A high-pressure wellhead simulation device

Abstract

The present invention relates to the field of wellhead simulation technology, and specifically to a high-pressure wellhead simulation device, including a test box and a simulation component, the simulation component including a U-shaped plate, a first cylinder, a support plate, a contraction unit, two high-pressure pipes and two conveying units, the U-shaped plate is fixedly connected to the test box and is located above the test box, the first cylinder is fixedly connected to the U-shaped plate, the contraction unit is arranged on the support plate, a test device is placed on the contraction unit, one end of the two high-pressure pipes are connected to the test box, and the test device is placed between the support plate and the contraction unit by contracting the contraction unit, the first cylinder is extended, and it moves down into the test box for a high-pressure wellhead simulation test, at this time the conveying unit inputs high-pressure gas into the high-pressure pipe and sprays it into the test box, thereby performing a simulation test on the test equipment, without the need to place the test equipment in a field well, which is more convenient for R&D personnel to use and ensures the safety of R&D personnel.

Description

Technical Field

[0001] The present invention relates to the technical field of wellhead simulation, in particular to a high-pressure wellhead simulation device. Background Art

[0002] my country is rich in coalbed methane resources, but the low permeability and adsorption characteristics of my country's coal reservoirs are bottlenecks in coalbed methane development. Therefore, how to improve the permeability and desorption rate of coal seams, and thus increase coalbed methane production, is one of the main difficulties currently faced by my country's coalbed methane development and utilization. In the mining of coalbed methane, the factory produces and develops suitable mining equipment according to the characteristics of different wellheads, and then the on-site mining personnel extend the mining equipment into the well to mine coalbed methane.

[0003] However, in the existing technology, the mining equipment placed into the well needs to be tested whether it can withstand the high pressure at the wellhead during production and research and development. Currently, it is manually moved to the high-pressure wellhead for field testing, which reduces the safety of R&D personnel, is extremely inconvenient, and affects the efficiency of production and research and development. Summary of the Invention

[0004] The purpose of the present invention is to provide a high-pressure wellhead simulation device, which solves the problem in the prior art that when mining equipment is put into a well, it is necessary to test whether it can withstand the high pressure at the wellhead during production and research and development. Currently, it is manually moved to the high-pressure wellhead for field testing, which reduces the safety of R&D personnel, is extremely inconvenient, and affects the efficiency of production and research and development.

[0005] To achieve the above object, the present invention provides a high-pressure wellhead simulation device, comprising a test box and a simulation component;

[0006] The simulation component includes a U-shaped plate, a first cylinder, a support plate, a contraction unit, two high-pressure pipes and two conveying units. The U-shaped plate is fixedly connected to the test box and is located above the test box. The first cylinder is fixedly connected to the U-shaped plate and is located above the U-shaped plate. The output end of the first cylinder passes through the U-shaped plate and is fixedly connected to the support plate. The contraction unit is arranged on the support plate. A test device is placed on the contraction unit. One end of the two high-pressure pipes is connected to the test box and is symmetrically distributed on both sides of the test box. The two conveying units are respectively connected to the other end of the corresponding high-pressure pipe.

[0007] The simulation component further includes a control panel and an observation window. The control panel is fixedly connected to the test box and is located on one side of the test box. The observation window is fixedly connected to the test box and is located below the control panel.

[0008] In which, the retraction unit includes a retraction plate, two telescopic rods, two springs and a first handle, one end of the two telescopic rods passes through the support plate and is fixedly connected to the retraction plate, the two ends of the two springs are movably connected to the top of the support plate and the top of the retraction plate respectively, the two springs are respectively sleeved on the outside of the corresponding telescopic rods, the first handle is fixedly connected to the retraction plate and is located below the retraction plate, and the test equipment is clamped between the retraction plate and the support plate.

[0009] In which, the conveying unit includes a gas booster, a bracket and a gas storage tank. The gas booster is connected to the other end of the high-pressure pipe. The bracket is fixedly connected to the gas booster and is sleeved on the outside of the gas booster. The gas storage tank is arranged below the gas booster and is connected to one side of the gas booster.

[0010] Wherein, the high-pressure wellhead simulation device further includes a sealing assembly, and the sealing assembly is arranged on the U-shaped plate.

[0011] In which, the sealing assembly includes a sealing plate and two second cylinders, the two second cylinders are fixedly connected to the U-shaped plate and are located above the U-shaped plate, the two second cylinders are symmetrically distributed on both sides of the first cylinder, the output ends of the two second cylinders pass through the U-shaped plate and are fixedly connected to the sealing plate, the sealing plate has a groove, and the groove is adapted to the support plate.

[0012] Wherein, the sealing assembly further includes a pressure relief pipe and a pressure relief valve, the pressure relief pipe is communicated with the sealing plate, and the pressure relief valve is fixedly connected to the pressure relief pipe.

[0013] The present invention provides a high-pressure wellhead simulation device, wherein the U-shaped plate supports the first cylinder, and the test equipment is placed between the support plate and the contraction unit through contraction of the contraction unit. The first cylinder is extended to move downward into the test box for a high-pressure wellhead simulation test. At this time, the delivery unit inputs high-pressure gas into the high-pressure pipe and sprays it into the test box, thereby performing a simulation test on the test equipment. Through the above-mentioned structural setting, the test equipment can be simulated tested without placing the test equipment in a field well, which is more convenient for R&D personnel to use and ensures the safety of R&D personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art.

[0015] Figure 1It is a schematic diagram of the overall structure of the first embodiment of the present invention.

[0016] Figure 2 It is a cross-sectional view of the entire first embodiment of the present invention.

[0017] Figure 3 The present invention Figure 2 A magnified view of the local structure at point A.

[0018] Figure 4 It is a schematic diagram of the overall structure of the second embodiment of the present invention.

[0019] Figure 5 It is a cross-sectional view of the entire second embodiment of the present invention.

[0020] Figure 6 The present invention Figure 5 A magnified view of the local structure at point B.

[0021] Figure 7 It is a schematic diagram of the overall structure of the third embodiment of the present invention.

[0022] Figure 8 It is an overall cross-sectional view of a third embodiment of the present invention.

[0023] 101-test box, 102-U-shaped plate, 103-first cylinder, 104-support plate, 105-high-pressure pipe, 106-test equipment, 107-control panel, 108-observation window, 109-retraction plate, 110-telescopic rod, 111-spring, 112-first handle, 113-gas booster, 114-bracket, 115-gas tank, 201-sealing plate, 202-second cylinder, 203-groove, 204-pressure relief pipe, 205-pressure relief valve, 301-sliding seat, 302-moving wheel, 303-sliding block, 304-second handle, 305-slide groove. DETAILED DESCRIPTION

[0024] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0025] First embodiment:

[0026] See also Figures 1 to 3 ,in Figure 1 is a schematic diagram of the overall structure of the first embodiment of the present invention, Figure 2 is a cross-sectional view of the entire first embodiment of the present invention, Figure 3 The present invention Figure 2An enlarged view of the local structure at point A of the embodiment of the present invention provides a high-pressure wellhead simulation device, comprising a test box 101 and a simulation assembly. The simulation assembly comprises a U-shaped plate 102, a first cylinder 103, a support plate 104, a retraction unit, two high-pressure pipes 105, two delivery units, a control panel 107, and an observation window 108. The retraction unit comprises a retraction plate 109, two telescopic rods 110, two springs 111, and a first handle 112. The test device 106 is clamped between the retraction plate 109 and the support plate 104. The delivery unit comprises a gas booster 113, a bracket 114, and a gas tank 115.

[0027] According to this specific embodiment, the test equipment 106 is placed between the retraction plate 109 and the support plate 104, and the first cylinder 103 is extended to move downward into the test box 101 for a high-pressure wellhead simulation test. At this time, the gas booster 113 pressurizes the gas and inputs it into the test box 101 from the high-pressure pipe 105.

[0028] Among them, the U-shaped plate 102 is fixedly connected to the test box 101 and is located above the test box 101, the first cylinder 103 is fixedly connected to the U-shaped plate 102 and is located above the U-shaped plate 102, the output end of the first cylinder 103 passes through the U-shaped plate 102 and is fixedly connected to the support plate 104, the contraction unit is arranged on the support plate 104, and a test device 106 is placed on the contraction unit, one end of the two high-pressure pipes 105 are connected to the test box 101, and are symmetrically distributed on both sides of the test box 101, and the two conveying units are respectively connected to the other end of the corresponding high-pressure pipes 105. The U-shaped plate 102 supports the first cylinder 103, and the contraction unit contracts to place the test equipment 106 between the support plate 104 and the contraction unit. The first cylinder 103 extends and moves downward into the test box 101 to perform a high-pressure wellhead simulation test. At this time, the delivery unit inputs high-pressure gas into the high-pressure pipe 105 and sprays it into the test box 101, thereby performing a simulation test on the test equipment 106 without placing the test equipment 106 in a field well. This makes it more convenient for R&D personnel to use and ensures their safety.

[0029] Secondly, the control panel 107 is fixedly connected to the test box 101 and is located on one side of the test box 101. The observation window 108 is fixedly connected to the test box 101 and is located below the control panel 107. The control panel 107 allows the operator to operate the simulation device and control the start and stop of the first cylinder 103 and other equipment. The observation window 108 facilitates observation of the simulation conditions inside.

[0030] At the same time, one end of each of the two telescopic rods 110 passes through the support plate 104 and is fixedly connected to the retracting plate 109. The two ends of the two springs 111 are movably connected to the upper part of the support plate 104 and the upper part of the retracting plate 109, respectively. The two springs 111 are respectively sleeved on the outside of the corresponding telescopic rods 110. The first handle 112 is fixedly connected to the retracting plate 109 and is located below the retracting plate 109. The testing device 106 is clamped between the retracting plate 109 and the support plate 104. Pulling the first handle 112 downward drives the retracting plate 109 and the telescopic rods 110 downward, and the springs 111 are stretched. At this time, the testing device 106 is placed between the retracting plate 109 and the support plate 104. Release the first handle 112, and the springs 111 contract, driving the retracting plate 109 upward, clamping the testing device 106.

[0031] In addition, the gas booster 113 is connected to the other end of the high-pressure pipe 105. The bracket 114 is fixedly connected to the gas booster 113 and is mounted on the outside of the gas booster 113. The gas tank 115 is located below the gas booster 113 and is connected to one side of the gas booster 113. The gas tank 115 can store test gas. The gas booster 113 pressurizes the gas and then inputs it into the test box 101 through the high-pressure pipe 105. The bracket 114 supports the gas booster 113.

[0032] When using a high-pressure wellhead simulation device of this embodiment, the first handle 112 is pulled downward, driving the retraction plate 109 and the telescopic rod 110 to move downward, and the spring 111 is stretched. At this time, the test equipment 106 is placed between the retraction plate 109 and the support plate 104, and the first handle 112 is released. The spring 111 contracts, driving the retraction plate 109 to move upward, clamping and fixing the test equipment 106, and the first cylinder 103 is extended to move it downward into the test box 101 for a high-pressure wellhead simulation test. At this time, the gas booster 113 pressurizes the gas and inputs it into the test box 101 from the high-pressure pipe 105. Through the above-mentioned structural arrangement, the test equipment 106 can be simulated tested without the need to place the test equipment 106 in a real well, which is more convenient for R&D personnel to use and ensures the safety of R&D personnel.

[0033] Second embodiment:

[0034] Based on the first embodiment, please refer to Figures 4 to 6 ,in Figure 4 is a schematic diagram of the overall structure of the second embodiment of the present invention, Figure 5is a cross-sectional view of the entire second embodiment of the present invention, Figure 6 The present invention Figure 5 The present invention provides a high-pressure wellhead simulation device, further comprising a sealing assembly, the sealing assembly comprising a sealing plate 201 , two second cylinders 202 , a pressure relief pipe 204 , and a pressure relief valve 205 . The sealing plate 201 has a groove 203 .

[0035] According to this specific embodiment, the second cylinder 202 drives the sealing plate 201 to move downward, and at the same time the support plate 104 enters the groove 203 to fit, sealing the top of the test box 101, and at the same time opens the pressure relief valve 205, and pressure can be relieved through the pressure relief pipe 204.

[0036] The sealing assembly is disposed on the U-shaped plate 102. The sealing assembly can seal the test box 101 to improve the simulation effect.

[0037] Secondly, the two second cylinders 202 are both fixedly connected to the U-shaped plate 102 and are both located above the U-shaped plate 102. The two second cylinders 202 are symmetrically distributed on either side of the first cylinder 103. The output ends of the two second cylinders 202 both pass through the U-shaped plate 102 and are both fixedly connected to the sealing plate 201. The sealing plate 201 has a groove 203 that fits with the support plate 104. The second cylinders 202 extend, driving the sealing plate 201 downward. Simultaneously, the support plate 104 enters the groove 203 and fits in, sealing the top of the test box 101.

[0038] At the same time, the pressure relief pipe 204 is communicated with the sealing plate 201, and the pressure relief valve 205 is fixedly connected to the pressure relief pipe 204. When the pressure relief valve 205 is opened, pressure can be relieved through the pressure relief pipe 204.

[0039] When using a high-pressure wellhead simulation device of this embodiment, the second cylinder 202 extends to drive the sealing plate 201 to move downward, and at the same time the support plate 104 enters the groove 203 to fit, sealing the top of the test box 101. At the same time, the pressure relief valve 205 is opened, and the pressure can be relieved through the pressure relief pipe 204, thereby adjusting the internal air pressure, thereby sealing the test box 101 and improving the simulation effect.

[0040] Third embodiment:

[0041] The high-pressure wellhead simulation device also includes two sliding assemblies, each of which is disposed below the corresponding gas tank 115. The sliding assembly includes a sliding seat 301, multiple moving wheels 302, two sliders 303, and a second handle 304. The gas tank 115 is placed above the sliding seat 301, which is located below the bracket 114. The multiple moving wheels 302 are fixedly connected to the sliding seat 301 and are sequentially distributed below the sliding seat 301. The two sliders 303 are fixedly connected to the sliding seat 301 and are symmetrically distributed on both sides of the sliding seat 301. The bracket 114 has two sliding grooves 305. The sides of the two sliders 303 away from the sliding seat 301 are both slidably connected to the sliding grooves 305. The second handle 304 is fixedly connected to the sliding seat 301 and is located at one end of the sliding seat 301.

[0042] Based on the second embodiment, please refer to Figure 7 and Figure 8 ,in Figure 7 is a schematic diagram of the overall structure of the third embodiment of the present invention, Figure 8 The present invention provides a high-pressure wellhead simulation device, which also includes two sliding assemblies, each of which includes a sliding seat 301, a plurality of moving wheels 302, two sliders 303, and a second handle 304. The bracket 114 has two sliding grooves 305.

[0043] According to this specific embodiment, the connection between the gas tank 115 and the gas booster 113 is disconnected, and then the second handle 304 is pulled, the slider 303 slides in the slide groove 305, and the sliding seat 301 is driven to slide out from under the bracket 114 through the moving wheel 302 to replace the gas tank 115.

[0044] The two sliding assemblies are respectively arranged below the corresponding gas storage tanks 115. The sliding assemblies can drive the gas storage tanks 115 to slide, making it easy to disassemble and replace the gas storage tanks 115.

[0045] Secondly, the gas tank 115 is placed above the sliding seat 301, which is located below the bracket 114. The plurality of moving wheels 302 are fixedly connected to the sliding seat 301 and are sequentially distributed below the sliding seat 301. The two sliders 303 are fixedly connected to the sliding seat 301 and are symmetrically distributed on both sides of the sliding seat 301. The bracket 114 has two sliding grooves 305. The sides of the two sliders 303 away from the sliding seat 301 are slidably connected to the sliding grooves 305. The second handle 304 is fixedly connected to the sliding seat 301 and is located at one end of the sliding seat 301. The moving wheels 302 can move the sliding seat 301, which supports the gas tank 115. After the sliding seat 301 is placed, the sliders 303 are located in the sliding grooves 305 to prevent deviation and improve movement stability. The second handle 304 facilitates pulling the sliding seat 301 to move.

[0046] When using a high-pressure wellhead simulation device of this embodiment, when the gas tank 115 needs to be replaced, the staff first disconnects the gas tank 115 and the gas booster 113, and then pulls the second handle 304, the slider 303 slides in the slide groove 305, and drives the sliding seat 301 to slide out from under the bracket 114 through the moving wheel 302, and the gas tank 115 is replaced, which facilitates the disassembly and replacement of the gas tank 115, and there is no need to carry the gas tank 115, saving the staff's physical strength.

[0047] The above disclosure is merely one or more preferred embodiments of the present application and is not intended to limit the scope of the present application. A person skilled in the art will understand that all or part of the processes of the above embodiments and equivalent changes made in accordance with the claims of the present application are still within the scope of the present application.

Claims

1. A high-pressure wellhead simulation device, comprising a test box, characterized in that: Also included are analog components; The simulation component includes a U-shaped plate, a first cylinder, a support plate, a contraction unit, two high-pressure pipes and two delivery units. The U-shaped plate is fixedly connected to the test box and is located above the test box. The first cylinder is fixedly connected to the U-shaped plate and is located above the U-shaped plate. The output end of the first cylinder passes through the U-shaped plate and is fixedly connected to the support plate. The contraction unit is provided on the support plate. A test device is placed on the contraction unit. One end of each of the two high-pressure pipes is connected to the test box and is symmetrically distributed on both sides of the test box. The two delivery units are respectively connected to the other end of the corresponding high-pressure pipe. The retraction unit includes a retraction plate, two telescopic rods, two springs and a first handle, one end of each of the two telescopic rods passes through the support plate and is fixedly connected to the retraction plate, both ends of the two springs are movably connected to the upper part of the support plate and the upper part of the retraction plate, respectively, the two springs are respectively sleeved on the outside of the corresponding telescopic rods, the first handle is fixedly connected to the retraction plate and is located below the retraction plate, and the test device is clamped between the retraction plate and the support plate; The high-pressure wellhead simulation device further includes a sealing assembly, which is arranged on the U-shaped plate; The sealing assembly includes a sealing plate and two second cylinders, the two second cylinders are fixedly connected to the U-shaped plate and are located above the U-shaped plate, the two second cylinders are symmetrically distributed on both sides of the first cylinder, the output ends of the two second cylinders pass through the U-shaped plate and are fixedly connected to the sealing plate, the sealing plate has a groove, and the groove is adapted to the support plate.

2. The high-pressure wellhead simulation device according to claim 1, characterized in that: The simulation component further includes a control panel and an observation window. The control panel is fixedly connected to the test box and is located on one side of the test box. The observation window is fixedly connected to the test box and is located below the control panel.

3. The high-pressure wellhead simulation device according to claim 1, characterized in that: The delivery unit includes a gas booster, a bracket and a gas storage tank. The gas booster is connected to the other end of the high-pressure pipe. The bracket is fixedly connected to the gas booster and is sleeved on the outside of the gas booster. The gas storage tank is arranged below the gas booster and is connected to one side of the gas booster.

4. The high-pressure wellhead simulation device according to claim 1, characterized in that: The sealing assembly further includes a pressure relief pipe and a pressure relief valve. The pressure relief pipe is communicated with the sealing plate, and the pressure relief valve is fixedly connected to the pressure relief pipe.

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