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Underwater flexible storage device and use method

A storage device, flexible technology, applied in packaging, transportation and packaging, containers, etc., can solve the problems of lack of flexibility, storage medium easily contaminated, unable to adapt to pressure changes, etc., to achieve flexible storage capacity, installation and maintenance Convenience and stability

Active Publication Date: 2022-02-25
CHINA NATIONAL OFFSHORE OIL (CHINA) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the underwater oil storage tank is economical, it is still not suitable for deep sea storage due to its structural limitations, and there is a shortcoming that the storage medium is easily polluted
[0003]There are currently some flexible underwater oil and gas storage devices, which are difficult to maintain effectively due to their large volume, lack of flexibility, and inability to adapt to the pressure in the storage process Changes, or failure to provide secondary protection after leakage

Method used

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  • Underwater flexible storage device and use method
  • Underwater flexible storage device and use method
  • Underwater flexible storage device and use method

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Experimental program
Comparison scheme
Effect test

Embodiment approach

[0042] According to one embodiment of the present invention, the shape of the shell body is similar to the shape of the flexible pouch after it is filled.

[0043] According to one embodiment of the present invention, the inner volume of the rigid shell is 3-5% larger than the volume of the flexible pouch when filled.

[0044] According to one embodiment of the present invention, the ratio of the horizontal length to the height of the flexible pouch 10 when it is full is 4:1.

[0045] According to one embodiment of the present invention, the flexible pouch 10 is a horizontal cylinder or a flat body when filled. The shape of the flexible pouch 10 when filled can also be other regular or irregular shapes.

[0046] In order to adapt to the position change of the internal flexible bladder, when the density of the liquid stored in the flexible bladder is lower than that of seawater, the seawater inlet and outlet are arranged at the lower part of the rigid shell; when the density o...

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Abstract

The invention relates to an underwater flexible storage device and a use method. The device comprises: a flexible bag which is configured to be arranged in a rigid shell in a contraction or expansion mode, wherein an inner containing cavity of the flexible bag is used for storing liquid, a stored liquid inlet and outlet is formed in the flexible bag, the stored liquid inlet and outlet is communicated with the inner side of the flexible bag in a sealed mode from the outer side of the rigid shell, and the flexible bag is of a horizontal structure; and a rigid shell which comprises a shell body, wherein an inner containing cavity of the rigid shell is larger than the volume of the flexible bag when the flexible bag is filled, the rigid shell comprises a seawater inlet and outlet and a pressure relief opening, and the seawater inlet and outlet and the pressure relief opening are communicated with the outer portion of the rigid shell and the space between the outer side of the flexible bag and the inner side of the rigid shell. The device is good in deepwater adaptability, high in safety, good in stability and light and flexible in overall structure.

Description

technical field [0001] The invention relates to the technical field of underwater liquid medium storage such as petroleum or chemical agents, and in particular relates to an underwater flexible storage device and a use method. Background technique [0002] With the continuous exploration of offshore oil fields, the exploitation scope of offshore oil fields has gradually expanded to the ocean. Therefore, in response to the needs of submarine crude oil production facilities, it is necessary to set up storage structures on platforms or seabeds to store crude oil or chemicals. At present, the storage facilities mainly used in the sea mainly include gravity oil storage platforms, Spar platforms, jack-up production platforms and underwater oil storage tanks. However, the working water depth of the gravity oil storage platform is relatively shallow, which cannot meet the needs of deep sea storage, and the cost is expensive and the storage volume selection is not flexible enough. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D88/78B65D90/20B65D90/32B65D90/02
CPCB65D88/78B65D90/20B65D90/32B65D90/02B65D2590/023B65D2590/026
Inventor 李清平刘永飞王金龙罗小明秦蕊朱军龙姚海元郑利军
Owner CHINA NATIONAL OFFSHORE OIL (CHINA) CO LTD
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