Efficiently engineering pore-scale processes: The role of force dominance and topology during nonwetting phase trapping in porous media

• Published in: Advances in water resources Vol. 79; pp. 91 - 102
• Main Authors: Herring, Anna L., Andersson, Linnéa, Schlüter, Steffen, Sheppard, Adrian, Wildenschild, Dorthe
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.05.2015
• Subjects: Capillarity; CO2 sequestration; Dominance; Force balance; Media; Nonwetting phase trapping; Pore-scale; Porous media; Saturation; Three dimensional; Topology; Trapping; X-ray microtomography; CO2 sequestration; Pore-scale; Force balance; Topology; Nonwetting phase trapping; X-ray microtomography

•We investigate residual trapping of nonwetting (NW) phase (air) in sandstone cores.•We describe initial air configurations with connectivity metrics.•Factors influencing trapping are a function of dominant pore-scale forces.•Trapping efficiency decreases as initial air connectivity increases.•Pore-...