类“DTMF”井下远距离有缆数据传输方法研究  

The Research of A Long- Distance Data Transmission Method Similar to “DTMF”

作　　者：吴秋来 高硕 刘勇[2] 朱红 

机构地区：[1]中石油渤海钻探油气井测试分公司,河北廊坊065007 [2]中石油华北油田第四采油厂,河北廊坊065007

出　　处：《通信技术》2015年第9期1023-1026,共4页Communications Technology

基　　金：国家科技重大专项(No.2011ZX05021-005)~~

摘　　要：通过对国内外井下单芯铠装测试仪器的通讯方式进行调研,结合现代电缆传输理论,研制了一种适用于油田井下远距离有缆数据通讯的编码方式—类"DTMF"方法。应用该数据传输方法可极大提高通讯的抗干扰能力,解决了现有有缆传输系统中的电缆适应性问题,不需进行电缆匹配就能适应任何单芯铠装电缆,并进行高速、高可靠性的井下远距离有缆数据传输,为井下数据通讯提出了新的思路。Based on the research of the well-testing instruments at home and abroad using the single-lead cable and the study of the cable transmission theory-＂ similar to DTMF＂ , a new coding scheme of downhole cable transmission for well-testing instrument is developed creatively. The instrument using this cod- ing scheme can be easily adapted to all kinds of single-lead cable without match debugging, and realize the transmission with incredible high speed and reliability. This method provides a way for the transmission of downhole instruments.

关 键 词：试井 单芯铠装电缆 数据通讯 编码方式 DTMF编码 

分 类 号：TN914.3[电子电信—通信与信息系统]