Elastic Wave Reverse Time Migration for Cross-Well Seismic

Abstract

Cross-well seismic is a geophysical exploration method, where the seismic source is triggered in one well and the data are accepted in another well, in order to obtain the geological structure between the two wells. In this paper, we mainly study the algorithm of elastic wave reverse time migration imaging with cross-well seismic models. The forward simulations, pre-processing of received data, and reverse time migration imaging are presented. To overcome the problem of large amounts of memory costs in reverse time migration, we develop a saving boundary scheme into cross-well seismic to reduce the memory consumption. The feasibility of our algorithm is verified by a horizontally layered model.