淮南矿区高精度三维地震勘探技术应用  

Application of high-precision 3D seismic exploration technology in Huainan mining area

作　　者：刘俊[1] 赵伟[1] 韩必武[1] LIU Jun;ZHAO Wei;HAN Biwu(Huainan Mining Industry(Group)Co.,Ltd.9 Huainan 232001,China)

机构地区：[1]淮南矿业集团,安徽淮南232001

出　　处：《煤田地质与勘探》2020年第6期8-14,共7页Coal Geology & Exploration

摘　　要：淮南矿业集团于2007年首次将全数字高密度三维地震勘探技术引入煤炭领域,并成功推广应用;由于常规三维地震区块受采动塌陷影响,不具备再次施工高密度三维地震的条件,2012年开始,淮南矿业集团对常规三维地震区块的原始采集数据进行二次精细处理、解释。高密度三维地震勘探和三维地震资料二次处理解释都有效提高了地震资料的信噪比和横向、纵向分辨率,达到了高精度三维地震探测的目的。通过煤矿大量揭露资料对比分析:高密度全数字三维地震勘探技术对于识别小断层、查找陷落柱、刻画灰岩地层裂隙等方面效果显著;常规三维地震资料进行二次精细处理、解释能明显改善下部煤层的成像效果。高精度三维地震勘探技术具有广阔的推广应用前景。Huainan Mining Group first introduced the full-digital high density 3D seismic exploration technology into the field of coalfield 3D seismic exploration in 2007,and has successfully promoted and applied it.As conventional seismic blocks were affected by mining collapse,they did not have the conditions for reconstruction of high density 3D seismic.In 2012,it began to perform secondary fine processing and interpretation of the original collected data of conventional 3D seismic blocks.Both high density 3D seismic exploration and secondary processing and interpretation of 3D seismic data have effectively improved the signal-to-noise ratio and horizontal and vertical resolution of seismic data,achieving the purpose of high-precision 3D seismic exploration.Through comparative analysis of a large number of uncovered data from coal mines,high density,fully digital 3D seismic exploration technology has significant effect in identifying small faults in coal mines,finding collapsed columns,and depicting limestone fissures.The secondary fine processing and interpretation of conventional 3D seismic data can significantly improve the imaging effect of the lower coal seams.High-precision 3D seismic exploration technology has broad prospects for popularization and application.

关 键 词：高密度三维地震 高精度 精细处理 断层 陷落柱 

分 类 号：P631.4[天文地球—地质矿产勘探]