Patent ID: 9470365
Filing Date: 2016-10-18
CPC Classification: B65D,F17C

Claim Text:
1. A storage tank for storing liquids in a subsea environment, comprising: a. a protective enclosure for positioning on a seafloor wherein the protective enclosure comprises at least one compartment therein and a removable cover; b. a container within each of the at least one compartment of the protective enclosure wherein each container comprises an outer flexible bladder and an inner flexible bladder positioned within and spaced a distance from the outer flexible bladder; such that the inner flexible bladder is capable of containing an inner liquid and a space is provided between the inner flexible bladder and the outer flexible bladder capable of containing an outer liquid; c. an inner flexible bladder liquid inlet capable of connecting a source of the inner liquid to the inner flexible bladder; d. an inner flexible bladder liquid outlet capable of connecting the inner flexible bladder to an inner liquid line external to the protective enclosure; and e. a recirculation loop for circulating the outer liquid in the space between the inner flexible bladder in the outer flexible bladder, comprising: