华南深地震反射剖面联线关键处理成像技术与效果分析  

Image processing technology and effect analysis of deep seismic reflection profile across South China

作　　者：王海燕[1] 高锐[1,2] 匡朝阳 李文辉[1] 李洪强[1] 赵玉莲[4] WANG Hai-yan;GAO Rui;KUANG Chao-yang;LI Wen-hui;LI Hong-qiang;ZHAO Yu-lian(Lithosphere Research Center,Institute of Geology,CAGS,Beijing 100037,China;School of Earth Science and Engineering,Sun Yat-sen University,Guangzhou 510275,China;Geophysical Exploration Division No.6,Huadong Petroleum Bureau,SINOPEC,Nanjing 210009,China;PetroChina Exploration ＆ Development Research Institute（Northwest）,Lanzhou 730020,China)

机构地区：[1]中国地质科学院地质研究所岩石圈中心,北京100037 [2]中山大学地球科学和工程学院,广州510275 [3]华东石油局第六物探大队,南京210011 [4]中国石油勘探开发研究院西北分院,兰州730020

出　　处：《桂林理工大学学报》2018年第2期222-229,共8页Journal of Guilin University of Technology

基　　金：国家自然科学基金项目(41274097;41574094);公益性行业科研专项项目(Sinoprobe-02-01)

摘　　要：华南大陆地质条件复杂、地形起伏大且地下构造复杂,深地震反射资料具有信噪比低、干扰强、振幅不一致、横向速度变化大等特点。为完整地揭示华南大陆深部细结构和构造变形样式,对重庆—邵阳、邵阳—漳浦2条深地震反射剖面(3套数据)进行了拼接联线处理。针对数据的特点,采用了多种处理系统相结合,使用数据拼接整合、复合多域去噪、精细速度分析与综合寻优剩余静校正、共反射面元叠加和偏移成像等关键处理技术,得到高信噪比、高分辨率的成果剖面,为研究华南大陆形成演化过程提供了深部地震学数据。The geological conditions of south China continent are complex,with undulating topography and complex underground structures. The deep seismic reflection data has features such as low signal-to-noise ratio,strong interference,inconsistent amplitude,and large lateral velocity variation. In order to reveal completely the deep fine structure and structural deformation style of southern China continent,we merge and process the two deep seismic reflection profiles with Chongqing-Shaoyang section and Shaoyang-Zhangpu section（ 3 sets of data）. According to the feature of the deep seismic reflection data,we used a variety of processing systems.The key processing techniques,including data merging,multi-domain noise suppression,comprehensive optimization of residual static correction,common reflection surface stack and migration imaging,are used to obtain the high-resolution and high signal-to-noise ratio section. The section provides deep seismologic evidence for the study of the formation and evolution in the southern China continent by revealing its deep crust structure.

关 键 词：深地震反射剖面 数据处理 数据整合拼接 复合多域去噪 共反射面元叠加 

分 类 号：P631.443[天文地球—地质矿产勘探]