It's difficult to estimate a seismic reflector dip at discontinuities.Many seismic attributes such as reflector dip change fast at faults,geological boundaries and so on.To overcome this problem,we explored an adaptive weighted generalized inverse vector direction filter to smooth the gradient vector field to estimate a local seismic reflector dip.The method is as below:at first,to compute the gradient vector field by a modified finite-difference method;and then to set the reference direction to vertical do...
【基金】
国家自然科学基金项目(41274120,41404085,41504084)~~
【更新日期】
2018-06-01
【分类号】
P631.4
【正文快照】
0引言在地震数据处理和解释过程中,地震数据和地震图像的局部结构方向(倾角属性)提供了丰富的地层和地理信息,应用广泛。如:层析成像[1-3],偏移速度分析[2,4],波场分离[5],数据去噪与导向滤波[6-7],Seislet变换[8],自动正常时差校正(ANMO)与成像[9-11],CRS(common reflection s