匹配滤波技术在煤田井震联合勘探中的应用  

Application of Matched Filtering Technique in Coalfield Seismic Prospecting Explosive Source and Vibroseis Joint Operation

作　　者：解洁清 王骁睿 Xie Jieqing;Wang Xiaorui(Research Institute of Coal Geophysical Exploration,CNACG,Zhuozhou,Hebei 072750;The Shale Oil Development Department of Longdong Area,Changqing Oilfield Company,Qingyang,Gansu 745100)

机构地区：[1]中国煤炭地质总局地球物理勘探研究院,河北涿州072750 [2]长庆油田陇东页岩油开发项目部,甘肃庆阳745100

出　　处：《中国煤炭地质》2022年第10期77-80,共4页Coal Geology of China

基　　金：中国煤炭地质总局科技创新项目“煤矿‘透明采区’地球物理探测技术”(ZMKJ-2020-J08-3)。

摘　　要：为了解决煤田地震勘探中使用炸药震源与可控震源联合施工的反射数据差异问题,提出了匹配滤波处理的解决技术方案。即基于某区实际勘探中炸药震源与可控震源联合施工的原始资料,通过充分了解不同激发方式数据在能量、相位、时间、频带等方面的差异,运算提取各自原始单炮的滤波算子,从而完成匹配滤波并应用到叠前数据中。滤波算子在具体的应用中可调整数据的波形、能量和频带范围,由此消除子波差异,完成拼接处理。经处理实例验证,匹配滤波技术较好地解决了可控震源与炸药震源联合勘探中的地震资料子波差异问题,可广泛应用于煤田地震勘探的多震源子波整形处理流程中。To solve the issue of reflection data differences in seismic prospecting explosive source and vibroseis joint operation,the paper has proposed matched filtering settlement technical scheme.That is based on an area practical prospecting explosive source and vibroseis joint operation primary information,through fully comprehended of different shot mode data differences on aspects of energy,phase,time and wave band etc.Operation has extracted respective original single-shot filtering operators,thus completed matched filtering and applied into prestack data.Filtering operators can adjust data waveform,energy and wave band ranges,thereout eliminate wavelet differences,complete splice treatment process.After processed cases verification,matched filtering technique can solve explosive source and vibroseis joint operation seismic data wavelets difference issue better,can be vastly applied in coalfield seismic prospecting multisource wavelet shaping process.

关 键 词：炸药震源 可控震源 子波差异 滤波因子 拼接 

分 类 号：P631.4[天文地球—地质矿产勘探]