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Device for underwater hydrocarbon storage, and corresponding capture and storage installation

Inactive Publication Date: 2012-06-07
C G DORIS CIE GENERAL POUR LES DEVEMENTS OPERATIONNELS DES RICHESSES SOUS MARINES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

[0006]An object of the present invention provides an underwater hydrocarbon storage device that is inexpensive and can be deployed easily and quickly on a vessel of opportunity, of the towboat type, generally able to be mobilized in one or two days.

Problems solved by technology

A recent accident in the Gulf of Mexico revealed the difficulty of controlling and stopping an erupting underwater oil well, when a confinement system cannot maintain the pressure from the well.
Furthermore, in such a situation, capturing and bringing up the fluid is pointless without adequate support on the surface, while the surface means necessary to treat an oil effluent are difficult to mobilize quickly on-site.
However, it involves a heavy rigid structure, difficult to deploy quickly and requiring dedicated vessels, which are generally not available on the site of an offshore oil accident.

Method used

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  • Device for underwater hydrocarbon storage, and corresponding capture and storage installation
  • Device for underwater hydrocarbon storage, and corresponding capture and storage installation
  • Device for underwater hydrocarbon storage, and corresponding capture and storage installation

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Embodiment Construction

[0036]The storage device shown in FIGS. 1 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 comprises, with its accessories that will be described below, a tank R.

[0037]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 FIG. 16. The opening 4 is equipped with a funnel 104 open downwardly.

[0038]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.

[0039]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) an...

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Abstract

A device including a tank adapted to be arranged on a sea bottom having a filling opening is provided. The tank includes an inflatable bladder with an elongated shape, made from a flexible material, provided with the filling opening at one end and equipped with connecting members. At least one cable extends over at least the largest length of the bladder and is connected thereto by the connecting members. The present invention is applicable to the treatment of uncontrolled eruptions of offshore oil wells.

Description

[0001]Priority is hereby claimed to FR 10 59974 filed on Dec. 1, 2010, the entire disclosure of which is hereby incorporated by reference herein.[0002]The present invention relates to an underwater hydrocarbon storage device, of the type comprising a tank adapted to be arranged on a sea bottom and provided with a filling opening.[0003]The invention applies to hydrocarbon recovery on an uncontrolled oil and gas eruption site.BACKGROUND[0004]A recent accident in the Gulf of Mexico revealed the difficulty of controlling and stopping an erupting underwater oil well, when a confinement system cannot maintain the pressure from the well. Furthermore, in such a situation, capturing and bringing up the fluid is pointless without adequate support on the surface, while the surface means necessary to treat an oil effluent are difficult to mobilize quickly on-site.[0005]U.S. Pat. No. 7,448,404 describes a storage device. However, it involves a heavy rigid structure, difficult to deploy quickly a...

Claims

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Application Information

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IPC IPC(8): B65B3/00
CPCB63B21/29B63B35/285B63G8/42B63G8/24E21B43/0122B63C7/006B65D88/78
Inventor CHILLOUX, DAVIDTHIEBAUD, FRANCOIS
Owner C G DORIS CIE GENERAL POUR LES DEVEMENTS OPERATIONNELS DES RICHESSES SOUS MARINES
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