Design of RFID-based sliding sleeve control system

doi:10.3969/j.issn.1672-7703.2017.02.014

Abstract

Abstract: In order to achieve unrestricted fracturing stages and consistent and intelligently controllable sliding sleeves in all stages, a sliding sleeve control system is designed on the basis of radio frequency identifcation (RFID) technology. When the RFID tag ball passes through the fracturing string, the stored data is sent to the downhole through the coupling between in-built antenna and reader antenna. The reader sends a command signal to the electronic control unit according to different settings after receiving the carrier signal. The electronic control unit drives the hollow-shaft motor to rotate, and the hollow-shaft motor realizes accurate commutation through the Hall signal, so that the openness and opening/closing of sliding sleeve is intelligently adjusted. An experiment was conducted on the bench to verify the reliability of the system.

Key words: antenna, hollow-shaft motor, openness, radio frequency identifcation (RFID), sliding sleeve

CLC Number:

TE834.2

Shen Zhiwei, Li Hongwei, Liu Bing, Liu Wei. Design of RFID-based sliding sleeve control system[J]. China Petroleum Exploration, 2017, 22(2): 116-120.

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