title: Model fit to experimental data for foam-assisted deep vadose zone remediation.
abstract: This study investigates how a foam model, developed in Roostapour and Kam [1], can be applied to make a fit to a set of existing laboratory flow experiments in an application relevant to deep vadose zone remediation. This study reveals a few important insights regarding foam-assisted deep vadose zone remediation: (i) the mathematical framework established for foam modeling can fit typical flow experiments matching wave velocities, saturation history, and pressure responses; (ii) the set of input parameters may not be unique for the fit, and therefore conducting experiments to measure basic model parameters related to relative permeability, initial and residual saturations, surfactant adsorption and so on should not be overlooked; and (iii) gas compressibility plays an important role for data analysis, thus should be handled carefully in laboratory flow experiments. Foam kinetics, causing foam texture to reach its steady-state value slowly, may impose additional complications.
authors.affiliation: Craft and Hawkins Department of Petroleum Engineering, Louisiana State University, United States.
authors.forename: A
authors.initials: A
authors.lastname: Roostapour
authors.affiliation: Rural Research Institute, Korea Rural Community Corporation, Republic of Korea.
authors.forename: G
authors.initials: G
authors.lastname: Lee
authors.affiliation: Pacific Northwest National Laboratory, United States.
authors.forename: L
authors.initials: L
authors.lastname: Zhong
authors.affiliation: Craft and Hawkins Department of Petroleum Engineering, Louisiana State University, United States. Electronic address: kam@lsu.edu.
authors.forename: S I
authors.initials: SI
authors.lastname: Kam
mesh_terms: D052918:Environmental Restoration and Remediation; D008962:Models, Theoretical
keywords: Deep vadose zone; Foams; Fractional flow method; Remediation