Blar i Department of Energy Resources (TN-IER) på tittel
Viser treff 189-208 av 274
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Probabilistic model-error assessment of deep learning proxies: an application to real-time inversion of borehole electromagnetic measurements
(Peer reviewed; Journal article, 2022)The advent of fast sensing technologies allow for real-time model updates in many applications where the model parameters are uncertain. Once the observations are collected, Bayesian algorithms offer a pathway for real-time ... -
Probabilistic Time Estimation for Drilling Operations on NCS Using Monte Carlo.
(Master thesis, 2021)The purpose of this thesis is to present a probabilistic methodology for developing time estimates for drilling operations on the NCS, which can further be expanded to supplementary continental shelfs in the world, or for ... -
Probability elicitation using geostatistics in hydrocarbon exploration
(Peer reviewed; Journal article, 2021)The exploratory phase of a hydrocarbon field is a period when decision-supporting information is scarce while the drilling stakes are high. Each new prospect drilled brings more knowledge about the area and might reveal ... -
Production of Smart Water by Acid Flooding in Chalk Cores: Oil Recovery Effects at Intermediate Temperature
(Masteroppgave/UIS-TN-IER/2019;, Master thesis, 2019-06-14)Considering that most carbonates are of low water wetness, it is of great interest to inject a brine that can alter the wettability to enhance oil production. Smart Water injection has therefore become the most meaningful ... -
Production of Smart Water by Acid Flooding in Chalk: Temperature Limitation at Slightly Water-Wet Conditions
(Masteroppgave/UIS-TN-IER/2019;, Master thesis, 2019-06-14)Seawater has proven to be an excellent injection fluid in chalk due to its ability to alter the wettability towards more water-wet conditions at high temperatures. This chemically induced wettability alteration improves ... -
Provenance Evaluation of Lower Cretaceous in the Stappen High Area and Implications for Reservoir Development
(Masteroppgave/UIS-TN-IER/2020;, Master thesis, 2020-07-28)Southeast directed fluvio-deltaic systems transported across Svalbard during Early Cretaceous are age correlated to southeast progradation deposits in the in Fingerdjupet Subbasin. Both local (few km) and distal (>300 km) ... -
Provenance of Lower Cambrian rocks in Northern Spain – U-Pb isotope ages on detrital zircons in different lithofacies
(Bachelor thesis, 2021)The Herrería Formation with a Lower Cambrian depositional age exposed in the Cantabrian Mountains of northern Spain is the focus of this study. The motivation of this study is related to recognized significant provenance ... -
Provenance on the Lysing-Lange megasequences on the Dønna Terrace: focus on stratigraphic variability and lateral sandbody connectivity
(Masteroppgave/UIS-TN-IER/2019;, Master thesis, 2019-06-29)The Cenomanian to Coniacian-Turonian Lange-Lysing megasequences are located on the Dønna Terrace in the Norwegian Sea. Provenance study using traditional provenance methods such as petrography, whole-rock geochemistry, and ... -
Provenance, depositional setting and diagenesis as keys to reservoir quality of the Lower Cretaceous in the SW Barents Sea
(Peer reviewed; Journal article, 2021-07)This study examines the role of the depositional environment for the final reservoir quality in four Lower Cretaceous sandstone reservoirs in the southwestern Barents Sea by linking facies to the distribution of primary ... -
PTA-metrics for time-lapse analysis of well performance
(Peer reviewed; Journal article, 2023)Monitoring of a well and the surrounding reservoir performances is a crucial component in evaluating on-going and planning future well and field operations. This is carried out at all stages of a well life-span: from ... -
Quantitative seismic interpretation using converted PS waves: A case study from the Oseberg South Field, North Sea
(Masteroppgave/UIS-TN-IER/2018;, Master thesis, 2018-06)The converted wave (PS) seismic in combination with the compressional wave (PP) seismic may help in better description and understanding of subsurface stratigraphic and structural features. Since compressional and shear ... -
Reaction kinetics determined from core flooding and steady state principles for Stevns Klint and Kansas chalk injected with MgCl2 brine at reservoir temperature
(Peer reviewed; Journal article, 2022)A methodology is presented for determining reaction kinetics from core flooding: A core is flooded with reactive brine at different compositions with injection rates varied systematically. Each combination is performed ... -
Reactive Flow Simulation
(Masteroppgave/UIS-TN-IER/2019;, Master thesis, 2019-06-15)Sea water-injection in carbonate formations leads to reactive processes that are linked to affecting oil recovery via wettability alteration and chemical compaction. The concentrations of divalent ions, such as Ca2+, Mg2+, ... -
Reinforcement Learning for Automated Power Grid Operation: Can a machine be trained to operate a power grid?
(Master thesis, 2021)The increasingly high demand and amount of renewable energy sources in the power grid have added more complexity to power grid operations. The electrical power system must ensure that the generated power and the consumed ... -
Relative Geologic Time By Dynamic Time Warping
(Master thesis, 2022)This thesis considers an approach to tackle a core problem within seismic interpretation, which is bringing an autonomously generated interpretation of the seismic data, which is now known as a Relative Geologic Time. The ... -
Reservoir Characterization of the Snorre field: A pseudo wells based inversion approach
(Masteroppgave/UIS-TN-IER/2019;, Master thesis, 2019-06-14)Complex reservoirs make hydrocarbon exploration challenging, and therefore improvement of methods for discovering and producing hydrocarbons is desired. Consequently, various seismic inversion algorithms have been developed ... -
Reservoir Modeling and Uncertainty Estimation: A Comparison Between Stochastic and Deterministic Inversion.
(Masteroppgave/UIS-TN-IER/2019;, Master thesis, 2019-06-29)This study compares the uncertainty estimation based on both deterministic and stochastic inversion with the Gauss Simulation technique applied to modelling the distribution of limestone facies in a sand-shale reservoir. ... -
Reservoir Simulation of Chemical Inflow Tracers in Horizontal Wells
(Masteroppgave/UIS-TN-IER/2019;, Master thesis, 2019-06-14)Conventional production logging tools can be challenging to deploy and interpret in long horizontal wells. Inflow tracer technology can address these challenges, by allowing continuous monitoring of the horizontal section. ... -
Resistivity of reservoir sandstones and organic rich shales on the Barents Shelf: Implications for interpreting CSEM data
(Peer reviewed; Journal article, 2021-11)Marine controlled source electromagnetic (CSEM) data have been utilized in the past decade during petroleum exploration of the Barents Shelf, particularly for de-risking the highly porous sandstone reservoirs of the Upper ... -
Review of Different Methods for Identification of Transients in Pressure Measurements by Permanent Downhole Gauges Installed in Wells
(Peer reviewed; Journal article, 2023)Permanent downhole gauges (PDG) are massively installed in injection and production wells operated in different industries such as oil and gas, geological CO2 storage, and the geothermal industry. These gauges provide a ...