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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。
The D-S evidence theory provides a good idea for integrating uncertain information. In this paper, we propose the DS evidence theory for seismic multi-attribute fusion. Firstly, the seismic attributes that are sensitive to the change of CBM content are selected under the guidance of measured CBM content in the borehole. Then, based on the DS evidence theory, the preferred seismic attributes Fusion process, and the result of fusion is used in the prediction of CBM enrichment area. The practical application results show that the prediction results are in good agreement with the measured CBM content. The multi-attribute seismic fusion method based on D-S evidence theory proposed in this paper is feasible for predicting the CBM enrichment area.