Our research includes exploring fundamental pore scale fluid dynamics, developing digital rocks analysis techniques, increasing the accuracy of field scale reservoir simulation, and evaluating the feasibility of scaling up CO2 storage to climate relevant scales.
StrataTrapper Advanced Modelling of CO2 Migration and Trapping
THMC4CCS: ThorougH experiMental and numerical investigation of Coupled processes for geologiC Carbon Storage
@inproceedings{Liyanage:2017:10.1016/j.egypro.2017.03.1641,
author = {Liyanage, R and Crawshaw and Krevor and Pini, R},
doi = {10.1016/j.egypro.2017.03.1641},
pages = {4981--4985},
publisher = {Elsevier},
title = {Multidimensional Imaging of Density Driven Convection in a Porous Medium},
url = {http://dx.doi.org/10.1016/j.egypro.2017.03.1641},
year = {2017}
}
TY - CPAPER
AB - Carbon dioxide (CO2) sequestration is a climate change mitigation technique which relies on residual and solubility trapping in injection locations with saline aquifers. The dissolution of CO2 into resident brines results in density-driven convection which further enhances the geological trapping potential. We report on the use of an analogue fluid pair to investigate density-driven convection in 3D in an unconsolidated bead pack. X-ray computed tomography (CT) is used to image density-driven convection in the opaque porous medium non-invasively. Two studies have been conducted that differ by the Rayleigh number (Ra) of the system, which in this study is changed by altering the maximum density difference of the fluid pair. We observe the same general mixing pattern in both studies. Initially, many high density fingers move downward through the bead pack and as time progresses these coalesce and form larger dominate flow paths. However, we also observe that a higher Rayleigh number leads to the denser plume moving faster towards the bottom of the system. Due to the finite size of the system, this in turn leads to early convective shut-down.
AU - Liyanage,R
AU - Crawshaw
AU - Krevor
AU - Pini,R
DO - 10.1016/j.egypro.2017.03.1641
EP - 4985
PB - Elsevier
PY - 2017///
SN - 1876-6102
SP - 4981
TI - Multidimensional Imaging of Density Driven Convection in a Porous Medium
UR - http://dx.doi.org/10.1016/j.egypro.2017.03.1641
UR - http://hdl.handle.net/10044/1/51134
ER -