摘要
无论高分辨率地震勘探,还是高精度、高密度地震勘探,都要求野外资料采集环节接收到宽频带的地震信号。在资料采集过程中,检波器类型和信号传输方式对地震资料的品质影响很大,它直接关系到地震勘探的成效。本文从高精度地震勘探的需求出发,通过地震信号的特征和传输方式、数字检波器的性能、地震仪器记录特点及野外试验资料的综合分析,阐述了检波器与地震仪器记录方式之间的匹配关系,给出了涡流数字检波器对中高频弱小地震信号的良好记录效果,指出了在高密度地震勘探中,采用涡流数字检波器接收宽频地震信号是一个较好的选择。
Whether high-resolution seismic exploration or high-precision, high-density seismic exploration requires broad- band seismic signals in seismic acquisition. Type of detector and signal transmission style has a great effect on seis- mic data quality, and related to the effectiveness of high-density seismic exploration directly. Starting with the de- mand of high density seismic exploration, through a comprehensive analysis of seismic signal characteristics, signal transmission style, digital detector performance, record characteristics of seismic instruments and field test, this pa- per elaborates the matching relationship between the detector and seismic instruments, concludes that eddy current digital has good record effect for weak seismic signals in high-frequency, and points out that using eddy current dig- ital detector in high-density seismic exploration for receiving broadband seismic signals is an excellent choice.
出处
《物探装备》
2013年第4期232-236,共5页
Equipment for Geophysical Prospecting
关键词
高密度地震
涡流检波器
数字检波器
高分辨率
宽频信号
high density seismic, eddy geophone, digital geophone, high resolution, broadband signal
