Offshore submarine storage facility for highly chilled liquified

Details Offshore submarine storage facility for highly chilled liquified Offshore submarine storage facility for highly chilled liquified

1980-07-21

1982-12-28

Basinger, Sherman D.

Ships

Floating platform

Multiple leg

62 45, 114257, 220 8, 405200, 405205, 405210, B63B 3544, E02B 1700, F17C 112

Patent

active

043655769

ABSTRACT:
Improvements in an offshore platform and submarine storage facility for highly chilled liquified gas, such as liquified natural gas, are disclosed. The improved facility includes an elongated, vertically oriented submerged anchoring frame to which one or more insulated storage tanks are moveably mounted so they can be positioned at a selected depth in the water. The double piston tank is constructed with improved seals to transfer ambient water pressure of the selected depth to the cryogenic liquified gas without intermixture. This transferred pressure at the depth selected aids in maintaining the liquified state of the stored liquified gas. Structural improvements to the tank facilitating ballasting, locking the double piston cylinders together and further facilitating surface access to the tank for inspection, repairs and removal, and structural improvements to the platform are disclosed.

REFERENCES:
patent: 2280728 (1942-04-01), Streib
patent: 2947437 (1960-08-01), Greer
patent: 3265408 (1966-08-01), Dickie
patent: 3643447 (1972-02-01), Pogonowski
patent: 3675431 (1972-07-01), Jackson
patent: 3727418 (1973-04-01), Glazier
patent: 3828565 (1974-08-01), McCabe
patent: 3837310 (1974-09-01), Toyama
patent: 4232983 (1980-11-01), Cook et al.

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