230 citations · 480 across the 11 of their papers we have counts for
11 papers
Data Assimilation for Combined Parameter and State Estimation in Stochastic Continuous-Discrete Nonlinear Systems
Tarek Diaa-Eldeen, Marcus Krogh Nielsen, Carl Fredrik Berg +2
Data assimilation (DA) provides a general framework for estimation in dynamical systems based on the concepts of Bayesian inference. This constitutes a common basis for the differe…
Percolation and conductivity in evolving disordered media
Carl Fredrik Berg, Muhammad Sahimi
Percolation theory and the associated conductance networks have provided deep insights into the flow and transport properties of a vast number of heterogeneous materials and media.…
Relative permeability as a stationary process: energy fluctuations in immiscible displacement
James E. McClure, Ming Fan, Steffen Berg +4
Relative permeability is commonly used to model immiscible fluid flow through porous materials. In this work we derive the relative permeability relationship from conservation of e…
Industrial applications of digital rock technology
Carl Fredrik Berg, Olivier Lopez, Håvard Berland
This article provides an overview of the current state of digital rock technology, with emphasis on industrial applications. We show how imaging and image analysis can be applied f…
Rate Dependency in Steady-State Upscaling
Lars Hov Odsæter, Carl Fredrik Berg, Alf Birger Rustad
Steady-state upscaling of relative permeability is studied for a range of reservoir models. Both rate-dependent upscaling and upscaling in the capillary and viscous limits are cons…
Permeability Description by Characteristic Length, Tortuosity, Constriction and Porosity
Carl Fredrik Berg
In this article we investigate the permeability of a porous medium as given in Darcy's law. The permeability is described by an effective hydraulic pore radius in the porous medium…