2D zero-offset common reflection surface stack and its application in engineering seismic prospecting
This paper analyzed the shortcoming of conventional methods of zero-offset (ZO) section simulation and presents the strongpoint of zero-offset common reflection surface (ZO CRS) stack. This paper also describes the theory and implementation of 2D ZO CRS stack. The 2D ZO CRS stack approximates the reflection event by three parameters in a hyperbolic CRS traveltime formula, and it is well suited to image the curve interface where the variation of curvature is consistent by means of stacking, and this method can provide the simulated section with the best illumination for the reflecting interface in the subsurface. We verified the method on 2D synthetic data and applied it to low-fold land engineering seismic data from western China. Application of ZO CRS stack on synthetic examples and engineering seismic records shows that this technique can improve the stacked section by increasing the signal-to-noise ratio and enhancing the consistence of reflection event, and the results reveal that the ZO CRS stack is a promising seismic imaging method of zero-offset section simulation.
signal-to-noise ratio zero-offset common reflection surface stack
Guohua Liu Qingchun Li Xiaoping Tang
Dept. of Geophysics, College of Geological Engineering and Geomatics, Changan Univ. 126 YanTa Road, Dept. of Geophysics,College of Geological Engineering and Geomatics, Changan Univ. 126 YanTa Road,X
国际会议
成都
英文
250-254
2010-06-14（万方平台首次上网日期，不代表论文的发表时间）