Dr Guijie Sang

Research Associate

Civil and Environmental Engineering

Contact

Personal statement

I am a Research Associate in the Department of Civil & Environmental Engineering. My research interests focus on microbially induced carbonate precipitation (MICP), transport in porous media, and geomechanics & geophysics. I am currently working on the project regarding optimization of injection protocols and pumping strategies for upscaling the MICP soil treatment technology from lab-scale to field-scale. This includes the understanding of bacterial transport in laboratory sand columns, achieving a homogeneous distribution of MICP, and eventually achieving a relatively homogeneous strength of the weak rock in the laboratory/field. I have a PhD in Energy and Mineral Engineering from Pennsylvania State University. My PhD research focused on hydromechanical properties of rocks, water vapor sorption/condensation, rock-CO2 interaction, etc.

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Publications

Meter-scale MICP improvement of medium graded very gravelly sands : lab measurement, transport modelling, mechanical and microstructural analysis
Sang Guijie, Lunn Rebecca J, El Mountassir Grainne, Minto James M
Engineering Geology Vol 324 (2023)
https://doi.org/10.1016/j.enggeo.2023.107275
Transport and fate of ureolytic Sporosarcina pasteurii in saturated sand columns: experiments and modelling
Sang Guijie, Lunn Rebecca J, El Mountassir Grainne, Minto James M
Transport in Porous Media Vol 149, pp. 599-624 (2023)
https://doi.org/10.1007/s11242-023-01973-x
Microbially induced calcite precipitation for sealing anhydrite fractures with gouges
Sang Guijie, Lunn Rebecca, Minto James M, El Mountassir Grainne
56th US Rock mechanics/Geomechanics Symposium (2022)
https://doi.org/10.56952/ARMA-2022-0277
Carbonate caprock–brine–carbon dioxide interaction : alteration of hydromechanical properties and implications on carbon dioxide leakage
Sang Guijie, Liu Shimin
SPE Journal Vol 26, pp. 2780–2792 (2021)
https://doi.org/10.2118/201353-PA
Unraveling high-pressure gas storage mechanisms in shale nanopores through SANS
Zhang Rui, Liu Shimin, Fan Long, Blach Tomasz P, Sang Guijie
Environmental Science: Nano Vol 8, pp. 2706-2717 (2021)
https://doi.org/10.1039/d1en00419k
Pore-scale water vapor condensation behaviors in shales : an experimental study
Sang Guijie, Liu Shimin, Elsworth Derek, Zhang Rui, Bleuel Markus
Transport in Porous Media Vol 135, pp. 713–734 (2020)
https://doi.org/10.1007/s11242-020-01497-8

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Professional Activities

Unconventional Resources (Journal)
Editorial board member
11/2022
Frontiers in Earth Sciences (Journal)
Guest editor
7/2022
International Journal of Rock Mechanics and Mining Sciences (Journal)
Peer reviewer
1/2022
Journal of Hydrology (Journal)
Peer reviewer
1/2022
Engineering Fracture Mechanics (Journal)
Peer reviewer
7/2021
Frontiers in Earth Science (Journal)
Peer reviewer
7/2021

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Projects

Bio-Grouting Applications in Long-Term Caprock Sealing for CO2 Sequestration
Sang, Guijie (Principal Investigator) Davis, Geo (Principal Investigator) Terziev, Momchil (Principal Investigator)
Geological CO2 storage is a promising strategy to mitigate the emission of greenhouse gases generated from traditional power stations and energy-intensive industries. Caprocks are layers of low-permeability and ultra-fine porosity, consisting of massive consolidated clay-rich sediments (shale) and evaporites such as anhydrite. When positioned above a potential storage reservoir rock (e.g. a high porosity sandstone) a caprock creates a capillary barrier that ensures the retention of CO2 in the reservoir. However, caprock can contain fractures, either naturally existing or artificially induced due to injection, that may provide preferential paths for CO2 escaping. Seeking an efficient technique to seal and strengthen caprock fractures is crucial. Our vision is to harness our multidisciplinary expertise to contribute to the UK’s 2050 Net Zero target by providing evidence for developing and delivering an effective bio-mediated grouting strategy for caprock sealing, thus ensuring long-term safe CO2 sequestration. The proposed project also aligns well with the upcoming COP26 remit to tackle global climate change by reducing greenhouse gas emissions.
01-Jan-2021 - 30-Jan-2022

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Contact

Dr Guijie Sang
Research Associate
Civil and Environmental Engineering

Email: guijie.sang@strath.ac.uk
Tel: Unlisted