砂岩型铀矿勘探的浅层三维地震资料针对性处理方法  

Targeted processing method of shallow 3D seismic data for sandstone-type uranium deposits exploration

作　　者：雷安贵[1] 孙章庆[2] 董兵波[1] 高树生[1] LEI An-gui;SUN Zhang-qing;DONG Bing-bo;GAO Shu-sheng(Liaohe Oilfield Company,CNPC,Panjin 124010,Liaoning,China;College of Geo-exploration Science and Technology,Jilin University,Changchun 130026,China)

机构地区：[1]中石油辽河油田分公司,辽宁盘锦124010 [2]吉林大学地球探测科学与技术学院,长春130026

出　　处：《世界地质》2020年第4期888-895,共8页World Geology

基　　金：国家重点研发计划(2018YFC0604200);中国石油天然气股份有限公司《新能源技术开发与应用研究》项目(2016A-4803(GF));国家自然科学基金项目(41404085);吉林大学优秀青年教师培养计划(419080500337)资助。

摘　　要：为了提高砂岩型铀矿勘探浅层三维地震资料处理效果,分析了浅层三维地震资料处理存在的问题及难点,并制定一系列针对性处理对策:精细模型法静校正、近地表吸收补偿、串联反褶积、叠前数据规则化和叠后拓频处理。实际数据测试表明,这些针对性对策使得成果数据的主频和频宽均提高50%±,同时信噪比和分辨率均有很大幅度提高。In order to improve the effect of shallow 3D seismic data processing for sandstone-type uranium exploration,the existing problems and difficulties are analyzed,and a series of countermeasures are formulated,including fine model static correction,near surface absorption compensation,series deconvolution,pre-stack data regularization and post-stack frequency extension processing.The actual data testing shows that the dominant frequency and bandwidth of the result data are increased by about 50%,and the signal-to-noise ratio and resolution are greatly improved.

关 键 词：砂岩型铀矿 油铀共生区 浅层 三维地震资料 针对性处理方法 

分 类 号：P631.4[天文地球—地质矿产勘探]