Patents by Inventor Eric R. Evans
Eric R. Evans 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: 11686182Abstract: A running tool sets and cements a liner in a borehole. While the tool's bypass section is closed, a plug deployed to the tool diverts hydraulic pressure to set a liner hanger in the borehole. The setting plug is unseated, and the bypass section is switched opened by deploying another plug to an opening seat and shifting a control sleeve open relative to a bypass port. While the tool's packoff remains sealed in the hanger, cement pumped out the bypass port is bullheaded into a lap of the liner and borehole. When cementing is complete, the bypass section is switched closed by deploying another plug to a closing seat and shifting the control sleeve closed relative to the bypass port. The bypass section is then placed in a flow-through condition where fluid communication is reestablished through the tool to the liner by allowing fluid to flow past the plugs in the tool.Type: GrantFiled: October 19, 2021Date of Patent: June 27, 2023Assignee: WEATHERFORD TECHNOLOGY HOLDINGS, LLCInventors: Zachary S. Trine, Nicholas W. McFarlin, Eric R. Evans, Joshua V. Symms
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Publication number: 20230119630Abstract: A running tool sets and cements a liner in a borehole. While the tool’s bypass section is closed, a plug deployed to the tool diverts hydraulic pressure to set a liner hanger in the borehole. The setting plug is unseated, and the bypass section is switched opened by deploying another plug to an opening seat and shifting a control sleeve open relative to a bypass port. While the tool’s packoff remains sealed in the hanger, cement pumped out the bypass port is bullheaded into a lap of the liner and borehole. When cementing is complete, the bypass section is switched closed by deploying another plug to a closing seat and shifting the control sleeve closed relative to the bypass port. The bypass section is then placed in a flow-through condition where fluid communication is reestablished through the tool to the liner by allowing fluid to flow past the plugs in the tool.Type: ApplicationFiled: October 19, 2021Publication date: April 20, 2023Inventors: Zachary S. Trine, Nicholas W. McFarlin, Eric R. Evans, Joshua V. Symms
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Patent number: 11306562Abstract: A stage tool used in a wellbore has a housing consisting of two sub-housings that couple together. A first sleeve is movably disposed in the housing bore and is held closed with a temporary connection relative to a side port of the housing. The first sleeve has a first seat of millable material. A second sleeve is also movably disposed in the housing bore and is held opened with a temporary connection relative to the side port. The second sleeve has a second seat of millable material. An opening plug is landed on the first seat so pressure can break the connection and shift the first sleeve open relative to the side port. After pumping cement out of the tool, a closing plug is pumped to the second seat so pressure can break the connection and shift the second sleeve closed relative to the side port. The first sleeve includes a bypass that allows for fluid to pass beyond the seated plug.Type: GrantFiled: April 28, 2021Date of Patent: April 19, 2022Assignee: Weatherford Technology Holdings, LLCInventors: Richard L. Giroux, Eric R. Evans, Joshua V. Symms, Yidara Wolf
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Patent number: 10915714Abstract: A first RFID tag arrangement for actuating a downhole tool includes a non-metallic housing enclosing a passive RFID tag, power source, pulsed oscillator circuit, and energizer coil. The pulsed oscillator circuit drives the energizer coil to stimulate and activate the tag such that it can be read by an external reader. A second RFID tag arrangement includes a non-metallic housing enclosing a power source, a transmission circuit, and a transmitter coil. The transmission circuit can drive the transmitter coil to transmit a payload stored in the transmission circuit such that the payload is delivered to an external reader. A method of actuating a downhole tool includes placing the tool's RFID tag reader in listen only mode, introducing into the wellbore an active RFID tag that transmits its payload to the reader, and optionally configuring the reader to reprogram the tag when it receives the payload therefrom.Type: GrantFiled: December 30, 2019Date of Patent: February 9, 2021Assignee: Weatherford Technology Holdings, LLCInventors: John Ownby, Matthew Knight, Richard Dalzell, Rupa Sharma, Eric R. Evans, Jobby T. Jacob
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Publication number: 20200134271Abstract: A first RFID tag arrangement for actuating a downhole tool includes a non-metallic housing enclosing a passive RFID tag, power source, pulsed oscillator circuit, and energizer coil. The pulsed oscillator circuit drives the energizer coil to stimulate and activate the tag such that it can be read by an external reader. A second RFID tag arrangement includes a non-metallic housing enclosing a power source, a transmission circuit, and a transmitter coil. The transmission circuit can drive the transmitter coil to transmit a payload stored in the transmission circuit such that the payload is delivered to an external reader. A method of actuating a downhole tool includes placing the tool's RFID tag reader in listen only mode, introducing into the wellbore an active RFID tag that transmits its payload to the reader, and optionally configuring the reader to reprogram the tag when it receives the payload therefrom.Type: ApplicationFiled: December 30, 2019Publication date: April 30, 2020Inventors: John Ownby, Matthew Knight, Richard Dalzell, Rupa Sharma, Eric R. Evans, Jobby T. Jacob
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Patent number: 10586083Abstract: A first RFID tag arrangement for actuating a downhole tool includes a non-metallic housing enclosing a passive RFID tag, power source, pulsed oscillator circuit, and energizer coil. The pulsed oscillator circuit drives the energizer coil to stimulate and activate the tag such that it can be read by an external reader. A second RFID tag arrangement includes a non-metallic housing enclosing a power source, a transmission circuit, and a transmitter coil. The transmission circuit can drive the transmitter coil to transmit a payload stored in the transmission circuit such that the payload is delivered to an external reader. A method of actuating a downhole tool includes placing the tool's RFID tag reader in listen only mode, introducing into the wellbore an active RFID tag that transmits its payload to the reader, and optionally configuring the reader to reprogram the tag when it receives the payload therefrom.Type: GrantFiled: July 27, 2016Date of Patent: March 10, 2020Assignee: Weatherford Technology Holdings, LLCInventors: John Ownby, Matthew Knight, Richard Dalzell, Rupa Sharma, Eric R. Evans, Jobby T. Jacob
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Patent number: 10392898Abstract: A crossover tool for use in a wellbore includes: a tubular housing having a bypass port; a mandrel having a bore therethrough and a mandrel port in fluid communication with the mandrel bore, the mandrel movable relative to the tubular housing between a first position where the mandrel port is isolated from the bypass port and a second position where the mandrel port is aligned with the bypass port; and an actuator operable to move the mandrel between the first position and the second position. The actuator includes a first piston connected to the mandrel and a second piston operable in response to the first piston.Type: GrantFiled: June 16, 2016Date of Patent: August 27, 2019Assignee: WEATHERFORD TECHNOLOGY HOLDINGS, LLCInventors: Richard L. Giroux, Eric R. Evans
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Patent number: 10198606Abstract: A system for operating a downhole tool includes a tag carrier; a RFID tag coupled with the tag carrier; and a control sub having a bore extending therethrough, the control sub comprising: an antenna located adjacent to the bore; and a stop for catching the tag carrier, wherein: the radio frequency identification tag is coupled with the tag carrier in relation to the stop and the antenna such that the radio frequency identification tag is aligned with the antenna when the tag carrier is caught in the stop, and the stop is operable to allow passage of the tag carrier through the stop after the tag carrier is caught by the stop.Type: GrantFiled: January 26, 2018Date of Patent: February 5, 2019Assignee: WEATHERFORD TECHNOLOGY HOLDINGS, LLCInventors: John Fielding Ownby, Jobby T. Jacob, Richard Lee Giroux, Matthew David Knight, Richard Alastair Howard Dalzell, Jake M. Boudreaux, Robert B. Marcel, Jr., Rupa Sharma, Larry A. Kendziora, Eric R. Evans, Rajesh D. Patel
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Publication number: 20180225485Abstract: A first RFID tag arrangement for actuating a downhole tool includes a non-metallic housing enclosing a passive RFID tag, power source, pulsed oscillator circuit, and energizer coil. The pulsed oscillator circuit drives the energizer coil to stimulate and activate the tag such that it can be read by an external reader. A second RFID tag arrangement includes a non-metallic housing enclosing a power source, a transmission circuit, and a transmitter coil. The transmission circuit can drive the transmitter coil to transmit a payload stored in the transmission circuit such that the payload is delivered to an external reader. A method of actuating a downhole tool includes placing the tool's RFID tag reader in listen only mode, introducing into the wellbore an active RFID tag that transmits its payload to the reader, and optionally configuring the reader to reprogram the tag when it receives the payload therefrom.Type: ApplicationFiled: July 27, 2016Publication date: August 9, 2018Inventors: John Ownby, Matthew Knight, Richard Dalzell, Rupa Sharma, Eric R. Evans, Jobby T. Jacob
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Publication number: 20180150660Abstract: A system for operating a downhole tool includes a tag carrier; a RFID tag coupled with the tag carrier; and a control sub having a bore extending therethrough, the control sub comprising: an antenna located adjacent to the bore; and a stop for catching the tag carrier, wherein: the radio frequency identification tag is coupled with the tag carrier in relation to the stop and the antenna such that the radio frequency identification tag is aligned with the antenna when the tag carrier is caught in the stop, and the stop is operable to allow passage of the tag carrier through the stop after the tag carrier is caught by the stop.Type: ApplicationFiled: January 26, 2018Publication date: May 31, 2018Inventors: John Fielding OWNBY, Jobby T. JACOB, Richard Lee GIROUX, Matthew David KNIGHT, Richard Alastair Howard DALZELL, Jake M. BOUDREAUX, Robert B. MARCEL, JR., Rupa SHARMA, Larry A. KENDZIORA, Eric R. EVANS, Rajesh D. PATEL
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Patent number: 9911016Abstract: A system for operating a downhole tool includes a tag carrier; a RFID tag coupled with the tag carrier; and a control sub having a bore extending therethrough, the control sub comprising: an antenna located adjacent to the bore; and a stop for catching the tag carrier, wherein: the radio frequency identification tag is coupled with the tag carrier in relation to the stop and the antenna such that the radio frequency identification tag is aligned with the antenna when the tag carrier is caught in the stop, and the stop is operable to allow passage of the tag carrier through the stop after the tag carrier is caught by the stop.Type: GrantFiled: May 12, 2016Date of Patent: March 6, 2018Assignee: Weatherford Technology Holdings, LLCInventors: John Fielding Ownby, Jobby T. Jacob, Richard Lee Giroux, Matthew David Knight, Richard Alastair Howard Dalzell, Jake M. Boudreaux, Robert B. Marcel, Jr., Rupa Sharma, Larry A. Kendziora, Eric R. Evans, Rajesh D. Patel
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Publication number: 20170362915Abstract: A crossover tool for use in a wellbore includes: a tubular housing having a bypass port; a mandrel having a bore therethrough and a mandrel port in fluid communication with the mandrel bore, the mandrel movable relative to the tubular housing between a first position where the mandrel port is isolated from the bypass port and a second position where the mandrel port is aligned with the bypass port; and an actuator operable to move the mandrel between the first position and the second position. The actuator includes a first piston connected to the mandrel and a second piston operable in response to the first piston.Type: ApplicationFiled: June 16, 2016Publication date: December 21, 2017Inventors: Richard L. GIROUX, Eric R. EVANS
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Publication number: 20160335464Abstract: A system for operating a downhole tool includes a tag carrier; a RFID tag coupled with the tag carrier; and a control sub having a bore extending therethrough, the control sub comprising: an antenna located adjacent to the bore; and a stop for catching the tag carrier, wherein: the radio frequency identification tag is coupled with the tag carrier in relation to the stop and the antenna such that the radio frequency identification tag is aligned with the antenna when the tag carrier is caught in the stop, and the stop is operable to allow passage of the tag carrier through the stop after the tag carrier is caught by the stop.Type: ApplicationFiled: May 12, 2016Publication date: November 17, 2016Inventors: John Fielding OWNBY, Jobby T. JACOB, Richard Lee GIROUX, Matthew David KNIGHT, Richard Alastair Howard DALZELL, Jake M. BOUDREAUX, Robert B. MARCEL, JR., Rupa SHARMA, Larry A. KENDZIORA, Eric R. EVANS, Rajesh D. PATEL
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Patent number: 4336667Abstract: A method of cultivating fruit bearing trees which involves the use of frame supported training wires, tapes or the like which extend row wise down either side of trees within a different row. Row wise extending members are provided so that a twin leader tree has each leader with oppositely and row wise directed supported laterals at preferably four levels. In addition each lateral has extending outwardly therefrom and supported by further row wise extending wires, tapes or the like fruiting branches from the laterals which by a combination of weaving over or under the same become progressively enmeshed therewith and thus are supported in a layer manner which will ensure an increased yield but at the same time facilitate the machine harvesting of any such fruit.Type: GrantFiled: August 26, 1980Date of Patent: June 29, 1982Inventor: Eric R. Evans
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Patent number: D280794Type: GrantFiled: June 17, 1983Date of Patent: October 1, 1985Assignee: Ebro Espalier Limited, Ebro OrchardsInventor: Eric R. Evans
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Patent number: D286259Type: GrantFiled: June 17, 1983Date of Patent: October 21, 1986Assignee: EBRO Espalier LimitedInventor: Eric R. Evans