阅读说明：本技术 一种海底管道终端 (Submarine pipeline terminal ) 是由 梁辉 方伟 邢广阔 苏锋 张飞 李刚 钟朝廷 王凤云 王长涛 石磊 孟宪武 陈 于 2021-07-15 设计创作，主要内容包括：本发明公开了一种海底管道终端,包括防沉板；设备模块,所述设备模块包括结构框架、设置在所述结构框架上的管线、设置在所述管线一端的水下连接口、设置在所述水下连接口的压力帽、以及连接在所述管线另一端的延长管,所述结构框架的一端铰接在所述防沉板上。本发明可以使用J型铺管船首端铺设方法完成海底管道终端与海底管道的连接且同时进行铺设安装,还能降低铺设时所受到的弯矩载荷及张力,并减少起始铺设锚缆设备的投入成本。(The invention discloses a submarine pipeline terminal, which comprises an anti-sinking plate; the equipment module comprises a structural frame, a pipeline arranged on the structural frame, an underwater connector arranged at one end of the pipeline, a pressure cap arranged on the underwater connector, and an extension pipe connected to the other end of the pipeline, wherein one end of the structural frame is hinged to the anti-sinking plate. The invention can complete the connection between the submarine pipeline terminal and the submarine pipeline by using the method for laying the head end of the J-shaped pipe laying ship, and can simultaneously lay and install the submarine pipeline, thereby reducing the bending moment load and the tension applied during laying, and reducing the investment cost of initial anchor cable laying equipment.)

1. A subsea pipeline terminal, characterized by: comprises that

An anti-sinking plate;

the equipment module comprises a structural frame, a pipeline arranged on the structural frame, an underwater connector arranged at one end of the pipeline, a pressure cap arranged on the underwater connector, and an extension pipe connected to the other end of the pipeline, wherein one end of the structural frame is hinged to the anti-sinking plate.

2. Submarine pipeline terminal according to claim 1, wherein the anti-sag plate is provided, at intervals, with two articulated portions, to which the structural frame is articulated by means of an articulation axis.

3. The subsea pipeline terminal according to claim 1, wherein the anti-settling plate comprises a bottom plate having a plurality of perforations disposed therethrough, and an anti-settling frame disposed on the bottom plate.

4. The subsea pipeline termination of claim 1, wherein a stop member is provided between the structural frame and the anti-sag plate for limiting the range of rotation of the structural frame.

5. The subsea pipeline termination of claim 4, wherein the stop member is a first bungee cord connected to the structural frame and the anti-sag plate.

6. The subsea pipeline termination of claim 1, wherein the anti-sag plate has locking pins corresponding to lateral positions of the structural frame, the structural frame being locked in position by the locking pins.

7. The subsea pipeline termination of claim 1, wherein the extension pipe is connected to the pipeline by a transition forging.

8. The subsea pipeline termination of claim 1, wherein a support member is provided between the extension pipe and the structural frame for supporting the extension pipe.

9. The subsea pipeline termination of claim 8, wherein the support member is a second bungee cord connected to the extension pipe and the structural frame.

10. A submarine pipeline terminal according to claim 1, wherein the end of the anti-heave plate remote from the extension pipe is provided with a starter cable hang-off point.

Technical Field

The invention relates to the technical field of submarine pipeline connecting equipment, in particular to a submarine pipeline terminal.

Background

As one of the main development modes for the development of marine oil and gas fields, underwater production systems are increasingly widely used. The submarine pipeline terminal belongs to submarine pipeline connecting equipment, has the function of interconnecting submarine pipelines, and is key equipment of a submarine production system of an offshore oil and gas field.

For the development engineering of marine oil and gas fields, particularly deep-water marine oil and gas development, the J-shaped submarine pipeline laying vessel has the advantages of strong laying capacity, large adaptive water depth and the like, so the J-shaped submarine pipeline laying vessel has an important position in the marine oil and gas development engineering.

However, the existing submarine pipeline terminal cannot meet the condition that the connection with the submarine pipeline and the simultaneous installation of the submarine pipeline are completed by using the method for laying the head end of the J-shaped pipe laying vessel, the bending moment load and the tension applied during the laying are large, and the investment cost of the initial anchor cable laying equipment is high.

Disclosure of Invention

The invention provides a submarine pipeline terminal, which aims to solve the problems that the conventional submarine pipeline terminal cannot meet the conditions of connecting with a submarine pipeline and laying and installing the submarine pipeline by using a J-shaped pipe laying ship head end laying method, is subjected to large bending moment load and tension during laying, and has high investment cost for laying anchor cable equipment at the beginning.

In order to solve the above technical problems, the present invention provides a submarine pipeline terminal, comprising an anti-sinking plate; the equipment module comprises a structural frame, a pipeline arranged on the structural frame, an underwater connector arranged at one end of the pipeline, a pressure cap arranged on the underwater connector, and an extension pipe connected to the other end of the pipeline, wherein one end of the structural frame is hinged to the anti-sinking plate.

Furthermore, the anti-sinking plate is provided with two hinge parts at intervals, and the structural frame is hinged to the two hinge parts through a hinge shaft.

Furthermore, the anti-sinking plate comprises a bottom plate and an anti-sinking frame, wherein a plurality of through holes are formed in the bottom plate in a penetrating mode, and the anti-sinking frame is arranged on the bottom plate.

Furthermore, a limiting component used for limiting the rotation range of the structural frame is arranged between the structural frame and the anti-sinking plate.

Furthermore, the limiting component is a first elastic rope connected to the structural frame and the anti-sinking plate.

Furthermore, the anti-sinking plate is provided with a locking pin corresponding to the side position of the structural frame, and the structural frame is locked by the locking pin.

Further, the extension pipe is connected to the pipeline through a transition forging.

Further, a support member for supporting the extension pipe is provided between the extension pipe and the structural frame.

Further, the support member is a second bungee cord connected to the extension tube and the structural frame.

Furthermore, one end of the anti-sinking plate, which is far away from the extension pipe, is provided with a starting cable hoisting point.

According to the equipment module of the submarine pipeline terminal, the extension pipe is designed, and the structural frame is hinged with the anti-sinking plate, so that the extension pipe can enter the J-shaped laying equipment to be connected with a submarine pipeline and be laid and installed at the same time, and the equipment module can rotate within a certain angle range, so that the connection between the submarine pipeline terminal and the submarine pipeline and the laying and installation at the same time can be completed by using the laying method of the head end of the J-shaped pipe laying ship, the bending moment load and the tension applied during laying can be reduced, and the investment cost of initial laying of anchor cable equipment is reduced.

Drawings

Fig. 1 is a schematic structural view of a rotating structural frame in a submarine pipeline terminal according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a structural frame in an initial state in a submarine pipeline terminal according to an embodiment of the present invention.

Wherein, 1, an anti-sinking plate; 11. a base plate; 12. an anti-settling frame; 13. a hinge portion; 14. a rope tying part; 15. a locking pin; 16. a starting cable hoisting point; 2. an equipment module; 21. a structural frame; 22. a pipeline; 23. a pressure cap; 24. an extension tube; 25. hinging a shaft; 26. a wire slot; 27. transition forgings; 28. a first support section; 29. a second support portion; 210. a third support portion; 3. a first elastic cord; 4. a second elastic cord.

Detailed Description

The present invention is further described with reference to the following drawings and specific examples so that those skilled in the art can better understand the present invention and can practice the present invention, but the examples are not intended to limit the present invention.

The embodiment of the invention provides a submarine pipeline terminal, which is shown in the attached drawings 1-2 and comprises an anti-sinking plate 1 and an equipment module 2.

Specifically, the anti-settling plate 1 includes a bottom plate 11 provided with a plurality of through holes and an anti-settling frame 12 provided on the bottom plate 11, wherein the number of through holes is set according to actual requirements. The holes are formed in the bottom plate 11, so that the resistance generated by water flow can be reduced in the installation process of the integral structure, and the water can be quickly drained when the seabed is in place, so that the stable state can be reached as soon as possible, and the support and the stability of the whole life cycle on the seabed can be met.

In particular, the design of the anti-settlement plate 1 is related to the properties of the soil of the seabed where the equipment is located.

Specifically, the equipment module 2 includes a structural frame 21, a pipeline 22 disposed on the structural frame 21, a subsea connection port disposed at one end of the pipeline 22, a pressure cap 23 disposed at the subsea connection port, and an extension pipe 24 connected to the other end of the pipeline 22, and one end of the structural frame 21 is hinged to the anti-settling plate 1.

Specifically, extension tube 24 is connected to pipeline 22 by a transition forging 27. This strengthens the connection of extension tube 24 to pipeline 22 and improves sealing.

The extension pipe 24 can enter the J-shaped laying device to be connected with the submarine pipeline, and then can be laid and installed together with the submarine pipeline.

Specifically, the anti-sinking plate 1 is provided with two hinge portions 13 at intervals, and the structural frame 21 is hinged to the two hinge portions 13 through a hinge shaft 25. By the design of the two articulated parts 13, the stability of the articulated connection of the structural frame 21 to the anti-settling plate 1 can be increased.

Specifically, the hinge 13 is provided on the anti-settling frame 12.

Specifically, a stopper member for limiting a rotation range of the structural frame 21 is provided between the structural frame 21 and the sinkers 1.

Specifically, the limiting member is a first elastic rope 3 connected to the structural frame 21 and the anti-sinking plate 1. The use of elastic cords can slow the force applied to the structural frame 21 during rotation and facilitate the rotation of the structural frame 21. Of course, the limiting structure may be a spring, a common steel rope, a common rope, etc. connecting the structural frame 21 and the anti-sinking plate 1 according to actual requirements.

Specifically, the structural frame 21 is provided with two wire chases 26 corresponding to the hinged end thereof at intervals, the edge position of the anti-sinking plate 1 corresponding to one side of the wire chases 26 is provided with a rope binding portion 14 corresponding to the two wire chases 26, and a first elastic rope 3 is connected between one corresponding wire chase 26 and one rope binding portion 14. The first elastic rope 3 can be better connected to the structural frame 21 and the anti-sinking plate 1 through the design of the thread groove 26 and the thread binding part.

Specifically, the rope portion 14 is provided on the anti-settling frame 12.

Specifically, by the design of the limit member, the rotation range of the equipment module 2 can be limited, and interference collision with other structures can be avoided, so that the construction risk can be reduced.

Specifically, the anti-sinking plate 1 has a locking pin 15 corresponding to a side position of the structural frame 21, and the structural frame 21 is locked by the locking pin 15. This allows further insertion of the locking frame 21 by means of the locking pin 15 when the frame 21 is not rotated.

Specifically, the locking pin 15 is provided on the anti-settling frame 12.

Specifically, a support member for supporting the extension pipe 24 is provided between the extension pipe 24 and the structural frame 21. By the arrangement of the support member, laying tension can be provided for the submarine pipeline.

Specifically, the support member is a second bungee cord 4 connected to the extension tube 24 and the structural frame 21. The elastic rope can reduce the force applied on the extension pipe 24, so as to prevent the support member from breaking and being unable to support the extension pipe 24 when the support member is applied with force. Of course, the limiting structure may be a spring, a common steel rope, a common rope, etc. connecting the extension pipe 24 and the structural frame 21 according to actual requirements.

Specifically, the extension pipe 24 is provided with a first supporting portion 28, the structural frame 21 is provided with two second supporting portions 29 at intervals corresponding to one end of the first supporting portion 28, the middle position of the structural frame 21 is provided with two third supporting portions 210 at intervals, the second elastic cord 4 is sequentially connected to the second supporting portion 29 and the third supporting portion 210 at the other side through the first supporting portion 28 by the third supporting portion 210 and the second supporting portion 29 at one side, wherein the second supporting portion 29 is higher than the third supporting portion with respect to the plane of the structural frame 21. The second elastic rope 4 can be better fixed through the arrangement of the supporting part.

Specifically, the end of the anti-settling plate 1 away from the extension pipe 24 is provided with a starting cable hoisting point 16, wherein the structural strength of the starting cable hoisting point 16 meets the laying requirements. The initial laying cable may be connected to the initial cable hoist point 16 by its placement to provide laying tension to the subsea pipeline.

In the embodiment, the equipment module 2 of the submarine pipeline terminal is provided with the extension pipe 24 by design, and the structural frame 21 is hinged with the anti-sinking plate 1, so that the extension pipe 24 can enter the J-shaped laying equipment to be connected with a submarine pipeline and be laid and installed at the same time, and the equipment module 2 can rotate within a certain angle range, so that the connection between the submarine pipeline terminal and the submarine pipeline can be completed by using the method for laying the head end of the J-shaped pipe laying ship, and the laying and installation can be performed at the same time, the bending moment load and the tension applied during laying can be reduced, and the investment cost for laying the anchor cable equipment at the beginning can be reduced.

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.