公开(公告)号：US20180225485A1

公开(公告)日：2018-08-09

申请号：US15747421

申请日：2016-07-27

申请人： Weatherford Technology Holdings, LLC

发明人： John Ownby ,  Matthew Knight ,  Richard Dalzell ,  Rupa Sharma ,  Eric R. Evans ,  Jobby T. Jacob

IPC分类号： G06K7/10 ,  E21B47/12 ,  E21B23/04 ,  G06K19/07 ,  G06K19/077

CPC分类号： G06K7/10158 ,  E21B23/00 ,  E21B23/04 ,  E21B47/122 ,  G01V15/00 ,  G06K19/0702 ,  G06K19/0708 ,  G06K19/07749

摘要： 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.

公开(公告)号：US10915714B2

公开(公告)日：2021-02-09

申请号：US16729979

申请日：2019-12-30

申请人： Weatherford Technology Holdings, LLC

发明人： John Ownby ,  Matthew Knight ,  Richard Dalzell ,  Rupa Sharma ,  Eric R. Evans ,  Jobby T. Jacob

IPC分类号： G06K7/10 ,  E21B47/12 ,  G06K19/07 ,  E21B23/00 ,  G06K19/077 ,  E21B23/04 ,  G01V15/00 ,  E21B47/13

摘要： 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.

公开(公告)号：US10586083B2

公开(公告)日：2020-03-10

申请号：US15747421

申请日：2016-07-27

申请人： Weatherford Technology Holdings, LLC

发明人： John Ownby ,  Matthew Knight ,  Richard Dalzell ,  Rupa Sharma ,  Eric R. Evans ,  Jobby T. Jacob

IPC分类号： G06K7/10 ,  E21B47/12 ,  G06K19/07 ,  G01V15/00 ,  G06K19/077 ,  E21B23/04

摘要： 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.