Imperial College London

ProfessorMartinBlunt

Faculty of EngineeringDepartment of Earth Science & Engineering

Chair in Petroleum Engineering
 
 
 
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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

@inproceedings{Akai:2020:e3sconf/202014604003,
author = {Akai, T and Bijeljic, B and Blunt, M},
doi = {e3sconf/202014604003},
title = {Local Capillary Pressure Estimation Based on Curvature of the Fluid Interface-Validation with Two-Phase Direct Numerical Simulations},
url = {http://dx.doi.org/10.1051/e3sconf/202014604003},
year = {2020}
}

RIS format (EndNote, RefMan)

TY  - CPAPER
AB - © The Authors, published by EDP Sciences, 2020. With the advancement of high-resolution three-dimensional X-ray imaging, it is now possible to directly calculate the curvature of the interface of two phases extracted from segmented CT images during two-phase flow experiments to derive capillary pressure. However, there is an inherent difficulty of this image-based curvature measurement: The use of voxelized image data for the calculation of curvature can cause significant errors. To address this, we first perform two-phase direct numerical simulations to obtain the oil and water phase distribution, the exact location of the interface, and local fluid pressure. We then investigate a method to compute curvature on the oil/water interface. The interface is defined in two ways. In one case the simulated interface which has a sub-resolution smoothness is used, while the other is a smoothed interface which is extracted from synthetic segmented data based on the simulated phase distribution. Computed mean curvature on these surfaces are compared with that obtained from the fluid pressure computed directly in the simulation. We discuss the accuracy of image-based curvature measurements for the calculation of capillary pressure and propose the best way to extract an accurate curvature measurement, quantifying the likely uncertainties.
AU - Akai,T
AU - Bijeljic,B
AU - Blunt,M
DO - e3sconf/202014604003
PY - 2020///
SN - 2555-0403
TI - Local Capillary Pressure Estimation Based on Curvature of the Fluid Interface-Validation with Two-Phase Direct Numerical Simulations
UR - http://dx.doi.org/10.1051/e3sconf/202014604003
ER -