US 201113307664 A description the storage device shown in fig1 to 5 essentially comprises an inflatable bladder 1 made up of a suitable material in particular an elastomer or a polyurethane possibly reinforced with a geotextile layer said bladder constitutes with its accessories that will be described below a tank r the bladder 1 has a very large length and is made up of three juxtaposed strings 2 of compartments 3 all of the compartments 3 communicate with each other so that the bladder can be completely inflated from a filling opening 4 provided at one of its ends visible in fig1 the opening 4 is equipped with a funnel 104 open downwardly each compartment 3 is connected by welding and or sewing to the adjacent compartments by flat strips 5 at certain points of which communication passages or tunnels 6 with large diameters are provided as is well known offshore eruptions are generally made up of a mixture of oil gas and water at a high pressure around 100 to 300 bars and high temperature around 50 to 80 u00b0 c upon cooling in contact with the sea water and due to the relaxation the viscosity of the oil.