Ocean integrated pipe cable

Abstract

The utility model relates to a marine integrated pipe cable, which comprises a pipeline unit, the pipeline unit comprises a lining layer and a pressure bearing layer, a medium is in contact with the lining layer, and the pressure bearing layer is arranged on the periphery of the lining layer; the cable unit comprises an umbilical cable layer, an inner sheath layer, an armor layer and an outer sheath layer which are sequentially arranged from inside to outside, and the umbilical cable layer is coaxially arranged on the outer side of the pipeline unit; the umbilical cable layer comprises an optical cable, a cable and filler, the cable is used for supplying power, and the optical cable is used for monitoring the state of the pipeline unit; the optical cables are uniformly distributed on the umbilical cable layer at intervals. According to the utility model, the marine hose and the umbilical cable are integrated to construct the integrated pipe cable with a monitoring function, and the integrated pipe cable has the functions of marine oil and gas transmission and in-situ detection, can monitor the state of a pipeline in real time, and improves the structural strength and the overall performance of the integrated pipe cable; the marine oil and gas exploitation cost is reduced; infrastructure laying is reduced, and offshore oil and gas exploitation construction and operation cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of integrated cable technology, and in particular to a marine integrated cable. Background Technology

[0002] In offshore oil and gas exploration projects, both unbonded flexible pipes and umbilical cables are used on a massive scale. Specifically, unbonded flexible pipes are used to transport fluids (such as oil, gas, and chemicals), possessing high pressure resistance, corrosion resistance, and dynamic bending capabilities; umbilical cables can integrate power, fiber optic communication, and hydraulic / chemical pipelines, providing control, power, and data transmission for underwater equipment. The current technology lacks the ability to reduce the complexity of underwater structures, optimize the layout of underwater production systems, and lower installation costs and maintenance efficiency by integrating unbonded flexible pipes and umbilical cables to form integrated pipe umbilicals.

[0003] However, the existing technology is relatively lacking in in-situ monitoring technology for marine hoses. Therefore, it is difficult to monitor the condition of marine hoses in real time. In addition, when integrating marine hoses and umbilical cables, how to ensure the uniformity of the overall structure, guarantee good structural strength, and improve overall performance are also technical problems that need to be solved. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a marine integrated pipeline cable that can integrate marine hoses and umbilical cables to form an integrated pipeline cable with monitoring functions, and also has the functions of marine oil and gas transportation and in-situ detection. It can monitor the status of the pipeline in real time, improve the structural strength and overall performance of the integrated pipeline cable, and reduce related construction and operation costs.

[0005] To address the aforementioned technical problems, this utility model provides a marine integrated conduit cable for transporting media, comprising:

[0006] A piping unit comprising an inner lining and a pressure-bearing layer, wherein the medium is in contact with the inner lining and the pressure-bearing layer is disposed around the inner lining;

[0007] A cable unit includes, from the inside out, an umbilical cable layer, an inner sheath layer, an armor layer, and an outer sheath layer, with the umbilical cable layer coaxially disposed on the outside of the conduit unit. The umbilical cable layer includes optical cables, electrical cables, and filler material. The electrical cables are used for power supply, and the optical cables are used for monitoring the status of the conduit unit. The optical cables and electrical cables are evenly spaced within the umbilical cable layer, and the filler material fills the gaps in the umbilical cable layer.

[0008] Along the radial direction of the marine integrated pipeline, the marine integrated pipeline is divided into a first part and a second part. The optical cables in the first part and the optical cables in the second part are centrally symmetrical, and the electrical cables in the first part and the electrical cables in the second part are centrally symmetrical.

[0009] In one embodiment of this utility model, the umbilical cable layer further includes a hydraulic tube, with the hydraulic tube located in the first part and the hydraulic tube located in the second part being centrally symmetrical; the hydraulic tube includes a steel pipe.

[0010] In one embodiment of this utility model, there are two hydraulic pipes; there are two cables; and there are four optical cables.

[0011] In one embodiment of the present invention, the inner liner is formed by extrusion of a first polymer; the outer sheath is formed by extrusion of a second polymer.

[0012] In one embodiment of this utility model, the pressure-bearing layer is disposed between the inner lining layer and the umbilical cable layer, and the pressure-bearing layer is formed by interlocking special-shaped steel.

[0013] In one embodiment of the present invention, the pipe unit further includes a wear-resistant layer, which is disposed between the pressure-bearing layer and the umbilical cable layer, and is formed by winding a wear-resistant tape.

[0014] In one embodiment of the present invention, the cable unit further includes an adhesive tape layer, which is located between the inner sheath layer and the umbilical cable layer, and is formed by wrapping the adhesive tape.

[0015] In one embodiment of the present invention, the inner sheath layer is formed by extrusion molding of a third polymer.

[0016] In one embodiment of this utility model, the armor layer is formed by winding armor round steel wire.

[0017] In one embodiment of the present invention, the cable unit further includes a reinforcing layer disposed between the outer sheath layer and the armor layer. The reinforcing layer is formed by winding at least two types of fiber materials to prevent the armor layer from buckling radially.

[0018] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:

[0019] This utility model discloses an integrated marine pipeline cable, comprising a pipeline unit and a cable unit. The pipeline unit is used to transport media such as oil and gas, and includes an inner lining layer and a pressure-bearing layer. The media is in contact with the inner lining layer, and the pressure-bearing layer is located around the inner lining layer. The cable unit includes, from the inside out, an umbilical cable layer, an inner sheath layer, an armor layer, and an outer sheath layer. Specifically, the umbilical cable layer includes an optical cable, an electrical cable, and filler. The optical cable is used for in-situ monitoring of the internal state of the pipeline unit, and the electrical cable is used for power supply. This utility model's integrated marine pipeline cable integrates a marine hose and an umbilical cable to construct an integrated pipeline cable with monitoring functions, combining marine oil and gas transportation and in-situ detection functions. It can monitor the pipeline status in real time, improve the structural strength and overall performance of the integrated pipeline cable, reduce the cost of marine oil and gas extraction, reduce infrastructure laying, reduce the construction and operation costs of marine oil and gas extraction, ensure the safety of oil and gas transportation in deep-water environments, and enhance the power supply of subsea equipment. Attached Figure Description

[0020] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the present invention.

[0022] Figure 2 yes Figure 1 A magnified schematic diagram of a local structure.

[0023] Explanation of reference numerals in the accompanying drawings: 1. Medium; 2. Inner liner; 3. Umbilical cable layer; 30. Optical cable; 31. Electrical cable; 32. Filler; 33. Hydraulic tube; 4. Inner sheath layer; 5. Armor layer; 6. Outer sheath layer; 7. Pressure-bearing layer; 8. Wear-resistant layer; 9. Coated fabric tape layer; 10. Reinforcing layer. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention. Example 1:

[0025] Reference Figures 1 to 2 As shown, this utility model discloses a marine integrated pipeline cable for transporting a medium 1, which includes, but is not limited to, oil and gas, chemicals, etc. The marine integrated pipeline cable includes a pipeline unit, which includes an inner lining layer 2 and a pressure-bearing layer 7, wherein the medium 1 is in contact with the inner lining layer 2, and the pressure-bearing layer 7 is disposed on the periphery of the inner lining layer 2.

[0026] The marine integrated pipeline also includes a cable unit, which comprises, from the inside out, an umbilical cable layer 3, an inner sheath layer 4, an armor layer 5, and an outer sheath layer 6. The umbilical cable layer 3 is coaxially disposed on the outside of the pipeline unit.

[0027] Specifically, the umbilical cable layer 3 includes an optical cable 30, a cable 31, and a filler 32. The optical cable 30 is used to monitor the status of the pipeline unit. In detail, the optical cable 30 can perform in-situ monitoring of the internal status of the pipeline unit, including monitoring the temperature, stress conditions, and presence of leaks within the pipeline unit. The cable 31 is used for power supply.

[0028] The optical cables 30 are evenly spaced on the umbilical cable layer 3, the electrical cables 31 are evenly spaced on the umbilical cable layer 3, and the filler 32 fills the gaps in the umbilical cable layer 3, thereby making the structure more compact.

[0029] It is important to note that the marine integrated cable is divided into a first part and a second part along its radial direction. The optical cable 30 in the first part and the optical cable 30 in the second part are centrally symmetrical, as are the electrical cable 31 in the first part and the electrical cable 31 in the second part. This arrangement allows for a symmetrical cross-section of the marine integrated cable, resulting in a more uniform overall structure and improved stability during use. It also significantly enhances cable performance, especially in complex environments such as deep-sea high-pressure and dynamic laying. Furthermore, it ensures uniform stress distribution: the symmetrical structure allows for balanced stress distribution during tension, bending, or torsion, preventing cable twisting, rotation, deformation, or breakage caused by localized stress concentration. Additionally, it improves the electrical stability of the marine cable, enhances impedance consistency, reduces AC resistance (skin effect), and minimizes energy loss. Moreover, the symmetrical shielding structure uniformly cancels electromagnetic interference, improving signal transmission quality, and enhances heat dissipation uniformity, facilitating heat diffusion and preventing localized overheating that could lead to insulation aging.

[0030] Therefore, it can be understood that the marine integrated pipeline protected by this utility model includes a pipeline unit and a cable unit. The pipeline unit is used to transport media such as oil and gas, and includes an inner lining layer and a pressure-bearing layer. The media is in contact with the inner lining layer, and the pressure-bearing layer is located on the periphery of the inner lining layer. The cable unit includes an umbilical cable layer, an inner sheath layer, an armor layer, and an outer sheath layer arranged sequentially from the inside out. Specifically, the umbilical cable layer includes an optical cable, an electrical cable, and filler. The optical cable is used for in-situ monitoring of the internal state of the pipeline unit, and the electrical cable is used for power supply. The marine integrated pipeline of this utility model can integrate a marine hose and an umbilical cable to construct an integrated pipeline with monitoring functions, and it also has the functions of marine oil and gas transportation and in-situ detection. It can monitor the status of the pipeline in real time, improve the structural strength and overall performance of the integrated pipeline, reduce the cost of marine oil and gas extraction, reduce the laying of infrastructure, reduce the construction and operation costs of marine oil and gas extraction, ensure the safety of oil and gas transportation in deep water environments, and enhance the power supply of subsea equipment.

[0031] In a preferred embodiment, the piping unit is a flexible hose.

[0032] In one preferred embodiment, the filler 32 may be made of materials including but not limited to polymers (polyethylene PE or polypropylene PP, etc.), waterproof sealing materials (water-blocking adhesives or water-blocking tapes), and reinforcing materials (Kevlar fibers, polyester fibers, or glass fibers, etc.).

[0033] Furthermore, in order to enhance the mechanical strength and compressive strength of the integrated cable, resist damage from external forces such as seabed rocks, improve the tensile and bending stress that the integrated cable can withstand during laying or maintenance, and ensure the structural stability and integrity of the integrated cable, the umbilical cable layer 3 also includes a hydraulic tube 33, and the number of hydraulic tubes 33 is at least two; and the hydraulic tubes 33 located in the first part and the hydraulic tubes 33 located in the second part are centrally symmetrical.

[0034] In a preferred embodiment, the hydraulic pipe 30 is made of steel. The hydraulic pipe 33 is capable of providing hydraulic pressure to the subsea equipment.

[0035] In this embodiment, two hydraulic pipes 33 are provided; two cables 31 are provided; and four optical cables 30 are provided. (Combined) Figure 1 As shown, the two hydraulic tubes 33 are symmetrically arranged, the two cables 31 are symmetrically arranged, and the two hydraulic tubes 33 and the two cables 31 are evenly staggered and spaced on the umbilical cable layer 3; the four optical cables 30 are respectively laid between the adjacent hydraulic tubes 33 and the cables 31.

[0036] Of course, in other embodiments, the number of the hydraulic pipe 33, the cable 31 and the optical cable 30 can also be designed according to product requirements.

[0037] The inner lining layer 2 can disperse the pressure of the armor layer 5 on the internal structure, prevent mechanical damage, prevent longitudinal water seepage, and assist in insulation; thus playing a role in buffering, sealing and corrosion prevention. The material of the inner lining layer 2 usually has flexibility, corrosion resistance and electrical insulation properties.

[0038] In detail, the inner liner 2 is formed by extrusion of a first polymer; the first polymer includes, but is not limited to, HDPE (high-density polyethylene) or XLPE (cross-linked polyethylene).

[0039] The outer sheath layer 6, as the outermost protective layer of the integrated cable, will be in direct contact with complex environments such as seawater, reefs, and marine life. Therefore, it needs to have characteristics such as high strength, corrosion resistance, wear resistance, and pressure resistance.

[0040] Specifically, the outer sheath layer 6 is extruded using a second polymer. The second polymer includes, but is not limited to, HDPE (high-density polyethylene), polyvinyl chloride (PVC), cross-linked polyethylene (XLPE), and thermoplastic elastomer (TPV / TPE).

[0041] In detail, the pressure-bearing layer 7 is disposed between the inner lining layer 2 and the umbilical cable layer 3, and the pressure-bearing layer 7 is formed by interlocking special-shaped steel.

[0042] Furthermore, the cable unit also includes a wear-resistant layer 8, which is disposed between the pressure-bearing layer 7 and the umbilical cable layer 3, and is formed by winding a wear-resistant tape.

[0043] Furthermore, the cable unit also includes an adhesive tape layer 9, which is located between the inner sheath layer 4 and the umbilical cable layer 3, and is formed by wrapping adhesive tape.

[0044] The inner sheath layer 4 primarily serves to provide waterproofing, insulation, and mechanical cushioning. The material of the inner sheath layer 4 must possess high waterproofness, corrosion resistance, and a certain level of mechanical strength. The inner sheath layer 4 is formed by extrusion molding using a third polymer. The third polymer includes, but is not limited to, high-density polyethylene (HDPE), cross-linked polyethylene (XLPE), polyvinyl chloride (PVC), and aluminum-plastic composite tape (APL), and may also be a lead alloy (Pb).

[0045] The armor layer 5 is formed by winding armor round steel wire. The armor layer 5

[0046] The cable unit further includes a reinforcing layer 10 disposed between the outer sheath layer 6 and the armor layer 5. The reinforcing layer 10 is formed by winding at least two types of fiber materials to prevent the armor layer 5 from buckling radially. In this embodiment, the reinforcing layer 10 is formed by winding aramid tape and fiberglass tape.

[0047] During the product selection and design process, different polymers are selected to meet the different requirements of the product. Example 2:

[0048] This utility model also discloses a subsea device, which is connected to the marine integrated pipeline as described in Embodiment 1, so as to obtain electricity, hydraulic pressure, etc. through the marine integrated pipeline.

[0049] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0050] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0051] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. An ocean integrated umbilical for transporting a medium, characterized by: include, A piping unit comprising an inner lining and a pressure-bearing layer, wherein the medium is in contact with the inner lining and the pressure-bearing layer is disposed around the inner lining; A cable unit includes, from the inside out, an umbilical cable layer, an inner sheath layer, an armor layer, and an outer sheath layer, with the umbilical cable layer coaxially disposed on the outside of the conduit unit. The umbilical cable layer includes optical cables, electrical cables, and filler material. The electrical cables are used for power supply, and the optical cables are used for monitoring the status of the conduit unit. The optical cables and electrical cables are evenly spaced within the umbilical cable layer, and the filler material fills the gaps in the umbilical cable layer. Along the radial direction of the marine integrated pipeline, the marine integrated pipeline is divided into a first part and a second part. The optical cables in the first part and the optical cables in the second part are centrally symmetrical, and the electrical cables in the first part and the electrical cables in the second part are centrally symmetrical.

2. An integrated marine umbilical according to claim 1, wherein: The umbilical cable layer also includes a hydraulic tube, with the hydraulic tube located in the first part and the hydraulic tube located in the second part being centrally symmetrical; the hydraulic tube includes a steel pipe.

3. An integrated marine umbilical according to claim 2, wherein: There are two hydraulic pipes; there are two cables; and there are four optical cables.

4. An integrated marine umbilical according to claim 1, wherein: The inner liner is formed by extrusion of a first polymer; the outer sheath is formed by extrusion of a second polymer.

5. An integrated marine tube cable according to claim 1, characterized in that: The pressure-bearing layer is disposed between the inner lining layer and the umbilical cable layer, and the pressure-bearing layer is formed by interlocking special-shaped steel.

6. An integrated marine umbilical according to claim 5, wherein: The pipeline unit also includes a wear-resistant layer, which is disposed between the pressure-bearing layer and the umbilical cable layer, and is formed by winding a wear-resistant tape.

7. An integrated marine umbilical as claimed in claim 1, characterized by: The cable unit further includes an adhesive tape layer, which is located between the inner sheath layer and the umbilical cable layer, and is formed by wrapping the adhesive tape.

8. An integrated marine pipe cable according to claim 1, characterized in that: The inner sheath layer is formed by extrusion of a third polymer.

9. An integrated marine pipe cable according to claim 1, characterized in that: The armor layer is formed by winding armor round steel wire.

10. An integrated marine umbilical as claimed in any of claims 1 to 9, wherein: The cable unit further includes a reinforcing layer disposed between the outer sheath layer and the armor layer. The reinforcing layer is formed by winding at least two types of fiber materials to prevent the armor layer from buckling radially.

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