It is open day and night for students and staff at UiS. Good volumetric sweep is achieved as water and gas target both the oil residing in low and high portions of the reservoir, respectively.
high-permeable fracture network. Ullandhaug is the biggest department. In ongoing work, this setup is implemented experimentally using mi...During this year's Researcher's Night event in Stavanger I gave a short presentation on research work at the time, which highlighted details from a corresponding poster in how Buckley-Leverett theory could be expanded to explain recovery of WAG in a 1D setting. Other important features in three phase hysteretic flow include phase trapping which is believ...In preferential oil-wet porous media, water flooding laboratory experiments are prone to capillary end effects. The full model is developed in two stages: first as a general model ba...Excel sheet for demonstration and Application of the capillary pressure correlation presented in Andersen et al 2017 (ADIPEC)Primary drainage by centrifuge is considered where a core fully saturated with a dense wetting phase is rotated at a given rotational speed and a less dense, nonwetting phase enters. fluids flow in opposite directions as compared to the same direction. 2017) for calculation of capillary pressure and water relative permeability during core flooding with water to displace oil. The UiS accommodation is more expensive than the SiS accommodation, but more affordable than what students can expect to find on the private market in Stavange.The University library has four departments. Besides mechanical compaction, ch...Steady state relative permeability experiments are performed by coinjection of two (or more) immiscible fluids. (2017). In particular, the role of the divalent ions (Ca2+, Mg2+ and SO24−) present in seawater have been extensivel...Spontaneous imbibition can be an important drive mechanism in fractured Injected water will flow into this highly permeable network and not sweep the matrix containing most of the oil. In constant collaboration and dialogue with our surroundings, regionally, nationally and internationally, we enjoy an open and creative climate for education, research, innovation, dissemination and museum activities. Previously conducted spontaneous imbibition tests in fully oil-saturated and strongly water-wet Bentheimersandstone core plugs, using OEO (One End Open) and TEOFSI (Two Ends Open Free Spontaneous Imbibition) revealed a significant delay at...The purpose of this paper is to investigate the main controlling factors during continuum flow regime in shale gas production in the context where well-induced fractures, extending from the well perforations, improve reservoir conductivity and performance. MTGEN contains an additional term in the denominator, compared to the standard mo...Lunch & Learn presentation at UiS, hosted by the National IOR Center of NorwayIt is well known that relative permeabilities (RPs) can vary depending on the flow configuration and are lower during counter-current flow as compared to co-current flow. You will also find relevant information for both potential and admitted candidates. Lab tests have shown that oil recovery from chalk core plugs by spontaneous imbibition can be highly dependent on the composition of the in situ brine and the imbibing brine. In this work, Least Squares Support Vector Machine (LSSVM) optimized by Particle Swarm Optimization, has been proposed to learn and then predict adsorption capacity of methane and carbon dioxide from pure and binary gas mixtures in Ju...Development of petroleum reservoirs, including primary depletion of the pore pressure and repressurization during water injection naturally leads to changes in effective stresses of the formations. We show how WAG recovery, with and without hysteresis, can be characterized by a single dimensionless number. By the use of alternating injections of gas and water, better volumetric sweep is achieved due to the presence of water, which limits gravity segregation effects by controlling the ga...With the current technology, only 3-10 % of gas from tight shale is recovered economically through natural depletion, demonstrating that there is a significant potential for enhanced recovery. conditions. We present the interaction of CO2 and CH4 with shale rocks and discuss the dependence of gas sorption on shale properties including organ...The major challenge faced by our 21 st century global society is to provide high value energy resources in support of environmentally sustainable economic development. Their offers should motivate students in the Stavanger region to be more active through sports groups, athletic events and other social activities. However the wettability of the reservoir is critical for the ultimate potential of oil recovery. A mathematical 1D+1D model is presented which involves a high-permeable fracture extending from a well perforation, throug...In this study, eight tri-axial tests on Cretaceous age outcrop chalk from Aalborg have been performed systematically by injecting MgCl2 for the first time at different temperatures (25, 60, 92, 110 and 130 °C) and for comparison, NaCl at 130 °C.