Blar i UiS Brage på forfatter "Standnes, Dag Chun"
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A study of the diffusion coefficient term in counter current imbibition and its effect on production
Jørgensen, Kevin (Masteroppgave/UIS-TN-IPT/2017;, Master thesis, 2017-06-14)It is believed that most reservoirs have at least some degree of fractures and spontaneous imbibition is considered to be one of the most important recovery processes in fractured reservoirs. The imbibiton process can be ... -
Analytical solutions for forced and spontaneous imbibition accounting for viscous coupling
Andersen, Pål Østebø; Kjos Nesvik, Eirik; Standnes, Dag Chun (Journal article; Peer reviewed, 2019-11-22)Fluid-fluid momentum transfer can cause higher flow resistance when fluids flow in opposite directions as compared to the same direction. Conventional modelling of flow in porous media using simple, saturation dependent relative ... -
Analytical solutions for forced and spontaneous imbibition accounting for viscous coupling
Nesvik, Eirik Kjos (Masteroppgave/UIS-TN-IER/2019;, Master thesis, 2019-06)Theoretical and experimental work has shown that fluid mobilities can depend on flow configuration, and are typically lower when fluids flow in opposite directions as compared to when they flow in the same direction. Such ... -
Core Flooding for Analysis of Capillary End Effect and Multiphase Flow Properties
Nainggolan, Citra Kirana Lestari (Masteroppgave/UIS-TN-IEP/2018;, Master thesis, 2018-07)The non-uniform saturations along the core is called capillary end effect. The capillary end effect is caused by the condition that the capillary pressure is zero outside the core. The presence of capillary end effect is ... -
Dashboard for visualization, evaluation and modeling of wellbore and field H2S production
Narzulloyev, Alisher (Masteroppgave/UIS-TN-IEP/2018;, Master thesis, 2018-06)For several years, continuously increasing amounts of hydrogen sulfide (H2S) are being produced from numerous fields on the Norwegian Continental Shelf as a result of reservoir souring. Reservoir souring – increasing ... -
Experimental Analysis of Oil Recovery in Core Samples
Salomonsen, Liva (Bachelor thesis, 2021)An experimental analysis of oil recovery in core samples during spontaneous and forced imbibition have been performed. Grey Berea sandstone cores with a permeability around 120 mD have been used in the experiments. The ... -
Interpretation of 1-D Counter-Current Spontaneous Imbibition Processes Using Microscopic Diffusion Theory and a Modified Buckley – Leverett Approach
Standnes, Dag Chun; Andersen, Pål Østebø; Papatzacos, Paul Georg; Skjæveland, Svein Magne (Peer reviewed; Journal article, 2020-04)This paper presents a new convenient and easy-to-use method to analyze and calculate measurable quantities in 1-D counter-current (COUC) spontaneous imbibition (SI) processes. Cumulative water imbibed vs time can be ... -
Numerical simulation of Spontaneous Imbibition of Smart Water into Preferentially oil-wet Carbonate using ECLIPSE 100
Worku, Tewodros Sebsibe (Masteroppgave/UIS-TN-IPT/2016;, Master thesis, 2016-06)Spontaneous imbibition (SI) is the main recovery mechanism in low matrix perme- ability, naturally fractured reservoirs. However, for imbibition to occur, the reservoir rock should be preferentially water-wet. Several ... -
Prediction efficiency of immiscible Water Alternating Gas Performance by LSSVM-PSO algorithms
Kengessova, Aizhan (Masteroppgave/UIS-TN-IEP/2020;, Master thesis, 2020)In this work the aim is developing LSSVM-PSO model capable of capturing the interplay between the most influential parameters (mechanisms) and recovery factor (RF) of WAG process in layered reservoirs. In a previous work ... -
Relative Permeability and Capillary Pressure Estimation from Core-flooding Experiments accounting for Capillary End Effects.
Pulido Vasquez, Eliana (Masteroppgave/UIS-TN-IEP/2018;, Master thesis, 2018-07)Abstract Relative Permeability and Capillary Pressure Estimation from Core-flooding Experiments studying Capillary End Effects Relative permeability (Relperm) and capillary pressure (Cp) are fundamental input ... -
Well Modelling of H2S Production on a Field in the North Sea
Mburu, Andrew (Masteroppgave/UIS-TN-IEP/2018;, Master thesis, 2018-06)Hydrogen sulphide production can prove to be a very costly affair for exploration and production companies. Failure to implement efficient H2S control and mediation strategies can lead to a decrease in production assets, ...