Fault analysis of azimuth curvature attribute based on curvelet transform

Traditional seismic geometric attribute analysis usually does not contain azimuth information. Considering the direction of fault and fracture development, this paper proposes a method of fault analysis based on azimuth information. In this paper, the seismic data are processed by anisotropic filtering through the curvelet transform, then the azimuth angle component is processed in different azimuths. The dip azimuth is used to reconstruct the trend surface coefficient, and then analyses the seismic data in this paper. The result of case analysis shows that the combination of azimuth information and seismic curvature attributes can exclude the interference of other undesired directional information and highlight the information in a particular direction, providing a strong basis for later interpretation.