supported by the Beijing Natural Science Foundation(No.8222030);the National Natural Science Foundation of China(Nos.62127815,42150201);the research project of the China National Petroleum Corporation(No.2021ZG02);sponsored by the Chinese“111”project(No.B20011);supported by the Highperformance Computing Platform of China University of Geosciences Beijing。
INTRODUCTION The optical-fiber distributed acoustic sensing-vertical seismic profiling(DAS-VSP)acquisition system can record seismic data in wells continuously,thus providing several advantages such as dense spatial s...