摘要
EM套管天线遥测技术可克服传统EM遥测技术的局限性,为高地层电阻率、信号衰减和堵漏材料堵塞脉冲器问题提供了有效的解决途径。与传统EM遥测技术相比,EM套管天线技术可大幅度减少信号衰减,提高信噪比,显著增大EM遥测技术的作业深度,并拓宽其应用范围。现场应用结果表明,EM套管天线遥测技术有效解决了高电阻率地层传统EM遥测技术的信号衰减和堵漏材料堵塞脉冲器的问题,缩短了非生产时间,提高了钻井效率。鉴于目前的随钻地震技术由于信号衰减,也存在深度限制的问题,建议将EM套管天线遥测技术应用于随钻地震,从而有力推动随钻地震技术的工程化应用。
The EM casing antenna telemetry eliminate the limitations of conventional EM telemetry technology, providing an effective solution for high formation resistivity, signal attenuation and plugged pulse generator caused by plugging material. Compared with conventional EM telemetry, the EM casing antenna technology can significantly reduce signal attenuation and improve signal to noise ratio, thus extending the operation depth and broad- en the application range of EM telemetry. EM casing antenna telemetry could effectively address issue of signal attenuation of traditional EM telemetry in high resistivity formations and avoid plugged pulse generator, thus greatly reduce the non-productive time and improve the drilling efficiency. Given that the current seismic-while-drilling technology also has the application depth limit because of signal attenuation, the casing antenna technology applied in the seismic-while-drilling is proposed to effectively promote engineering applications of seismic-while-drilling.
出处
《石油机械》
2015年第5期36-39,共4页
China Petroleum Machinery
