Imperial College London
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ProfessorMartinBlunt

Faculty of Engineering, Department of Earth Science & Engineering

Chair in Flow in Porous Media
 
 
 
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Contact

 

+44 (0)20 7594 6500m.blunt Website

 
 
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Location

 

2.38ARoyal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Al-Khulaifi:2017:10.1016/j.ijggc.2017.11.011,
author = {Al-Khulaifi, Y and Lin, Q and Blunt, MJ and Bijeljic, B},
doi = {10.1016/j.ijggc.2017.11.011},
journal = {International Journal of Greenhouse Gas Control},
pages = {99--111},
title = {Reservoir-condition pore-scale imaging of dolomite reaction with supercritical CO<inf>2</inf>acidified brine: Effect of pore-structure on reaction rate using velocity distribution analysis},
url = {http://dx.doi.org/10.1016/j.ijggc.2017.11.011},
volume = {68},
year = {2017}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - To investigate the impact of rock heterogeneity and flowrate on reaction rates and dissolution dynamics, four millimetre-scale Silurian dolomite samples were pre-screened based on their physical heterogeneity, defined by the simulated velocity distributions characterising each flow field. Two pairs of cores with similar heterogeneity were flooded with supercritical carbon-dioxide (scCO 2 ) saturated brine under reservoir conditions, 50 °C and 10 MPa, at a high (0.5 ml/min) and low (0.1 ml/min) flowrate. Changes to the pore structure brought about by dissolution were captured in situ using X-ray microtomography (micro-CT) imaging. Mass balance from effluent analysis sh owed a good agreement with calculations from imaging. Image calculated reaction rates (r eff ) were 5-38 times lower than the corresponding batch reaction rate under the same conditions of temperature and pressure but without mass transfer limitations. For both high (Péclet number = 2600-1200) and low (Péclet number = 420-300) flow rates, an impact of the initial rock heterogeneity was observed on both reaction rates and permeability-porosity relationships.
AU  - Al-Khulaifi,Y
AU  - Lin,Q
AU  - Blunt,MJ
AU  - Bijeljic,B
DO  - 10.1016/j.ijggc.2017.11.011
EP  - 111
PY  - 2017///
SN  - 1750-5836
SP  - 99
TI  - Reservoir-condition pore-scale imaging of dolomite reaction with supercritical CO<inf>2</inf>acidified brine: Effect of pore-structure on reaction rate using velocity distribution analysis
T2  - International Journal of Greenhouse Gas Control
UR  - http://dx.doi.org/10.1016/j.ijggc.2017.11.011
UR  - http://hdl.handle.net/10044/1/54922
VL  - 68
ER  -
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