基于D-S证据理论的地震多属性融合方法在煤层气富集区预测中的应用

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摘要 D-S证据理论为融合不确定信息提供了一条很好的思路。本文提出将D-S证据理论用于地震多属性融合的方法，首先在钻孔实测煤层气含量值的指导下优选对煤层气含量值变化敏感的地震属性，然后基于D-S证据理论对优选的地震属性进行融合处理，并将融合结果用于煤层气富集区的预测。实际应用效果表明：预测结果与钻孔实测煤层气含量值基本吻合，本文提出的基于D-S 证据理论的地震多属性融合方法用于预测煤层气富集区是可行的。

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	祁雪梅
	张绍聪

关键词： D-S证据理论煤层气地震属性融合

Abstract： D-S evidence theory provides a good approach to fuse uncertain information. In this article, we introduce seismic multi-attribute fusion based on D-S evidence theory to predict the coalbed methane (CBM) concentrated areas. First, we choose seismic attributes that are most sensitive to CBM content changes with the guidance of CBM content measured at well sites. Then the selected seismic attributes are fused using D-S evidence theory and the fusion results are used to predict CBM-enriched area. The application shows that the predicted CBM content and the measured values are basically consistent. The results indicate that using D-S evidence theory in seismic multi-attribute fusion to predict CBM-enriched areas is feasible.

Key words： D-S evidence theory CBM seismic attributes fusion

收稿日期: 2012-01-08;

基金资助:

国家重点基础研究发展计划（973计划）项目（2009CB219603）、国家科技重大专项项目（2008ZX05035 ）和江苏高校优势学科建设工程资助项目联合资助。

引用本文:

祁雪梅,张绍聪. 基于D-S证据理论的地震多属性融合方法在煤层气富集区预测中的应用[J]. 应用地球物理, 2012, 9(1): 80-86.

QI Xue-Mei,ZHANG Shao-Cong. Application of seismic multi-attribute fusion method based on D-S evidence theory in prediction of CBM-enriched area*[J]. APPLIED GEOPHYSICS, 2012, 9(1): 80-86.

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