摘要
与模拟检波器相比,数字检波器具有频带宽、动态范围大、灵敏度高的特点,但每道单个检波器接收造成的环境噪声大。分析、对比大庆油田西部斜坡区的模拟、数字检波器接收资料的信噪比和频率特征认为:采用归一化频谱可以得到某一频率的信噪比值;采用不同的噪声压制方法和反褶积参数进行平行处理能够使不同频段的信号充分、有效地成像;数字检波器接收的地震记录的成像效果可有效应用于松辽盆地西部斜坡区的勘探部署。
Comparing with the analog geophone, the digital geophone is characterized by wide frequency-band, wide dynamic range and high sensitivity, but the environmental noise is rather higher due to the receiving by the single geophone for the individual trace. The analyses and contrast of the signal-to-noise ratio and frequency charac- teristics for the data received by above two geophones in West Slope of Daqing Oilfield show that the ratio value of a certain frequency can be obtained by the normalized spectrum; the signals of different frequency bands can be thoroughly and effectively imaged by the parallel processing with the help of different noise suppression methods and deconvolution parameters ; the imaged effects of the seismograms received by the digital geophones can be fully and availably applied in the exploration arrangement of West Slope of Songliao Basin.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2013年第4期142-146,共5页
Petroleum Geology & Oilfield Development in Daqing
关键词
数字检波器
反褶积
随机噪声
信噪比
频率
digital geophone
deconvolution
random noise attenuation
signal to noise ratio
frequency
