单芯电缆高速数字信号传输技术在测井仪器的应用

Application of single core cable high speed digital signal transmission technology in logging instrument

本文在分析目前单芯电缆高速数字信号传输技术的基础上,提出增加数字遥传短节的方案,克服了七芯电缆模拟信号上传声波测井曲线失真度高的缺陷,从而降低数字声波测井仪开发成本。该方案有效提高现有国内CBL声波变密度测井仪器测井曲线质量,并得到现场试验验证。

Based on the analysis of the current single core cable high-speed digital signal transmission technology,this paper puts forward the scheme of adding digital remote transmission short link,It overcomes the defect of high distortion of acoustic logging curve uploaded by analog signal of seven core cable,so as to reduce the development cost of digital acoustic logging tool.This scheme can effectively improve the quality of CBL acoustic variable density logging tool,and it has been verified by field test.