A DOUBLE WALL COMPARTMENTED TANK FOR UNDERSEA LIQUID STORAGE

Title:

A DOUBLE WALL COMPARTMENTED TANK FOR UNDERSEA LIQUID STORAGE

Document Type and Number:

WIPO Patent Application WO/2014/032107

Kind Code:

A3

Abstract:

A tank for storage of hydrocarbon liquids on the seabed, being of double hull construction which is compartmented to form a plurality of chambers, such that the tank may be safely towed from its build location or shipyard, to offshore deployment location as marine warranty compliant vessel, having appropriate intact and damaged stability characteristics. There is also provided a method for deploying a tank for storage of hydrocarbon liquids on the seabed, the method comprising the step of towing the tank having un-ballasted storage areas and compartments to the location of deployment; flooding at least partially the storage area to achieve substantial neutral buoyancy of the tank to allow decent of the tank up to a submerged equilibrium; allowing decent of the tank to the seabed and injecting air into at least one compartment for maintaining equilibrium between the pressure applied by the surrounding sea and the pressure inside compartments and storage area.

Inventors:

ROBERTS ALAN (AU)

Application Number:

PCT/AU2013/000972

Publication Date:

September 24, 2015

Filing Date:

August 29, 2013

Export Citation:

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Assignee:

SEACAPTAUR IP LTD (AU)

International Classes:

B65D88/78; B65D90/02

Foreign References:

GB1467238A	1977-03-16
US4660606A	1987-04-28
US20110013989A1	2011-01-20
US4162658A	1979-07-31
GB1354258A	1974-06-05
US3708987A	1973-01-09
GB2325485A	1998-11-25

Other References: