Blar i Department of Energy Resources (TN-IER) på utgivelsesdato
Viser treff 21-40 av 271
-
Age and Provenance study of Paleoarchean rocks from the Singhbhum Craton (India)
(Masteroppgave/UIS-TN-IER/2018;, Master thesis, 2018-08-13)This study has performed in situ U-Pb and Lu-Hf isotope analysis on zircons and in situ U-Pb isotope analysis on apatites, by LA-ICP-MS and MC-ICPMS, from three Tonalite-Trondhjemite-Granodiorite (TTG) samples from ... -
Novel Principles for Effective Earth Model Grid Management while Geosteering
(PhD thesis UiS;409, Doctoral thesis, 2018-09)The aim of geosteering is to place the well optimally in the reservoir, based on the available measurements and interpretations of the geology. The interpretations are captured in earth models that are used for decision ... -
Adhesive forces between two cleaved calcite surfaces in NaCl solutions: The importance of ionic strength and normal loading
(Journal article; Peer reviewed, 2018-12-15)The mechanical strength of calcite bearing rocks is influenced by pore fluid chemistry due to the variation in nano-scale surface forces acting at the grain contacts or close to the fracture tips. The adhesion of two ... -
Effects of pore fluids on quasi‐static shear modulus caused by pore‐scale interfacial phenomena
(Peer reviewed; Journal article, 2019)It is evident from the laboratory experiments that shear moduli of different porous isotropic rocks may show softening behaviour upon saturation. The shear softening means that the shear modulus of dry samples is higher ... -
Time lapse seismic analysis of the Tohoku-Oki 2011 earthquake
(Peer reviewed; Journal article, 2019)A detailed time lapse seismic analysis of subsurface movements is presented using seismic 2D lines acquired prior to and after the Tohoku-Oki earthquake offshore Japan in 2011. Estimated movements of the seabed from the ... -
Simulation of immiscible WAG injection in a stratified reservoir -- performance characterization using a new dimensionless number
(Peer reviewed; Journal article, 2019)Water alternating gas (WAG) is a well‐established enhanced‐oil‐recovery process where gas and water are injected in alternating fashion. Good volumetric sweep is achieved as water and gas target both the oil residing in ... -
A laboratory scale approach to wettability restoration in chalk core samples
(Peer reviewed; Journal article, 2019)Wettability in chalk has been studied comprehensively to understand fluid flow mechanisms impacting coreflooding experiments. Wettability becomes paramount in understanding the parameters influencing chalk-fluid interactions. ... -
Modelling of creep compacting outcrop chalks injected with Ca-Mg-Na-Cl brines at reservoir conditions
(Peer reviewed; Journal article, 2019)Numerical and analytical 1D solutions are presented to interpret the link between geochemical alterations and creep compaction (compaction under constant effective stress) in chalk cores. Chemically reactive flow enhancing ... -
Bulk moduli and seismic attenuation in partially saturated rocks: hysteresis of liquid bridges effect
(Journal article; Peer reviewed, 2019-03-20)A key task of exploration geophysics is to find relationships between seismic attributes (velocities and attenuation) and fluid properties (saturation and pore pressure). Experimental data suggests that at least three ... -
Preparation and characterization of Nanocomposite gels for fracture plugging in chalks
(Masteroppgave/UIS-TN-IER/2019;, Master thesis, 2019-06)Excessive water production is a common challenge the oil industry is faced with. The lifting, treatment and disposal of produced water can cause a financial strain on the profitability of a hydrocarbon asset or even shorten ... -
Triassic Reservoir potential in the greater Oda and Ula fields area, North Sea
(Masteroppgave/UIS-TN-IER/2019;, Master thesis, 2019-06)The objective of this thesis is to improve the understanding of the lateral distribution of the sandstones of the Skagerrak Fm, by using 3D seismic data and wells in the greater Oda and Ula field area. The Oda and Ula ... -
Experimental Investigation of Material Functions of EOR Polymer Solutions
(Masteroppgave/UIS-TN-IER/2019;, Master thesis, 2019-06)The material functions of multiple EOR polymers were measured and analyzed. Investigating the start-up and relaxation behaviour of multiple polymeric solutions were the main focus of this thesis work. The experimented data ... -
Lateral compositional variations in the Upper Jurassic source rock in the southwestern Barents Sea – an organic or inorganic disclosure
(Masteroppgave/UIS-TN-IER/2019;, Master thesis, 2019-06)Prominent high-value gamma-ray spikes in the maximum flooding surfaces of the Alge Member of the Hekkingen Formation display an uncommon stratigraphic and regional variation in the southwestern Barents Sea. The variation ... -
The effect of wettability on waterflooding and relative permeability at quite water-wet conditions in chalk core
(Masteroppgave/UIS-TN-IER/2019;, Master thesis, 2019-06)The effect of performing waterflooding in chalk has been previously tested with a purpose of Enhanced Oil recovery. Regarding oil recovery processes, rock wettability is the key parameter determining transport of fluid ... -
Transverse Faults in the Corinth Rift System, Greece
(Masteroppgave/UIS-TN-IER/2019;, Master thesis, 2019-06)The area around the Aegean Sea contains one of the most seismically active continental regions in the world. The region is composed of two WNW-ESE trending rift systems: Corinth Rift and the Evia Rift as well as a major ... -
Hybridization of gradient-based and gradient-free optimization techniques for simultaneous optimization of number of wells, their location and drilling time in a 2-dimensional reservoir
(Masteroppgave/UIS-TN-IER/2019;, Master thesis, 2019-06)Optimization has always been a challenging scope in any field of science, and reservoir management is no exception. By the advent of computational power, the use of mathematical algorithms in conjunction with reservoir ... -
Water shut-off with polymer - core study application for the Alvheim Field
(Masteroppgave/UIS-TN-IER/2019;, Master thesis, 2019-06)This thesis is an experimental study where different polymers have been evaluated for disproportionate permeability reduction (DPR) effects. The laboratory work was performed at Norce, for Aker BP, as a part of the Master’s ... -
Modeling of turbidite systems in deep-water, thrust-related bivergent anticlines
(Masteroppgave/UIS-TN-IER/2019;, Master thesis, 2019-06)In deep-water fold and thrust belts, thrust-related folds that switch vergence along strike can occur and are considered to have a major impact on reservoir distribution (Higgins et al., 2009). Syn-sedimentary processes ... -
Origin of anticline structure in the southern Hammerfest Basin and their impact in sedimentation and coarse-grained distribution
(Masteroppgave/UIS-TN-IER/2019;, Master thesis, 2019-06)This thesis shows how extensional fault-related folding holds a fundamental control on basin physiography and syn-kinematic sediments. The study has used two- and three-dimensional seismic data in combination with a ... -
Applying Geological Process Modeling to a turbidite system in the northern North Sea
(Masteroppgave/UIS-TN-IER/2019;, Master thesis, 2019-06)In recent years, several mathematical methods, especially those based on geostatistics, have been used in reservoir characterization. The reliability of the static models derived from these techniques depends on available ...