Tor Bjørnstad
Professor emeritus
-
Kjemisk institutt

English version of this page
E-post
tor.bjornstad@kjemi.uio.no
Telefon
+47 22855483
Mobiltelefon
+47 90838408
Rom
VU 63 / 65
Brukernavn
Besøksadresse
Sem Sælands vei 26
Kjemibygningen
0371 OSLO
Postadresse
Postboks 1033 Blindern
0315 OSLO
Publikasjoner
- Silva, Mario; Stray, Helge; Ould Metidji, Mahmoud & Bjørnstad, Tor (2021). Thermal stability and interactions with sedimentary rocks under typical reservoir conditions of selected pyridines investigated as phase partitioning tracers. Upstream Oil and Gas Technology. ISSN 2666-2604. 6 . doi: 10.1016/j.upstre.2021.100033
- Arun, Panneer Selvam; Ould Metidji, Mahmoud; Silva, Mario; Krivokapic, Alexander & Bjørnstad, Tor (2020). Thermo-Sensitive Nanogels for Targeted Tracer Release in Push and Pull Operations, In Edward Behm (ed.), SPE Improved Oil Recovery Conference 2020. Society of Petroleum Engineers. ISBN 978-1-61399-705-5. SPE-200446-MS.
- Silva, Mario & Bjørnstad, Tor (2020). Determination of phase-partitioning tracer candidates in production waters from oilfields based on solid-phase microextraction followed by gas chromatography-tandem mass spectrometry. Journal of Chromatography A. ISSN 0021-9673. 1629 . doi: 10.1016/j.chroma.2020.461508 Fulltekst i vitenarkiv.
- Ould Metidji, Mahmoud; Silva, Mario; Krivokapic, Alexander & Bjørnstad, Tor (2019). Synthesis and Characterization of a Reactive Fluorescent Tracer and its Possible Use for Reservoir Temperature's Data Collection, In IOR 2019 – 20th European Symposium on Improved Oil Recovery. European Association of Geoscientists and Engineers. ISBN 978-94-6282-278-8. Paper.
- Silva, Mario; Ould Metidji, Mahmoud; Stray, Helge & Bjørnstad, Tor (2019). Alkylpyrazines - from the “Dinner Table” to the Oilfield: A New Class of Partitioning Tracers, In IOR 2019 – 20th European Symposium on Improved Oil Recovery. European Association of Geoscientists and Engineers. ISBN 978-94-6282-278-8. Paper.
- Silva, Mario; Stray, Helge & Bjørnstad, Tor (2019). Stability assessment of PITT tracer candidate compounds – The case of pyrazines. Journal of Petroleum Science and Engineering. ISSN 0920-4105. 182 . doi: 10.1016/j.petrol.2019.106269
- Silva, Mario; Stray, Helge & Bjørnstad, Tor (2018). Stability assessment of PITT tracer candidate compounds: the case of benzyl alcohols. Journal of Petroleum Science and Engineering. ISSN 0920-4105. 167, s 517- 523 . doi: 10.1016/j.petrol.2018.04.027 Fulltekst i vitenarkiv.
- Haukås, Jarle; Madland, Merete Vadla; Flornes, Kristin Margrethe; Hiorth, Aksel; Valestrand, Randi; Viig, Sissel Opsahl; Stavland, Arne; Zimmermann, Udo; Jettestuen, Espen; Mebratu, A.; Bjørnstad, Tor; Klöfkorn, Robert; Skjæveland, Svein Magne & Nævdal, Geir (2017). Integration of IOR Research Projects through Generic Case Studies, In Ukjent Ukjent (ed.), 19th European Symposium on Improved Oil Recovery/IOR Norway 2017. European Association of Geoscientists and Engineers. ISBN 978-94-6282-209-2. 130.
- Ould Metidji, Mahmoud; Brichart, Thomas; Bjørnstad, Tor & Ferrando-Climent, Laura (2017). New fluorescent tracers for SWCTT, In Ukjent Ukjent (ed.), 19th European Symposium on Improved Oil Recovery/IOR Norway 2017. European Association of Geoscientists and Engineers. ISBN 978-94-6282-209-2. 19th European Syposium.
- Silva, Mario; Stray, Helge & Bjørnstad, Tor (2017). New Potential Tracer Compounds for Inter-well SOR Determination - Stability at Reservoir Conditions, In Ukjent Ukjent (ed.), 19th European Symposium on Improved Oil Recovery/IOR Norway 2017. European Association of Geoscientists and Engineers. ISBN 978-94-6282-209-2. 87.
- Silva, Mario; Stray, Helge & Bjørnstad, Tor (2017). Studies on New Chemical Tracers for Determination of Residual Oil Saturation in the Inter-Well Region, In X X (ed.), SPE Oklahoma City Oil and Gas Symposium. 27–31 March 2017, Oklahoma City, Oklahoma, USA. Society of Petroleum Engineers. ISBN 978-1-61399-514-3. SPE-185085-MS.
- Wangen, Magnus; Sagen, Jan; Bjørnstad, Tor; Johansen, Harald & Souche, Alban Jean-Rene (2016). Models for Calcium Carbonate Precipitation in the Near-Well Zone by Degassing of CO2. Open Petroleum Engineering Journal. ISSN 1874-8341. 9, s 178- 194 . doi: 10.2174/1874834101609160178 Fulltekst i vitenarkiv. Vis sammendrag
- Stamatakis, Emmanuel; Stubos, A; Bjørnstad, Tor & Muller, Jiri (2013). Calcite scale prediction at the near-well region: A radiotracer approach, In Are Haugan (ed.), TRACER 6 - The 6th International Conference on Tracers and Tracing Methods. Oslo, Norway, June 6-8, 2011. EDP Sciences. ISBN 978-2-7598-1005-5. Paper. s 03004-p.1 - 04004-p.6 Vis sammendrag
- Stavsetra, Liv; Fure, Kristin; Haugan, Are & Bjørnstad, Tor (2013). Development of an oil tracer labelled with Ba-137m. The European Physical Journal Conferences. ISSN 2101-6275. 50:05002 . doi: 10.1051/epjconf/20135005002
- Samadani, Fereshteh; Alstad, Jorolf; Bjørnstad, Tor; Stavsetra, Liv & Omtvedt, Jon Petter (2010). Development of a SISAK extraction system for chemical studies of element 108, hassium. Radiochimica Acta. ISSN 0033-8230. 98(12), s 757- 764 . doi: 10.1524/ract.2010.1787
- Eriksen, Dag Øystein; Haugen, Odd Benny & Bjørnstad, Tor (2009). Enhanced oil recovery methods studied by gamma tracer scanning at simulated reservoir conditions. Journal of Radioanalytical and Nuclear Chemistry. ISSN 0236-5731. 280(2), s 287- 292 . doi: 10.1007/s10967-009-0513-9
- Bjørnstad, Tor; Borroto Portela, J. I.; Brisset, P.; Chankow, N.; Charlton, J.S.; Conejo Solis, M.A.; Dagadu, C.P.K.; Dash, A.; Diaz Vargas, F.; Ghiyas-Ud-Din, x; Jin, J.-H.; Li, J.; Munoz Anrique, L.; Pinto Ferreira, A.; Palige, J.M.; Roesch, F.; Jung, S.-H. & Vargas, C. (2013). Radiotracer Generators for Industrial Applications. International Atomic Energy Agency. ISBN 978-92-0-135410-5. 203 s.
- Abidin, Z.; Berne, P.; Bjørnstad, Tor; Jin, J.-H.; Khan, I.H.; Leclerc, J.-P.; Maggio, E.G.; Moreira, M.R.; Olivar, M.V.; Quang, N.H.; Somaruga, C.; Tang, S.H.J. & Zhang, P. (2012). Application of Radiotracer Techniques for Interwell Studies. International Atomic Energy Agency, IAEA. ISBN 978-92-0-125610-2. 231 s.
- Ould Metidji, Mahmoud; Krivokapic, Alexander; Silva, Mario; Bjørnstad, Tor; Selvam, Arun & Cathles, Lawrence (2019). Contribution to the study on nanoparticles as oil-reservoir tracers.
- Ould Metidji, Mahmoud; Silva, Mario; Krivokapic, Alexander & Bjørnstad, Tor (2019). Synthesis and Characterization of a Reactive Fluorescent Tracer and its Possible Use for Reservoir Temperature's Data Collection.
- Panneer Selvam, Arun Kumar; Ould Metidji, Mahmoud; Silva, Mario; Viig, Sissel Opsahl; Madland, Merete Vadla & Bjørnstad, Tor (2019). Nanoparticle tracers for petroleum reservoir studies.
- Selvam, Arun; Ould Metidji, Mahmoud; Viig, Sissel Opsahl & Bjørnstad, Tor (2019). Nanoparticle tracers for petroleum reservoir studies.
- Silva, Mario; Ould Metidji, Mahmoud; Stray, Helge & Bjørnstad, Tor (2019). Alkylpyrazines - from the “Dinner Table” to the Oilfield: A New Class of Partitioning Tracers.
- Bjørnstad, Tor (2018). On-line analyses of mass transport using neutrons.
- Bjørnstad, Tor; Ould Metidji, Mahmoud; Krivokapic, Alexander & Viig, Sissel Opsahl (2018). Nanoparticles as oil detectives?.
- Ould Metidji, Mahmoud; Krivokapic, Alexander; Silva, Mario; Cathles, Lawrence & Bjørnstad, Tor (2018). Nanotracers intended for EOR-operations.
- OULD-METIDJI, Mahmoud; Lopes Da Silva, M.H.; Ferrando-Climent, L.; Krivokapic, A. & Bjørnstad, Tor (2018). Future Prospect For Reservoir Tracer Technology: Benefits, Obstacles and Development. Vis sammendrag
- Silva, Mario & Bjørnstad, Tor (2018). Non-Conservative Tracers for Temperature Assessment in the Interwell Region of Oil Reservoirs.
- Vinningland, Jan Ludvig; Valestrand, Randi; Hiorth, Aksel; Bjørnstad, Tor; Klöfkorn, Robert; Viig, Sissel Opsahl; Jettestuen, Espen; Skjæveland, Svein Magne; Zimmermann, Udo; Stavland, Arne; Nævdal, Geir & Madland, Merete Vadla (2018). The National IOR Centre of Norway.
- Bjørnstad, Tor (2017). Can functionalized nanoparticles be used as reservoir tracers?.
- Bjørnstad, Tor (2017). Keynote Lecture: Recent development in nuclear methods for process monitoring. Vis sammendrag
- Bjørnstad, Tor (2017). Nuclear-Based Monitoring of Industrial Mass Flow I: The potential use of Small Transportable Neutron Generators. Vis sammendrag
- Bjørnstad, Tor; Stavsetra, Liv; Krivokapic, Alexander; Eriksen, Dag Øistein & Vascon, Alessio (2017). Hydrometallurgy in mineral mining and urban mining.
- Ould Metidji, Mahmoud; Kelesoglu, Serkan; Silva, Mario & Bjørnstad, Tor (2017). Laboratory assessment of nanotracers for oil reservoir characterization.
- Silva, Mario; Stray, Helge & Bjørnstad, Tor (2017). New Chemical Tracers for Determination of Residual Oil Saturation in the Inter-Well Region - Initial Studies.
- Silva, Mario; Stray, Helge & Bjørnstad, Tor (2017). PITT Tracer Candidates: Stability at Reservoir Conditions.
- Bjørnstad, Tor (2016). Reactor-produced radionuclides for tracing operations in industry and civil engineering.
- Bjørnstad, Tor (2016). The possible role of nanoparticle tracers in measurements of residual oil saturation in the near-well area.
- Bjørnstad, Tor (2016). Tracer-based reservoir evaluation and SOR determination.
- Bjørnstad, Tor; Brisset, Patrick; Gardner, Robin Pierce; Kuznetsov, Aleksandr & Moreira, Rubens Martin (2016). Neutron Generators for Tracing Applications.
- Bjørnstad, Tor; Silva, Mario; Brichart, Thomas; Krivokapic, Alexander & Viig, Sissel Opsahl (2016). Development of new tracers for SOR measurements in IW and SW application - Some recent results and future plans.
- Bjørnstad, Tor; Stavsetra, Liv; Fure, Kristin; Opel, Karsten; Haugan, Are & Krivokapic, Alexander (2016). Radiotracer-based monitoring of liquid carry-over from gas scrubbers.
- Silva, Mario & Bjørnstad, Tor (2016). Solid-Phase Microextraction as Sample Preparation Technique in Tracer Technology.
- Bjørnstad, Tor (2015). Mineral exploitation and hydrometallurgical methods.
- Bjørnstad, Tor (2015). Radiotracers Applications in Oil Fields: Enhancing the Recovery of Oil.
- Rollwagen, Joe & Bjørnstad, Tor (2015, 15. september). Mapping it out: Tracer technology and the search for oil. [Fagblad]. IAEA Bulletin, September 2015.
- Abdullah, Jaafar; Alami, Rachad; Abdelwahed, Haifa Ben; Bjørnstad, Tor; Calvo, Carlos Sebastian; Dagadu, Christian Priesley Kofi; Dominguez-Catasus, Judith; Gao, Xiang; Gardner, Robin Pierce; Ud-Din, Ghiyas; Kim, Jong-Bum; Leclerc, Jean-Pierre; Moreira, Rubens Martin; Nguyen Huu, Quang; Palige, Jacek Maria; Goswami, Sunil & Stegowski, Zdizlaw (2014). Radiometric methods for measuring and modelling multiphase systems - progress report No.2.
- Bjørnstad, Tor (2014). A flavour of nano-particles as tracer agents for IOR.
- Bjørnstad, Tor (2014). Aspects of how tracer compounds can contribute to optimize EOR/IOR processes.
- Bjørnstad, Tor (2014). Brief about tracer technology and the National Norwegian IOR-Centre.
- Bjørnstad, Tor (2014). Neutron generators in industry and civil society.
- Bjørnstad, Tor (2014). The Role of Tracers in Optimization of EOR/IOR Operations. Vis sammendrag
- Bjørnstad, Tor (2014). The use of transportable neutron sources for industrial monitoring.
- Bjørnstad, Tor; Haugan, Are; Stavsetra, Liv & Fure, Kristin (2014). Multiphase flow in separators and scrubers: Condition monitoring.
- Bjørnstad, Tor; Haugan, Are; Stavsetra, Liv & Fure, Kristin (2014). Radiotracer generators for application in process industries.
- Bjørnstad, Tor; Jin, Joon-Ha; Calvo, Wilson Aparecido; Boutaine, Jean-Louis; Charlton, Stuart; Leclerc, Jean-Pierre; Johansen, Geir Anton & Brisset, Patrick (2014). Report on the Consultant Meeting on "The Current Status and Future Trends on Radioisotope Applications in Industry".
- Madland, Merete Vadla; Hiorth, Aksel & Bjørnstad, Tor (2014). Presenting the 2 R&D Themes for The National IOR Centre of Norway.
- Bjørnstad, Tor (2013). Application of neutron generators in industry.
- Bjørnstad, Tor (2013). Beyond Traditional Flow Assurance.
- Bjørnstad, Tor (2013). Brief about Petroleum Activities at IFE.
- Bjørnstad, Tor (2013). The Role of Tracer Technology in Future Reservoir Management.
- Bjørnstad, Tor; Eriksen, Dag Øystein & Omtvedt, Jon Petter (2013). Radiochemistry and hydrometallurgy - two synergetic fields.
- Berg, Øivind; Bjørnstad, Tor; Dahlgren, Sven; Nøvik, Sven; Rondeel, Wilhelm & Totland, Arne (2012). Thorium - en framtidsressurs i Oslofjordregionen?.
- Bjørnstad, Tor (2012). Application of gamma-ray detection equipment in the petroleum industry.
- Bjørnstad, Tor (2012). Monitoring Multiphase Flow in Separators and Scrubbers - Combined Radiotracer and Sealed Source Technique.
- Bjørnstad, Tor (2012). Possible development of nuclear technology for industrial monitoring applications.
- Bjørnstad, Tor (2012). Radioaktivitet i vår hverdag - delvis til ulempe men også til nytte og forbedret helse.
- Bjørnstad, Tor (2012). Tracer Technology for Interwell Reservoir Examination - Achievements and Future Challenges.
- Bjørnstad, Tor (2011). Extraction of Th from Norwegian Mineral Resources.
- Bjørnstad, Tor (2011). Flow Assurance Challenges in Geothermal Energy Production - Mineral Scaling.
- Bjørnstad, Tor (2011). Oljedetektivene - de syngende molekyler.
- Bjørnstad, Tor; Dugstad, Ø.; Hartvig, S.K. & Haugan, A. (2011). SAGD-Related Oil Recovery: Fluid Tracing Challenges.
- Fure, K.; Stavsetra, L. & Bjørnstad, Tor (2011). Experimental Studies on Generation of Short-Lived Radiotracers of Daughter Products from the Nuclear Genetic Relationships 68Ge - 68Ga and 137Cs - 137mBa, -a Progress Report.
- Bjørnstad, Tor (2010). Development of tracer technology for EOR and production optimization.
- Bjørnstad, Tor (2010). Doses, dose effects and safe operations.
- Bjørnstad, Tor (2010). In the climate perspective - what is the role of nuclear power?.
- Bjørnstad, Tor (2010). Mechanisms of mineral scaling in geothermal wells studied by nuclear techniques.
- Bjørnstad, Tor (2010). Oil generation, reservoir assessment and petroleum production – a primary.
- Bjørnstad, Tor (2010). Radioactivity and nuclear characteristics – a primary.
- Bjørnstad, Tor (2010). Reservoir management and enhanced oil recovery – the role of tracers.
- Bjørnstad, Tor (2010). Tracer field operations.
- Bjørnstad, Tor (2010). Tracer technology for geothermal reservoir examination.
- Omtvedt, Jon Petter; Alstad, Jorolf; Bjørnstad, Tor; Dullmann, C.E.; Gregorich, K.E.; Gupta, N.S.; Nilssen, Johannes; Nitsche, Heino; Samadani, Fereshteh; Schädel, Matthias & Schulz, Frøydis (2010). Superheavy Element Chemistry with SISAK.
- Samadani, Fereshteh; Omtvedt, Jon Petter & Bjørnstad, Tor (2010). Liquid Chemistry of Hassium Tetroxide using Osmium in Model Experiments with SISAK.
- Eriksen, Dag Øystein; Haugan, Are; Bjørnstad, Tor; Halvorsen, S.G; Torgersen, H.J.T.; Haugen, Odd Benny & Brattheim, Sigurd (2009). A two-dimensional gamma scanner for performing flooding experiments at oil reservoir conditions. INCS News. VI(4), s 7- 13
- Bjørnstad, Tor (2009). Mercury in petroleum – technical and HSE challenges.
- Bjørnstad, Tor (2009). The use of radioisotope technology on well operation, oil transportation and process studies of petroleum reservoirs.
- Bjørnstad, Tor; Borroto, J.I.P.; Brisset, P.; Chakravarty, R.; Chankow, N.; Charlton, J.S.; Dagadu, C.P.K.; Pinto, A.F.; Jung, S.-H.; Li, J.; Munos, L.A.; Palige, J.M.; Roesch, F.; Ghiyas-Ud-Din, x & Vargas, C.E. (2009). Evaluation and validation of radioisotope generator-based radiotracers for industrial applications - 2nd progress report.
- Bjørnstad, Tor; Fure, Kristin & Stavsetra, Liv (2009). Development of industrial radiotracer generators at IFE - chemical, toxic and radiotoxic considerations.
- Hassfjell, Sindre; Haugan, Are & Bjørnstad, Tor (2009). 47Ca-aided studies of CaCO3 scaling rates at low saturation ratios.
- Eriksen, Dag Øystein; Haugan, Are; Bjørnstad, Tor; Halvorsen, Sigbjørn Gottskalk; Torgersen, Hans Jakob Texmo; Haugen, Odd Benny & Bratheim, Sigurd (2008). A two-dimensional gamma scanner for performing flooding experiments at oil reservoir conditions.
- Bjørnstad, Tor (2008). Application of tracers in oil reservoir examinations.
- Bjørnstad, Tor (2008). Development of tracer technology for production optimization.
- Bjørnstad, Tor (2008). Exploration and Production R&D at Institute for Energy Technology.
- Bjørnstad, Tor (2008). Impairment of flow in near-well zones by mineral scaling.
- Bjørnstad, Tor (2008). Interwell tracer technology.
- Bjørnstad, Tor (2008). Interwell tracer technology - past, present and future.
- Bjørnstad, Tor (2008). Recent advances in tracer technology for production optimization.
- Bjørnstad, Tor (2008). Tracers and reservoir architecture.
- Bjørnstad, Tor; Eriksen, Dag Øystein & Yan, Gonglai (2008). Studies on separation of tracer concentrations of radiolabelled [Co(CN)6]3- from radiolabelled SCN- in water samples.
Publisert 12. juli 2010 14:42
- Sist endret 14. mars 2011 15:26