Fig. 5

The tower basin for oil pill test. A the tower basin facility showing the ventilated hood, scaffolding, staircase, and the railings to ensure safe working conditions (Brandvik et al. 2013); B principles for the scaffolding/railing around the tower, ventilated hood and overflow system to collect surface oil from the top of the tower (Brandvik et al. 2013); C view of the oil injection system at the bottom of the Tower Basin (Brandvik et al. 2013); D Principle overview of the set-up showing how oil, gas and dispersant are released during the experiments (Brandvik et al. 2014)