Altmetric

Dynamic pore-scale reservoir-condition imaging of reaction in carbonates using synchrotron fast tomography

Title: Dynamic pore-scale reservoir-condition imaging of reaction in carbonates using synchrotron fast tomography
Authors: Menke, HP
Andrew, MG
Blunt, MJ
Bijlejic, B
Item Type: Journal Article
Abstract: Synchrotron fast tomography was used to dynamically image dissolution of limestone in the presence of CO2-saturated brine at reservoir conditions. 100 scans were taken at a 6.1 µm resolution over a period of 2 hours. Underground storage permanence is a major concern for carbon capture and storage. Pumping CO2 into carbonate reservoirs has the potential to dissolve geologic seals and allow CO2 to escape. However, the dissolution processes at reservoir conditions are poorly understood. Thus, time-resolved experiments are needed to observe and predict the nature and rate of dissolution at the pore scale. Synchrotron fast tomography is a method of taking high-resolution time-resolved images of complex pore structures much more quickly than traditional µ-CT . The Diamond Lightsource Pink Beam was used to dynamically image dissolution of limestone in the presence of CO2-saturated brine at reservoir conditions. 100 scans were taken at a 6.1 µm resolution over a period of 2 hours. The images were segmented and the porosity and permeability were measured using image analysis and network extraction. Porosity increased uniformly along the length of the sample; however, the rate of increase of both porosity and permeability slowed at later times.
Issue Date: 21-Feb-2017
Date of Acceptance: 5-Oct-2015
URI: http://hdl.handle.net/10044/1/29037
DOI: https://dx.doi.org/10.3791/53763
ISSN: 1940-087X
Publisher: Journal of Visualized Experiments (JoVE)
Journal / Book Title: Journal of Visualized Experiments
Volume: 120
Copyright Statement: Copyright © 2017 Creative Commons Attribution 3.0 License (https://creativecommons.org/licenses/by/3.0/)
Sponsor/Funder: Qatar Shell Research and Technology Center QSTP LLC
Qatar Petroleum
Funder's Grant Number: 490000724
N/A
Publication Status: Published
Article Number: e53763
Appears in Collections:Faculty of Engineering
Earth Science and Engineering



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Creative Commons