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OALib Journal期刊
ISSN: 2333-9721
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岩石物理分析在叠前储层预测中的应用
Keywords: 岩石物理模拟,横波速度预测,岩石物理量板,叠前反演
Abstract:
？研究区位于苏里格气田的西北侧，目的层盒8段储层为典型的低孔、低渗气藏，物性变化大，非均质性强，纵波阻抗叠置，基于叠后数据的储层预测方法多解性强。因此需通过地震岩石物理分析并结合叠前地震反演，定性或半定量判断砂岩储层的含气性，为气田的勘探与开发提供布井依据。基于此，本文深入剖析岩石物理建模全过程，在测井资料井、震一致性处理基础上，通过标准井标定，选用xu-white模型并利用迭代方法优化关键参数，准确地预测了横波速度并同时修正了密度曲线，为叠前储层描述提供了可靠的基础资料。同时利用岩石物理分析形成的解释量板对叠前反演结果进行解释，提高了气层的识别精度。
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