Interfacial tension between oil and seawater as a function of dispersant dosage

MARINE POLLUTION BULLETIN

卷:143

Article

Brandvik, Per Johan¹  Daling, Per S.¹  Leirvik, Frode¹  Krause, Daniel F.¹ 

[1] SINTEF Ocean, Marine Environm Technol, Trondheim, Norway

关键词: Subsea;    Droplet formation;    Dispersants;    Dosage;    Interfacial tension;    Oil;   

DOI  :  10.1016/j.marpolbul.2019.04.019

来源: Elsevier

【 摘 要 】

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 dispersants were tested with four oil types to give a large variation in oil properties (paraffinic, light, waxy and asphaltenic). A general expression for IFT(oil-water) as a function of dispersant dosage is proposed based on the compiled data. IFT(oil-water) versus dosage is needed by algorithms to predict oil droplet sizes from subsea releases. However, such a relationship based on averaged data should be used with care and IFf measurements on the actual oil-dispersant combination should always be preferred.

【 授权许可】

Free