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).
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Patent number: 11111757Abstract: 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: GrantFiled: March 16, 2018Date of Patent: September 7, 2021Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Bryan Stamm, Michael Dean Langlais, John R. Whitsitt
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Publication number: 20200011155Abstract: 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: ApplicationFiled: March 16, 2018Publication date: January 9, 2020Inventors: Bryan Stamm, Michael Dean Langlais, John R. Whitsitt
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Patent number: 10233732Abstract: 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: GrantFiled: July 29, 2016Date of Patent: March 19, 2019Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Mohamed Aly Sadek, Bryan Stamm, Stephen Dyer, John R. Whitsitt, Oguzhan Guven, Parvesh Singh, Srinivas Poluchalla
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Publication number: 20180291700Abstract: 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: ApplicationFiled: April 11, 2017Publication date: October 11, 2018Inventors: Huilin Tu, Kyle Tse, John R. Whitsitt, Gregoire Jacob
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Publication number: 20180030811Abstract: 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: ApplicationFiled: July 29, 2016Publication date: February 1, 2018Inventors: Mohamed Aly Sadek, Bryan Stamm, Stephen Dyer, John R. Whitsitt, Oguzhan Guven, Parvesh Singh, Srinivas Poluchalla
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Patent number: 9650851Abstract: 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: GrantFiled: June 13, 2013Date of Patent: May 16, 2017Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: John R. Whitsitt, John A. Booker, Thomas Daniel MacDougall, Gary L. Rytlewski
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Publication number: 20150361761Abstract: 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: ApplicationFiled: June 13, 2014Publication date: December 17, 2015Inventors: Theodore Lafferty, John R. Whitsitt, Matthew J. Miller
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Publication number: 20150285023Abstract: 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: ApplicationFiled: October 25, 2013Publication date: October 8, 2015Inventors: Matthew J. Miller, John R. Whitsitt, J. Ernest Brown
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Patent number: 8776890Abstract: 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: GrantFiled: September 12, 2012Date of Patent: July 15, 2014Assignee: Schlumberger Technology CorporationInventors: Arin Basmajian, Brad Swenson, John R. Whitsitt
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Publication number: 20140076542Abstract: 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: ApplicationFiled: June 13, 2013Publication date: March 20, 2014Inventors: John R. Whitsitt, John A. Booker, Thomas Daniel MacDougall, Gary L. Rytlewski
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Publication number: 20130240212Abstract: 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: ApplicationFiled: September 12, 2012Publication date: September 19, 2013Inventors: Arin Basmajian, Brad Swenson, John R. Whitsitt
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Patent number: 8499843Abstract: 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: GrantFiled: February 22, 2010Date of Patent: August 6, 2013Assignee: Schlumberger Technology CorporationInventors: 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
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Publication number: 20130020097Abstract: 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: ApplicationFiled: July 21, 2011Publication date: January 24, 2013Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: ANTHONY F. VENERUSO, JOHN R. WHITSITT, GARY M. ODDIE, STEFAN I. MOISE
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Patent number: 8220542Abstract: 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: GrantFiled: September 28, 2011Date of Patent: July 17, 2012Assignee: Schlumberger Technology CorporationInventors: John R. Whitsitt, Jason Keith Jonas, Gary L. Rytlewski, Dinesh Patel
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Publication number: 20120018170Abstract: 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: ApplicationFiled: September 29, 2011Publication date: January 26, 2012Inventors: Arin Basmajian, Brad Swenson, John R. Whitsitt
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Publication number: 20120012312Abstract: 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: ApplicationFiled: September 28, 2011Publication date: January 19, 2012Inventors: John R. Whitsitt, Jason K. Jonas, Gary L. Rytlewski, Dinesh R. Patel
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Patent number: 8056628Abstract: 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: GrantFiled: January 24, 2007Date of Patent: November 15, 2011Assignee: Schlumberger Technology CorporationInventors: John R. Whitsitt, Jason K. Jonas, Gary L. Rytlewski, Dinesh R. Patel
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Patent number: 8056643Abstract: 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: GrantFiled: March 26, 2008Date of Patent: November 15, 2011Assignee: Schlumberger Technology CorporationInventors: Arin Basmajian, Brad Swenson, John R. Whitsitt
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Patent number: 7918276Abstract: 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: GrantFiled: June 20, 2007Date of Patent: April 5, 2011Assignee: Schlumberger Technology CorporationInventors: Thibaut Guignard, John R. Whitsitt
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Patent number: 7753121Abstract: 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: GrantFiled: April 28, 2006Date of Patent: July 13, 2010Assignee: Schlumberger Technology CorporationInventors: John R. Whitsitt, Vladimir Vaynshteyn, Steven W. Henderson