Design of RFID-Based Low Frequency Tag in Intelligent Well

Abstract

In order to realize the data transmission requirements of intelligent wells, this paper analyzes the matching relationship between the radio frequency electronic tag and the antenna of the reader, and proposes a method of designing a downhole communication system using radio frequency identification technology (RFID). First of all, it is preferable to establish communication between the electronic tag and the reader in a suitable frequency band. Then, the reading function of the reader’s data and the transmission capacity of the two encapsulated electronic tags are theoretically analyzed, and the number of turns of the reader’s antenna and the radio frequency electronic tag is determined. Finally, through experimental verification, the temperature resistance and pressure resistance of the electronic tag are analyzed. The experimental results show that the radio frequency electronic tag can successfully realize the collection and transmission of data and information, and meet the needs of downhole information transmission.