Destroying Or Dissolving Well Part Patents (Class 166/376)
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Publication number: 20130299185Abstract: A frustoconical member includes a metal composite that has a cellular nanomatrix comprising a metallic nanomatrix material; a metal matrix disposed in the cellular nanomatrix; and a first frustoconical portion. A process of making the frustoconical member includes combining a metal matrix powder, a disintegration agent, and metal nanomatrix material to form a composition; compacting the composition to form a compacted composition; sintering the compacted composition; and pressing the sintered composition to form the frustoconical member having a tapered portion on an outer surface of the frustoconical member. The frustoconical member can be used by contacting a frustoconical portion of the frustoconical member to a tapered surface of an article; applying pressure to the frustoconical member; urging the frustoconical member in a direction relative to the article to expand a radial dimension of the article; and contacting the frustoconical member with a fluid to disintegrate the frustoconical member.Type: ApplicationFiled: May 8, 2012Publication date: November 14, 2013Applicant: BAKER HUGHES INCORPORATEDInventors: Zhiyue Xu, YingQing Xu, Gregory Lee Hern, Bennett M. Richard
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Patent number: 8579036Abstract: A valving system includes a tubular and a sleeve slidably engaged with the tubular having a seat thereon. The sleeve is configured to occlude flow from an inside of the tubular to an outside of the tubular when in a first position, allow flow between an inside of the tubular and an outside of the tubular at a first location upstream of the seat and a second location downstream of the seat when in a second position, and allow flow between an inside of the tubular and an outside at the tubular at the first location and not the second location when in a third position. The valving system also includes a disappearing member in operable communication with the tubular and the sleeve configured to prevent movement of the sleeve to the third position until disappearance thereof.Type: GrantFiled: March 14, 2011Date of Patent: November 12, 2013Assignee: Baker Hughes IncorporatedInventor: Richard YingQing Xu
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Publication number: 20130292123Abstract: Degradable balls for downhole use may include an incompliant degradable polymer and a compliant filler material, the incompliant degradable polymer having an elastic modulus of about 2 GPa or greater, and the compliant filler material having an elastic modulus of less than about 2 GPa. Such degradable balls may be useful in sealing segments of a wellbore and actuating wellbore tools.Type: ApplicationFiled: May 31, 2013Publication date: November 7, 2013Inventors: Zachary Ryan Murphree, Michael Linley Fripp, Zachary William Walton, Feng Liang, Dwight Fulton
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Patent number: 8573295Abstract: A method of unplugging a seat, including dissolving at least a surface of a plug seated against the seat, and unseating the plug from the seat.Type: GrantFiled: November 16, 2010Date of Patent: November 5, 2013Assignee: Baker Hughes IncorporatedInventors: Michael H. Johnson, Zhiyue Xu
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Patent number: 8567511Abstract: Apparatus for running a casing string into a wellbore features a housing arranged for coupling to the casing string in fluid communication with an interior thereof, a shoe rotatably supported at a lower end of the housing, and a drive mechanism. The drive mechanism features a shaft extending internally along the housing toward the upper end thereof from a connection of the shaft to the shoe, and a ribbon coiling around and along the shaft toward the shoe in a manner radially spaced from the shaft above the connection thereof to the shoe. The ribbon drive rotations of the shaft through action of a fluid on said ribbon under pumping of said fluid through the housing from the casing. The drive mechanism thus employs a simple structure of a rotor assembly spinning within the housing, without requiring an additional stator or housing-carried vanes.Type: GrantFiled: June 8, 2011Date of Patent: October 29, 2013Inventor: Randle Mackenzie Loree
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Publication number: 20130255961Abstract: A completion system, including a lower completion initially fluidly open. A production string is included having a removable plug configured to impede fluid flow through the production string. The removable plug is run in with the production string. An intermediate completion assembly is included that couples the lower completion to the production string. The intermediate completion assembly has a packer device and a barrier valve. The packer device is operatively arranged to be set by pressurizing fluid in the production string against the removable plug. The barrier valve is operatively arranged for selectively impeding fluid flow between the production string and the lower completion after the removable plug is removed. A method of completing a borehole is also included.Type: ApplicationFiled: March 29, 2012Publication date: October 3, 2013Applicant: BAKER HUGHES INCORPORATEDInventors: Raymond A. Frisby, Jeffrey S. Phillips, Roy N. Nelson, Donald Lauderdale
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Patent number: 8534957Abstract: A method and system for repairing, replacing or installing an underground pipeline using an appropriate tool head. A coolant, preferably a cryogenic liquid, is injected in front of the tool head to embrittle or otherwise reduce the toughness of the material ahead of the tool head. The method and system of this invention are particularly suitable for use in connection with pipe splitting and pipe bursting, where a pig disposed within the underground pipeline is connected with the appropriate tool head forming a space between the pig and the tool head into which the coolant is introduced. The pipe between the pig and the tool head is embrittled by the coolant, reducing the resistance of a pipe to splitting or bursting which, in turn, reduces the force required for the pig to pull the tool head as the pig is motivated through the pipe.Type: GrantFiled: March 9, 2010Date of Patent: September 17, 2013Assignee: Gas Technology InstituteInventor: Daniel Allen Ersoy
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Publication number: 20130233548Abstract: An expandable tubular assembly includes an expander for expanding a tubular. The expander may be hydraulically actuated. A bore obstruction object may be received in a receptacle sleeve that is a modular component of the expandable tubular assembly. In this respect, the expandable tubular assembly may be quickly fitted with a receptacle sleeve designed to receive selected type of bore obstruction object.Type: ApplicationFiled: March 5, 2013Publication date: September 12, 2013Applicant: WEATHERFORD/LAMB, INC.Inventors: Darren Richard Santeler, Derek Slater Payne, Mike A. Luke
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Publication number: 20130206425Abstract: A selectively corrodible downhole article includes a movable cylindrical member comprising a first section and an axially separated second section, the first section comprising a first material having a first galvanic activity, the second section comprising a second material having a second galvanic activity, the first galvanic activity being greater than the second, the first section being electrically isolated from the second section; and a fixed member disposed on the cylindrical member and configured for electrical contact with the first or second section, the fixed member comprising an intermediate material having an intermediate galvanic activity, the intermediate galvanic activity being intermediate the first and second galvanic activity, the movable cylindrical member configured for movement from a first position where the first section is disposed and in electrical contact with the fixed member and a second position where the second section is disposed and in electrical contact with the fixed member.Type: ApplicationFiled: February 13, 2012Publication date: August 15, 2013Applicant: Baker Hughes IncorporatedInventors: Oleg A. Mazyar, Michael H. Johnson
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Publication number: 20130199798Abstract: A system for providing temporary protection, including an operative device located at an external surface of a member. A cover is externally disposed with respect to the operative device for initially protecting the operative device. The cover is chemically reactive to a downhole fluid for removal of the protective cover. A method of temporarily protecting an operative device is also included.Type: ApplicationFiled: February 3, 2012Publication date: August 8, 2013Applicant: BAKER HUGHES INCORPORATEDInventors: Kushal Seth, Brian L. Thigpen, Zhiyue Xu
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Patent number: 8499834Abstract: A milling tool which includes a nose cutting portion, a cutting section having a plurality of hardened cutters and a shaft portion. A wear pad is disposed on the cutting section and shaft portion. Upon the shaft portion, the wear pad extends radially outwardly to an engagement diameter that exceeds the maximum cutting diameter of the cutters.Type: GrantFiled: October 1, 2010Date of Patent: August 6, 2013Assignee: Baker Hughes IncorporatedInventors: Christopher W. Guidry, Guruswami Navin, Lambertus C. F. Joppe, Andrew D. Ponder, Calvin Stowe
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Patent number: 8490690Abstract: A method of selectively controlling flow through a well screen can include installing the well screen in a wellbore, and then exposing the well screen to an aqueous fluid, thereby permitting flow through the well screen. A well screen assembly can include a well screen and an acid containing structure which dissolves in response to contact with an aqueous fluid, whereby flow through the well screen is selectively permitted.Type: GrantFiled: September 21, 2010Date of Patent: July 23, 2013Assignee: Halliburton Energy Services, Inc.Inventor: Jean-Marc Lopez
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Patent number: 8485265Abstract: Downhole devices including degradable materials and methods of using such devices to control downhole operations are disclosed. A method for controlling a downhole operation includes providing a device that includes a degradable material downhole; and degrading the degradable material to activate the device. Activation of the device may result in a displacement or flow (actuators) that may be used to control or monitor (sensor) a downhole oilfield operation. A downhole device for use in a well penetrating a formation includes, in part or in whole, a degradable material.Type: GrantFiled: June 27, 2007Date of Patent: July 16, 2013Assignee: Schlumberger Technology CorporationInventors: Manuel Marya, Rashmi Bhavsar
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Publication number: 20130161024Abstract: A downhole fluid flow control system (100). The downhole fluid flow control system (100) includes a flow control component (122) having an internal flow path (134) and a temporary sealing substance (136) disposed within the internal flow path (134). During installation of the downhole fluid flow control system (100) in a well, the temporary sealing substance (136) prevents fluid flow through the flow control component (122), which prevents plugging or clogging of the internal flow path (134). After installation, the temporary sealing substance (136) degrades when exposed to a water source in the well, which enables fluid flow through the flow control component (122) and thus proper operation of the fluid flow control system (100).Type: ApplicationFiled: August 13, 2012Publication date: June 27, 2013Applicant: HALLIBURTON ENERGY SERVICES, INC.Inventor: Stephen Michael Greci
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Publication number: 20130146302Abstract: A downhole assembly with controlled degradation including a body having a cavity therein and is formed from a first material having a first electrode potential. An insert is disposed in the cavity, the insert electrically coupled to the body and formed from a second material having a second electrode potential, with the first electrode potential being more negative than the second electrode potential.Type: ApplicationFiled: December 13, 2011Publication date: June 13, 2013Applicant: BAKER HUGHES INCORPORATEDInventors: Sean Gaudette, Wayne Furlan
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Publication number: 20130133897Abstract: A valve device for restricting flow is provided that includes a degradable portion. A method of temporarily blocking flow is also provided which includes a degradable portion of an oilfield element.Type: ApplicationFiled: May 31, 2012Publication date: May 30, 2013Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Jason Baihly, Don Aldridge, Rashmi B. Bhavsar, Manuel P. Marya, Nitin Y. Vaidya
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Patent number: 8443892Abstract: A fracturing operation is done in open hole. The annular space is spanned by telescoping members that are located behind isolation valves. A given bank of telescoping members can be uncovered and the telescoping members extended to span the annular space and engage the formation in a sealing manner. Pressurized fracturing fluid can be pumped through the telescoped passages and the portion of the desired formation fractured. In a proper formation, cementing is not needed to maintain wellbore integrity. In formations that need annular space isolation, the string in a preferred embodiment can have an external material that grows to seal the annular space in lieu of a traditional cementing operation.Type: GrantFiled: January 23, 2012Date of Patent: May 21, 2013Assignee: Baker Hughes IncorporatedInventors: Bennett M. Richard, Yang Xu
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Publication number: 20130118759Abstract: A method for degrading a downhole article includes exposing the downhole article comprising a controlled electrolytic material to a composition that comprises a reducing agent. The method also includes contacting the downhole article with the reducing agent to degrade the downhole article. Additionally, a composition for degrading a downhole article includes water, chelant, metal ions, and a reducing agent that includes ascorbic acid, erythorbic acid, a derivative thereof, a salt thereof, or a combination thereof.Type: ApplicationFiled: November 11, 2011Publication date: May 16, 2013Applicant: BAKER HUGHES INCORPORATEDInventor: James B. Crews
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Patent number: 8439108Abstract: Degradable polylactic or polyhydroxyalkanoate polymers may be used to viscosify aqueous fluids for use in wells, Sand control screen or liner can be coated with a solid degradable polymer during placement in a well. Mechanical changes or flow changes in a well can be caused by solid degradable polymer that changes physical properties after it is placed in a well. Parts of devices or entire devices can be made of solid degradable polymer that converts to a fluid after selected times in an aqueous environment in a well.Type: GrantFiled: July 6, 2012Date of Patent: May 14, 2013Inventor: Claude E. Cooke, Jr.
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Publication number: 20130112429Abstract: A method for degrading a downhole article includes exposing the downhole article to a composition comprising a corrosive agent selected from a reducing sugar, ester, aminocarboxylic acid, or a combination thereof. The method also includes contacting the downhole article with the corrosive agent to degrade the downhole article. Additionally, a composition for degrading a downhole article includes water, salt, and a corrosive agent selected from a reducing sugar, ester, aminocarboxylic acid, or a combination thereof.Type: ApplicationFiled: November 8, 2011Publication date: May 9, 2013Applicant: Baker Hughes IncorporatedInventor: James B. Crews
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Patent number: 8434559Abstract: A well tool can include a flow path, and a flow blocking device which selectively prevents flow through the flow path. The device can include an anhydrous boron compound. A method of constructing a downhole well tool can include forming a structure of a solid mass comprising an anhydrous boron compound, and incorporating the structure into the well tool.Type: GrantFiled: February 27, 2012Date of Patent: May 7, 2013Assignee: Halliburton Energy Services, Inc.Inventors: Bradley L. Todd, Thomas D. Welton, Luke W. Holderman, Ivan Suleiman
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Patent number: 8430174Abstract: A well tool for use with a subterranean well can include an elongated passageway and a plug which prevents fluid communication through the passageway for a predetermined period of time. The plug can including an anhydrous boron compound, whereby the predetermined period of time is determined by a length of the anhydrous boron compound. A method of operating a well tool in conjunction with a subterranean well can include exposing an anhydrous boron compound to an aqueous fluid, with the anhydrous boron compound being included in a plug which prevents fluid communication through a passageway of the well tool. The well tool can be operated in response to fluid communication being permitted through the passageway a predetermined period of time after the exposing step.Type: GrantFiled: September 10, 2010Date of Patent: April 30, 2013Assignee: Halliburton Energy Services, Inc.Inventors: Luke W. Holderman, Jean-Marc Lopez
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Patent number: 8430173Abstract: A well tool can include a flow path, and a flow blocking device which selectively prevents flow through the flow path. The device can include an anhydrous boron compound. A method of constructing a downhole well tool can include forming a structure of a solid mass comprising an anhydrous boron compound, and incorporating the structure into the well tool.Type: GrantFiled: April 12, 2010Date of Patent: April 30, 2013Assignee: Halliburton Energy Services, Inc.Inventors: Bradley L. Todd, Thomas D. Welton, Luke W. Holderman, Ivan Suleiman
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Patent number: 8424610Abstract: A flow control arrangement includes a housing defining one or more openings therein. A valve structure is alignable and misalignable with the one or more openings in the housing. Further included in the flow control arrangement is one or more plugs, one each in each of the one or more openings. Each plug is reducible by one or more of exposure to downhole fluids and applied dissolution fluids. A method for carrying out a series of downhole operations includes running the flow control arrangement to a target depth, carrying out a downhole operation requiring the housing to be radially permeability fluid restricted, reducing the plug, carrying out a downhole operation requiring fluid pressure communication through the one or more openings, and mechanically intervening to close the valve structure thereby rendering the one or more openings of the arrangement radially impermeable.Type: GrantFiled: March 5, 2010Date of Patent: April 23, 2013Assignee: Baker Hughes IncorporatedInventors: Daniel Newton, Yang Xu
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Patent number: 8413727Abstract: Disclosed herein is a dissolvable downhole tool. The tool includes, a dissolvable body constructed of at least two materials and at least one of the at least two materials is a reactive material, and a first material of the at least two materials being configured to substantially dissolve the dissolvable body and a second material configured to control reaction timing of the first material.Type: GrantFiled: May 20, 2009Date of Patent: April 9, 2013Assignee: Bakers Hughes IncorporatedInventor: Kevin C. Holmes
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Publication number: 20130081814Abstract: In one aspect, a method of performing a wellbore operation is disclosed that in one embodiment may include: deploying a device in the wellbore containing a conductive fluid, wherein the device is configured to disintegrate upon application of electrical current thereto; and applying current to the device in the wellbore using a tool to controllably disintegrate the device. In another aspect, an apparatus for use downhole is provided that in one embodiment may include a device placed at a selected location in a wellbore, wherein the device is made from a material that disintegrates when electric current is induced in to device and a tool placed proximate to the device configured to induce electric current into the device to cause the device to disintegrate.Type: ApplicationFiled: September 30, 2011Publication date: April 4, 2013Applicant: BAKER HUGHES INCORPORATEDInventors: Sean L. Gaudette, Michael H. Johnson
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Publication number: 20130081825Abstract: In one aspect, a method of method of performing a wellbore operation is disclosed that in one embodiment may include: providing a device that includes a non-explosive energetic material configured to disintegrate when subjected to a selected energy; placing the device at a selected location in the wellbore to perform a selected function; and subjecting the device to the selected energy to disintegrate the device in the wellbore after the device has performed the selected function. In another aspect an apparatus for use in a wellbore is disclosed that in one embodiment may include a device placed in the wellbore at a selected location, wherein the device includes a non-explosive energetic material configured to disintegrate when subjected to a selected energy, and a source of the selected energy configured to subject the device to the selected energy in the wellbore to disintegrate the device.Type: ApplicationFiled: October 4, 2011Publication date: April 4, 2013Applicant: BAKER HUGHES INCORPORATEDInventors: Gerald D. Lynde, Yang Xu, Bennett M. Richard, Douglas J. Murray, Edward J. O'Malley
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Publication number: 20130081826Abstract: An aqueous buffered treatment solution for removing mud cake from a well bore treatment site is made by inducing an elevated temperature in an aqueous pre-buffer solution. The aqueous pre-buffer solution is made of an acid precursor that hydrolyzes into a treatment acid, a conjugate base salt that forms the conjugate base of the acid, and an aqueous fluid. Inducing the elevated temperature forms the treatment acid. The treatment acid is operable to remove mud cake. A method for removing a portion of mud cake from a treatment site using an aqueous buffered treatment solution to establish flow-back includes the step of introducing the aqueous pre-buffer solution to the treatment site. The introduction occurs such that the pre-buffer solution fluidly contacts the mud cake. The hydrocarbon-bearing formation induces the elevated temperature in the solution. Reaction between treatment acid and the acid-reactive constituents removes a portion of the mud cake.Type: ApplicationFiled: September 28, 2012Publication date: April 4, 2013Applicant: Saudi Arabian Oil CompanyInventor: Saudi Arabian Oil Company
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Patent number: 8408308Abstract: A method for use in a wellbore includes the steps of providing an elongated, closed tubular body defining an internal chamber wherein the tubular body has an external surface formed with treated areas and an elongated recess extending longitudinally of the tubular body and running through the treated areas; retaining a detonating device in the recess adjacent the external surface of the tubular body; positioning the tubular body with the detonating device in a wellbore adjacent perforation tunnels previously formed in a surrounding well formation and filled with debris; and activating the detonating device to rupture the tubular body inwardly along the external surface forming the recess at the treated areas to expose the chamber within the tubular body to a dynamic underbalanced pressure condition such that fluid from the wellbore and debris from the perforation tunnels is drawn through the wellbore and into the chamber.Type: GrantFiled: June 2, 2010Date of Patent: April 2, 2013Assignee: Schlumberger Technology CorporationInventor: Adil Mahallab Al Busaidy
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Patent number: 8403037Abstract: A method of dissolving a tool includes exposing an outer surface of the tool to an environment reactive with the tool, reacting the tool with the environment, and applying stress to the tool. The method also includes concentrating stress on the tool at stress risers in the outer surface, and initiating fracturing the tool at the stress risers.Type: GrantFiled: December 8, 2009Date of Patent: March 26, 2013Assignee: Baker Hughes IncorporatedInventors: Gaurav Agrawal, Zhiyue Xu
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Patent number: 8397813Abstract: A plug (20) is described for carrying out tests of a well (30), a pipe or the like, comprising an explosive charge (55) with an activation mechanism (50, 51, 53) and which is detonated to remove the plug when the test is completed, and the plug is characterized in that the explosive charge elements are arranged internally in the plug. The plug preferably comprises a boring (54) that holds said explosive charge (55) with the activation mechanism, and it can alternatively comprise two or more borings (54) for the placing of a corresponding number of explosive charges (55) with activation mechanisms. The explosive charge (55) with ignitor (56) and ignition pin (57) is preferably arranged in the plug boring (54) while the other parts (50, 51, 53) of the activation mechanism are integrated in the wall of the pipe bundle (10) that holds the plug.Type: GrantFiled: April 17, 2008Date of Patent: March 19, 2013Assignee: TCO ASInventor: Viggo Brandsdal
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Publication number: 20130062072Abstract: A system for stimulating a multi-zone well includes a tubular body apportioned into at least a first zone and a second zone. The system has a first set of plugs placed in pre-drilled holes along the tubular body within the first zone. The plugs in the first set of plugs are fabricated to substantially dissolve upon contact with an acidic stimulation fluid within a first selected time. The system also has a second set of plugs placed in pre-drilled holes along the tubular body within the second zone. The plugs in the second set of plugs are fabricated to substantially dissolve upon contact with the acidic fluid within a second selected time that is greater than the first selected time.Type: ApplicationFiled: April 25, 2011Publication date: March 14, 2013Inventors: Jose Oliverio Alvarez, Michael T. Hecker
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Publication number: 20130062063Abstract: A technique includes running a seat assembly on a conveyance line into a tubing string, which has previously been installed in a well. The seat assembly includes a seat, which is adapted to receive an untethered object. The technique includes attaching the seat assembly to the string at a location downhole in the well; receiving the object to create a fluid barrier; and diverting fluid using the fluid barrier.Type: ApplicationFiled: September 13, 2011Publication date: March 14, 2013Applicant: Schlumberger Technology CorporationInventors: Jason Baihly, Michael J. Bertoja, Robert A. Parrott, Bruno Lecerf, Don Aldridge
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Publication number: 20130048305Abstract: A slip element, including a substrate at least partially formed from a material degradable upon exposure to a fluid; and an outer surface disposed on the substrate. A method of removing a slip element including exposing a substrate of the slip element to a downhole fluid for degrading the substrate.Type: ApplicationFiled: August 22, 2011Publication date: February 28, 2013Applicant: BAKER HUGHES INCORPORATEDInventors: Zhiyue Xu, Richard YingQing Xu
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Publication number: 20130048306Abstract: Apparatus and method for penetrating cement (300) surrounding a tubular (200) cemented to a formation (400). The apparatus comprises a bore (10) through the tubular wall (200), and an intermediate fluid channel (102) in an insert (100) within the bore. An inner sleeve (120) may be disposed on the interior surface of the tubular wall (200). The inner sleeve (120) is movable between a closed position wherein fluid connection between the interior of the tubular and the bore is prevented, and an open position wherein fluid connection between the interior of the tubular and the bore is allowed. An abrasive and/or etching fluid is supplied through the channel (102) to remove cement and/or the insert (100) or piston assembly.Type: ApplicationFiled: August 30, 2011Publication date: February 28, 2013Inventors: Roger ANTONSEN, Kristoffer BRÆKKE
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Patent number: 8381813Abstract: Methods for controlling lost circulation in subterranean wells, and in particular, fluid compositions and methods for operations during which the fluid compositions are pumped into a wellbore, enter voids in the subterranean-well formation through which wellbore fluids escape, and form a seal that limits further egress of wellbore fluid from the wellbore. The methods include preparing a carrier fluid containing compressed expandable foam that may be encapsulated. The carrier fluid is then placed into a lost-circulation zone, whereupon the foam expands to form a barrier that minimizes or blocks further ingress of carrier fluid. Lost-circulation control may be supplemented by introducing additional lost-circulation materials, pumping a cement slurry behind the foam-containing carrier fluid or both.Type: GrantFiled: August 31, 2010Date of Patent: February 26, 2013Assignee: Schlumberger Technology CorporationInventors: Nelson Diaz, Jesse Lee, Stéphane Boulard
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Publication number: 20130037274Abstract: An aqueous breaking fluid having an aqueous fluid, powder particles, and at least one reducing sugar may be helpful in degrading a polymeric filter cake downhole. The aqueous breaking fluid may be introduced through a wellbore. The aqueous fluid may be or include water, brine, acid, alcohol, a mutual solvent, and mixtures thereof. A coating material of each metallic powder particle may be disintegrated such that the particle core may be released from the powder particle. The aqueous breaking fluid, which may include the reducing sugar and the released particle core, may contact and degrade the polymeric filter cake.Type: ApplicationFiled: July 30, 2012Publication date: February 14, 2013Applicant: BAKER HUGHES INCORPORATEDInventor: James B. Crews
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Publication number: 20130037269Abstract: A method and apparatus for releasing a coiled tubing internal line from a bottom hole assembly. The internal line may not have strength sufficient to permit the application of a tension force at the surface to disconnect the internal line from the bottom hole assembly. The bottom hole assembly may include a ball seat adapted to retain a ball permitting the application of a pressure differential above and below the ball seat. An anchor assembly connected to the internal line may be adapted to disconnect from the bottom hole assembly upon the application of predetermined pressure differential. A predetermined pressure differential may be used to shear a portion of the internal line releasing an upper portion of the internal line from the bottom hole assembly.Type: ApplicationFiled: October 15, 2012Publication date: February 14, 2013Applicant: BAKER HUGHES INCORPORATEDInventor: Manfred Sach
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Publication number: 20130032357Abstract: A method of removing a downhole assembly comprises contacting, in the presence of an electrolyte, a first article comprising a first material and acting as an anode, and a second article comprising a second material having a lower reactivity than the first material and acting as a cathode, the downhole assembly comprising the first article in electrical contact with the second article, wherein at least a portion of the first article is corroded in the electrolyte.Type: ApplicationFiled: August 5, 2011Publication date: February 7, 2013Applicant: BAKER HUGHES INCORPORATEDInventors: Oleg A. Mazyar, Michael Johnson, Sean Gaudette
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Patent number: 8327931Abstract: A tripping ball including two or more dissolution resistant parts of a ball and an adherent dissolvable material binding the two or more parts of the ball together. A method for making a tripping ball is also included.Type: GrantFiled: December 8, 2009Date of Patent: December 11, 2012Assignee: Baker Hughes IncorporatedInventors: Gaurav Agrawal, Zhiyue Xu
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Patent number: 8322448Abstract: A device is described for removal of a plug which is used in a well, a pipe, or the like for carrying out tests, and it is characterized by an element which, with an applied forced, is arranged to penetrate into the plug material so that this is crushed, said element is arranged to be supplied said force from an above lying element. The element (16) is preferably a ring (1) the lower end of which is arranged to be forced in a radial direction into the plug element at axial driving of a hydraulic pressure piston. Furthermore, the element is integrated into the plug.Type: GrantFiled: March 6, 2009Date of Patent: December 4, 2012Assignee: TCO ASInventor: Viggo Brandsdal
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Patent number: 8322449Abstract: A method of removing a downhole tool from a wellbore comprising contacting the tool with a heat source wherein the tool comprises at least one load-bearing component comprising a thermally degradable material. A method of reducing the structural integrity of a downhole tool comprising fabricating the load-bearing components of the tool from a thermally degradable material. A method of removing a downhole tool comprising mechanically milling and/or drilling the tool from a wellbore wherein the tool comprises at least one load bearing component comprising a phenolic resin wherein the phenolic resin comprises a rosole, a novalac or combinations thereof.Type: GrantFiled: October 19, 2011Date of Patent: December 4, 2012Assignees: Halliburton Energy Services, Inc., MCR Oil Tools, LLCInventors: Robert Preston Clayton, Kevin Berscheidt, Michael C. Robertson
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Patent number: 8322422Abstract: A method for removing at least a portion of an object in an annulus formed between an external surface of a tubular element and a wall surface. A method for removing an annulus packer, of the swellable type or the foam type, from an annulus in a wellbore comprises the placement of a jetting tool inside the tubular element and effecting a high-pressure fluid flow from the jetting tool to the object, whereby the object is removed.Type: GrantFiled: June 25, 2007Date of Patent: December 4, 2012Assignee: Halliburton Energy Services, Inc.Inventor: Rune Freyer
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Patent number: 8322426Abstract: A downhole actuator apparatus that selectively maintains a pressure differential between two pressure regions in a well. The apparatus includes a body defining first and second chambers. A piston is slidably disposed in the body and is selectively moveable between first and second positions. A barrier is disposed in the body to selectively separate the first and second chambers. A fluid is disposed in the first chamber between the barrier and the piston. A control system that is at least partially disposed within the body is operable to generate an output signal responsive to receipt of a predetermined input signal. The output signal is operable to create a failure of the barrier such that at least a portion of the fluid flows from the first chamber to the second chamber and the piston moves from the first position to the second position.Type: GrantFiled: April 28, 2010Date of Patent: December 4, 2012Assignee: Halliburton Energy Services, Inc.Inventors: Adam Wright, Donald Herbert Perkins, Michael Linley Fripp, Scott Luke Miller
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Patent number: 8307900Abstract: The disclosure, in on aspect, provides a method for performing a laser operation in a wellbore that includes displacing a wellbore fluid with a laser-compatible medium proximate a location in the wellbore where a work is desired to be performed; positioning a laser head proximate the laser-compatible medium; and passing a laser beam via the laser-compatible medium to the location for performing the laser operation. In another aspect, the disclosure provides a laser apparatus for performing a laser operation at a worksite having a fluid that includes a laser power unit that supplies laser energy to a laser head placed proximate the worksite; a fluid displacement unit that displaces at least a portion of the fluid adjacent the worksite with a laser-compatible medium; and a controller that operates the laser head to pass the laser beam to the worksite through the laser-compatible medium. In another aspect, the disclosure provides an imager associated with the laser apparatus that provides images of the worksite.Type: GrantFiled: January 10, 2007Date of Patent: November 13, 2012Assignee: Baker Hughes IncorporatedInventors: Gerald D. Lynde, Joseph P. DeGeare
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Publication number: 20120273229Abstract: A method of making a composite downhole article is disclosed. The method include forming at least one corrodible core member comprising a first material that is corrodible in a wellbore fluid at a first corrosion rate; and disposing at least one outer member on the core member, the outer member comprising a second material that is corrodible in the wellbore fluid at a second corrosion rate, wherein the corrodible core member has a composition gradient or a density gradient, or a combination thereof, and wherein the first corrosion rate is substantially greater than the second corrosion rate. A method of using a composite downhole article is also disclosed. The method includes forming a composite downhole article as described above; using the article to perform a first wellbore operation; exposing the article to the wellbore fluid; and selectively corroding the second corrodible member.Type: ApplicationFiled: April 28, 2011Publication date: November 1, 2012Inventors: Zhiyue Xu, Michael Johnson
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Patent number: 8297364Abstract: A telescopic member includes, at least a central component and a barrier disposed within the central component, the barrier has a selectively tailorable dissolution rate curve and has structural properties enabling the containment of high pressure prior to structural failure of the barrier through dissolution.Type: GrantFiled: December 8, 2009Date of Patent: October 30, 2012Assignee: Baker Hughes IncorporatedInventors: Gaurav Agrawal, Zhiyue Xu, Bennett Richard, Yang Xu
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Patent number: 8291985Abstract: Assemblies that can be disposed in a subterranean bore are described. An assembly can include a fluid restricting member in a groove. At least a portion of the fluid restricting member can be removable from the groove after being exposed to an environment of the bore to form a bypass to a tubing valve. The fluid restricting member may be positioned in a groove located between an inner wall of a base pipe and an outer wall of an assembly housing that is exterior to the base pipe. The fluid restricting member can cooperate with at least part of the tubing valve to block fluid flow and pressure equalization before at least a portion of the fluid restricting member is removed from the grove.Type: GrantFiled: September 4, 2009Date of Patent: October 23, 2012Assignee: Halliburton Energy Services, Inc.Inventor: Luke W. Holderman
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Patent number: 8291980Abstract: A tubular valving system includes a tubular having a plurality of ports. A plurality of sleeves are disposed at the tubular covering the plurality of ports, and a plug runnable within the tubular is seatingly engagable with the plurality of sleeves such that attainment of a first pressure applied against the plug and one of the plurality of sleeves causes movement of the one of the plurality of sleeves to thereby uncover at least one of the plurality of ports covered by the one of the plurality of sleeves. At least one of the plurality of sleeves is yieldable to allow passage of the plug upon attainment of a second pressure applied thereagainst, and a plurality of occlusive members occlude the plurality of uncovered ports until a later time.Type: GrantFiled: August 13, 2009Date of Patent: October 23, 2012Assignee: Baker Hughes IncorporatedInventor: Peter J. Fay
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Publication number: 20120247778Abstract: A method for reducing the friction forces between tubulars, for example coiled tubing in casing, is disclosed. The method includes mixing a selected surfactant and particles of TEFLON in oil, then adding the oil to water and pumping the mixture down the tubing. The mixture is particularly useful in coiled tubular drilling inside casing. The formulation has also been found to reduce corrosion on metal surfaces.Type: ApplicationFiled: March 30, 2011Publication date: October 4, 2012Inventors: Jerry W. Noles, JR., Alex Jason Watts