CN214222269U - High-pressure non-bonding flexible pipeline suitable for submarine oil and gas transportation - Google Patents
High-pressure non-bonding flexible pipeline suitable for submarine oil and gas transportation Download PDFInfo
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- CN214222269U CN214222269U CN202023047174.3U CN202023047174U CN214222269U CN 214222269 U CN214222269 U CN 214222269U CN 202023047174 U CN202023047174 U CN 202023047174U CN 214222269 U CN214222269 U CN 214222269U
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Abstract
The utility model discloses a high-pressure non-bonding flexible pipeline suitable for submarine oil and gas transmission, which is provided with a framework layer, an inner pressure sealing layer, a compression-resistant armor layer, an auxiliary compression-resistant armor layer, a tensile armor layer, a coating layer, a counterweight armor layer and an outer coating layer from inside to outside in sequence, wherein the layers are connected in a non-bonding way; the auxiliary pressure-resistant armor layer is added on the outer side of the pressure-resistant armor layer interlocked with the tensile armor layer of the flexible pipeline, so that the problem that the Z-shaped section interlocking carbon steel of the pressure-resistant armor layer is influenced by a rolling process and a winding process, the strength structure of the layer body is only suitable for the limitation of a medium-pressure pipeline is solved, and the internal pressure resistance of the non-bonded flexible pipeline is effectively improved.
Description
Technical Field
The utility model relates to a submarine pipeline especially relates to a be applicable to seabed oil gas and carry with flexible pipeline of high pressure non-bonding, belongs to marine oil gas medium and carries technical field.
Background
The submarine pipeline is a main carrier for marine oil and gas transmission, the flexible pipeline is used as an upgrading and updating product of a steel pipe, has the characteristics of high flexibility, low construction cost, strong corrosion resistance, strong terrain adaptability and reusability, is suitable for various pipeline applications such as mixed transportation, oil transportation, gas transportation, water injection, chemical agents, deep sea risers, jumper pipes and the like for marine oil and gas exploitation, and currently, the flexible pipeline is considered to be used for replacing the steel pipe in more and more oil field development because the flexible pipeline is more convenient and quicker to install than the steel pipe, and if the flexible pipeline is used for replacing the steel pipe in the oil field development, a large amount of offshore construction cost can be saved.
The marine non-bonded flexible pipeline structure is formed by compounding high-performance metal materials and high-molecular polymers, all the layers are relatively independent and are connected in a non-bonded mode, loads are transmitted through friction of all the layers, each layer of the pipeline structure has the main function, each layer of material is selected according to the specific function requirements of each layer, based on the special structure of the non-bonded flexible pipeline, the proper layer structure scheme is selected, the key factor for ensuring the performance of the pipeline and reducing the production and manufacturing cost of the pipeline is achieved, the limitation is achieved by the rolling process and the winding process of the pipeline pressure-resistant armor layer material, the conventional structure is suitable for medium-pressure pipelines, and the requirement for high-pressure medium conveying is difficult to meet.
It is against this background that the present application provides a high pressure, non-bonded flexible pipeline suitable for subsea hydrocarbon transport.
SUMMERY OF THE UTILITY MODEL
The main object of the present invention is to overcome the above disadvantages of the prior art, and to provide a high pressure non-bonded flexible pipeline for submarine oil and gas transportation.
The utility model discloses a realize by following technical scheme:
a high-pressure non-bonded flexible pipeline suitable for submarine oil and gas transmission comprises a framework layer, an internal pressure sealing layer, a compression-resistant armor layer, an auxiliary compression-resistant armor layer, a tensile armor layer, a coating layer, a counterweight armor layer and an outer coating layer, wherein the framework layer, the internal pressure sealing layer, the compression-resistant armor layer, the auxiliary compression-resistant armor layer, the tensile armor layer, the coating layer, the counterweight armor layer and the outer coating layer are in non-bonded connection;
the framework layer is positioned at the innermost part of the pipeline and adopts a stainless steel belt;
the inner pressure sealing layer is not bonded and wound outside the framework layer and is made of any one of high-density polyethylene, polyamide resin, cross-linked polyethylene and polyvinylidene fluoride;
the compression-resistant armor layer is wound on the outer side of the inner pressure sealing layer in a non-bonding mode and is made of Z-shaped section carbon steel in an interlocking mode;
the auxiliary compression-resistant armor layer is wound on the outer side of the compression-resistant armor layer in a non-bonding mode, the auxiliary compression-resistant armor layer is made of carbon steel, and the winding angle range of the auxiliary compression-resistant armor layer is 80-90 degrees;
the tensile armor layer is two non-bonding structural layers, the tensile armor layer is wound on the outer side of the auxiliary compression-resistant armor layer in a non-bonding mode, and the tensile armor layer is made of carbon steel;
the coating layer is wound outside the tensile armor layer in a non-bonding mode and is made of any one of high-density polyethylene, medium-density polyethylene and polyamide resin;
the counterweight armor layer is wound on the outer side of the cladding layer in a non-bonding mode and is made of carbon steel;
the outer cladding layer is wound on the outer side of the counterweight armor layer in a non-bonding mode and is made of any one of high-density polyethylene, medium-density polyethylene and polyamide resin.
The utility model has the advantages that:
the utility model discloses a be applicable to seabed oil gas and carry with high-pressure non-bonding flexible line, through increasing supplementary resistance to compression armor outside the resistance to compression armor of flexible line interlocking and tensile armor inboard, solve resistance to compression armor Z type cross-section interlocking carbon steel and receive the restriction that this layer body strength structure that rolling technology and winding technology influence lead to only be applicable to the middling pressure pipeline, effectively promote the anti interior pressure ability of non-bonding flexible line.
The present invention will be further explained with reference to the drawings and examples.
Drawings
FIG. 1 is a schematic diagram of the pipeline structure of the preferred embodiment of the present invention;
fig. 2 is a schematic cross-sectional view of a preferred embodiment of the present invention.
The parts in the drawings are numbered as follows: 1. a framework layer; 2. an internal pressure sealing layer; 3. a compression-resistant armor layer; 4. an auxiliary compression-resistant armor layer; 5. a tensile armor layer; 6. a coating layer; 7. a counterweight armor layer; 8. and (4) coating the layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1-2, a high-pressure non-adhesive flexible pipeline suitable for submarine oil and gas transmission comprises a framework layer 1, an internal pressure sealing layer 2, a compression-resistant armor layer 3, an auxiliary compression-resistant armor layer 4, a tensile armor layer 5, a coating layer 6, a counterweight armor layer 7 and an outer coating layer 8, wherein the framework layer 1, the internal pressure sealing layer 2, the compression-resistant armor layer, the auxiliary compression-resistant armor layer 4, the tensile armor layer 5, the coating layer 6, the counterweight armor layer 7 and the outer coating layer 8 are in non-adhesive connection; the framework layer 1 is positioned at the innermost part of the pipeline and adopts a stainless steel belt; the inner pressure sealing layer 2 is not bonded and wound outside the framework layer 1, the inner pressure sealing layer 2 is made of any one of high-density polyethylene, polyamide resin, cross-linked polyethylene and polyvinylidene fluoride, and suitable materials are selected according to different use temperatures and conveying media; the compression-resistant armor layer 3 is wound on the outer side of the inner pressure sealing layer 2 in a non-bonding mode, and the compression-resistant armor layer 3 is made of Z-shaped section carbon steel in an interlocking mode; in order to improve the internal pressure resistance of the flexible pipeline, an auxiliary pressure-resistant armor layer 4 is added on the pressure-resistant armor layer 3, the auxiliary pressure-resistant armor layer 4 is wound on the outer side of the pressure-resistant armor layer 3 in a non-bonding mode, the auxiliary pressure-resistant armor layer 4 is made of carbon steel, and the winding angle range of the auxiliary pressure-resistant armor layer 4 is 80-90 degrees; the tensile armor layer 5 is two non-adhesive structural layers, the tensile armor layer 5 is wound on the outer side of the auxiliary compression-resistant armor layer 4 in a non-adhesive mode, and the tensile armor layer 5 is made of carbon steel; the coating layer 6 is wound outside the tensile armor layer 5 in a non-bonding mode, and the coating layer 6 is made of any one of high-density polyethylene, medium-density polyethylene and polyamide resin; in order to increase the external force resistance of the flexible pipeline, a layer of counterweight armor layer 7 and an outer cladding layer 8 are added outside the cladding layer, the counterweight armor layer 7 is wound outside the cladding layer 6 in a non-bonding mode, and the counterweight armor layer 7 is made of carbon steel; the outer cladding 8 is wound outside the counterweight armor layer 7 in a non-bonding mode, and the outer cladding 8 is made of any one of high-density polyethylene, medium-density polyethylene and polyamide resin.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all of which utilize the equivalent structure or equivalent flow transformation made by the content of the specification of the present invention, or directly or indirectly applied to other related technical fields, all included in the same way in the patent protection scope of the present invention.
Claims (1)
1. The high-pressure non-bonding flexible pipeline is suitable for submarine oil and gas transmission and is characterized by comprising a framework layer (1), an inner pressure sealing layer (2), a compression-resistant armor layer (3), an auxiliary compression-resistant armor layer (4), a tensile armor layer (5), a coating layer (6), a counterweight armor layer (7) and an outer coating layer (8), wherein the framework layer, the inner pressure sealing layer, the tensile armor layer, the coating layer, the counterweight armor layer and the outer coating layer are in non-bonding connection;
the framework layer (1) is positioned at the innermost part of the pipeline and adopts a stainless steel belt;
the inner pressure sealing layer (2) is not bonded and wound outside the framework layer (1), and the inner pressure sealing layer (2) is made of any one of high-density polyethylene, polyamide resin, cross-linked polyethylene and polyvinylidene fluoride;
the compression-resistant armor layer (3) is wound on the outer side of the inner pressure sealing layer (2) in a non-bonding mode, and the compression-resistant armor layer (3) is made of Z-shaped section carbon steel in an interlocking mode;
the auxiliary pressure-resistant armor layer (4) is wound on the outer side of the pressure-resistant armor layer (3) in a non-bonding mode, the auxiliary pressure-resistant armor layer (4) is made of carbon steel, and the winding angle range of the auxiliary pressure-resistant armor layer (4) is 80-90 degrees;
the tensile armor layer (5) is two non-bonding structural layers, the tensile armor layer (5) is wound on the outer side of the auxiliary compression-resistant armor layer (4) in a non-bonding mode, and the tensile armor layer (5) is made of carbon steel;
the coating layer (6) is wound outside the tensile armor layer (5) in a non-bonding mode, and the coating layer (6) is made of any one of high-density polyethylene, medium-density polyethylene and polyamide resin;
the counterweight armor layer (7) is wound outside the cladding layer (6) in a non-bonding mode, and the counterweight armor layer (7) is made of carbon steel;
the outer cladding (8) is wound on the outer side of the counterweight armor layer (7) in a non-bonding mode, and the outer cladding (8) is made of any one of high-density polyethylene, medium-density polyethylene and polyamide resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023047174.3U CN214222269U (en) | 2020-12-17 | 2020-12-17 | High-pressure non-bonding flexible pipeline suitable for submarine oil and gas transportation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023047174.3U CN214222269U (en) | 2020-12-17 | 2020-12-17 | High-pressure non-bonding flexible pipeline suitable for submarine oil and gas transportation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214222269U true CN214222269U (en) | 2021-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023047174.3U Active CN214222269U (en) | 2020-12-17 | 2020-12-17 | High-pressure non-bonding flexible pipeline suitable for submarine oil and gas transportation |
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| Country | Link |
|---|---|
| CN (1) | CN214222269U (en) |
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- 2020-12-17 CN CN202023047174.3U patent/CN214222269U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Junhai pipe industry (Shandong) Co.,Ltd. Assignor: WUDI HAIZHONG FLEXIBLE PIPE MANUFACTURING CO.,LTD. Contract record no.: X2021980016589 Denomination of utility model: A high pressure Unbonded flexible pipeline suitable for submarine oil and gas transportation Granted publication date: 20210917 License type: Common License Record date: 20211228 |
|
| EE01 | Entry into force of recordation of patent licensing contract |