Patents by Inventor John Whitsitt

John Whitsitt has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20070240881
    Abstract: An integrated sandface completion tool that can be positioned within a wellbore in a single trip and a method of providing a sandface completion in a wellbore. An embodiment of the integrated sandface completion tool includes a casing section having a casing wall, at least one explosive charge connected to the casing wall, and a screen assembly connected within the casing section forming a screen-casing annulus, the screen assembly having openings formed along a portion thereof and a port in selective communication with the screen-casing annulus. The method includes the steps of positioning the integrated completion tool in the wellbore, detonating the explosive charge and packing the screen-casing annulus with a material.
    Type: Application
    Filed: April 14, 2006
    Publication date: October 18, 2007
    Applicant: Schlumberger Technology Corporation
    Inventors: John Whitsitt, Vladimir Vaynshteyn, Steven Henderson
  • Publication number: 20070056749
    Abstract: A dynamic inflatable sealing device for maintaining the pressure within an inflatable element at least substantially equal to the pressure in the annulus to maintain the inflatable element in a sealing position. The dynamic sealing device includes an inflatable element forming an internal chamber, the inflatable element expandable to sealing engagement with a wall, and a dynamic valve mechanism in operational connection between the internal chamber and exterior of the internal chamber substantially communicating the pressure external of the inflatable element to the internal chamber.
    Type: Application
    Filed: September 14, 2005
    Publication date: March 15, 2007
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Philippe Gambier, Jose Garcia, John Whitsitt
  • Publication number: 20060260820
    Abstract: Zonal isolation tools and methods of using same are described. The zonal isolation tools include a wellbore sealing member expandable by fluid pressure to contact a wellbore over an initial contact area, an inflation valve open during expansion of the sealing member to the initial contact area and closed upon the fluid pressure reaching a predetermined setting, a vent between the sealing member and a wellbore annulus adapted to open after the inflation valve is closed, and a compressive load imparted to the sealing member via a linear piston to achieve a sealing point at the leading edge of the sealing member. This abstract allows a searcher or other reader to quickly ascertain the subject matter of the disclosure. It will not be used to interpret or limit the scope or meaning of the claims.
    Type: Application
    Filed: April 12, 2006
    Publication date: November 23, 2006
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: John Whitsitt, Carlos Araque, David Eslinger, Philippe Gambier, Dinesh Patel, Chad Hardwick, Jason Jonas, Robert Divis, Randolph Sheffield, Bryan White, Chad Lucas
  • Publication number: 20060144590
    Abstract: A system and method for completing a well with multiple zones of production is provided. For example, a well completion system is provided including one or more polished bore receptacles installed in a casing and a fluid delivery device having at least one seal assembly for selectively isolating a selected well zone and delivering a fluid to the selected zone. Furthermore, a perforating gun may be connected to the fluid delivery device to facilitate perforating a target well zone, isolating the target well zone, and treating the target well zone in a single trip.
    Type: Application
    Filed: December 30, 2004
    Publication date: July 6, 2006
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Jorge Lopez de Cardenas, Gary Rytlewski, Matthew Hackworth, John Whitsitt, Jose Garcia
  • Publication number: 20060137874
    Abstract: A technique that is usable with a subterranean well that has a first string that lines a borehole includes running a second string into the well and engaging a deflecting face of a deflector to deflect the second string into a window of the first string. The technique includes performing at least one of positioning the second string and orienting the second string using a profile on the deflector downhole of the deflecting face.
    Type: Application
    Filed: December 28, 2004
    Publication date: June 29, 2006
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Carlos Araque, John Whitsitt, Martin Prado, Robert Neves
  • Publication number: 20050230122
    Abstract: The present invention provides for an apparatus and method to actuate a tool in a well based on one or more issued commands being interpreted and implemented by the apparatus.
    Type: Application
    Filed: February 9, 2005
    Publication date: October 20, 2005
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Brian Cho, Philippe Gambier, John Whitsitt, Arin Basmajian, Jose Garcia, Youel Hilsman
  • Publication number: 20050199401
    Abstract: The invention is a sealing system, such as a packer, that is used in a wellbore to seal against an exterior surface, such as a casing or open wellbore. The sealing system includes a swellable material that swells from an unexpanded state to an expanded state thereby creating a seal when the swellable material comes into contact with a triggering fluid.
    Type: Application
    Filed: March 10, 2005
    Publication date: September 15, 2005
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Dinesh Patel, Y. Hilsman, Herve Ohmer, Stephane Hiron, Philippe Gambier, Jonathan Whitehead, Randolph Sheffield, Rodney Wetzel, John Whitsitt, Thomas MacDougall, Nitin Vaidya, James Hendrickson, John Edwards, Donald Ross, Rashmi Bhavsar
  • Patent number: 6349770
    Abstract: The present invention provides a space-out compensating apparatus and method for sequentially and simultaneously landing an anchor seal assembly into a previously run downhole packer, and landing a tubing hanger into a wellhead, so that the integrity of the seals in the anchor seal assembly of the tool is not compromised, and the completion can be concluded in a single run.
    Type: Grant
    Filed: January 14, 2000
    Date of Patent: February 26, 2002
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Robert T. Brooks, John Whitsitt