• Diving-wave time-lapse delay for CO2 thin layer detection 

      Martinez Guzman, Ricardo Jose; Vinje, Vetle; Stovas, Alexei; Mispel, Joachim; Ringrose, Philip Stefan; Duffaut, Kenneth; Landrø, Martin (Peer reviewed; Journal article, 2024)
      We have derived an analytical approximate expression to estimate the delay in diving seismic waves due to thin layers of CO2. The expression is valid for high frequencies and can be used to estimate the delay in diving ...
    • Seismic data processing in orthorhombic anisotropic media 

      Xu, Shibo (Doctoral theses at NTNU;2018:243, Doctoral thesis, 2018)
      Describing the directional dependence of the wave velocity, seismic anisotropy has dramatically been gaining attention from both academic and industry, thanks to advances in the wider offset and azimuthal coverage of 3D ...
    • Understanding the impact of stress release on sandstone using sound waves: rock physics, applications and code 

      Yu, Jiaxin (Doctoral theses at NTNU;2024:100, Doctoral thesis, 2024)
      The acoustic and elastic responses of sandstones vary with changes in effective stress. Laboratory measurements have indicated that among different types of sandstones, velocities and elastic moduli of weakly cemented ...