Blar i UiS Brage på forfatter "Nermoen, Anders"
-
Assessment of a mature hydrocarbon field in SE Czech Republic for a CO2 storage pilot
Hladik, Vit; Opletal, Vladimir; Berenblyum, Roman; Porzer, Michal Matloch; Prochac, Robert; Shchipanov, Anton; Nermoen, Anders; Ford, Eric Patrick (Lecture, 2022)Preparation and execution of a CO2 storage pilot project is one of the first logical steps in the effort to kick-start CCS in the region of Central & Eastern Europe, utilizing onshore geological structures for permanent ... -
Effect of Initial Wettability on Rock Mechanics and Oil Recovery: Comparative Study on Outcrop Chalks
Sachdeva, Jaspreet Singh; Nermoen, Anders; Korsnes, Reidar Inge; Madland, Merete Vadla (Peer reviewed; Journal article, 2020)Brines containing surface-active divalent ions such as Ca2+, Mg2+ and SO42− impact the stiffness, strength and time-dependent deformation of water wet Mons outcrop chalk. This study documents how stiffness and strength of ... -
Evaluation of the compositional changes during flooding of reactive fluids using scanning electron microscopy, nano-secondary ion mass spectrometry, x-ray diffraction, and whole-rock geochemistry
Zimmermann, Udo; Madland, Merete Vadla; Nermoen, Anders; Hildebrand-Habel, Tania; Bertolino, Silvana A.R.; Hiort, Aksel; Korsnes, Reidar; Audinot, Jean-Nicolas; Grysan, Patrick (Journal article; Peer reviewed, 2015-05)Outcrop chalk of late Campanian age (Gulpen Formation) from Liège (Belgium) was flooded with MgCl2 in a triaxial cell for 516 days under reservoir conditions to understand how the non-equilibrium nature of the fluids altered ... -
How stress and temperature conditions affect rock-fluid chemistry and mechanical deformation
Nermoen, Anders; Korsnes, Reidar I.; Aursjø, Olav; Madland, Merete V.; Kjørslevik, Trygve A.C.; Østensen, Geir (Journal article; Peer reviewed, 2016-03)We report the results from a series of chalk flow-through-compaction experiments performed at three effective stresses (0.5, 3.5, and 12.3MPa) and two temperatures (92 and 130◦C). The results show that both stress and ... -
Incorporating electrostatic effects into the effective stress relation — Insights from chalk experiments
Nermoen, Anders; Korsnes, Reidar Inge; Storm, Eirik V.; Stødle, Trond; Madland, Merete Vadla; Fabricius, Ida Lykke (Journal article; Peer reviewed, 2018-01)Which forces are responsible for holding highly porous chalks together? We use the effective stress to quantify the electrostatic effects around particle contacts originating from the adsorption of ions onto charged mineral ... -
A laboratory scale approach to wettability restoration in chalk core samples
Sachdeva, Jaspreet Singh; Sripal, Edison A.; Nermoen, Anders; Korsnes, Reidar Inge; Madland, Merete Vadla; James, Lesley A. (Peer reviewed; Journal article, 2019)Wettability in chalk has been studied comprehensively to understand fluid flow mechanisms impacting coreflooding experiments. Wettability becomes paramount in understanding the parameters influencing chalk-fluid interactions. ... -
Porosity and permeability development in compacting chalks during flooding of nonequilibrium brines: Insights from long-term experiment
Nermoen, Anders; Korsnes, Reidar I.; Madland, Merete V.; Hiort, Aksel (Journal article; Peer reviewed, 2015-05)We report the complete chemical alteration of a Liège outcrop chalk core resulting from a 1072 flow-through experiment performed during mechanical compaction at 130°C. Chemical rock-fluid interactions alter the volumetric ... -
Porosity Evolution during Chemo-Mechanical Compaction
Nermoen, Anders (Chapter, 2018)This chapter presents the constitutive equations necessary to interpret laboratory and field data when both solid and pore volume evolve through time due to chemical and mechanical processes. The equations for the porosity ... -
Streaming potential - qualification of method and investigating the impact of brine in sandstone core plugs
Horvei, Bendik (Master thesis, 2017-06-15)Streaming potential is an electrokinetic phenomenon caused by relative motion of ions close to a charged surface when a fluid moves past it. By measuring the streaming potential, information related to the surface ... -
Thermal properties of reservoir rocks, role of pore fluids, minerals and digenesis. A comparative study of two differently indurated chalks
Voake, Tijana (PhD theses;494, Doctoral thesis, 2020-01)Carbonate rocks are distressed by temperature fluctuations, most commonly observed in marble monuments and cladding exposed to varying outdoor temperatures. Similarly, reservoir rocks are cooled on periodic basises during ...