CN219570079U - Underground pressure monitoring device for coal-bed gas well - Google Patents

Abstract

The utility model relates to the field of pressure monitoring devices and discloses a coal-bed gas well underground pressure monitoring device which comprises a box cover, wherein the lower end of the box cover is connected with a main body in a clamping manner, the lower ends of the inner walls of two sides of the main body are fixedly connected with fixing plates, one side of the upper surface of each fixing plate, which is far away from a protective cover, is fixedly connected with a servo motor.

Description

Underground pressure monitoring device for coal-bed gas well

Technical Field

The utility model relates to the field of pressure monitoring devices, in particular to a downhole pressure monitoring device for a coal-bed gas well.

Background

The coal bed gas well is a gas well for exploiting coal bed gas in a coal bed, the coal bed is a coal and gangue layer clamped between a top rock and a bottom rock, the coal bed is a main component part of a coal system, the number of layers of the coal bed, the thickness and the change of the coal bed are main factors for evaluating the exploitation value of a coal field, the structure of the coal bed can be divided into two types, the structure of the coal bed is simple without a clamp layer, the structure of the coal bed is complex with the clamp layer, the clamp stone is also called gangue, clay rock, carbonaceous mudstone, mudstone and siltstone are common, and the ash content of the coal is increased by the clamp layer in the coal bed.

However, when coal bed gas is exploited, the underground gas pressure of the gas well needs to be checked, most of the existing checking modes adopt manual work to detect the underground gas pressure of the gas well, and the gas well needs to be detected one by one, so that the detecting process is time-consuming, the detecting mode can not timely detect the change of the air pressure, so that a worker can not respond timely according to the underground change, the situation that the underground gas pressure is not monitored in real time can not reduce the safety of the gas well, and the worker needs to replace detecting devices with different lengths when dealing with the gas wells with different heights, so that the detecting time is longer.

Accordingly, one skilled in the art would be able to provide a device for monitoring the downhole pressure of a coal-bed gas well to solve the above-mentioned problems.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides a coal-bed gas well underground pressure monitoring device, compared with the existing coal-bed gas well underground pressure detection mode, the device is provided with an air bag in an air pressure detector, air pressure in the air bag belongs to standard atmospheric pressure, when the air pressure detector is in a high-pressure environment, the air pressure in the air bag is extruded by external air pressure, so that the air pressure in the air bag is consistent with the external air pressure, the change of the air pressure can be detected by an air pressure sensor arranged in the air bag and transmitted to a display screen through an electric wire, the underground air pressure can be monitored by a worker in real time through the data of the display screen, the underground situation can be observed through the change of the underground air pressure, and the display screen is connected with a network, so that the worker can conveniently monitor the underground situation of a plurality of gas wells, and the worker can timely respond to the underground situation of the gas well, and the safety of the gas well is improved.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a coalbed methane well underground pressure monitoring device, includes the case lid, the lower extreme joint of case lid is connected with the main part, the lower extreme fixedly connected with fixed plate of main part both sides inner wall, one side fixedly connected with servo motor that the visor was kept away from to the fixed plate upper surface, the equal fixedly connected with fixed block in both sides of main part upper surface, the lower extreme fixedly connected with gyro wheel controller of fixed block outer wall one side, the upper end joint of fixed block inner wall is connected with the second circle axle, the equal fixedly connected with bearing in both sides of second circle axle outer wall, the center fixedly connected with rubber tube of second circle axle outer wall, the one end fixedly connected with air pressure detector of second circle axle is kept away from to the rubber tube, the equal fixedly connected with rubber seal of one end is kept away from to the rubber tube, the inner wall connection of rubber seal has the electric wire, the one end fixedly connected with rubber bag of rubber seal is kept away from to the electric wire outer wall, the outer wall cover of rubber seal's outer wall output port is equipped with rubber seal, the one end is kept away from the sensor fixedly connected with air pressure sensor of rubber seal.

Through the technical scheme, compared with the existing underground pressure detection mode of the coal-bed gas well, the device is provided with the air bag in the air pressure detector, air pressure in the air bag belongs to standard atmospheric pressure, when the air pressure detector is in a high-pressure environment, external air pressure can squeeze air pressure in the air bag, and then the air pressure in the air bag is consistent with external air pressure, change of the air pressure can be detected by the air pressure sensor arranged in the air bag and transmitted to the display screen through the electric wire, so that workers can monitor underground air pressure in real time through data of the display screen, and then can observe underground conditions through change of the underground air pressure, and then the display screen is connected with a network, so that workers can monitor underground conditions of a plurality of gas wells conveniently, and accordingly the workers can timely cope with underground conditions of the gas well, and safety of the gas well is improved.

Further, a fixed circular tube is fixedly connected to the center of the outer wall of one side of the second circular shaft, and a display screen is fixedly connected to one side, away from the second circular shaft, of the fixed circular tube;

through the technical scheme, workers can observe the condition of underground air pressure through the display screen.

Further, a first through groove is formed in the lower end of the outer wall of one side of the box cover, and a second through groove is formed in the lower portion of the outer wall of the front end of the box cover;

through the technical scheme, the device is more convenient to operate.

Further, the upper end of the outer wall of one side of the box cover is fixedly connected with a protective cover, and the periphery of the lower surface of the box cover is fixedly connected with a plurality of clamping blocks;

through above-mentioned technical scheme to make the security of device obtain increasing, and the case lid is more firm with the connection of main part.

Further, a rubber pad is fixedly connected to the lower surface of the main body, and a hollow groove is formed in the center of the outer wall of the front end of the main body;

through above-mentioned technical scheme to make the whole of main part more firm, and make things convenient for the staff to operate.

Further, a first round shaft is fixedly connected to the center of the front end of the upper surface of the main body, and a pulley is sleeved on the outer wall of the first round shaft;

through the technical scheme, the pulley can rotate on the first circular shaft.

Further, the lower surface of the rubber protective layer is provided with a plurality of vent holes, and the inside of the air pressure detector is provided with a cavity;

through the technical scheme, gas can enter the cavity through the vent hole.

Further, the inner wall of the upper surface of the air pressure detector is fixedly connected with a plurality of fixed clamping blocks, and a driving belt is sleeved at one end, far away from the fixed circular tube, of the output end of the servo motor and one end, far away from the fixed circular tube, of the outer wall of the second circular shaft;

through above-mentioned technical scheme, thereby make the connection of air pressure detector and rubber tube more firm through fixedly connected with a plurality of fixed fixture blocks, thereby through the cover be equipped with drive belt make servo motor can drive the second circle axle and rotate.

The utility model has the following beneficial effects:

1. compared with the existing underground pressure detection mode of the coal-bed gas well, the underground pressure monitoring device of the coal-bed gas well is provided with the air bags inside the air pressure detector, the air pressure inside the air bags belongs to standard atmospheric pressure, when the air pressure detector is in a high-pressure environment, the external air pressure can squeeze the air pressure inside the air bags, the air pressure inside the air bags is consistent with the external air pressure, the change of the air pressure can be detected by the air pressure sensor arranged inside the air bags and transmitted to the display screen through the electric wire, so that workers can monitor the underground air pressure in real time through the data of the display screen, further, the underground condition can be observed through the change of the underground air pressure, and then the display screen is connected with the network, so that workers can monitor the underground conditions of a plurality of gas wells conveniently, and accordingly, the workers can timely cope with the underground conditions of the gas wells, and the safety of the gas wells is improved.

2. Compared with the existing underground pressure detection mode of the coal-bed gas well, the underground pressure monitoring device of the coal-bed gas well controls the second circular shaft to rotate through the roller controller, and the air pressure detector at the lower end of the rubber pipe is driven to move downwards through rotation of the second circular shaft, so that the air pressure detector can reach the position to be detected, the device can be conveniently controlled by a worker through a simple operation mode, the device can also detect gas wells with different heights through adjusting the rotation number of the second circular shaft, and the application range of the device is further improved.

3. Compared with the existing underground pressure detection mode of the coal-bed gas well, the underground pressure monitoring device of the coal-bed gas well provided by the utility model has the advantages that the device is better stable through the rubber pad arranged at the lower part of the main body, and the rubber block arranged on the shell of the air pressure detector can well protect the air pressure detector, so that the service life of the air pressure detector is prolonged.

Drawings

FIG. 1 is a schematic diagram of a downhole pressure monitoring device for a coal-bed gas well;

fig. 2 is a schematic diagram of a partial structure of a downhole pressure monitoring device for a coal-bed gas well according to the present utility model;

FIG. 3 is a schematic diagram of a partial structure of a downhole pressure monitoring device for a coal-bed gas well according to the present utility model;

fig. 4 is a schematic diagram of a partial structure of a downhole pressure monitoring device for a coal-bed gas well according to the present utility model;

fig. 5 is a schematic diagram of a partial structure of a downhole pressure monitoring device for a coal-bed gas well according to the present utility model.

Legend description:

1. a case cover; 2. a protective cover; 3. a first through groove; 4. a second through slot; 5. a clamping block; 6. a main body; 7. a rubber pad; 8. a hollow groove; 9. a fixing plate; 10. a servo motor; 11. a first circular shaft; 12. a pulley; 13. a fixed block; 14. a roller controller; 15. a second circular shaft; 16. a bearing; 17. fixing the round tube; 18. a display screen; 19. a rubber tube; 20. an air pressure detector; 21. a rubber protective layer; 22. a vent hole; 23. a chamber; 24. an electric wire; 25. a rubber seal ring; 26. a rubber air bag; 27. a tie; 28. an air pressure sensor; 29. fixing the clamping block; 30. the belt is driven.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, one embodiment provided by the present utility model is: the utility model provides a coalbed methane well underground pressure monitoring device, including case lid 1, the lower extreme joint of case lid 1 is connected with main part 6, the lower extreme fixedly connected with fixed plate 9 of main part 6 both sides inner wall, one side fixedly connected with servo motor 10 that visor 2 was kept away from to fixed plate 9 upper surface, the equal fixedly connected with fixed block 13 in both sides of main part 6 upper surface, the lower extreme fixedly connected with gyro wheel controller 14 of fixed block 13 outer wall one side, the upper end joint of fixed block 13 inner wall is connected with second circular shaft 15, the both sides of second circular shaft 15 outer wall are all fixedly connected with bearing 16, the center department fixedly connected with rubber tube 19 of second circular shaft 15 outer wall, the one end fixedly connected with air pressure detector 20 of second circular shaft 15 is kept away from to rubber tube 19, the equal fixedly connected with rubber protection layer 21 of outer wall and inner wall of air pressure detector 20, the inside fixedly connected with rubber seal 25 of one end is kept away from to rubber tube 19, the inner wall connection with electric wire 24 of rubber seal 25, one end fixedly connected with rubber gasbag 26 of outer wall cover 24 of electric wire 24 outer wall of rubber 26 upper end is equipped with ribbon 27, outer wall cover 24 of electric wire outer wall 24 of outer wall of wire is kept away from air pressure sensor 28 fixedly connected with air pressure sensor.

Compared with the existing underground pressure detection mode of the coal-bed gas well, the device is provided with the air bags in the air pressure detector 20, the air pressure in the air bags belongs to standard atmospheric pressure, when the air pressure detector 20 is in a high-pressure environment, the air pressure in the air bags is extruded by the external air pressure, so that the air pressure in the air bags is consistent with the air pressure in the air bags, the change of the air pressure is detected by the air pressure sensor 28 arranged in the air bags and is transmitted to the display screen 18 through the electric wire 24, the underground air pressure can be monitored by workers in real time through the data of the display screen 18, the underground condition can be observed through the change of the underground air pressure, the display screen 18 is connected with a network, and the workers can conveniently monitor the underground conditions of a plurality of gas wells, so that the workers can timely cope with the underground conditions of the gas wells, and the safety of the gas wells is improved.

The center department fixedly connected with pipe 17 of second round axle 15 one side outer wall, one side fixedly connected with display screen 18 of second round axle 15 is kept away from to fixed pipe 17, thereby make the staff can observe the condition of underground atmospheric pressure through display screen 18, first logical groove 3 has been seted up to the lower extreme of case lid 1 one side outer wall, second logical groove 4 has been seted up to the lower part of case lid 1 front end outer wall, thereby make the device operation of being convenient for more, the upper end fixedly connected with visor 2 of case lid 1 one side outer wall, the peripheral fixedly connected with of case lid 1 lower surface a plurality of fixture blocks 5, thereby the security of device obtains increasing, and the case lid 1 is more firm with the connection of main part 6, the lower surface fixedly connected with rubber pad 7 of main part 6, thereby the hollow groove 8 has been seted up in the center department of main part 6 front end outer wall, thereby make the whole of main part 6 be more firm, and make the staff operate, and make the center department fixedly connected with first round axle 11, the outer wall cover of first round axle 11 has pulley 12, thereby make pulley 12 rotate on first round axle 11, the upper end 21 has a plurality of air pressure sensor devices 22 to be equipped with through the outer wall 20, thereby the outer wall 20 of the outer wall of the fixed connection of a plurality of pneumatic sensor devices of pneumatic sensor 20, the outer wall 20 has the second pneumatic sensor 20, the inner sensor device is connected with the outer wall 20 is realized through the fixed sensor 20, the outer wall of the pneumatic sensor is connected with the outer wall of the pneumatic sensor is more firm through the sensor 20, the outer sensor is connected with the outer sensor 20, the outer sensor is connected with the outer sensor is 20, and the outer sensor is 20, the outer sensor is convenient.

Working principle: when the device is needed to be used, the device is firstly placed beside a gas well, the air pressure detector 20 is placed in the well, the second circular shaft 15 is controlled to rotate through the second circular shaft controller 14, the second circular shaft 15 rotates to drive the air pressure detector 20 at the lower end of the rubber tube 19 to move downwards, the air pressure detector 20 can reach the position to be detected, an air bag is arranged in the air pressure detector 20 through the device, the air pressure in the air bag belongs to standard atmospheric pressure, when the air pressure detector 20 is in a high-pressure environment, the air pressure in the air bag can be extruded by the air pressure outside, the air pressure in the air bag is consistent with the air pressure outside, the change of the air pressure can be detected by the air pressure sensor 28 arranged in the air bag and transmitted to the display screen 18 through the electric wire 24, and accordingly, workers can monitor the air pressure in the well in real time through the data of the display screen 18.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims (8)

1. The utility model provides a coal bed gas well underground pressure monitoring device, includes case lid (1), its characterized in that: the lower end joint of case lid (1) is connected with main part (6), the lower extreme fixedly connected with fixed plate (9) of main part (6) both sides inner wall, one side fixedly connected with servo motor (10) of visor (2) are kept away from to fixed plate (9) upper surface, the both sides of main part (6) upper surface are all fixedly connected with fixed block (13), the lower extreme fixedly connected with gyro wheel controller (14) of fixed block (13) outer wall one side, the upper end joint of fixed block (13) inner wall is connected with second circular shaft (15), the both sides of second circular shaft (15) outer wall are all fixedly connected with bearing (16);

the center department fixedly connected with rubber tube (19) of second round axle (15) outer wall, the one end fixedly connected with air pressure detector (20) of second round axle (15) are kept away from to rubber tube (19), the equal fixedly connected with rubber protection layer (21) of outer wall and inner wall of air pressure detector (20), the inside fixedly connected with rubber seal (25) of second round axle (15) one end are kept away from to rubber tube (19), the inner wall of rubber seal (25) is connected with electric wire (24), the one end fixedly connected with rubber gasbag (26) of rubber seal (25) are kept away from to electric wire (24) outer wall, the outer wall cover of rubber gasbag (26) upper end delivery outlet is equipped with ribbon (27), the outer wall fixedly connected with air pressure sensor (28) of rubber seal (25) one end are kept away from to electric wire (24).

2. The coal-bed gas well downhole pressure monitoring device according to claim 1, wherein: the center of one side outer wall of the second circular shaft (15) is fixedly connected with a fixed circular tube (17), and one side, far away from the second circular shaft (15), of the fixed circular tube (17) is fixedly connected with a display screen (18).

3. The coal-bed gas well downhole pressure monitoring device according to claim 1, wherein: the lower end of the outer wall of one side of the box cover (1) is provided with a first through groove (3), and the lower part of the outer wall of the front end of the box cover (1) is provided with a second through groove (4).

4. The coal-bed gas well downhole pressure monitoring device according to claim 1, wherein: the upper end of the outer wall of one side of the box cover (1) is fixedly connected with a protective cover (2), and the periphery of the lower surface of the box cover (1) is fixedly connected with a plurality of clamping blocks (5).

5. The coal-bed gas well downhole pressure monitoring device according to claim 1, wherein: the lower surface of the main body (6) is fixedly connected with a rubber pad (7), and a hollow groove (8) is formed in the center of the outer wall of the front end of the main body (6).

6. The coal-bed gas well downhole pressure monitoring device according to claim 1, wherein: the center of the front end of the upper surface of the main body (6) is fixedly connected with a first round shaft (11), and a pulley (12) is sleeved on the outer wall of the first round shaft (11).

7. The coal-bed gas well downhole pressure monitoring device according to claim 1, wherein: a plurality of vent holes (22) are formed in the lower surface of the rubber protection layer (21), and a cavity (23) is formed in the air pressure detector (20).

8. The coal-bed gas well downhole pressure monitoring device according to claim 1, wherein: the inner wall fixedly connected with a plurality of fixed fixture blocks (29) of air pressure detector (20) upper surface, the output of servo motor (10) and the one end that second circle axle (15) outer wall kept away from fixed pipe (17) all overlap and are equipped with driving belt (30).