Study and Application of Two-Term AVO Inversion
详细信息
- 责任者：Cai Hanpeng (State Key Laboratory of Oil and Gas Reservoir Geology and Exploration ; Chengdu University of Technology ; Chengdu 610059 ; China) ; He Zhenhua
- 刊名：Journal of Chengdu University of Technology
- 出版年：2011
- 卷期：38(5)
- 关键词：AVO技术 ; AVO techniques ; 反演问题 ; inverse problem
- 页码：p.581-587
- 图表：illus., 1 table, 14 refs.
- 分类号：1600
- issnNo：ISSN1671-9727
- isbnNo：CN51-1634/N
摘要
Based on the error analysis of inverse result of between the common two-term AVO and the three-parameter of the Aki-Richards approximation and using the analytical method this paper discusses the relationship between various two-parameter AVO inversion methods.The result shows the two-term AVO inversion can convert each other under appropriate conditions provide a theory basis for creating new methods.Error expressions indicate that new two-term AVO methods can be obtained,combined with the merits of the commonly used two-term AVO inversion methods and that the result of AVO inversions can be legally calibrated using well-log data.Model analysis verifies that the new two-term AVO approximation has more usable range,and the calibration of inversion result is necessary.Application to actual data shows that the updating inversion results with local calibration can improve the interpretation of geologic configuration.