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Browsing Norwegian Geotechnical Institute (NGI) Digital Archive by Author "Soldal, Magnus"

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    • Benchmark study of undrained triaxial testing of Opalinus Clay shale: Results and implications for robust testing 

      Minardi, Alberto; Giger, Silvio B.; Ewy, Russel T.; Stancovic, Rudy; Stenebråten, Jørn; Soldal, Magnus; Rosone, Marco; Ferrari, Alessio; Laloui, Lyesse (Peer reviewed; Journal article, 2020)
      Triaxial testing of argillaceous rocks and shales is significantly more challenging than conventional rock mechanical testing. The challenges are mainly related to the very low permeability of these geomaterials, and their ...
    • 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, ...
    • Experimental and analytical assessment of Draupne shale seal integrity for CO2 storage sites 

      Soldal, Magnus; Skurtveit, Elin; Bohloli, Bahman; Wilkinson, Heidi; Choi, Jung Chan; Griffiths, Luke; Smith, Halvard (Lecture, 2019)
      Carbon dioxide (CO2) capture and storage is one of the most important measures to reduce the atmospheric concentration of CO2. To ensure safe storage, operations must be conducted in way that respects operational limitations. ...
    • Experimental investigation of natural fracture stiffness and flow properties in a faulted CO2 bypass system (Utah, USA) 

      Skurtveit, Elin; Sundal, Anja; Bjørnarå, Tore Ingvald; Soldal, Magnus; Sauvin, Guillaume; Zuchuat, Valentin; Midtkandal, Ivar; Braathen, Alvar (Peer reviewed; Journal article, 2020)
      Fracture stiffness and flow properties have been measured in the laboratory using naturally fractured fault rock samples from the Little Grand Wash fault, Utah, USA. We compare fracture closure and related flow change ...
    • Experimental percolation of supercritical CO2 through a caprock 

      Angeli, Matthieu; Soldal, Magnus; Skurtveit, Elin; Aker, Eyvind (Journal article, 2009)
      Leakage of CO2 into the atmosphere is the most crucial concern for geological storage of anthropogenic CO2. Leakage routes could develop through existing wells and pipelines, but also by natural migration of CO2 rich ...
    • Frictional Properties and Seismogenic Potential of Caprock Shales 

      Bohloli, Bahman; Soldal, Magnus; Smith, Halvard; Skurtveit, Elin; Choi, Jung Chan; Sauvin, Guillaume (Peer reviewed; Journal article, 2020)
      Fractures and faults are critical elements affecting the geomechanical integrity of CO2 storage sites. In particular, the slip of fractures and faults may affect reservoir integrity and increase potential for breach, may ...
    • Inferring microseismic source mechanisms and in situ stresses during triaxial deformation of a North-Sea-analogue sandstone 

      Griffiths, Luke; Dautriat, Jérémie; Rodriguez, Ismael A Vera; Iranpour, Kamran; Sauvin, Guillaume; Park, Joonsang; Sarout, Joel; Soldal, Magnus; Grande, Lars; Oye, Volker; Dewhurst, David; Mondol, MD Nazmul Haque; Choi, Jung Chan (Peer reviewed; Journal article, 2019)
      Monitoring microseismic activity provides a window through which to observe reservoir deformation during hydrocarbon and geothermal energy production, or CO2 injection and storage. Specifically, microseismic monitoring may ...
    • Influence of CO2 on rock physics properties in typical reservoir rock: A CO2 flooding experiment of brine saturated sandstone in a CT-scanner 

      Alemu, Binyam Lema; Aker, Eyvind; Soldal, Magnus; Johnsen, Øistein; Aagaard, Per (Journal article, 2011)
      Laboratory core flooding experiment was run to investigate the joint use of electrical resistivity, ultrasonic velocities and 3D images of fluid distribution to improve current understanding of CO2 and brine behaviour ...

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