With Expanding Anchor Patents (Class 166/118)
  • Patent number: 7779927
    Abstract: A non-metallic element system is provided as part of a downhole tool that can effectively seal or pack-off an annulus under elevated temperatures. The element system can also resist high differential pressures without sacrificing performance or suffering mechanical degradation, and is considerably faster to drill-up than a conventional element system. In one aspect, the composite material comprises an epoxy blend reinforced with glass fibers stacked layer upon layer at about 30 to about 70 degrees. In another aspect, a mandrel is formed of a non-metallic polymeric composite material. A downhole tool, such as a bridge plug, frac-plug, or packer, is also provided. The tool comprises a support ring having one or more wedges, an expansion ring, and a sealing member positioned with the expansion ring.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: August 24, 2010
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Rocky A. Turley, Craig Fishbeck, Rami Al Oudat, Patrick J. Zimmerman, Charles D. Parker, Michael R. Niklasch, William J. Eldridge, Roland Freihet, William F. Hines, III, Bill Murray
  • Patent number: 7779928
    Abstract: A non-metallic element system is provided as part of a downhole tool that can effectively seal or pack-off an annulus under elevated temperatures. The element system can also resist high differential pressures without sacrificing performance or suffering mechanical degradation, and is considerably faster to drill-up than a conventional element system. In one aspect, the composite material comprises an epoxy blend reinforced with glass fibers stacked layer upon layer at about 30 to about 70 degrees. In another aspect, a mandrel is formed of a non-metallic polymeric composite material. A downhole tool, such as a bridge plug, frac-plug, or packer, is also provided. The tool comprises a support ring having one or more wedges, an expansion ring, and a sealing member positioned with the expansion ring.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: August 24, 2010
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Rocky A. Turley, Craig Fishbeck, Rami Al Oudat, Patrick J. Zimmerman, Charles D. Parker, Michael R. Niklasch, William J. Eldridge, Roland Freihet, William F. Hines, III, Bill Murray
  • Publication number: 20100206550
    Abstract: A downhole tool has a mandrel with slip assemblies positioned thereon above and below a packer element. The slip assemblies are positioned in a manner to anchor the downhole tool in the well. The slip assemblies include a slip ring which has a plurality of slip segments. Each slip segment has inserts disposed in cavities therein. The cavities are oriented such that the longitudinal central axis of each cavity is parallel to the longitudinal central axis of each of the other cavities in the slip segment.
    Type: Application
    Filed: February 18, 2009
    Publication date: August 19, 2010
    Inventors: Joel Barlow, Jesse Porter
  • Patent number: 7766089
    Abstract: Disclosed herein is a packer system. The packer system includes, a first packing element settable to create a seal against a downhole structure, and a contingency packing element in operable communication with the first packing element, maintainable in reserve and settable at a time after which the first packing element is set.
    Type: Grant
    Filed: March 16, 2007
    Date of Patent: August 3, 2010
    Assignee: Baker Hughes Incorporated
    Inventor: Douglas J. Murray
  • Patent number: 7762322
    Abstract: A swellable packer with variable quantity feed-throughs for lines. A packer assembly for use in a subterranean well includes a generally tubular swellable seal element having an outer generally cylindrical surface, one or more cavities extending longitudinally through the seal element, and one or more longitudinally extending splits in the seal element between the outer surface and each of the cavities. One or more elongated plugs are positioned within at least one of the cavities. A method of sealing a fluid passage in a subterranean well includes the steps of: inserting one or more elongated plugs in one or more cavities which extend longitudinally through a swellable seal element of a packer assembly; and installing the packer assembly in the well. The installing step includes removing a selected number of the plugs from the cavities, and replacing the selected number of the plugs with a corresponding number of lines.
    Type: Grant
    Filed: May 14, 2008
    Date of Patent: July 27, 2010
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Kristian Andersen, Jonny Haugen
  • Publication number: 20100181080
    Abstract: An expandable downhole tool is disclosed that employs naturally occurring organic matter as the expandable material. The expandable material is located within an enclosure formed in part by an impermeable element, which may form a hydraulic seal, and a permeable membrane that permits fluids present in the wellbore to pass and interact with the organic matter. The heat and fluids present within the wellbore may cause the expandable matter to swell, and thus causing the enclosure to swell and possibly form a hydraulic seal against a wellbore or inner annulus. The expandable tool may be used as packer, plug, or other downhole tool, among others. Methods of manufacturing and using such tools are also disclosed.
    Type: Application
    Filed: March 14, 2010
    Publication date: July 22, 2010
    Inventor: Warren Michael Levy
  • Publication number: 20100147508
    Abstract: Systems and methods for installing an elastomeric element onto a packer mandrel or other existing oil field tubular equipment. In particular aspects, the packer device has a swellable elastomeric packer element.
    Type: Application
    Filed: January 29, 2010
    Publication date: June 17, 2010
    Applicant: Baker Hughes Incorporated
    Inventor: Anthony P. Foster
  • Publication number: 20100147509
    Abstract: Devices and methods for setting a packer inside a wellbore with little appreciable reduction of the useable area of the wellbore. The outer casing or liner of the wellbore contains one or more integrated casing coupler joints having an increased diameter chamber portion. A large bore packing element is carried within the increased diameter chamber portion. The packing element may be selectively actuated to form a seal against an interior tubular member. Because the packing element is located within the chamber portion of the casing coupler, the packer may be set while saving useable cross-sectional area within the casing.
    Type: Application
    Filed: February 23, 2010
    Publication date: June 17, 2010
    Applicant: Baker Hughes Incorporated
    Inventors: Bennett M. Richard, Edward O'Malley, Yang Xu, Peter Fay, Larry Urban
  • Publication number: 20100147507
    Abstract: A polymer composition includes a base polymer comprising a hydrocarbon rubber, an acrylic copolymer, and a refined oil in which the acrylic polymer is dispersed. The polymer composition is swellable when treated with an aqueous medium, non-aqueous medium, or both. A sealing element for a flow channel includes an expandable section filled with a swellable composition that swells when treated with a swelling material. The swellable composition includes the polymer composition, and the swelling material may be aqueous, non-aqueous, or both.
    Type: Application
    Filed: December 11, 2009
    Publication date: June 17, 2010
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: James R. Korte, John Thurston
  • Patent number: 7730940
    Abstract: A swelling packer system uses modules that can be joined together and mounted over a tubular using a vertical split that can be drawn closed with a tapered pin in overlapping loops. The pins are circumferentially spaced apart as between adjacent modules. End rings can protect the modules for run in and act as extrusion barriers during and after the swelling is complete. The module ends can be overlapped in an interlocking fashion which allows multiple elements to be joined together to make a packer assembly as long as desired with any combination of swelling elements in a single packer assembly. Optionally, interior grooves in the swelling material can hold split ring seals or o-ring type seals that are slipped over a tubular end before a module is clamped on. The sealing elements can be triggered with water or hydrocarbons or with other materials already in the wellbore or introduced to it or other surface or locally actuated triggers.
    Type: Grant
    Filed: January 3, 2008
    Date of Patent: June 8, 2010
    Assignee: Baker Hughes Incorporated
    Inventors: Jeffery L. Knippa, Mark J. Knebel, Edward T. Wood, Larry D. Johnson
  • Publication number: 20100126733
    Abstract: A packer that is usable with a well includes an anchor. The anchor includes at least one spirally extending ring, which is adapted to be selectively radially expanded to secure the packer to a casing string.
    Type: Application
    Filed: November 24, 2008
    Publication date: May 27, 2010
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: Gary Rytlewski
  • Publication number: 20100116496
    Abstract: Disclosed herein is a swellable packer having a support element. A portion of the support element is substantially adjacent to the base tubular. Another portion of the support element is separated from the base tubular and a portion of the area between the support element and the base tubular is filled with the swellable material. Also disclosed herein is a sealing system including a packer as described above and a method for sealing within a wellbore using a packer as describe above.
    Type: Application
    Filed: November 6, 2009
    Publication date: May 13, 2010
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Michael Allen, Frederick Lemme, Nitin Y. Vaidya
  • Publication number: 20100101806
    Abstract: This mandrel (10) comprises a body (16; 22) and a radially expandable annular sealing element (18) which comprises a centring arrangement (46) and a closure arrangement (44) which can be deployed radially between a contracted configuration and a dilated configuration. It further comprises an anchoring element (20) which is positioned at a longitudinal distance from the sealing element (18) and is radially expandable between a retracted state and a deployed state. The mandrel (10) comprises sequencing means (24) which are capable of radially deploying the closure arrangement (44) after the anchoring element (20) and the centring arrangement (46). In an at least partly deployed configuration, the centring arrangement (46) defines at least one axial passage (64) which extends through the annular sealing element (18). The closure arrangement (44) closes the or each axial passage (64) as it is deployed.
    Type: Application
    Filed: February 4, 2008
    Publication date: April 29, 2010
    Inventors: Francois Millet, Pierre-Arnaud Foucher, Paul Helderle
  • Patent number: 7703539
    Abstract: An expandable downhole tool is disclosed that employs naturally occurring organic matter as the expandable material. The expandable material is located within an enclosure formed in part by an impermeable element, which may form a hydraulic seal, and a permeable membrane that permits fluids present in the wellbore to pass and interact with the organic matter. The heat and fluids present within the wellbore may cause the expandable matter to swell, and thus causing the enclosure to swell and possibly form a hydraulic seal against a wellbore or inner annulus. The expandable tool may be used as packer, plug, or other downhole tool, among others. Methods of manufacturing and using such tools are also disclosed.
    Type: Grant
    Filed: March 21, 2007
    Date of Patent: April 27, 2010
    Inventor: Warren Michael Levy
  • Publication number: 20100084140
    Abstract: A downhole seal and anchor releasing device includes, a seal defeatable via a first pull, an anchor releasable via a second pull, and an energy dissipation device configured to dissipate enough energy from the first pull subsequent defeat of the seal to prevent release of the anchor in response to the first pull
    Type: Application
    Filed: October 6, 2008
    Publication date: April 8, 2010
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Gregory L. Hern, Charles W. Pleasants
  • Publication number: 20100071912
    Abstract: A method for plugging a downhole wellbore including, running an anchor and swellable seal disposed at a mandrel within the downhole wellbore, setting the anchor within the downhole wellbore, releasing the anchor and the swellable seal, and swelling the swellable seal into contact with another downhole structure
    Type: Application
    Filed: September 22, 2008
    Publication date: March 25, 2010
    Applicant: Baker Hughes Incorporated
    Inventor: Gordon R. Mackenzie
  • Publication number: 20100051294
    Abstract: A downhole apparatus, such as a wellbore packer, is provided with a swellable member and a fluid supply assembly. The fluid supply assembly is to receive fluid and expose the swellable member to the fluid to cause expansion of the swellable member, and comprises a support structure for supporting the swellable member on the body. In a preferred embodiment, the support structure defines a chamber and is configured to allow fluid to flow and access the swellable member. A method of use and method of sealing a wellbore is described.
    Type: Application
    Filed: August 6, 2009
    Publication date: March 4, 2010
    Applicant: SWELLTEC LIMITED
    Inventors: BRIAN NUTLEY, KIM NUTLEY
  • Patent number: 7669665
    Abstract: The mandrel comprises a body having a longitudinal axis together with a radially-expandable annular assembly. The annular assembly presents a peripheral surface for pressing against a borehole and a peripheral surface for pressing against the body. Around the longitudinal axis, the annular assembly comprises a plurality of radial-expansion blocks. Each block has a first bearing surface, a second bearing surface, and two side surfaces disposed respectively facing a side surface of at least one adjacent block. The block are displaceable relative to one another between a radially-contracted configuration, and a radially-expanded, engagement configuration in which each side surface of a block is in contact with the side surface of the adjacent block.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: March 2, 2010
    Assignee: Geoservices
    Inventors: François Millet, Pierre-Arnaud Foucher
  • Patent number: 7665538
    Abstract: A seal comprising a polymeric material having a first swelling phase having a first swelling characteristic and a second swelling phase having a second swelling characteristic, the first swelling characteristic is greater than the second swelling characteristic is utilized to seal an upper portion from a lower portion of a wellbore. A wellbore seal tool is further described comprising a swellable layer, a supporting assembly disposed adjacent the swellable layer, and an inflatable bladder.
    Type: Grant
    Filed: December 13, 2006
    Date of Patent: February 23, 2010
    Assignee: Schlumberger Technology Corporation
    Inventors: Agathe Robisson, Partha Ganguly
  • Patent number: 7665516
    Abstract: An anchoring device to secure a packer assembly within a casing, including a frangible ring having a plurality of grips on an outer circumference, wherein a first end of the frangible ring includes a plurality of circumferentially spaced slots, and an expansion ring having a plurality of castellations configured to engage the slots of the first end of the frangible ring is disclosed. A method to secure a packer assembly in a casing, including engaging a plurality of arcuate segments of a segmented ring with a plurality of slots in a first end of a frangible ring, engaging a plurality of castellations of an expansion ring with the plurality of slots on a second end of the frangible ring, and moving the expansion ring in an axial direction towards the frangible ring and splitting the frangible ring into a plurality of slip segments, thereby radially extending the plurality of slip segments and segmented ring into the casing is also disclosed.
    Type: Grant
    Filed: April 30, 2007
    Date of Patent: February 23, 2010
    Assignee: Smith International, Inc.
    Inventors: William M. Roberts, Lap T. Tran
  • Publication number: 20100038072
    Abstract: The present invention relates to a sealing and/or anchoring element for use in pipelines (1). The invention is characterized in that the sealing and/or anchoring element includes at least one helical element (5a, 5b, 14a, 14b) disposed around a string section (10), with the helical element (5a, 5b, 14a, 14b) being configured so as to be able to expand radially towards an inner wall of the pipeline (1) as the circumferential diameter thereof is increased.
    Type: Application
    Filed: February 27, 2008
    Publication date: February 18, 2010
    Inventors: Frank Akselberg, Per Olav Haughom
  • Publication number: 20100012330
    Abstract: A packer (80) for establishing sealing engagement with a surface disposed in a wellbore includes a packer mandrel (90) and a seal assembly (100, 102, 104) slidably disposed about the packer mandrel (90). The seal assembly (100, 102, 104) has a running position and a radially expanded sealing position. A piston (122) is slidably disposed about the packer mandrel (90) and operably associated with the seal assembly (100, 102, 104). A collet assembly 145 is disposed about the packer mandrel (90) and is releasably coupled to the piston (122) such that radially inwardly shifting at least portion of the collet assembly (145) decouples the collet assembly (145) from the piston (122) allowing the piston (122) to shift longitudinally relative to the packer mandrel (90) which operates the seal assembly (100, 102, 104) from the running position to the radially expanded sealing position, thereby setting the packer (80).
    Type: Application
    Filed: July 17, 2008
    Publication date: January 21, 2010
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Michael D. Ezell, Roderick B. Falconer, James Scott
  • Publication number: 20090321066
    Abstract: A packer insert for sealing multiple items used in a wellbore includes an elastomeric member having one or more channels configured to seal on the multiple items when compressed by a packing unit, wherein the elastomeric member is made of a material selected from rubber, an elastomer, and a composite material, and wherein the packer insert is not affixed to a pressure control apparatus having the packing unit disposed therein. The packer insert is axially fixed to at least one of the multiple items.
    Type: Application
    Filed: September 3, 2009
    Publication date: December 31, 2009
    Applicant: HYDRIL USA MANUFACTURING LLC
    Inventors: John P. Scoggins, William L. Carbaugh
  • Publication number: 20090294137
    Abstract: A wellbore packer having a setting mechanism adapted to apply an axial force along a force path; a seal member connected with the setting mechanism along the force path, the seal member set in response to the application of the axial force; a slip connected with the setting mechanism downstream of the seal member along the force path, the slip set in response to the application of the axial force; and an assembly adapted to transfer the axial force around the intervening seal member to the slip.
    Type: Application
    Filed: May 29, 2009
    Publication date: December 3, 2009
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: John R. Meijer
  • Publication number: 20090283254
    Abstract: A swellable packer with variable quantity feed-throughs for lines. A packer assembly for use in a subterranean well includes a generally tubular swellable seal element having an outer generally cylindrical surface, one or more cavities extending longitudinally through the seal element, and one or more longitudinally extending splits in the seal element between the outer surface and each of the cavities. One or more elongated plugs are positioned within at least one of the cavities. A method of sealing a fluid passage in a subterranean well includes the steps of: inserting one or more elongated plugs in one or more cavities which extend longitudinally through a swellable seal element of a packer assembly; and installing the packer assembly in the well. The installing step includes removing a selected number of the plugs from the cavities, and replacing the selected number of the plugs with a corresponding number of lines.
    Type: Application
    Filed: May 14, 2008
    Publication date: November 19, 2009
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Kristian Andersen, Jonny Haugen
  • Publication number: 20090283279
    Abstract: A zonal isolation system for use in a well is provided. The zonal isolation system includes a zonal isolation tool, at least one anchor, and at least one polished bore receptacle. The zonal isolation system may include a setting string for activation of the zonal isolation tool and/or the at least one anchor. The zonal isolation system may also include an isolation string for maintaining separation zones during production or injection of the well.
    Type: Application
    Filed: May 20, 2009
    Publication date: November 19, 2009
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Dinesh R. Patel, Philippe Gambier, Jose F. Garcia
  • Publication number: 20090277648
    Abstract: A downhole apparatus having a radially expanding portion and a support structure are described. The support structure comprises an attachment means for coupling to the apparatus and a support portion configured to be deployed from a first unexpanded condition to a second expanded condition by expansion of the apparatus. In one aspect of the invention, the downhole apparatus is expanded by exposing the swellable material to at least one predetermined fluid, and the support structure abuts the swellable material in its expanded form. A method of use and its application to a well packer, a hanging member, an anchor and a centralising apparatus are described.
    Type: Application
    Filed: May 21, 2009
    Publication date: November 12, 2009
    Applicant: SWELLTEC LIMITED
    Inventors: KIM NUTLEY, BRIAN NUTLEY
  • Publication number: 20090277652
    Abstract: The present invention provides an apparatus and assembly for creating a seal in a wellbore around a cable or line. The assembly includes a longitudinal body and a swellable portion which comprises a material selected to increase in volume on exposure to at least one triggering fluid. The swellable portion has a formation open to the longitudinal surface which provides a pathway for a cable or line to extend through the swellable portion, and an insert of swellable material. In an embodiment of the invention, the insert partly or fully encloses or encapsulates the cable or line. An aspect of the invention is characterised by the provision of a formation which is open to an outer longitudinal surface of the body.
    Type: Application
    Filed: February 26, 2009
    Publication date: November 12, 2009
    Applicant: SWELLTEC LIMITED
    Inventors: Kim Nutley, Brian Nutley
  • Publication number: 20090260801
    Abstract: A ring member for a downhole apparatus including a swellable material selected to increase in volume on exposure to at least one triggering fluid is described. The ring member is configured to cooperate with a swellable member disposed on a body of the apparatus, and may, for example, function as a gauge ring or a retaining member. The ring member is secured to the apparatus via a coupling arrangement which couples the body to an adjacent well string section. In one embodiment, the ring member is threaded into the well string. In another, it is disposed over an upstanding formation such as a coupling sleeve, for example, by clamping. An assembly and a method of assembly are also described.
    Type: Application
    Filed: April 21, 2009
    Publication date: October 22, 2009
    Applicant: SWELLTEC LIMITED
    Inventors: KIM NUTLEY, BRIAN NUTLEY
  • Publication number: 20090242188
    Abstract: An isolation tool for use in a tubular. The isolation tool comprising gripping members and sealing members to engage and seal the isolation tool to an inner wall of the tubular at a desired location in the tubular. The isolation tool further comprising a locking system that allows the isolation tool to be set in a desired position within the tubular. The locking system prevents the isolation tool from any further movement which would unset it from the desired position.
    Type: Application
    Filed: March 18, 2009
    Publication date: October 1, 2009
    Inventor: Keith Hadley
  • Publication number: 20090242214
    Abstract: Downhole tools for anchoring and isolating at least one zone in a wellbore are disclosed. The downhole tools comprise a mandrel having an upper end, a lower end, an outer wall surface, and a longitudinal bore disposed therethrough having an axis. One or more anchors are disposed through the outer wall surface of the mandrel. Each of the anchors has a retracted position and an extended position. An isolation element is disposed along the outer wall surface of the mandrel. The isolation element may cover the anchors or be disposed, above, below, or around the anchors. Engagement of the isolation element with the inner wall surface of the wellbore to isolate at least one zone of the wellbore may be accomplished by piercing the isolation element to permit wellbore fluid to contact a swellable material contained within the isolation element, or by pumping fluid into the isolation element.
    Type: Application
    Filed: March 25, 2008
    Publication date: October 1, 2009
    Inventors: Anthony P. Foster, BASIL J. JOSEPH
  • Publication number: 20090211767
    Abstract: A method of forming a downhole apparatus and an apparatus formed by the method is described. The method comprising the steps of providing a body having a longitudinal axis and forming an expanding portion on the body from multiple turns of a partially or substantially cured material around the longitudinal axis of the body. The material is selected to increase in volume on exposure to at least one predetermined fluid, such as a wellbore fluid. Embodiments of the invention include wellbore packers formed by the method.
    Type: Application
    Filed: February 26, 2009
    Publication date: August 27, 2009
    Applicant: SWELLTEC LIMITED
    Inventors: Kim Nutley, Brian Nutley
  • Publication number: 20090211770
    Abstract: A downhole apparatus is described comprising a body and a sealing arrangement located on the body. The body has a longitudinal axis and the sealing arrangement comprises at least one elongated sealing member with an axis of elongation extending around the longitudinal axis. The sealing member comprises a material selected to expand on exposure to at least one predetermined fluid, such as a hydrocarbon or aqueous fluid encountered in a wellbore. A method of forming the apparatus and methods of use are described. Embodiments of the invention relate to wellbore packers.
    Type: Application
    Filed: February 26, 2009
    Publication date: August 27, 2009
    Applicant: SWELLTEC LIMITED
    Inventors: KIM NUTLEY, BRIAN NUTLEY, GLEN ROBITAILLE
  • Publication number: 20090205817
    Abstract: A packer assembly comprises a tubular member and a packer system that circumferentially overlies the tubular member. The packer system includes end portions and a central portion disposed between the end portions. The central portion and the end portions are formed of material that swells when contacted with a swelling fluid. The central and end portions are constructed to swell upon contact with the swelling fluid so that the central portion swells to a diameter defined by a wall of the wellbore more rapidly than the end portions. In such a configuration, the central portion of the packer system can be fully swollen prior to the full swelling of the end portions.
    Type: Application
    Filed: February 6, 2009
    Publication date: August 20, 2009
    Inventors: Eric J. Gustafson, William S. Butterfield, Peter Williamson
  • Publication number: 20090205843
    Abstract: Methods and apparatus include tubing expanded to create a seal in an annulus surrounding the tubing. The tubing includes a sealing material selected to cause forming of undulations in a diameter of the tubing upon expansion of the tubing. Various factors of the sealing material such as deviations in its thickness influence sealing performance of the tubing with the sealing material.
    Type: Application
    Filed: February 19, 2009
    Publication date: August 20, 2009
    Inventors: Varadaraju Gandikota, Lev Ring
  • Publication number: 20090205816
    Abstract: A composition suitable for use in a packer element for a wellbore includes: a hydrocarbon-swellable polymer, the hydrocarbon-swellable polymer present in the composition in an amount between about 10 and 30 percent by weight; an oil-resistant polymer, the oil-resistant polymer present in the composition in an amount between about 10 and 30 percent by weight; and a hydrocarbon swelling agent, the hydrocarbon swelling agent present in the composition in an amount between about 15 and 60 percent by weight. A composition as described may have a good balance of the swelling properties of the hydrocarbon-swellable polymer and the mechanical properties of the oil-resistant polymer. These properties may be useful in a packer element for a wellbore.
    Type: Application
    Filed: February 6, 2009
    Publication date: August 20, 2009
    Inventors: Dilip K. De, William S. Butterfield
  • Publication number: 20090200043
    Abstract: A packer system for a wellbore includes a tubular member and a packer element mounted on the tubular member. The packer element is formed of a swellable polymeric material, the packer element having a radially-outward external surface, the surface including a plurality of radially-inwardly extending recesses formed therein. The recesses provide additional surface area that can contact a swelling fluid, thereby increasing the swelling rate of the packer element.
    Type: Application
    Filed: February 6, 2009
    Publication date: August 13, 2009
    Inventor: Robert L. Olinger
  • Publication number: 20090173505
    Abstract: Techniques are provided for sealing a communication line within a device positioned in a wellbore. The communication line may be continuous and extends through a pass-through arranged generally longitudinally through the device. Swellable sealing material is positioned about and/or over the communication line which is placed in the pass-through of the device to form and maintain a secure seal once the device is submerged in a fluid that causes the swellable sealing material to expand.
    Type: Application
    Filed: January 4, 2008
    Publication date: July 9, 2009
    Applicant: Schlumberger Technology Corporation
    Inventors: Dinesh R. Patel, Nitin Y. Vaidya
  • Publication number: 20090159298
    Abstract: Disclosed herein is a methods and systems for completing a well with fluid—gas and liquid—tight lower completion and an apparatus for doing the same which includes a packer located downhole of a formation isolation well control barrier device and a formation isolation device located downhole of a sand control device.
    Type: Application
    Filed: December 19, 2008
    Publication date: June 25, 2009
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: Anwar Ahmed Maher Assal
  • Publication number: 20090159265
    Abstract: A packer-anchoring device between an annular packer and a body, wherein the annular packer is provided, at least at one of its end portions, with an expandable end ring.
    Type: Application
    Filed: May 8, 2006
    Publication date: June 25, 2009
    Inventor: Rune Freyer
  • Publication number: 20090159295
    Abstract: An apparatus for deploying an instrument usable with a well comprises at least one reversibly expandable structure, at least one actuator operable to change a perimeter dimension of the at least one reversibly expandable structure, at least one instrument disposed interior of the at least one reversibly expandable structure, and having an axial dimension, and tractoring fluid disposed between the at least one reversibly expandable structure and the at least one instrument. The apparatus is operable to perform at least one of exerting thrust to convey the at least one instrument with respect to at least one adjacent surface, creating compensating pressure between the at least one instrument and the at least one adjacent surface, and sealing between the at least one instrument and the at least one adjacent surface.
    Type: Application
    Filed: February 20, 2008
    Publication date: June 25, 2009
    Inventors: Julio C. Guerrero, Hitoshi Tashiro, Bartley Patton, Hubertus V. Thomeer, Robin Mallalieu
  • Publication number: 20090139707
    Abstract: A packer assembly which incorporates a swellable elastomeric packer element and one or more swellable thermoplastic components. The swellable thermoplastic components are support rings that are located at each axial end of the elastomeric element and provide positive mechanical backups for the elastomeric element to limit extrusion of the packer element.
    Type: Application
    Filed: June 6, 2008
    Publication date: June 4, 2009
    Applicant: Baker Hughes Incorporated
    Inventors: Vel Berzin, Douglas J. Murray, Edward T. Wood, Steven N. Bailey, Robert O. Castillo, Darwin D. Arline
  • Publication number: 20090139708
    Abstract: Systems and methods for installing an elastomeric element onto a packer mandrel or other existing oil field tubular equipment. In particular aspects, the packer device has a swellable elastomeric packer element.
    Type: Application
    Filed: June 6, 2008
    Publication date: June 4, 2009
    Applicant: Baker Hughes Incorporated
    Inventor: Anthony P. Foster
  • Publication number: 20090126925
    Abstract: A helical backup element includes a tubular body of material and a helical opening in the tubular body.
    Type: Application
    Filed: May 19, 2008
    Publication date: May 21, 2009
    Applicant: Baker Hughes Incorporated
    Inventors: RANDALL V. GUEST, MARC N. SAMUELSON, JUSTIN P. VINSON, DENNIS E. KROLL
  • Patent number: 7510017
    Abstract: A device includes a main body adapted to couple between a first element of a working string and a second element of the working string. A seal is provided about the main body and is adapted to substantially sealingly engage a wall of the wellbore. An conductor is carried by the main body. The conductor is adapted to communicate at least one of electrical current or a light signal between an interior of the first element and the second element while the seal is substantially sealingly engaging the wall of the wellbore, while the device is released from sealingly engaging the wall of the wellbore, and/or both.
    Type: Grant
    Filed: November 9, 2006
    Date of Patent: March 31, 2009
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Matt Howell, James C. Tucker, Mike Connell
  • Publication number: 20090071641
    Abstract: A seal includes a seal body configured to form a teardrop shaped seal member upon axial compression of the seal body; a gauge ring in operable communication with the seal body and capable of applying an axial load on the seal body and method.
    Type: Application
    Filed: December 3, 2007
    Publication date: March 19, 2009
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Sean L. Gaudette, James C. Doane
  • Publication number: 20090065191
    Abstract: A support assembly for a deformable sealing element of a downhole tool such as a packer, bridge plug or straddle. The support assembly has first and second support devices at each end of the sealing element with each device having an elastically deformable support member adapted to be located between the respective end of the sealing element and an actuating member of the downhole tool. Additionally, a guide member with an inclined guide surface is provided such that the support member travels along the inclined surface when a force is exerted by the actuating member to expand the sealing element radially into abutment with a surface downhole. The support member moves radially outwards to support the respective end of the sealing element during deformation.
    Type: Application
    Filed: July 16, 2008
    Publication date: March 12, 2009
    Inventors: Michael A. Reid, William S. Burnett
  • Publication number: 20080308266
    Abstract: A drillable bridge plug comprising a mandrel, a sealing element disposed around the mandrel, a plurality of backup rings adjacent the sealing element, a lower slip assembly disposed around the mandrel, an upper slip assembly disposed around the mandrel, an upper cone adjacent the upper slip assembly and engaged with the mandrel with at least one axial locking apparatus and at least one rotational locking apparatus, and a lower cone adjacent the lower slip assembly and engaged with the mandrel with at least one axial locking apparatus and at least one rotational locking apparatus. A drillable bridge plug comprising a mandrel and at least one slip assembly at least partially made of a material having less than 10% elongation.
    Type: Application
    Filed: August 26, 2008
    Publication date: December 18, 2008
    Applicant: SMITH INTERNATIONAL, INC.
    Inventors: William M. Roberts, James A. Simson, George J. Melenyzer
  • Publication number: 20080277109
    Abstract: A downhole tool includes a swellable core, and a coating that encapsulates the swellable core, wherein the coating is made of a material comprising a component soluble in a selected fluid and a component insoluble in the selected fluid. A method for controlling a downhole tool includes disposing a downhole tool in a wellbore, wherein the downhole tool includes a swellable core, and a coating that encapsulates the swellable core, wherein the coating is made of a material comprising a component soluble in a selected fluid and a component insoluble in the selected fluid; and exposing the swellable device to the selected fluid to increase the permeability of the coating to allow the swellable core to swell.
    Type: Application
    Filed: April 15, 2008
    Publication date: November 13, 2008
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: Nitin Y. Vaidya
  • Publication number: 20080264627
    Abstract: An anchoring device to secure a packer assembly within a casing, including a frangible ring having a plurality of grips on an outer circumference, wherein a first end of the frangible ring includes a plurality of circumferentially spaced slots, and an expansion ring having a plurality of castellations configured to engage the slots of the first end of the frangible ring is disclosed. A method to secure a packer assembly in a casing, including engaging a plurality of arcuate segments of a segmented ring with a plurality of slots in a first end of a frangible ring, engaging a plurality of castellations of an expansion ring with the plurality of slots on a second end of the frangible ring, and moving the expansion ring in an axial direction towards the frangible ring and splitting the frangible ring into a plurality of slip segments, thereby radially extending the plurality of slip segments and segmented ring into the casing is also disclosed.
    Type: Application
    Filed: April 30, 2007
    Publication date: October 30, 2008
    Applicant: SMITH INTERNATIONAL, INC.
    Inventors: William M. Roberts, Lap T. Tran