Active RFID tag arrangements for actuation of downhole equipment in well fluids

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...

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Bibliographic Details
Main Authors Ownby, John, Jacob, Jobby T, Evans, Eric R, Sharma, Rupa, Knight, Matthew, Dalzell, Richard
Format Patent
LanguageEnglish
Published 09.02.2021
Subjects
CALCULATING
COMPUTING
COUNTING
DETECTING MASSES OR OBJECTS
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
GEOPHYSICS
GRAVITATIONAL MEASUREMENTS
HANDLING RECORD CARRIERS
MEASURING
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
PHYSICS
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
TESTING
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Summary: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.
Bibliography:Application Number: US201916729979