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Multiscale pore-fracture hybrid pore network modeling for drainage in tight carbonate

文献类型：期刊论文

作者Xu ZP(徐志朋); Lin M(林缅); Ji LL(姬莉莉); Jiang WB(江文滨); Cao GH(曹高辉); Xu, Leige
刊名ADVANCES IN WATER RESOURCES
出版日期2023-04
卷号174页码:104420
关键词Multiscale pores Fractures Multiscale hybrid pore network modeling Two-phase flow Tight carbonate
ISSN号0309-1708
DOI10.1016/j.advwatres.2023.104420
英文摘要Tight carbonate possesses both fractures and multiscale pores. Flow through tight carbonate rocks involves several length scales and the complicated flow physics. Capturing and modeling the entire void space into a single pore network model for drainage is challenging. Here, we present a novel method for modeling of a multiscale pore-fracture hybrid pore network, which enables various void spaces at multiple length scales and the flow characteristics in them to be included. Pores and fractures in a low-resolution CT image are extracted by medial axis-maximal ball algorithm and medial surface algorithm, respectively, to generate a pore-fracture hybrid pore network. Then, a statistics-based small-scale stochastic pore network is established in the CT image solid domains to represent the micropores unresolved by the image. The two pore networks are organically integrated into a multiscale hybrid pore network by cross-scale connections. The statistics of small-scale pore network are determined by experimental permeability. We study the effects of the small-scale pore network density on connectivity, single-and two-phase flow properties of the model to obtain the robust parameter. The influence of fractures on two-phase flow properties is analyzed. Results show the significance of incorporating fractures and micropores in the model. The model is validated via comparison between simulation result and experimental data. This method can accurately, efficiently, conveniently construct multiscale pore-fracture hybrid pore network of tight carbonate rock for evaluating the drainage characteristics.
分类号二类/Q1
WOS研究方向WOS:000964264800001
语种英语
资助机构National Natural Science Foundation of China [41574129] ; National Natural Science Founda-tion of China [41690132] ; Strategic Priority Research Program of the Chinese Academy of Sciences [XDA14010304] ; Major National Science and Technology Special Program of China [2017ZX05037-001]
其他责任者Lin, M
源URL[http://dspace.imech.ac.cn/handle/311007/92238]  
专题力学研究所_流固耦合系统力学重点实验室(2012-)
作者单位1.(Xu Zhipeng, Xu Leige) North China Univ Water Resources & Elect Power Sch Civil Engn & Commun Zhengzhou 450045 Peoples R China
2.(Lin Mian, Ji Lili, Jiang Wenbin) Univ Chinese Acad Sci Sch Engn Sci Beijing 100049 Peoples R China
3.(Lin Mian, Ji Lili, Jiang Wenbin, Cao Gaohui) Chinese Acad Sci Inst Mech Beijing 100190 Peoples R China
推荐引用方式
GB/T 7714		 Xu ZP,Lin M,Ji LL,et al. Multiscale pore-fracture hybrid pore network modeling for drainage in tight carbonate[J]. ADVANCES IN WATER RESOURCES,2023,174:104420.
APA 徐志朋,林缅,姬莉莉,江文滨,曹高辉,&Xu, Leige.(2023).Multiscale pore-fracture hybrid pore network modeling for drainage in tight carbonate.ADVANCES IN WATER RESOURCES,174,104420.
MLA 徐志朋,et al."Multiscale pore-fracture hybrid pore network modeling for drainage in tight carbonate".ADVANCES IN WATER RESOURCES 174(2023):104420.

入库方式： OAI收割

来源：力学研究所

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