With Junk Retrieving Means Patents (Class 166/99)
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Patent number: 8672025Abstract: A downhole debris recovery tool including a ported sub coupled to a debris sub, a suction tube disposed in the debris sub, and an annular jet pump sub disposed in the ported sub and fluidly connected to the suction tube is disclosed. A method of removing debris from a wellbore including the steps of lowering a downhole debris removal tool into the wellbore, the downhole debris removal tool having an annular jet pump sub, a mixing tube, a diffuser, and a suction tube, flowing a fluid through a bore of the annular jet pump sub, jetting the fluid from the annular jet pump sub into the mixing tube, displacing an initially static fluid in the mixing tube through the diffuser, thereby creating a vacuum effect in the suction tube to draw a debris-laden fluid into the downhole debris removal tool, and removing the tool downhole debris removal tool from the wellbore after a predetermined time interval is also disclosed.Type: GrantFiled: March 27, 2009Date of Patent: March 18, 2014Assignees: M-I L.L.C., M-I Drilling Fluids U.K. LimitedInventors: John C. Wolf, George Telfer, James Atkins
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Publication number: 20130341027Abstract: 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: ApplicationFiled: June 21, 2012Publication date: December 26, 2013Inventors: YING QING XU, Gregory L. Hern, Yang Xu
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Publication number: 20130341017Abstract: A downhole tool for removing debris from a wellbore comprises a body having a bore, a collection member, and a means for creating a hydraulic barrier within a wellbore annulus. The hydraulic barrier within the wellbore annulus restricts upward movement of a debris laden fluid within the wellbore annulus causing the debris laden fluid to be directed toward the collection member. Thus, the hydraulic barrier facilitates removal of debris from the wellbore.Type: ApplicationFiled: June 21, 2012Publication date: December 26, 2013Inventors: YANG XU, Ying Qing Xu, Gregory L. Hern
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Patent number: 8607857Abstract: A debris removal tool has a lower end pickup hose into which debris laden fluid is pulled when there is circulation through the debris removal tool from the surface. An anchor near the open end of the hose stabilizes the lower end near a recess or groove from which debris is to be removed. Once the anchor is set the hose can be extended or retracted as well as rotated on its axis to pick up debris. A camera can be located in or near the hose opening to be able to see where the debris is located and for confirmation that the debris is being removed and that the debris has fully been removed.Type: GrantFiled: December 17, 2010Date of Patent: December 17, 2013Assignee: Baker Hughes IncorporatedInventors: Gerald D. Lynde, Steve Rosenblatt
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Patent number: 8584744Abstract: A subterranean debris catcher swirls the incoming debris laden stream by putting grooves or spiral projections on the inside of the inlet pipe. The solids come out of openings in the side of the inlet pipe or the solids can exit near the top either directly into the enclosed solids holding volume as the liquid exits straight out or the solids can be discharged out the end of the inlet pipe into the bigger open space defined by the housing. In the latter case the inside housing wall can have a screen or vanes that slow down the solid particles as the fluid continues to a housing exit and eventually to an exit screen before being discharged to either go to the surface or recirculate back along the outside of the tool to the inlet pipe while picking up additional debris.Type: GrantFiled: September 13, 2010Date of Patent: November 19, 2013Assignee: Baker Hughes IncorporatedInventors: Mohan L. Soni, Gerald D. Lynde, Ronnie D. Russell, Jeremy J. Guillory, Steve Rosenblatt
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Publication number: 20130299175Abstract: A vacuum sub (8) for use in a well bore (12), the vacuum sub (8) having a cylindrical casing (28) with an upstream end (14) and a downstream end (16). The upstream and downstream ends (14, 16) are designed to attach to components of a downhole assembly (6) in a well bore (12). The vacuum sub (8) includes a port (18) in the cylindrical casing (28) that provides access between the inside (20) of the cylindrical casing (28) to the outside (22) of the cylindrical casing (28). The port (18) is angled so that when air passes through the port (18) from the inside (20) of the casing (28) to the outside (22) of the casing (28), the air is directed upwardly through the well bore (12) in an upstream direction, thereby creating a vacuum in the well bore (12) below the port (18).Type: ApplicationFiled: September 12, 2012Publication date: November 14, 2013Applicant: ATD LLC dba Air Tech DrillingInventor: Steven D. Matthews
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Publication number: 20130220617Abstract: 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: ApplicationFiled: February 28, 2012Publication date: August 29, 2013Applicant: Baker Hughes IncorporatedInventor: Malcolm D. Smith
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Patent number: 8479821Abstract: A carrier assembly having at least one sealing cup, a fluid bypass and adjustable wash nozzles, as well as a spear assembly having a central through bore, are attached to the distal end of a length of continuous tubing and inserted in to the flow bore of a pipeline. Fluid is pumped through the annular space between the carrier assembly and the pipeline, providing motive force for advancing the carrier assembly within the pipeline. Fluid can bypass the carrier assembly, enter the central bore of the spear assembly, and return to the surface through the central bore of the continuous tubing. A stuck pig or other obstruction is speared, and thereafter retrieved from the pipeline on the continuous tubing.Type: GrantFiled: August 19, 2010Date of Patent: July 9, 2013Inventors: James (Jim Bob) R. Crawford, Jamie B. Crawford, Joseph W. Elsbury, III
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Publication number: 20130168091Abstract: 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: ApplicationFiled: January 3, 2012Publication date: July 4, 2013Inventors: Ying Qing Xu, Yang Xu
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Publication number: 20130168078Abstract: A release assembly (200) for releasing a portion of a tool string in a wellbore. The release assembly (200) includes an outer housing (202) having a fishing receptacle (206) disposed therein. The fishing receptacle (206) includes a fishing neck (208). A support assembly (214) is disposed within the housing (202). The support assembly (214) has a first position wherein the support assembly (214) engages the fishing neck (208) to prevent separation of the fishing receptacle (206) from the housing (202) and a second position wherein the support assembly (214) is disengaged from the fishing neck (208) no longer preventing separation of the fishing receptacle (206) from the housing (202). An actuator (224), disposed within the housing (202), maintains the support assembly (214) in the first position until actuation thereof allows the support assembly (214) to shift to the second position.Type: ApplicationFiled: October 5, 2012Publication date: July 4, 2013Applicant: Halliburton Energy Services, Inc.Inventor: Halliburton Energy Services, Inc.
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Patent number: 8474522Abstract: A debris removal device features structural support from an exterior housing that allows more space for debris collection. The debris enters the collection volume from the top to eliminate debris from having to go through a valve. The screen in the device is disposed internally to protect it during handling and running. A variety of external flow diverters are used to direct debris laden fluid into the tool and to keep debris out of an annular space around the tool that could interfere with its removal. The diverters can be actuated by relative movement in the tool or applied pressure to a piston which can inflate a sleeve or orient or misalign paths through brushes for selective bypassing of fluid exterior to the tool.Type: GrantFiled: May 15, 2008Date of Patent: July 2, 2013Assignee: Baker Hughes IncorporatedInventors: Gerald D. Lynde, John P. Davis
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Publication number: 20130153245Abstract: Disclosed is an apparatus for cleaning the inner wall of wellbores and for capturing downhole wellbore debris. An elongated, tubular central mandrel is provided with recesses on its outer surface. Various service elements are interchangeably mounted over the split rings. The various service elements include stabilizers, brush assemblies, junk baskets and magnets.Type: ApplicationFiled: June 18, 2012Publication date: June 20, 2013Applicant: WELLBORE ENERGY SOLUTIONS LLCInventors: Benton Knobloch, Todd Roy
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Publication number: 20130140029Abstract: A work string assembly for an oil or gas well has a first and second tubulars, and a torque limiting device connected in the work string. The torque limiting device has a body with an axial bore and two interconnected members that can disconnect to be relatively rotatable. The interconnected members can be repeatedly re-engageable when the torque levels drop below a torque threshold value, or can be connected by a frangible member that is broken when the interconnected members disconnect. A selectively actuable circulation port provided in the string adjacent to and above the torque limiting device allows the annulus between the work string and the casing to be flushed with fluid from the port.Type: ApplicationFiled: November 27, 2012Publication date: June 6, 2013Inventors: Michael Keith Sullivan, Shane Paul Hart, Mark Christopher Glaser, Ruairidh Cooper
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Patent number: 8453724Abstract: 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: GrantFiled: November 12, 2010Date of Patent: June 4, 2013Assignee: Saudi Arabian Oil CompanyInventor: Shaohua Zhou
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Patent number: 8397815Abstract: A method and apparatus for fishing a wellbore with wired drill pipe are provided. Embodiments of the invention advantageously identify objects for removal and signal proper attachment therewith. In an embodiment, a method of fishing with wired drill pipe comprising attaching a fishing apparatus to the end of a wired drill pipe string, extending the wired drill pipe string into a wellbore, monitoring signals received through the wired drill pipe string from one or more sensors coupled to the fishing apparatus, and determining proper coupling of the fishing apparatus with one or more objects intended for removal based on the signals received from the sensors is provided.Type: GrantFiled: August 30, 2010Date of Patent: March 19, 2013Assignee: Schlumberger Technology CorporationInventors: Tom MacDougall, Gbenga Onadeko
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Patent number: 8387700Abstract: A cleanout assembly for removal of debris from a debris chamber in a wellbore cleaning tool. The cleanout assembly includes a mandrel, a boot radially surrounding the mandrel and a debris chamber defined radially between the mandrel and the boot. The boot has one or more windows therein to permit debris to be cleaned out of the debris chamber.Type: GrantFiled: May 28, 2010Date of Patent: March 5, 2013Assignee: Baker Hughes IncorporatedInventor: Gregory L. Hern
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Patent number: 8365826Abstract: A hydraulically powered fishing tool is provided for retrieving another tool or tubular stuck in a well. A tool housing is supported in a well on a work string, and the housing encloses a plurality of pistons (16, 28, 34) each movable in response to pressurized fluid transmitted through the work string. An anchor (52) axially fixes the position of the tool in the well, and a tool mandrel (40) is axially movable relative to tool housing when the anchor is set. A fishing device (82) engages the another tool or tubular, so that axial movement of the mandrel in response to the plurality of pistons dislodges the stuck tool or tubular.Type: GrantFiled: August 6, 2009Date of Patent: February 5, 2013Assignee: TIW CorporationInventor: Britt O. Braddick
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Publication number: 20130025865Abstract: Disclosed is a downhole knock-out tool (900) for use in a tubing string (702) with a power head (704) for creating reverse flow. The tool has a cylindrical housing (910) with an inner tube (920) in the housing directing well fluids against a knock-out (940) or deflector cone to accumulate debris in the annulus (926) formed between the housing and tube.Type: ApplicationFiled: January 20, 2011Publication date: January 31, 2013Inventors: Benton T. Knobloch, JR., David J. Tilley, Todd J. Roy
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Patent number: 8336617Abstract: Apparatus for downhole filtration of fluids in a wellbore. The apparatus has a diverter and a filter slidably mounted on a mandrel. The diverter has a circumferential wiper element between the mandrel and the casing within which the apparatus is run. When fluids are reverse circulated, or the tool is being pulled out, the diverter shifts to a downward position, wherein it seals against an upper end of the filter, filtering out solids in the fluids and retaining them in a chamber between the sleeve and mandrel. When running the tool into a wellbore, the diverter shifts to an upper position to permit fluids to bypass the filter sleeve. The filter sleeve bears against a spring loaded seat, which permits creating a gap between the diverter and an upper end of the filter sleeve to allow fluids to bypass the filter sleeve should the filter sleeve slots become plugged.Type: GrantFiled: January 13, 2012Date of Patent: December 25, 2012Assignee: Halliburton Energy Services, Inc.Inventors: Benton Knobloch, Todd Roy, David J. Tilley
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Publication number: 20120298369Abstract: Disclosed is a power head for connection in a tubing string suspended in a subterranean location in a wellbore for use in methods removing debris from the wellbore. When the power head is in the closed position, well fluids pumped down the tubing string will flow through the power head. When the power head is moved to the open position by dropping a actuator ball onto a seat in the power head, the power head creates flow down along the annulus to circulate debris laden well fluids into a catch apparatus such as a catch basket or screen. In the open position, nozzles and the eductor create the reverse flow.Type: ApplicationFiled: January 20, 2011Publication date: November 29, 2012Inventors: Benton T. Knobloch, JR., David J. Tilley, Todd J. Roy
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Publication number: 20120261114Abstract: A downhole magnet tool is disclosed comprising a top sub having an inner bore terminating in a downhole facing open end, the inner bore defining a centralizer receptacle of smaller width than a width of the downhole facing open end, a mandrel terminating upwardly in a centralizer stem, the centralizer stem being fitted in the centralizer receptacle of the top sub, and a magnet mounted on a downhole facing surface of the mandrel. A method of assembly of a downhole magnet tool is also disclosed.Type: ApplicationFiled: April 14, 2011Publication date: October 18, 2012Applicant: LEE OILFIELD SERVICE LTD.Inventors: Michael Shoyhetman, David Budney, Craig Budney, Glenn Budney
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Patent number: 8261830Abstract: A fishing tool includes a grapple and an exciter in vibration transmissive communication with the grapple and method.Type: GrantFiled: September 1, 2010Date of Patent: September 11, 2012Assignee: Baker Hughes IncorporatedInventor: Richard YingQing Xu
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Patent number: 8240373Abstract: An apparatus and method for retrieving debris from the well bore of an oil or gas well. The apparatus comprises a junk basket with a flow passage that allows fluid to be jetted out end of the tool while the tubing string is advanced to stir up the debris in the well fluids and facilitate capture of the debris in the strainer basket. Importantly, upon encountering a plug of sand or other debris in the well bore, fluid flow through the tool can be increased to work on the plug until it breaks apart. Advancement of the tubing string can be halted and resumed, as needed, in combination with control of the fluid flow through the tool until the junk basket is full or the targeted debris is collected, whereupon the junk basket is withdrawn. The junk basket may be deployed on coiled tubing or a string of drill pipe.Type: GrantFiled: December 27, 2011Date of Patent: August 14, 2012Assignee: Thru Tubing Solutions, Inc.Inventors: Mark S. Britton, Raymond C. Hamilton
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Patent number: 8225859Abstract: A debris cleanup tool uses a movable eductor to reconfigure the flow scheme through the tool. During the debris pickup mode, pressurized fluid is delivered to through the tubing to the eductor inlet. The outlet of the eductor is into the surrounding annulus where the flow splits with most going to the surface and the rest down and into a mill making cuttings. The flow into the mill takes the cuttings to a collection volume and then screens the internal flow stream before directing it into the eductor inlet. The eductor body can be repositioned to close the eductor outlet to the annulus and open the outlet into the housing to allow reverse flow. In one embodiment a ball is dropped and pressure is built to break a shear pin to shift the eductor body and to open a bypass around the ball.Type: GrantFiled: March 4, 2011Date of Patent: July 24, 2012Assignee: Baker Hughes IncorporatedInventors: Joe P. Moidel, Lee Brousasard, Gerald P. Comeaux, Ronald E. Burger, Ronald A. Moore
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Patent number: 8220532Abstract: A magnet fixing device in a cleaning tool (1) for use in a borehole where the cleaning tool (1) is externally provided with at least one projection (8) and at least two recesses (6) and where at least one magnet (12) is disposed in the projection (8), as the magnetic field from the at least one magnet (12) is active in that it is arranged to at least attract a magnet sensitive material (20) into a recess (6) or hold the material (20) in the recess (6), and where the magnet (12) runs through the projection (8), whereby the one magnet (12) pole is active in a first recess (6) while the other magnet (12) pole is active in a second recess (6).Type: GrantFiled: June 25, 2008Date of Patent: July 17, 2012Assignee: M-I Swaco Norge ASInventor: Karluf Hagen
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Publication number: 20120168147Abstract: 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: ApplicationFiled: January 5, 2011Publication date: July 5, 2012Inventors: Justin C. Bowersock, John M. Lee, Kent A. Evans
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Publication number: 20120152522Abstract: A debris cleanup tool uses an eductor principle to induce flow into a lower end to bring debris into a housing where the debris will either settle out or be screened out and the remaining fluid drawn up into the eductor with motive force for the eductor coming from clean fluid pumped down a tubular string from the surface. The eductor performance is enhanced with a surrounding sleeve on the eductor outlet that directs eductor exhaust flow into an annular passage oriented in a downhole direction. The exterior of the sleeve has passages to allow some of the flow to go uphole while the sleeve wall has ports through it to allow flow in the annular passage to cut through to outside the sleeve for passage uphole or downhole.Type: ApplicationFiled: December 17, 2010Publication date: June 21, 2012Applicant: BAKER HUGHES INCORPORATEDInventor: Gerald D. Lynde
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Publication number: 20120118560Abstract: A fishing tool for cable-based retrieval of equipment from a borehole comprises a seat cone, an inner spring that tensions the seat cone, a locking cone that is arranged external to the locking cone and which is tensioned by an outer spring, and at least one latch that is pivotal to a position for gripping the equipment by movement of the seat cone and the locking cone with the aid of the respective springs.Type: ApplicationFiled: June 6, 2010Publication date: May 17, 2012Applicant: 2K TOOLS ASInventors: Kjell Mikalsen, Ketil Botn-Mark
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Publication number: 20120118571Abstract: 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: ApplicationFiled: November 12, 2010Publication date: May 17, 2012Inventor: Shaohua Zhou
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Patent number: 8162064Abstract: An autonomous junk collecting sleeve for a riser is provided. The sleeve is constructed and arranged to be independently lowered and seated above a subsea tree section and, subsequently, raised and removed independent of the work string. The autonomous junk collecting sleeve includes a first cylindrical structure, a second cylindrical structure concentric to the first cylindrical structure and which are joined together in spatial relation at a bottom end to form an interior J-channel basket. The J-channel basket is operable to collect debris traveling up through the bottom end and over of the second cylindrical structure for deposit therein.Type: GrantFiled: March 24, 2008Date of Patent: April 24, 2012Assignee: Wellbore Specialties, LLCInventor: Dennis J. Penisson
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Publication number: 20120061073Abstract: A subterranean debris catcher swirls the incoming debris laden stream by putting grooves or spiral projections on the inside of the inlet pipe. In some embodiments the solids come out of openings in the side of the inlet pipe and in others the solids can exit near the top either directly into the enclosed solids holding volume as the liquid exits straight out or the solids can be discharged out the end of the inlet pipe into the bigger open space defined by the housing. In the latter case the inside housing wall can have a screen or vanes that slow down the solid particles as the fluid continues to a housing exit and eventually to an exit screen before being discharged to either go to the surface or recirculate back along the outside of the tool to the inlet pipe while picking up additional debris.Type: ApplicationFiled: September 13, 2010Publication date: March 15, 2012Applicant: BAKER HUGHES INCORPORATEDInventors: Mohan L. Soni, Gerald D. Lynde, Ronnie D. Russell, Jeremy J. Guillory, Steve Rosenblatt
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Patent number: 8132625Abstract: An eductor sub is used as a portion of a downhole debris removal apparatus. It features an eductor outlet port that is selectively closed for run in to allow flow pumped through a tubing string to all go to the lower end of the debris removal tool to fluidize the debris and help prevent the tool from getting stuck on the way to the desired depth. When the desired depth is reached a ball lands on a seat that is connected to a sleeve that is displaced to move the sleeve away from the eductor outlet so that future flow coming down the casing string will create a reduced pressure within the tool to draw some of the exiting flow after the eductor exit in a downhole direction along an annular space to the debris removal tool entrance for debris removal.Type: GrantFiled: May 7, 2009Date of Patent: March 13, 2012Assignee: Baker Hughes IncorporatedInventor: Neil A. Anderson
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Publication number: 20120048553Abstract: A fishing tool includes a grapple and an exciter in vibration transmissive communication with the grapple and method.Type: ApplicationFiled: September 1, 2010Publication date: March 1, 2012Applicant: BAKER HUGHES INCORPORATEDInventor: Richard YingQing Xu
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Publication number: 20120048552Abstract: A method and apparatus for fishing a wellbore with wired drill pipe are provided. Embodiments of the invention advantageously identify objects for removal and signal proper attachment therewith. In an embodiment, a method of fishing with wired drill pipe comprising attaching a fishing apparatus to the end of a wired drill pipe string, extending the wired drill pipe string into a wellbore, monitoring signals received through the wired drill pipe string from one or more sensors coupled to the fishing apparatus, and determining proper coupling of the fishing apparatus with one or more objects intended for removal based on the signals received from the sensors is provided.Type: ApplicationFiled: August 30, 2010Publication date: March 1, 2012Inventors: Tom MacDougall, Gbenga Onadeko
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Publication number: 20120037369Abstract: 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: ApplicationFiled: August 11, 2011Publication date: February 16, 2012Inventors: JOE PHILLIP MOIDEL, Jimmy D. Ryan, Clyde F. Akers, James A. Sonnier, Eric P. Rogers
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Publication number: 20120024522Abstract: A basket catcher for catching debris such as broken metal bands from an oil borehole casing as production tubing is withdrawn. The basket catcher has a collar that includes a series of spring-tensioned blades directed upwardly catch debris as the basket is withdrawn through the casing, preventing the debris from occluding the borehole.Type: ApplicationFiled: March 7, 2011Publication date: February 2, 2012Inventors: Ronald E. Dobson, Gary J. Erickson
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Publication number: 20110284210Abstract: A magnetic retrieval tool used for collecting metallic debris and material from within a wellbore or other surrounding downhole tubular. The tool includes a tool mandrel with a removable insert which contains one or more magnets. The insert is formed such that both the north and south magnetic poles of the one or more magnets are able to attract metallic debris.Type: ApplicationFiled: May 18, 2010Publication date: November 24, 2011Applicant: Baker Hughes IncorporatedInventors: Gregory L. Hern, Thomas M. Ashy, Jace E. Melder, Larry T. Palmer, Paul L. Connell, Jonathan F. Nelson
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Publication number: 20110284211Abstract: A magnetic retrieval tool used for collecting metallic debris and material from within a wellbore or other surrounding downhole tubular. The tool includes a tool mandrel. A removable insert resides upon the tool mandrel. The insert retains a plurality of individual magnets in a fixed array or matrix surrounding the mandrel.Type: ApplicationFiled: May 18, 2010Publication date: November 24, 2011Applicant: Baker Hughes IncorporatedInventors: Gregory L. Hern, Larry T. Palmer, Jonathan F. Nelson
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Publication number: 20110214872Abstract: A carrier assembly having at least one sealing cup, a fluid bypass and adjustable wash nozzles, as well as a spear assembly having a central through bore, are attached to the distal end of a length of continuous tubing and inserted in to the flow bore of a pipeline. Fluid is pumped through the annular space between the carrier assembly and the pipeline, providing motive force for advancing the carrier assembly within the pipeline. Fluid can bypass the carrier assembly, enter the central bore of the spear assembly, and return to the surface through the central bore of the continuous tubing. A stuck pig or other obstruction is speared, and thereafter retrieved from the pipeline on the continuous tubing.Type: ApplicationFiled: August 19, 2010Publication date: September 8, 2011Inventors: James (Jim Bob) R. Crawford, Jamie B. Crawford, Joseph W. Elsbury, III
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Patent number: 7992636Abstract: A device for use in retrieving debris from a well, including an elongate body; a main bore extending part way along a length of the body; an opening towards a lower end of the body; a main fluid chamber in the body in fluid communication with the main bore; a flow restriction provided in the main bore, through which fluid flows from the main bore and into the main fluid chamber; at least one chamber outlet for directing fluid from the main fluid chamber into an annulus defined between the device and a well borehole wall; a return flow passage extending between the body opening and the main fluid chamber, for return flow of fluid from the annulus to the main fluid chamber, to facilitate retrieval of debris from the well; and at least one fluid exit, for flow of fluid out of the device.Type: GrantFiled: May 12, 2006Date of Patent: August 9, 2011Assignee: Specialised Petroleum Services Group LimitedInventor: George Telfer
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Publication number: 20110162887Abstract: Devices and methods for placing sensors underground are described. A preferred device has a first structure and a second structure that are placed into the ground. A third structure is connected to a portion of the first structure. The second structure is removed from the ground, leaving sensors or other equipment underground.Type: ApplicationFiled: July 17, 2008Publication date: July 7, 2011Applicant: Terralliance Technologies, Inc.Inventors: Erlend Olson, John B. Hampshire, II, Raymond Rigaud
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Patent number: 7905280Abstract: A self adjusting excluder sub includes a first subassembly; a second subassembly with respect to which the first subassembly is axially movable; and a support disposed at the second subassembly and when actuated being resiliently disposed against the first subassembly while being laterally movable relative to the first and second subassemblies jointly and method.Type: GrantFiled: February 12, 2008Date of Patent: March 15, 2011Assignee: Baker Hughes IncorporatedInventor: Aubrey C. Mills
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Patent number: 7900695Abstract: A well pump device is introduced into a well and connects to a wireline to receive electrical energy from the surface. An electrically driven feed pump connects to and delivers driving fluid to the driving side of an ejector. A hydraulic apparatus uses the well pump device as a pulling tool.Type: GrantFiled: October 18, 2005Date of Patent: March 8, 2011Inventor: Tom Unsgaard
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Publication number: 20110024119Abstract: A downhole debris recovery tool including a ported sub coupled to a debris sub, a suction tube disposed in the debris sub, and an annular jet pump sub disposed in the ported sub and fluidly connected to the suction tube is disclosed. A method of removing debris from a wellbore including the steps of lowering a downhole debris removal tool into the wellbore, the downhole debris removal tool having an annular jet pump sub, a mixing tube, a diffuser, and a suction tube, flowing a fluid through a bore of the annular jet pump sub, jetting the fluid from the annular jet pump sub into the mixing tube, displacing an initially static fluid in the mixing tube through the diffuser, thereby creating a vacuum effect in the suction tube to draw a debris-laden fluid into the downhole debris removal tool, and removing the tool downhole debris removal tool from the wellbore after a predetermined time interval is also disclosed.Type: ApplicationFiled: March 27, 2009Publication date: February 3, 2011Applicants: M-I L.L.C., M-I DRILLING FLUIDS U.K. LIMITEDInventors: John C. Wolf, George Telfer, James Atkins
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Publication number: 20110024118Abstract: 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: ApplicationFiled: December 22, 2009Publication date: February 3, 2011Applicant: Hydrus Corporation, Inc.Inventor: Albert P. Davis
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Patent number: 7861772Abstract: A mill is configured to have large debris passages disposed among a series of radially extending blades. The mill center is adapted to accept a retention nut that supports a tool that secures the downhole tool being milled out, such as a packer. Reverse flow takes cuttings into the large open area between the blades to pass up in an annular space around a support for the retention nut. The passage then opens up to a maximum dimension leaving only the tubular wall needed for structural strength to support the mill and conduct cuttings into a debris removal tool.Type: GrantFiled: May 15, 2009Date of Patent: January 4, 2011Assignee: Baker Hughes IncorporatedInventor: Steven G. Blair
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Publication number: 20100288485Abstract: A mill is configured to have large debris passages disposed among a series of radially extending blades. The mill center is adapted to accept a retention nut that supports a tool that secures the downhole tool being milled out, such as a packer. Reverse flow takes cuttings into the large open area between the blades to pass up in an annular space around a support for the retention nut. The passage then opens up to a maximum dimension leaving only the tubular wall needed for structural strength to support the mill and conduct cuttings into a debris removal tool.Type: ApplicationFiled: May 15, 2009Publication date: November 18, 2010Inventor: Steven G. Blair
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Patent number: 7828062Abstract: An extension sub for a downhole fishing tool, the extension sub comprising a tubular having a threaded pin end and a threaded box end, the tubular having an interior wall defining a bore, and cutting elements fixed to the interior wall of the tubular and extending into the bore of the tubular. Such a device may be referred to as a string shoe.Type: GrantFiled: January 18, 2008Date of Patent: November 9, 2010Inventor: David L. Budney
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Patent number: 7828079Abstract: Slough removal assemblies and methods for removing slough from boreholes are described. A slough removal assembly containing a slough barrel is lowered into a borehole having excess slough, driven into the slough to cause the slough to enter the slough barrel, and the slough removal assembly is then removed along with the excess slough. The slough removal assembly may contain a shoe coupled to the slough barrel and configured to be driven into the slough, a retainer positioned between the shoe and the slough barrel to retain slough inside of the slough barrel, and a driving mechanism (such as a drop hammer) to drive the slough assembly into the slough. The slough removal assembly may be coupled either to a wireline system or to a drill string for insertion into and removal from the borehole.Type: GrantFiled: December 29, 2008Date of Patent: November 9, 2010Assignee: Longyear TM, Inc.Inventor: Thomas J Oothoudt
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Patent number: 7789154Abstract: A jet bushing for a wellbore cleanup tool features a jet looking uphole to reduce turbulence at the outlet ports that look downhole to accommodate the recirculation flow around the tool that captures the cuttings. The uphole oriented port keeps the pumped fluid downhole from having to make a u-turn to get back uphole and reduces turbulence to allow a higher recirculation flow at the tool to pick up and capture cuttings within the tool.Type: GrantFiled: August 3, 2007Date of Patent: September 7, 2010Assignee: Baker Hughes IncorporatedInventor: John P. Davis