【摘要】 针对压电检波器价格昂贵且存在不稳定性的问题,提出在同一测线(试验线)上同时布设常规检波器和压电检波器,根据两套数据的差异求得压电匹配滤波器,进而对常规检波器采集的数据进行匹配处理,从而在确保地震记录稳定性的前提下,发挥压电检波器高灵敏度、大动态范围和宽线性工作带的性能优势,以此来改善地震资料的品质.在塔巴庙地区的应用结果表明:该方法能有效地提高地震记录的主频,展宽有效频带宽度;原始地震记录中的一些复合波被打开,弱反射层得到加强,目的层位的标定更加准确、清晰,分辨率得到了有效地提高.更多还原

【Abstract】 The unstability and high price prevent the piezoelectric geophones from being largely used,according to which,the following method was presented to solve the problems: firstly,set up the conventional electric and piezoelectric geophones in the same survey line(the test line) and collect the seismic data simultaneously,then get a piezoelectric matched filter according to the difference of these two sets of data,and at the end,deal with the data collected by the conventional geophone using the matched filter.During this process,the superiorities of the piezoelectric geophone including the high sensitiveness,large dynamic range and wide linear work band were used well in the premise of ensuring the stability of seismic records.The application in the Tabamiao region showed that the dominant frequency was improved and the effective frequency ranges was broadened;some complex waves in the conventional seismic records were divided,weak reflections were strengthened,the calibration of target layers was more accurate and the resolution was effectively improved.更多还原