Underwater manifold with high integration level

Abstract

The utility model relates to the technical field of underwater manifolds, in particular to a high-integration-level underwater manifold, a structural frame provides a place for installation of the underwater manifold, a process pipeline system comprises a pipeline support, the process pipeline system is fixedly arranged on the structural frame through the pipeline support, the process pipeline system is connected with an underwater pipeline, and the underwater pipeline is arranged on the structural frame. The small pipe system is fixedly arranged on the structural frame, the control equipment is used for controlling the on-off condition of the process pipeline system and the small pipe system, and the control equipment comprises an umbilical cable terminal device and a liquid fly line; welding integration of a jumper pipe and a manifold process pipeline system, pre-laying and connection of an electro-hydraulic fly line on a manifold structure and welding integration of a supporting base of an umbilical cable terminal device and the manifold structure can be completed on the land, the workload of offshore hoisting, underwater measurement, flange connection and fly line connection can be greatly reduced, the offshore construction period is shortened, and the construction efficiency is improved. The construction cost is saved.

Description

Technical Field

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

[0002] Subsea manifolds are one of the core pieces of equipment in subsea oil and gas development. In conventional subsea oil and gas cluster manifold development models, the umbilical cable terminal unit is usually installed as an independent subsea equipment skid with its own support base, requiring separate lowering during offshore installation. The electro-hydraulic flywires between the manifold and the wellhead Christmas tree are typically hoisted and lowered separately after the Christmas tree and manifold are installed, with both ends connected to the Christmas tree and manifold underwater. Subsea jumpers are also usually installed offshore. During installation, the distance and angle between the interfaces to be connected must first be measured underwater. Based on the measurement data, the jumpers are prefabricated, and then hoisted, lowered, and the flange interfaces at both ends are connected and pressure tested.

[0003] The conventional development model described above requires multiple hoisting, lowering, and underwater connection operations at sea, resulting in a large workload, long construction period, and high cost. Furthermore, in some projects with limited operating space, it presents significant challenges for divers. Utility Model Content

[0004] The main objective of this invention is to provide a highly integrated underwater manifold to solve the problem of multiple hoisting, lowering, and underwater connection operations required at sea, as mentioned in related technologies.

[0005] To achieve the above objectives, according to one aspect of the present invention, a highly integrated underwater manifold is provided, comprising: a structural frame that provides a location for the installation of the underwater manifold;

[0006] A process pipeline system, the process pipeline system including a pipeline support, the pipeline support fixing the process pipeline system to a structural frame, the process pipeline system being connected to an underwater pipeline;

[0007] Small tubing system, which is fixedly mounted on the structural frame;

[0008] The control device is used to control the on / off status of the process pipeline system and the small pipe system. The control device includes an umbilical cable termination device and a liquid fly wire.

[0009] Furthermore, the structural frame includes a main structure, a flying wire pre-laying extension structure, and an umbilical cable terminal device support base structure. The main structure is fixedly disposed in the middle of the upper surface of the flying wire pre-laying extension structure, and the umbilical cable terminal device support base structure is fixedly disposed in one corner of the upper surface of the flying wire pre-laying extension structure.

[0010] Furthermore, the process pipeline system also includes pipeline groups and connection groups. The umbilical cable terminal device is fixedly mounted on the umbilical cable terminal device support base structure. The pipeline group includes a main manifold and a branch manifold. The connection group includes a tee and an elbow. The main manifold and the branch manifold are interconnected through the tee and the elbow. The main manifold and the branch manifold are fixedly mounted on the main structure by pipeline supports.

[0011] Furthermore, the small pipe system includes a small pipe, a small pipe valve, a small pipe support, and a small pipe clamp. The small pipe is fixedly mounted on the main structure by the small pipe support, the small pipe valve is fixedly mounted on the small pipe, and the small pipe clamp is mounted on the small pipe.

[0012] Furthermore, the process pipeline system also includes ball valves, flanges, and gate valves. The ball valves are fixedly installed on the manifold branch pipes, the flanges are fixedly installed on the manifold main pipes and the ends of the manifold branch pipes, and the gate valves are fixedly installed on the manifold branch pipes.

[0013] Furthermore, the control device also includes a multiphase flow meter, a temperature and pressure sensor, and a ball-passing indicator. The multiphase flow meter is fixedly installed at the end of the manifold branch pipe, the temperature and pressure sensor is fixedly installed in the middle of the manifold main pipe, and the ball-passing indicator is fixedly installed at the end of the manifold main pipe.

[0014] Furthermore, one end of the liquid fly wire is connected to the small tube, and the other end is connected to the wellhead.

[0015] Compared with the prior art, this utility model has the following advantages: it can complete the welding and integration of cross-connectors and manifold process pipeline systems on land, pre-lay and connect electro-hydraulic flywires on the manifold structure, and weld and integrate the support base of the umbilical cable terminal device with the manifold structure, which can significantly reduce the workload of offshore hoisting, underwater measurement, flange connection and flywire connection, shorten the offshore construction period and save construction costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0017] Figure 2 This is a top view of the structural frame of this utility model;

[0018] Figure 3 This is an isometric drawing of the process pipeline system of this utility model;

[0019] Figure 4 This is an isometric drawing of the small tube system of this utility model.

[0020] Illustration:

[0021] 1. Structural frame; 2. Pipeline system; 3. Control equipment; 4. Process pipeline system; 5. Umbilical cable terminal unit; 6. Pipeline support; 7. Liquid fly wire; 8. Main structure; 9. Fly wire pre-laying extension structure; 10. Umbilical cable terminal unit support base structure; 11. Main manifold pipe; 12. Ball valve; 13. Multiphase flow meter; 14. Tee; 15. Flange; 16. Manifold branch pipe; 17. Elbow; 18. Gate valve; 19. Temperature and pressure sensor; 20. Ball indicator; 21. Pipeline; 22. Pipeline valve; 23. Pipeline support; 24. Pipeline clamp. Detailed Implementation

[0022] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0023] Please see Figures 1 to 4 This embodiment provides a highly integrated underwater manifold, including: a structural frame 1, which provides a location for the installation of the underwater manifold;

[0024] The process pipeline system 4 includes a pipeline support 6, which fixes the process pipeline system 4 to the structural frame 1 and connects the process pipeline system 4 to the underwater pipeline.

[0025] Small pipe system 2, which is fixedly installed on the structural frame 1;

[0026] Control device 3 is used to control the on / off status of process pipeline system 4 and pipe system 2. Control device 3 includes umbilical cable terminal device 5 and liquid fly wire 7.

[0027] The structural frame 1 includes a main structure 8, a flying wire pre-laying extension structure 9, and an umbilical cable terminal device support base structure 10. The main structure 8 is fixedly installed in the middle of the upper surface of the flying wire pre-laying extension structure 9, and the umbilical cable terminal device support base structure 10 is fixedly installed in one corner of the upper surface of the flying wire pre-laying extension structure 9.

[0028] The process pipeline system 4 also includes pipeline groups and connection groups. The umbilical cable terminal device 5 is fixedly installed on the umbilical cable terminal device support base structure 10. The pipeline group includes a main manifold 11 and a branch manifold 16. The connection group includes a tee 14 and an elbow 17. The main manifold 11 and the branch manifold 16 are interconnected through the tee 14 and the elbow 17. The main manifold 11 and the branch manifold 16 are fixedly installed on the main structure 8 through the pipeline support 6.

[0029] The small pipe system 2 includes a small pipe 21, a small pipe valve 22, a small pipe support 23, and a small pipe clamp 24. The small pipe 21 is fixedly mounted on the main structure 8 through the small pipe support 23, the small pipe valve 22 is fixedly mounted on the small pipe 21, and the small pipe clamp 24 is mounted on the small pipe 21.

[0030] The process pipeline system 4 also includes a ball valve 12, a flange 15 and a gate valve 18. The ball valve 12 is fixed on the manifold branch pipe 16, the flange 15 is fixed on the manifold main pipe 11 and the end of the manifold branch pipe 16, and the gate valve 18 is fixed on the manifold branch pipe 16.

[0031] The control device 3 also includes a multiphase flow meter 13, a temperature and pressure sensor 19, and a ball indicator 20. The multiphase flow meter 13 is fixedly installed at the end of the manifold branch pipe 16, the temperature and pressure sensor 19 is fixedly installed in the middle of the manifold main pipe 11, and the ball indicator 20 is fixedly installed at the end of the manifold main pipe 11.

[0032] One end of the liquid fly line 7 is connected to the small pipe 21, and the other end is connected to the wellhead.

[0033] When installing the main manifold 11, the end of the main manifold 11 is placed in the annular cavity of the pipeline support 6 to prevent the main manifold 11 from rotating. During offshore installation, the liquid fly wire 7 and the electric fly wire are pre-laid on the manifold structure and the connection between the fly wire and the manifold is completed. Then, they are lowered as a whole with the manifold. Underwater, only the connection between the fly wire and the Christmas tree needs to be completed. This saves a lot of work on separately lowering and connecting the fly wires, shortening the offshore construction period and saving operating costs. The upper structure of the manifold is extended, and the umbilical cable terminal support base structure 10 is integrated with the manifold structure. The structure welding is completed on land in advance, and then it is lowered as a whole with the manifold. This saves the construction of separately lowering the umbilical cable terminal support base structure 10, shortening the offshore construction period and saving operating costs. The jumper pipe is integrated with the main manifold 11. The pipe section is welded to the manifold pipeline in land in advance, and then it is lowered as a whole with the manifold. This saves the construction of jumper pipe measurement, prefabrication, and separate lowering, shortening the offshore construction period and saving operating costs.

[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A highly integrated underwater manifold, characterized in that, include: Structural frame (1), which provides a location for the installation of underwater manifolds; The process pipeline system (4) includes a pipeline support (6), which fixes the process pipeline system (4) on the structural frame (1) and the process pipeline system (4) is connected to the underwater pipeline. Small pipe system (2), which is fixedly mounted on the structural frame (1); The control device (3) is used to control the on / off status of the process pipeline system (4) and the small pipe system (2). The control device (3) includes an umbilical cable terminal device (5) and a liquid fly wire (7).

2. The highly integrated underwater manifold according to claim 1, characterized in that, The structural frame (1) includes a main structure (8), a flying wire pre-laying extension structure (9), and an umbilical cable terminal device support base structure (10). The main structure (8) is fixedly installed in the middle of the upper surface of the flying wire pre-laying extension structure (9), and the umbilical cable terminal device support base structure (10) is fixedly installed in one corner of the upper surface of the flying wire pre-laying extension structure (9).

3. The highly integrated underwater manifold according to claim 2, characterized in that, The process pipeline system (4) also includes pipeline groups and connection groups. The umbilical cable terminal device (5) is fixedly installed on the umbilical cable terminal device support base structure (10). The pipeline group includes a main manifold (11) and a branch manifold (16). The connection group includes a tee (14) and an elbow (17). The main manifold (11) and the branch manifold (16) are interconnected through the tee (14) and the elbow (17). The main manifold (11) and the branch manifold (16) are fixedly installed on the main structure (8) through the pipeline support (6).

4. The highly integrated underwater manifold according to claim 3, characterized in that, The small pipe system (2) includes a small pipe (21), a small pipe valve (22), a small pipe support (23), and a small pipe clamp (24). The small pipe (21) is fixed on the main structure (8) by the small pipe support (23), the small pipe valve (22) is fixed on the small pipe (21), and the small pipe clamp (24) is on the small pipe (21).

5. The highly integrated underwater manifold according to claim 3, characterized in that, The process pipeline system (4) also includes a ball valve (12), a flange (15) and a gate valve (18). The ball valve (12) is fixed on the manifold branch pipe (16), the flange (15) is fixed on the ends of the manifold main pipe (11) and the manifold branch pipe (16), and the gate valve (18) is fixed on the manifold branch pipe (16).

6. The highly integrated underwater manifold according to claim 3, characterized in that, The control device (3) also includes a multiphase flow meter (13), a temperature and pressure sensor (19), and a ball indicator (20). The multiphase flow meter (13) is fixedly installed at the end of the manifold branch pipe (16), the temperature and pressure sensor (19) is fixedly installed in the middle of the manifold main pipe (11), and the ball indicator (20) is fixedly installed at the end of the manifold main pipe (11).

7. The highly integrated underwater manifold according to claim 1, characterized in that, One end of the liquid fly wire (7) is connected to the small tube (21), and the other end is connected to the wellhead.

Images