Abstract：Two computation methods for simple 3D models are recommended in this paper,The procedure of first method is as follows:first,the coordinates,reflection times and normal travel tiems of all elements of reflection surfaces are respectively computed by using Snell's Law in 3D domain,and then stored in computer;second,the zero offset section of seismic line is obtained by cnvolving a wavelet with-reflection coefficients at the corresponding times of all elements of each reflection surface,the core 0.sponding times being drawn respectively from the storage of computer in the light of the ground location of seismic line,The second method is a rotational stacking one suitable for some symmetric 3D models.In using this method,we first obtain 2D section byapplying Snell's Law,then take a record trace as rotation axis and revolve the 2D section for 180° or 360° to form the record data of anypoint in 3D domain.
引用本文:
吴国明, 龚小金. 简单三维模型的计算方法[J]. 石油地球物理勘探, 1983, 18(6): 502-509.
Wu Guoming, Gong Xiaojin. The computation for simple 3D models. OGP, 1983, 18(6): 502-509.
