摘要
提出了在石油钻杆中加套管构成同轴传输线并通过微波传输将井下信息传递到地面的方法,根据钻杆半径和套管内径选择了适于工作的微波频率,并分析了实际应用中钻杆与套管轴线偏离时可能存在的微波模式,并对这种方法的可行性进行了分析.
A method for transmitting down-hole signal through microwave propagation in air between drilling stem and its cover tube is proposed. The proper microwave frequency was analyzed theoretically according to radii of stem and cover tube. The possible high order modes of microwave were studied when drilling stem was off axial to cover tube. The feasibility of this method was investigated.
出处
《北京师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2012年第6期613-616,共4页
Journal of Beijing Normal University(Natural Science)
基金
西南石油大学"油气藏地质及开发工程"国家重点实验室"气体钻井电磁波衰减研究"开放课题资助
关键词
微波
同轴线
波导
石油钻井
microwave
coaxial line
waveguide
drilling stem
