• Combined positron emission tomography and computed tomography to visualize and quantify fluid flow in sedimentary rocks 

      Fernø, Martin; Gauteplass, Jarand; Hauge, Lars Petter; Abell, Geir Espen; Adamsen, Tom Christian; Graue, Arne (Peer reviewed; Journal article, 2015-09-22)
      Here we show for the first time the combined positron emission tomography (PET) and computed tomography (CT) imaging of flow processes within porous rocks to quantify the development in local fluid saturations. The coupling ...
    • Flow visualization of CO2 in tight shale formations at reservoir conditions 

      Fernø, Martin; Hauge, Lars Petter; Rognmo, Arthur Uno; Gauteplass, Jarand; Graue, Arne (Peer reviewed; Journal article, 2015-09-18)
      The flow of CO2 in porous media is fundamental to many engineering applications and geophysical processes. Yet detailed CO2 flow visualization remains challenging. We address this problem via positron emission tomography ...
    • Hydrate Plugging and Flow Remediation during CO2 Injection in Sediments 

      Gauteplass, Jarand; Almenningen, Stian; Barth, Tanja; Ersland, Geir (Journal article; Peer reviewed, 2020)
      Successful geological sequestration of carbon depends strongly on reservoir seal integrity and storage capacity, including CO2 injection efficiency. Formation of solid hydrates in the near-wellbore area during CO2 injection ...
    • Measurements of CH4 and CO2 relative permeability in hydrate-bearing sandstone 

      Almenningen, Stian; Gauteplass, Jarand; Hauge, Lars Petter; Barth, Tanja; Fernø, Martin; Ersland, Geir (Peer reviewed; Journal article, 2019)
      This paper reports measurements of relative permeability to methane (CH4) and carbon dioxide (CO2) in hydrate-bearing sandstone core samples. The CH4 (or CO2) permeability was measured at reservoir conditions for different ...
    • Multiscale investigation of CO2 hydrate self-sealing potential for carbon geo-sequestration 

      Gauteplass, Jarand; Almenningen, Stian; Ersland, Geir; Barth, Tanja; Yang, Jinhai; Chapoy, Antonin (Peer reviewed; Journal article, 2020)
      Storage of liquid CO2 in shallow geological formations is a recently proposed concept that can facilitate increased storage capacity and improved mobility control. If stored below the gas hydrate stability zone (GHSZ), ...
    • Population-balance modeling of CO2 foam for CCUS using nanoparticles 

      Eide, Øyvind; Fernø, Martin; Bryant, Steven; Kovscek, Anthony R.; Gauteplass, Jarand (Journal article; Peer reviewed, 2020)
      Foam implementation for carbon capture, utilization and storage (CCUS) can greatly improve CO2 mobility control, resulting in enhanced hydrocarbon production and carbon storage capacity. The use of nanoparticles (NP) to ...
    • Pore- and Core-Scale Insights of Nanoparticle-Stabilized Foam for CO2-Enhanced Oil Recovery 

      Alcorn, Zachary Paul; Føyen, Tore Lyngås; Gauteplass, Jarand; Benali, Benyamine; Soyke, Aleksandra; Fernø, Martin (Journal article; Peer reviewed, 2020)
      Nanoparticles have gained attention for increasing the stability of surfactant-based foams during CO2 foam-enhanced oil recovery (EOR) and CO2 storage. However, the behavior and displacement mechanisms of hybrid ...
    • Pore-level foam generation and flow for mobility control in fractured systems 

      Gauteplass, Jarand; Chaudhary, Kuldeep; Kovscek, Anthony R.; Fernø, Martin A. (Journal article, 2015-03-05)
      Pore-level foam generation, propagation, and sweep efficiency were visualized using silicon-wafer micromodels with an accurate representation of sandstone pore structure, grain shapes and sizes based on thin-section analysis. ...
    • Pore-to-Core Laboratory Upscaling and Visualization of Enhanced Oil Recovery and CO2 Storage 

      Gauteplass, Jarand (Doctoral thesis, 2015-01-09)
      The global energy demand increases, and the need for hydrocarbon reserve growth is evident. The maturation of hydrocarbon formations worldwide combined with declining rate of major oil and gas discoveries, have caused a ...
    • Storing CO2 as solid hydrate in shallow aquifers: Electrical resistivity measurements in hydrate-bearing sandstone 

      Gauteplass, Jarand; Almenningen, Stian; Ersland, Geir (Journal article; Peer reviewed, 2020)
      A recent proposed carbon dioxide (CO2) storage scheme suggests solid CO2 hydrate formation at the base of the hydrate stability zone to facilitate safe, long-term storage of anthropogenic CO2. These high-density hydrate ...
    • Unlocking multimodal PET-MR synergies for geoscience 

      Brattekås, Bergit; Gauteplass, Jarand; Brekke, Njål; Fernø, Martin; Ersland, Geir (Journal article; Peer reviewed, 2020)
      The recent combination of positron emission tomography (PET) and magnetic resonance (MR) imaging modalities in one clinical diagnostic tool represents a scientific advancement with high potential impact in geoscientific ...