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

Authors

Hongyan Yu
Yihuai Zhang
Maxim Lebedev
Zhenliang Wang
Jinfeng Ma
Zhihao Cui
Michael Verrall
Andrew Squelch
Stefan Iglauer, Edith Cowan UniversityFollow

Document Type

Conference Proceeding

Publication Title

Energy Procedia

Publisher

Elsevier

School

School of Engineering

RAS ID

29530

Comments

Yu, H., Zhang, Y., Lebedev, M., Wang, Z., Ma, J., Cui, Z., ... Iglauer, S. (2018). CO2 saturated brine injected into fractured shale: An X-ray micro-tomography in-situ analysis at reservoir conditions. Energy Procedia, 154, 125-130. Available here

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.

Additional Information

Paper presented at the Applied Energy Symposium and Forum, Carbon Capture, Utilization and Storage, CCUS 2018, 27–29 June 2018, Perth, Australia

DOI

10.1016/j.egypro.2018.11.021

Creative Commons License

This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.