Anti-scouring supporting device for gooseneck pipe of vertical pipe

Abstract

The invention discloses a stand pipe gooseneck anti-scouring supporting device which comprises a bottom plate and a supporting body, the supporting body is connected to the bottom plate, the supporting body is arranged on a seabed through the bottom plate and located below a gooseneck, a contact cambered surface is arranged on the supporting body, a limiting groove is formed in the contact cambered surface, and the limiting groove is connected with the bottom plate. A flexible material is placed in the limiting groove so that the gooseneck pipe can abut against the flexible material, and a first limiting plate and a second limiting plate are arranged on the two sides of the limiting groove correspondingly so that the flexible material can be limited, and the situation that the flexible material moves along with ocean current to be disengaged from the limiting groove is avoided. According to the anti-scouring supporting device for the vertical pipe gooseneck, the stability of the supporting body is guaranteed through the bottom plate, the supporting body is prevented from settling, it is guaranteed that the supporting function does not lose efficacy, the supporting body is provided with the contact cambered surface matched with the gooseneck in shape, and the limiting groove is filled with the flexible material with a certain height; and the support body provides flexible support for the gooseneck pipe.

Description

Technical Field

[0001] This invention belongs to the field of marine oil and gas engineering technology, and particularly relates to a riser gooseneck anti-scouring support device. Background Technology

[0002] Currently, the common practice is to fill cement sandbags under the riser bend and the gooseneck pipe respectively to support them. Furthermore, the construction process is carried out manually underwater by divers.

[0003] Therefore, underwater work involves a large workload and carries high construction risks. Furthermore, the repeated scouring by ocean currents can easily cause cement sandbags to scatter, reducing their height and weakening or even causing them to fail, thus increasing the length of the subsea pipeline suspended in the air and posing operational risks.

[0004] Therefore, there is an urgent need to design a riser gooseneck anti-scouring support device to solve the above-mentioned problems. Summary of the Invention

[0005] To address the technical problem mentioned in the background art of support failure caused by erosion at the bottom of riser bends and gooseneck pipes, a riser gooseneck pipe anti-erosion support device is provided to solve the problem of underwater stable support for gooseneck pipes.

[0006] To achieve the above objectives, the specific technical solution of the riser gooseneck anti-scouring support device of the present invention is as follows: A riser gooseneck anti-scour support device includes a base plate and a support body. The support body is connected to the base plate and is set on the seabed below the gooseneck tube via the base plate. The support body has a contact arc surface with a limiting groove. A flexible material is placed in the limiting groove so that the gooseneck tube abuts against the flexible material. A first limiting plate and a second limiting plate are respectively provided on both sides of the limiting groove to limit the flexible material and prevent it from moving away from the limiting groove with the ocean current.

[0007] Furthermore, the support body is set on the base plate along the length of the base plate.

[0008] Furthermore, a contact arc surface is provided along the width direction of the support body, and the contact arc surface is located on the side of the support body away from the bottom plate.

[0009] Furthermore, water passage holes are made along the length of the support body, and these holes are located between the support body and the bottom plate to reduce the impact of ocean currents on the support body.

[0010] Furthermore, a limiting groove is provided along the length of the contact arc surface to allow the flexible material to be laid along the length of the contact arc surface.

[0011] Furthermore, a first limiting plate and a second limiting plate are provided at intervals on the contact arc surface. The first limiting plate and the second limiting plate are located on both sides of the limiting groove to block and limit the flexible material.

[0012] Furthermore, both the first and second limiting plates are vertically connected to the contact arc surface.

[0013] Furthermore, the base plate is rectangular in shape.

[0014] Furthermore, the support structure is trapezoidal in shape.

[0015] Furthermore, the support body is connected to the base plate via limiting bolts.

[0016] The riser gooseneck anti-scouring support device of the present invention has the following advantages: The base plate ensures the stability of the support structure, prevents settlement, and guarantees its functionality. A contact arc surface matching the shape of the gooseneck tube is formed on the support structure, and a certain height of flexible material is filled into the limiting groove, providing flexible support for the gooseneck tube. This application replaces the sandbag-filled support method with a support structure, improving the stability and durability of the support structure, reducing the underwater workload for divers, and enhancing construction safety and efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the riser gooseneck anti-scouring support device of the present invention. Figure 2 This is a side view schematic diagram of the anti-scouring support device for riser gooseneck pipe of the present invention; Figure 3 This is a schematic diagram showing the connection between the gooseneck tube and the elbow.

[0018] Explanation of markings in the diagram: 1. Base plate; 2. Support body; 3. Gooseneck tube; 4. Contact arc surface; 5. Limiting groove; 6. Flexible material; 7. First limiting plate; 8. Second limiting plate; 9. Water passage hole; 10. Elbow. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of the invention and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0021] The following is a reference to the appendix. Figure 1 To be continued Figure 3 This invention describes the riser gooseneck anti-scouring support device.

[0022] like Figure 1 As shown, the riser gooseneck tube anti-scour support device of the present invention includes a base plate 1 and a support body 2. The support body 2 is connected to the base plate 1 and is set on the seabed through the base plate 1 and located below the gooseneck tube 3. The support body 2 is provided with a contact arc surface 4 and a limiting groove 5. A flexible material 6 is placed in the limiting groove 5 so that the gooseneck tube 3 abuts against the flexible material 6. A first limiting plate 7 and a second limiting plate 8 are respectively provided on both sides of the limiting groove 5 to limit the flexible material 6 and prevent the flexible material 6 from moving away from the limiting groove 5 with the sea current.

[0023] The stability of the support body 2 is ensured by the base plate 1, preventing the support body 2 from settling and ensuring that the support function does not fail. A contact arc surface 4 matching the shape of the gooseneck tube 3 is provided on the support body 2. A certain height of flexible material 6 is filled in the limiting groove 5 so that the support body 2 provides flexible support for the gooseneck tube 3.

[0024] Furthermore, such as Figure 1 and Figure 2 As shown, the support body 2 is trapezoidal in shape and is connected to the base plate 1 along the length of the base plate 1. The support body 2 provides support for the gooseneck tube 3. In use, the support body 2 is located below the gooseneck tube 3, and there is a certain gap between the support body 2 and the gooseneck tube 3 to facilitate the placement of the flexible material 6.

[0025] Furthermore, the base plate 1 itself has a certain weight, which can resist repeated scouring by ocean currents, maintain the stability of the support body 2, prevent the device from sinking, and ensure that the support function does not fail.

[0026] Specifically, a contact arc surface 4 is provided on the upper surface 2 of the support along the width direction of the support body 2. That is, the contact arc surface 4 is provided on the side of the support body 2 away from the bottom plate 1, so that the contact arc surface 4 matches the shape of the gooseneck tube 3.

[0027] Meanwhile, a water passage hole 9 is provided through the support body 2 along its length. The water passage hole 9 is located between the support body 2 and the bottom plate 1, thereby reducing the impact of the ocean current on the support body 2. Furthermore, the support body 2 provides flexible support for the gooseneck tube 3, so that when the gooseneck tube 3 experiences a small amount of settlement, it will not generate excessive stress.

[0028] As a preferred embodiment, support bodies 2 of different sizes can be pre-designed and manufactured according to different suspension heights and different pipeline diameters to meet the support requirements of various working conditions.

[0029] Furthermore, such as Figure 1 and Figure 3 As shown, a limiting groove 5 is provided along the length direction of the contact arc surface 4, and the limiting groove 5 is opened to a certain depth so that the flexible material 6 is laid along the length direction of the contact arc surface 4; wherein preferably, the flexible material 6 includes a soft pad such as a sandbag or rubber.

[0030] Furthermore, a first limiting plate 7 and a second limiting plate 8 are spaced apart and vertically connected on the contact arc surface 4. The first limiting plate 7 and the second limiting plate 8 are located on both sides of the limiting groove 5 to block and limit the flexible material 6, so as to prevent the flexible material 6 from being detached from the limiting groove due to ocean current erosion.

[0031] Furthermore, such as Figure 1 As shown, the base plate 1 is rectangular in shape, and the support body 2 is connected to the base plate 1 by limiting bolts, which makes it easy to connect support bodies 2 of different sizes on the base plate 1 according to different suspension heights and different pipeline diameters.

[0032] Based on the riser gooseneck anti-scouring support device, this invention replaces the sandbag filling support method with a support body, which improves the stability and durability of the support structure, reduces the underwater workload of divers, improves construction safety and efficiency, and ensures a stable connection between the gooseneck pipe 3 and the elbow 10 of the main pipe.

[0033] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A riser gooseneck pipe anti-erosion support device, characterized in that, The device includes a base plate and a support body. The support body is connected to the base plate and is set on the seabed below the gooseneck tube. The support body has a contact arc surface with a limiting groove. Flexible material is placed in the limiting groove so that the gooseneck tube abuts against the flexible material. A first limiting plate and a second limiting plate are respectively set on both sides of the limiting groove to limit the flexible material and prevent it from moving away from the limiting groove with the ocean current.

2. The anti-scouring support device for riser gooseneck pipes according to claim 1, characterized in that, The support body is set on the base plate along the length of the base plate.

3. The anti-scouring support device for riser gooseneck pipes according to claim 1, characterized in that, A contact arc surface is provided along the width direction of the support body, and the contact arc surface is located on the side of the support body away from the base plate.

4. The riser gooseneck anti-erosion support device according to claim 3, characterized in that, Water passage holes are made along the length of the support body and are located between the support body and the bottom plate to reduce the impact of ocean currents on the support body.

5. The anti-scouring support device for riser gooseneck pipes according to claim 1, characterized in that, A limiting groove is provided along the length of the contact arc surface to allow the flexible material to be laid along the length of the contact arc surface.

6. The anti-scouring support device for riser gooseneck pipes according to claim 5, characterized in that, A first limiting plate and a second limiting plate are spaced apart on the contact arc surface. The first limiting plate and the second limiting plate are located on both sides of the limiting groove to block and limit the flexible material.

7. The anti-scouring support device for riser gooseneck pipes according to claim 6, characterized in that, Both the first and second limiting plates are vertically connected to the contact arc surface.

8. The anti-scouring support device for riser gooseneck pipes according to claim 1, characterized in that, The base plate is rectangular in shape.

9. The anti-scouring support device for riser gooseneck pipes according to claim 1, characterized in that, The support structure is trapezoidal in shape.

10. The anti-scouring support device for riser gooseneck pipes according to claim 9, characterized in that, The support body is connected to the base plate by limit bolts.

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