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Pore-scale Imaging and Characterization of Hydrocarbon Reservoir Rock Wettability at Subsurface Conditions Using X-ray Microtomography
Published on: October 21, 2018
Prediction of solid-water-hydrocarbon contact angle.
Alireza Bahramian1, Ali Danesh
1Institute of Petroleum Engineering, University of Tehran, Tehran, Iran. abahram@ut.ac.ir
Journal of Colloid and Interface Science
|April 6, 2007
Summary
This study validates new models for predicting interfacial tension, crucial for understanding liquid-vapor and liquid-liquid interactions. The models accurately forecast interfacial tension and contact angles, demonstrating their reliability in diverse chemical systems.
Area of Science:
- Physical Chemistry
- Surface Science
- Chemical Engineering
Background:
- Interfacial tension is critical in multiphase systems.
- Accurate prediction models are needed for engineering applications.
- Existing models require validation for diverse conditions.
Purpose of the Study:
- To investigate the reliability of new solid-vapor and solid-liquid interfacial tension models.
- To assess the impact of molecular packing and orientation on predictions.
- To develop and validate a new equation for water-hydrocarbon interfacial tension.
Main Methods:
- Applied solid-vapor and solid-liquid models to predict liquid-vapor and liquid-liquid interfacial tension.
- Utilized mutual solubility data to calculate interaction parameters.
- Developed a new equation for water-hydrocarbon interfacial tension.
- Tested the models on systems including water-methane-n-decane and mercury-water-benzene.
Main Results:
- The models accurately predict liquid-vapor and liquid-liquid interfacial tension.
- Molecular geometry and orientation significantly influence predicted values.
- A new equation effectively predicts water-hydrocarbon interfacial tension.
- The solid-liquid model accurately predicts contact angles for tested systems.
Conclusions:
- The developed interfacial tension models demonstrate high reliability.
- The models are suitable for predicting interfacial phenomena in complex mixtures.
- The new equation offers improved accuracy for water-hydrocarbon systems.
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