Blar i NTNU Open på forfatter "Slotte, Per Arne"
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Collaborative optimization by shared objective function data
Angga, I Gusti Agung Gede; Bellout, Mathias; Bergmo, Per Eirik Strand; Slotte, Per Arne; Berg, Carl Fredrik (Peer reviewed; Journal article, 2022)This article presents a collaborative algorithmic framework that is effective for solving a multi-task optimization scenario where the evaluation of their objectives consists of two parts: The first part involves a common ... -
Contact Angles in Two-Phase Flow Images
Hosseinzade Khanamiri, Hamid; Slotte, Per Arne; Berg, Carl Fredrik (Peer reviewed; Journal article, 2020)In this work, we calculate contact angles in X-ray tomography images of two-phase flow in order to investigate the wettability. Triangulated surfaces, generated using the images, are smoothed to calculate the contact angles. ... -
Description of Free Energy for Immiscible Two‐Fluid Flow in Porous Media by Integral Geometry and Thermodynamics
Khanamiri, Hamid Hosseinzade; Berg, Carl Fredrik; Slotte, Per Arne; Schlüter, Steffen; Torsæter, Ole (Journal article; Peer reviewed, 2018)In integral geometry, intrinsic volumes are a set of geometrical variables to characterize spatial structures, for example, distribution of fluids in two‐fluid flow in porous media. McClure et al. (2018, https://doi.org/ ... -
Effect of CO2 tax on energy use in oil production: waterflooding optimization under different emission costs
Angga, I Gusti Agung Gede; Bellout, Mathias; Kristoffersen, Brage Strand; Bergmo, Per Eirik Strand; Slotte, Per Arne; Berg, Carl Fredrik (Peer reviewed; Journal article, 2022)Tackling emissions from hydrocarbon production is a necessity because hydrocarbon production will last for a prolonged time. As a popular hydrocarbon production method, waterflooding operation is energy-intensive and ... -
Geometrically derived efficiency of slow immiscible displacement in porous media
Berg, Carl Fredrik; Slotte, Per Arne; Hosseinzade Khanamiri, Hamid (Peer reviewed; Journal article, 2020)The efficiency of a displacement is the fraction of applied work over the change in free energy. This displacement efficiency is essential for linking wettability to applied work during displacement processes. We quantify ... -
Modeling of fractured producer and injection in low permeability reservoir
Salamanca, Marina Sacramento (Master thesis, 2013)Modeling of fractured producer and injection well in low permeability reservoir -
Predicting Resistivity and Permeability of Porous Media Using Minkowski Functionals
Slotte, Per Arne; Berg, Carl Fredrik; Hosseinzade Khanamiri, Hamid (Journal article; Peer reviewed, 2019)Permeability and formation factor are important properties of a porous medium that only depend on pore space geometry, and it has been proposed that these transport properties may be predicted in terms of a set of geometric ... -
Simulating water and gas flooding in low NTG fluvial and similar high contrast environments.
Tambovtsev, Vadim (Master thesis, 2017)The effect of grid resolution and upscaling on the simulated effect of water and gas flooding in high contrast low NTG reservoirs was investigated. The majority-rule relperm upscaling with volumetric average upscaling and ... -
Simulation of CO2 Injection in a Reservoir with an Underlying Paleo Residual Oil Zone
Tadesse, Nathaniel Solomon (Master thesis, 2018)Paleo residual oil zones (PROZs) are zones below the oil-water contact (OWC) that contain residual oil. These types of zones exist in many fields around the world, but is often given little attention, due to traditionally ... -
Simulation of Wells with Fishbones using ECLIPSE
Klovning, Carl-Ivar (Master thesis, 2016)Fishbones is a new stimulation technology that aims to provide hydraulic fracturing like stimulation while also leaving the operator in full control of the stimulation process. The technology creates up to several hundred ... -
A statistical mechanics framework for immiscible and incompressible two-phase flow in porous media
Hansen, Alex; Flekkøy, Eirik Grude; Sinha, Santanu; Slotte, Per Arne (Peer reviewed; Journal article, 2022)We construct a statistical mechanics for immiscible and incompressible two-phase flow in porous media under local steady-state conditions based on the Jaynes maximum entropy principle. A cluster entropy is assigned to our ... -
The Effect of Small-Scale Heterogeneities on the Gas Distribution in the Tubåen Formation through Upscaling of CO2-Brine Relative Permeability
Berge, Sofie Annesdotter Svartdal (Master thesis, 2017)The Tubåen Formation in the Norwegian Sea is an aquifer and was used by Statoil ASA as the injection reservoir for CO2 separated from produced gas at Snøhvit in the time period between April 2008 until it was abandoned in ...