确定孔隙结构分形维数的新方法

何琰; 吴念胜

doi:10.11781/sysydz199904372

确定孔隙结构分形维数的新方法

doi: 10.11781/sysydz199904372

何琰,
吴念胜

西南石油学院勘探系, 四川南充637001

基金项目: 国家“863”项目(863-306-04-03-1A)资助.

详细信息

作者简介:
何琰(1971- ),女,四川蓬溪人,讲师,博士生,主要从事储层地质学和油藏描述方面的研究.

中图分类号: TE19
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出版历程
- 收稿日期: 1999-05-17
- 刊出日期: 1999-10-28

A NEW METHOD FOR DETERMINING FRACTAL DIMENSION OF PORE STRUCTURE

Exploration Dept., Southwest Institute of Petroleum, Nanchong, Sichuan 637001, China

摘要

摘要: 储层岩石的孔隙空间具有良好的分形特征。将分形几何学的原理运用于储层岩石的孔隙结构研究,能建立毛细管压力曲线、相对渗透率、孔喉大小分布等的分形模型。但这些模型只有在求取了孔隙结构分形维数D的基础上,才可能对孔隙结构作出预测。本文提出了在建立毛细管压力分形模型的基础上,运用毛细管压力资料预测分形维数D.通过实测检验证明,该方法不仅简便易行、精度高,而且能直接得到三维空间的信息,值得研究和推广应用。
- 分形几何学 /
- 孔隙结构 /
- 扫描电镜 /
- 毛细管压力 /
- 分形维数
Abstract: There is fractal property in reservior rocks. According to the principle of the fractal geometry, the pore structure can be studied, and the fractal model of the capillary pressure curve and the relative permeability and the pore throat distribution can be set up. But the pore structure can be predicted when the fractal dimension D has been acquired. At present, the fractal dimension is acquired by the scanning electron microscopy. But it is not easy to use it to calculate D. Based on proposed fractal capillary pressure model, the fractal dimension D is predicted by capillary pressure data. The practical data verifies the validity of this method and the method is simpler than scanning electron microscopy.
- the fractal geometry /
- pore structure /
- scanning electron microscopy /
- the capillary pressure /
- the fractal dimension

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参考文献(15)

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