摘要
作为地震数据接收环节的第一道门槛,地震检波器一直是获取高质量地震数据的关键,为此人们不断地追求性能更加完善的地震检波器。目前勘探市场应用的检波器种类繁多,就地震检波器输出信号的特征而言,可分为模拟地震检波器和数字检波器,而模拟检波器又可以分为多种类型。如何根据地震采集的要求,合理地选择和应用这2类检波器是非常重要的。利用实际资料,通过频谱分析、时频分析和CDP叠加处理方法,对2类检波器的响应能力进行了对比和分析,并对检波器的功能和适用性给予评价,以提高应用检波器的能力。通过研究认为,数字检波器是高分辨率地震勘探的首选检波器。
Seismic geophone is vital to obtain seismic data of high quality as it is the first gate in seismic acquisition.That is why people are seeking of geophones with better behaviors.There are many types of geophones available,which can be divided into analog and digital geophones by their characters of output signals.How to correctly choose these two kinds of geophones is very important in seismic acquisition.This paper investigated the behaviors and applicability of both analog geophones and digital geophones on real data using spectral analysis,time frequency analysis and CDP stack.It is concluded that digital geophone should be chosen for high resolution seismic survey if possible.
出处
《勘探地球物理进展》
2007年第2期96-99,共4页
Progress in Exploration Geophysics
关键词
检波器
动态范围
自然频率
分辨率
信噪比
geophone
dynamic range
natural frequency
resolution
signal to noise ratio
