A modified true triaxial apparatus for measuring mechanical properties of sandstone coupled with CO2-H2O biphase fluid

doi:10.1002/ghg.1637

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

	A modified true triaxial apparatus for measuring mechanical properties of sandstone coupled with CO2-H2O biphase fluid
	Liu, Mingze; Hu, Shaobin; Li, Xiaochun; Bai, Bing; Shi, Lu; Wu, Haiqing
刊名	GREENHOUSE GASES-SCIENCE AND TECHNOLOGY
	2017
卷号	7 期号:1 页码:78-91
关键词	CO2-H2O biphase fluid true triaxial experiment mechanical mechanism effective stress
ISSN号	2152-3878
DOI	10.1002/ghg.1637
英文摘要	Mechanical behaviors of rock under biphase or multiphase fluids conditions are key scientific issues currently in geomechanics and geotectonics. In this work, we conducted a series of triaxial experiments using a semipermeable separator method to form a specific composition pressure; we comparatively investigated the mechanical behaviors of sandstone in the conditions of monophase fluids CO2/N-2/H2O and biphase fluid CO2-H2O; and we analyzed the strength, elasticity modulus and brittleness of sandstones at different porous fluid conditions. The results showed that the selective adsorption of mineral compositions of sandstone on CO2/N-2/H2O has obvious effects on mechanical behaviors. The linear elastic modulus of CO2-H2O coupled sandstone was slightly greater than that of H2O-bearing sandstone, but significantly less than that of CO2- or N-2-bearing sandstone. Compared to H2O, CO2 or N-2 containing sandstones are mainly subjected to the brittle failure and exhibit no obvious plastic deformation. Overall, the study analyzed the mechanisms of physicochemical interactions of fluid with sandstone minerals from the micro-scales, and revealed the mechanicalmechanism between fluids and mineral particles, and established a new effective stress model of sandstone under CO2-H2O biphase condition. (c) 2016 Society of Chemical Industry and John Wiley & Sons, Ltd.
WOS研究方向	Energy & Fuels ; Engineering ; Environmental Sciences & Ecology
语种	英语
出版者	WILEY PERIODICALS, INC
WOS记录号	WOS:000394673200008
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/4015]
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	Chinese Acad Sci, State Key Lab Geomech & Geotech Engn
推荐引用方式 GB/T 7714	Liu, Mingze,Hu, Shaobin,Li, Xiaochun,et al. A modified true triaxial apparatus for measuring mechanical properties of sandstone coupled with CO2-H2O biphase fluid[J]. GREENHOUSE GASES-SCIENCE AND TECHNOLOGY,2017,7(1):78-91.
APA	Liu, Mingze,Hu, Shaobin,Li, Xiaochun,Bai, Bing,Shi, Lu,&Wu, Haiqing.(2017).A modified true triaxial apparatus for measuring mechanical properties of sandstone coupled with CO2-H2O biphase fluid.GREENHOUSE GASES-SCIENCE AND TECHNOLOGY,7(1),78-91.
MLA	Liu, Mingze,et al."A modified true triaxial apparatus for measuring mechanical properties of sandstone coupled with CO2-H2O biphase fluid".GREENHOUSE GASES-SCIENCE AND TECHNOLOGY 7.1(2017):78-91.