Tuesday, June 17

3:15 PM-5:15 PM
Weavers Room

MS24
Estimating Nonlinear Properties in Models of Flow Through Porous Media

Equations for simulating many displacement processes in porous media are nonlinear partial differential equations. Several of the properties within the equations, such as relative permeabilities and capillary pressure for multiphase flow, are functions of one or more state (or dependent) variables. These properties are not measured directly, but may be estimated indirectly from measurements in the laboratory or field. This estimation problem poses a number of challenges, including selection of functional representations, solution of associated optimization problems, and selection of experimental designs for accurate estimates. The speakers in this minisymposium will present their recent work about estimating nonlinear properties from laboratory experiments.

Organizers: Jerome Jaffre,
INRIA, France;
and A. Ted Watson,
Texas A&M University

3:15 Functional Representation and Model Nonlinearity in Estimation of Porous Media Properties From Laboratory Data

Trond Mannseth and Jan-Erik Nordtvedt, RF - Rogaland Research, Norway; Kari Brusdal, Alv-Arne Grimstad, Kristofer Kolltveit, University of Bergen, Norway; and A. Ted Watson, Organizer

3:45 Characterizing Gas Desorption in Porous Media

A. Ted Watson, Organizer

4:15 Identification of Nonlinear Adsorption Isotherms from Breakthrough Column Experiments

Bodo Igler and Peter Knabner, University of Erlangen-Nuremberg, Germany

4:45 Automatic Estimation of Three-Phase Relative Permeabilities from Laboratory Experiments by Using a Least-Squares Method

Guy Chavent, Université Paris-Dauphine and INRIA, France; Jerome Jaffre, Organizer; and Sophie Jegou, Université Paris-Dauphine and INRIA, France

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