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avo技术在碳酸盐岩缝洞型储层预测中的应用

Keywords: 碳酸盐,缝洞型储层,储层分类预测,avo正演,avo流体检测

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Abstract:

?塔里木盆地英买a区碳酸盐岩储层发育,但储层类型多样且非均质性较强,储层含油气性存在较大的差异,给该区油气上产增加了难度.因此本文以地质、测井和地震资料为基础,分析了不同成因储层的地震响应特征,明确了"串珠"和"片状强反射"储层可开展叠前avo油气检测;进而以岩石物理方法为基础,进行流体替换和正演分析,确定这两类含油气储层的avo敏感属性为p×g属性,据此开展了这两类储层含油气性的预测.通过实际钻井资料验证,该方法预测结果的准确度高,可以作为该区井位部署的重要依据.

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