Deep coal bed gas reservoir detection equipment
By using gas blocking cylinders and water spray systems in deep coalbed methane reservoir detection equipment, the problem of gas escape during drilling is solved, and safe and efficient coalbed methane exploration is achieved.
Patent Information
- Application Number
- CN202423130024.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-12-18
AI Technical Summary
During coalbed methane exploration, flammable and explosive gases such as methane in drilling wells can easily escape, increasing the risk of fire or explosion and exacerbating the greenhouse effect.
A deep coalbed methane reservoir detection equipment has been designed. It uses a gas blocking cylinder and a water spray system. The gas blocking cylinder expands and blocks the airflow when the drill bit is drilling. The water spray system sprays water to prevent sparks from igniting the gas, thereby improving safety.
It effectively prevents gas leakage, reduces the risk of fire and explosion, and improves the safety and environmental protection of coalbed methane exploration.
Smart Images
Figure CN223398613U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a detection device, in particular to a deep coalbed methane reservoir detection device. Background Art
[0002] Coalbed methane, also known as coalbed methane or coal mine gas, is an unconventional natural gas resource that is naturally formed in coal beds. The main component of coalbed methane is methane, which exists in the pores and cracks of coal. It is physically adsorbed on the surface of the coal or dissolved in the moisture in the coal. Its calorific value is 2-5 times that of general coal, which is equivalent to natural gas. It can be mixed and used with natural gas, and it is very clean after combustion, producing almost no exhaust gas. It is an excellent fuel for industry, chemical industry, power generation and residents' lives.
[0003] During coalbed methane exploration, drilling wells are used to assess the content and exploitability of coalbed methane in underground coal seams. During the exploration process, flammable and explosive gases such as methane in the detection wells can easily escape from the drilling wells. When the escaped flammable and explosive gases encounter open flames, they can easily cause fires or explosions. The escape of gases such as methane can also aggravate the greenhouse effect.
[0004] Therefore, it is necessary to design a deep coalbed methane reservoir detection equipment that can prevent gas from escaping during the drilling process. Utility Model Content
[0005] In order to overcome the shortcomings that in the exploration process, flammable and explosive gases such as methane in the detection well are easy to escape from the drilling well, and the escaped flammable and explosive gases are easy to cause fire or explosion accidents when encountering open flames, and the escape of methane and other gases will also aggravate the greenhouse effect, the utility model provides a deep coalbed methane reservoir detection equipment that can prevent gas leakage during the drilling process.
[0006] A deep coalbed methane reservoir detection device includes a frame, a moving wheel assembly, a mounting plate, a lifting assembly, a mounting sleeve, a signal processing host, a signal transmitter, a detection module, a second servo motor and a drill bit. The moving wheel assembly is installed at the lower part of the frame, the mounting plate is installed on the frame, the lifting assembly is provided on the mounting plate, the signal transmitter is installed at the top of the mounting sleeve, one side of the lifting assembly is connected to the mounting sleeve, the lifting assembly is used to drive the mounting sleeve to move up and down, a plurality of detection modules are installed on the outside of the mounting sleeve, the detection modules are connected to the signal transmitter, and the first servo motor is installed at the top of the mounting sleeve. Two servo motors, a drill bit is installed on the output shaft of the second servo motor, a signal processing host is installed on the side of the frame away from the sleeve, the signal transmitter is connected to the signal processing host signal, and also includes a guide rod, a screw, a sleeve and a blocking air cylinder. A guide rod is slidingly set on one side of the front of the frame, and a screw is threadedly set on the other side of the front of the frame. The sleeve is fixedly connected to the guide rod, and the sleeve and the screw are rotatably connected. Two blocking air cylinders are installed inside the sleeve. The blocking air cylinder is semi-cylindrical with the upper part and the surrounding areas closed and the bottom open, and the blocking air cylinder is deformed when impacted.
[0007] Optionally, a chamfer is provided on the outer edge of the lower portion of the sleeve.
[0008] Optionally, the lifting assembly includes a first servo motor, a mounting seat, a winding wheel, a pulley assembly and a wire rope. The first servo motor is mounted on the mounting plate, the mounting seat is mounted on the front side of the mounting plate, the winding wheel is rotatably arranged on the mounting seat, the output shaft of the first servo motor and the winding wheel are transmitted through the pulley assembly, a wire rope is wound around the winding wheel, the end of the wire rope is connected to the mounting sleeve, and the end of the wire rope passes through the gap between the two blocking air cylinders.
[0009] Optionally, it also includes a water tank, a water pipe, a pipeline pump, an annular duct and a nozzle. The water tank is installed on the frame, one side of the water tank is connected and communicated with a water pipe, a pipeline pump is installed on the water pipe, an annular duct is installed in the lower part of the mounting sleeve, the lower end of the water pipe passes through the gap between the two blocking air cylinders and is communicated with the annular duct, the outside of the annular duct is connected and communicated with multiple nozzles, and the nozzles pass through the mounting sleeve.
[0010] Optionally, an observation panel is also included, and an observation panel is embedded in one side of the water tank.
[0011] Optionally, a limiting ring is further included, the limiting ring is installed on the frame, and the wire rope, water pipe and installation sleeve pass through the limiting ring.
[0012] The beneficial effects of the utility model are as follows: 1. When the drill bit drills downward into the ground, the screw is rotated to cause the sleeve to drive the blocking gas cylinder to move downward and be pressed into the hole drilled by the drill bit. When detecting, the airflow generated by the impact of the gas enters the blocking gas cylinder, and the two blocking gas cylinders are deformed and expanded, so that the two blocking gas cylinders fill the gap inside the sleeve, thereby preventing the gas from leaking through the detection channel.
[0013] 2. By adding water into the water tank, the pipeline pump is started when the drill bit drives the installation sleeve downward, and the water is sprayed into the detection channel through the nozzle to prevent the drill bit from drilling the soil and generating sparks that ignite the gas, thereby improving the safety of coalbed methane detection. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.
[0015] Figure 2 It is a three-dimensional structural diagram of the steel wire rope, installation sleeve and detection module of the utility model.
[0016] Figure 3 This is a schematic diagram of the three-dimensional cross-sectional structure of the mounting sleeve, drill bit and nozzle of the utility model.
[0017] Figure 4 It is a three-dimensional structural diagram of the vehicle frame, pulley assembly and steel wire rope of the utility model.
[0018] Figure 5 This is a schematic three-dimensional cross-sectional view of the water tank, water pipe and pipeline pump of the utility model.
[0019] Figure 6 It is a schematic three-dimensional cross-sectional structure diagram of the vehicle frame, guide rod and screw rod of the utility model.
[0020] Figure 7 It is a schematic three-dimensional cross-sectional structural diagram of the sleeve and the air-blocking cylinder of the utility model.
[0021] Explanation of the reference numerals: 1: frame, 2: moving wheel assembly, 3: mounting plate, 4: first servo motor, 5: mounting seat, 6: winding wheel, 7: pulley assembly, 8: wire rope, 9: mounting sleeve, 10: signal processing host, 11: signal transmitter, 12: detection module, 13: second servo motor, 14: drill bit, 15: water tank, 16: water pipe, 17: pipeline pump, 18: annular duct, 19: nozzle, 20: guide rod, 21: screw, 22: sleeve, 23: blocking air cylinder, 24: observation plate, 25: limiting ring. DETAILED DESCRIPTION
[0022] The following describes embodiments of the present invention with reference to the accompanying drawings.
[0023] Example 1: A deep coalbed methane reservoir detection device, see Figure 1-Figure 7 As shown, it includes a frame 1, a moving wheel assembly 2, a mounting plate 3, a lifting assembly, a mounting sleeve 9, a signal processing host 10, a signal transmitter 11, a detection module 12, a second servo motor 13 and a drill bit 14. The moving wheel assembly 2 is installed at the lower part of the frame 1. The moving wheel assembly 2 consists of four wheel axles and four rollers. Four wheel axles are installed at the lower part of the frame 1. The wheel axles are located at one end outside the frame 1 and are installed with rollers. A mounting plate 3 is installed on the frame 1, and a lifting assembly is provided on the mounting plate 3. A signal transmitter 11 is installed at the top of the mounting sleeve 9. One side of the lifting assembly is connected to the mounting sleeve 9. The lifting assembly is used to drive the mounting sleeve 9 to move up and down. A plurality of detection modules 12 are installed circumferentially on the outside of the mounting sleeve 9. The detection module 12 is connected to the signal transmitter 11. A second servo motor 13 is installed on the upper part of the mounting sleeve 9 by bolt connection. A drill bit 14 is installed on the output shaft of the servo motor 13, and a signal processing host 10 is installed on the rear side of the frame 1 by bolt connection. The signal transmitter 11 is connected to the signal processing host 10 by signal. It also includes a guide rod 20, a screw 21, a sleeve 22 and a blocking air cylinder 23. A guide rod 20 is slidingly provided on one side of the front of the frame 1, and a screw 21 is threadedly provided on the other side of the front of the frame 1. A sleeve 22 is fixedly connected to the guide rod 20, and a chamfer is provided on the lower outer edge of the sleeve 22, which can make it easier for the sleeve 22 to enter the drill hole on the ground. The sleeve 22 is rotatably connected to the screw 21, and two blocking air cylinders 23 are installed inside the sleeve 22. The blocking air cylinder 23 is a semi-cylindrical shape that is closed on the top and all sides and open at the bottom. The blocking air cylinder 23 is made of rubber, has good flexibility, and prevents the air cylinder 23 from deforming when impacted.
[0024] See Figure 1 and Figure 4 As shown, the lifting assembly includes a first servo motor 4, a mounting seat 5, a winding wheel 6, a pulley assembly 7 and a wire rope 8. The first servo motor 4 is installed on the top rear side of the mounting plate 3 by bolt connection, and the mounting seat 5 is installed on the front side of the mounting plate 3 by bolt connection. The winding wheel 6 is rotatably arranged on the mounting seat 5, and the output shaft of the first servo motor 4 and the winding wheel 6 are transmitted through the pulley assembly 7. A wire rope 8 is wound on the winding wheel 6, and the end of the wire rope 8 is connected to the mounting sleeve 9. The end of the wire rope 8 passes through the gap between the two blocking air cylinders 23.
[0025] By pushing the frame 1 to move on the ground, the moving wheel assembly 2 rolls on the ground to move the frame 1 to the exploration site, and then the second servo motor 13 is started, and the output shaft of the second servo motor 13 drives the drill bit 14 to rotate, and then the first servo motor 4 is started, and the output shaft of the first servo motor 4 drives the winding wheel 6 to rotate through the pulley assembly 7, so that the winding wheel 6 loosens the wire rope 8. At this time, the drill bit 14 drives the installation sleeve 9, the detection module 12 and the signal transmitter 11 to drill underground. The detection module 12 penetrates into the soil to detect coalbed methane, and then transmits the detection situation below to the signal transmitter 11 in the form of a signal, and then the signal transmitter 11 transmits the coalbed methane situation underground. The signal is transmitted to the signal processing host 10, and the staff uses the information feedback from the signal processing host 10 to identify the distribution of underground coalbed methane. When the drill bit 14 drills downward into the ground, the screw 21 is rotated, and the screw 21 drives the sleeve 22 to slide downward under the guidance of the guide rod 20. The sleeve 22 drives the blocking gas cylinder 23 to move downward, so that the sleeve 22 is pressed into the hole drilled by the drill bit 14 on the ground. When coal gas is detected, the coal gas rises and impacts, and the airflow generated by the impact of the coal gas enters the blocking gas cylinder 23. The two blocking gas cylinders 23 are deformed and expanded, so that the two blocking gas cylinders 23 fill the gap inside the sleeve 22, thereby achieving the purpose of preventing coal gas from leaking through the detection channel.
[0026] Example 2: Based on Example 1, refer to Figure 1 、 Figure 2 and Figure 5 As shown, it also includes a water tank 15, a water pipe 16, a pipeline pump 17, an annular conduit 18 and a nozzle 19. The water tank 15 is installed on the frame 1 by bolt connection. The top of the water tank 15 is open. An observation panel 24 is embedded on the left side of the water tank 15. The observation panel 24 is made of transparent acrylic material. The liquid level of the water in the water tank 15 can be observed through the observation panel 24. The front side of the water tank 15 is connected and communicated with the water pipe 16. The pipeline pump 17 is installed on the water pipe 16. An annular duct 18 is installed at the lower part of the sleeve 9, and the lower end of the water pipe 16 is connected to the annular duct 18 through the gap between the two blocking air cylinders 23. The outside of the annular duct 18 is connected and connected with multiple nozzles 19. The nozzles 19 pass through the mounting sleeve 9. A limit ring 25 is installed on the frame 1. The wire rope 8, water pipe 16 and mounting sleeve 9 pass through the limit ring 25. The limit ring 25 guides the wire rope 8 and water pipe 16 to prevent the wire rope 8 and water pipe 16 from being deviated left and right during the exploration process.
[0027] When detecting coalbed methane, water is added to the water tank 15. When the drill bit 14 drives the installation sleeve 9 to move downward, the installation sleeve 9 drives the water pipe 16 to move downward, and then the pipeline pump 17 is started. The pipeline pump 17 sends the water in the water tank 15 into the annular conduit 18 through the water pipe 16, and then sprays it into the detection channel through the nozzle 19 to prevent the drill bit 14 from drilling the soil and generating sparks to ignite the gas, thereby improving the safety of coalbed methane detection.
[0028] While the present invention has been described with reference to exemplary embodiments, it should be understood that the invention is not limited to the disclosed exemplary embodiments. The scope of the following claims is to be accorded the broadest interpretation so as to encompass all modifications and equivalent structures and functions.
Claims
1. A deep coalbed methane reservoir detection device, comprising a vehicle frame (1), a moving wheel assembly (2), a mounting plate (3), a lifting assembly, a mounting sleeve (9), a signal processing host (10), a signal transmitter (11), a detection module (12), a second servo motor (13) and a drill bit (14), wherein the moving wheel assembly (2) is mounted on the lower part of the vehicle frame (1), the mounting plate (3) is mounted on the vehicle frame (1), the lifting assembly is arranged on the mounting plate (3), the signal transmitter (11) is mounted on the top of the mounting sleeve (9), and one side of the lifting assembly is connected to the mounting sleeve (9). The mounting sleeve (9) is connected, the lifting assembly is used to drive the mounting sleeve (9) to move up and down, a plurality of detection modules (12) are installed on the outside of the mounting sleeve (9), the detection modules (12) are connected to the signal transmitter (11) by signal, a second servo motor (13) is installed on the upper part of the mounting sleeve (9), a drill bit (14) is installed on the output shaft of the second servo motor (13), a signal processing host (10) is installed on the side of the frame (1) away from the sleeve (22), and the signal transmitter (11) is connected to the signal processing host (10) by signal, and its characteristics are: The invention also includes a guide rod (20), a screw rod (21), a sleeve (22) and a blocking air cylinder (23). The guide rod (20) is slidably provided on one side of the front of the vehicle frame (1), and the screw rod (21) is threadedly provided on the other side of the front of the vehicle frame (1). The sleeve (22) is fixedly connected to the guide rod (20), and the sleeve (22) and the screw rod (21) are rotatably connected. Two blocking air cylinders (23) are installed inside the sleeve (22). The blocking air cylinder (23) is a semi-cylindrical shape with a closed upper portion and surrounding areas and an open bottom, and the blocking air cylinder (23) is deformed when impacted.
2. The deep coalbed methane reservoir detection equipment according to claim 1, characterized in that: The outer edge of the lower portion of the sleeve (22) is chamfered.
3. The deep coalbed methane reservoir detection equipment according to claim 2, characterized in that: The lifting assembly includes a first servo motor (4), a mounting seat (5), a winding wheel (6), a pulley assembly (7) and a wire rope (8). The first servo motor (4) is mounted on the mounting plate (3), the mounting seat (5) is mounted on the front side of the mounting plate (3), the winding wheel (6) is rotatably arranged on the mounting seat (5), the output shaft of the first servo motor (4) and the winding wheel (6) are driven by the pulley assembly (7), the winding wheel (6) is wound with a wire rope (8), the end of the wire rope (8) is connected to the mounting sleeve (9), and the end of the wire rope (8) passes through the gap between the two blocking air cylinders (23).
4. The deep coalbed methane reservoir detection equipment according to claim 3, characterized in that: The vehicle frame (1) further comprises a water tank (15), a water pipe (16), a pipeline pump (17), an annular conduit (18) and a nozzle (19). The vehicle frame (1) is provided with a water tank (15). One side of the water tank (15) is connected to and communicated with a water pipe (16). A pipeline pump (17) is installed on the water pipe (16). An annular conduit (18) is installed in the lower part of the mounting sleeve (9). The lower end of the water pipe (16) passes through the gap between the two air cylinders (23) and communicates with the annular conduit (18). The outside of the annular conduit (18) is connected to and communicated with a plurality of nozzles (19). The nozzles (19) pass through the mounting sleeve (9).
5. The deep coalbed methane reservoir detection equipment according to claim 4, characterized in that: An observation panel (24) is also included, and the observation panel (24) is embedded in one side of the water tank (15).
6. The deep coalbed methane reservoir detection equipment according to claim 5, characterized in that: It also includes a limiting ring (25), which is installed on the frame (1), and the steel wire rope (8), the water pipe (16) and the installation sleeve (9) pass through the limiting ring (25).