Blar i Institutt for fysikk på forfatter "Gawel, Kamila"

Viser treff 1-10 av 10

    • Carbonation of silica cement at high-temperature well conditions 

      Bjørge, Ruben; Gawel, Kamila; Chavez Panduro, Elvia Anabela; Torsæter, Malin (Journal article; Peer reviewed, 2019)
      Cements for well environments with temperatures above 110 °C are typically designed with silica additions. This is the case for many of the wells in the North Sea, which is a region promising for large-scale geological ...

    • Closing of Micro-cavities in Well Cement upon Exposure to CO2 Brine 

      Chavez Panduro, Elvia Anabela; Torsæter, Malin; Gawel, Kamila; Bjørge, Ruben; Gibaud, Alain; Yang, Yi; Sørensen, Henning; Frykman, Peter; Kjøller, Claus; Breiby, Dag Werner (Journal article; Peer reviewed, 2017)
      Long-lasting cement plugging of wells is crucial for successful CO2 storage in underground reservoirs. It requires a profoundly improved understanding of the behavior of fractured cement under realistic subsurface conditions ...

    • Computed X-ray Tomography Study of Carbonate Precipitation in Large Portland Cement Pores 

      Chavez Panduro, Elvia Anabela; Torsæter, Malin; Gawel, Kamila; Bjørge, Ruben; Gibaud, Alain; Bonnin, Anne; Schlepütz, Christian M.; Breiby, Dag Werner (Journal article; Peer reviewed, 2019)
      Cement degradation caused by CO2 exposure is an increasingly important environmental challenge that must be understood, for example, if former oil reservoirs are to be used for CO2 storage. When exposed to CO2-saturated ...

    • Electrochemical enhancement and inhibition of calcium carbonate deposition 

      Edvardsen, Laura; Gawel, Kamila; Torsæter, Malin; Gawel, Bartlomiej; Wenner, Sigurd (Peer reviewed; Journal article, 2020)
      Calcium carbonate is by far the most widespread scaling material. Its deposition in pipes and flowlines has been a long-standing problem for many industries. Hence, a lot of research is devoted to scale inhibition. One of ...

    • High resolution interferometry as a tool for characterization of swelling of weakly charged hydrogels subjected to amphiphile and cyclodextrin exposure 

      Gao, Ming; Gawel, Kamila; Stokke, Bjørn Torger (Journal article; Peer reviewed, 2013)
      A high resolution interferometric technique was used to determine swelling behavior of weakly charged polyacrylamide hydrogels in the presence of oppositely charged surfactants and subsequent exposure to cyclodextrins. ...

    • Real Time 3D Observations of Portland Cement Carbonation at CO2 Storage Conditions 

      Chavez Panduro, Elvia Anabela; Cordonnier, Benoit; Gawel, Kamila; Børve, Ingrid; Iyer, Jaisree; Carroll, Susan; Michels, Leander; Rogowska, Melania; McBeck, Jessica Ann; Sørensen, Henning; Walsh, Stuart; Renard, Francois; Gibaud, Alain; Torsæter, Malin; Breiby, Dag Werner (Peer reviewed; Journal article, 2020)
      Depleted oil reservoirs are considered a viable solution to the global challenge of CO2 storage. A key concern is whether the wells can be suitably sealed with cement to hinder the escape of CO2. Under reservoir conditions, ...

    • Responsive Hydrogels for Label-Free Signal Transduction within Biosensors 

      Gawel, Kamila; Barriet, David; Sletmoen, Marit; Stokke, Bjørn Torger (Journal article; Peer reviewed, 2010)
      Hydrogels have found wide application in biosensors due to their versatile nature. This family of materials is applied in biosensing either to increase the loading capacity compared to two-dimensional surfaces, or to support ...

    • Salt clogging during supercritical CO2 injection into a downscaled borehole model 

      Berntsen, Andreas Nicolas; Todorovic, Jelena; Raphaug, Martin Hagen; Torsæter, Malin; Chavez Panduro, Elvia Anabela; Gawel, Kamila (Journal article; Peer reviewed, 2019)
      Injection of CO2 into saline storage aquifers is often accompanied by drying of the formation water and salt precipitation. Subsequent salt clogging of a well bore and the near wellbore rock matrix may lead to injectivity ...

    • Swelling Dynamics of a DNA-Polymer Hybrid Hydrogel Prepared Using Polyethylene Glycol as a Porogen 

      Gao, Ming; Gawel, Kamila; Stokke, Bjørn Torger (Peer reviewed; Journal article, 2015)
      DNA-polyacrylamide hybrid hydrogels designed with covalent and double-stranded (dsDNA) crosslinks respond to specific single-stranded DNA (ssDNA) probes by adapting new equilibrium swelling volume. The ssDNA probes need ...

    • Swelling of a hemi-ellipsoidal ionic hydrogel for determination of material properties of deposited thin polymer films: an inverse finite element approach 

      Prot, Victorien Emile; Sveinsson, Hrafn Mar; Gawel, Kamila; Gao, Ming; Skallerud, Bjørn Helge; Stokke, Bjørn Torger (Journal article; Peer reviewed, 2013)
      Selective deposition of polymers at the surface of an ionic hydrogel is conventionally used to tailor properties of the composite material for application in for instance drug release and cell encapsulation. Here we describe ...