Supporting cylinder assembly of pressure gauge

Abstract

The utility model provides a pressure gauge supporting cylinder assembly. The pressure gauge supporting cylinder assembly comprises a pressure gauge supporting cylinder. The pressure gauge supporting cylinder is provided with a first butt joint port, a first flow channel and a first inner cavity. The first flow channel is arranged between the first butt joint opening and the first inner cavity. The first butt joint port is used for butt joint with a pressure meter; the first inner cavity is used for sleeving an external pipe body, and the lower end of the pressure gauge supporting cylinder is provided with a guide part and is in butt joint through the guide part; when the external pipe body is connected to the pressure gauge supporting cylinder, the external pipe body is located in the first inner cavity, and the flow channel of the external pipe body is communicated with the first inner cavity and is connected with the pressure gauge through the first inner cavity, the first flow channel and the first butt joint port, so that the pressure gauge can detect the pressure of the external pipe body, and the pressure gauge supporting cylinder provides a stable installation environment for the pressure gauge. The pressure gauge is fixed at a specific position, and it is ensured that the pressure gauge can accurately measure the pressure at the specific position. Meanwhile, the pressure gauge supporting cylinder can protect the pressure gauge from being affected by the underground severe environment, and the measuring effect of the pressure gauge is guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of pressure gauge support assembly, and in particular to a pressure gauge support assembly. Background Technology

[0002] With the development of technology, pressure gauges are used to measure the pressure of gases or liquids and can be applied to people's lives or industry. In the current technology, existing pressure gauges are assembled separately and connected to external pipes. Therefore, the application environment of the pressure gauge is in an overall exposed state and is easily affected by the harsh underground environment, resulting in poor measurement performance of existing pressure gauges. Utility Model Content

[0003] The purpose of this invention is to provide a pressure gauge support assembly. The pressure gauge support has a first pair of interfaces, a first flow channel, and a first inner cavity. The first flow channel is located between the first pair of interfaces and the first inner cavity. The first pair of interfaces is used to connect to the pressure gauge. The first inner cavity is used to house an external tube. The lower end of the pressure gauge support has a guide portion, and the tube is connected to the support via the guide portion. When the external tube is connected to the pressure gauge support, it is located within the first inner cavity. The flow channel of the external tube connects to the first inner cavity and is connected to the pressure gauge via the first inner cavity, the first flow channel, and the first pair of interfaces. This allows the pressure gauge to detect the pressure of the external tube. The pressure gauge support provides a stable installation environment for the pressure gauge, fixing it in a specific position and ensuring accurate measurement of the pressure at that location. Simultaneously, the pressure gauge support protects the pressure gauge from the harsh downhole environment, ensuring the measurement performance of the pressure gauge.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a pressure gauge support assembly for connecting a pressure gauge; the pressure gauge support assembly includes:

[0005] The pressure gauge support has a first pair of interfaces, a first flow channel, and a first inner cavity; the first flow channel is disposed between the first pair of interfaces and the first inner cavity; the first pair of interfaces is used to connect to the pressure gauge; the first inner cavity is used to fit an external tube; the lower end of the pressure gauge support has a guide part, and the connection is made through the guide part.

[0006] When the outer tube is connected to the pressure gauge holder, the outer tube is located in the first inner cavity. The flow channel of the outer tube is connected to the first inner cavity and is connected to the pressure gauge through the first inner cavity, the first flow channel and the first interface, so that the pressure gauge can detect the pressure of the outer tube.

[0007] Optionally, the inner wall of the first inner cavity is provided with a first connecting part, and the first connecting part is connected to a second connecting part of the tube body located outside the first inner cavity;

[0008] The first flow channel is built into the pressure gauge support and is connected to the first inner cavity.

[0009] Optionally, the first connecting part and the second connecting part are detachable connection structures;

[0010] When the first connecting part is an internal thread, the second connecting part is an external thread.

[0011] Optionally, the first flow channel is disposed on the outside of the first inner cavity;

[0012] The connection point between the first flow channel and the first inner cavity is close to the first connection part and can communicate with the tube body located outside the first inner cavity.

[0013] Optionally, the inner wall of the first inner cavity is provided with a groove, which is arranged relative to the connection between the first flow channel and the first inner cavity. The groove is recessed by the inner wall of the first inner cavity. In this case, the first flow channel communicates with the first inner cavity through the groove.

[0014] Optionally, the pressure gauge is disposed on the top of the pressure gauge holder and is connected to the first pair of interfaces in the vertical direction.

[0015] Optionally, the pressure gauge support is provided with an airtightness detection hole, which is arranged relative to the connection between the pressure gauge and the pressure gauge support.

[0016] The airtightness detection hole exposes the connection between the pressure gauge and the pressure gauge support, and is used for docking with an external testing component, which is used to detect the airtightness of the connection between the pressure gauge and the pressure gauge support.

[0017] Optionally, when the airtightness detection hole is not connected to an external testing component, the airtightness detection hole is connected to a screw and sealed by the screw.

[0018] Optionally, the pressure gauge support assembly further includes a pressure gauge testing fixture, which passes through the first inner cavity and is positioned and connected to the pressure gauge support.

[0019] The pressure gauge testing fixture is provided with a second flow channel, which is connected to the first flow channel. The second flow channel is used for liquid or gas output from an external pipeline to pass through, so that the pressure gauge can be used to measure the pressure of the pressure gauge testing fixture under pressure.

[0020] Optionally, the pressure gauge support assembly further includes a sealing ring, which is arranged relative to the pressure gauge test fixture and seals the pressure gauge support and the pressure gauge test fixture.

[0021] The sealing rings are multiple, and the multiple sealing rings are arranged sequentially along the extension direction of the pressure gauge testing fixture.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] This invention provides a pressure gauge support assembly. The pressure gauge support has a first pair of interfaces, a first flow channel, and a first inner cavity. The first flow channel is located between the first pair of interfaces and the first inner cavity. The first pair of interfaces is used to connect to the pressure gauge. The first inner cavity is used to house an external tube. The lower end of the pressure gauge support has a guide portion, which is used for connection. When the external tube is connected to the pressure gauge support, the external tube is located within the first inner cavity. The flow channel of the external tube connects to the first inner cavity and is connected to the pressure gauge via the first inner cavity, the first flow channel, and the first pair of interfaces. This allows the pressure gauge to detect the pressure of the external tube. The pressure gauge support provides a stable installation environment for the pressure gauge, fixing it in a specific position and ensuring accurate measurement of the pressure at that location. Simultaneously, the pressure gauge support protects the pressure gauge from the harsh downhole environment, ensuring the measurement performance of the pressure gauge. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings. In the following description, the same reference numerals denote the same parts.

[0026] Figure 1 A schematic diagram showing the connection between the pressure gauge support assembly and the pressure gauge according to one embodiment of this application is illustrated.

[0027] Figure 2 A cross-sectional view showing the connection between the pressure gauge support assembly and the pressure gauge according to an embodiment of this application is shown.

[0028] Figure 3 A cross-sectional view of a pressure gauge support assembly in a test state according to an embodiment of this application is shown.

[0029] Figure 4 A schematic diagram of a pressure gauge holder assembly according to an embodiment of this application is shown.

[0030] Figure 5 A cross-sectional view of the pressure gauge holder of a pressure gauge holder assembly according to an embodiment of this application is shown.

[0031] Figure 6 A schematic diagram showing the airtightness detection hole of the pressure gauge holder of a pressure gauge holder assembly according to an embodiment of this application is exposed.

[0032] Figure Labels

[0033] 100. Pressure gauge support assembly;

[0034] 10. Pressure gauge support; 10a. Air tightness test hole; 11. First mating interface; 12. First flow channel; 13. First inner cavity; 131. First connecting part; 132. Groove; 14. Guide part;

[0035] 20. Sealing ring;

[0036] 30. Screws;

[0037] 40. Pressure gauge testing fixture; 40a. Second flow channel;

[0038] 200. Pressure gauge. Detailed Implementation

[0039] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0040] Please refer to the attached document. Figures 1-6 This application provides a pressure gauge support assembly 100, which is used to connect to a pressure gauge 200.

[0041] Please refer to the attached document. Figures 1-6In this embodiment, the pressure gauge support assembly 100 includes a pressure gauge support 10, which has a first interface 11, a first flow channel 12, and a first inner cavity 13. The first flow channel 12 is disposed between the first interface 11 and the first inner cavity 13. The first interface 11 is used to connect to the pressure gauge 200. The first inner cavity 13 is used to fit an external tube. The pressure gauge support 10 and the external tube are connected by a thread. Optionally, the first inner cavity 13 is connected to the external tube by a thread. The lower end of the pressure gauge support 10 is provided with... The pressure gauge has a guide section 14 and is connected via the guide section 14. When the outer tube is connected to the pressure gauge holder 10, the outer tube is located in the first inner cavity 13. The flow channel of the outer tube is connected to the first inner cavity 13, and the pressure gauge 200 is connected via the first inner cavity 13, the first flow channel 12, and the first connection interface 11. This allows the pressure gauge 200 to detect the pressure of the outer tube. The pressure gauge holder 10 provides a stable installation environment for the pressure gauge 200, fixing it in a specific position and ensuring that it can accurately measure the pressure at that specific location. At the same time, the pressure gauge holder 10 can protect the pressure gauge 200 from the harsh downhole environment, ensuring the measurement effect of the pressure gauge 200.

[0042] Please refer to the attached document. Figures 1-6 In this embodiment, the pressure gauge holder 10 is provided with a first pair of interfaces 11, a first flow channel 12, and a first inner cavity 13; the first flow channel 12 is disposed between the first pair of interfaces 11 and the first inner cavity 13, so that the first pair of interfaces 11, the first flow channel 12, and the first inner cavity 13 are connected in sequence. The first pair of interfaces 11 is used to connect with the pressure gauge 200, so that the pressure gauge 200 can be connected to the pressure gauge holder 10 through the first pair of interfaces 11; the first inner cavity 13 is used to fit an external tube, and the lower end of the pressure gauge holder 10 is provided with a guide part 14, and is connected through the guide part 14, so that the external tube can enter the first inner cavity 13 under the guidance.

[0043] When the external tube is connected to the pressure gauge holder 10, the external tube is located within the first inner cavity 13. The flow channel of the external tube connects to the first inner cavity 13 and is connected to the pressure gauge 200 via the first inner cavity 13, the first flow channel 12, and the first connection interface 11. This allows the pressure gauge 200 to detect the pressure of the external tube. The pressure gauge holder 10 provides a stable installation environment for the pressure gauge 200, fixing it in a specific position and ensuring accurate measurement of the pressure at that location. Simultaneously, the pressure gauge holder 10 protects the pressure gauge 200 from the harsh downhole environment, guaranteeing the measurement performance of the pressure gauge 200.

[0044] Please refer to the attached document. Figure 3In this embodiment, the inner wall of the first inner cavity 13 is provided with a first connecting portion 131, which is threadedly connected to a second connecting portion of the tube body located outside the first inner cavity 13. This facilitates the fixing of the outer tube body to the inner wall of the first inner cavity 13, ensuring the connection stability of the outer tube body relative to the first inner cavity 13. The first flow channel 12 is built into the pressure gauge support 10 and communicates with the first inner cavity 13, facilitating the flow of gas or liquid from the first inner cavity 13 to the first flow channel 12. Optionally, the second connecting portion 131 is internally threaded, and the second connecting portion of the outer tube body is externally threaded.

[0045] Please refer to the attached document. Figure 3 In this embodiment, the first connecting part 131 and the second connecting part are detachable connection structures, so that the second connecting part can be connected to or disconnected from the first connecting part 131, thereby improving the ease of loading and unloading of the external pipe body; when the first connecting part 131 is internally threaded, the second connecting part is externally threaded, so that the second connecting part can be detachably connected to the first connecting part 131 by means of threaded connection.

[0046] The pressure gauge support 10 is provided with a stop step, which is located on the inner side wall of the first inner cavity 13. The stop step is used to abut against the pressure gauge testing fixture so as to limit the movement of the pressure gauge testing fixture relative to the pressure gauge support 10.

[0047] Please refer to the attached document. Figures 2-5 In this embodiment, the first flow channel 12 is disposed on the outside of the first inner cavity 13; the connection between the first flow channel 12 and the first inner cavity 13 is close to the first connecting part 131 and can communicate with the tube body located outside the first inner cavity 13, so that the external tube body can be connected to the first flow channel 12 after being connected relative to the first connecting part 131, thereby facilitating the flow of gas output from the external tube body to the first flow channel 12.

[0048] Please refer to the attached document. Figures 2-5 In this embodiment of the application, the inner wall of the first inner cavity 13 is provided with a groove 132. The groove 132 is arranged relative to the connection between the first flow channel 12 and the first inner cavity 13. The groove 132 is recessed by the inner wall of the first inner cavity 13. At this time, the first flow channel 12 is connected to the first inner cavity 13 through the groove 132.

[0049] Please refer to the attached document. Figure 3 In this embodiment, the pressure gauge 200 is disposed on the top of the pressure gauge holder 10 and screwed to the first pair of interfaces 11 in the vertical direction, so that the pressure gauge 200 can directly connect to the first pair of interfaces 11 from top to bottom, thereby improving the connection convenience of the pressure gauge 200 relative to the pressure gauge holder 10.

[0050] Please refer to the attached document. Figure 1 and 6In this embodiment, the pressure gauge support 10 is provided with an airtightness detection hole 10a, which is arranged relative to the connection between the pressure gauge 200 and the pressure gauge support 10. The airtightness detection hole 10a exposes the connection between the pressure gauge 200 and the pressure gauge support 10 and is used for docking with an external testing component to facilitate subsequent testing operations. This external testing component is used to detect the airtightness of the connection between the pressure gauge 200 and the pressure gauge support 10, thereby detecting the airtightness of the connection between the pressure gauge 200 and the pressure gauge support 10, preventing leakage between the pressure gauge 200 and the pressure gauge support 10 during the testing process, and ensuring the testing accuracy of the pressure gauge 200.

[0051] Please refer to the attached document. Figure 1 and 6 In this embodiment, when the airtightness detection hole 10a is not connected to an external testing component, the airtightness detection hole 10a is connected to a screw 30 and is sealed by the screw 30 to seal the airtightness detection hole 10a, thereby preventing air leakage from the airtightness detection hole 10a during the testing process of the pressure gauge 200 and ensuring the testing stability of the pressure gauge 200.

[0052] Please refer to the attached document. Figures 1-2 In this embodiment, the pressure gauge support assembly 100 further includes a pressure gauge testing fixture 40, which passes through the first inner cavity 13 and is positioned and connected to the pressure gauge support 10. The pressure gauge testing fixture 40 is provided with a second flow channel 40a, which communicates with the first flow channel 12. The second flow channel 40a is used for liquid or gas output from an external pipeline to pass through, so that the pressure gauge 200 can measure the pressure of the pressure gauge testing fixture 40 under pressure, thereby realizing self-testing of the pressure gauge 200, ensuring that the pressure gauge 200 is in a normal state, and avoiding deviations in the pressure gauge 200's detection of the external pipe. This enables the pressure gauge support assembly 100 to perform air pressure detection of the external pipe, airtightness detection between the pressure gauge 200 and the pressure gauge support 100, and self-testing of the pressure gauge 200.

[0053] The pressure gauge holder 10 is shorter in length, making it easier to control and operate at the wellhead during the process of lowering or retrieving it into the oil and gas well. This reduces the operational difficulty and risks caused by an excessively long pressure gauge holder 10, lowers the labor intensity of operators, and improves operational efficiency.

[0054] The downhole space and well structure are quite complex, with various bends and narrowing sections. When the shorter pressure gauge support 10 moves downhole, it is less likely to encounter irregularities or obstacles in the well wall, allowing it to pass through the well more smoothly, reducing the chances of obstruction, stuck drill bits, and other accidents, and ensuring the smooth progress of operations.

[0055] The pressure gauge holder 10 itself will have a certain impact on downhole pressure measurement. A shorter pressure gauge holder 10 means a shorter pressure transmission path, and the pressure loss and interference during the transmission process are relatively small, which enables the pressure gauge 200 to sense the real pressure changes downhole more quickly and accurately, and improve the accuracy and reliability of the measurement data.

[0056] In oil and gas wells, fluid flow can interfere with pressure measurements. The fluid flow around a shorter pressure gauge holder 10 is relatively simple, resulting in less impact and disturbance from the fluid on the pressure gauge 200 inside the holder 10. This is beneficial for the pressure gauge 200 to measure pressure stably and reduces measurement errors caused by fluid flow.

[0057] The shortened length of the pressure gauge holder 10 reduces the amount of raw materials required, thereby lowering material costs during manufacturing. This translates to substantial cost savings for oil and gas field development projects that rely heavily on the pressure gauge holder 10.

[0058] Using a shorter pressure gauge holder 10 can shorten the time of a single pressure measurement operation. In the production monitoring and maintenance of oil and gas wells, pressure measurements can be performed more frequently, and downhole pressure data can be obtained in a timely manner. This provides a more timely and accurate basis for oil and gas well production decisions, thereby improving the overall development efficiency and economic benefits of oil and gas fields.

[0059] The downhole pressure gauge holder 10 typically has a channel or interface that communicates with the downhole pressure environment. When the downhole pressure changes, the pressure is transmitted through the channel or interface to the pressure gauge 200 installed inside the pressure gauge holder 10. For example, during oil and gas well production, the oil and gas in the formation exert pressure on the fluid inside the wellbore, and this pressure is transmitted along the wellbore. The pressure gauge holder 10 can accurately transmit the pressure inside the wellbore to the pressure gauge 200, allowing the pressure gauge 200 to sense the downhole pressure value in real time.

[0060] Please refer to the attached document. Figures 2-5 In this embodiment, the pressure gauge support assembly 100 further includes a sealing ring 20. The sealing ring 20 is arranged relative to the pressure gauge testing fixture 40 and seals the pressure gauge support 10 and the pressure gauge testing fixture 40, ensuring the sealing performance between the pressure gauge support 10 and the pressure gauge testing fixture 40. There are multiple sealing rings 20, which are arranged sequentially along the extension direction of the pressure gauge testing fixture 40. By arranging multiple sealing rings 20, the sealing performance between the pressure gauge support 10 and the pressure gauge testing fixture 40 is further increased, avoiding the sealing effect between the pressure gauge support 10 and the external tube body if one sealing ring 20 is damaged.

[0061] Compared with the prior art, the beneficial effects of this utility model are:

[0062] This utility model provides a pressure gauge support assembly 100. The pressure gauge support 10 has a first interface 11, a first flow channel 12, and a first inner cavity 13. The first flow channel 12 is disposed between the first interface 11 and the first inner cavity 13. The first interface 11 is used to connect to the pressure gauge 200. The first inner cavity 13 is used to fit an external tube. The lower end of the pressure gauge support 10 has a guide part 14, and the tube is connected to the pressure gauge 200 through the guide part 14. When the external tube is connected to the pressure gauge support 10, the external tube is located in the first inner cavity 13. The flow channel of the external tube is connected to the first inner cavity 13, and the pressure gauge 200 is connected through the first inner cavity 13, the first flow channel 12, and the first interface 11, so that the pressure gauge 200 can detect the pressure of the external tube. The pressure gauge support 10 provides a stable installation environment for the pressure gauge 200, fixing the pressure gauge 200 in a specific position and ensuring that it can accurately measure the pressure at that specific position. Meanwhile, the pressure gauge holder 10 can protect the pressure gauge 200 from the harsh downhole environment, ensuring the measurement effect of the pressure gauge 200.

[0063] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0064] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0065] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A pressure gauge support assembly, characterized in that, Used for docking with pressure gauges; The pressure gauge support assembly includes: The pressure gauge support has a first pair of interfaces, a first flow channel, and a first inner cavity; the first flow channel is disposed between the first pair of interfaces and the first inner cavity; The first pair of interfaces is used to connect to the pressure gauge; the first inner cavity is used to fit the outer tube, and the lower end of the pressure gauge support is provided with a guide part, which is connected to the pressure gauge through the guide part. When the outer tube is connected to the pressure gauge holder, the outer tube is located in the first inner cavity. The flow channel of the outer tube is connected to the first inner cavity and is connected to the pressure gauge through the first inner cavity, the first flow channel and the first interface, so that the pressure gauge can detect the pressure of the outer tube.

2. The pressure gauge support assembly according to claim 1, characterized in that, The inner wall of the first inner cavity is provided with a first connecting part, which is connected to a second connecting part of the tube body located outside the first inner cavity; The first flow channel is built into the pressure gauge support and is connected to the first inner cavity.

3. The pressure gauge support assembly according to claim 2, characterized in that, The first connecting part and the second connecting part are detachable connection structures; When the first connecting part is an internal thread, the second connecting part is an external thread.

4. The pressure gauge support assembly according to claim 2, characterized in that, The first flow channel is located on the outside of the first inner cavity; The connection point between the first flow channel and the first inner cavity is close to the first connection part and can communicate with the tube body located outside the first inner cavity.

5. The pressure gauge support assembly according to claim 4, characterized in that, The inner wall of the first inner cavity is provided with a groove, which is arranged relative to the connection between the first flow channel and the first inner cavity. The groove is recessed by the inner wall of the first inner cavity. At this time, the first flow channel communicates with the first inner cavity through the groove.

6. The pressure gauge support assembly according to claim 1, characterized in that, The pressure gauge is mounted on the top of the pressure gauge holder and is connected to the first pair of interfaces in the vertical direction.

7. The pressure gauge support assembly according to claim 6, characterized in that, The pressure gauge support is provided with an airtightness detection hole, which is arranged relative to the connection between the pressure gauge and the pressure gauge support. The airtightness detection hole exposes the connection between the pressure gauge and the pressure gauge support, and is used for docking with an external testing component, which is used to detect the airtightness of the connection between the pressure gauge and the pressure gauge support.

8. The pressure gauge support assembly according to claim 7, characterized in that, When the airtightness testing hole is not connected to an external testing component, the airtightness testing hole is connected to a screw and is sealed by the screw.

9. The pressure gauge support assembly according to claim 1, characterized in that, The pressure gauge support assembly also includes a pressure gauge testing fixture, which passes through the first inner cavity and is positioned and connected to the pressure gauge support. The pressure gauge testing fixture is provided with a second flow channel, which is connected to the first flow channel. The second flow channel is used for liquid or gas output from an external pipeline to pass through, so that the pressure gauge can be used to measure the pressure of the pressure gauge testing fixture under pressure.

10. The pressure gauge support assembly according to claim 9, characterized in that, The pressure gauge support assembly also includes a sealing ring, which is arranged relative to the pressure gauge test fixture and seals the pressure gauge support and the pressure gauge test fixture. The sealing rings are multiple, and the multiple sealing rings are arranged sequentially along the extension direction of the pressure gauge testing fixture.

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