Patents Represented by Attorney Rodney Warfford
  • Patent number: 8327746
    Abstract: Wellbore perforating devices are disclosed. In one example, a wellbore perforating device includes a plurality of shaped charges and a holder that holds the plurality of shaped charges so that upon detonation the charges intersect a common plane extending transversely to the holder.
    Type: Grant
    Filed: April 16, 2010
    Date of Patent: December 11, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Lawrence A. Behrmann, Francois Black
  • Patent number: 8322415
    Abstract: Apparatus and methods for deploying one or more sensors into a wellbore. The method can include at least partially embedding one or more sensors in one or more swellable elements; conveying the one or more sensors and the one or more swellable elements into the wellbore; at least partially swelling one or more of the swellable elements; and measuring at least one wellbore property with the one or more sensors.
    Type: Grant
    Filed: September 11, 2009
    Date of Patent: December 4, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Ives Loretz, Carlos Araque, Muhammad Shafiq, Donald Ross
  • Patent number: 8322450
    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: Grant
    Filed: May 29, 2009
    Date of Patent: December 4, 2012
    Assignee: Schlumberger Technology Corporation
    Inventor: John R. Meijer
  • Patent number: 8286708
    Abstract: Methods and apparatuses for installing lateral wells in an underground. The methods and apparatuses allow for efficiency in a milling and installation process for the lateral well. More specifically, tools and techniques are detailed which allow for controllably guided installation of a whipstock and/or subsequent production deflector hardware at locations adjacent lateral legs of a well to allow for such enhanced milling, installation and production efficiencies.
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: October 16, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Anwar Ahmed Maher Assal, Timothy M. O'Rourke, Jeremie C. Fould
  • Patent number: 8286709
    Abstract: A technique enables injection of treatment chemicals at a plurality of desired locations along a well. A multi-point chemical injection system is connected and deployed into a wellbore. The multi-point chemical injection system delivers one or more treatment chemicals along the wellbore to the desired locations at a plurality of injection zones. A single control line is run from a surface location down through the wellbore to the plurality of injection zones. The single control line is used to deliver the treatment chemical to each of the injection zones.
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: October 16, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Rex C. Mennem, Dinesh R. Patel, David Himmel, Angel R. Reyes
  • Patent number: 8276674
    Abstract: A system includes a string that includes a passageway and a plurality of tools. The system further includes an untethered object that is adapted to be deployed in the passageway such that the object travels downhole via the passageway and controllably expand its size as the object travels downhole to selectively cause one of the tools to capture the object.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: October 2, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Jorge Lopez de Cardenas, Gary L. Rytlewski, Matthew R. Hackworth
  • Patent number: 8256517
    Abstract: A tubing assembly for entering multiple boreholes includes an outer shroud having an axial throughbore, and an inner tubular member disposed in the axial throughbore, wherein the tubular member is releasably coupled to the shroud, and wherein the outer diameter of the shroud is adjustable. A tubing assembly for entering multiple boreholes may also include a shroud having an axial throughbore, a movable tubular member disposed in the axial throughbore, and a releasable coupling between the shroud and the tubular member, wherein the releasable coupling includes a retracted position allowing entry of the tubing assembly into a junction between two boreholes, wherein the releasable coupling includes an expanded position allowing movement of the tubular member relative to the shroud and prevents re-entry of the tubing assembly into the junction.
    Type: Grant
    Filed: December 30, 2009
    Date of Patent: September 4, 2012
    Assignee: Smith International, Inc.
    Inventors: Derek Ingraham, Bruce Cram
  • Patent number: 8225880
    Abstract: Disclosed herein is a completion device for a wellbore, that includes at least an elastomer circumferentially disposed around a tubular, the elastomer having a main sealing segment and at least one activation segment axially extending from the main sealing segment at opposing ends, wherein each activation segment has an exposed end; and an impermeable membrane circumferentially encasing the elastomer and configured to prevent an influx of wellbore fluids into the elastomer except at the exposed ends.
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: July 24, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Gary L. Rytlewski, John Whitsitt, Nitin Y. Vaidya
  • Patent number: 8118098
    Abstract: A technique is provided to facilitate fluid flow and pressure control in a well with an interventionless flow valve system. The valve system is coupled to a well component string deployed downhole in a wellbore. The valve system controls flow and pressure between an interior and exterior of the string and comprises a valve controlled by an activation device. The activation device is responsive to a unique pressure and time signal transmitted downhole.
    Type: Grant
    Filed: May 23, 2006
    Date of Patent: February 21, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Joe C. Hromas, Larry Grigar
  • Patent number: 8091647
    Abstract: The present embodiment of the invention relates to an apparatus and method for using components in a subsea assembly formed from a raw polymer material combined with a marine growth inhibitor material.
    Type: Grant
    Filed: August 21, 2008
    Date of Patent: January 10, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Joseph A. Nicholson, Gareth B. Eccles, Daryl H. Love
  • Patent number: 8091628
    Abstract: Apparatus and methods for providing fluid and projectiles to downhole tubulars includes a manifold. The manifold may include a housing, a cartridge disposed within the housing, and an actuator. The cartridge includes multiple throughbores for selectively allowing a fluid flow to pass through, and storing a projectile. The actuator is adapted to move the multiple throughbores of the cartridge out of and into the fluid flow to release the stored projectile into the fluid flow. The manifold may include multiple projectiles that are stored laterally relative to each other for radial translation and release into the fluid flow.
    Type: Grant
    Filed: May 30, 2007
    Date of Patent: January 10, 2012
    Assignee: Smith International, Inc.
    Inventors: Richard David Peer, Robert James Costo, Jr.
  • Patent number: 8074718
    Abstract: A downhole tool for providing a pressure differential between sub-assemblies, the downhole tool including an elongated body, a tubular assembly disposed within the elongated body, the tubular assembly including a central flowbore with an inner diameter and a central longitudinal axis, a camming device, an actuator member located below the tubular assembly, having a dual-bore configuration, the actuator member including a first bore, a second bore, and a concave seating surface formed within the second bore for receiving a obstructing device, wherein the first bore and the second bore are oriented 90 degrees to one another so that fluid may flow through the actuator while it is in either a first or a second position, and a stationary sleeve concentrically disposed between the actuator member and the elongated body is disclosed.
    Type: Grant
    Filed: October 1, 2009
    Date of Patent: December 13, 2011
    Assignee: Smith International, Inc.
    Inventor: William M. Roberts
  • Patent number: 8061430
    Abstract: A downhole contraction joint. The downhole contraction joint can include at least one anti-rotation assembly. The anti-rotation assembly can include a first tubular member at least partially disposed within a second tubular member. An axial slot can be formed through at least a portion of the first tubular member, and at least one key can be at least partially disposed within the second tubular member and the axial slot. The downhole contraction joint can also have at least one resetting assembly disposed at a first end of the anti-rotation assembly. The resetting assembly can include a c-ring secured to the second tubular member. The first tubular member can be secured to the lock ring, and the lock ring can be aligned with the c-ring. The downhole contraction joint can also include at least one control line assembly disposed about a portion of the anti-rotation assembly.
    Type: Grant
    Filed: March 9, 2009
    Date of Patent: November 22, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: Michael H. Du, Claus Endruhn, David Verzwyvelt
  • Patent number: 7992642
    Abstract: An integral polished bore assembly for use in a wellbore. The assembly includes a barrel having a polished bore; at least one no-go member positioned within the barrel; an elongated locator member having a sealing head and an end, the end extending out of the barrel; and a radial port formed through the barrel.
    Type: Grant
    Filed: May 23, 2008
    Date of Patent: August 9, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: Ahmed Amr Gewily, Anwar Assal, Dinesh R. Patel
  • Patent number: 7878257
    Abstract: A downhole trigger mechanism and method for using the same are provided. The downhole trigger mechanism can include at least two contact points spaced a longitudinal distance from one another. The trigger mechanism can be actuated when the contact points of the trigger mechanism are simultaneously contacted by at least two contact points of an actuator. The contact points of the actuator can be spaced a longitudinal distance from one another.
    Type: Grant
    Filed: February 23, 2009
    Date of Patent: February 1, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: Kuo-Chiang Chen, Gary Rytlewski, John Fleming
  • Patent number: 7837427
    Abstract: A method of transporting and storing an oilfield proppant is provided that includes transporting the proppant to a storage facility by use of a dump truck; providing a load assembly at the storage facility which comprises a load hopper and a load conveyor; transferring the proppant from the dump truck to the load hopper; and operating the load conveyor to transport the proppant from the load hopper to a proppant storage area of the storage facility to form an accumulation of stored proppant therein.
    Type: Grant
    Filed: July 9, 2007
    Date of Patent: November 23, 2010
    Assignee: Schlumberger Technology Corporation
    Inventors: Jeff Beckel, Roger Keese
  • Patent number: 7827859
    Abstract: The present invention provides methods and apparatus for obtaining downhole well pressure during wellbore operations. One method comprises providing a well intervention tool comprising a straddle sealing assembly having upper and lower annulus sealing elements and a fluid injection port positioned therebetween, the well intervention tool comprising a fluid injection bore having positioned therein a pressure measurement tool; placing the tool in straddle position about a wellbore region to be intervened, with the pressure measurement tool fluidly connected to a wellbore region below the lower annulus sealing element; and performing the wellbore intervention operation while communicating fluid from below the lower annulus sealing element to the pressure measurement tool, thus obtaining a pressure measurement below the lower annulus sealing element during the wellbore intervention operation. This abstract will not be used to interpret or limit the scope or meaning of the claims.
    Type: Grant
    Filed: May 21, 2007
    Date of Patent: November 9, 2010
    Assignee: Schlumberger Technology Corporation
    Inventors: Douglas Pipchuk, Michael H. Kenison
  • Patent number: 7823636
    Abstract: A packer includes first and second external seal elements. The first external seal element is adapted to form an annular seal in the well. The second external seal element is adapted to be moved in response to fluid in the well to produce a force to at least partially assist an operation of the packer.
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: November 2, 2010
    Assignee: Schlumberger Technology Corporation
    Inventor: Chad M. Lucas
  • Patent number: 7784546
    Abstract: An offshore oil well drilling assembly is provided that includes an offshore platform; and a tension lift frame, which supports a coiled tubing injector and a blow out preventer connected thereto and for further connection to a wellhead, wherein the tension lift frame is a free standing assembly that is supported by the platform.
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: August 31, 2010
    Assignee: Schlumberger Technology Corporation
    Inventor: Bart Patton
  • Patent number: 7757755
    Abstract: A technique provides an orientation system combined with downhole equipment used in a well. An orientation device is mounted in the downhole equipment, e.g. a bottom hole assembly, for actuation during angular displacement of the downhole equipment. A sensor is mounted to cooperate with the orientation device in detecting the angular displacement.
    Type: Grant
    Filed: October 2, 2007
    Date of Patent: July 20, 2010
    Assignee: Schlumberger Technology Corporation
    Inventors: Michael H. Kenison, L. Michael McKee, Robert Bucher, David P. Smith, Sarmad Adnan