Blar i Department of Energy and Petroleum Engineering (TN-IEP) på forfatter "Zimmermann, Udo"
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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 ... -
TEM, SEM and optical microscopy analyses of Berea sandstone cores flooded with sodium silicate polymers for IOR purposes
Gjersdal, Siri Gloppen (Masteroppgave/UIS-TN-IER/2018;, Master thesis, 2018-07-13)Improved Oil Recovery (IOR) is a “hot topic” in the Oil and Gas industry. Sodium silicate (SS) is a polymer which can be injected into a reservoir as a fluid and due to polymerization it precipitates into a semi rigid gel ... -
Validation study of water weakening research from outcrop chalks performed on Eldfisk reservoir cores
Kallesten, Emanuela Iedidia; Cherif, Yosra; Madland, Merete Vadla; Korsnes, Reidar Inge; Omdal, Edvard; Andersen, Pål Østebø; Zimmermann, Udo (Peer reviewed; Journal article, 2020-11)Seawater injection for Enhanced Oil Recovery (EOR) purposes can increase the hydrocarbon recovery factor in carbonate reservoirs but are also responsible for weakening their mechanical strength. This study investigates the ... -
Validation study of water weakening research from outcrop chalks performed on Eldfisk reservoir cores
Kallesten, Emanuela Iedidia; Cherif, Yosra; Madland, Merete Vadla; Korsnes, Reidar Inge; Omdal, Edvard; Andersen, Pål Østebø; Zimmermann, Udo (Peer reviewed; Journal article, 2020-03)Seawater injection for Enhanced Oil Recovery (EOR) purposes can increase the hydrocarbon recovery factor in carbonate reservoirs but are also responsible for weakening their mechanical strength. This study investigates the ...