ArticleProceedings of the National Academy of Sciences of the United States of America2018
Wettability in complex porous materials, the mixed-wet state, and its relationship to surface roughness.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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Who cites it
18 citing papers in PubMed.
- Precise molecular sieving in polycrystalline covalent organic framework membranes.Science advances · 2026Article
- Development and evaluation of sustainable ionic liquid-based surfactant formulations for EOR in high-temperature, high-salinity, low-permeability carbonate reservoirs.Scientific reports · 2026Article
- A deterministic platform for engineering interfacial phenomena in porous media using artificially structured rough surfaces.Scientific reports · 2026Article
- Pore-Scale Imaging to Quantify the Evolution and Reduction in Trapped COEnvironmental science & technology · 2025Article
- Hydrothermal Synthesis of γ‑AlACS omega · 2025Article
- A Comprehensive Review of Slag-Coating Mechanisms in Blast-Furnace Staves: Furnace Profile Optimization and Material-Structure Design.Materials (Basel, Switzerland) · 2025Review
- Experimental Investigation of the Impact of Mixed Wettability on Pore-Scale Fluid Displacement: A Microfluidic Study.ACS applied materials & interfaces · 2024Article
- Article
- Sustainable Wax Coatings Made from Pine Needle Extraction Waste for Nanopaper Hydrophobization.Membranes · 2022Article
- Understanding the role of wettability distribution on pore-filling and displacement patterns in a homogeneous structure via quasi 3D pore-scale modelling.Scientific reports · 2021Article
- Pore-scale imaging and analysis of low salinity waterflooding in a heterogeneous carbonate rock at reservoir conditions.Scientific reports · 2021Article
- Fabrication of a Novel Protein Sponge with Dual-Scale Porosity and Mixed Wettability Using a Clean and Versatile Microwave-Based Process.Materials (Basel, Switzerland) · 2021Article
- Three-phase flow displacement dynamics and Haines jumps in a hydrophobic porous medium.Proceedings. Mathematical, physical, and engineering sciences · 2020Article
- Dynamics of fluid displacement in mixed-wet porous media.Proceedings. Mathematical, physical, and engineering sciences · 2020Article
- Coupled fine-scale modeling of the wettability effects: Deformation and fracturing.Physics of fluids (Woodbury, N.Y. : 1994) · 2020Article
- Pore-Scale Modeling of Fluid-Fluid Interfacial Area in Variably Saturated Porous Media Containing Microscale Surface Roughness.Water resources research · 2020Article
- Quantification of Uncertainty and Best Practice in Computing Interfacial Curvature from Complex Pore Space Images.Materials (Basel, Switzerland) · 2019Article
- Probing the 3D molecular and mineralogical heterogeneity in oil reservoir rocks at the pore scale.Scientific reports · 2019Article
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
A quantitative in situ characterization of the impact of surface roughness on wettability in porous media is currently lacking. We use reservoir condition micrometer-resolution X-ray tomography combined with automated methods for the measurement of contact angle, interfacial curvature, and surface roughness to examine fluid/fluid and fluid/solid interfaces inside a porous material. We study oil and water in the pore space of limestone from a giant producing oilfield, acquiring millions of measurements of curvature and contact angle on three millimeter-sized samples. We identify a distinct wetting state with a broad distribution of contact angle at the submillimeter scale with a mix of water-wet and water-repellent regions. Importantly, this state allows both fluid phases to flow simultaneously over a wide range of saturation. We establish that, in media that are largely water wet, the interfacial curvature does not depend on solid surface roughness, quantified as the local deviation from a plane. However, where there has been a significant wettability alteration, rougher surfaces are associated with lower contact angles and higher interfacial curvature. The variation of both contact angle and interfacial curvature increases with the local degree of roughness. We hypothesize that this mixed wettability may also be seen in biological systems to facilitate the simultaneous flow of water and gases; furthermore, wettability-altering agents could be used in both geological systems and material science to design a mixed-wetting state with optimal process performance.
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