随钻中继式电磁波传输技术及应用研究  

Research on the Application of Relay Type Electromagnetic Wave Transmission Technology with Drilling

作　　者：赵龙[1] 刘西恩[1] 孙向阳[2] 张利伟 ZHAO Long;LIU Xien;SUN Xiangyang;ZHANG Liwei(China Oilfield Services Limited,Beijing 110049,China;University of Electronic Science and Technology of China,Chengdu 611731,China)

机构地区：[1]中海油田服务股份有限公司,北京110049 [2]电子科技大学,四川成都611731

出　　处：《电声技术》2024年第1期90-94,共5页Audio Engineering

基　　金：中国海洋石油集团有限公司科技专项(KJGG-2022-1402)。

摘　　要：针对随钻条件下无线电磁波传输技术信号衰减大、传播距离短、信号频率低以及传输速率慢的难题,文章设计了基于准横电磁波(Transverse Electromagnetic Wave,TEM)激励模式的随钻中继式电磁波传输技术。该技术以钻杆作为传输载体,将电磁波在井内的随钻传输模型类比同轴线传输模型,通过使用多组载波频率,在提高传输速率的同时,利用中继接力扩展传输距离。该技术已通过不同地层环境的现场验证,是井下数据传输未来发展的重要方向。Aiming at the problems of large signal attenuation,short propagation distance,low signal frequency and slow transmission rate of wireless electromagnetic wave transmission technology while drilling,this paper designs a relay electromagnetic wave transmission technology while drilling based on quasi-Transverse Electromagnetic Wave(TEM)excitation mode.In this technology,the drill pipe is used as the transmission carrier,and the electromagnetic wave transmission model while drilling in the well is compared with the coaxial transmission model.By using multiple carrier frequencies,the transmission rate is improved and the transmission distance is extended by using relay.This technology has passed the field verification in different formation environments,and it is an important direction for the future development of underground data transmission.

关 键 词：随钻测井 电磁传输 中继式 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术] TN9[电子电信—信息与通信工程]