Three-dimensional temporal migration according to initial data of areal seismic exploration
Journal Title: Геофизический журнал - Year 2016, Vol 38, Issue 1
Abstract
Migration methods are traditionally subdivided into two groups depending on carrying out the procedure of summing up the route by the method of common deep point (CDP): before and after summing up (pre- and post-stack migration in English variant). Despite the fact that while processing seismic data we use post-stack migration more often, pre-stack migration allows pro¬ducing deep image of geological medium in more details that naturally increases the quality of interpretation of seismic exploration data. Therefore in the case when we need to study all the features of deep structure of geological environment, pre-stack migration will give us more in-formative result, especially while processing the data of areal seismic exploration in the areas with complicated tectonics. A variant of three-dimensional temporal finite-difference pre-stack migration has been proposed based on reverse extension of the wave field in temporal scale of depth, realized by solving of wave equation by obvious residual scheme. This approach guaran¬tees a correct and steady solving of the problem of producing three-dimensional image of the environment demonstrated by practical example of processing the data, observed in Krasnoly- mansk area (Donbass region).
Authors and Affiliations
V. N. Pilipenko, A. O. Verpakhovskaya, V. B. Budkevich
Keywords
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