Blar i Faculty of Science and Technology på tidsskrift "Computational Geosciences"
Viser treff 1-5 av 5
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Adaptive mesh refinement in locally conservative level set methods for multiphase fluid displacements in porous media
(Peer reviewed; Journal article, 2023)Multiphase flow in porous media often occurs with the formation and coalescence of fluid ganglia. Accurate predictions of such mechanisms in complex pore geometries require simulation models with local mass conservation ... -
Data assimilation with soft constraints (DASC) through a generalized iterative ensemble smoother
(Peer reviewed; Journal article, 2022)This work investigates an ensemble-based workflow to simultaneously handle generic, nonlinear equality and inequality constraints in reservoir data assimilation problems. The proposed workflow is built upon a recently ... -
A natural Hessian approximation for ensemble based optimization
(Peer reviewed; Journal article, 2023)A key challenge in reservoir management and other fields of engineering involves optimizing a nonlinear function iteratively. Due to the lack of available gradients in commercial reservoir simulators the attention over the ... -
A new formulation of the surface charge/surface potential relationship in electrolytes with valence less than three
(Peer reviewed; Journal article, 2023)Surface complexation models (SCMs) based on Gouy-Chapman theory are often used to describe adsorption of ions onto mineral surfaces. To compensate for the buildup of charge at a solid surface, the composition of the electric ... -
Probability elicitation using geostatistics in hydrocarbon exploration
(Peer reviewed; Journal article, 2021)The exploratory phase of a hydrocarbon field is a period when decision-supporting information is scarce while the drilling stakes are high. Each new prospect drilled brings more knowledge about the area and might reveal ...