地震勘探中的爆炸信号

TB (Time Break) signal in seismic exploration.

爆炸信号是地震勘探中的一个重要的标量,它标明整个采集系统的同步性,决定着地震记录的质量。为加强勘探工作者对爆炸信号的准确性的重视,本文介绍了爆炸信号记录方式的演变过程,分析了目前在使用高压爆炸机时存在的一些误区和误解,并提出了在野外施工中有关爆炸信号应注意的事项。

Indicating synchronism of the whole seismic data acquisition system, TB signal is one of the most important scalars, which impair seismic data recording quality. In order to catch people’s more attention to TB signal, this paper describes development of recording mode about TB signal in detail. Author of this paper points out some misunderstandings existed in seismic crew about high voltage blaster and shows some matters needing attention in the field operation.