Land testing system for testing related equipment of underwater production system

Abstract

The invention discloses a land test system for testing related equipment of an underwater production system, which comprises a subsea pipeline leakage detection test module, a manifold leakage detection and positioning test module and a plugging device performance test module, and is characterized in that the subsea pipeline leakage detection test module comprises a first subsea pipeline, an air source conveying assembly and a first water tank; the first subsea pipeline is installed in the first water tank, one end of the first subsea pipeline is connected with the air source conveying assembly, a plurality of leakage holes are formed in the first subsea pipeline, the plugging device performance testing module comprises a second subsea pipeline and a first water injection and pressing assembly, and the first water injection and pressing assembly is connected with the second subsea pipeline to inject water into the second subsea pipeline. The underwater production system leakage detection and emergency disposal device can be used for simultaneous testing or independent testing, is more flexible to use, solves the problem that the leakage detection and emergency disposal device of the underwater production system cannot be further tested after leaving a factory, is more favorable for ensuring the reliability, and reduces the risk caused by incapability of accurate detection and positioning after installation and use.

Description

Technical Field

[0001] The present invention relates to the technical field of underwater production system leakage detection and disposal, and in particular to a land testing system for testing equipment related to the underwater production system. Background Art

[0002] The deep sea has rich oil and gas resources. Deepwater oil and gas development is characterized by high risk, high investment, high technology and high returns. The underwater production system is the "throat channel" of deepwater oil and gas exploitation. It faces leakage risks caused by challenges such as severe sea conditions and severe erosion conditions. Once a leakage accident occurs in the underwater production system, the adverse effects such as economic losses, ecological disasters, and international reputation are difficult to estimate. Therefore, leakage detection and emergency response of the underwater production system are important guarantees for the safe and efficient exploitation of deepwater oil and gas.

[0003] With the large-scale use of underwater production systems, corresponding leak detection and emergency response equipment are also widely used, such as plugs, pressure transmitters, hydrophones and detection optical fibers. However, there is currently a lack of supporting land testing systems. After the successful development of the equipment, only factory tests are carried out, and the reliability of these devices cannot be further tested. As a result, their reliability cannot be fully ensured. After installation and use, there is a risk of not being able to accurately detect and locate, and accurately determine whether there is a leak.

[0004] Therefore, there is an urgent need for a land test system for testing equipment related to underwater production systems. Summary of the invention

[0005] The present invention aims to solve the above-mentioned technical problem, namely, to solve the problem that the corresponding leakage detection and emergency disposal equipment of the existing underwater production system lacks a supporting land testing system, and after the successful development of the equipment, only factory testing is carried out, and the reliability of these equipment cannot be further tested by themselves, resulting in the inability to fully ensure its reliability. After installation and use, there is a problem of being unable to accurately detect and locate and accurately judge whether there is a risk of leakage.

[0006] To this end, the present invention provides a land test system for testing equipment related to an underwater production system, including a sea pipe leakage detection test module, a manifold leakage detection and positioning test module and a plugging device performance test module, the sea pipe leakage detection test module includes a first sea pipe, an air source delivery component and a first water tank, the first sea pipe is installed in the first water tank and one end of the first sea pipe is connected to the air source delivery component, and the other end is in a closed state, the air source delivery component is configured to deliver air source to the inside of the first sea pipe, and the first sea pipe is provided with a plurality of leakage holes, the plugging device performance test module includes a second sea pipe and a first water injection pressure component, the inside of the second sea pipe is used to place the plugging device, the output port of the first water injection pressure component is connected to the second sea pipe to inject water therein, the manifold leakage detection and positioning test module includes a second water injection pressure component and a pipeline collection module, the second water injection pressure component is connected to the pipeline collection module for injecting water into the inside, and a reserved interface for installing leakage detection and positioning components is reserved on the pipeline collection module.

[0007] In a specific embodiment of the above-mentioned land test system for testing equipment related to underwater production systems, the air source delivery assembly includes an air source pump, a first flow meter and a first delivery pipeline. The air source pump is connected to the first delivery pipeline to deliver the air source into the first delivery pipeline. The first flow meter is installed on the first delivery pipeline. One end of the first sea pipe is connected to the first delivery pipeline. The water inlet of the first water injection and pressure relief assembly is connected to the first water tank.

[0008] In a specific embodiment of the above-mentioned land test system for testing equipment related to underwater production systems, a first flange blind plate is detachably fixed to one end of the first sea pipe away from the gas source delivery assembly, and each leakage hole on the first sea pipe is detachably fixedly connected with a pipe clamp to seal the leakage hole in the installed state.

[0009] In a specific embodiment of the above-mentioned land test system for testing equipment related to the underwater production system, the first water injection and pressure testing assembly includes a first delivery pump, a first valve, a first pressure gauge and a second delivery pipeline. The water inlet of the first delivery pump is connected to the first water tank, and the water outlet of the first delivery pump is connected to one end of the second delivery pipeline. The first valve and the first pressure gauge are installed on the second delivery pipeline in sequence according to the water flow delivery direction, and the other end of the second delivery pipeline is connected to the second sea pipe.

[0010] In a specific embodiment of the above-mentioned land test system for testing equipment related to underwater production systems, the land test system also includes a second water tank, which is connected to the first water tank through a pumping assembly, and the second sea pipe is arranged on one side of the second water tank. A first drainage pipeline is provided at the bottom end of the second sea pipe, and the first drainage pipeline is connected to the second water tank. A second valve is installed on the first drainage pipeline.

[0011] In a specific embodiment of the above-mentioned land test system for testing equipment related to underwater production systems, there are multiple second sea pipes with at least two different inner diameter sizes, the second delivery pipeline is detachably fixedly connected to each of the second sea pipes, an end of the second sea pipe away from the second delivery pipeline is detachably fixedly connected with a second flange blind plate, a second drainage pipeline connected to a second water tank is fixedly provided at the bottom of the second sea pipe, a second flow meter and a third valve are installed on the second drainage pipeline, and a portion inside the second sea pipe for installing the plugging device is located between the first drainage pipeline and the second drainage pipeline.

[0012] In a specific embodiment of the above-mentioned land test system for testing equipment related to underwater production systems, the interface parts on the second water tank for connecting with the first drain pipe and the second drain pipe respectively are both located above the liquid level in the second water tank.

[0013] In a specific embodiment of the above-mentioned land test system for testing equipment related to underwater production systems, the second water injection and pressure relief assembly includes a third delivery pipeline, a water storage tank, a fourth delivery pipeline and a plunger pump. The water storage tank is connected to the first water tank through the third delivery pipeline. A second delivery pump and a fourth valve are installed on the third delivery pipeline. The water outlet of the water storage tank is connected to the plunger pump and the fourth delivery pipeline in sequence. A fifth valve and a second pressure gauge are installed on the fourth delivery pipeline. The fourth delivery pipeline is connected to the pipeline collection module for water injection.

[0014] In a specific embodiment of the above-mentioned land test system for testing equipment related to underwater production systems, the pipeline collection module includes an inlet pipe, a drain pipe and a plurality of branch pipes distributed side by side, the fourth delivery pipeline is connected to each branch pipe respectively through the inlet pipe, the drain pipe is respectively connected to one end of the branch pipe away from the inlet pipe for drainage, the drain pipe is connected to the second water tank, and the sixth valve, the reserved interface and the seventh valve are installed on the branch pipe in sequence according to the direction of water flow.

[0015] In a specific embodiment of the above-mentioned land test system for testing equipment related to the underwater production system, a first filter is installed on the second delivery pipeline between the first valve and the first pressure gauge, and a second filter is installed on the third delivery pipeline between the water storage tank and the second delivery pump.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention integrates the leakage detection test of the subsea pipeline, the leakage and positioning test of the manifold, and the performance test of the plugging device. The tests can be performed simultaneously or separately without affecting each other. The use is more flexible and convenient. At the same time, it solves the problem that the leakage detection and emergency disposal equipment of the underwater production system cannot be further tested after leaving the factory. It is more conducive to ensuring the reliability of each equipment and reducing the risk caused by the inability to accurately detect and position after installation and use.

[0017] 2. The present invention designs the water circuits of the three test modules into a connected circulating water circuit, which not only ensures that each test module has sufficient water supply, but also solves the problem of drainage during the test, making the entire operation process more convenient.

[0018] 3. In the present invention, the number of second sea pipes can be designed to be multiple, and the performance of multiple plugs can be tested at the same time, which improves the test efficiency. In addition, the inner diameter size of the second sea pipe can be designed to be different types, so that different types of plugs can be tested without frequently replacing the second sea pipe, making the operation more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which: Figure 1 It is a schematic diagram of the overall structure of the land test system provided by the present invention for testing equipment related to the underwater production system when only one second sea pipe is installed; Figure 2 It is a schematic diagram of the overall structure of a land test system provided by the present invention for testing equipment related to an underwater production system when multiple second sea pipes are installed; Figure 3 yes Figure 2 A top view of the arrangement of multiple second sea pipes.

[0020] List of reference numerals: 1. First water tank; 2. First sea pipe; 3. Air source pump; 4. First flow meter; 5. First delivery pipeline; 6. First delivery pump; 7. Second delivery pump; 8. First valve; 9. First filter; 10. First pressure gauge; 11. Fourth valve; 12. Second delivery pump; 13. Water storage tank; 14. Second filter; 15. Second pressure gauge; 16. Fifth valve; 17. Second sea pipe; 18. First drainage pipeline; 19. Reducer; 20. The second valve; 21. The plug; 22. The second water tank; 23. The branch pipeline; 24. The sixth valve; 25. The seventh valve; 26. The reserved interface; 27. The drainage pipe; 28. The water inlet pipe; 29. ​​The fifth delivery pipeline; 30. The third delivery pump; 31. The eighth valve; 32. The second drainage pipeline; 33. The second flow meter; 34. The third valve; 35. The second flange blind plate; 36. The third delivery pipeline; 37. The fourth delivery pipeline; 38. The plunger pump. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the system or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are used to define components, only for the convenience of distinguishing the above components, and unless otherwise stated, the above terms have no special meanings and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "setting", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] The present invention relates to the field of underwater production system leakage detection and disposal technology, and in particular to a land testing system for testing equipment related to underwater production systems. The purpose is to solve the problem that the corresponding leakage detection and emergency disposal equipment of the existing underwater production system lacks a matching land testing system, and the equipment is only tested at the factory after successful development, and the reliability of these equipment cannot be further tested by the equipment itself, resulting in the inability to fully ensure its reliability. After installation and use, there is a problem that it is impossible to accurately detect and locate and accurately judge whether there is a risk of leakage. To this end, the present invention provides a land test system for testing equipment related to an underwater production system, including a sea pipe leakage detection test module, a manifold leakage detection and positioning test module, and a plugging device performance test module. The sea pipe leakage detection test module includes a first sea pipe, an air source delivery component, and a first water tank. The first sea pipe is installed in the first water tank and one end of the first sea pipe is connected to the air source delivery component, and the other end is in a closed state. The air source delivery component is configured to deliver air to the interior of the first sea pipe. The first sea pipe is provided with a plurality of leakage holes. The plugging device performance test module includes a second sea pipe and a first water injection and pressure relief component. The interior of the second sea pipe is used to place the plugging device, and the output port of the water injection and pressure relief component is connected to the second sea pipe to inject water therein. The manifold leakage detection and positioning test module includes a second water injection pressure component and a pipeline collection module. The second water injection pressure component is connected to the pipeline collection module for injecting water into the interior. The pipeline collection module is provided with a reserved interface for installing leakage detection and positioning components. The present invention integrates the leakage detection test of the subsea pipeline, the leakage and positioning test of the manifold, and the performance test of the plugger. The tests can be performed simultaneously or separately without affecting each other. The use is more flexible and convenient. At the same time, the problem that the leakage detection and emergency disposal equipment of the underwater production system cannot be further tested after leaving the factory is solved. This is more conducive to ensuring the reliability of each equipment and reducing the risk caused by the inability to accurately detect and position after installation and use.

[0025] The land testing system for testing equipment related to an underwater production system provided by an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0026] See also Figure 1-2The present invention provides a land test system for testing equipment related to an underwater production system, including a sea pipe leakage detection test module, a manifold leakage detection and positioning test module and a plug 21 performance test module. The sea pipe leakage detection test module includes a first sea pipe 2, an air source delivery component and a first water tank 1. The first sea pipe 2 is installed in the first water tank 1 and one end of the first sea pipe 2 is connected to the air source delivery component, and the other end is in a closed state. The air source delivery component is configured to deliver air source to the inside of the first sea pipe 2. The first sea pipe 2 is provided with a plurality of leakage holes. The plug 21 performance test module includes a second sea pipe 17 and a first water injection pressure component. The plug 21 is placed inside the second sea pipe 17. The output port of the first water injection pressure component is connected to the second sea pipe 17 to inject water therein. The manifold leakage detection and positioning test module includes a second water injection pressure component and a pipeline collection module. The second water injection pressure component is connected to the pipeline collection module for injecting water into the inside. A reserved interface 26 for installing a leakage detection and positioning component is reserved on the pipeline collection module. An optical fiber for leak detection can be wound around the first sea pipe 2. A leak hole is set on the first sea pipe 2 and gas is introduced into the sea pipe to simulate a sea pipe leak. Then, information is detected through the optical fiber to test whether the leak can be successfully detected, thereby determining whether the optical fiber can work normally, that is, testing whether its reliability meets the standards.

[0027] Specifically, the gas source delivery assembly includes a gas source pump 3, a first flowmeter 4 and a first delivery pipeline 5. The gas source pump 3 is connected to the first delivery pipeline 5 to deliver the gas source into the first delivery pipeline 5. The first flowmeter 4 is installed on the first delivery pipeline 5. One end of the first sea pipe 2 is connected to the first delivery pipeline 5. The water inlet of the first water injection and pressure component is connected to the first water tank 1. The gas source pump 3 is connected to the gas source for delivery to the first delivery pipeline 5. The first flowmeter 4 detects the flow rate passing through, thereby indirectly realizing that the flow rate of the gas in the first delivery pipeline 5 can be adjusted. When the first sea pipe 2 is in use, it is immersed in the water of the first water tank 1.

[0028] In one embodiment, a first blind flange is detachably fixed to one end of the first sea pipe 2 away from the gas source delivery assembly, and a pipe clamp is detachably fixedly connected to each leakage hole on the first sea pipe 2 to block the leakage hole in the installed state. The pipe clamp is clamped at the position where the leakage hole is set, and is in a closed state when the first sea pipe 2 is installed in the first water tank 1, so as to avoid the first sea pipe 2 being immersed in the first water tank 1 before the gas is introduced, causing water to flow into the first sea pipe 2 from the leakage hole and affect the introduction of gas. At the same time, the corresponding leakage hole can be selected to be opened according to different detection positions, while other leakage holes are in a closed state, which has the advantage of more flexible use.

[0029] In one embodiment, see Figure 1-2The first water injection and pressure relief assembly includes a first delivery pump 6, a first valve 8, a first pressure gauge 10 and a second delivery pipeline. The water inlet of the first delivery pump 6 is connected to the first water tank 1, and the water outlet of the first delivery pump 6 is connected to one end of the second delivery pipeline. The first valve 8 and the first pressure gauge 10 are installed on the second delivery pipeline in sequence according to the water flow delivery direction, and the other end of the second delivery pipeline is connected to the second sea pipe 17.

[0030] Specifically, the first delivery pump 6 can be a centrifugal pump, and a first filter 9 is installed on the second delivery pipeline between the first valve 8 and the first pressure gauge 10. The first filter 9 is used to filter the water flowing through, and the first pressure gauge 10 is used to detect the pressure in the second delivery pipeline. The first water tank 1 provides water to the first delivery pump 6.

[0031] In one embodiment, see Figure 1-2 The land test system also includes a second water tank 22, which is connected to the first water tank 1 through a pumping assembly. The second sea pipe 17 is arranged on one side of the second water tank 22. The bottom end of the second sea pipe 17 is provided with a first drainage pipeline 18, which is connected to the second water tank 22. A second valve 20 is installed on the first drainage pipeline 18.

[0032] Specifically, the pumping assembly includes a third delivery pump 30, a fifth delivery pipeline 29 and an eighth valve 31. One end of the fifth delivery pipeline 29 is connected to the second water tank 22, and the other end of the fifth delivery pipeline 29 is connected to the first water tank 1. The eighth valve 31 and the third delivery pump 30 are sequentially installed on the fifth delivery pipeline 29 according to the water flow delivery direction. The third delivery pump 30 can be a centrifugal pump.

[0033] The specific operation process of the performance test module of the plugger 21 is as follows: the plugger 21 is sent to the specified position in the second sea pipe 17, and then the first valve 8 and the first delivery pump 6 are opened to deliver the water in the first water tank 1 to the second sea pipe 17 after filtering. Due to the blocking of the plugger 21, there is no water in the second sea pipe 17 on the rear side of the plugger 21, and then the pressure is increased to the set pressure and maintained for the set time. After the set time is reached, it is determined whether the pressure changes. If it changes, it is determined that a leak occurs, that is, there is a problem with the sealing performance of the plugger 21. If there is no change, it is determined that the sealing performance of the plugger 21 is good.

[0034] In the present application, there are two specific implementation methods for the number of second sea pipes 17 to be installed. The first specific implementation method is: Figure 1 The second delivery pipeline can be connected to only one second sea pipe 17 in a detachable manner, and different plugging devices 21 can be matched by replacing the second sea pipes 17 with different inner diameters; the second specific implementation method is: refer to Figure 2-3, there are multiple second sea pipes 17 and at least two different inner diameter sizes, multiple second sea pipes 17 are arranged side by side, the second delivery pipeline is detachably fixedly connected to each second sea pipe 17, one end of the second sea pipe 17 away from the second delivery pipeline is detachably fixedly connected to a second flange blind plate 35, a second drainage pipeline 32 connected to the second water tank 22 is fixed at the bottom of the second sea pipe 17, a second flow meter 33 and a third valve 34 are installed on the second drainage pipeline 32, and the part of the second sea pipe 17 for installing the plug 21 is located between the first drainage pipeline 18 and the second drainage pipeline 32. The second flange blind plate 35 is connected to the second sea pipe 17 in a detachable and fixed manner, and can be disassembled when the plug 21 is installed. When the installation is completed, the second flange blind plate 35 is installed, so that the sealing of the second sea pipe 17 between the plug 21 and the second flange blind plate 35 can be ensured.

[0035] When the number of second sea pipes 17 installed is one, the sealing performance of the plug 21 can be detected by the front and back changes of the first pressure gauge 10. When multiple second sea pipes 17 are installed, the front and back changes of the first pressure gauge 10 can only determine whether there is a leak in the second sea pipe 17 blocked by the plug 21, and it is impossible to test which second sea pipe 17 blocked by the plug 21 has a leak. At this time, it is necessary to judge according to the value change of the second flow meter 33. If the value of the second flow meter 33 changes before and after the test, it means that the sealing performance of the plug 21 in the second sea pipe 17 is not good and there is a leak. If there is no change, it means that there is no leak. The first drain pipe and the second drain pipe are used to discharge the water in the second sea pipe 17 into the second water tank 22, and then return it to the first water tank 1 through the second water tank 22 to ensure the recycling of water flow. Not only does it ensure that each test module has sufficient water supply, but it also solves the problem of drainage during the test, making the entire operation process more convenient.

[0036] In addition, the interface parts on the second water tank 22 for connecting with the first drain pipe and the second drain pipe respectively are both located above the liquid level in the second water tank 22, which helps the water flow in the second sea pipe 17 to be automatically discharged into the second water tank 22 and reduce the residual water in the second sea pipe 17.

[0037] In the present application, the number of second sea pipes 17 can be designed to be multiple, and the sealing performance of multiple plugs 21 can be tested at the same time, which improves the test efficiency. In addition, the inner diameter size of the second sea pipe 17 can be designed to be different types, so that different types of plugs 21 can be tested, and there is no need to frequently replace the second sea pipe 17, making the operation more convenient. Since the inner diameter of the second sea pipe 17 for testing the plug 21 is relatively large, the second delivery pipeline is connected to the second sea pipe 17 through a reducer 19, so that the second delivery pipeline does not need to be designed with a larger size, which helps to reduce costs. When multiple second sea pipes 17 are connected, the end of the second delivery pipeline is connected to the transition pipeline, and an interface for connecting to the reducer 19 is provided on the transition pipeline, that is, a reducer 19 is installed on each interface, so that the second delivery pipeline can inject water into each second sea pipe 17. The connection between the second delivery pipeline and the transition pipeline, the transition pipeline and the reducer 19, and the reducer 19 and the second sea pipe 17 is all detachable, and can be disassembled and replaced as needed.

[0038] In addition, in the present application, the water in the second water tank 22 is transported to the first water tank 1 through a pumping assembly, and the water in the first water tank 1 is then transported to the water storage tank 13 through a second delivery pump 127, so that the water flow in the first water tank 1 is in a flowing state, better simulating the underwater water flow environment.

[0039] In the present application, the performance test module of the plug 21 can also perform pressure resistance test of pipelines, such as pressure resistance test of flexible pipes, pipeline joints, etc. When performing the pressure resistance test, since the second sea pipe 17 and the second transmission pipeline are designed as a detachable structure, the second sea pipe 17 can be disassembled, and then a soft pipe can be installed, and water can be injected into the flexible pipe to pressurize it to achieve the pressure resistance test of the flexible pipe.

[0040] In one embodiment, see Figure 1-2 The second water injection and pressure relief assembly includes a third delivery pipeline 36, a water storage tank 13, a fourth delivery pipeline 37 and a plunger pump 38. The water storage tank 13 is connected to the first water tank 1 through the third delivery pipeline 36. The second delivery pump 127 and the fourth valve 11 are installed on the third delivery pipeline 36. The water outlet of the water storage tank 13 is connected to the plunger pump 38 and the fourth delivery pipeline 37 in sequence. The fourth delivery pipeline 37 is installed with a fifth valve 16 and a second pressure gauge 15. The fourth delivery pipeline 37 is connected to the pipeline collection module for water injection.

[0041] Specifically, the second filter 14 is installed on the third delivery pipeline 36 between the water storage tank 13 and the second delivery pump 127. The second delivery pump 127 delivers the water in the first water tank 1 to the water storage tank 13, and the water in the water storage tank 13 is pumped to the pipeline collection module through the plunger pump 38, and the water is discharged to the second water tank 22 through the pipeline collection module, realizing the water circulation mode.

[0042] In the present application, the pipeline collection module includes an inlet pipe 28, a drain pipe 27 and a plurality of branch pipes 23 distributed side by side. The fourth delivery pipeline 37 is connected to each branch pipe 23 through the inlet pipe 28, and the drain pipe 27 is connected to one end of the branch pipe 23 away from the inlet pipe 28 for drainage. The drain pipe 27 is connected to the second water tank 22, and the sixth valve 24, the reserved interface 26 and the seventh valve 25 are installed on the branch pipe 23 in sequence according to the direction of water flow.

[0043] In the present application, the pipeline collection module can be directly arranged above the second water tank 22, so that the water outlet of the drainage pipe 27 can be directly facing downward to achieve drainage in the second water tank 22.

[0044] The number of reserved interfaces 26 is flexibly set according to requirements. The reserved interfaces 26 are in a closed state when not in use and are opened when in use. For example, the reserved interfaces 26 can be sealed by a flange blind plate, and the flange blind plate only needs to be removed when in use. The reserved interfaces 26 can be installed with equipment such as hydrophones or pressure transmitters for detecting and locating leaks. After installation, the seventh valve 25 is opened, and water is discharged from the branch pipe 23. Information such as pressure changes is used to test whether these equipment can detect leaks and locate the leak. The pipeline collection module simulates the various pipelines in the pipeline gathering area in the underwater production system, making the simulation more realistic. The opening and closing of the sixth valve 24 is used to control whether the branch pipe 23 is flowing with water.

[0045] In the above embodiment, the fifth valve 16, the first six valves and the seventh valve 25 may all be ball valves.

[0046] In the above-mentioned various embodiments, the present invention integrates the leakage detection test of the subsea pipeline, the leakage and positioning test of the manifold, and the performance test of the plugging device, which can be tested simultaneously or separately without affecting each other, making it more flexible and convenient to use. At the same time, it solves the problem that the leakage detection and emergency disposal equipment of the underwater production system cannot be further tested after leaving the factory, which is more conducive to ensuring the reliability of each equipment and reducing the risk caused by the inability to accurately detect and position after installation and use.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A land test system for testing equipment related to underwater production systems, characterized in that: It includes a sea pipe leakage detection test module, a manifold leakage detection and positioning test module and a plugging device performance test module. The sea pipe leakage detection test module includes a first sea pipe, an air source delivery component and a first water tank. The first sea pipe is installed in the first water tank and one end of the first sea pipe is connected to the air source delivery component, and the other end is in a closed state. The air source delivery component is configured to deliver air source to the inside of the first sea pipe. The first sea pipe is provided with a plurality of leakage holes. The plugging device performance test module includes a second sea pipe and a first water injection pressure component. The inside of the second sea pipe is used to place the plugging device. The output port of the first water injection pressure component is connected to the second sea pipe to inject water therein. The manifold leakage detection and positioning test module includes a second water injection pressure component and a pipeline collection module. The second water injection pressure component is connected to the pipeline collection module for injecting water into the inside. A reserved interface for installing leakage detection and positioning components is reserved on the pipeline collection module.

2. The land testing system for testing equipment related to underwater production systems according to claim 1, characterized in that: The air source delivery component includes an air source pump, a first flow meter and a first delivery pipeline. The air source pump is connected to the first delivery pipeline to deliver the air source into the first delivery pipeline. The first flow meter is installed on the first delivery pipeline. One end of the first sea pipe is connected to the first delivery pipeline. The water inlet of the first water injection and pressure assembly is connected to the first water tank.

3. The land testing system for testing equipment related to underwater production systems according to claim 1, characterized in that: A first flange blind plate is detachably fixed to one end of the first sea pipe away from the gas source delivery assembly, and a pipe clamp is detachably fixedly connected to each leakage hole on the first sea pipe to block the leakage hole in the installed state.

4. The land testing system for testing equipment related to underwater production systems according to claim 2, characterized in that: The first water injection and pressure relief assembly includes a first delivery pump, a first valve, a first pressure gauge, and a second delivery pipeline. The water inlet of the first delivery pump is connected to the first water tank, the water outlet of the first delivery pump is connected to one end of the second delivery pipeline, the first valve and the first pressure gauge are installed on the second delivery pipeline in sequence according to the water flow delivery direction, and the other end of the second delivery pipeline is connected to the second sea pipe.

5. The land testing system for testing equipment related to underwater production systems according to claim 4, characterized in that: The land testing system also includes a second water tank, which is connected to the first water tank through a pumping assembly. The second sea pipe is arranged on one side of the second water tank. A first drainage pipeline is provided at the bottom end of the second sea pipe. The first drainage pipeline is connected to the second water tank, and a second valve is installed on the first drainage pipeline.

6. The land testing system for testing equipment related to underwater production systems according to claim 5, characterized in that: There are multiple second sea pipes with at least two different inner diameter sizes. The second delivery pipeline is detachably fixedly connected to each of the second sea pipes. An end of the second sea pipe away from the second delivery pipeline is detachably fixedly connected with a second flange blind plate. A second drainage pipeline connected with a second water tank is fixedly provided at the bottom of the second sea pipe. A second flow meter and a third valve are installed on the second drainage pipeline. A portion inside the second sea pipe for installing a plugging device is located between the first drainage pipeline and the second drainage pipeline.

7. The land testing system for testing equipment related to underwater production systems according to claim 6, characterized in that: The interface parts on the second water tank used for connecting with the first drain pipe and the second drain pipe respectively are both located above the liquid level in the second water tank.

8. The land testing system for testing equipment related to underwater production systems according to claim 5, characterized in that: The second water injection and pressure relief assembly includes a third delivery pipeline, a water storage tank, a fourth delivery pipeline and a plunger pump. The water storage tank is connected to the first water tank through the third delivery pipeline. The second delivery pump and the fourth valve are installed on the third delivery pipeline. The water outlet of the water storage tank is connected to the plunger pump and the fourth delivery pipeline in sequence. The fifth valve and the second pressure gauge are installed on the fourth delivery pipeline. The fourth delivery pipeline is connected to the pipeline collection module for water injection.

9. The land testing system for testing equipment related to underwater production systems according to claim 8, characterized in that: The pipeline collection module includes an inlet pipe, a drain pipe and a plurality of branch pipes distributed side by side. The fourth delivery pipeline is connected to each branch pipe through the inlet pipe, and the drain pipe is connected to one end of the branch pipe away from the inlet pipe for drainage. The drain pipe is connected to the second water tank. The sixth valve, the reserved interface and the seventh valve are installed on the branch pipe in sequence according to the direction of water flow.

10. The land testing system for testing equipment related to underwater production systems according to claim 8, characterized in that: A first filter is installed on the second delivery pipeline between the first valve and the first pressure gauge, and a second filter is installed on the third delivery pipeline between the water storage tank and the second delivery pump.

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