期刊论文

He, Y

英文

Minerals

2075-163X

2023

13

11

1387-

10.3390/min13111387

Conceptualization, S.Z. and L.Z.; methodology, L.Z.; software, S.Z.; validation, Z.S., Y.H. and L.Z.; formal analysis, L.Z.; investigation, Y.H.; resources, Z.S.; data curation, Z.S.; writing—original draft preparation, Z.S.; writing—review and editing, Q.R. and Z.Z.; visualization, S.Z.; supervision, Y.H.; project administration, Y.H.; funding acquisition, Y.H. All authors have read and agreed to the published version of the manuscript. This research was funded by the Natural Science Foundation of Hunan Province (Grant no 2020JJ5494, 2023JJ40546), the research project of the Education Department of Hunan Province (Grant no 21A0264), and the State Key Laboratory of Safety and Health for Metal Mines (2021-JSKSSYS-08).

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The interaction between shale and various fluids is crucial as it modifies pore structures, which govern the effective development of shale gas and the geological storage of carbon dioxide in shale formations. In this study, samples from the Longmaxi Formation shale in Sichuan Basin of China were exposed to different fluids, including 6 MPa CO2, 12 MPa CO2, 6 MPa CO2+brine, and 12 MPa CO2+brine, at 45 degrees C for 100 days. Various methods, including X-ray diffraction (XRD), X-ray fluorescence (XRF), field-emission scanning electron microscopy (FESEM), and the low-pressure gas adsorption (N-2...