摘要
为了精细描述储层,将步进迭代法应用于井地联合地震资料拓频处理中。针对两种地球物理资料的差异,通过步进迭代法降频处理测井资料。优化步进迭代方程参数提高测井与地震资料在地震中、低频范围内的匹配程度。降频后的测井资料可用于提取匹配因子,进而建立高分辨率地震地质模型,采用联合反演技术对三维地面地震数据体进行高分辨率处理。实际地震资料处理结果表明:该方法拓宽了地震频带宽度,丰富了地震资料频率成分,有效地提高了地震分辨率,改善了地震资料的品质。
In order to describe reservoir details,a stepby-step iteration method is proposed for joint frequency expanding of well logging data and 3D surface seismic data.First,we use the step-bystep iteration to downgrade well logging data frequency.So well logging and seismic data in the mid and low-frequency are well matched by parameter optimization of the step-by-step iterative equations.Then we can extract matching factors through the downgraded well logging data,establish high-resolution seismic geologic model,and expand bandwidth of 3Dsurface seismic data for joint inversion.The processing results of real seis-mic data in the work area show that the proposed method has broadened surface seismic bandwidth and improved its resolution.
出处
《石油地球物理勘探》
EI
CSCD
北大核心
2017年第4期696-703,共8页
Oil Geophysical Prospecting
关键词
测井资料
步进迭代法
参数优化
地震地质模型
三维地面地震资料
联合拓频
频带宽度
well logging data
step-by-step iteration
parameter optimization
seismic geologic model
3Dsurface seismic dataj
oint frequency expanding
bandwidth
