Blar i SINTEF Open på forfatter "Brandvik, Per Johan"
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A Proposed New Laboratory Protocol for Dispersant Effectiveness Testing Adapted for Subsea Dispersant Injection
Daling, Per Snorre; Leirvik, Frode; Krause, Daniel Franklin; Makatounis, Panagiotis Eleftherios; Dunnebier, Dorien Anna Engelbertha; Brandvik, Per Johan (Journal article, 2019-05)The main objective of this study is to develop a new protocol for bench-scale dispersant effectiveness testing adapted for subsea dispersants injection (SSDI). The new approach includes turbulence conditions, dispersant ... -
Comparison of predicted properties of Ekofisk oils based on Crude Assay data - Evaluation of the predicted behaviour of satellites relative to previous studies.
Hellstrøm, Kaja Cecilie; Brandvik, Per Johan (SINTEF reports;A27361, Research report, 2015-12-03) -
JIP oil in ice summary report
Sørstrøm, Stein Erik; Brandvik, Per Johan; Buist, Ian; Dickins, David; Faksness, Liv-Guri; Potter, Steve; Rasmussen, Janne Fritt; Singsaas, Ivar (SINTEF rapport;A14181, Research report, 2010-04-10)The Joint Industry Program on oil spill contingency for Arctic and Ice-covered waters was established in 2006 and completed by the end of 2009. Acknowledging the fact that the Arctic exhibits different environments in the ... -
Large-scale basin testing to simulate realistic oil droplet distributions from subsea release of oil and the effect of subsea dispersant injection
Brandvik, Per Johan; Davies, Emlyn John; Leirvik, Frode; Johansen, Øistein; Belore, Randy (Peer reviewed; Journal article, 2021)Small-scale experiments performed at SINTEF, Norway in 2011–12 led to the development of a modified Weber scaling algorithm. The algorithm predicts initial oil droplet sizes (d50) from a subsea oil and gas blowout. It was ... -
Management of oil spill contamination in the Gulf of Patras caused by an accidental subsea blowout
Makatounis, Panagiotis Eleftherios; Skancke, Jørgen; Florou, Evanthia; Stamou, Anastasios; Brandvik, Per Johan (Journal article; Peer reviewed, 2017-12)A methodology is presented and applied to assess the oil contamination probability in the Gulf of Patras and the environmental impacts on the environmentally sensitive area of Mesolongi – Aitoliko coastal lagoons, and to ... -
Modernisation and updating of SINTEF Oil Weathering Model (OWM} - Extending and recalibration of the Crude Assay (CA) module in SINTEF OWM
Brandvik, Per Johan; Hellstrøm, Kaja Cecilie; Sørheim, Kristin Rist (SINTEF Ocean rapporter;OC2018 A-040, Research report, 2018-05-15)SINTEF har siden åttitallet foretatt forvitringsstudier på en rekke oljetyper (både norske og utenlandske). Hovedmålsettingen med disse forvitringsstudiene har vært å predikere oljenes forvitringsegenskaper dvs. hvordan ... -
Reducing oil droplet sizes from a subsea oil and gas release by water jetting a laboratory study performed at different scales
Brandvik, Per Johan; Davies, Emlyn John; Krause, Daniel Franklin; Leirvik, Frode; Daling, Per Snorre (Peer reviewed; Journal article, 2023)The main objective of subsea mechanical dispersion (SSMD) is to reduce the oil droplet sizes from a subsea oil release, thereby influencing the fate and behaviour of the released oil in the marine environment. Subsea water ... -
Simulating dispersion of oils from a subsea release comparing mechanical and chemically enhanced dispersion — An experimental study of the influence of oil properties
Brandvik, Per Johan; Leirvik, Frode; Hofstad, Karina A. Heitnes; McKeever, Thomas J. (Peer reviewed; Journal article, 2023)The main objective with subsea mechanical dispersion (SSMD) is to influence the fate of an oil spill in the marine environment by significantly reducing oil droplet sizes from subsea release of oil. Earlier studies have ... -
SubSea Dispersant lnjection (SSDI)- a "state of the art" and the need for further documentations
Daling, Per Snorre; Brakstad, Odd Gunnar; Brandvik, Per Johan; Davies, Emlyn J.; Grøsvik, Bjørn Einar; Meier, Sonnich; Nepstad, Raymond; Nordtug, Trond; Vikebø, Frode Bendiksen (SINTEF Ocean reports;2017:00007 A, Research report, 2016-01-08)The aim of this pre-project has been to give a "State-of the art" and describe the R&D challenges and documentation needed in order to perform robust NEBA (Net Environmental Benefit Analysis) where SubSea Dispersant Injection ... -
Subsurface oil releases - Verification of dispersant effectiveness under high pressure
Brandvik, Per Johan; Davies, Emlyn John; Bradly, Cole; Storey, Chris; Leirvik, Frode (SINTEF reports;A27469, Research report, 2016-01-21)The main objective with this project was to study possible pressure dependency of droplet formation in case of a subsea blow out of oil and the effectiveness of subsea dispersant injection (SSDI). The droplet sizes ... -
The sensitivity of the surface oil signature to subsurface dispersant injection and weather conditions
Daae, Ragnhild Lundmark; Skancke, Jørgen; Brandvik, Per Johan; Faksness, Liv Guri (Journal article; Peer reviewed, 2018-02)Subsea blowouts have the potential to spread oil across large geographical areas, and subsea dispersant injection (SSDI) is a response option targeted at reducing the impact of a blowout, especially reducing persistent ... -
The use of wide-band transmittance imaging to size and classify suspended particulate matter in seawater
Davies, Emlyn John; Brandvik, Per Johan; Leirvik, Frode; Nepstad, Raymond (Journal article; Peer reviewed, 2017-02-02)An in situ particle imaging system for measurement of high concentrations of suspended particles ranging from 30 μm to several mm in diameter, is presented. The system obtains quasi-silhouettes of particles suspended within ...