Differential imaging-based porous plate measurements of fluid distribution and capillary pressure during drainage in a multiscale oolitic limestone
File(s)
Published version
Author(s)
Type
Journal Article
Abstract
Using a combination of a porous plate, micro-computed tomography, and differential imaging, the differential imaging porous plate (DIPP) method was employed to monitor spatial fluid distribution and measure capillary pressure between oil and water in an oolitic limestone, Ketton. Based on geological interpretation, mercury intrusion capillary pressure (MICP), and scanning electron microscopy (SEM), the pores were classified into macropores, intermediate-size pores, and micropores. Macropores are formed by the intergranular packing of ooid spheres, micropores are found within the intragranular porosity of the ooids, and intermediate-size pores arise from interstitial particles filling the macropores. This multiscale classification was validated by observing the fluid distribution patterns during drainage. A comparison with MICP showed that DIPP tends to yield lower capillary pressure values even after correction for fluid properties, consistent with previous studies on laminated sandstones. The results suggest that porous plate measurements using oil and water provide a more representative characterization of capillary pressure than MICP.
Date Issued
2025-05-01
Date Acceptance
2025-03-17
Citation
Transport in Porous Media, 2025, 152 (5)
ISSN
0169-3913
Publisher
Springer
Journal / Book Title
Transport in Porous Media
Volume
152
Issue
5
Copyright Statement
© The Author(s) 2025 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
License URL
Subjects
Capillary pressure
CONTACT-ANGLE
Drainage
Engineering
Engineering, Chemical
Limestone
MEDIA
MERCURY
Porous plate
SALINITY
Science & Technology
Technology
X-ray imaging
Publication Status
Published
Article Number
34
Date Publish Online
2025-04-16