淮南矿区宽带高精度三维地震采集技术  

Application of Broadband Precision 3D Seismic Acquisition Technology in Huainan Mining Area

作　　者：李斌[1] 刘胜[2] 

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]中国矿业大学,北京100081

出　　处：《中国煤炭地质》2009年第A02期84-86,共3页Coal Geology of China

摘　　要：淮南矿区以往采集的深层地震资料信噪比和分辨率都较低,严重影响煤炭勘探效果。为了彻底解决地震资料品质对勘探效果的束缚,选择淮南矿区DJ区的勘探勘探作为攻关项目,通过采取最佳岩性激发、有效弱信号保护和对称变观采集系统等一系列的宽带采集技术及措施,取得了好的效果。实例表明,宽带高精度三维地震采集技术可以保证断层的断面波成像,对落差小于5m的断层勘探可取得较好效果。Formerly acquired deep seismic data in the Huainan mining area have lower S/N ratio and resolution, seriously impact coal prospecting effect. To completely solve the restriction of exploration effect from seismic data quality, the DJ district of Huainan mining area was selected as the prospecting key task project area, through a series of broadband acquisition techniques and measures such as optimal lithologic shooting, effective weak signal protection and symmetric flexible geometry, acquisition setup and then good results obtained. Examples demonstrated that the broadband precision 3D seismic acquisition technology can ensure imaging of fault sectional wave, and obtain better effect in prospecting of fault with throws less than 5m.

关 键 词：宽带采集 最佳激发深度 数字检波器 三维地震 

分 类 号：P631.4[天文地球—地质矿产勘探]