ESTIMATION OF ANISOTROPY PARAMETERS IN VTI MEDIA USING SURFACE P WAVE DATA
LUO Xiao-ming1, WANG Shi-rui2
1. Postdoctoral Programme, BGP, CNPC, Zhuozhou 072751, China;
2. Key Laboratory of Geophysical Exploration under CNPC, University of Petroleum, Beijing 102249, China
With the conventional P wave normal moveout correction based on hyperbolic moveout, the events on the far offset have a significant departure from hyperbolic moveout on CDP gather and long offset stacked section on wide azimuth seismic data in some areas of Tarim Basin. Nonhyperbolic moveout is caused by anisotropy and vertical inhomogeneity of velocity in VTI media. With the short offset RMS moveout velocity, the author obtained the anisotropic parameters by using scanning and traveltime inversion separately. The image was improved greatly by anisotropy velocity analysis in VTI media using the anisotropic parameters acquired.
罗小明, 王世瑞. 纵波VTI介质各向异性参数的求取[J]. 物探与化探, 2006, 30(3): 233-235.
LUO Xiao-ming, WANG Shi-rui. ESTIMATION OF ANISOTROPY PARAMETERS IN VTI MEDIA USING SURFACE P WAVE DATA. Geophysical and Geochemical Exploration, 2006, 30(3): 233-235.
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