An integrated underwater Christmas tree simulation test platform

Abstract

The application discloses an integrated underwater Christmas tree simulation test platform, wherein a test platform pry body and an SCM base are arranged on a collection tray of a test platform integrated system; the test platform pry body is correspondingly provided with an SCM control system, a pressure balance system and a umbilical cable simulation system of a hydraulic system; the SCM base is connected with an underwater control module through an underwater control module mounting base; and the underwater control module is correspondingly connected with an integrated panel of a logic opening and closing needle valve and a pressure display table of the SCM control system arranged on the test platform pry body through the underwater control module mounting base. The application has the advantages that: the application has strong versatility and can be adapted to different specifications and sizes of SCMs to perform Christmas tree simulation tests on land and underwater; the application has complete functions and can integrate a test platform for testing projects such as Christmas tree valve function simulation, pressure test, oil return compensation and umbilical cable hydraulic function; and the application has strong adaptability and can test and control SCMs and underwater Christmas trees on land and underwater.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of underwater production systems, and more particularly to an integrated underwater Christmas tree simulation test platform. BACKGROUND

[0002] China's underwater production system key equipment and related application technology has long relied on imports, with high procurement and maintenance costs and long cycle. To break through the design, construction, testing and installation technology of underwater production systems at a depth of 1500 meters, promote the industrialization capability building of China's underwater production system equipment, and for the first time, a simulation test platform for an integrated underwater Christmas tree is developed for the working pressure, temperature environment and supporting tools of the underwater Christmas tree at a depth of 1500 meters, to realize the test and verification of the underwater Christmas tree, control module and related supporting tool interface and function. At the same time, it plays an important role in the simulation operation training, emergency handling and installation and debugging of operating personnel.

[0003] In the prior art application, the invention disclosed in publication number CN 113107926 B discloses a kind of underwater Christmas tree testing device and method, to realize the necessary function test of recovered underwater Christmas tree. However, the invention does not integrate each test module for application, cannot test the function and pressure of SCM of different specifications and sizes, cannot detect the cleanliness of SCM hydraulic medium, does not configure a pressure balance system and a umbilical cable simulation system to simulate the test of the Christmas tree production system, and cannot use the test platform to test the function and pressure of the test valve group and supporting tools. SUMMARY

[0004] The present application overcomes the deficiencies in the prior art and provides an integrated underwater Christmas tree simulation test platform.

[0005] An integrated underwater Christmas tree simulation test platform, a test bench integrated system is provided with a test bench sled body on the oil collection disc, and the test bench sled body is correspondingly provided with an SCM control system of a hydraulic system, a pressure balance system, a umbilical cable simulation system and an SCM base. The SCM base is connected to an underwater control module through an underwater control module mounting base. The underwater control module is correspondingly connected to an integrated panel of a logic opening and closing needle valve of the SCM control system and a pressure display table provided on the test bench sled body through the underwater control module mounting base.

[0006] The oil collection disc is provided with four guide columns with a bolt hole, and the oil collection disc is fixedly connected to the test bench sled body through the guide columns. The oil collection disc is provided with one or more oil discharge ports.

[0007] The test bench sled body is provided with a self-adaptive adaptive guide rail plate, and the self-adaptive adaptive guide rail plate is provided with a slide rail structure. Each slide rail is correspondingly provided with an SCM base.

[0008] The SCM base is provided with an SCM mounting plate, and the SCM mounting plate is provided with an underwater control module mounting base and four clamps.

[0009] The main control panel and the accessory system control panel of the SCM control system are fixedly arranged on the test bench body;

[0010] The main control panel of the SCM control system is an integrated panel of logic opening and closing needle valves and pressure display tables of the SCM control system;

[0011] The accessory system control panel is an integrated panel of logic opening and closing needle valves and pressure display tables of the pressure balance system and the umbilical cable simulation system.

[0012] The SCM control system comprises two high-pressure supply lines, two low-pressure supply lines, three SCM high-pressure input lines, eight SCM high-pressure output lines, three SCM low-pressure input lines, twenty-four SCM low-pressure output lines, three SCM oil return lines and an oil return manifold;

[0013] The interfaces of the three SCM high-pressure input lines, the eight SCM high-pressure output lines, the three SCM low-pressure input lines, the twenty-four SCM low-pressure output lines and the three SCM oil return lines are connected with the through-plate connectors provided with SCM interface through plates on the test bench body, and the corresponding interfaces of the SCM interface through plates and the underwater control module mounting base are connected by hydraulic hoses;

[0014] The eight SCM high-pressure output lines and the twenty-four SCM low-pressure output lines are connected with the driver interface through plates through four-way valves, and the driver interface through plates are correspondingly arranged with the test valve groups;

[0015] The three SCM oil return lines are connected with the oil return manifold, and the three SCM oil return lines are connected with the oil return manifold;

[0016] The pressure balance system comprises two pressure balancers provided with filters, and the pressure balancers are connected with the oil return manifold of the SCM control system; the output of each gate valve of the test valve group is connected with the oil return manifold through a hose;

[0017] The umbilical cable simulation system comprises a high-pressure accumulator and a low-pressure accumulator.

[0018] The two high-pressure supply lines and the two low-pressure supply lines are connected with the hydraulic power unit, and the two high-pressure supply lines and the two low-pressure supply lines are supplied by the hydraulic power unit;

[0019] Two of the three SCM high-pressure input lines are connected with the hydraulic power unit, and the three SCM high-pressure input lines are supplied by the hydraulic power unit,

[0020] One of the three SCM high-pressure input lines is connected with the high-pressure accumulator of the umbilical cable simulation system;

[0021] Two of the three low-pressure input paths of the SCM are connected with the hydraulic power unit and supplied by the hydraulic power unit, and one of the three low-pressure input paths of the SCM is connected with the low-pressure accumulator of the umbilical analog system;

[0022] The eight high-pressure output paths of the SCM and the twenty-four low-pressure output paths of the SCM are connected with the driver interface plate through the underwater control module mounting base, and the driver interface plate is matched with the test valve group.

[0023] The beneficial effects of the present application are:

[0024] 1. Strong universality, which can adapt to different specifications and sizes of SCMs to perform oil tree simulation testing on land and underwater;

[0025] 2. Complete functions, which can integrate to realize the test platform of the oil tree valve function simulation, pressure test, oil return compensation and umbilical hydraulic function and other projects;

[0026] 3. Strong adaptability, which can test and control the SCM and underwater oil tree in the land and underwater environment. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 The test platform hydraulic principle diagram provided by the present application is shown in the figure;

[0028] Figure 2 The front structure schematic diagram of the present application is shown in the figure;

[0029] Figure 3 The back structure schematic diagram of the present application is shown in the figure;

[0030] Figure 4 The structure schematic diagram of the oil collection disc is shown in the figure;

[0031] Figure 5 The structure schematic diagram of the SCM mounting base is shown in the figure;

[0032] Figure 6 The structure schematic diagram of the SCM mounting plate is shown in the figure

[0033] Figure 7 The schematic diagram of the test platform pipeline connection is shown in the figure.

[0034] In the figure:

[0035] 1, SCM control system; 11, high pressure supply 2-way; 12, low pressure supply 2-way; 13, SCM high pressure input 3-way; 14, SCM high pressure output 8-way; 15, SCM low pressure input 3-way; 16, SCM low pressure output 24-way; 17, SCM oil return 3-way; 18, oil return manifold; 19, buffer; 2, pressure balancing system; 21, pressure balancer; 3, umbilical cable simulation system; 31, high pressure accumulator; 32, low pressure accumulator; 4, oil collection tray; 41, guide column; 42, oil outlet; 5, test bench sled body; 51, self-adaptive adaptive guide rail plate; 6, test valve group; 61, first 5-inch underwater gate valve; 62, 4-inch underwater gate valve; 63, second 5-inch underwater gate valve; 64, 2-inch underwater gate valve; 65, 1-inch underwater gate valve; 7, underwater control module; 71, underwater control module mounting base; 8, SCM base; 81, SCM mounting plate; 82, clamp; 9, main control panel; 91, through-plate joint; 92, SCM interface through-plate; 93, driver interface through-plate; 10, accessory system control panel. DETAILED DESCRIPTION

[0036] EMBODIMENT

[0037] An integrated underwater Christmas tree simulation test platform, the test bench integrated system is provided with a test bench sled body 5 on an oil collection tray 4 of the test bench integrated system, the test bench sled body 5 is correspondingly provided with a SCM control system 1, a pressure balancing system 2, an umbilical cable simulation system 3 and a SCM base 8 of a hydraulic system, the SCM base 8 is connected with an underwater control module 7 through an underwater control module mounting base 71, and the underwater control module 7 is correspondingly connected and arranged with an integrated panel of a logic opening and closing needle valve and a pressure display table of the SCM control system 1 arranged on the test bench sled body 5 through the underwater control module mounting base 71.

[0038] The oil collection tray 4 is provided with four guide columns 41 with a bolt hole, and the oil collection tray 4 is fixedly connected with the test bench sled body 5 through the guide columns 41.

[0039] The test bench sled body 5 is provided with a self-adaptive adaptive guide rail plate 51, the self-adaptive adaptive guide rail plate 51 is provided with a slide rail structure, and one SCM base 8 is correspondingly arranged on each slide rail.

[0040] The SCM base 8 is provided with a SCM mounting plate 81, and the SCM mounting plate 81 is provided with an underwater control module mounting base 71 and four clamps 82.

[0041] The main control panel 9 and the accessory system control panel 10 of the SCM control system 1 are fixedly arranged on the test bench sled body 5.

[0042] The main control panel 9 of the SCM control system 1 is an integrated panel of a logic opening and closing needle valve and a pressure display table of the SCM control system.

[0043] The accessory system control panel 10 is an integrated panel including the logic break valve and pressure display table of the pressure balance system 2 and the umbilical simulation system 3.

[0044] The SCM control system includes a high-pressure supply 2-way 11, a low-pressure supply 2-way 12, a SCM high-pressure input 3-way 13, a SCM high-pressure output 8-way 14, a SCM low-pressure input 3-way 15, a SCM low-pressure output 24-way 16, a SCM oil return 3-way 17, and an oil return manifold 18.

[0045] The interfaces of the SCM high-pressure input 3-way 13, the SCM high-pressure output 8-way 14, the SCM low-pressure input 3-way 15, the SCM low-pressure output 24-way 16, and the SCM oil return 3-way 17 are connected to the through-plate connector 91 provided with the SCM interface through-plate 92 on the test bench pry body 5, and the corresponding interfaces between the SCM interface through-plate 92 and the underwater control module mounting base 71 are connected by hydraulic hoses.

[0046] The SCM high-pressure output 8-way 14 and the SCM low-pressure output 24-way 16 are connected to the driver interface through-plate 93 through a four-way valve, and the driver interface through-plate 93 is correspondingly provided on the test valve group 6.

[0047] The SCM oil return 3-way 17 is connected to the buffer 19, and the SCM oil return 3-way 17 is connected to the oil return manifold 18.

[0048] The pressure balance system 2 includes two pressure balancers 21 provided with filters, which are connected to the oil return manifold 18 of the SCM control system 1; the output of each gate valve of the test valve group 6 is connected to the oil return manifold 18 through a hose.

[0049] The umbilical simulation system 3 includes a high-pressure accumulator 31 and a low-pressure accumulator 32.

[0050] The high-pressure supply 2-way 11 and the low-pressure supply 2-way 12 are connected to the hydraulic power unit, and the high-pressure supply 2-way 11 and the low-pressure supply 2-way 12 are supplied by the hydraulic power unit.

[0051] Two of the SCM high-pressure input 3-way 13 are connected to the hydraulic power unit, and the SCM high-pressure input 3-way 13 is supplied by the hydraulic power unit.

[0052] One of the SCM high-pressure input 3-way 13 is connected to the high-pressure accumulator 31 of the umbilical simulation system 3.

[0053] Two of the SCM low-pressure input 3-way 15 are connected to the hydraulic power unit and are supplied by the hydraulic power unit, and one of the SCM low-pressure input 3-way 15 is connected to the low-pressure accumulator 32 of the umbilical simulation system 3.

[0054] The SCM high-voltage output 8-way 14 and the SCM low-voltage output 24-way 16 are connected to the driver interface plate 93 through the underwater control module mounting base, and the driver interface plate 93 is arranged in cooperation with the test valve group 6.

[0055] The working principle of the scheme is as follows, as shown in Figures 1-3 .

[0056] The scheme is provided with the test bench pry body 5 to provide a support structure for the SCM base 8 and the control panel and related accessories.

[0057] As shown in Figures 4-6 , the oil collecting disc 4 is provided with four guide columns 41 with a bolt hole for mounting the test bench pry body 5. The oil discharge port 42 is used for discharging oil. The SCM base 8 is arranged at a position above the oil collecting disc 4. The SCM base 8 is arranged on the self-adaptive adaptive guide rail plate 51. The position of the SCM base 8 is adjusted through the rail to adapt to various underwater control modules 7. In the embodiment, it can adapt to cylindrical or square cylindrical underwater control modules 7 with a bottom surface size of 700mm-1400mm. The English name of the underwater control module 7 is Subsea Control Module, hereinafter referred to as SCM. The SCM base 8 is provided with an SCM mounting plate 81 which is connected to the underwater control module mounting base 71 to realize the connection function. The SCM mounting plate 81 is provided with a gripper 82 for fixing and righting the underwater control module 7.

[0058] Further, in the embodiment, one first 5-inch underwater gate valve 61 and one 4-inch underwater gate valve 62 in the test valve group 6 are arranged on the test bench pry body 5 on the left side, and are limited and fixed through a clamp.

[0059] One second 5-inch underwater gate valve 63, one 2-inch underwater gate valve 64 and one 1-inch underwater gate valve 65 in the test valve group 6 are arranged on the test bench pry body 5 on the right side, and are limited and fixed through a clamp.

[0060] Further, the main control panel 9 integrates the logic opening and closing needle valve and the pressure display table of the SCM control system 1. The main control panel 9 is arranged on the front surface of the test bench pry body 5. The control hydraulic system diagram is drawn on the control panel by etching process combined with needle valves, pressure gauges and other components, so as to facilitate control and observation.

[0061] The accessory system control panel 10 integrates the logic opening and closing needle valve and the pressure display table of the pressure balance system 2 and the umbilical cable simulation system 3, and is arranged on the right side surface of the test bench pry body 5. The principle diagram of the pressure balance system 2 and the umbilical cable simulation system 3 is drawn on the control panel by etching process combined with needle valves, pressure gauges, joints and other components, so as to facilitate control and observation.

[0062] Preferably, the pressure balancing system 2 is equipped with an oil filling port for replenishing oil to the two pressure balancers 21 in the pressure balancing system, and the umbilical cable simulation system 3 is equipped with a high-pressure nitrogen filling port and a low-pressure nitrogen filling port for filling the high-pressure accumulator 31 and the low-pressure accumulator 32 in the umbilical cable simulation system 3 with nitrogen, respectively.

[0063] Furthermore, such as Figure 7 The diagram shows the pipeline connection of the test platform.

[0064] The hydraulic power unit and umbilical cable simulation system 3 act as a pressure source, providing pressure input to the underwater control module 7. Hydraulic pipes connect to the through-plate connector 91 on the SCM interface through-plate 92. The high and low pressure inputs, high and low pressure outputs, and return oil between the SCM interface through-plate 92 and the underwater control module 7 are connected via hydraulic hoses to facilitate pipeline connections for testing SCMs of different sizes. The high and low pressure outputs of the underwater control module 7 connect to the actuator interface through-plate 93. The actuator interface through-plate 93 is connected to the test valve group 6 via hydraulic hoses to facilitate testing different output pressure interfaces of the SCM. The return oil circuit of the test valve group 6 connects to the pressure balancing system 2 via hydraulic hoses and then flows into the oil tank.

[0065] Furthermore, pressure and function tests of the SCM are conducted by supplying pressure to the underwater control module 7 through the hydraulic power unit or umbilical cable simulation system 3, and information such as the opening and closing status and valve opening time of each test valve are recorded.

[0066] Furthermore, when conducting underwater tests, the pin bolts on the guide column 41 are first disconnected, the oil production tree simulation test platform assembly is lifted with a sling, and it is placed in a water tank for relevant tests and verifications, and observations and records are made.

[0067] The embodiments of the present invention have been described in detail above, but the content described is only a preferred embodiment of the present invention and should not be considered as limiting the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. An integrated underwater wellhead simulation testing platform, characterized in that: The test bench integrated system has a test bench skid (5) on the oil collection pan (4). The test bench skid (5) is equipped with the hydraulic system SCM control system (1), pressure balance system (2), umbilical cable simulation system (3) and SCM base (8). The SCM base (8) is connected to the underwater control module (7) through the underwater control module mounting base (71). The underwater control module (7) is connected to the logic on / off needle valve and pressure display gauge integrated panel of the SCM control system (1) on the test bench skid (5) through the underwater control module mounting base (71). The test bench skid (5) is provided with an adaptive guide rail plate (51), and the adaptive guide rail plate (51) is provided with a slide rail structure. Each slide rail is provided with an SCM base (8). The main control panel (9) and accessory system control panel (10) of the SCM control system (1) are fixedly mounted on the test bench skid (5); The main control panel (9) of the SCM control system (1) is an integrated panel for the logic on / off needle valve and pressure display of the SCM control system. The accessory system control panel (10) is an integrated panel that includes a logic-on-off needle valve and a pressure display gauge, comprising a pressure balancing system (2) and an umbilical cable simulation system (3).

2. The integrated underwater wellhead simulation test platform according to claim 1, characterized in that: The oil collection tray (4) is provided with four guide posts (41) containing pin holes. The oil collection tray (4) is fixedly connected to the test bench skid (5) through the guide posts (41). The oil collection tray (4) is provided with one or more oil drain ports (42).

3. The integrated underwater wellhead simulation test platform according to claim 1, characterized in that: The SCM base (8) is provided with an SCM mounting plate (81), and the SCM mounting plate (81) is provided with an underwater control module mounting base (71) and four clamps (82).

4. The integrated underwater wellhead simulation test platform according to claim 1, characterized in that: The SCM control system includes two high-pressure supply channels (11), two low-pressure supply channels (12), three SCM high-pressure input channels (13), eight SCM high-pressure output channels (14), three SCM low-pressure input channels (15), four SCM low-pressure output channels (16), three SCM return oil channels (17), and a return oil manifold (18). The interfaces of the SCM high-pressure input 3 channels (13), SCM high-pressure output 8 channels (14), SCM low-pressure input 3 channels (15), SCM low-pressure output 24 channels (16) and SCM return oil 3 channels (17) are connected to the through-plate connector (91) of the test bench skid (5) which is equipped with an SCM interface through-plate (92). The SCM interface through-plate (92) and the underwater control module mounting base (71) are connected to the corresponding interfaces by a hydraulic hose. The 8-channel (14) high-voltage output of SCM and the 24-channel (16) low-voltage output of SCM are connected to the driver interface through-plate (93) through a four-way valve. The driver interface through-plate (93) is set to correspond with the test valve group (6). The SCM return oil 3-way (17) is connected to a buffer (19), and the SCM return oil 3-way (17) is connected to the return oil manifold (18); The pressure balancing system (2) includes two pressure balancers (21) equipped with filters. The pressure balancers (21) are connected to the return oil manifold (18) of the SCM control system (1). The return oil manifold (18) is connected to the output of each gate valve of the test valve group (6) via a hose. The umbilical cable simulation system (3) includes a high-voltage accumulator (31) and a low-voltage accumulator (32).

5. The integrated underwater wellhead simulation test platform according to claim 4, characterized in that: High pressure supply line 2 (11) and low pressure supply line 2 (12) are connected to the hydraulic power unit, and the high pressure supply line 2 (11) and low pressure supply line 2 (12) are supplied by the hydraulic power unit; Two of the three SCM high-pressure input channels (13) are connected to the hydraulic power unit, and the three SCM high-pressure input channels (13) are supplied by the hydraulic power unit. One of the three high-voltage input channels (13) of the SCM is connected to the high-voltage accumulator (31) of the umbilical cable simulation system (3); Two of the three low-pressure input channels (15) of the SCM are connected to the hydraulic power unit and are supplied by the hydraulic power unit. One of the three low-pressure input channels (15) of the SCM is connected to the low-pressure accumulator (32) of the umbilical cable simulation system (3). The 8-channel (14) high-voltage output of the SCM and the 24-channel (16) low-voltage output of the SCM are connected to the driver interface through-plate (93) after being transferred through the underwater control module mounting base. The driver interface through-plate (93) is set up in conjunction with the test valve group (6).

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