IMECH-IR  > 流固耦合系统力学重点实验室
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)
Source PublicationSPE Journal
2018-12
Volume23Issue:6Pages:2175-2187
ISSN1086-055X
Abstract

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.

KeywordTHERMAL-CONDUCTIVITY POROUS-MEDIA GAS-FLOW RELATIVE PERMEABILITY CONTINUUM FRAMEWORK SIZE DISTRIBUTION UNITS MODEL PREDICTION IMBIBITION MECHANICS
DOI10.2118/191358-PA
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Indexed BySCI
Language英语
WOS IDWOS:000456057200013
Classification一类
Ranking1
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Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/77961
Collection流固耦合系统力学重点实验室
Recommended Citation
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,2018,23(6):2175-2187.
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,23(6),2175-2187.
MLA Li CX,et al."Rapid Evaluation of the Permeability of Organic-Rich Shale Using the 3D Intermingled-Fractal Model".SPE Journal 23.6(2018):2175-2187.
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