Seabed oil pipeline

Abstract

The utility model discloses a seabed oil pipeline which comprises an oil pipeline body, a mounting mechanism and a connecting mechanism. The mounting mechanism comprises an oil-soluble pressure pipe and a pressure sensor; the oil-soluble pressure pipe is arranged in a mounting groove formed in the oil conveying pipe in a snakelike manner, air is filled in the oil-soluble pressure pipe, and the pressure sensor is arranged in the oil-soluble pressure pipe; an anti-corrosion layer is further arranged in the oil conveying pipe. The connecting mechanism comprises a splicing end and a bearing end, the tail ends of the oil conveying pipes are connected with the splicing end, the splicing end is used for splicing the adjacent oil conveying pipes, and the lower end of the splicing end is connected with the bearing end. The oil conveying pipe has the advantages that the technical problem that in the prior art, due to the fact that in the actual using process of an oil conveying pipe, the splicing efficiency between pipe bodies is low, and oil leakage is prone to occurring is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil pipelines, in particular to a submarine oil pipeline. Background Art

[0002] Submarine pipelines are pipelines laid along the seabed to transport crude oil or natural gas from production sites to processing plants, terminal markets or export ports. These pipelines are usually made of corrosion-resistant materials, such as carbon steel or alloy steel, and are specially designed to cope with the impact of seawater, seabed changes, marine life and natural disasters. Submarine pipelines play a vital role in the oil and gas industry and provide efficient and safe solutions for energy transportation. In recent decades, with the continuous development of offshore oil and gas fields, submarine pipelines have become an effective means of transportation widely used in the offshore oil industry. Submarine pipelines are the main channel for crude oil transportation from offshore oil production platforms. Submarine pipelines have special characteristics. Once a crude oil leak occurs, it will affect the normal production of offshore oil fields and cause serious damage to the marine ecological environment.

[0003] In the Chinese utility model CN2926725Y, a "single-layer steel pipe insulated submarine pipeline" is proposed. This device mainly solves the technical problem that the existing pipeline has poor insulation effect. However, due to the particularity of submarine oil pipelines, once a crude oil leak occurs, it will affect the normal production of offshore oil fields and cause serious damage to the marine ecological environment. There are two main reasons for the leakage of the pipe body. First, after the inner wall of the oil pipeline is corroded, the thickness of the pipeline wall will become thinner. Since the medium transported by the pipeline has a certain pressure, the inner wall of the pipeline is easily perforated after being corroded, causing oil and gas leakage accidents. Second, the connection tightness between the pipe bodies is poor, which will also cause leakage. Utility Model Content

[0004] The purpose of the utility model is to overcome the above technical deficiencies and provide a submarine oil pipeline to solve the technical problem that the oil pipeline in the prior art is prone to oil leakage due to low splicing efficiency between pipe bodies during actual use.

[0005] In order to achieve the above technical purpose, the utility model adopts the following technical solutions:

[0006] In a first aspect, the utility model provides a submarine oil pipeline, comprising:

[0007] Oil pipelines,

[0008] The installation mechanism comprises an oil-soluble pressure tube and a pressure sensor; the oil-soluble pressure tube is arranged in a serpentine shape in a mounting groove provided inside the oil pipeline, and the oil-soluble pressure tube is filled with air and provided with the pressure sensor; an anti-corrosion layer is also provided inside the oil pipeline;

[0009] The connecting mechanism comprises a splicing end and a load-bearing end. The end of the oil pipeline is connected to the splicing end, the splicing end is used to splice adjacent oil pipelines, and the lower end of the splicing end is connected to the load-bearing end.

[0010] In some embodiments, the oil pipeline includes a first pipe body, a second pipe body and a connecting end; the first pipe body and the second pipe body are connected via the connecting end.

[0011] In some embodiments, the connecting end includes a connecting protrusion, one end of the first tube body and the second tube body is provided with the connecting protrusion, and the other end of the first tube body and the second tube body is provided with a recessed groove that cooperates with the connecting protrusion.

[0012] In some embodiments, the anti-corrosion layer is arranged in the oil pipeline and forms an installation area between the anti-corrosion layer and the oil pipeline, and the oil-soluble pressure pipe is arranged in the installation area.

[0013] In some embodiments, the splicing end includes a first connecting member, a second connecting member, a first curved plate, and a second curved plate; the first connecting member is installed on the first tube body, the second connecting member is installed on the second tube body, a connecting area is formed between the first connecting member and the second connecting member, the first curved plate and the second curved plate are installed at the connection between the first tube body and the second tube body, and are located in the connecting area, and the first connecting member, the second connecting member, the first curved plate, and the second curved plate are connected by connecting bolts.

[0014] In some embodiments, both sides of the first arc plate and the second arc plate are integrally formed with extension plates, the two extension plates are connected by connecting bolts, and the lower end of the second arc plate is connected to the load-bearing end.

[0015] In some embodiments, the bearing end includes a connecting plate, a supporting column and a plate body; the connecting plate is fixed to the lower end of the second arc-shaped plate, the lower end of the connecting plate is connected to the supporting column, and the lower end of the supporting column is fixed to the plate body.

[0016] In some embodiments, the cross section of the connecting plate is arc-shaped.

[0017] In some embodiments, a plurality of earth-breaking cones are disposed through the plate body.

[0018] In some embodiments, the number of the ground-breaking cones is at least four.

[0019] Compared with the prior art, the utility model provides a submarine oil pipeline. The device arranges an installation groove inside the oil pipeline to facilitate the arrangement of an oil-soluble pressure pipe in the installation groove, and the oil-soluble pressure pipe is arranged between the inner wall of the oil pipeline and the anti-corrosion layer. When the crude oil in the pipeline corrodes the anti-corrosion layer during the flow and contacts the oil-soluble pressure pipe, the hose will dissolve, thereby causing the pressure in the pressure pipe to drop. The pressure sensor will sense this change and then transmit it to the terminal through an external cable, so that the staff can quickly take corresponding measures. Secondly, through the splicing end, the tightness between the oil pipelines can be guaranteed to avoid gaps between the oil pipelines, thereby avoiding leakage. And by setting the load-bearing end, it can achieve the technical effect of bearing the oil pipeline, thereby ensuring the stability of the oil pipeline during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is an overall schematic diagram of an oil pipeline provided by an embodiment of the utility model;

[0021] Figure 2 This is a side view of an oil pipeline provided by an embodiment of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the splicing end in the oil pipeline provided by the embodiment of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the sunken groove in the oil pipeline provided by the embodiment of the utility model;

[0024] Figure 5 This is a schematic diagram of the interior of an oil pipeline in an oil pipeline provided by an embodiment of the utility model;

[0025] Figure 6 This is a schematic diagram of an anti-corrosion layer in an oil pipeline provided by an embodiment of the utility model;

[0026] Figure 7 The utility model provides a schematic diagram of the splicing of the first pipe body and the second pipe body in the oil pipeline;

[0027] Figure 8 It is a schematic diagram of the load-bearing end of an oil pipeline provided by an embodiment of the utility model.

[0028] Explanation of the reference numerals in the accompanying drawings: 1. Oil pipeline; 11. First tube body; 12. Second tube body; 13. Connecting end; 131. Connecting protrusion; 132. Recessed groove; 2. Mounting mechanism; 21. Oil-soluble pressure tube; 22. Pressure sensor; 23. Mounting groove; 24. Anti-corrosion layer; 3. Connecting mechanism; 31. Splicing end; 311. First connecting piece; 312. Second connecting piece; 313. First curved plate; 314. Second curved plate; 315. Extension plate; 32. Load-bearing end; 321. Connecting plate; 322. Support column; 323. Plate body; 324. Ground-breaking cone. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0030] See also Figure 1-Figure 5 , Figure 1-Figure 5 This is a structural schematic diagram of a submarine oil pipeline in an embodiment of the utility model. The submarine oil pipeline 1 includes an oil pipeline 1, a mounting mechanism 2 and a connecting mechanism 3; the mounting mechanism 2 includes an oil-soluble pressure tube 21 and a pressure sensor 22; the oil-soluble pressure tube 21 is arranged in a serpentine shape in a mounting groove 23 opened inside the oil pipeline 1, and the oil-soluble pressure tube 21 is filled with air and is provided with a pressure sensor 22; an anti-corrosion layer 24 is also provided in the oil pipeline 1; the connecting mechanism 3 includes a splicing end 31 and a load-bearing end 32, the end of the oil pipeline 1 is connected with the splicing end 31, the splicing end 31 is used to splice adjacent oil pipelines 1, and the lower end of the splicing end 31 is connected with the load-bearing end 32.

[0031] In this embodiment, by setting a mounting groove 23 inside the oil pipeline 1, it is convenient to arrange the oil-soluble pressure tube 21 in the mounting groove 23, and the oil-soluble pressure tube 21 is arranged between the inner wall of the oil pipeline 1 and the anti-corrosion layer 24. When the crude oil in the pipeline corrodes the anti-corrosion layer 24 during the flow process and contacts the oil-soluble pressure tube 21, the hose will dissolve, thereby causing the pressure in the pressure tube to drop. The pressure sensor 22 will sense this change and then transmit it to the terminal through an external cable, so that the staff can quickly take corresponding measures. Secondly, through the splicing end 31, the tightness between the oil pipelines 1 and the oil pipelines 1 can be guaranteed, and the gap between the oil pipelines 1 and the oil pipelines 1 can be avoided, thereby avoiding leakage. In addition, by setting the load-bearing end 32, the technical effect of bearing the oil pipeline 1 can be achieved, thereby ensuring the stability of the oil pipeline 1 during use.

[0032] In one embodiment, see Figure 1-Figure 4In order to improve the connection efficiency between the first tube body 11 and the second tube body 12, the oil pipeline 1 includes a first tube body 11, a second tube body 12 and a connecting end 13; the first tube body 11 and the second tube body 12 are connected through the connecting end 13, and the connecting end 13 includes a connecting protrusion 131. One end of the first tube body 11 and the second tube body 12 are both provided with a connecting protrusion 131, and the other end of the first tube body 11 and the second tube body 12 are both provided with a recessed groove 132 that cooperates with the connecting protrusion 131.

[0033] In this embodiment, a connecting protrusion 131 and a recessed groove 132 are respectively provided on both sides of the first tube body 11 and the second tube body 12, wherein the connecting protrusion 131 on the left side of the second tube body 12 extends into the recessed groove 132 on the right side of the first tube body 11, thereby promoting a tight fit between the first tube body 11 and the second tube body 12.

[0034] In one embodiment, see Figure 4-Figure 7 In order to prevent the first pipe body 11 and the second pipe body 12 from loosening, the anti-corrosion layer 24 is arranged in the oil pipeline 1, and an installation area is formed between the anti-corrosion layer 24 and the oil pipeline 1, and an oil-soluble pressure pipe 21 is arranged in the installation area. The splicing end 31 includes a first connecting piece 311, a second connecting piece 312, a first curved plate 313 and a second curved plate 314; the first connecting piece 311 is installed on the first pipe body 11, and the second connecting piece 312 is installed on the second pipe body 12. The first curved plate 313 and the second curved plate 314 are installed at the connection between the first tube body 11 and the second tube body 12, and are located in the connection area. The first connecting member 311, the second connecting member 312, the first curved plate 313 and the second curved plate 314 are connected by connecting bolts. Extension plates 315 are integrally formed on both sides of the first curved plate 313 and the second curved plate 314, and the two extension plates 315 are connected by connecting bolts. The lower end of the second curved plate 314 is connected to the load-bearing end 32.

[0035] In this embodiment, the oil-soluble pressure pipe 21 is arranged between the oil pipeline 1 and the anti-corrosion layer 24. When the anti-corrosion layer 24 is damaged, the crude oil will contact the oil-soluble pressure pipe 21. At this time, the pressure pipe begins to dissolve, causing the internal pressure of the pipe body to drop. The pressure sensor 22 detects this change and transmits the data to the terminal through a cable, so that the staff can respond quickly. Secondly, a first connecting member 311 is arranged on the first pipe body 11, and a second connecting member 312 is arranged on the second pipe body 12. When the first pipe body 11 and the second pipe body 12 are assembled, a connecting area is formed between the first connecting member 311 and the second connecting member 312. The second arc plate 314 is arranged below the connecting area, and then the first arc plate 313 is arranged above the connecting area. The first connecting member 311, the second connecting member 312, the first arc plate 313 and the second arc plate 314 are spliced ​​by external bolts, thereby enhancing the tightness of the connection between the first pipe body 11 and the second pipe body 12.

[0036] In one embodiment, see Figure 1-Figure 3 In order to improve the stability of the oil pipeline 1 during operation, the load-bearing end 32 includes a connecting plate 321, a supporting column 322 and a plate body 323; the connecting plate 321 is fixed to the lower end of the second arc-shaped plate 314, the lower end of the connecting plate 321 is connected to the supporting column 322, the lower end of the supporting column 322 is fixed to the plate body 323, the cross-section of the connecting plate 321 is an arc, and a plurality of breaking cones 324 are penetrated on the plate body 323, and the number of the breaking cones 324 is at least four.

[0037] A connecting plate 321 is fixed at the lower end of the second arc-shaped plate 314, and a supporting column 322 is fixed at the lower end of the connecting plate 321. A plate body 323 is provided at the lower end of the supporting column 322. The plate body 323 is used to be placed on the seabed, and the stability of the plate body 323 is improved by the earth-breaking cone 324. When used to carry the oil pipeline 1, the stability of the oil pipeline 1 during use can be guaranteed.

[0038] In order to better understand the present invention, the following Figures 1 to 8The technical solution of the utility model is described in detail: by installing a groove 23 inside the oil pipeline 1, that is, the first tube body 11 or the second tube body 12, it is convenient to arrange the oil-soluble pressure tube 21 in the installation groove 23, and at the same time, an anti-corrosion layer 24 is set on the inner wall of the oil pipeline 1, and the oil-soluble pressure tube 21 is set between the oil pipeline 1 and the anti-corrosion layer 24, and the oil-soluble pressure tube 21 is filled with air, and a pressure sensor 22 is set inside the oil-soluble pressure tube 21. When the crude oil corrodes the anti-corrosion layer 24 during transportation and flow, it will contact the oil-soluble pressure tube 21, causing the tube body to dissolve and the internal pressure to drop. After the pressure sensor 22 detects the abnormality, it transmits the data to the terminal device, so as to facilitate the staff to quickly take remedial measures. Secondly, connecting protrusions 131 and recessed grooves 13 are set on the first tube body 11 and the second tube body 12. 2. It is convenient to splice the first tube body 11 and the second tube body 12, and a connection area is formed between the first tube body 11 and the second tube body 12 through the first connecting piece 311 and the second connecting piece 312, and the first arc plate 313 and the second arc plate 314 are arranged in the connection area. The first connecting piece 311, the first arc plate 313, the second arc plate 314 and the second connecting piece 312 are spliced ​​by external bolts, so as to further improve the tightness between the first tube body 11 and the second tube body 12 to avoid leakage. Secondly, a connecting plate 321 is arranged at the lower end of the second arc plate 314, and a supporting column 322 is arranged on the connecting plate 321. By installing a plate body 323 at the end of the supporting column 322 and arranging a ground-breaking cone 324 on the plate body 323, the stability of the oil pipeline 1 during use is improved to avoid shaking.

[0039] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A submarine oil pipeline, characterized in that: include: Oil pipelines, The installation mechanism comprises an oil-soluble pressure tube and a pressure sensor; the oil-soluble pressure tube is arranged in a serpentine shape in a mounting groove provided inside the oil pipeline, and the oil-soluble pressure tube is filled with air and provided with the pressure sensor; an anti-corrosion layer is also provided inside the oil pipeline; The connecting mechanism comprises a splicing end and a load-bearing end. The end of the oil pipeline is connected to the splicing end, the splicing end is used to splice adjacent oil pipelines, and the lower end of the splicing end is connected to the load-bearing end.

2. A submarine oil pipeline according to claim 1, characterized in that: The oil pipeline comprises a first pipe body, a second pipe body and a connecting end; the first pipe body and the second pipe body are connected via the connecting end.

3. A submarine oil pipeline according to claim 2, characterized in that: The connecting end includes a connecting protrusion, one end of the first tube body and the second tube body is provided with the connecting protrusion, and the other end of the first tube body and the second tube body is provided with a recessed groove matched with the connecting protrusion.

4. The submarine oil pipeline according to claim 1, characterized in that: The anti-corrosion layer is arranged in the oil pipeline and forms an installation area between the anti-corrosion layer and the oil pipeline. The oil-soluble pressure pipe is arranged in the installation area.

5. The submarine oil pipeline according to claim 2, characterized in that: The splicing end includes a first connecting member, a second connecting member, a first curved plate, and a second curved plate; the first connecting member is installed on the first tube body, the second connecting member is installed on the second tube body, a connecting area is formed between the first connecting member and the second connecting member, the first curved plate and the second curved plate are installed at the connection between the first tube body and the second tube body, and are located in the connecting area, and the first connecting member, the second connecting member, the first curved plate and the second curved plate are connected by connecting bolts.

6. The submarine oil pipeline according to claim 5, characterized in that: Extension plates are integrally formed on both sides of the first arc plate and the second arc plate, the two extension plates are connected by connecting bolts, and the lower end of the second arc plate is connected to the bearing end.

7. The submarine oil pipeline according to claim 6, characterized in that: The bearing end includes a connecting plate, a supporting column and a plate body; the connecting plate is fixed to the lower end of the second arc-shaped plate, the lower end of the connecting plate is connected to the supporting column, and the lower end of the supporting column is fixed to the plate body.

8. The submarine oil pipeline according to claim 7, characterized in that: The cross section of the connecting plate is arc-shaped.

9. The submarine oil pipeline according to claim 7, characterized in that: A plurality of earth-breaking cones are arranged through the plate body.

10. The submarine oil pipeline according to claim 9, characterized in that: The number of the ground-breaking cones is at least four.

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