ring (99) for contacting an inner wall in the well and connected with or forming part of the rotations part. The wheel assembly further comprises the hydraullic motor (23) so that the stationary part and the rotational part constitute the hydraulic motor housing, the hydraulic motor comprising a rotatable section (84) connected with the rotational part for rotating part of the wheel assembly.
    Type: Application
    Filed: March 29, 2012
    Publication date: January 16, 2014
    Applicant: WELLTEC A/S
    Inventor: Jørgen Hallundbæk
  • Publication number: 20140008129
    Abstract: A drilling assembly includes a hydraulic jet disposed on a downhole end of a fluid line, and one or more adjustable jet nozzles on the hydraulic jet in multiple angular orientations relative to a central axis of the hydraulic jet. The one or more adjustable jet nozzles provide fluid pressure to penetrate a formation and cut multiple angular channels.
    Type: Application
    Filed: July 5, 2013
    Publication date: January 9, 2014
    Inventor: Henk H. Jelsma
  • Patent number: 8621731
    Abstract: The machining device is for machining the material of a pipe system that has a joint area between a pipe that has a smaller inner diameter and a pipe that has a larger inner diameter. The device has protruding parts that have been adapted to position the device inside the pipe that has the smaller diameter. A steerable actuator is adapted for removing material from the joint area and steering device for controlling the direction of the machining device in relation to the longitudinal axis of the pipe that has the smaller inner diameter while removing material from the joint area. The method is for machining material of the joint area that has a thinner and a thicker pipe.
    Type: Grant
    Filed: April 23, 2010
    Date of Patent: January 7, 2014
    Assignee: Picote Oy Ltd
    Inventor: Mika Lokkinen
  • Patent number: 8602101
    Abstract: A downhole pipe cutting tool includes a tool body having a piston assembly disposed in a central bore thereof, wherein the piston assembly is configured to translate longitudinally along the central axis of the tool body, and a plurality of cutter knife sets. Each of the plurality of cutter knife sets includes at least two individual cutter knives circumferentially spaced about a central axis of the tool body and is configured to selectively engage with the piston assembly to extend outward to perform pipe cutting operation.
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: December 10, 2013
    Assignee: Smith International, Inc.
    Inventors: Kenneth Gibson, Stephen Hekelaar
  • Patent number: 8590618
    Abstract: An apparatus and system for a single run process for well installations to cut or mill away a section of the casing of a well and then position an attached deflecting device to form radial boreholes or passages in a production formation that is intersected by the wellbore. This invention allows the lateral boreholes to be selectively oriented angularly upwardly or downwardly in relation to the casing space that has been formed or oriented in selectively radially spaced relation if desired.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: November 26, 2013
    Assignee: Radial Drilling Services, Inc.
    Inventor: Henk H. Jelsma
  • Publication number: 20130292108
    Abstract: A section mill features extendable cutting blades and centering blades that are pressure actuated for sequential extension of the centering blades before the cutting blades. Applied pressure results in flow through a flow restriction that creates a force on return springs associated with the centering and the cutting blades. The springs allow extension of the centering blades before the cutting blades. Another spring returns a mandrel to the run in position on cessation of flow. The blades are extended or retracted with a rack and pinion drive system.
    Type: Application
    Filed: May 2, 2013
    Publication date: November 7, 2013
    Inventor: Floyd J. Hutchinson
  • Publication number: 20130220615
    Abstract: Implementations of the present invention include an internal tubing cutter including ramp surface(s) and roller that cause cutters to move linearly between retracted and deployed positions. The linear actuation of the cutters can allow for more robust cutting and increased cutting efficiency. Implementations of the present invention also include cutting systems including an internal tubing cutter, and methods of cutting tubular members, such as borehole casings and drill strings, using such drilling systems.
    Type: Application
    Filed: February 23, 2012
    Publication date: August 29, 2013
    Applicant: LONGYEAR TM, INC.
    Inventors: Christopher L. Drenth, George Ibrahim, Anthony Lachance
  • Publication number: 20130199785
    Abstract: A downhole cutting tool includes a tool body and a plurality of cutter knife sets, each of the plurality of cutter knife sets configured to extend outwardly to separately perform a pipe cutting operation. A first cutter knife set has a diameter in an extended position larger than a diameter in an extended position of a second cutter knife set. A method includes running the downhole cutting tool into a wellbore, deploying the first set of expandable cutting arms to an extended position and engaging the extended expandable cutting arms with a first work piece, rotating the downhole cutting tool and cutting the first work piece, deploying the second set of expandable cutting arms during a single trip into the wellbore to an extended position and engaging the extended expandable cutting arms with a second work piece, and rotating the downhole cutting tool and cutting the second work piece.
    Type: Application
    Filed: March 15, 2013
    Publication date: August 8, 2013
    Applicant: SMITH INTERNATIONAL, INC.
    Inventor: SMITH INTERNATIONAL, INC.
  • Publication number: 20130199784
    Abstract: A cutting apparatus and method to facilitate milling of a casing window by improving the interaction between the mill and the casing. The cutting apparatus comprises a whipstock having a plurality of ramp sections which provide a ramp profile arranged and designed to cooperate with the cutting structure of a mill to achieve a desired loading on the mill cutting elements during milling of the casing window. The plurality of ramp sections, having specific lengths and oriented at specific angles, adjust the loading on the mill as the mill cuts through the casing during formation of the casing window. The improved whipstock maintains a more balanced loading across the cutting elements during milling operations. Additional mill cutting structures, including one or more disclosed herein, may also be selected and evaluated to further balance the cutting load during window milling.
    Type: Application
    Filed: July 31, 2012
    Publication date: August 8, 2013
    Applicant: SMITH INTERNATIONAL, INC.
    Inventors: Shantanu N. Swadi, John E. Campbell, Shelton W. Alsup
  • Patent number: 8469097
    Abstract: A tubular cutter that cuts with extendable and rotating blades has its depth of cut limited upon getting through the tubular to be cut. In a preferred embodiment, the tubular has a loosely mounted member exterior thereto to be engaged by the rotating cutters. When such engagement happens the effect is that the loosely mounted member serves as a cover to the cutters to prevent them from cutting other structures beyond the tubular to be cut. The loosely mounted member is grabbed by the rotating blades for tandem rotation this preventing further cutting action. The load on the mill drops noticeably so that surface personnel have a signal to stop hydraulic pressure to the drive mechanism to allow the blades to retract and the cutter to be removed.
    Type: Grant
    Filed: May 14, 2009
    Date of Patent: June 25, 2013
    Assignee: Baker Hughes Incorporated
    Inventors: Travis E. Cochran, Steven R. Hayter, Steve Rosenblatt
  • Patent number: 8459357
    Abstract: A mill for milling a window through metal casing in a well bore that includes a body having a plurality of blades; a plurality of cylindrically bodied cutting elements on said blades; and a plurality of diamond enhanced elements having a non-planar diamond working surface on said blades; wherein said cutting elements initiate cutting into said casing and mill said window into said well bore.
    Type: Grant
    Filed: May 3, 2010
    Date of Patent: June 11, 2013
    Assignee: Smith International, Inc.
    Inventors: Charles H. Dewey, Praful C. Desai
  • Patent number: 8403048
    Abstract: A tubing cutter is run in with a bottom hole assembly that includes a seal and support within the tubing to be cut. A ported sub allows pressurized fluid pumped from the surface to enter the bottom hole assembly above the sealed support location and to be directed to set an anchor and to a fluid driven motor such as a progressive cavity motor that is in turn connected to the tubing cutter at the rotor of the progressive cavity motor. The rotation of the cutter with its blades extended cuts the tubular as the fluid exiting the stator goes to the lower end of the tubing being cut and can return to the surface through an annulus around the tubing to be cut. Other configurations such as cutting casing or cutting casing through tubing are also envisioned.
    Type: Grant
    Filed: June 7, 2010
    Date of Patent: March 26, 2013
    Assignee: Baker Hughes Incorporated
    Inventors: Mary L. Laird, Robbie B. Colbert
  • Publication number: 20130048268
    Abstract: A cut-and-pull spear is configured to obtain multiple grips in a tubular to be cut in tension. A lock feature holds the set position of the slips and seal. The lock can be defeated with an axial force that retracts a spring-loaded dog, and the lock can be reset to the run-in position, with the slips and seal retracted, so that the assembly can be repositioned in the same trip for another cut. A cam surface prevents setting the slips and seal until the spear is relocated to the next desired cut location or removed from the wellbore. The lock can be defeated with picking up or with a pressuring up on a dropped ball for an emergency release. A surface signal of the release is provided by a stack of disc springs that have to be compressed to release the lock.
    Type: Application
    Filed: August 31, 2011
    Publication date: February 28, 2013
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Stephen L. Crow, Christopher W. Guidry, William A. Hered
  • Publication number: 20130037256
    Abstract: The circulation system for a rotary shoe features a fluid diversion to a peripheral zone from which the flow is directed by tubes or housing bores to the vicinity of the cutting structure to improve cooling and removal of debris. Some of the fluid is directed straight through into the mandrel of the tool being milled. If the formation below is at low pressure a packer cup is added to the grip tool attached to the shoe at one end and to the fish at the other end. A swivel is used to prevent the packer cup rotation. Fluid diverted by the packer cup comes up out of the mandrel and into an annular space between the mandrel and the inner wall of the shoe and out from under the shoe by flowing past the cutters. Fluid loss to the formation is minimized and cooling and cutting removal is enhanced.
    Type: Application
    Filed: August 12, 2011
    Publication date: February 14, 2013
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Steven G. Blair, Stephen K. Harmon
  • Publication number: 20120325480
    Abstract: A dual string section milling tool includes a cutting block deployed in an axial recess in a tool body. The cutting block is configured to extend radially outward from and retract radially inward towards the tool body. The cutting block is further configured to remove a cement layer in a wellbore. The dual string section milling tool further includes a milling blade deployed in an axially slot disposed in the cutting block. The milling blade is configured to extend radially outward from and inwards towards the cutting block. The milling blade is further configured to cut and mill a section of casing string. The dual string section milling tool may be further configured to simultaneously remove cement and mill a wellbore tubular.
    Type: Application
    Filed: June 8, 2012
    Publication date: December 27, 2012
    Applicant: SMITH INTERNATIONAL, INC.
    Inventors: Ronald G. Schmidt, Charles H. Dewey
  • Patent number: 8336612
    Abstract: Methods for severing a tubular string having a cable in association therewith can include lowering a cutting apparatus into the tubular string and actuating the cutting apparatus to form a cut in the tubular string and sever the cable. Severing the cable in this manner can be performed through a single actuation of a single cutting apparatus, enabling at least a portion of the tubular string to be subsequently severed and retrieved, unimpeded by the cable.
    Type: Grant
    Filed: September 16, 2011
    Date of Patent: December 25, 2012
    Assignee: Robertson Intellectual Properties, LLC
    Inventors: Michael C. Robertson, William Boelte