A natural gas production well pressure boosting and production increasing device

Abstract

This application discloses a natural gas extraction well pressurization and production enhancement device, belonging to the field of natural gas extraction, comprising: a natural gas pipeline; an electric telescopic rod, the electric telescopic rod being assembled inside the natural gas pipeline; a connecting plate, the connecting plate being assembled at the output end of the electric telescopic rod; an air pump, the air pump being assembled inside the natural gas pipeline; an exhaust pipe, the exhaust pipe being assembled on the side of the air pump; an intake pipe, the intake pipe being assembled on the side of the air pump; and a natural gas extraction pipe, the natural gas extraction pipe being assembled on the top of the air pump. A first sleeve is slidably connected to the side of the natural gas pipeline, and a second sleeve is slidably connected to the inner wall of the first sleeve. By opening the dispersion claw, the coal seam fractures are further expanded, and by starting the air pump, gas can enter the coal seam through the expanded fractures. The returned coal gas is drawn in and discharged through the natural gas extraction pipe, solving the problems of insufficient fracture expansion and low production capacity in traditional pressurized mining.

Description

Technical Field

[0001] This application relates to the field of natural gas extraction, and more specifically, to a device for boosting pressure and increasing production in a natural gas extraction well. Background Technology

[0002] Natural gas refers to all gases that exist naturally in nature, including gases formed by various natural processes in the atmosphere, hydrosphere, and lithosphere. Currently, domestic natural gas extraction methods include natural pressure alcohol extraction, natural pressure hydrate inhibitor extraction, natural pressure heating extraction, natural pressure extraction, natural pressure boosting extraction, surface throttling alcohol extraction, surface throttling hydrate inhibitor extraction, surface throttling heating extraction, surface throttling extraction, surface throttling surface boosting extraction, underground throttling alcohol extraction, underground throttling hydrate inhibitor extraction, underground throttling heating extraction, underground throttling extraction, underground throttling surface boosting extraction, drainage extraction, gas extraction, and water extraction.

[0003] The existing pressurized mining method has the technical drawback of insufficient fracture expansion, resulting in low production capacity during actual mining. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a natural gas extraction well pressurization and production enhancement device, which solves the problems mentioned in the background section.

[0005] To achieve the above objectives, this application provides a natural gas extraction well pressurization and production enhancement device, comprising:

[0006] Natural gas pipelines;

[0007] An electrically operated telescopic rod, which is installed inside a natural gas pipeline;

[0008] A connecting plate, which is mounted on the output end of the electric telescopic rod;

[0009] An air pump, which is installed inside the natural gas pipeline;

[0010] An exhaust pipe, which is mounted on the side of the air pump;

[0011] The suction pipe is mounted on the side of the air pump;

[0012] A natural gas collection pipe, which is mounted on top of the gas pump;

[0013] A first sleeve is slidably connected to the side of the natural gas pipeline. A second sleeve is slidably connected to the inner wall of the first sleeve. A spring is mounted on the right side of the second sleeve. A vertical plate is mounted on the side of the first sleeve. A first rotating rod is rotatably connected to the front of the vertical plate via a bearing. A dispersing claw is fixedly sleeved on the outer wall of the first rotating rod. A first baffle is fixedly connected to the outer wall of the first sleeve. A moving ring is slidably connected inside the first sleeve. A pressing rod is fixedly connected to the side of the moving ring. A transmission assembly for driving the second sleeve and the pressing rod is mounted inside the natural gas pipeline.

[0014] Preferably, a limiting plate for preventing the first sleeve from rotating when it moves is fixedly connected to the outer wall of the first sleeve, a second baffle is fixedly connected to the outer wall of the first sleeve, and a torsion spring is assembled on the outer wall of the first rotating rod.

[0015] Preferably, the transmission assembly includes a connecting block, a groove is provided at the bottom of the inner wall of the second sleeve, the connecting block is slidably connected to the inner wall of the groove, a limit ring is fixedly connected to the inner wall of the first sleeve, a connecting rod is fixedly connected to the side of the connecting block, the connecting rod extends to the right through the limit ring, and the extended end of the connecting rod is fixedly connected to the side of the movable ring.

[0016] Preferably, the side of the extrusion rod is formed into a hemisphere for extruding the bottom of the dispersing claw, and the spring preload and deformation resistance are significant.

[0017] Preferably, the natural gas pipeline is equipped with a pushing device for further dispersing the coal seam around the dispersing claw.

[0018] Preferably, the pushing device includes a receiving groove, which is opened on the top of the dispersing claw. A first hydraulic chamber is fixedly connected to the inner wall of the receiving groove, and a second hydraulic chamber is fixedly connected to the top of the first hydraulic chamber and they are connected in communication. A first hydraulic rod is slidably connected to one end of the first hydraulic chamber by a piston, and a push plate is fixedly connected to the front of the first hydraulic rod.

[0019] Preferably, a second hydraulic rod is slidably connected to a piston at one end inside the second hydraulic chamber, and the second hydraulic rod is fixedly connected to the top of the second baffle.

[0020] Preferably, the natural gas pipeline is equipped with a vibration device for further enlarging the cracks in the coal seam.

[0021] Preferably, the vibration device includes a first pulley, which is fixedly sleeved on the outer wall of the first rotating rod. A vibration chamber is provided inside the dispersing claw. A second rotating rod is rotatably connected to the front of the inner wall of the vibration chamber through a bearing. A striking block is fixedly sleeved on the outer wall of the second rotating rod.

[0022] Preferably, a second pulley is fixedly sleeved on the outer wall of the second rotating rod, and a belt is wound around the outer walls of the first pulley and the second pulley.

[0023] The advantages of this application are:

[0024] I. This application expands the coal seam fractures further by opening the dispersion claws, and by starting the gas pump, gas can enter the coal seam through the expanded fractures. The returned coal gas is drawn in and discharged through the natural gas collection pipe, which solves the problems of insufficient fracture expansion and low production capacity in traditional pressurized mining.

[0025] Second, this application utilizes the principle that when the dispersing claw opens, it moves the first and second hydraulic chambers, increasing the pressure inside both chambers. The second hydraulic rod enters the second hydraulic chamber, and the increased pressure pushes the first hydraulic rod forward, which in turn moves the pusher plate forward, further widening the cracks in the coal seam. This allows the coal seam to withstand more gas pressure, improving mining efficiency.

[0026] Third, when the dispersing claw rotates counterclockwise, it drives the first rotating rod to rotate counterclockwise, which in turn drives a series of transmission devices, including a first pulley, a belt, a second pulley, and a second rotating rod, and finally drives the striking block to rotate. The rotation of the striking block generates vibration, which strikes the vibration chamber, further enhancing the fracturing effect of the coal seam, promoting the expansion of cracks in the coal seam, and improving mining efficiency. Attached Figure Description

[0027] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application. In the drawings:

[0028] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the front cross-sectional structure of the present invention;

[0030] Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A in the middle;

[0031] Figure 4 This is a front view of part of the structure of the present invention. Figure 1 ;

[0032] Figure 5 This is a front view of part of the structure of the present invention;

[0033] Figure 6 This is a front view of part of the structure of the present invention. Figure 2 ;

[0034] Figure 7 This is a top view of part of the structure of the present invention;

[0035] Figure 8 For the present invention Figure 5 Enlarged structural diagram at point B.

[0036] In the above image,

[0037] 1. Natural gas pipeline; 21. First sleeve; 22. Second sleeve; 23. Vertical plate; 24. First rotating rod; 25. Dispersing claw; 26. First baffle; 27. Limiting plate; 28. Limiting ring; 29. ​​Connecting rod; 210. Connecting block; 211. Moving ring; 212. Extrusion rod; 213. Second baffle; 3. Pushing device; 31. Receiving groove; 32. First hydraulic chamber; 33. First hydraulic rod; 34. Push plate; 35. Second hydraulic chamber; 36. Second hydraulic rod; 4. Vibration device; 41. First pulley; 42. Belt; 43. Second pulley; 44. Second rotating rod; 45. Striking block; 46. Vibration chamber; 5. Electric telescopic rod; 6. Connecting plate; 7. Air pump; 8. Exhaust pipe; 9. Intake pipe; 10. Natural gas collection pipe. Detailed Implementation

[0038] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative effort should fall within the scope of protection of the present application.

[0039] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be used interchangeably where appropriate for the purposes of describing embodiments of this application herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0040] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0041] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0042] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0043] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0044] Example 1, see Figures 1-8 This embodiment provides a natural gas extraction well pressurization and production enhancement device, including: a natural gas pipeline 1; an electric telescopic rod 5, which is installed inside the natural gas pipeline 1; a connecting plate 6, which is installed at the output end of the electric telescopic rod 5; an air pump 7, which is installed inside the natural gas pipeline 1; an exhaust pipe 8, which is installed on the side of the air pump 7; an intake pipe 9, which is installed on the side of the air pump 7; and a natural gas extraction pipe 10, which is installed on the top of the air pump 7.

[0045] A first sleeve 21 is slidably connected to the side of the natural gas pipeline 1. A second sleeve 22 is slidably connected to the inner wall of the first sleeve 21. A spring is mounted on the right side of the second sleeve 22. A vertical plate 23 is mounted on the side of the first sleeve 21. A first rotating rod 24 is rotatably connected to the front of the vertical plate 23 via a bearing. A dispersing claw 25 is fixedly sleeved on the outer wall of the first rotating rod 24. A first baffle 26 is fixedly connected to the outer wall of the first sleeve 21. A moving ring 211 is slidably connected inside the first sleeve 21. A pressing rod 212 is fixedly connected to the side of the moving ring 211. A transmission assembly for driving the second sleeve 22 and the pressing rod 212 is installed inside the natural gas pipeline 1. An electric telescopic rod 5 is installed inside the natural gas pipeline 1, driving the connecting plate 6 to move. In conjunction with a gas pump 7 installed inside the natural gas pipeline 1, natural gas is collected and pressurized through an exhaust pipe 8 and an intake pipe 9. A natural gas collection pipe 10 is installed on top of the gas pump 7 for discharging the collected natural gas. The dispersion mechanism consists of components such as the first sleeve 21, the second sleeve 22, the spring, the vertical plate 23, the first rotating rod 24, and the dispersion claw 25, which are slidably connected to the side of the natural gas pipeline 1. When the electric telescopic rod 5 inside the natural gas pipeline 1 moves the connecting plate 6, the transmission assembly causes the second sleeve 22 and the extrusion rod 212 to move relative to each other, extruding the dispersion claw 25. Under the rotation of the first rotating rod 24, the dispersion claw disperses the surrounding coal seam, expands the coal seam fractures, increases the natural gas seepage channels, and improves production. A limiting plate 27 is fixedly connected to the outer wall of the first sleeve 21 to prevent the first sleeve 21 from rotating during movement. A second baffle 213 is also fixedly connected to the outer wall of the first sleeve 21. A torsion spring is mounted on the outer wall of the first rotating rod 24. The limiting plate 27 prevents the first sleeve 21 from rotating during movement, and the torsion spring on the outer wall of the first rotating rod 24 allows the dispersion claw 25 to reset after completing the dispersion action, preparing it for the next dispersion action. The transmission assembly includes a connecting block 210. A groove is provided at the bottom of the inner wall of the second sleeve 22. The connecting block 210 is slidably connected to the inner wall of the groove. A limiting ring 28 is fixedly connected to the inner wall of the first sleeve 21. A connecting rod 29 is fixedly connected to the side of the connecting block 210. The connecting rod 29 extends to the right through the limiting ring 28. The extended end of the connecting rod 29 is fixedly connected to the side of the moving ring 211. The transmission assembly slides in the groove of the second sleeve 22 through the connecting block 210. The connecting rod 29 extends through the limiting ring 28 and is connected to the moving ring 211, converting the sliding of the second sleeve 22 into the movement of the moving ring 211. This drives the extrusion rod 212 to apply extrusion force to the dispersing claw 25, realizing the opening and closing action of the dispersing claw 25 and ensuring its effective dispersion of the coal seam. The side of the extrusion rod 212 is formed into a hemisphere for extruding the bottom of the dispersing claw 25. The spring preload and deformation resistance are significant. The hemisphere structure on the side of the extrusion rod 212 facilitates the extrusion of the bottom of the dispersing claw 25, allowing the dispersing claw 25 to open smoothly. The spring preload and deformation resistance are significant, ensuring that the dispersing claw 25 has sufficient force and stability during the extrusion and reset process.

[0046] In practical use, the above-mentioned equipment involves inserting the natural gas pipeline 1 into the coal seam and activating the electric telescopic rod 5. The electric telescopic rod 5 drives the connecting plate 6 to move to the right, which in turn pushes the second sleeve 22 and the first sleeve 21 to the right. Due to the high spring coefficient, the second sleeve 22 will not slide into the first sleeve 21. When the first sleeve 21 slides to the right, the limiting plate 27 prevents the first sleeve 21 from rotating during its movement. As the first sleeve 21 continues to move, the first baffle 26 contacts the inner wall of the natural gas pipeline 1, preventing the first sleeve 21 from moving further. When the connecting plate 6 continues to push, the second sleeve 22 will slide to the right, the spring will be squeezed, the second sleeve 22 will drive the connecting block 210 to move to the right, the connecting block 210 will drive the connecting rod 29 to move to the right, the connecting rod 29 will drive the moving ring 211 to move to the right, the moving ring 211 will drive the squeezing rod 212 to move to the right, the squeezing rod 212 will move to the right and squeeze the dispersing claw 25, the dispersing claw 25 will open up and open the cracks in the coal seam, start the air pump 7, the air pump 7 will pass through the exhaust pipe 8 to let the gas pass through the opened cracks, through the suction pipe 9 to draw in the backflow coal gas, and through the natural gas collection pipe 10 to discharge it.

[0047] Example 2, see Figures 2-6 Based on Embodiment 1, the natural gas pipeline 1 is equipped with a pushing device 3 for further dispersing the coal seam around the dispersing claw 25. The pushing device 3 inside the natural gas pipeline 1 includes a receiving groove 31, a first hydraulic chamber 32, a second hydraulic chamber 35, a first hydraulic rod 33, a push plate 34, and a second hydraulic rod 36. The hydraulic transmission pushes the push plate 34 to squeeze the coal seam, while the second hydraulic rod 36 moves under the pressure of the dispersing claw 25, thereby further dispersing the coal seam and improving the dispersion effect of the device. The pushing device 3 includes a receiving groove 31, which is located at the top of the dispersing claw 25. A first hydraulic chamber 32 is fixedly connected to the inner wall of the receiving groove 31, and a second hydraulic chamber 35 is fixedly connected to the top of the first hydraulic chamber 32 and they are interconnected. A first hydraulic rod 33 is slidably connected to one end of the first hydraulic chamber 32 by a piston. A push plate 34 is fixedly connected to the front of the first hydraulic rod 33. The receiving groove 31 is located at the top of the dispersing claw 25, and the first hydraulic chamber 32 and the second hydraulic chamber 35 are interconnected. The first hydraulic rod 33 slides within the first hydraulic chamber 32 and is fixedly connected to the push plate 34. The second hydraulic rod 36 slides within the second hydraulic chamber 35 and is fixedly connected to the top of the second baffle 213. Through hydraulic transmission, the push plate 34 is pushed to squeeze the coal seam, while the second hydraulic rod 36 moves due to the squeezing of the second baffle 213, thereby further dispersing the coal seam. A second hydraulic rod 36 is slidably connected to one end of the second hydraulic chamber 35 by a piston, and the second hydraulic rod 36 is fixedly connected to the top of the second baffle 213.

[0048] When the above-mentioned equipment is used, when the dispersing claw 25 opens, it drives the second hydraulic chamber 35 and the first hydraulic chamber 32 to move to the left. It enters the second hydraulic chamber 35 through the second hydraulic rod 36, which increases the pressure inside the second hydraulic chamber 35 and the first hydraulic chamber 32. This causes the first hydraulic rod 33 to move forward, and the first hydraulic rod 33 drives the push plate 34 to move forward, which further enlarges the cracks in the coal seam.

[0049] Example 3, see Figures 1-8 Based on Embodiment 1, the natural gas pipeline 1 is equipped with a vibration device 4 for further enlarging coal seam cracks. The vibration device 4 includes a first pulley 41, which is fixedly sleeved on the outer wall of the first rotating rod 24. A vibration chamber 46 is formed inside the dispersing claw 25. A second rotating rod 44 is rotatably connected to the inner wall of the vibration chamber 46 via a bearing. A striking block 45 is fixedly sleeved on the outer wall of the second rotating rod 44. A second pulley 43 is fixedly sleeved on the outer wall of the second rotating rod 44. A belt 42 is wound around the outer walls of the first pulley 41 and the second pulley 43. The vibration device 4 installed inside the natural gas pipeline 1 includes a first pulley 41, a second rotating rod 44, a striking block 45, a second pulley 43, and a belt 42. The first pulley 41 is fixedly sleeved on the outer wall of the first rotating rod 24. A second rotating rod 44 is rotatably connected to the vibration chamber 46 inside the dispersing claw 25 via a bearing. A striking block 45 and a second pulley 43 are fixedly sleeved on the outer wall of the second rotating rod 44. A belt 42 is wound around the outer walls of the first pulley 41 and the second pulley 43. The belt 42 drives the second rotating rod 44 to rotate, causing the striking block 45 to strike and vibrate the coal seam, thereby widening the coal seam cracks.

[0050] When the above-mentioned equipment is used, the dispersing claw 25 rotates counterclockwise to open, which drives the first rotating rod 24 to rotate counterclockwise. The first rotating rod 24 drives the first pulley 41 to rotate, the first pulley 41 drives the belt 42 to rotate, the belt 42 drives the second pulley 43 to rotate, the second pulley 43 drives the second rotating rod 44 to rotate, and the second rotating rod 44 drives the striking block 45 to rotate. When the striking block 45 rotates, it strikes the vibration chamber 46.

[0051] In specific use, the above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A device for boosting pressure and increasing production in a natural gas extraction well, comprising: Natural gas pipeline (1); An electric telescopic rod (5) is installed inside the natural gas pipeline (1); Connecting plate (6), which is assembled at the output end of electric telescopic rod (5); An air pump (7) is installed inside a natural gas pipeline (1); Exhaust pipe (8), said exhaust pipe (8) is mounted on the side of air pump (7); The suction pipe (9) is mounted on the side of the air pump (7); Natural gas collection pipe (10), which is mounted on top of gas pump (7); The natural gas pipeline (1) is characterized in that a first sleeve (21) is slidably connected to the side of the pipeline, a second sleeve (22) is slidably connected to the inner wall of the first sleeve (21), a spring is fitted on the right side of the second sleeve (22), a vertical plate (23) is fitted to the side of the first sleeve (21), a first rotating rod (24) is rotatably connected to the front of the vertical plate (23) via a bearing, a dispersing claw (25) is fixedly fitted on the outer wall of the first rotating rod (24), and a first baffle (26) is fixedly connected to the outer wall of the first sleeve (21). The first sleeve (21) is slidably connected to a moving ring (211), and a pressing rod (212) is fixedly connected to the side of the moving ring (211). The natural gas pipeline (1) is equipped with a transmission assembly for driving the second sleeve (22) and the pressing rod (212). The outer wall of the first sleeve (21) is fixedly connected to a limiting plate (27) for preventing the first sleeve (21) from rotating when it moves. The outer wall of the first sleeve (21) is fixedly connected to a second baffle (213). The outer wall of the first rotating rod (24) is equipped with a torsion spring. The natural gas pipeline (1) is equipped with a pushing device (3) for further dispersing the coal seam around the dispersing claw (25). The pushing device (3) includes a receiving groove (31) which is opened on the top of the dispersing claw (25). A first hydraulic chamber (32) is fixedly connected to the inner wall of the receiving groove (31). A second hydraulic chamber (35) is fixedly connected to the top of the first hydraulic chamber (32) and they are connected in a continuous manner. A first hydraulic rod (33) is slidably connected to a piston at one end inside the first hydraulic chamber (32). A push plate (34) is fixedly connected to the front of the first hydraulic rod (33). A second hydraulic rod (36) is slidably connected to a piston at one end inside the second hydraulic chamber (35). The second hydraulic rod (36) is fixedly connected to the top of the second baffle (213).

2. The natural gas extraction well pressurization and production enhancement device according to claim 1, characterized in that, The transmission assembly includes a connecting block (210), a groove is provided at the bottom of the inner wall of the second sleeve (22), the connecting block (210) is slidably connected to the inner wall of the groove, a limiting ring (28) is fixedly connected to the inner wall of the first sleeve (21), a connecting rod (29) is fixedly connected to the side of the connecting block (210), the connecting rod (29) extends to the right through the limiting ring (28), and the extended end of the connecting rod (29) is fixedly connected to the side of the moving ring (211).

3. The natural gas extraction well pressurization and production enhancement device according to claim 1, characterized in that, The side of the extrusion rod (212) is formed into a hemisphere for extruding the bottom of the dispersing claw (25), and the spring preload and deformation resistance are significant.

4. The natural gas extraction well pressurization and production enhancement device according to claim 1, characterized in that, The natural gas pipeline (1) is equipped with a vibration device (4) for further enlarging the cracks in the coal seam.

5. The natural gas extraction well pressurization and production enhancement device according to claim 4, characterized in that, The vibration device (4) includes a first pulley (41), which is fixedly sleeved on the outer wall of the first rotating rod (24). The dispersing claw (25) has a vibration cavity (46) inside. The front of the inner wall of the vibration cavity (46) is rotatably connected to the second rotating rod (44) through a bearing. The outer wall of the second rotating rod (44) is fixedly sleeved with a striking block (45).

6. The natural gas extraction well pressurization and production enhancement device according to claim 5, characterized in that, The second rotating rod (44) is fixedly fitted with a second pulley (43) on its outer wall, and a belt (42) is wrapped around the outer wall of the first pulley (41) and the second pulley (43).

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