• CO2 mobility reduction using foam stabilized by CO2- and water-soluble surfactants 

      Føyen, Tore Lyngås; Alcorn, Zachary Paul; Fernø, Martin; Barrabino, Albert; Holt, Torleif (Journal article; Peer reviewed, 2021)
      Foam can reduce CO2 mobility to improve the sweep efficiency during injection into subsurface geological formations for CO2 storage and enhanced oil recovery. However, CO2 foams are thermodynamically unstable, so they must ...
    • 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 ...
    • Comparison of residual oil cluster size distribution, morphology and saturation in oil-wet and water-wet sandstone 

      Iglauer, Stefan; Fernø, Martin; Shearing, Paul; Blunt, Martin (Peer reviewed; Journal article, 2012-06-01)
      We imaged an oil-wet sandstone at residual oil saturation (Sor) conditions using X-ray micro-tomography with a nominal voxel size of (9 μm)3 and monochromatic light from a synchrotron source. The sandstone was rendered ...
    • Core-scale sensitivity study of CO2 foam injection strategies for mobility control, enhanced oil recovery, and CO2 storage 

      Alcorn, Zachary Paul; Fredriksen, Sunniva; Sharma, Mohan; Føyen, Tore Lyngås; Wergeland, Connie; Fernø, Martin; Graue, Arne; Ersland, Geir (Journal article; Peer reviewed, 2020)
      This paper presents experimental and numerical sensitivity studies to assist injection strategy design for an ongoing CO2 foam field pilot. The aim is to increase the success of in-situ CO2 foam generation and propagation ...
    • Dos and Don’ts When Developing a System to Investigate Spontaneous Imbibition in Unconsolicdated Porous Media 

      Brattekås, Bergit; Føyen, Tore Lyngås; Vabø, Trond; Haugland, Håkon; Reite, Simon I.; Saunes, Anders S.; Fernø, Martin (Peer reviewed; Journal article, 2019)
      This paper describes the development of a consistent model system to measure spontaneous imbibition and determine saturation functions in unconsolidated porous media. Sand grains or glass beads were packed in up to 0.5 m ...
    • 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 ...
    • Increased CO2 storage capacity using CO2-foam 

      Føyen, Tore Lyngås; Brattekås, Bergit; Fernø, Martin; Barrabino, Albert; Holt, Torleif (Journal article; Peer reviewed, 2020)
      Reduction of the CO2 mobility is beneficial during subsurface sequestration of anthropogenic CO2 in saline aquifers and hydrocarbon reservoirs by mitigating flow instabilities leading to early gas breakthrough and poor ...
    • 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 ...
    • 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 ...
    • 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 ...