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Frode Leirvik

Senior Engineer

Frode Leirvik

Senior Engineer

Frode Leirvik
Phone: 982 43 457
Department: Environment and New Resources
Office: Trondheim

Publications and responsibilities

Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1705868

This paper presents a compilation of data describing interfacial tension between oil and seawater (IFT(oil-water)) as a function of dispersant dosage. The data are from several earlier laboratory studies simulating subsea oil blowouts to evaluate subsea injection of dispersant (SSDI). Three dispersa...

Year 2019
Type Journal publication
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1625027

BC (smake particulate) was measured in the emissions from the Rolvsnes well test flare from the 6th - 9th of August 2018. Approximately 90% of the measured particulate matter was in the PM I range (1 micron in diameter and smaller). Smoke particulate this small can stay airborne for considerable tim...

Year 2018
Type Report/thesis
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1621793

The main objective with this study has been to study injection techniques for subsea dispersant injection (SSDI) to recommend techniques relevant for both laboratory studies and operational response equipment. The most significant factor was the injection point of the dispersant in relation to the r...

Year 2018
Type Journal publication
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1574184

A weathering study has been conducted on Brasse crude oil. This study included a small­scale laboratory study and a meso-scale flume basin experiment. In addition, standardized dispersibility tests was conducted on various dispersants and their efficiency was determined using the SINTEF Minitow...

Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1568180

The objective of this paper is to provide a simple extension of the much-used gravity spreading model for oil on calm water to account for the spreading behavior of waxy crude oils in cold waters – including the observed retardation and eventual termination of spreading at certain oil film thickness...

Year 2018
Type Journal publication
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1569848

We compare the observed dynamics of subsea starting plumes with multiphase computational fluid dynamics (CFD) simulations. In the event of subsea loss of containment of either natural gas or carbon dioxide it is important to understand how the gas disperses in the ocean column and acends to the surf...

Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1479783

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 an open-path sample volume of up to 5 cm in length. Benchmarking against sph...

Year 2017
Type Journal publication
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1482653

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 documented by the SINTEF Silhouette Camera from comparable experiments (nozzle, oil t...

Authors Brandvik Per Johan Davies Emlyn John Bradly Cole Storey Chris Leirvik Frode
Year 2016
Type Report/thesis
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1268929

The main objective for this project was to develop a protocol for conducting bench-top effectiveness testing of subsea injection of dispersants.  The dispersant effectiveness is quantified as a shift in oil droplet size distribution for the chemically dispersed oil compared to the untreated oil...

Year 2014
Type Report/thesis