Browsing Norwegian Geotechnical Institute (NGI) Digital Archive by Author "Bjørnarå, Tore Ingvald"
Now showing items 1-11 of 11
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Advantages and limitation of using 2-D FE modelling for assessment of effect of mitigation measures for railway vibrations
Norén-Cosgriff, Karin; Bjørnarå, Tore Ingvald; Dahl, Birgitte Misund; Kaynia, Amir M. (Peer reviewed; Journal article, 2019)This paper addresses mitigation measures against railway vibrations in soft soils by use of FE calculations. In order for calculation models to be used as design tools, it is essential that they are relatively easy to set ... -
An analytical plane-strain solution for surface uplift due to pressurized reservoirs
Wangen, Magnus; Halvorsen, Gotskalk; Gasda, Sarah Eileen; Bjørnarå, Tore Ingvald (Peer reviewed; Journal article, 2018)In this paper, we present an analytical plane strain solution for surface uplift above pressurized reservoirs. The solution is based on a Fourier representation of the reservoir pressure. The plane strain model is developed ... -
Capturing the coupled hydro-mechanical processes occurring during CO2 injection – example from In Salah
Bjørnarå, Tore Ingvald; Mathias, Simon A.; Nordbotten, Jan Martin; Park, Joonsang; Bohloli, Bahman (Journal article, 2014)At In Salah, CO2 is removed from the production stream of several natural gas fields and re-injected into a deep and relatively thin saline formation, in three different locations. The observed deformation on the surface ... -
Capturing the coupled hydro-mechanical processes occurring during CO2 injection – example from In Salah
Bjørnarå, Tore Ingvald; Mathias, Simon A.; Nordbotten, Jan Martin; Park, Joonsang; Bohloli, Bahman (Journal article, 2014)At In Salah, CO2 is removed from the production stream of several natural gas fields and re-injected into a deep and relatively thin saline formation, in three different locations. The observed deformation on the surface ... -
Closed-form equation for subsidence due to fluid production from a cylindrical confined aquifer
Jayeoba, Ayodeji; Mathias, Simon A.; Nielsen, Stefan; Vilarrasa, Victor; Bjørnarå, Tore Ingvald (Journal article; Peer reviewed, 2019)Ground surface subsidence due to groundwater production is a significant problem. Many attempts have been made to develop analytical models to forecast subsidence rates as a consequence of groundwater production. Previous ... -
CO2 Flow, Alteration And Geomechanical Response In Confining Units – An Experimental ApproachGreen Open Access
Skurtveit, Elin; Sundal, Anja; Soldal, Magnus; Sauvin, Guillaume; Bjørnarå, Tore Ingvald (Lecture, 2018)Seal integrity during injection operations is a topic of great interest both within the CO2 storage community, for wastewater injection and traditional reservoir pressure support. The Little Grand Wash fault, central Utah, ... -
CSEM Sensitivity Study for Sleipner CO2-injection Monitoring
Park, Joonsang; Fawad, Manzar; Viken, Inge; Aker, Eyvind; Bjørnarå, Tore Ingvald (Journal article, 2013)The controlled-source electromagnetic (CSEM) method is a proven and promising geophysical technique in the hydrocarbon exploration area. Recently, there is increasing interest in applying it to CO2-injection monitoring in ... -
Geomechanical consequences of large-scale fluid storage in the Utsira Formation in the North Sea
Wangen, Magnus; Gasda, Sarah Eileen; Bjørnarå, Tore Ingvald (Journal article, 2016)In this work we look at the geomechanical implications of injecting large volumes of fluid in the Utsira Formation. Our modelling is based on Biot's poroelasticity in combination with one-phase fluid flow. We study four ... -
Investigation of caprock integrity due to pressure build-up during high-volume injection into the Utsira formation
Gasda, Sarah Eileen; Wangen, Magnus; Bjørnarå, Tore Ingvald; Elenius, Maria (Peer reviewed; Journal article, 2017)In this work, we investigate the pressure-limited storage capacity of the Utsira formation. We employ the use of a simple capacity estimate based on maximum sustainable pressure. Here, the pressure during injection or ... -
SUCCESS: SUbsurface CO2 storage–Critical elements and superior strategy
Aker, Eyvind; Bjørnarå, Tore Ingvald; Braathen, Alvar; Brandvoll, Øyvind; Dahle, Helge K.; Nordbotten, Jan Martin; Aagaard, Per; Hellevang, Helge; Alemu, Binyam Lema; Pham, Van Thi Hai; Johansen, Harald; Wangen, Magnus; Nøttvedt, Arvid; Aavatsmark, Ivar; Johannessen, Truls; Durand, Dominique (Journal article, 2011)SUCCESS is a Center for Environmental Energy Research in Norway and performs research related to geological storage of CO2 in the subsurface. The SUCCESS centre is established by the Research Council of Norway together ... -
Vertically integrated models for coupled two-phase flow and geomechanics in porous media
Bjørnarå, Tore Ingvald; Nordbotten, Jan Martin; Park, Joonsang (Peer reviewed; Journal article, 2016)Models of reduced dimensionality have been found to be particularly attractive in simulating the fate of injected CO2 in supercritical state in the context of carbon capture and storage. This is motivated by the confluence ...