气候变化领域集成服务门户(CCPortal): Pore-Scale 3D Dynamic Modeling and Characterization of Shale Samples: Considering the Effects of Thermal Maturation

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DOI	10.1029/2019JB018309
	Pore-Scale 3D Dynamic Modeling and Characterization of Shale Samples: Considering the Effects of Thermal Maturation
	Wu Y.; Tahmasebi P.; Yu H.; Lin C.; Wu H.; Dong C.
发表日期	2020
ISSN	21699313
卷号	125 期号:1
英文摘要	The development of shale gas necessitates accurate modeling and characterization of these complicated formations, at both small and large scales. At the small scale, the studies based on experimental techniques have uncovered that the components and pore types in shales vary dramatically. Several pore types are identified and varied when the thermal maturation of shales changes. Therefore, accurate modeling and characterization of shale samples require taking such dynamic variations into consideration. This study presents a novel, dynamic, and three-dimensional (3D) modeling technique considering pore-system variation when the thermal maturation changes. The technique can construct dynamic shale models based on quartet structure generation set algorithm and morphological operation. This method can include various elements available in the shale samples in a very accurate way when the dynamic processes are reproduced. To evaluate the performance of the presented technique, 12 dynamic 3D shale models of three cases are constructed. These models are then characterized by analyzing the fractions of components and pores, pore and throat size distributions, coordination number distribution, fractal dimension, and tortuosity. Besides, gas transport in these dynamic 3D shale models is also simulated using pore network modeling to demonstrate the permeability variation of these models. Moreover, the fractions of interparticle and intraparticle pores and cementation degree are changed to further illustrate the capability of the developed algorithm. This study reveals such a dynamic modeling technique is a robust tool to construct various porous media with complicated elements and pores, which is not limited to shale samples. ©2019. American Geophysical Union. All Rights Reserved.
英文关键词	Pore network modeling; Pore system; Shale; Shale permeability; Thermal maturation
语种	英语
来源期刊	Journal of Geophysical Research: Solid Earth
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/188054
作者单位	School of Geosciences, China University of Petroleum, Qingdao, China; Department of Petroleum Engineering, University of Wyoming, Laramie, WY, United States; CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, CAS Center for Excellence in Complex System Mechanics, University of Science and Technology of China, Hefei, China
推荐引用方式 GB/T 7714	Wu Y.,Tahmasebi P.,Yu H.,et al. Pore-Scale 3D Dynamic Modeling and Characterization of Shale Samples: Considering the Effects of Thermal Maturation[J],2020,125(1).
APA	Wu Y.,Tahmasebi P.,Yu H.,Lin C.,Wu H.,&Dong C..(2020).Pore-Scale 3D Dynamic Modeling and Characterization of Shale Samples: Considering the Effects of Thermal Maturation.Journal of Geophysical Research: Solid Earth,125(1).
MLA	Wu Y.,et al."Pore-Scale 3D Dynamic Modeling and Characterization of Shale Samples: Considering the Effects of Thermal Maturation".Journal of Geophysical Research: Solid Earth 125.1(2020).