Application of spatial-windowed 2D Hilbert transform in volumetric edge detection of 3D seismic data
LYU Bingnan1, CHEN Xuehua1,2, XU He2, LIU Yunfei2, LUO Xin2, ZHOU Chen2
1. State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation, Chengdu University of Technology, Chengdu, Sichuan 610059, China; 2. Key Lab of Earth Exploration & Information Techniques of Ministry of Education, Chengdu University of Technology, Chengdu, Sichuan 610059, China
Abstract：Discontinuous seismic data greatly affect the identification to channels,faults and fracture zones.An edge detection method using 3D seismic data is proposed,which is based on 2D Hilbert transform.By adding time and depth windows into the 3D target layer and adding a 2D Gauss function,an improved 2D Hilbert operator is established.It can update the calculation aperture in 3D space for detecting any discontinuous seismic anomalies and reduce noises.Model and real seismic data have proved that the edge detection method can effectively describe the spatial characteristics of geological anomalies,and highlight the edge and orientation of a fracture zone.It is help improves the accuracy of seismic data interpretation.
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