Blar i Department of Physics and Technology på emneord "752223"
Viser treff 41-60 av 87
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Influence of Residual Oil on Polymer Injectivity
(Master thesis, 2017-06-22)Because a significant fraction of the world’s light oil reservoirs has already been produced, the technical and economic challenges of developing heavy oil fields is now unavoidable [1]. Water flooding has proven to be a ... -
Investigation of Low Salinity Polymer and Surfactant Flooding in Carbonate Reservoir at Reservoir Conditions
(Master thesis, 2018-04-20)It is estimated that 40-60% of the world’s total hydrocarbon production is from carbonate rocks [1]. Carbonate rocks contain the world`s largest fields in the Middle East (i.e., Ghawar Field, Saudi Arabia). Waterflooding ... -
Karakterisering av silika nanopartikler for økt oljeutvinning
(Master thesis, 2014-09-01)Anvendelsen av silika nanopartikler for EOR-formål krever stabile dispersjoner ved typiske reservoarforhold. Optimale silikadispersjoner vil være stabile over lengre tid ved nøytrale pH- verdier og høye elektrolyttkonsentrasjoner. ... -
Low Salinity Waterflood in Combination with Surfactant/Polymer: Effect of Brine Composition
(Master thesis, 2014-06-02)The effect of low salinity water (LSW) on enhanced oil recovery has been known for decades. Although much research is done on the topic, a general agreement of the prevailing mechanism for the low salinity effect has still ... -
Low Salinity Waterflood in Combination with Surfactant/Polymer; Effect of Surfactant Slug Size
(Master thesis, 2014-06-02)In last years, there has been a growing interest in the effect of reducing salinity of injected water in oil recovery. Many studies have showed that low salinity waterflooding is a promising method that can lead to a ... -
Low Salinity Waterflood in Combination with Surfactant/Polymer; Effects of Kinetics and Brine Composition
(Master thesis, 2014-06-01)Improving the oil recovery beyond what is possible by conventional methods is a topic of great interest, and the potential oil recovery for a field can be improved if unconventional methods are implemented. Reducing the ... -
Low Salinity Waterflooding in Combination with Surfactant/Polymer. A Field Scale Simulation Study of Hybrid EOR
(Master thesis, 2018-06-27)It is projected that 77% of energy consumption will originate from fossil fuels in 2040, indicating a continuous demand for crude oil [1]. Nevertheless, more than half of the hydrocarbons produced at present originate from ... -
Magnetic Resonance Imaging of Hydrate Phase Transitions in Sediments
(Master thesis, 2017-12-21)Natural gas hydrates, simplified described as gas compressed in ice, are a substance existing in large quantities around the world. Their existence requires elevated pressures and low temperature. They are therefore found ... -
Mechanistic Modeling of Combined Low Salinity Waterflood and Surfactant- Polymer Flooding
(Master thesis, 2018-06-27)Flooding experiments have been made to investigating the effects of low salinity brine injection and the combined injection of low salinity surfactant and low salinity polymer solutions. These experiments have shown a large ... -
Methane Production from Natural Gas Hydrates. Impact of Temperature on CH4 -CO2 Exchange rate in Hydrate Bearing Sandstone
(Master thesis, 2013-06-17)Dissociation by pressure depletion, thermal stimulation and/or injection of inhibitors are three known methods for gas production from natural gas hydrates. Challenges concerning these production methods are water and sand ... -
Microstructural visco-elastic models for carbonates and related porous media
(Master thesis, 2021-02-23) -
Mobility Control by CO2-foam Injection for Integrated EOR
(Master thesis, 2014-06-02)This thesis investigated integrated enhanced oil recovery (IEOR) methods in fractured carbonate rocks. The objective was to study the oil recovery by miscible CO2 injection in fractured rocks using different rock types and ... -
Mobility Control for CO2 EOR in Heterogeneous Reservoirs
(Master thesis, 2014-06-02)This experimental thesis investigates enhanced oil recovery (EOR) by secondary and tertiary CO2 and/or CO2-foam injections at miscible conditions in fractured and whole core plugs using different rock types. Injection of ... -
Modelling of Low Salinity Surfactant Polymer Coreflood Experiments
(Master thesis, 2018-12-07)In recent years, there has been a growing interest in the effect of varying brine composition during waterflooding. Several studies on low salinity water injection have been conducted, and the results indicate a potential ... -
NMR measurements of wettability alternation in Berea Sandstone
(Master thesis, 2011-11-28)When a new oil reservoir is discovered and a production strategy is chosen the knowledge about wettability characteristics for the field is of outermost importance. Wettability is a key factor for fluid distribution and ... -
Numerical Modeling of a CO2 Foam EOR and CO2 Storage Field Pilot.
(Master thesis, 2021-11-29) -
Onset of Spontaneous Imbibition
(Master thesis, 2017-06-22)The spontaneous imbibition process in porous media is an important recovery mechanism and is governed by capillary forces that arise when two immiscible fluids are present in the pore space. This thesis presents new ... -
Petrophysical characterization in paleokarst and effect on reservoir properties
(Master thesis, 2012-06-29)Karst is a geological process that can enhance porosity and permeability within a carbonate succession, thus affecting the heterogeneity producing a substantial effect on the fluid flow. The subject is not widely explored ... -
Polymer Enhanced Foam in Unconsolidated Sand
(Master thesis, 2016-06-01)Foam is an EOR technique that significantly can improve the macroscopic sweep efficiency by lowering the gas mobility. Limited stability of conventional surfactants for foam generation is one of the reasons why foam is not ... -
Pore-Level Interpretation of Methane Hydrate Growth and Dissociation with Deionized and Saline Water
(Master thesis, 2017-06-22)Natural gas hydrates are solid crystalline compounds composed of water and gas molecules, located in vast amounts around the world, in subsurface permafrost and oceanic environments. With an increasing demand of energy ...