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基于地震非线性反演的煤层气分布预测
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摘要
作为一种典型的自生自储,多重孔渗的有机储层,煤层气储层的识别和预测就是一个很重要的问题。本文提出的非线性反演方法,在充分依靠地震资料的基础上,提高了储层预测的精度。该方法在沁水盆地得到了良好的应用,与实际地震资料对比发现,预测精度与井上的解释成果吻合率较高,预测的煤层气分布与地质规律符合。
The coal-bed gas has been proved that it is a porous, self-generation and self-storage also organic reservoir. Coal-bed gas prediction is the most important issue to be solved. This paper proposes nonlinear inversion which push forward the accuracy of prediction. Besides, based on practical seismic profiles, this method is well applied in Qinshui Basin, which the results is consistent with well-log interpretation and the distribution of coal-bed gas is well conformed to practical geology condition.
引文
[1]苏现波等,煤层气地质学与勘探开发[M],科学出版社,2001。
    [2]李庆忠,论地震约束反演的策略[J],石油地球物理勘探,1998,33(4):4232438。
    [3]杨文采,地震道的非线性混沌反演(Ⅰ),地球物理学报,1993.36(2):222-232。
    [4]黄捍东等,地震相控非线性随机反演研究与应用[J],石油地球物理勘探,2007;42(6):694-698。

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