Blar i SINTEF Open på forfatter "Berntsen, Andreas Nicolas"
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Novel true triaxial apparatus applied to the study of sand mass production under anisotropic stress conditions.
Walle, Lars Erik; Berntsen, Andreas Nicolas; Papamichos, Euripides (Rock Mechanics for Natural Resources and Infrastructure Development (ISRM);2019, Chapter; Peer reviewed, 2019)Using a novel true triaxial setup, sand production tests on hollow quasi-cylinder Castlegate sandstone specimens have been performed on irreducible water saturated specimens with oil flow under varying levels of axial and ... -
Productivity Decline Mechanisms in Gravel Packed Perforations
Berntsen, Andreas Nicolas; Papamichos, Euripides; Xie, Xiyang; Li, Gang; Yao, Ziheng (Peer reviewed; Journal article, 2023)In a cased hole gravel pack completion, perforations are packed with proppant to both mechanically support the perforation cavity, and to filter any produced sand before it reaches the surface. Poor perforation packing ... -
Salt clogging during supercritical CO2 injection into a downscaled borehole model
Berntsen, Andreas Nicolas; Todorovic, Jelena; Raphaug, Martin Hagen; Torsæter, Malin; Chavez Panduro, Elvia Anabela; Gawel, Kamila (Journal article; Peer reviewed, 2019)Injection of CO2 into saline storage aquifers is often accompanied by drying of the formation water and salt precipitation. Subsequent salt clogging of a well bore and the near wellbore rock matrix may lead to injectivity ...