Swelling of Shales: A Multiscale Experimental Investigation

doi:10.1021/acs.energyfuels.7b01223

CORC > 武汉岩土力学研究所 > 中科院武汉岩土力学所 > 岩土力学所知识全产出 > 期刊论文

	Swelling of Shales: A Multiscale Experimental Investigation
	Hallais, Simon 1; Zhang, G. Q.2,3; Wang, L. L.2,3; Yang, D. S.4; Tanguy, A.1
刊名	ENERGY & FUELS
	2017
卷号	31 期号:10 页码:10442-10451
ISSN号	0887-0624
DOI	10.1021/acs.energyfuels.7b01223
英文摘要	Shale swelling can cause a series of problems during the exploitation of shale gas. However, because of the complex fabric of shale, a thorough understanding of shale swelling has not been gained. In this work, an experimental multiscale approach is employed to characterize the swelling properties of a shale sample from Sichuan basin of China. Wetting/drying tests are performed by environmental scanning electron microscopy (ESEM), and deformation of the material is measured by analyzing the ESEM micrographs using digital image correlation (DIC) techniques. Investigations are conducted at three distinct scales, enabling the macroscopic behavior to be linked to the microscopic mechanisms (e.g., the role of inclusions, the behavior of clay particles). The macroscopic swelling of the tested shale is less than 2%. This limited swelling is mainly due to the presence of nonswelling inclusions as well as the low swelling capacity of the clay inside the shale. Microcracking is evidenced along both the wetting and the drying paths. It is demonstrated that the clay particles swell rather undirectionally perpendicular to their orientation. Moreover, a preferred orientation of the clay particles is found parallel to the bedding plane, which finally leads to a moderate anisotropy of the macroscopic swelling.
WOS研究方向	Energy & Fuels ; Engineering
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000413710300015
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/4148]
专题	岩土力学所知识全产出_期刊论文国家重点实验室知识产出_期刊论文
作者单位	1.Ecole Polytech, UMR 7649, Lab Mecan Solides; 2.China Univ Petr, Coll Petr Engn; 3.China Univ Petr, State Key Lab Petr Resources & Prospecting; 4.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn
推荐引用方式 GB/T 7714	Hallais, Simon,Zhang, G. Q.,Wang, L. L.,et al. Swelling of Shales: A Multiscale Experimental Investigation[J]. ENERGY & FUELS,2017,31(10):10442-10451.
APA	Hallais, Simon,Zhang, G. Q.,Wang, L. L.,Yang, D. S.,&Tanguy, A..(2017).Swelling of Shales: A Multiscale Experimental Investigation.ENERGY & FUELS,31(10),10442-10451.
MLA	Hallais, Simon,et al."Swelling of Shales: A Multiscale Experimental Investigation".ENERGY & FUELS 31.10(2017):10442-10451.