Blar i UiS Brage på forfatter "Minde, Mona Wetrhus"
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An Analytical TOOLBOX for the Characterization of Chalks and Other Fine-Grained Rock Types within Enhanced Oil Recovery Research and Its Application—A Guideline
Zimmermann, Udo; Minde, Mona Wetrhus; Madland, Merete Vadla; Bredal, Tine Vigdel (Peer reviewed; Journal article, 2022-06)Analyses of fine-grained rocks like shales, cherts, and specifically chalk are challenging with regards to spatial resolution. We propose a “toolbox” to understand mineralogical alteration in chalk, especially those induced ... -
Cement properties characterization from a section retrieved from an oil production well after 33 years of downhole exposure
Beltran Jimenez, Katherine; Gardner, Dave; Kragset, Steinar; Gebremariam, Kidane Fanta; Reales, Oscar A. M.; Minde, Mona Wetrhus; Lourenco de Souza, Marcelo I.; Aasen, Jan Aage; Skadsem, Hans Joakim; Delabroy, Laurent (Peer reviewed; Journal article, 2021)A unique data set has been constructed based on the study of class G cement recovered from an oil well on the Norwegian continental shelf. The cement was placed between two casing sections and submitted to downhole conditions ... -
Compaction and Fluid—Rock Interaction in Chalk Insight from Modelling and Data at Pore-, Core-, and Field-Scale
Minde, Mona Wetrhus; Hiorth, Aksel (Peer reviewed; Journal article, 2020)Water weakening is a phenomenon that is observed in high porosity chalk formations. The rock interacts with ions in injected water and additional deformation occurs. This important effect needs to be taken into account ... -
Determination of atomic positions and polar direction in half-Heusler material Sb1- xSnxTi1-y-zHfyZrzCo using electron channeling
Hansen, Vidar; Echevarria-Bonet, Cristina; Minde, Mona Wetrhus; Taftø, Johan (Journal article; Peer reviewed, 2018-12)Variation of electron-induced x-ray emission with the crystal direction of an incoming electron beam (channeling) is used to study the crystal site preference of different elements in a promising thermoelectric half-Heusler ... -
Directed laser deposition of super duplex stainless steel: Microstructure, texture evolution, and mechanical properties
Sayyar, Navid; Hansen, Vidar Folke; Tucho, Wakshum Mekonnen; Minde, Mona Wetrhus (Peer reviewed; Journal article, 2023-04)Microstructure and texture evolution of directed-laser deposited super-duplex stainless-steel, in the as-received block, were characterized using light and electron microscopies and electron backscattered diffraction. ... -
Effect of Iron Oxide Nanoparticles on the Properties of Water-Based Drilling Fluids
Alvi, Muhammad Awais Ashfaq; Agonafir, Mesfin Belayneh; Bandyopadhyay, Sulalit; Minde, Mona Wetrhus (Peer reviewed; Journal article, 2020-12)In recent years, several studies have indicated the impact of nanoparticles (NPs) on various properties (such as viscosity and fluid loss) of conventional drilling fluids. Our previous study with commercial iron oxide NPs ... -
High-Resolution Topographic and Chemical Surface Imaging of Chalk for Oil Recovery Improvement Applications
Bredal, Tine Vigdel; Zimmermann, Udo; Madland, Merete Vadla; Minde, Mona Wetrhus; Ost, Alexander D.; Wirtz, Tom; Audinot, Jean-Nicolas; Korsnes, Reidar Inge (Peer reviewed; Journal article, 2022-03)Chalk is a very fine-grained carbonate and can accommodate high porosity which is a key characteristic for high-quality hydrocarbon reservoirs. A standard procedure within Improved Oil Recovery (IOR) is seawater-injection ... -
Micro- and nano-applications to monitor the rock-fluid interaction in fractured chalk
Minde, Mona Wetrhus (Master thesis, 2015-06)The aim of this project is to contribute to the research of improved oil recovery (IOR) through studying the formation of new mineral phases in a fractured Cretaceous onshore chalk core, flooded with synthetic seawater ... -
Mineral replacement in long-term flooded porous carbonate rocks
Minde, Mona Wetrhus; Zimmermann, Udo; Madland, Merete Vadla; Korsnes, Reidar Inge; Schultz, Bernhard; Gilbricht, Sabine (Peer reviewed; Journal article, 2019-09)This study reports mineralogical and physical property changes linked to geo-chemical alterations processes during three ultra-long-term tri-axial tests on outcrop-chalk from Liège (Belgium). The test core plugs were flooded ... -
Mineral Replacements in Flooding Experiments Linked to Enhanced Oil Recovery in Chalk
Minde, Mona Wetrhus (PhD thesis UiS;, Doctoral thesis, 2018-11)Seawater injection into chalk-reservoirs on the Norwegian Continental Shelf has increased the oil recovery and reduced seabed subsidence. In the researchfield of Improved Oil Recovery (IOR) the effects of injection of ... -
Mineralogical alterations in calcite powder flooded with MgCl2 to study Enhanced Oil Recovery (EOR) mechanisms at pore scale
Minde, Mona Wetrhus; Madland, Merete Vadla; Zimmermann, Udo; Egeland, Nina; Korsnes, Reidar Inge; Nakamura, Eizo; Kobayashi, Katsura; Ota, Tsutomu (Peer reviewed; Journal article, 2019)Seawater injection into chalk-reservoirs on the Norwegian Continental Shelf has increased the oil recovery and reduced seabed subsidence, but not eliminated it. Therefore, understanding rock–fluid interactions is paramount ... -
Water Weakening of Artificially Fractured Chalk, Fracture Modification and Mineral Precipitation during Water Injection—An Experimental Study
Bredal, Tine Vigdel; Korsnes, Reidar Inge; Zimmermann, Udo; Minde, Mona Wetrhus; Madland, Merete Vadla (Peer reviewed; Journal article, 2022-05)This experiment was designed to study the water-weakening effect of artificially fractured chalk caused by the injection of different compositions of brines under reservoir conditions replicating giant hydrocarbon reservoirs ...