长庆油田GFZ三维可控震源资料关键处理技术  

Key processing techniques for 3D vibroseis data in the GFZ area,Changqing Oilfield

作　　者：赵玉华[1,2] 陈娟 段毅[3] 寇芹 黄研 刘小亮 

机构地区：[1]中国石油长庆油田分公司勘探开发研究院,陕西西安710018 [2]低渗透油气田国家工程实验室,陕西西安710018 [3]东方地球物理公司物探技术研究中心,河北涿州072751

出　　处：《石油地球物理勘探》2017年第A02期50-55,共6页Oil Geophysical Prospecting

基　　金：鄂尔多斯盆地致密油开发示范工程(2017ZX05069)项目资助

摘　　要：针对鄂尔多斯盆地GFZ地区宽方位三维可控震源资料的特点,利用GeoEast处理系统中层析静校正、叠前保真噪声压制、高分辨率处理、OVT域处理、叠前时间偏移及方位各向异性校正等处理技术,得到了高品质的叠加、偏移及分方位角成果资料。实际应用效果表明,应用GeoEast处理系统取得了较好的处理效果,为地震解释开展叠前反演、构造解释及裂缝预测等提供了资料保证。该套GeoEast处理系统三维处理流程可在长庆探区推广应用。A wide-azimuth 3D vibroseis survey was carried out recently in the GFZ area,Ordos Basin.We have processed this wide-azimuth 3 Ddataset with different tools provided by GeoEast.The key processing techniques include:tomo-static corrections,prestack noise suppression,high resolution processing,offset vector tile(OVT)processing,prestack time migration,and azimuthal anisotropy corrections.High-quality stacks,migrations,and different azimuth stacks data are obtained.Our application results show that GeoEast processing system achieves good success,which provides an excellent dataset for prestack inversion,structural interpretation and fracture prediction.

关 键 词：可控震源 复杂地表 宽方位三维地震 OVT 方位各向异性校正 

分 类 号：P631[天文地球—地质矿产勘探]