Detection and transmission device for working fluid level of oil well

Abstract

The utility model discloses an oil well working fluid level detection and transmission device which comprises a control box and a high-temperature automatic liquid level instrument, a gas outlet connector is arranged on one side of the control box, a gas conveying pipe is arranged at one end of the high-temperature automatic liquid level instrument, a connecting mechanism is arranged at one end of the gas conveying pipe, and the connecting mechanism is connected with the gas outlet connector. The connecting mechanism comprises an automatic connecting assembly located with the air outlet connector, the automatic connecting assembly comprises a connecting sleeve, the connecting sleeve is arranged at one end of the air conveying pipe, a hemispheroid locating pin is movably arranged in the groove, a spring is arranged on one side in the groove, one end of the spring is connected with the hemispheroid locating pin, and the other end of the spring is connected with the air outlet connector. The hemispherical positioning pin is clamped in the annular positioning groove; according to the air delivery pipe assembly, the air delivery pipe and the air outlet connector can be positioned and assembled, the assembly operation is convenient and fast, the connecting sleeve can be automatically locked and fixed, and the situation that the connecting sleeve is loosened due to the fact that the air pressure is too large is effectively prevented.

Description

Technical Field

[0001] This utility model relates to the field of oil well fluid level detection technology, and in particular to an oil well dynamic fluid level detection and transmission device. Background Technology

[0002] In oilfield production, testing the dynamic fluid level of oil wells is a crucial task. It requires measuring the fluid level depth in the annulus at regular time intervals. The dynamic fluid level tester utilizes the principle of infrasonic echo logging, combined with special filtering technology and a low-frequency fuzzy automatic recognition algorithm to automatically locate the fluid surface wave and collar wave positions, thus achieving fluid level depth testing. By releasing a small amount of casing gas instantaneously, an expansion shock wave is generated at the wellhead in the annular space. The infrasonic component of the sound wave propagates downhole along the annulus, and the reflected sound waves from the collar, acoustic markers, and gas-liquid interface act on a micro-sound transducer, converting them into an electrical signal. After amplification, filtering, and A / D conversion, the electrical signal presents a recognizable fluid level curve.

[0003] When using the current oil well dynamic fluid level tester, the gas delivery pipe on its high-temperature automatic fluid level gauge is connected to the control box. During high-pressure gas delivery, the gas delivery pipe is prone to loosening, affecting the accuracy of fluid level detection in the oil well. At the same time, the gas delivery pipe connection operation is inconvenient and the assembly is time-consuming and labor-intensive. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an oil well dynamic fluid level detection and transmission device, which solves the problem that when the gas supply pipe on the high-temperature automatic fluid level instrument is connected to the control box in the current oil well dynamic fluid level tester, the gas supply pipe is prone to loosening during high-pressure gas transportation, which affects the accuracy of fluid level detection in the oil well. At the same time, the gas supply pipe connection operation is inconvenient and the assembly is time-consuming and labor-intensive.

[0005] To solve the above-mentioned technical problems, this utility model provides an oil well dynamic fluid level detection and transmission device, including a control box and a high-temperature automatic fluid level gauge. An air outlet connector is provided on one side of the control box, and an air supply pipe is provided at one end of the high-temperature automatic fluid level gauge. A connecting mechanism is provided at one end of the air supply pipe, and the connecting mechanism is connected to the air outlet connector. The connecting mechanism includes an automatic connection component for positioning the air outlet connector. The automatic connection component includes a connecting sleeve, which is located at one end of the air supply pipe. A groove is provided inside the connecting sleeve, and a hemispherical positioning pin is movably disposed within the groove. A spring is provided on one side of the groove, and one end of the spring is connected to the hemispherical positioning pin. The hemispherical positioning pin is engaged in an annular positioning groove, which is located on the outer surface of the air outlet connector. Multiple sets of air outlet locking components are also provided on the outer surface of the air outlet connector.

[0006] Preferably, a threaded hole is provided in the groove, and a positioning bolt is provided in the threaded hole, with one end of the positioning bolt abutting against the hemispherical positioning pin.

[0007] By setting the positioning bolts and tightening them, the hemispherical positioning pin is locked in place.

[0008] Preferably, the air outlet locking assembly includes a baffle plate protruding from it, the baffle plate being movably disposed within a groove, and the groove being disposed on one side of the inner wall of the air outlet connector.

[0009] By setting up baffles, the baffles can move within the chute during the high-pressure airflow delivery process.

[0010] Preferably, a crossbar is provided on one side surface of the baffle plate, the crossbar is movably disposed in the air outlet connector, one end of the crossbar extends into the receiving groove, the receiving groove is disposed on the outer surface of the air outlet connector, and when the baffle plate moves, it can drive the crossbar to move in the receiving groove.

[0011] Preferably, an active wedge is provided at one end of the crossbar, the active wedge is in contact with the driven wedge, the driven wedge is provided at one end of the top rod, and an auxiliary fixing pin is provided at the other end of the top rod.

[0012] By setting up active and driven wedges, the push rod can be moved, which in turn drives the auxiliary fixing pin to move.

[0013] Preferably, one end of the auxiliary fixing pin is engaged in the fixing groove, which is located on one side of the inner wall of the connecting sleeve, and can engage and fix the connecting sleeve to prevent it from coming loose.

[0014] Preferably, the top rod is movably mounted on the support plate, and the support plate is mounted inside the storage groove.

[0015] The support plate can guide the movement of the push rod.

[0016] Preferably, the high-temperature automatic liquid level gauge is also equipped with a data transmission line, which is connected to the control box and can transmit the data collected by the high-temperature automatic liquid level gauge to the control box.

[0017] The beneficial effects of this utility model are:

[0018] 1. This utility model can position and assemble the gas supply pipe and the gas outlet connector, making the assembly operation convenient and greatly improving the efficiency of its connection with the control box.

[0019] 2. This utility model can automatically lock and fix the connecting sleeve during the high-pressure airflow transmission process, effectively preventing the connecting sleeve from loosening due to excessive air pressure. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a half-sectional structural diagram of the connecting mechanism in this utility model;

[0022] Figure 3 for Figure 2 A partially enlarged structural diagram of part A in the diagram;

[0023] Figure 4 for Figure 2 A partially enlarged structural diagram of part B in the diagram;

[0024] In the diagram: 1. Connecting mechanism, 2. Gas supply pipe, 3. High-temperature automatic liquid level gauge, 4. Data transmission line, 5. Gas outlet connector, 6. Control box, 7. Wireless signal transmitter, 11. Connecting sleeve, 12. Groove, 13. Positioning bolt, 14. Spring, 15. Hemispherical positioning pin, 16. Annular positioning groove, 51. Baffle plate, 52. Slide groove, 53. Variable diameter cover, 54. Crossbar, 55. Active wedge, 56. Driven wedge, 57. Receiving groove, 58. Top rod, 59. Fixing groove, 60. Fixing pin, 61. Support plate. 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 of the present utility model. All directional indicators (such as up, down, left, right, front, back, etc.) in the present utility model are only used to explain the relative positional relationship and movement of each component in a certain posture (as shown in the accompanying drawings). If the specific posture changes, the directional indicator will also change accordingly.

[0026] Please see Figures 1-3 An oil well dynamic fluid level detection and transmission device includes a control box 6 and a high-temperature automatic fluid level gauge 3. An air outlet connector 5 is provided on one side of the control box 6, and an air supply pipe 2 is provided at one end of the high-temperature automatic fluid level gauge 3. A connecting mechanism 1 is provided at one end of the air supply pipe 2, and the connecting mechanism 1 is connected to the air outlet connector 5. The connecting mechanism 1 includes an automatic connection component positioned with the air outlet connector 5. The automatic connection component includes a connecting sleeve 11, which is located at one end of the air supply pipe 2. A groove 12 is provided inside the connecting sleeve 11, and a hemispherical positioning pin 15 is movably disposed within the groove 12. A spring 14 is provided on one side of the groove 12, and one end of the spring 14 is connected to the hemispherical positioning pin 15. The hemispherical positioning pin 15 is engaged in an annular positioning groove 16, which is located on the outer surface of the air outlet connector 5.

[0027] When connecting the gas supply pipe 2 and the gas outlet connector 5, align the connecting sleeve 11 on the gas supply pipe 2 with the gas outlet connector 5, put the connecting sleeve 11 on the gas outlet connector 5, push the connecting sleeve 11, at this time the hemispherical positioning pin 15 moves in the groove 12 and compresses the spring 14. When the connecting sleeve 11 and the gas outlet connector 5 are fully fitted, the spring 14 will insert the hemispherical positioning pin into the annular positioning groove 16, thereby completing the positioning connection between the gas supply pipe 2 and the gas outlet connector 5.

[0028] Furthermore, a threaded hole is provided in the groove 12, and a positioning bolt 13 is provided in the threaded hole. One end of the positioning bolt 13 abuts against the hemispherical positioning pin 15. After the hemispherical positioning pin 15 is engaged, the positioning bolt 13 is rotated and abuts against the end of the hemispherical positioning pin 15. By tightening the positioning bolt 13, the hemispherical positioning pin 15 is locked.

[0029] As a specific embodiment of this application, see [reference]. Figure 3 and Figure 4 The outer surface of the air outlet connector 5 is also provided with multiple sets of air outlet locking components. Each air outlet locking component includes a baffle plate 51 protruding from it. The baffle plate 51 is movably disposed within a slide groove 52, which is located on one side of the inner wall of the air outlet connector 5. During high-pressure airflow transmission, the baffle plate 51 can move within the slide groove 52. A crossbar 54 is provided on one side surface of the baffle plate 51, movably disposed within the air outlet connector 5. One end of the crossbar 54 extends into a receiving groove 57, which is located on the outer surface of the air outlet connector 5. The baffle plate 51... When moving, it can drive the crossbar 54 to move within the storage groove 57. One end of the crossbar 54 is provided with an active wedge 55, which is in contact with the driven wedge 56. The driven wedge 56 is provided at one end of the top rod 58, and the other end of the top rod 58 is provided with an auxiliary fixing pin 60, which can push the top rod 58 to move and drive the auxiliary fixing pin 60 to move. One end of the auxiliary fixing pin 60 is engaged in the fixing groove 59, which is provided on one side of the inner wall of the connecting sleeve 11, and can engage and fix the connecting sleeve 11 to prevent it from loosening.

[0030] Because a high-pressure gas storage tank is installed inside the control box 6, and the high-pressure gas storage tank is connected to the gas outlet connector 5, the airflow in the high-pressure gas storage tank can be controlled through the control box 6. When the high-pressure gas in the high-pressure gas storage tank is delivered to the gas outlet connector 5, the flow of the high-pressure gas flow can push the baffle plate 51 to move in the slide groove 52. The baffle plate 51 drives the crossbar 54 to move, the crossbar 54 drives the active wedge block 55 to move, the active wedge block 55 drives the driven wedge block 56 to move, the driven wedge block 56 drives the push rod 58 to move, the push rod 58 drives the fixing pin 60 to move, and the fixing pin 60 is inserted into the fixing groove 59, thereby automatically locking and fixing the connecting sleeve 11 to prevent it from coming loose.

[0031] Furthermore, the push rod 58 is movably mounted on the support plate 61, which is located in the storage groove 57, and can guide the movement of the push rod 58.

[0032] Furthermore, the high-temperature automatic liquid level gauge 3 is also equipped with a data transmission line 4, which is connected to the control box 6, enabling the data collected by the high-temperature automatic liquid level gauge 3 to be transmitted to the control box 6.

[0033] In one embodiment, a variable diameter cover 53 is provided on one side inside the gas outlet connector 5. The variable diameter cover 53 corresponds to the gas transmission pipe 2 and can increase the flow rate of the gas flow, thereby improving the detection efficiency of the liquid level in the oil well.

[0034] In one embodiment, a wireless signal transmitter 7 is also provided on one side of the control box 6. The wireless signal transmitter 7 is connected to the data storage terminal via a network and can wirelessly transmit the liquid level data in the oil well.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dynamic fluid level detection and transmission device for oil wells, characterized in that, The system includes a control box (6) and a high-temperature automatic liquid level gauge (3). A vent connector (5) is provided on one side of the control box (6), and a gas supply pipe (2) is provided at one end of the high-temperature automatic liquid level gauge (3). A connecting mechanism (1) is provided at one end of the gas supply pipe (2), and the connecting mechanism (1) is connected to the vent connector (5). The connecting mechanism (1) includes an automatic connecting component positioned with the vent connector (5), and the automatic connecting component includes a connecting sleeve (11), which is disposed on the gas supply pipe (2). At one end, a groove (12) is provided in the connecting sleeve (11), and a hemispherical positioning pin (15) is movably provided in the groove (12). A spring (14) is provided on one side of the groove (12), and one end of the spring (14) is connected to the hemispherical positioning pin (15). The hemispherical positioning pin (15) is engaged in the annular positioning groove (16), and the annular positioning groove (16) is provided on the outer surface of the air outlet connector (5). Among them, multiple sets of air outlet locking components are also provided on the outer surface of the air outlet connector (5).

2. The oil well dynamic fluid level detection and transmission device according to claim 1, characterized in that, A threaded hole is also provided in the groove (12), and a positioning bolt (13) is provided in the threaded hole. One end of the positioning bolt (13) abuts against the hemispherical positioning pin (15).

3. The oil well dynamic fluid level detection and transmission device according to claim 1, characterized in that, The air outlet locking assembly includes a baffle plate (51) protruding outwards, the baffle plate (51) being movably disposed within a slide groove (52), and the slide groove (52) being disposed on one side of the inner wall of the air outlet connector (5).

4. The oil well dynamic fluid level detection and transmission device according to claim 3, characterized in that, A crossbar (54) is provided on one side surface of the baffle plate (51). The crossbar (54) is movably disposed in the air outlet connector (5). One end of the crossbar (54) extends into the storage groove (57). The storage groove (57) is disposed on the outer surface of the air outlet connector (5).

5. The oil well dynamic fluid level detection and transmission device according to claim 4, characterized in that, One end of the crossbar (54) is provided with an active wedge (55), which is in contact with a driven wedge (56). The driven wedge (56) is provided at one end of the top rod (58), and the other end of the top rod (58) is provided with an auxiliary fixing pin (60).

6. The oil well dynamic fluid level detection and transmission device according to claim 5, characterized in that, One end of the auxiliary fixing pin (60) is engaged in the fixing groove (59), which is located on one side of the inner wall of the connecting sleeve (11).

7. The oil well dynamic fluid level detection and transmission device according to claim 5, characterized in that, The top rod (58) is movably mounted on the support plate (61), and the support plate (61) is mounted in the storage groove (57).

8. An oil well dynamic fluid level detection and transmission device according to any one of claims 1-7, characterized in that, The high-temperature automatic liquid level gauge (3) is also equipped with a data transmission line (4), which is connected to the control box (6).

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