The Advantage of Prestack Depth Migration Technique in Urban Active Fault Detection
详细信息
- 责任者：Wang Zhihui (College of Geo-Exploration Science and Technology ; Jinlin University ; Changchun 130026 ; China) ; Han Liguo
- 刊名：City Geology
- 出版年：2011
- 卷期：6(1)
- 关键词：叠前深度偏移 ; prestack depth migration ; 活动断层 ; active faults
- 页码：p.52-55
- 图表：8 illus., 7 refs.
- 分类号：1600
- issnNo：ISSN1007-1903
- isbnNo：CN11-5519/P
摘要
This 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.