Splitable pipe bundle for emergency use in case of oil spill underwater

Abstract

The application provides a detachable pipe bundle for underwater oil spill emergency, comprising a pipe bundle pipe body, a hose inner layer arranged inside the pipe bundle pipe body, and a magnetically coated layer arranged outside the hose inner layer and capable of being magnetized and demagnetized. The magnetically coated layer is magnetized in different areas by a magnetizer. The application has the beneficial effect of solving the problem of winding and kinking of multiple underwater hoses by covering the outer layer of each hose with a magnetically coated material capable of being magnetized and demagnetized. When an oil spill emergency occurs, the hoses are lowered by starting the magnetizer to magnetize the magnetically coated material in different areas, thereby forming N and S magnetic poles in different areas. After the hoses are laid underwater, each hose is attracted to each other under the magnetic force of the N and S magnetic poles, and the hoses are collected to form a pipe bundle, thereby effectively dealing with the oil spill accident caused by the leakage of an underwater production system. After use, the magnetic attraction between the multiple hoses is removed, and the hoses can be independently stored. The overall structure of the scheme is simple, the operation is convenient, and the scheme is suitable for popularization and use.

Description

Technical Field

[0001] This invention relates to the field of marine environmental technology, and more specifically to a detachable tubing bundle for underwater oil spill emergency response. Background Technology

[0002] In recent years, offshore oil and gas field development has gradually shifted from shallow water to deep water. This has led to an increasing risk of oil spills in deep-water oil and gas fields. To avoid significant ecological damage from deep-water oil spills and to address the shortcomings of existing surface emergency equipment, there is an urgent need for oil spill emergency equipment specifically designed for deep-water operations. Underwater oil spill emergencies require the use of various pipelines, such as kill fluid injection hoses, underwater dispersant injection hoses, natural gas hydrate injection hoses, oil spill recovery hoses, and natural gas recovery hoses. These pipelines contain different fluids and have significantly different materials. Therefore, on surface vessels, these hoses need to be stored wound on their own individual reels. However, once lowered underwater, these hoses become entangled and interfere with each other under the influence of waves, seabed currents, and their own torque. In extreme cases, they can even form a tangled mess, severely hindering oil spill emergency operations.

[0003] To address the problem of multiple underwater hoses becoming tangled and twisted, two main methods exist both domestically and internationally: First, using hose clamps or straps to connect and bundle multiple underwater hoses together, as seen in invention patents CN102705317B, US6357966B1, and JPH038663A. Second, using polymer materials to completely encase multiple underwater hoses into a bundle, as seen in invention patent WO2018197030A1. This method has been further developed to form an umbilical cable comprising various pipelines and cables. These existing methods can fix multiple hoses into a bundle underwater, avoiding the problem of tangling and twisting.

[0004] After the oil spill emergency operation is completed, multiple hoses need to be recovered. On surface vessels, these hoses need to be disassembled separately and wound onto their own individual reels. These existing methods require disassembling the clamps, straps, or polymer materials binding the hose bundles, making it difficult to quickly and efficiently separate the bundles and failing to meet the requirement of bundling multiple hoses underwater and storing them independently on the surface. Summary of the Invention

[0005] This invention overcomes the shortcomings of the prior art and provides a detachable tubing bundle for underwater oil spill emergency response.

[0006] The objective of this invention is achieved through the following technical solution.

[0007] A detachable tubing bundle for underwater oil spill emergency response includes a tubing body, an inner hose layer inside the tubing body, and a magnetic coating layer that can be charged and demagnetized.

[0008] The tube bundle is placed inside the drum in an unmagnetized state. The tube bundle is demagnetized and magnetized by matching demagnetizers and magnetizers, respectively.

[0009] The magnetic coating layer that can be recharged and demagnetized is magnetized in sections using a magnetizer.

[0010] The magnetic coating layer, which can be recharged and demagnetized, is laterally magnetized in sections using a magnetizer to form regional N and S magnetic poles.

[0011] The magnetic coating layer, which can be charged and demagnetized, is longitudinally charged in sections by a magnetizer to form regional N and S magnetic poles.

[0012] The inner layer of the hose includes an inner liner, a skeleton layer, an armor layer, and a protective layer, which are fixedly connected layer by layer from the inside to the outside.

[0013] The rechargeable and demagnetizable magnetic coating layer includes a magnetic layer and a wear-resistant layer, with the wear-resistant layer nested outside the magnetic layer.

[0014] After the tube bundle is magnetized, the gaps between multiple tube bundles are filled by a filling cable. The filling cable has multiple adsorption grooves that match the tube bundle. The filling cable includes an armor layer, a magnetic coating layer, and a wear-resistant layer, which are arranged layer by layer from the inside to the outside.

[0015] The cross-section of the filler cable has two symmetrical adsorption grooves, forming an hourglass structure.

[0016] The cross-section of the filler cable has three equally spaced adsorption grooves in a triangular shape.

[0017] The beneficial effects of this invention are as follows: This invention provides a detachable tubular bundle that solves the problem of tangling and twisting of multiple underwater hoses by covering the outer layer of each hose with a rechargeable and demagnetizable magnetic coating material, forming a bundle body. When normally stored on a surface vessel, the tubular bundle and filler cable are wound on their respective independent reels, with the magnetic coating material in an unmagnetized state. In the event of an oil spill emergency, the tubular bundle and filler cable are lowered, and a magnetizer is used to magnetize the unmagnetized magnetic coating material in sections, forming regional N and S magnetic poles. After the hoses are deployed underwater, under the magnetic force of the N and S poles, each tubular bundle attracts each other and assembles with the filler cable to form a bundle, effectively responding to oil spills from underwater production systems. After the oil spill emergency ends, the tubular bundle and filler cable are retrieved to the surface vessel, where a demagnetizer is used to demagnetize the magnetic coating material. By releasing the magnetic attraction between multiple tube bundles, each tube can be wound onto its own independent reel, allowing for independent storage of each tube bundle. This solution features a simple overall structure, is easy to operate, and is suitable for widespread use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the detachable tubing bundle used in underwater oil spill emergencies. Figure 2 This is a schematic diagram illustrating the working principle of magnetization and demagnetization; Figure 3 This is a schematic diagram of a detachable tube bundle structure that forms N and S magnetic poles by lateral magnetization without using a filler cable. Figure 4 This is a schematic diagram of a detachable tube bundle structure that forms N and S magnetic poles by transverse magnetization when using a filler cable; Figure 5 This is a schematic diagram of a detachable tube bundle structure formed by longitudinal magnetization to create N and S magnetic poles when using a filler cable. Figure 6 It is a filler cable with an hourglass-shaped structure; Figure 7 It is a triangular structure filled cable; In the diagram: 1. Tube bundle body; 2. Inner layer of hose; 3. Magnetically rechargeable and demagnetizable coating; 4. Drum; 5. Demagnetizer; 6. Magnetizer; 7. Surface vessel; 8. Underwater production system; 9. Oil spill; 10. N pole; 11. S pole; 12. Water inlet bridge; 13. Tube bundle; 14. Filler cable. Detailed Implementation

[0019] The technical solution of the present invention will be further described below through specific embodiments.

[0020] Example 1

[0021] like Figure 1 As shown in the diagram, the detachable tubing bundle for underwater oil spill emergency response is in use. The inner side of the tubing bundle body 1 has a flexible inner layer 2, and the outer side has a magnetically coated layer 3 that can be charged and demagnetized. Each tubing bundle body 1 is installed in its own independent drum 4 when not magnetized. The drum 4, demagnetizer 5, and magnetizer 6 are mounted on a surface vessel 7 for use in emergency oil spill response when an oil spill occurs in the underwater production system 8, i.e., at the location indicated by oil spill 9 in the diagram.

[0022] like Figure 2 As shown, when an oil spill emergency occurs, the reel 4 is started to lower the tube bundle 1. The magnetizer 6 is used to magnetize the magnetic coating layer 3, which is in an unmagnetized state but can be demagnetized, in sections to form N magnetic poles 10 and S magnetic poles 11 in sections.

[0023] After the magnetized tube bundle 1 is deployed into the water from the water inlet bridge 12 of the surface vessel 7, under the magnetic force of the N magnetic pole 10 and the S magnetic pole 11, each tube bundle 1 attracts each other and assembles to form a tube bundle 13, thereby effectively responding to oil spill accidents caused by leakage in the underwater production system.

[0024] After the oil spill emergency is over, the magnetized tubing bundles 1 are retrieved to the surface vessel 7, where the magnetic coating material is demagnetized using a demagnetizer 5. This releases the magnetic attraction between the multiple tubing bundles 1, and the demagnetized tubing bundles 1 are rewound onto their respective independent reels 4 for independent storage.

[0025] The multi-tube bundle 1 can be used as a kill fluid injection hose, a subsea oil dispersant injection hose, a natural gas hydrate injection hose, an oil spill recovery hose, and a natural gas recovery hose, etc., to deal with oil spills 5 caused by leaks from the subsea production system 6 and ensure the smooth implementation of subsea oil spill emergency response.

[0026] Furthermore, the inner layer 2 of the hose includes an inner liner, a skeleton layer, an armor layer, and a protective layer, which are fixedly connected layer by layer from the inside to the outside.

[0027] The rechargeable and demagnetizable magnetic coating layer 3 includes a magnetic layer and a wear-resistant layer, with the wear-resistant layer nested outside the magnetic layer.

[0028] The inner layer 2 of the hose and the magnetic coating layer 3 have a frosted surface, and the two are bonded together by adhesive to fix them in place.

[0029] The magnetic layer is composed of one or more of neodymium iron boron magnetic rubber, samarium cobalt magnetic rubber, alnico magnetic rubber, and ferrite magnetic rubber.

[0030] The wear-resistant layer is composed of one or more of the following: nano-silicon nitride modified rubber, graphite modified rubber, molybdenum disulfide modified rubber, glass fiber modified rubber, carbon fiber modified rubber, and polytetrafluoroethylene modified rubber, which serves to prevent surface wear.

[0031] Example 2

[0032] Based on Example 1, such as Figure 3 and Figure 4 As shown in the figure, the magnetizer 6 performs regional lateral magnetization on the magnetic coating layer 3 that can be magnetized and demagnetized, forming regional N magnetic poles 10 and S magnetic poles 11.

[0033] Example 3

[0034] Based on Example 1, such as Figure 5 As shown in the figure, the magnetizer 6 performs regional longitudinal magnetization on the magnetic coating layer 3 that can be magnetized and demagnetized, forming regional N magnetic poles 10 and S magnetic poles 11.

[0035] Example 4

[0036] Based on Example 1, such as Figure 4 and Figure 5As shown, after the tube bundle body 1 is magnetized, the gap between multiple tube bundle bodies 1 is filled by the filling cable 14. The filling cable 14 is provided with multiple adsorption grooves that match the tube bundle body. The filling cable includes an armor layer, a magnetic coating layer and a wear-resistant layer, which are arranged layer by layer from the inside to the outside.

[0037] To further enhance the underwater aggregation effect of each tube bundle 1, filler cables 14 are used to fill the gaps between multiple tube bundles 1. The usage method of each filler cable 14 is the same as that of the tube bundle 1. Each filler cable 14 is mounted on its own independent reel 4. During use, it is magnetized together with the tube bundle 1 and then lowered into the water. In the water, the tube bundle 1 is adsorbed into the adsorption groove for positioning, allowing the filler cable 14 to aggregate with the tube bundle 1 to form a tube bundle 13. This further increases the interconnectivity of the underwater tube bundles, preventing displacement and entanglement, and better responding to oil spill accidents caused by leaks in underwater production systems.

[0038] The armor layer is composed of stainless steel wire, which serves as mechanical protection and tensile strength.

[0039] The magnetic coating layer is composed of one or more of neodymium iron boron magnetic rubber, samarium cobalt magnetic rubber, alnico magnetic rubber, and ferrite magnetic rubber.

[0040] The wear-resistant layer is composed of one or more of the following: nano-silicon nitride modified rubber, graphite modified rubber, molybdenum disulfide modified rubber, glass fiber modified rubber, carbon fiber modified rubber, and polytetrafluoroethylene modified rubber, which serves to prevent surface wear.

[0041] Example 5

[0042] Based on Example 4, such as Figure 6 As shown, the cross-section of the filling cable 14 has two symmetrical adsorption grooves forming an hourglass structure.

[0043] Example 6

[0044] Based on Example 4, such as Figure 7 As shown, the cross-section of the filling cable 14 has three equally spaced adsorption grooves in a triangular shape.

[0045] The embodiments of the present invention have been described in detail above, but the content described is only a preferred embodiment of the present invention and should not be considered as limiting the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A detachable tubing bundle for underwater oil spill emergency response, characterized in that: It includes a tube bundle body, with a flexible inner layer inside the tube bundle body, and a magnetic coating layer that can be charged and demagnetized is provided outside the flexible inner layer. The tube bundle body is placed inside the drum in an unmagnetized state. The tube bundle body is demagnetized and magnetized by a matching demagnetizer and magnetizer, respectively. The rechargeable and demagnetizable magnetic coating is magnetized in sections using a magnetizer; The unmagnetized magnetic coating material is magnetized in sections by a magnetizer to form N and S magnetic poles in sections. Under the magnetic force of the N and S magnetic poles, each tube bundle attracts each other and is assembled with the filler cable to form a tube bundle. The magnetic coating material is demagnetized by a demagnetizer to release the magnetic attraction between the multiple tube bundles, so that they are wound onto their own independent spools, allowing the multiple tube bundles to be stored independently.

2. The detachable tubing bundle for underwater oil spill emergency response according to claim 1, characterized in that: The magnetic coating layer, which can be recharged and demagnetized, is laterally magnetized in sections using a magnetizer to form regional N and S magnetic poles.

3. The detachable tubing bundle for underwater oil spill emergency response according to claim 1, characterized in that: The magnetic coating layer, which can be charged and demagnetized, is longitudinally charged in sections by a magnetizer to form regional N and S magnetic poles.

4. The detachable tubing bundle for underwater oil spill emergency response according to claim 1, characterized in that: The inner layer of the hose includes an inner liner, a skeleton layer, an armor layer, and a protective layer, which are fixedly connected layer by layer from the inside to the outside.

5. The detachable tubing bundle for underwater oil spill emergency response according to claim 1, characterized in that: The rechargeable and demagnetizable magnetic coating layer includes a magnetic layer and a wear-resistant layer, with the wear-resistant layer nested outside the magnetic layer.

6. The detachable tubing bundle for underwater oil spill emergency response according to any one of claims 1-5, characterized in that: After the tube bundle is magnetized, the gaps between multiple tube bundles are filled by a filling cable. The filling cable has multiple adsorption grooves that match the tube bundle. The filling cable includes an armor layer, a magnetic coating layer, and a wear-resistant layer, which are arranged layer by layer from the inside to the outside.

7. The detachable tubing bundle for underwater oil spill emergency response according to claim 6, characterized in that: The cross-section of the filler cable has two symmetrical adsorption grooves, forming an hourglass structure.

8. The detachable tubing bundle for underwater oil spill emergency response according to claim 6, characterized in that: The cross-section of the filler cable has three equally spaced adsorption grooves in a triangular shape.

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