2011•Urban GeologyRequires access

The Advantage of Prestack Depth Migration Technique in Urban Active Fault Detection

Wang Zhihui, Han Liguo

Abstract

The paper introduces two migration methods:Kirchhoff depth migration and wave equation prestack depth migration,and compares the imaging result of prestack depth migration with conventional stacked profile and post-stack time migration profile by processing the data model of the Marmousi and the actual data.The result shows that prestack depth migration is more accurate for complex structure imaging in media of strong laterally varying velocity,and suitable for the more accurate detection of urban active fault.

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Key concepts: Prestack, Seismic migration, Geology, Seismology, Stack (abstract data type), Fault (geology), Computer science, Programming language