雄安新区及周边深反射地震高精度成像技术  

High-precision imaging technology of deep reflection seismic in Xiong’an New Area and its surroundings

作　　者：岳航羽 王凯[1,2,5] 张杰 刘建勋[1,2] 王小江[1,2] 张保卫 YUE Hangyu;WANG Kai;ZHANG Jie;LIU Jianxun;WANG Xiaojiang;ZHANG Baowei(Institute of Geophysical and Geochemical Ex-ploration,Chinese Academy of Geological Scien-ces,Langfang,Hebei 065000,China;National Center for Geological Exploration Technology,Langfang,Hebei 065000,China;Center for Geophysical Survey,China Geological Survey,Langfang,Hebei 065000,China;School of Geophysics and Information Techno-logy,China University of Geosciences(Beijing),Beijing 100083,China;College of GeoExploration Science and Techno-logy,Jilin University,Changchun,Jilin 130026,China)

机构地区：[1]中国地质科学院地球物理地球化学勘查研究所,河北廊坊065000 [2]国家现代地质勘查工程技术研究中心,河北廊坊065000 [3]中国地质调查局地球物理调查中心,河北廊坊065000 [4]中国地质大学(北京)地球物理与信息技术学院,北京100083 [5]吉林大学地球探测科学与技术学院,吉林长春130000

出　　处：《石油地球物理勘探》2022年第4期855-869,I0005,I0006,共17页Oil Geophysical Prospecting

基　　金：国家重点研发计划项目“高精度光纤深地地质结构成像探测仪开发和应用”(2018YFF01013500);中国地质调查局地质调查项目“雄安新区深部三维地质结构探测(物化探所)”(DD20189133)、“冀中坳陷深部碳酸盐岩热储调查评价(物化探所)”(DD20190556)和“银额盆地南部地区区域地球物理调查”(DD20208002);中央级公益性科研院所基本科研业务费专项资金资助项目“雄安新区浅层地下空间高精度地震探测技术研究”(JYYWF20180302)联合资助。

摘　　要：深反射地震探测技术作为一种能精细查明地下深部地质结构及构造特征的有效手段,为雄安新区的总体规划与建设、构建万米“透明雄安”基础平台提供详实的地质资料。将深反射地震应用于雄安新区及周边地质调查,并开展深反射地震高精度成像技术研究,针对该区深反射地震剖面长度长、跨度广、能量不均衡、深层信号弱、干扰波复杂多变等问题,设计、制定有针对性的深反射地震高精度成像流程,选用适用技术及其组合从复杂的地震波场中逐步提取与地层界面、构造特征相关的深反射地震有效信号。最终成像结果的信噪比和分辨率均较高,其波组特征突出,地质信息丰富,构造格局层次分明,地层接触关系清晰明了,能够为雄安新区地层划分和综合地质(资源)评价等提供数据支持,更好地服务于该区的基础地质建设。As an effective method to find out the deep geological structure and tectonic features,deep reflection seismic detection can provide detailed geological data for the overall planning and construction of Xiong’an New Area and 10000-meter“Transparent Xiong’an New Area”basic platform.Therefore,deep reflection seismic is applied to the geological survey of this area and its surroundings.Meanwhile,research on high-precision imaging technology of deep reflection seismic is carried out.Given the long length,wide span,imbalanced energy,weak signals at depth,and complex and variable noise of the deep reflection seismic profile in Xiong’an New Area and its periphery,a targeted high-precision imaging process of deep reflection seismic is designed and formulated.The key applicable technologies are also selected to gradually extract effective signals of deep reflection seismic,which are related to stratum interfaces and tectonic features from the complex seismic wave field.The SNR and resolution of the final results are high,with rich geological information,distinct structural framework,and clear strata relationship extracted from the deep reflection seismic profile.The results can provide data support for stratigraphic identification and comprehensive geology(resource)evaluation in this area and can better serve the basic geological construction of Xiong’an New Area.

关 键 词：雄安新区 深反射地震 高精度成像 深部弱信号提取 

分 类 号：P631[天文地球—地质矿产勘探]