Anisotropic rock physics models for interpreting pore structures in carbonate reservoirs

Anisotropic rock physics models for interpreting pore structures in carbonate reservoirs
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用于解释碳酸盐岩储层孔隙结构的各向异性岩石物理模型

DOI:
10.1007/s11770-016-0532-6
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发表时间:
2016-04
期刊:
影响因子:
0.7
通讯作者:
Chen Xvqiang
Chen Xvqiang
中科院分区:
地球科学4区
文献类型:
--
作者:
Li Shengjie;Shao yu;Chen Xvqiang

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将各向异性自洽近似和微分有效介质模型相结合,建立了各向异性碳酸盐岩储层弹性行为建模的各向异性有效理论模型。通过对TL地区碳酸盐岩样品实测数据的分析,提出了用于估算碳酸盐岩弹性参数的碳酸盐岩孔隙结构模型,这是碳酸盐岩储层分析的前提。根据各向异性有效理论模型和孔隙结构模型,建立了确定碳酸盐岩储层弹性性质的工作流程。我们进行了数值实验,并对理论预测和实测数据进行了比较。对比结果表明,所建立的各向异性有效理论模型能够较好地解释碳酸盐岩储层速度与孔隙度的关系。该模型为开发预测和评价碳酸盐岩储层性质的新工具奠定了基础。
We developed an anisotropic effective theoretical model for modeling the elastic behavior of anisotropic carbonate reservoirs by combining the anisotropic self-consistent approximation and differential effective medium models. By analyzing the measured data from carbonate samples in the TL area, a carbonate pore-structure model for estimating the elastic parameters of carbonate rocks is proposed, which is a prerequisite in the analysis of carbonate reservoirs. A workflow for determining elastic properties of carbonate reservoirs is established in terms of the anisotropic effective theoretical model and the pore-structure model. We performed numerical experiments and compared the theoretical prediction and measured data. The result of the comparison suggests that the proposed anisotropic effective theoretical model can account for the relation between velocity and porosity in carbonate reservoirs. The model forms the basis for developing new tools for predicting and evaluating the properties of carbonate reservoirs.
地震尺度碳酸盐岩储层岩石物理模拟方法
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