IMECH-IR  > 流固耦合系统力学重点实验室
A 3D coupled model of organic matter and inorganic matrix for calculating the permeability of shale
Cao GH; Lin M(林缅); Jiang WB(江文滨); Li HS; Yi ZX; Wu CJ; Lin, M (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China.
Source PublicationFUEL
2017-09-15
Volume204Pages:129-143
ISSN0016-2361
AbstractMicrostructure-based quantitative computation of the shale permeability is challenging due to the presence of organic matter with nanoporous features. In this study, a new three-dimensional (3D) coupled model is proposed to investigate the micro-scale permeability of organic-rich-shale matrix. The coupled model consists of two subdomains, organic matter and inorganic matrix. They are described by the pore network model (PNM) and continuum model to capture the non-Darcy and Darcy flow, respectively, and the gas flow in the two subdomains are coupled by finite element mortars (Mortar). The convergence error, grid discretization and parallel scheme are also investigated to get the optimal computing parameters for this model. Then, the effects of the total organic content (TOC), kerogen distribution and pore-size distribution on the apparent permeability (AP) of shale matrix are studied using the coupled model with computer-generated PNMs. And on the basis of FIB-SEM images, a Longmaxi shale sample from the Sichuan Basin, China is introduced to build a real shale model. Results show that AP is more sensitive to TOC and pore-size distribution than kerogen distribution. Additionally, in order to analyze the necessity of 3D model, a comparison of 3D and two-dimensional (2D) model is made and the error of 2D model is pointed out. The 3D couple model affords a foundation for further upscaling of shale permeability to REV scale and reservoir scale. (C) 2017 Elsevier Ltd. All rights reserved.
KeywordMultiscale 3d Coupled Model Mortar Apparent Permeability Shale Gas
DOI10.1016/j.fuel.2017.05.052
Indexed BySCI ; EI
Language英语
WOS IDWOS:000403993400014
WOS KeywordGAS-TRANSPORT ; APPARENT PERMEABILITY ; SCALE MODELS ; PREDICTION ; NETWORKS ; FLOW
WOS Research AreaEnergy & Fuels ; Engineering
WOS SubjectEnergy & Fuels ; Engineering, Chemical
Funding OrganizationChinese Academy of Sciences(XDB10020302)||National Natural Science Foundation of China(41690132||Major National Science and Technology Special Program of China(2017ZX05037-001)||National Program on Key Basic Research Project (973 Program)(2014CB239004)||41574129)
DepartmentLMFS海洋环境与工程(LEM)
Classification一类
Ranking1
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/60631
Collection流固耦合系统力学重点实验室
Corresponding AuthorLin, M (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Cao GH,Lin M,Jiang WB,et al. A 3D coupled model of organic matter and inorganic matrix for calculating the permeability of shale[J]. FUEL,2017,204:129-143.
APA Cao GH.,林缅.,江文滨.,Li HS.,Yi ZX.,...&Lin, M .(2017).A 3D coupled model of organic matter and inorganic matrix for calculating the permeability of shale.FUEL,204,129-143.
MLA Cao GH,et al."A 3D coupled model of organic matter and inorganic matrix for calculating the permeability of shale".FUEL 204(2017):129-143.
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