Freeing Stuck Object, Grappling Or Fishing In Well Patents (Class 166/301)
  • Patent number: 9540895
    Abstract: A friction reduction assembly for a downhole tubular. The friction reduction assembly includes an electrically activated friction reduction sub. The sub includes a flowbore fluidically connected to a flowbore of the tubular and remaining open for fluid flow therethrough during both activated and non-activated states of the friction reduction sub. A friction reducer responsive to an indication of lockup of the tubular, wherein friction between the tubular and surrounding casing or borehole is reduced in an electrically activated state of the friction reduction sub. A method of reducing friction in a downhole tubular is also included.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: January 10, 2017
    Assignee: BAKER HUGHES INCORPORATED
    Inventors: Gordon R. Mackenzie, Graeme K. Kelbie
  • Patent number: 9494005
    Abstract: A debris removal device for subterranean use features a debris laden inlet tube within a housing to define a debris collection space at the lower end of the housing. An eductor draws the debris laden fluid to the top of the inlet tube where the flow stream is returned to a downhole direction with discrete passages formed between the housing and the inlet tube by spaced parallel plates. The plates feature extending tabs on diametrically opposed lower ends of the plates. As a result flow heading back downhole can release debris and turn back uphole in passages defined between the outside of the plates and the inside wall of the housing. The tabs allow the flow turning uphole to make a greater radius turn because of a crossing over effect created by the tabs. There is less turbulence and narrower width to the flowing stream going uphole.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: November 15, 2016
    Assignee: Baker Hughes Incorporated
    Inventor: Calvin J. Stowe
  • Patent number: 9470044
    Abstract: A process for treating a pin having an external threaded portion and a box having an internal threaded portion wherein the process provides a threadable joint having a high galling resistance. One embodiment of the present invention includes applying a lubricant on the threaded portion of at least one of the pin and box. The threadable joint is made up by threadably engaging the threaded portions of the pin and box to a recommended torque according to the American Petroleum Institute and then breaking out the threaded joint. The making up and breaking out step with lubricant applied on the threaded portion of at least one of the pin and box is performed a plurality of times. One of the threaded portions of the pin and box is then case hardened. The threadable joint made from this process is highly resistant to galling without the requirement of any lubricant.
    Type: Grant
    Filed: July 6, 2015
    Date of Patent: October 18, 2016
    Assignee: Pegasis S.r.l.
    Inventors: Alberto Alaria, Angelo Canavera
  • Patent number: 9470045
    Abstract: What is provided is a method and apparatus wherein a rotating and reciprocating swivel can be detachably connected to an annular blowout preventer thereby separating the drilling fluid or mud into upper and lower sections with the mandrel of the swivel being comprised of double box end joints and using double pin end subs to connect a plurality of such mandrel joints together.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: October 18, 2016
    Assignee: Mako Rentals, Inc.
    Inventors: Kip M. Robichaux, Kenneth G. Caillouet, Terry P. Robichaux
  • Patent number: 9470065
    Abstract: Expandable brushes for cleaning a surrounding tubular member. Brushes include a housing to be disposed within the surrounding tubular member and a brush shoe that retains at least one brush bristle, the brush shoe being radially moveable with respect to the housing between a radially retracted position and a radially expanded position.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: October 18, 2016
    Assignee: BAKER HUGHES INCORPORATED
    Inventors: Samuel K. Kruger, Joseph Cottrell, George N. Kreig
  • Patent number: 9394778
    Abstract: The present disclosure relates, according to some embodiments, to apparatus, systems, and methods of fracturing a geological structure including the application of kinetic energy (e.g., from high velocity frack fluid) to a subterranean structure. In some embodiments, the present disclosure relates to apparatus, systems, and methods for delivery of high velocity fluid to a well using a down hole valve and/or throttling system. The present disclosure relates to apparatus, systems, and methods of generating pressure using accumulators (e.g., high pressure accumulators) at the surface of a well.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: July 19, 2016
    Inventor: Edward O. Anders
  • Publication number: 20150144335
    Abstract: Apparatuses and methods for retrieving a tool or bottom hole assembly. The apparatus may include a latching device that couples to a tool or bottom hole assembly to be retrieved and at least one seal extending radially from the apparatus to engage an inner diameter of a tubular, such as a casing string. A pump inlet is disposed in or through an outer surface of the apparatus uphole of the at least one seal. A pump outlet is disposed in or through an outer surface of the apparatus downhole of the at least one seal. The apparatus may also include a pump for pumping a drilling fluid from the pump inlet to the pump outlet in order to generate a differential pressure across the at least one seal and provide a hydraulic force to effect retrieval of the tool or bottom hole assembly.
    Type: Application
    Filed: November 19, 2014
    Publication date: May 28, 2015
    Inventor: Erik P. Eriksen
  • Publication number: 20150136398
    Abstract: A retrieval tool may include a body having a first end portion and a second end portion. A protrusion may extend laterally from the body proximate the second end portion of the body. The protrusion may have an engaging surface, two opposing side surfaces, and an outer surface. A path of fluid communication may extend from the first end portion of the body, through the body and the protrusion, to an engaging surface of the protrusion. A method for moving a downhole tool in a wellbore may include running a retrieval tool into a wellbore and pumping fluid to the retrieval tool. The retrieval tool may be engaged with the downhole tool, which may cause a path of fluid communication to experience a change in fluid pressure.
    Type: Application
    Filed: November 18, 2014
    Publication date: May 21, 2015
    Inventors: Thomas J. Armstrong, John E. Campbell, Shantanu N. Swadi
  • Publication number: 20150129220
    Abstract: An apparatus configured to impart a force on a downhole component, having a piston configured to expand from a movement of a drilling fluid in a downhole environment, a weight configured to move from a first position to a second position, wherein the weight contacts the piston and the piston is configured to move the weight from the first position to the second position when the piston expands from movement of the drilling fluid, a spring configured to contact a bearing surface and the weight, wherein movement of the weight toward the second position compresses the spring, a return spring configured to impart a force on the weight to return the weight to the first position from the second position and a trigger mechanism configured to actuate a return of the weight from the second position to the first position by the return spring.
    Type: Application
    Filed: November 13, 2013
    Publication date: May 14, 2015
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: NATHAN LANDSIEDEL
  • Patent number: 9027645
    Abstract: Fishing tools for retrieving objects, i.e., “fish,” lodged within a wellbore are disclosed. The fishing tool comprises a tubular member having a tubular member bore with at least one profiled surface or insert disposed within or along the inner wall surface of the tubular member bore. The profiled surface or insert provides a fishing profile shaped to allow a portion of the fish to move past the fishing profile so that the fishing profile is disposed below the portion of the fish. The tubular member can then be actuated, such as through rotation, to align the portion of the fish with a shoulder of the fishing profile. Upward movement of the tool engages the shoulder with the portion of the fish. Continued upward movement of the tool facilitates retrieval of the fish from the wellbore.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: May 12, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: Joe Phillip Moidel, Jimmy D. Ryan, Clyde F. Akers, James A. Sonnier, Eric P. Rogers
  • Publication number: 20150114643
    Abstract: A jar assembly for use downhole includes a housing, a piston assembly slidable within and selectively coupled to the housing, a mandrel assembly coupled on a lower end of the piston assembly, and an anvil coupled to an end of the mandrel assembly opposite the piston assembly. The jar assembly is deployed in a wellbore by a conveyance means that couples with the housing. A hydraulic circuit in the piston assembly activates a latch for decoupling the piston assembly from the housing; when decoupled, the housing slides downward and impacts the anvil to generate a jarring force. The jar assembly is re-cocked by raising it with the conveyance means.
    Type: Application
    Filed: October 28, 2013
    Publication date: April 30, 2015
    Inventor: Keith McNeilly
  • Publication number: 20150114644
    Abstract: A downhole tool conveyed via tubing within a wellbore at a wellsite comprises a hydraulic tool driven by fluid pumped to the hydraulic tool via the tubing. The downhole tool further comprises a valve in fluid communication between the tubing and the hydraulic tool. The valve is configurable in the wellbore between an expanded position, establishing a bypass diverting at least a portion of the pumped fluid away from the hydraulic tool, and a compressed position, closing the bypass.
    Type: Application
    Filed: October 28, 2013
    Publication date: April 30, 2015
    Applicant: Schlumberger Technology Corporation
    Inventors: Mark C. Oettli, L. Michael McKee, Robert L. Bucher, III, Mohammad Hajjari
  • Publication number: 20150107825
    Abstract: A downhole system including a downhole device for data acquisition during fracing operations is disclosed. It includes a bypass device (102) operatively coupleable to for instance a frac plug (10) and is adapted to allow downhole fluid flow through the bypass device (102) and frac plug (10) but also permits the closure of that path whilst providing at least one second fluid path (120) for fluid communication between at least one data acquisition device (108) provided to detect at least one physical property such as pressure and a region inside the wellbore located uphole of the bypass device (102).
    Type: Application
    Filed: July 27, 2012
    Publication date: April 23, 2015
    Applicant: OMEGA WELL MONITORING LIMITED
    Inventors: James Lewellyn Miller, Douglas R. Berrett
  • Patent number: 9010427
    Abstract: A hang-off tool for supporting a tool inside a tubular member includes a logging string configured to generate logging data, a computing system coupled to the logging string and configured to communicate the logging data to another tool, and a radially expandable member having a retracted position and an expanded position. The radially expandable member is configured to engage a radially-increased profile of an inner surface of the tubular member in the expanded position to support the hang-off tool. The radially expandable member is also configured not to engage the radially-increased profile in the retracted position.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: April 21, 2015
    Assignee: Schlumberger Technology Corporation
    Inventors: Jonathan Macrae, Bulent Finci, James G. Aivalis, Peter Wells, Robert Crispin Porter
  • Publication number: 20150075794
    Abstract: A nozzle assembly including a nozzle. The nozzle has an elongated body. The elongated body has a nozzle end at one end and a connection portion at another end. A joint section is connected with the connection portion. The joint section allows the nozzle to move axially and radially when an axial force is applied to the nozzle end.
    Type: Application
    Filed: September 17, 2013
    Publication date: March 19, 2015
    Applicant: Schlumberger Technology Corporation
    Inventor: Michael Jensen
  • Patent number: 8967241
    Abstract: A downhole tool for removing debris from fluid flowing through the downhole tool uses a screen member and wiper member, the wiper member having at least one window disposed through the inner and outer wall surfaces of the wiper member. Either the screen member or the wiper member is rotatable such that rotation of the screen member or the wiper member causes debris disposed on the outer wall surface of the screen member to fall-off the screen member. At least one direction port disposed at either the upper end of the screen member or the upper end of the wiper member causes rotation of the screen member or wiper member when fluid flows through the downhole tool.
    Type: Grant
    Filed: April 7, 2014
    Date of Patent: March 3, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: Ying Qing L. Xu, Yang Xu
  • Publication number: 20150047838
    Abstract: A technique that is usable with a well includes communicating a stabilized treatment slurry downhole into the well and dehydrating a portion of the slurry to form a barrier in the well.
    Type: Application
    Filed: August 15, 2013
    Publication date: February 19, 2015
    Applicant: Schlumberger Technology Corporation
    Inventors: Bruno Lecerf, Dmitry Potapenko, Elena Tarasova, Robert A. Parrott, Michael Bertoja
  • Patent number: 8955590
    Abstract: A device with an overshot including a first part with an elongated body adapted to be connected to a hoisting line in one end and with a tubular opening arranged/designed to receive a spearhead in the other end. The overshot further includes a second part with a scissor like mechanism including two lifting dogs arranged to pivot around a common pivot pin. The lifting dogs are connected via a biasing unit and the elongated body includes a central, axially extending slot. The scissor like mechanism is arranged with the common pivot pin sliding in the slot between a first end position where the biasing unit is arranged to close the lifting dogs such that a spearhead received in the tubular opening is locked and a second end position where an opener including an opening pin is arranged to force the lifting dogs open against the force of the biasing unit, such that a spearhead received in the tubular opening is released.
    Type: Grant
    Filed: June 10, 2010
    Date of Patent: February 17, 2015
    Assignee: Atlas Copco Canada Inc.
    Inventor: Patrick Salvador
  • Publication number: 20150041124
    Abstract: A downhole apparatus including a tool body and a sealing element disposed within the tool body. Also, at least one sensor disposed on the tool body, wherein the sensor is configured to take measurements from a well and wherein the sensor measures an actuation condition, the sensor signals the sealing element to actuate. Also, a method of sealing a portion of a well including disposing an automatic packer in a well, wherein the automatic packer includes a tool body, a sealing element disposed within the tool body, and a sensor disposed on the tool body. The method also includes measuring a condition within the well, determining an actuation condition with the sensor, and expanding the sealing element into contact with an inner diameter of the well when the actuation condition is determined.
    Type: Application
    Filed: August 6, 2013
    Publication date: February 12, 2015
    Applicant: A&O TECHNOLOGIES LLC
    Inventor: Alejandro Rodriguez
  • Publication number: 20150041137
    Abstract: An automatic drilling apparatus having a tool body, a motive device connected to the tool body, and a drill bit connected to the tool body. The apparatus also includes a setting tool connected to the body, at least one sensor disposed on the tool body, and a computer disposed in the tool body, wherein the computer is configured to actuate the motive device, the drill bit, the setting tool, and the at least one sensor.
    Type: Application
    Filed: December 20, 2013
    Publication date: February 12, 2015
    Inventor: Alejandro Rodriguez
  • Publication number: 20150034321
    Abstract: A downhole retrieval tool for engaging and retrieving an object from a wellbore includes a mandrel and a grapple having a contracted position and an expanded position. In the expanded position, the grapple engages the object for retrieval. The grapple is operably associated with an expansion member disposed on the mandrel to facilitate movement of the grapple between the contracted and expanded positions. The expansion member is releasably connected to the mandrel. In the event that the downhole tool and object, once secured to each other, are unable to be retrieved from the wellbore, the expansion member can be released from the mandrel which, in turn, causes the grapple to release from the object so that the downhole tool can be removed from the wellbore. A stored energy member facilitates movement of the grapple from the contracted position to the expanded position.
    Type: Application
    Filed: August 1, 2013
    Publication date: February 5, 2015
    Applicant: Baker Hughes Incorporated
    Inventors: Reena Thomas, Steven G. Blair
  • Publication number: 20140360725
    Abstract: A downhole tool for removing debris from fluid flowing through the downhole tool comprises a screen member in sliding engagement with an inner wall surface of the tool. As the screen member becomes blocked, it moves from a first or initial position to a second or actuated position which causes a pressure change detectable at the surface of the wellbore. The pressure change causes the debris blocking fluid flow through the screen member to fall off the screen member thereby allowing an increase in fluid flow through the screen member. As a result, the screen member returns to its initial position and fluid again flows through the screen member for capturing by the screen member.
    Type: Application
    Filed: June 7, 2013
    Publication date: December 11, 2014
    Inventor: Ying Qing Xu
  • Publication number: 20140360724
    Abstract: A bottom hole assembly for engaging and removing an object within a wellbore comprises a cutting tool at a lower end. Continued engagement of the cutting tool with the object is facilitated by an axial compression device disposed within the bottom hole assembly below the anchor of the bottom hole assembly. The axial compression device comprises a compressed position and an expanded or extended position. As the object is being cut or abraded, the axial compression device moves from the compressed position toward the expanded position so that a continued downward force is transferred to the object by the bottom hole assembly.
    Type: Application
    Filed: June 5, 2013
    Publication date: December 11, 2014
    Inventors: Mary L. Laird, Robbie B. Colbert, David W. Coleman
  • Patent number: 8851175
    Abstract: A method and equipment for an instrumented tubular joint apparatus for use in a pipe string comprising an upper tubular section with a threaded connection thereabove and an axial passage for fluid to flow through connected to a lower tubular section with a threaded connection therebelow and an axial passage for fluid to flow through, a sensor to measure strain at the instrumented tubular joint, a data recording and transmitting unit operatively connected to the sensor, means to relate the data acquired by the sensor to a surface processing unit; and a mechanism to disconnect the upper section from the lower section after receiving a signal from the surface processing unit. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
    Type: Grant
    Filed: October 20, 2009
    Date of Patent: October 7, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Olugbenga Adebola Onadeko, Luis Ochoa
  • Patent number: 8844618
    Abstract: A hang-off tool for supporting a tool inside a tubular member includes a logging string configured to generate logging data, a computing system coupled to the logging string and configured to communicate the logging data to another tool, and a radially expandable member having a retracted position and an expanded position. The radially expandable member is configured to engage a radially-increased profile of an inner surface of the tubular member in the expanded position to support the hang-off tool. The radially expandable member is also configured not to engage the radially-increased profile in the retracted position.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: September 30, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Jonathan Macrae, Bulent Finci, James G. Aivalis, Peter Wells, Robert Crispin Porter
  • Patent number: 8844630
    Abstract: A retrieval tool and method for retrieving a remote tool with a threaded connection from a remote location. The retrieval tool includes a rotational drive member which rotates an attachment sub having a complimentary threaded portion. An articulated shaft assembly permits the attachment sub to move laterally and angularly with respect to the axis of the rotational drive member. A fluid conduit supplies fluid pressure for releasing the remote tool.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: September 30, 2014
    Assignee: Baker Hughes Incorporated
    Inventor: Malcolm D. Smith
  • Publication number: 20140284055
    Abstract: A vibratory tool for use in a tubular string to prevent sticking or to release a stuck string features a fluid operated dart valve working in conjunction with an impact sleeve to deliver continuous axial jarring blows in opposed directions as long as flow is maintained. Movement of one of those components axially in opposed directions opens and closes access to opposed lateral ports so that a lateral vibration is also established as flow cyclically occurs and stops sequentially at opposed lateral outlets.
    Type: Application
    Filed: June 5, 2014
    Publication date: September 25, 2014
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Yingqing Xu, Steve Rosenblatt
  • Publication number: 20140262277
    Abstract: A downhole tool for use in a wellbore having a tool body with a blade assembly slidably mounted thereon and movable between a retracted and an outwardly extended position. The blade assembly is biased towards the retracted position and movable with an actuating force to the extended position. The tool includes an indexer constructed and arranged to facilitate movement of the blade assembly.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: Weatherford/Lamb, Inc.
    Inventor: Arthur Warren MEEKS
  • Patent number: 8813844
    Abstract: A drilling system for drilling a lateral borehole from a main borehole comprises a tubular conduit through which a fluid can be pumped, and a drilling assembly connected to the tubular conduit so as to receive fluid pumped therethrough. The drilling assembly comprises a power conversion unit, through which the fluid flows and which operates to provide a downhole power output; a drilling unit including a drilling apparatus powered by the output of the power conversion unit and operable to drill a lateral borehole into the formation surrounding the main borehole, and a liner unit for storing one or more liners for installation into the lateral borehole; and an anchor unit operable to anchor the drilling assembly in the main borehole when the drilling unit operates to drill the lateral borehole.
    Type: Grant
    Filed: November 27, 2008
    Date of Patent: August 26, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Christopher Hopkins, Niina Nobuyoshi, Stephen Bonner
  • Patent number: 8807228
    Abstract: A mechanism to enhance disengagement of release assembly portions from one another when disposed in a well. The mechanism may be disposed at an internal rod of the release assembly and configured to prevent frictional resistance to shifting of the rod.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: August 19, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Brandon Martin, Douglas W. Grant, Keith R. Nelson
  • Patent number: 8789598
    Abstract: Disclosed are embodiments of an adjustable jar and accelerator system and methods of use thereof. One exemplary jarring system includes a jar having a first processor configured to determine a release point of the jar, an accelerator operatively coupled to the jar and having a second processor communicably coupled to the first processor via a communication line, the second processor being configured to determine a spring rate and stroke of the accelerator, and an impact recording device operatively coupled to the jar and having a third processor communicably coupled to one or both of the first and second processors.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: July 29, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Matthew Craig Mlcak, Jack Gammill Clemens
  • Publication number: 20140202699
    Abstract: A method for removing fines and debris from a downhole wellbore in a formation, including introducing a tubing string having a downhole debris removal tool disposed substantially near the lower end of the tubing string into the downhole wellbore; positioning the downhole debris removal tool substantially proximal to the fines and debris; circulating fluid through the downhole debris removal tool for disintegrating the fines and debris; and collecting the fines and debris in the downhole debris removal tool for removal out of the downhole wellbore.
    Type: Application
    Filed: March 25, 2014
    Publication date: July 24, 2014
    Applicant: THRU TUBING SOLUTIONS, INC.
    Inventor: Stanley W. Loving
  • Patent number: 8783354
    Abstract: Apparatus and method for adjusting spring preloading in a downhole tool. In an apparatus, a mechanism includes a nut and a piston. The nut is configured to axially compress a spring in the downhole tool. The piston is coupled to the nut. Extension of the piston causes the nut to rotate and compress the spring. The nut is configured to maintain compression of the spring after the piston retracts.
    Type: Grant
    Filed: November 14, 2011
    Date of Patent: July 22, 2014
    Assignee: National Oilwell Varco, L.P.
    Inventors: Mark Sheehan, Jonathan Prill, Jeffery Clausen
  • Patent number: 8783353
    Abstract: A downhole jarring tool includes a mandrel having a small diameter portion and a large diameter portion, a detent cylinder sealingly disposed around the mandrel forming an enclosure, a divider disposed in the enclosure between the mandrel and the detent cylinder, wherein the divider partitions the enclosure into a storage chamber and a metering chamber, and a metering system disposed around the mandrel. A method of applying an impact force using a downhole jarring tool includes moving a mandrel with respect to a detent cylinder by applying an axial force, positioning the mandrel such that a metering system disposed on the mandrel enters a reduced diameter portion of the detent cylinder, transmitting energy to an energy storing component disposed inside the detent cylinder, metering a fluid through the metering system, and accelerating the mandrel with respect to the detent cylinder.
    Type: Grant
    Filed: March 1, 2011
    Date of Patent: July 22, 2014
    Assignee: Smith International, Inc.
    Inventors: Vishal Saheta, Arley G. Lee
  • Patent number: 8746340
    Abstract: A down hole apparatus for filtering debris from a fluid in a well bore including a screen sub, a diverter assembly connected to the screen sub, a screen section extending from the diverter assembly and connected to the screen sub. The screen section includes a plurality of openings for filtering debris from the fluid. The debris collects in an annulus between the screen section and the screen sub. The diverter assembly includes a detachable plug having a fishing portion capable of engaging a fishing tool. Removal of the detachable plug with a fishing tool opens a central passage through the diverter assembly and the screen section. The diverter assembly may include an outer and an inner body and one or more passages between the outer and inner bodies. The detachable plug may include one or more dog members capable of engaging the inner body.
    Type: Grant
    Filed: January 6, 2011
    Date of Patent: June 10, 2014
    Inventors: Benny Donald Mashburn, Douglas A. Beynon
  • Patent number: 8727019
    Abstract: A method of releasing a safety joint in a subterranean well can include disconnecting a tubular string at the safety joint without rotation of the tubular string. A safety joint for use in a subterranean well can include sections which are separated from each other in response to a predetermined number of relative longitudinal and non-rotational displacements between the safety joint sections. Another method of releasing a safety joint in a subterranean well can include fully actuating a jar multiple times, the jar being interconnected in a same tubular string with the safety joint, and then disconnecting the tubular string at the safety joint in response to non-rotational displacement of the tubular string.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: May 20, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Paul D. Ringgenberg
  • Publication number: 20140069649
    Abstract: A grapple for use in an overshot has a tension ring with a reduced helix diameter but the helix diameter is not reduced on either sides of the control finger slot. One embodiment includes expansion blades on the inner diameter (“ID”) of the tension ring to allow the grapple to expand substantially before the fish reaches the segments. An embodiment provides for a control with an offset finger to allow the guide thread ID to be smaller than the bowl helix major ID. Also provided is grapple control for a spiral grapple that has at least one gap to allow the grapple control to be more compliant during fishing operations. The control may include one or more bridges of reduced thickness. Alternate embodiments include gaps and support bands with or without bridges and/or a backup ring to help eliminate misalignment of the grapple control with the support shoulder of the overshot guide.
    Type: Application
    Filed: November 7, 2013
    Publication date: March 13, 2014
    Applicant: NATIONAL OILWELL VARCO, L.P
    Inventors: James R. STREATER, JR., DANIEL HERNANDEZ, FILIBERTO GARCIA
  • Patent number: 8657007
    Abstract: A hydraulic jar for delivering impacts downhole. The jarring mechanism includes a cup-type piston that moves through a seal bore. The cup is deformable in response to fluid pressure so that it expands each time it moves through the seal bore to compensate for wear on the lip. Since only minimum interference is required between the piston and seal bore, less material may be used. This reduces the force required to reset the tool, which is particularly advantageous in horizontal wells. The seal bore may be slightly wider at the exit; the cup expands to this exit diameter, ensuring an interference fit as the cup travels back through the smaller diameter entry section. The entry end of the seal bore may include longitudinal grooves. This prevents the piston cup from rupturing by preventing a fluid seal around the lip until the most of cup is inside the seal bore.
    Type: Grant
    Filed: August 14, 2012
    Date of Patent: February 25, 2014
    Assignee: Thru Tubing Solutions, Inc.
    Inventors: Brock W. Watson, Roger L. Schultz
  • Publication number: 20130341027
    Abstract: A downhole tool for removing debris from a wellbore comprises a screen member, an incoming fluid accelerator, and a cavity for capturing debris. The incoming fluid accelerator is disposed above the screen and accelerates the flow of an incoming fluid through the accelerator and into a screen bore. The incoming fluid then exits the bottom of the tool, mixes with wellbore fluid containing debris to form a combination fluid that is transported upward within the wellbore annulus. A pressure differential between the incoming fluid flowing within the screen bore and the wellbore annulus pulls the combination fluid containing the debris into the cavity where the debris is captured. Fluid and/or debris not blocked by the screen flows through the screen into the screen bore to be circulated downward and out of the tool where it can pick up additional debris for capture.
    Type: Application
    Filed: June 21, 2012
    Publication date: December 26, 2013
    Inventors: YING QING XU, Gregory L. Hern, Yang Xu
  • Patent number: 8590613
    Abstract: An overshot has an articulated seal that can be set against the fish when the fish is engaged by the tool. The seal can be actuated from swelling due to exposure to well fluid or mechanically or hydraulically from the string that supports it. The use of spears or overshots with the articulated seal feature is contemplated. If a swelling design is used it can respond to water or hydrocarbons that are found at the subterranean location.
    Type: Grant
    Filed: January 5, 2011
    Date of Patent: November 26, 2013
    Assignee: Baker Hughes Incorporated
    Inventors: Justin C. Bowersock, John M. Lee, Kent A. Evans
  • Patent number: 8561688
    Abstract: This invention relates to a jar used to dislodge tools stuck in a well. The jar includes two housing portions movable with respect to each other. A release collet forms a portion of one of the housings. A release sleeve is carried by a mandrel and is located within the release collet. After a given amount of movement of the housing with respect to the mandrel, the release mechanism is activated and the two housing sections rapidly move with respect to each other. A hammer portion of the mandrel then strikes an anvil in the anvil housing, thus applying an upward force to the tool lodged in the well.
    Type: Grant
    Filed: August 6, 2012
    Date of Patent: October 22, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Robert W. Evans
  • Publication number: 20130220617
    Abstract: A retrieval tool and method for retrieving a remote tool with a threaded connection from a remote location. The retrieval tool includes a rotational drive member which rotates an attachment sub having a complimentary threaded portion. An articulated shaft assembly permits the attachment sub to move laterally and angularly with respect to the axis of the rotational drive member. A fluid conduit supplies fluid pressure for releasing the remote tool.
    Type: Application
    Filed: February 28, 2012
    Publication date: August 29, 2013
    Applicant: Baker Hughes Incorporated
    Inventor: Malcolm D. Smith
  • Patent number: 8509375
    Abstract: Disclosed is a method for removing a thermal sleeve from a cold leg of a reactor coolant system, which enables removal of an unintentionally separated thermal sleeve without implementation of a pipe cutting operation, preventing invasion of impurities into pipes and securing reliability in repetitious welding of the pipes. In particular, the method enables a remote operation and an underwater operation using wire ropes, thus being capable of minimizing a negative effect on workers due to radiation exposure.
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: August 13, 2013
    Assignee: KPS Co., Ltd.
    Inventors: Won Jong Baek, Sung Ho Jang, Bum Suk Lee
  • Patent number: 8499836
    Abstract: A method of using jarring tool in a wellbore, where the jarring tool is electrically activated to apply an impact force transmitted to at least another tool in the well. The method may further comprise operating a hydraulic mechanism in response to electrical activation of the jarring tool to cause a first member of the jarring tool to be moved to collide with a second member of the jarring tool to apply the impact force. Also, the method may involve electrically activating the jarring tool by communicating at least one command over at least one electrical conductor to the jarring tool.
    Type: Grant
    Filed: October 11, 2007
    Date of Patent: August 6, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: Keith A. Moriarty, Reinhart Ciglenec
  • Patent number: 8496058
    Abstract: A well fishing method and system is described. In at least one example of the invention, a method of retrieval of material (e.g., a tubing string) having broken control or monitoring lines from a cased well is provided. The method comprises: isolating, from the well casing, broken lines above the material to be retrieved, thereby creating a substantially axial work passage; grasping the material to be removed through the substantially axial work passage; and pulling the material to be retrieved and the restrained lines from the well. Example shrouds, probes and other members are also described.
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: July 30, 2013
    Assignee: Hydrus Corporation, Inc.
    Inventor: Albert P. Davis
  • Publication number: 20130168092
    Abstract: A downhole assembly, including a downhole tool, a downhole force-creating device, and a shock damper. The shock damper includes a hollow housing including an annular shoulder near each end and extending radially inward from the housing. The damper also includes a mandrel located at least partially inside the housing to form an annulus between the mandrel and the housing, the mandrel including an annular shoulder near each end and extending radially outward from the mandrel. A spring is located in an annular cavity formed by the annulus and between both the housing shoulders and the mandrel shoulders. The mandrel is movable relative to the housing to an expanded position in one direction and to a compressed position in the other direction.
    Type: Application
    Filed: January 4, 2012
    Publication date: July 4, 2013
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventor: Robert W. EVANS
  • Publication number: 20130168091
    Abstract: A downhole tool for removing debris from fluid flowing through the downhole tool comprises a screen member and wiper member, the wiper member having at least one window disposed through the inner and outer wall surfaces of the wiper member. Either the screen member or the wiper member is rotatable such that rotation of the screen member or the wiper member causes debris disposed on the outer wall surface of the screen member to fall-off the screen member. At least one directional port disposed at either the upper end of the screen member or the upper end of the wiper member causes rotation of the screen member or wiper member when fluid flows through the downhole tool.
    Type: Application
    Filed: January 3, 2012
    Publication date: July 4, 2013
    Inventors: Ying Qing Xu, Yang Xu
  • Publication number: 20130153227
    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: Application
    Filed: August 16, 2012
    Publication date: June 20, 2013
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Mary L. Laird, Robbie B. Colbert, David W. Coleman
  • Patent number: 8453727
    Abstract: A jarring device includes an outer housing which defines an axial flow path therethrough. An impact rotator is retained within the housing and is rotatable therewithin between a first rotational position and a second rotational position to create a jarring impact. A torsional spring biases the impact rotator toward the first rotational position. Fluid flow through the housing rotates the impact rotator from the first to the second rotational position.
    Type: Grant
    Filed: May 12, 2011
    Date of Patent: June 4, 2013
    Assignee: Baker Hughes Incorporated
    Inventor: Richard Yingqing Xu
  • Patent number: 8453724
    Abstract: A downhole tool incorporates a junk catcher with full body casing drift. It is made of an inner tubular member that conveys the hydraulic power or circulating fluid to rearward and outward facing jet nozzles for directly flushing downhole junks in front of the tool (if encountered) into a junk collecting barrel equipped with individual magnets to retain magnetically attractive metal junks. The barrel is made of high grade steel material with outer diameter matching the full drift of wellbore casing. The front, or the lower end of the outer body is addressed with tungsten carbide cutters to effectively handle metal junks in case of milling action is required. The back, or upper end of the barrel has return flow ports equipped with a filter screen to retain small, medium and large size junks while fluid is pumped through the tool.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: June 4, 2013
    Assignee: Saudi Arabian Oil Company
    Inventor: Shaohua Zhou