Patents by Inventor John R. Whitsitt

John R. 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).

  • Patent number: 11111757
    Abstract: A technique facilitates formation of a gravel pack. A well completion is provided to facilitate improved gravel packing during a gravel packing operation and subsequent production. The well completion is constructed to freely return a gravel pack carrier fluid through a base pipe during gravel packing. A valve system is positioned to enable restriction of fluid flow into the base pipe following the gravel packing operation. The valve system may be selectively actuated to restrict the fluid flow into the base pipe via a signal such as a pressure signal or timed electric signal.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: September 7, 2021
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Bryan Stamm, Michael Dean Langlais, John R. Whitsitt
  • Publication number: 20200011155
    Abstract: A technique facilitates formation of a gravel pack. A well completion is provided to facilitate improved gravel packing during a gravel packing operation and subsequent production. The well completion is constructed to freely return a gravel pack carrier fluid through a base pipe during gravel packing. A valve system is positioned to enable restriction of fluid flow into the base pipe following the gravel packing operation.
    Type: Application
    Filed: March 16, 2018
    Publication date: January 9, 2020
    Inventors: Bryan Stamm, Michael Dean Langlais, John R. Whitsitt
  • Patent number: 10233732
    Abstract: A technique facilitates active zonal control over the inflow of fluids into a lateral wellbore completion at individual well zones of a plurality of well zones. The completion may comprise a plurality of sand screens through which inflowing fluids pass before entering an interior of the completion, e.g. before entering an interior of a completion base pipe. A control module is positioned along the completion between well zones. The control module is controlled via electrical control signals and is operatively connected with a plurality of intelligent flow control devices which are located along the completion in corresponding well zones. Based on signals received, the control module individually controls the intelligent flow control devices to allow or block flow into an interior of the completion at each well zone.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: March 19, 2019
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Mohamed Aly Sadek, Bryan Stamm, Stephen Dyer, John R. Whitsitt, Oguzhan Guven, Parvesh Singh, Srinivas Poluchalla
  • Publication number: 20180291700
    Abstract: An apparatus includes a body member and a ring member. The body member has a through passageway, and the body member includes an outer engagement surface. The ring member has a contracted state and an expanded state, and the ring member includes an inner engagement surface and an outer surface. The seal member is adapted to axially move with respect to the body member in response to the application of an axial force such that the outer engagement surface of the body member physically engages the inner engagement surface of the ring member to radially expand the ring member to transition the ring member to the expanded state and cause the outer surface of the ring member to contact an inner wall of a tubing string. The physical engagement of the inner engagement surface of the ring member with the outer engagement surface of the body member forms a seal between the ring member and the body member.
    Type: Application
    Filed: April 11, 2017
    Publication date: October 11, 2018
    Inventors: Huilin Tu, Kyle Tse, John R. Whitsitt, Gregoire Jacob
  • Publication number: 20180030811
    Abstract: A technique facilitates active zonal control over the inflow of fluids into a lateral wellbore completion at individual well zones of a plurality of well zones. The completion may comprise a plurality of sand screens through which inflowing fluids pass before entering an interior of the completion, e.g. before entering an interior of a completion base pipe. A control module is positioned along the completion between well zones. The control module is controlled via electrical control signals and is operatively connected with a plurality of intelligent flow control devices which are located along the completion in corresponding well zones. Based on signals received, the control module individually controls the intelligent flow control devices to allow or block flow into an interior of the completion at each well zone.
    Type: Application
    Filed: July 29, 2016
    Publication date: February 1, 2018
    Inventors: Mohamed Aly Sadek, Bryan Stamm, Stephen Dyer, John R. Whitsitt, Oguzhan Guven, Parvesh Singh, Srinivas Poluchalla
  • Patent number: 9650851
    Abstract: A technique includes deploying an untethered object though a passageway of a string in a well; and sensing a property of an environment of the string, an electromagnetic coupling or a pressure as the object is being communicated through the passageway. The technique includes selectively autonomously operating the untethered object in response to the sensing.
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: May 16, 2017
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: John R. Whitsitt, John A. Booker, Thomas Daniel MacDougall, Gary L. Rytlewski
  • Publication number: 20150361761
    Abstract: A technique that is usable with a well includes deploying a cable-conveyed object in a passageway of a string in the well; using the object to sense a property of an environment of the string and communicating an indication of the sensed property to an Earth surface of the well; remotely controlling an operation of the object to change a state of a first downhole valve assembly based at least in part on the communication; and using the object to control a state of the other downhole valve assembly(ies) during deployment of the object in the well.
    Type: Application
    Filed: June 13, 2014
    Publication date: December 17, 2015
    Inventors: Theodore Lafferty, John R. Whitsitt, Matthew J. Miller
  • Publication number: 20150285023
    Abstract: Systems and methods for completing a well, involving a fracture placement packer assembly comprising an inflatable packer positioned on an uphole side of the assembly; the inflatable packer is structured to execute repeated inflation/deflation cycles in response to an inflation/deflation procedure, and wherein the inflatable packer is a self-anchoring packer; and the fracture placement packer assembly is structured to be couplable to a conveyance device.
    Type: Application
    Filed: October 25, 2013
    Publication date: October 8, 2015
    Inventors: Matthew J. Miller, John R. Whitsitt, J. Ernest Brown
  • Patent number: 8776890
    Abstract: A tool that is usable in a well and may include an operator, a switch, a resilient device and an indexer. The switch may be configured to selectively communicate a first force to the operator, thereby actuating the tool. The resilient device may exert a second force. The indexer may cycle through a sequence of positions in response to alternating between the second force and a third force. The sequence includes a predetermined position configured to actuate the switch, thereby communicating the first force to the operator to actuate the tool.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: July 15, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Arin Basmajian, Brad Swenson, John R. Whitsitt
  • Publication number: 20140076542
    Abstract: A technique includes deploying an untethered object though a passageway of a string in a well; and sensing a property of an environment of the string, an electromagnetic coupling or a pressure as the object is being communicated through the passageway. The technique includes selectively autonomously operating the untethered object in response to the sensing.
    Type: Application
    Filed: June 13, 2013
    Publication date: March 20, 2014
    Inventors: John R. Whitsitt, John A. Booker, Thomas Daniel MacDougall, Gary L. Rytlewski
  • Publication number: 20130240212
    Abstract: A tool that is usable in a well and may include an operator, a switch, a resilient device and an indexer. The switch may be configured to selectively communicate a first force to the operator, thereby actuating the tool. The resilient device may exert a second force. The indexer may cycle through a sequence of positions in response to alternating between the second force and a third force. The sequence includes a predetermined position configured to actuate the switch, thereby communicating the first force to the operator to actuate the tool.
    Type: Application
    Filed: September 12, 2012
    Publication date: September 19, 2013
    Inventors: Arin Basmajian, Brad Swenson, John R. Whitsitt
  • Patent number: 8499843
    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: Grant
    Filed: February 22, 2010
    Date of Patent: August 6, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: Dinesh R. Patel, Y. Gill Hillsman, III, Herve Ohmer, Stephane Hiron, Philippe Gambier, Jonathan K. C. Whitehead, Randolph J. Sheffield, Rodney J. Wetzel, John R. Whitsitt, Thomas D. MacDougall, Nitin Y. Vaidya, James D. Hendrickson, John E. Edwards, Donald W. Ross, Rashmi B. Bhavsar
  • Publication number: 20130020097
    Abstract: A method of wireless communication with a downhole assembly in absence of pressure pulse or hard wired communications. Tools and techniques for achieving such wireless communications are directed fluid-flow communication which may be utilized in circumstances where a completions assembly is open to the well in a pressure sense. Notably, a trigger is included with detection equipment which may be utilized to detect fluid-flow generated by surface equipment. In certain embodiments, such equipment may even be mounted exterior of completions equipment tubing through which fluid-flow communication is directed. Thus, wireless downhole communication capacity may even be provided without the need for obstructing tubing with such detection equipment.
    Type: Application
    Filed: July 21, 2011
    Publication date: January 24, 2013
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: ANTHONY F. VENERUSO, JOHN R. WHITSITT, GARY M. ODDIE, STEFAN I. MOISE
  • Patent number: 8220542
    Abstract: A technique is provided to facilitate use of a service tool at a downhole location. The service tool has different operational configurations that can be selected and used without moving the service string.
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: July 17, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: John R. Whitsitt, Jason Keith Jonas, Gary L. Rytlewski, Dinesh Patel
  • Publication number: 20120018170
    Abstract: A tool that is usable in a well and may include an operator, a switch, a resilient device and an indexer. The switch may be configured to selectively communicate a first force to the operator, thereby actuating the tool. The resilient device may exert a second force. The indexer may cycle through a sequence of positions in response to alternating between the second force and a third force. The sequence includes a predetermined position configured to actuate the switch, thereby communicating the first force to the operator to actuate the tool.
    Type: Application
    Filed: September 29, 2011
    Publication date: January 26, 2012
    Inventors: Arin Basmajian, Brad Swenson, John R. Whitsitt
  • Publication number: 20120012312
    Abstract: A technique is provided to facilitate use of a service tool at a downhole location. The service tool has different operational configurations that can be selected and used without moving the service string.
    Type: Application
    Filed: September 28, 2011
    Publication date: January 19, 2012
    Inventors: John R. Whitsitt, Jason K. Jonas, Gary L. Rytlewski, Dinesh R. Patel
  • Patent number: 8056628
    Abstract: A technique is provided to facilitate use of a service tool at a downhole location. The service tool has different operational configurations that can be selected and used without moving the service string.
    Type: Grant
    Filed: January 24, 2007
    Date of Patent: November 15, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: John R. Whitsitt, Jason K. Jonas, Gary L. Rytlewski, Dinesh R. Patel
  • Patent number: 8056643
    Abstract: A tool that is usable in a well and may include an operator, a switch, a resilient device and an indexer. The switch may be configured to selectively communicate a first force to the operator, thereby actuating the tool. The resilient device may exert a second force. The indexer may cycle through a sequence of positions in response to alternating between the second force and a third force. The sequence includes a predetermined position configured to actuate the switch, thereby communicating the first force to the operator to actuate the tool.
    Type: Grant
    Filed: March 26, 2008
    Date of Patent: November 15, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: Arin Basmajian, Brad Swenson, John R. Whitsitt
  • Patent number: 7918276
    Abstract: A technique is provided for forming a gravel pack at a well zone. A completion assembly is positioned in a wellbore and cooperates with a service tool engaging the completion assembly. The completion assembly comprises a completion assembly central bore. A return is located radially outward of the central bore at a specific well zone or zones and comprises a flow path for returning a carrier fluid. The location of the return allows flow of the returning carrier fluid to remain outside of the completion assembly central bore at a specific well zone or zones.
    Type: Grant
    Filed: June 20, 2007
    Date of Patent: April 5, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: Thibaut Guignard, John R. Whitsitt
  • Patent number: 7753121
    Abstract: An assembly that is usable with a well includes a base pipe, a screen and at least one perforating charge. The base pipe includes at least one radial port to communicate well fluid, and the base pipe has an outer surface. The screen is mounted to the base pipe and is adapted to at least partially surround the base pipe. The radial port(s) of the base pipe are covered by the screen. The perforating charge(s) are mounted to the outer surface of the base pipe.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: July 13, 2010
    Assignee: Schlumberger Technology Corporation
    Inventors: John R. Whitsitt, Vladimir Vaynshteyn, Steven W. Henderson