METHOD AND SYSTEM FOR REMOVAL OF OIL UNDER ICE Russian patent published in 2018 - IPC E02B15/04 

FIELD: hydraulic structures.

SUBSTANCE: group of inventions relates to the removal of oil under ice. Opening is made in ice. Two oil booms (2) able to be pressed against the lower surface of ice are provided under ice so as to extend in different directions from the opening, jointly constituting an angle of less than 180°. Oil collection device is provided in the opening and a flow directed towards the opening is provided by introducing a propulsion device under ice from a second opening made into ice on the lower surface of ice in the area of said angle so as to transfer the oil on the lower surface of ice towards the opening and the oil collection device by the guidance of the booms to recover the oil. Device includes oil booms extending under ice in two different directions from said opening so as to constitute an angle of less than 180 degrees between each other. Device also includes an oil collection device placed in the opening, and a propulsion device placed on the level of the lower surface of ice at a distance from the opening in the area of said angle so as to provide a flow directed towards the opening between the oil booms in the area of the angle.

EFFECT: higher efficiency of removal of oil and similar substances from the bottom surface of solid ice.

4 cl, 1 dwg