Patents by Inventor Robert A. Parrott
Robert A. Parrott 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: 10400557Abstract: An apparatus includes a string that extends into a well and a tool that is disposed in the string. The tool is adapted to form a seat to catch an object communicated to the tool via a passageway of the string in response to the tool being perforated.Type: GrantFiled: June 30, 2016Date of Patent: September 3, 2019Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Michael J. Bertoja, Robert A. Parrott, Bruno Lecerf, Vitaliy Timoshenko, Sergey Balakin, Elena Tarasova, Gary Rytlewski, Billy Anthony
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Patent number: 10138706Abstract: A technique includes running a seat assembly on a conveyance line into a tubing string, which has previously been installed in a well. The seat assembly includes a seat, which is adapted to receive an untethered object. The technique includes attaching the seat assembly to the string at a location downhole in the well; receiving the object to create a fluid barrier; and diverting fluid using the fluid barrier.Type: GrantFiled: May 13, 2015Date of Patent: November 27, 2018Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Jason Baihly, Michael Bertoja, Robert A. Parrott, Bruno Lecerf, Don Aldridge
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Patent number: 9546534Abstract: A technique that is usable with a well includes communicating a stabilized treatment slurry downhole into the well and dehydrating a portion of the slurry to form a barrier in the well.Type: GrantFiled: August 15, 2013Date of Patent: January 17, 2017Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Bruno Lecerf, Dmitry Potapenko, Elena Tarasova, Robert A. Parrott, Michael Bertoja
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Publication number: 20160312588Abstract: An apparatus includes a string that extends into a well and a tool that is disposed in the string. The tool is adapted to form a seat to catch an object communicated to the tool via a passageway of the string in response to the tool being perforated.Type: ApplicationFiled: June 30, 2016Publication date: October 27, 2016Inventors: Michael J. Bertoja, Robert A. Parrott, Bruno Lecerf, Vitaliy Timoshenko, Sergey Balakin, Elena Tarasova, Gary Rytlewski, Billy Anthony
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Patent number: 9382790Abstract: An apparatus includes a string that extends into a well and a tool that is disposed in the string. The tool is adapted to form a seat to catch an object communicated to the tool via a passageway of the string in response to the tool being perforated.Type: GrantFiled: August 3, 2011Date of Patent: July 5, 2016Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Michael J. Bertoja, Robert A. Parrott, Bruno Lecerf, Vitaliy Timoshenko, Sergey Balakin, Elena Tarasova, Gary Rytlewski, Billy Anthony
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Publication number: 20150247378Abstract: A technique includes running a seat assembly on a conveyance line into a tubing string, which has previously been installed in a well. The seat assembly includes a seat, which is adapted to receive an untethered object. The technique includes attaching the seat assembly to the string at a location downhole in the well; receiving the object to create a fluid barrier; and diverting fluid using the fluid barrier.Type: ApplicationFiled: May 13, 2015Publication date: September 3, 2015Inventors: Jason Baihly, Michael Bertoja, Robert A. Parrott, Bruno Lecerf, Don Aldridge
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Patent number: 9033041Abstract: A technique includes running a seat assembly on a conveyance line into a tubing string, which has previously been installed in a well. The seat assembly includes a seat, which is adapted to receive an untethered object. The technique includes attaching the seat assembly to the string at a location downhole in the well; receiving the object to create a fluid barrier; and diverting fluid using the fluid barrier.Type: GrantFiled: September 13, 2011Date of Patent: May 19, 2015Assignee: Schlumberger Technology CorporationInventors: Jason Baihly, Michael J. Bertoja, Robert A. Parrott, Bruno Lecerf, Don Aldridge
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Publication number: 20150047838Abstract: A technique that is usable with a well includes communicating a stabilized treatment slurry downhole into the well and dehydrating a portion of the slurry to form a barrier in the well.Type: ApplicationFiled: August 15, 2013Publication date: February 19, 2015Applicant: Schlumberger Technology CorporationInventors: Bruno Lecerf, Dmitry Potapenko, Elena Tarasova, Robert A. Parrott, Michael Bertoja
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Patent number: 8944171Abstract: A technique includes deploying a string that includes a seat assembly in a well; and running a shifting tool in a passageway of the string. The shifting tool shifts the seat assembly to cause the seat assembly to transition between a first state in which the seat assembly forms a seat that is adapted to allow an untethered object communicated in the passageway of the string to pass through the seat assembly to a second state in which the seat assembly is adapted to catch the object to form a fluid barrier in the string. The fluid barrier is used to divert fluid in the tubing string to perform, for example, a stimulation operation.Type: GrantFiled: August 3, 2011Date of Patent: February 3, 2015Assignee: Schlumberger Technology CorporationInventors: Robert A. Parrott, Bruno Lecerf, Sergey Vladimirovich Solovyov, Mikhail Petrovich Gusev, Ilya Anatolievich Pavlov, Jason Baihly, Michael Bertoja
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Publication number: 20130340599Abstract: A perforating gun of unique port and port plug architecture. The gun may include ports with separate guide channel and engagement regions for receiving a port plug. Once more, the engagement region may be offset from the central axis of the guide channel and overall port. Thus, the engagement region of the port as well as the matching engaging mechanism of the port plug may be out of the direct line of fire when a perforating application takes place. The same may be true of a seal for the port plug. Therefore, achieving adequate engagement and sealing of the port with such plugs may be more effective, for example, in spite of the guide channel and other portions of the gun carrier beginning to exhibit post-perforation bulging.Type: ApplicationFiled: June 13, 2013Publication date: December 26, 2013Inventors: Robert A. Parrott, Pavel Byndyu, Michael J. Bertoja
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Patent number: 8439114Abstract: The present invention provides an apparatus and method of orienting perforating gun strings conveyed on a tool string. One embodiment of the present invention provides an orienting weight provided in a portion of the perforating device, such as the shaped charge, the loading tube or the gun housing. An adapter is provided intermediate the tool string that facilitates conveyance of the gun string downhole. Additionally, the adapter enables the gun string to rotate independent of the tool string.Type: GrantFiled: June 22, 2006Date of Patent: May 14, 2013Assignee: Schlumberger Technology CorporationInventors: Robert A. Parrott, David Mills, Cynthia L. Hickson, Jerry D. Campbell
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Publication number: 20130062063Abstract: A technique includes running a seat assembly on a conveyance line into a tubing string, which has previously been installed in a well. The seat assembly includes a seat, which is adapted to receive an untethered object. The technique includes attaching the seat assembly to the string at a location downhole in the well; receiving the object to create a fluid barrier; and diverting fluid using the fluid barrier.Type: ApplicationFiled: September 13, 2011Publication date: March 14, 2013Applicant: Schlumberger Technology CorporationInventors: Jason Baihly, Michael J. Bertoja, Robert A. Parrott, Bruno Lecerf, Don Aldridge
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Publication number: 20130000926Abstract: A technique includes deploying a string that includes a seat assembly in a well; and running a shifting tool in a passageway of the string. The shifting tool shifts the seat assembly to cause the seat assembly to transition between a first state in which the seat assembly forms a seat that is adapted to allow an untethered object communicated in the passageway of the string to pass through the seat assembly to a second state in which the seat assembly is adapted to catch the object to form a fluid barrier in the string. The fluid barrier is used to divert fluid in the tubing string to perform, for example, a stimulation operation.Type: ApplicationFiled: August 3, 2011Publication date: January 3, 2013Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Robert A. Parrott, Bruno Lecerf, Sergey Solovyov, Mikhail Petrovich Gusev, IIya Anatolievich Pavlov, Jason Baihly, Michael Bertoja
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Publication number: 20120168163Abstract: An apparatus includes a string that extends into a well and a tool that is disposed in the string. The tool is adapted to form a seat to catch an object communicated to the tool via a passageway of the string in response to the tool being perforated.Type: ApplicationFiled: August 3, 2011Publication date: July 5, 2012Inventors: Michael J. Bertoja, Robert A. Parrott, Bruno Lecerf, Vitaliy Timoshenko, Sergey Balakin, Elena Tarasova, Gary Rytlewski, Billy Anthony
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Publication number: 20080264639Abstract: The present invention provides an apparatus and method of orienting perforating gun strings conveyed on a tool string. One embodiment of the present invention provides an orienting weight provided in a portion of the perforating device, such as the shaped charge, the loading tube or the gun housing. An adapter is provided intermediate the tool string that facilitates conveyance of the gun string downhole. Additionally, the adapter enables the gun string to rotate independent of the tool string.Type: ApplicationFiled: June 22, 2006Publication date: October 30, 2008Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Robert A. Parrott, David Mills, Cynthia L. Hickson, Jerry D. Campbell
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Patent number: 7213655Abstract: A hands-free connection system is provided for coupling downhole tools for use in well operations. The connection system includes two downhole tools connectable together in threaded engagement. The connection system further includes a compressible locking sleeve positioned between the coupled downhole tools for maintaining the tools in threaded engagement and in a predetermined alignment for deployment downhole.Type: GrantFiled: March 24, 2004Date of Patent: May 8, 2007Assignee: Schlumberger Technology CorporationInventor: Robert A. Parrott
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Patent number: 7159657Abstract: The loading tube comprises cups forming cup cavities for enclosing an explosive charge within each of the cups. The loading tube has ridges and valleys providing longitudinal and lateral strength to the loading tube. The loading tube is constructed of a formed material such as paper pulp, high-density polystyrene, plastic or sheet metal.Type: GrantFiled: March 24, 2004Date of Patent: January 9, 2007Assignee: Schlumberger Technology CorporationInventors: Wanchai Ratanasirigulchia, Wenbo Yang, Cynthia L. Hickson, Robert A. Parrott
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Patent number: 7114564Abstract: The present invention provides an apparatus and method of orienting perforating gun strings conveyed on a tool string. One embodiment of the present invention provides an orienting weight provided in a portion of the perforating device, such as the shaped charge, the loading tube or the gun housing. An adapter is provided intermediate the tool string that facilitates conveyance of the gun string downhole. Additionally, the adapter enables the gun string to rotate independent of the tool string.Type: GrantFiled: May 9, 2003Date of Patent: October 3, 2006Assignee: Schlumberger Technology CorporationInventors: Robert A. Parrott, David Mills, Cynthia L. Hickson, Jerry D. Campbell
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Patent number: 7000699Abstract: The present invention provides an apparatus and method of orienting perforating gun strings. One embodiment of the present invention provides an orienting weight provided in a portion of the perforating device, such as the shaped charge, the loading tube or the gun housing. Additional weight may be provided as separate components and attached to the gun components.Type: GrantFiled: April 27, 2002Date of Patent: February 21, 2006Assignee: Schlumberger Technology CorporationInventors: Wenbo Yang, Alfredo Fayard, Robert A. Parrott, Klaus B. Huber, Jeffrey P. Meisenhelder, A. Glen Edwards, Steven W. Henderson, Joseph B. Edone, Wanchai Ratanasirigulchai, Manuel Gonzalez
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Patent number: 6817598Abstract: The present invention provides a gun brake system adapted to slow the descent of a tool string in a well. In one embodiment, the brake system comprises a brake installed within the well and having a snug fitting restriction and one or more fluid channels extending along a portion thereof. The brake system further provides means for maintaining the fluid volume substantially constant within the production tubing to which the gun brake is installed.Type: GrantFiled: October 25, 2002Date of Patent: November 16, 2004Assignee: Schlumberger Technology CorporationInventors: Robert A. Parrott, Stephen F. Lloyd, Gerhard Schoonderbeek, Atilla Kaplan, Henrik Praesius, Kuo-Chiang Chen