大倾角地区的三维地震勘探应用与效果  

Application and effect of 3D seismic exploration in larger dip area

作　　者：王德全[1] 夏海蛟 袁春[1] 

机构地区：[1]吉林省煤田地质物探公司,吉林长春130033

出　　处：《吉林地质》2012年第1期84-87,共4页Jilin Geology

摘　　要：该勘探区位于白山市江源区,地表地形复杂,埋藏较深,地层倾角很大。针对本区特点,采用静校正、反褶积测试、地表一致性剩余静校正、叠后及叠前时间偏移等处理手段,尤其采用了叠前时间偏移技术,保证三维归位的准确性,提高了分辨率。查明了区内10 m以上的断层,控制了煤系地层的起伏形态,并圈定了主要煤层南部赋存边界。The exploration area is located in Jiangyuan area of Baishan City,There is rather complicated topography,deeper structure,larger strata dips.According to this feature,Processed the static correction,deconvolution test,surface consistency residual static correction,poststack and prestack time migration processing methods,especially processed the prestack time migration to ensure the accuracy of the three dimensional position,increase the resolution.Found out the faults above 10 meters,controled the fluctuant form of coal formation,and confined the main southern boundary of coal seam occurrence.

关 键 词：三维地震勘探 叠前时间偏移 构造复杂区 

分 类 号：P631.4[天文地球—地质矿产勘探]