• Laboratory Measurements of Strength Parameters for Fracturing 

      Walle, Lars Erik; Stroisz, Anna Magdalena; Brevik, Niklas Øystad; Jensen, Stina Stokmo; Holt, Rune Martin (Chapter, 2017)
      Fracture toughness and tensile strength are rock parameters that have influence on hydraulic fracture initiation and propagation, and that to various degrees are implemented in fracture modeling tools. Laboratory measurements ...
    • Nonlinear Elastic Waves for Estimation of Rock Properties 

      Stroisz, Anna Magdalena (Doktoravhandlinger ved NTNU, 1503-8181; 2013:375, Doctoral thesis, 2013)
      Nonlinear elasticity is a well-known feature that reveals in many phenomena and at different scale, depending on the material. Many independent studies have shown that the nonlinear response of geomaterials differs ...
    • Shale Creep as Leakage Healing Mechanism in CO2 Sequestration 

      Cerasi, Pierre; Lund, Elisabeth; Kleiven, Marta Laukeland; Stroisz, Anna Magdalena; Pradhan, Srutarshi; Kjøller, Claus; Frykman, Peter; Fjær, Erling (Journal article; Peer reviewed, 2017)
      Experiments on shale specimens targeted creep deformation in order to investigate whether this mechanism could be relied upon to close fractures and stop leakage near injection wells. Uniaxial compression tests were conducted ...
    • Stress-Induced Fracturing of Reservoir Rocks: Acoustic monitoring and uCT Image Analysis 

      Pradhan, Srutarshi; Stroisz, Anna Magdalena; Fjær, Erling; Stenebråten, Jørn; Lund, Hans Karl; Sønstebø, Eyvind Frode (Journal article, 2015)
      Stress-induced fracturing in reservoir rocks is an important issue for the petroleum industry. While productivity can be enhanced by a controlled fracturing operation, it can trigger borehole instability problems by ...