Blar i NTNU Open på forfatter "Stovas, Alexey"
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Seismic Wave Attenuation in Partially Saturated Sandstone and AVO Analysis for Carbon Dioxide Quantification at Sleipner
Torres Caceres, Veronica Alejandra (Master thesis, 2017)Sleipner field (North Sea) is the first largest CO2 storage site, where the Carbon Dioxide is reinjected into the Utsira Sandstone. The main aim of this work is to obtain an estimate of the CO2 saturation by using AVO ... -
The effects of seismic anisotropy and upscaling on rock physics interpretation and AVO analysis
Adeleye, Mayowa (Master thesis, 2015)In seismic reservior characterization, it is important that the measured sonic log used is accurate and consistent. Due to anisotropic effects in the reservoir, which is majorly caused as a results of interbedded sequence ... -
Tuning and Partial Saturation Effects on Reflection Responses at Sleipner Field
Torres Caceres, Veronica Alejandra; Dupuy, Bastien; Stovas, Alexey (Chapter, 2017)Calculating the normal incidence reflection responses of a stack of layers representing Utsira reservoir, we show that the seismic amplitudes are strongly affected by the partial saturation of CO2 and brine in the high ... -
Upscaling of Finely Layered Media in the Presence of Tilted Transverse Isotropy. Application on Well-Log Data.
Abrahamsen, Trym Olav (Master thesis, 2014)The primary focus of this project is to analyze the effect of tilt angle on effective medium properties in a tilted transversely isotropic (TTI) medium. A well log has been divided into nine blocks, where eight is vertical ... -
UPSCALING OF WELL LOG DATA FOR A TRANSVERSE ISOTROPIC EFFECTIVE MEDIUM
Ameyaw Debrah, Eric (Master thesis, 2013)We develop two methods to determine; (1) net to gross and hydrocarbon saturation in a mixture of sand and shale. (2) effective properties versus tilt in sand. Backus (1962) and Schoenberg and Muir (1989) averaging are used ... -
Velocity-attenuation model from check-shot drift trends in North Sea well data
Carter, Andrew James; Caceres, Veronica; Duffaut, Kenneth; Stovas, Alexey (Peer reviewed; Journal article, 2020)Seismic attenuation distorts phase and narrows bandwidth in seismic surveys. It is also an exploration attribute, as, for example, gas or overpressure, may create attenuation anomalies. Compensating attenuation in imaging ...