A pressure gauge fixing device for oil well testing

Abstract

The utility model belongs to the field of oil and natural gas exploitation, especially relate to a pressure gauge fixing device for oil well gas testing and gas production, including control valve, the control valve top end is connected with pressure indicating meter, the control valve bottom end fixed sleeve is connected with fixed pipe, the fixed pipe below is provided with the connecting pipe, the control valve includes sealing mechanism and limit mechanism, the utility model discloses in the use, the sealing plate is slipped into the connecting pipe top end sealing groove, makes rubber pad to be extruded and forms the seal, prevents gas leakage, through the nut disc and bolt seat connects fixed pipe with connecting pipe, and the convenient installation and dismounting can provide reliable fastening force, guarantees the device in the oil well gas testing and gas production process and does not loosen because of pressure change or vibration, finally through the bolt limit two pipe relative rotation, further strengthened the stability of device, avoids the loose or sealing failure of connecting part because of rotation, ensures the accuracy and stability of pressure measurement.

Description

Technical Field

[0001] This utility model relates to the field of oil and gas extraction technology, and in particular to a pressure gauge fixing device for oil well testing and gas production. Background Technology

[0002] A pressure gauge used for gas testing and production in oil wells is a device that measures the gas pressure inside the well. It can display the gas pressure value inside the well in real time. By observing the pressure gauge reading, operators can understand the pressure changes inside the well, so as to detect abnormalities in time and provide early warnings to operators, enabling them to take timely measures, such as adjusting the gas production rate and closing relevant valves, to prevent accidents and ensure the safety of personnel and equipment.

[0003] Traditional pressure gauge fixing devices have many drawbacks. On the one hand, the poor sealing of the connection points allows high-pressure gas in the oil well to easily leak from the connection, which not only leads to inaccurate pressure measurement data and affects the judgment of the oil well's operating conditions, but may also cause safety hazards. On the other hand, insufficient fixing stability allows the pressure gauge to loosen, shift, or even fall off, causing deviations in pressure readings. Frequent failures also increase maintenance costs and downtime, reduce operational efficiency, and are inconvenient to install and disassemble, with cumbersome operating procedures that require a lot of manpower and time. Based on this, a pressure gauge fixing device for oil well testing and gas production is proposed for improvement. Utility Model Content

[0004] In order to overcome the defects of the prior art mentioned above, the inventors conducted in-depth research and, after a great deal of creative work, completed this utility model.

[0005] Specifically, the technical problem to be solved by this utility model is to provide a pressure gauge fixing device for oil well gas testing and production, so as to solve the current technical problems of poor sealing, insufficient stability and inconvenience in installation and disassembly.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0007] A pressure gauge fixing device for oil well gas testing and production includes a control valve, a pressure indicator is threadedly connected to the top of the control valve, a fixing pipe is fixedly sleeved to the bottom of the control valve, a connecting pipe is provided below the fixing pipe, and the control valve includes a sealing mechanism and a limiting mechanism.

[0008] A fixing plate is fixedly sleeved on the outer surface of the fixing tube. A sliding groove is opened at the bottom end of the fixing plate. Several sliding balls are slidably connected inside the sliding groove. A connecting rod is fixedly connected to the bottom end of the several sliding balls. The same nut plate is fixedly connected to the bottom end of the connecting rod. A bolt seat is fixedly sleeved on the outer surface of the connecting tube. The nut plate is threaded to the outer surface of the bolt seat.

[0009] A sealing plate is fixedly connected to the bottom end of the fixed pipe, and a sealing groove is opened at the top end of the connecting pipe. A rubber gasket is fixedly sleeved on the inner wall of the sealing groove, and the sealing plate is slidably connected to the inner wall of the sealing groove.

[0010] As an improved technical solution, an upper pin seat is fixedly connected to one side of the fixing plate, and a lower pin seat is provided below the upper pin seat. One side of the lower pin seat is fixedly connected to the outer surface of the connecting pipe, and the upper pin seat and the lower pin seat are inserted with the same pin.

[0011] As an improved technical solution, the top of the control valve is fixedly connected to a mounting frame, a knob is provided on one side of the mounting frame, a bidirectional lead screw is fixedly sleeved inside the knob, and both ends of the bidirectional lead screw are rotatably connected to the inner wall of the mounting frame.

[0012] As an improved technical solution, the outer surfaces of both ends of the bidirectional lead screw are threaded with a first moving block, and a clamping plate is fixedly connected to one end of the first moving block. The opposite side of the clamping plate is in contact with the surface of the pressure indicator.

[0013] As an improved technical solution, a limiting plate is fixedly sleeved on the outer surface of the pressure gauge, the bottom end of the limiting plate is in contact with the top end of the control valve, and the top end of the limiting plate is in contact with the bottom end of the clamping plate.

[0014] As an improved technical solution, a second movable block is fixedly connected to one end of the clamping plate, the second movable block is slidably connected to the outer surface of the fixing rod, and both ends of the fixing rod are fixedly connected to the inner wall of the mounting frame.

[0015] After adopting the above technical solution, the beneficial effects of this utility model are:

[0016] 1. In use, the sealing plate is slid into the sealing groove at the top of the connecting pipe, causing the rubber gasket to be compressed to form a seal and prevent gas leakage. The fixing pipe and the connecting pipe are connected by the nut plate and the bolt seat, which is convenient for installation and disassembly and can provide reliable fastening force to ensure that the device will not loosen due to pressure changes or vibrations during the gas testing and production process of the oil well. Finally, the relative rotation of the two pipes is restricted by the pin, which further enhances the stability of the device and avoids loosening of the connection or failure of the seal due to rotation, thus ensuring the accuracy and stability of pressure measurement.

[0017] 2. In the process of using this utility model, the pressure indicator is initially connected to the threaded interface at the bottom of the pressure gauge and the top of the control valve. The bottom of the limiting plate contacts the top of the control valve to achieve initial positioning. The pressure indicator is clamped between the clamping plate and the limiting plate by the limiting mechanism to achieve stable installation. This not only makes the pressure indicator installed stably, restricts its vertical and horizontal movement, reduces deformation or loosening, improves the accuracy of pressure measurement, and enhances the stability of the device, but also significantly shortens the installation and disassembly time and improves work efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a side view sectional diagram of the fixed pipe and connecting pipe in this utility model.

[0021] Figure 3 This is a top view of the structure of this utility model.

[0022] Figure 4 for Figure 3 A magnified structural diagram of point A in the middle.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Control valve; 2. Pressure gauge; 21. Limiting plate; 3. Fixing pipe; 31. Sealing plate; 4. Connecting pipe; 41. Sealing groove; 42. Rubber gasket; 5. Sealing mechanism; 51. Fixing plate; 52. Sliding groove; 53. Sliding ball; 54. Connecting rod; 55. Nut disc; 56. Bolt seat; 57. Upper pin seat; 58. Lower pin seat; 59. Pin; 6. Limiting mechanism; 61. Mounting frame; 62. Knob; 63. Double-acting screw; 64. First moving block; 65. Clamping plate; 66. Second moving block; 67. Fixing rod. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0027] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three options. Taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.

[0028] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0029] like Figure 1 and Figure 4 As shown in the figure, this embodiment provides a pressure gauge fixing device for oil well gas testing and production, including a control valve 1, a pressure indicator 2 threadedly connected to the top of the control valve 1, a fixing pipe 3 fixedly sleeved to the bottom of the control valve 1, a connecting pipe 4 provided below the fixing pipe 3, and the control valve 1 including a sealing mechanism 5 and a limiting mechanism 6.

[0030] A fixing plate 51 is fixedly sleeved on the outer surface of the fixing pipe 3. A sliding groove 52 is opened at the bottom end of the fixing plate 51. Several sliding balls 53 are slidably connected inside the sliding groove 52. A connecting rod 54 is fixedly connected to the bottom end of the several sliding balls 53. The same nut disc 55 is fixedly connected to the bottom end of the connecting rod 54. A bolt seat 56 is fixedly sleeved on the outer surface of the connecting pipe 4. The nut disc 55 is threadedly connected to the outer surface of the bolt seat 56.

[0031] A sealing plate 31 is fixedly connected to the bottom end of the fixed pipe 3, and a sealing groove 41 is opened at the top end of the connecting pipe 4. A rubber gasket 42 is fixedly sleeved on the inner wall of the sealing groove 41, and the sealing plate 31 is slidably connected to the inner wall of the sealing groove 41.

[0032] An upper pin seat 57 is fixedly connected to one side of the fixing plate 51, and a lower pin seat 58 is provided below the upper pin seat 57. One side of the lower pin seat 58 is fixedly connected to the outer surface of the connecting pipe 4, and the upper pin seat 57 and the lower pin seat 58 are inserted with the same pin 59.

[0033] Specifically, the ball 53 can move flexibly in the sliding groove 52 inside the fixed plate 51. During installation, first, accurately align the sealing plate 31 with the sealing groove 41 at the top of the connecting pipe 4, and then slowly insert the fixed pipe 3, allowing the sealing plate 31 to slide in the sealing groove 41 to the appropriate position. At this time, the rubber pad 42 on the inner wall of the sealing groove 41 will be squeezed, thereby forming a seal and effectively preventing gas from leaking from the connection.

[0034] The ball 53 can move flexibly in the sliding groove 52 in the fixed plate 51. Then, the nut disc 55 is aligned with the bolt seat 56 on the outer surface of the connecting pipe 4. Then, the nut disc 55 is rotated so that it moves downward along the thread on the outer surface of the bolt seat 56 until the fixed pipe 3 and the connecting pipe 4 are tightly connected. This design facilitates installation and disassembly and can provide reliable fastening force to ensure that the device will not loosen due to pressure changes or vibration during the gas testing and production process of the oil well.

[0035] Finally, the pin 59 is inserted into the holes of the upper pin seat 57 and the lower pin seat 58 to restrict the relative rotation between the fixed tube 3 and the connecting tube 4, thereby further enhancing the stability of the device, preventing the connection from loosening or the seal from failing due to rotation, and ensuring the accuracy and stability of pressure measurement.

[0036] In a further embodiment, a mounting frame 61 is fixedly connected to the top of the control valve 1. A knob 62 is provided on one side of the mounting frame 61. A bidirectional lead screw 63 is fixedly sleeved inside the knob 62. Both ends of the bidirectional lead screw 63 are rotatably connected to the inner wall of the mounting frame 61. A first moving block 64 is threadedly connected to the outer surface of both ends of the bidirectional lead screw 63. A clamping plate 65 is fixedly connected to one end of the first moving block 64. The opposite side of the clamping plate 65 is in contact with the surface of the pressure gauge 2. A limiting plate 21 is fixedly sleeved on the outer surface of the pressure gauge 2. The bottom end of the limiting plate 21 is in contact with the top of the control valve 1. The top end of the limiting plate 21 is in contact with the bottom end of the clamping plate 65. A second moving block 66 is fixedly connected to one end of the clamping plate 65. The second moving block 66 is slidably connected to the outer surface of the fixed rod 67. Both ends of the fixed rod 67 are fixedly connected to the inner wall of the mounting frame 61.

[0037] Specifically, firstly, the pressure gauge 2 is initially connected to the threaded interface at the top of the control valve 1 through the thread at its bottom end. At this time, the bottom end of the limit plate 21 is in contact with the top end of the control valve 1, which plays a preliminary positioning role for the pressure gauge 2.

[0038] Then, turn knob 62, which drives the bidirectional lead screw 63 to rotate. When the bidirectional lead screw 63 rotates, the two first moving blocks 64 move in opposite directions on the bidirectional lead screw 63. The clamping plate 65 moves with the first moving blocks 64 until the opposite side of the clamping plate 65 contacts the surface of the pressure gauge 2, clamping the pressure gauge 2 between the clamping plate 65 and the limiting plate 21, thus achieving a stable installation of the pressure gauge 2. The second moving block 66 at one end of the clamping plate 65 slides on the outer surface of the fixed rod 67, playing a guiding and limiting role, ensuring the stability and accuracy of the movement of the clamping plate 65. This design can ensure the stable installation of the pressure gauge 2, not only restricting the movement of the gauge body in the vertical direction, but also preventing its rotation in the horizontal direction, reducing the possibility of deformation or loosening due to uneven force, which is conducive to improving the accuracy of pressure measurement and further enhancing the stability of the entire device. On the other hand, it greatly shortens the installation and disassembly time and improves work efficiency.

[0039] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, it should be understood that after reading the technical description of this utility model, those skilled in the art can make various alterations, modifications, and / or variations to this utility model, and all such equivalent forms also fall within the scope of protection defined by the appended claims.

Claims

1. A pressure gauge fixing device for gas testing and production in oil wells, comprising a control valve (1), characterized in that: The control valve (1) is threaded with a pressure gauge (2) at the top and a fixed tube (3) is fixedly sleeved at the bottom. A connecting tube (4) is provided below the fixed tube (3). The control valve (1) includes a sealing mechanism (5) and a limiting mechanism (6). A fixing plate (51) is fixedly sleeved on the outer surface of the fixing tube (3). A sliding groove (52) is opened at the bottom end of the fixing plate (51). A plurality of sliding balls (53) are slidably connected inside the sliding groove (52). A connecting rod (54) is fixedly connected at the bottom end of the plurality of sliding balls (53). A nut disc (55) is fixedly connected at the bottom end of the connecting rod (54). A bolt seat (56) is fixedly sleeved on the outer surface of the connecting tube (4). The nut disc (55) is threadedly connected to the outer surface of the bolt seat (56). The bottom end of the fixed tube (3) is fixedly connected to a sealing plate (31), and the top end of the connecting tube (4) is provided with a sealing groove (41). A rubber pad (42) is fixedly sleeved on the inner wall of the sealing groove (41), and the sealing plate (31) is slidably connected to the inner wall of the sealing groove (41).

2. The pressure gauge fixing device for oil well gas testing and production according to claim 1, characterized in that: An upper pin seat (57) is fixedly connected to one side of the fixing plate (51), and a lower pin seat (58) is provided below the upper pin seat (57). One side of the lower pin seat (58) is fixedly connected to the outer surface of the connecting pipe (4), and the upper pin seat (57) and the lower pin seat (58) are inserted with the same pin (59).

3. The pressure gauge fixing device for oil well gas testing and production according to claim 1, characterized in that: The control valve (1) is fixedly connected to a mounting frame (61) at its top. A knob (62) is provided on one side of the mounting frame (61). A bidirectional screw (63) is fixedly sleeved inside the knob (62). Both ends of the bidirectional screw (63) are rotatably connected to the inner wall of the mounting frame (61).

4. A pressure gauge fixing device for gas testing and production in oil wells according to claim 3, characterized in that: The outer surfaces of both ends of the bidirectional lead screw (63) are threaded with a first moving block (64). One end of the first moving block (64) is fixedly connected with a clamping plate (65). The opposite side of the clamping plate (65) is in contact with the surface of the pressure gauge (2).

5. A pressure gauge fixing device for gas testing and production in oil wells according to claim 4, characterized in that: The pressure indicator (2) is fixedly fitted with a limiting plate (21) on its outer surface. The bottom end of the limiting plate (21) is in contact with the top end of the control valve (1), and the top end of the limiting plate (21) is in contact with the bottom end of the clamping plate (65).

6. A pressure gauge fixing device for gas testing and production in oil wells according to claim 4, characterized in that: One end of the clamping plate (65) is fixedly connected to a second moving block (66), which is slidably connected to the outer surface of the fixing rod (67). Both ends of the fixing rod (67) are fixedly connected to the inner wall of the mounting frame (61).

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