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Rapid Evaluation of the Permeability of Organic-Rich Shale Using the 3D Intermingled-Fractal Model
Li CX(李曹雄); Lin M(林缅); Ji LL(姬莉莉); Jiang WB(江文滨); Cao GH(曹高辉)
2018-08
发表期刊SPE Journal
页码https://doi.org/10.2118/191358-PA
摘要

Shale possesses abundant micro/nanopores. Most micro/nanopores that exist in organic-rich shale are organic pores and mainly developed in organic matter. The pore distribution in matrix space significantly affects gas percolation and diffusion. Pore-size distribution possesses a self-similar, or fractal, property. The pore space and gas permeability of shale can be easily rebuilt and evaluated, respectively, using fractal theory. In this work, a 3D intermingled-fractal model (3D-IFM) is successfully built using scalable scanning-electron-microscopy (SEM) images of shale samples. 3D-IFM is made up of several components, including organic pores in organic matter and in pyrites, inorganic pores, slits, and matrix. An improved pore-connective-calculation method is also introduced to evaluate the apparent gas permeability of the shale model. The proposed 3D-IFM rapid-permeability-evaluation method for organic-rich shale is valid and useful and considers the main components of shale. This method can rapidly evaluate apparent gas permeability and simplify the apparent-gas-permeability-calculation process. Thus, the method provides a promising means of rapidly evaluating apparent gas permeability.

DOI10.2118/191358-PA
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收录类别SCI
语种英语
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力学所作者排名1
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文献类型期刊论文
条目标识符http://dspace.imech.ac.cn/handle/311007/77961
专题流固耦合系统力学重点实验室
推荐引用方式
GB/T 7714
Li CX,Lin M,Ji LL,et al. Rapid Evaluation of the Permeability of Organic-Rich Shale Using the 3D Intermingled-Fractal Model[J]. SPE Journal,2018:https://doi.org/10.2118/191358-PA.
APA Li CX,Lin M,Ji LL,Jiang WB,&Cao GH.(2018).Rapid Evaluation of the Permeability of Organic-Rich Shale Using the 3D Intermingled-Fractal Model.SPE Journal,https://doi.org/10.2118/191358-PA.
MLA Li CX,et al."Rapid Evaluation of the Permeability of Organic-Rich Shale Using the 3D Intermingled-Fractal Model".SPE Journal (2018):https://doi.org/10.2118/191358-PA.
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