中国石油大学学报（自然科学版）2024，Vol.48Issue(1)：150-158,9.DOI:10.3969/j.issn.1673-5005.2024.01.016
用于油气井RFID扶正器激活的阅读器共形天线设计
Design on conformal antenna of reader for RFID centralizer activation in oil and gas wells
摘要
Abstract
Based on the characteristics of the downhole environment of oil and gas wells,a dipole antenna was designed and analyzed for radio frequency identification(RFID)conformal to the downhole pipeline to realize the remote control of downhole centralizer and to correct the defects such as excessive attenuation and poor radiation performance of the RFID reader antenna.Based on the fundamental theory of antenna design,the antenna structure was designed as the inverted"U"shape by using the antenna bending technique to achieve the conformal shape with the casing.The antenna parameters were optimized through the simulation frequency sweep analysis,and the influence of the main structure of antenna on the performance was analyzed.The results show that,the final central frequency of the antenna is 860 MHz,the antenna input port reflection coefficient at this fre-quency is-21.05 dB,the gain is 2.2 dB,and the antenna dimension is 11 mm×148.44 mm.The performance of the antenna meets the design requirements,and it can be applied to the wireless control of downhole tools such as casing centralizer.关键词
油气井/扶正器/射频识别/共形偶极子天线/增益Key words
oil and gas wells/centralizer/radio frequency identification/conformal dipole antenna/gain分类
能源科技引用本文复制引用
尹宜勇,朱文佳,曲从锋,王岩,王立琰,龚振,崔明轩,王国强..用于油气井RFID扶正器激活的阅读器共形天线设计[J].中国石油大学学报（自然科学版）,2024,48(1):150-158,9.基金项目
国家自然科学基金面上项目(52175126) （52175126）
中国石油科技创新基金项目(2022DQ02-0302,2019D-5007-0306) （2022DQ02-0302,2019D-5007-0306）
