CO2 saturated brine injected into fractured shale: An X-ray micro-tomography in-situ analysis at reservoir conditions

Yu, H.; Zhang, Y.; Lebedev, M.; Wang, Z.; Ma, J.; Cui, Z.; Verrall, M.; Squelch, Andrew; Iglauer, S.

doi:10.1016/j.egypro.2018.11.021

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Access Status

Open access

Authors

Yu, H.

Zhang, Y.

Lebedev, M.

Wang, Z.

Ma, J.

Cui, Z.

Verrall, M.

Squelch, Andrew

Iglauer, S.

Date

2018

Type

Journal Article

Metadata

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Citation

Yu, H. and Zhang, Y. and Lebedev, M. and Wang, Z. and Ma, J. and Cui, Z. and Verrall, M. et al. 2018. CO2 saturated brine injected into fractured shale: An X-ray micro-tomography in-situ analysis at reservoir conditions. Energy Procedia. 154: pp. 125-130.

Source Title

Energy Procedia

DOI

10.1016/j.egypro.2018.11.021

ISSN

1876-6102

School

WASM: Minerals, Energy and Chemical Engineering (WASM-MECE)

Abstract

Fracture morphology and permeability are key factors in enhanced gas recovery (EOR) and Carbon Geo-storage (CCS) in shale gas reservoirs as they determine production and injection rates. However, the exact effect of CO2-saturated (live) brine on shale fracture morphology, and how the permeability changes during live brine injection and exposure is only poorly understood. We thus imaged fractured shale samples before and after live brine injection in-situ at high resolution in 3D via X-ray micro-computed tomography. Clearly, the fractures’ aperture and connectivity increased after live brine injection.

Except where otherwise noted, this item's license is described as http://creativecommons.org/licenses/by-nc-nd/4.0/