CN220687270U - Rotary jet well-flushing nozzle of coal bed gas horizontal well - Google Patents
Rotary jet well-flushing nozzle of coal bed gas horizontal well Download PDFInfo
- Publication number
- CN220687270U CN220687270U CN202322395418.4U CN202322395418U CN220687270U CN 220687270 U CN220687270 U CN 220687270U CN 202322395418 U CN202322395418 U CN 202322395418U CN 220687270 U CN220687270 U CN 220687270U
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- wall
- shaft sleeve
- nozzle
- rotary
- sleeve
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- 238000011010 flushing procedure Methods 0.000 title abstract description 11
- 239000003245 coal Substances 0.000 title description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 66
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000007921 spray Substances 0.000 claims description 28
- 238000005406 washing Methods 0.000 claims description 11
- 238000005507 spraying Methods 0.000 claims description 5
- 239000010883 coal ash Substances 0.000 abstract description 24
- 230000000694 effects Effects 0.000 abstract description 6
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 7
- 238000004140 cleaning Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Abstract
The utility model relates to the technical field of coalbed methane development equipment, and discloses a rotary jet flushing nozzle of a coalbed methane horizontal well, which comprises an inner shaft sleeve mechanism, wherein the outer wall of the inner shaft sleeve mechanism is provided with a rotary nozzle outer shaft sleeve, the left side of the inner wall of the rotary nozzle outer shaft sleeve is fixedly provided with a first limiting block, the outer wall of the first limiting block is movably connected with the inner wall of the inner shaft sleeve mechanism, the right side of the inner wall of the rotary nozzle outer shaft sleeve is fixedly provided with a second limiting block, the inner shaft sleeve mechanism, the rotary nozzle outer shaft sleeve and a spiral auger are arranged, reverse impact force is generated through the inner shaft sleeve mechanism to drive the rotary nozzle outer shaft sleeve to start rotating, the rotary nozzle outer shaft sleeve drives the spiral auger to rotate so as to extract coal ash and dirty water in a shaft, the phenomenon that the coal ash is blocked on the lower pipe wall to cause the blocking of the rotary nozzle outer shaft sleeve is avoided, and the flushing effect of the whole flushing nozzle is improved.
Description
Technical Field
The utility model relates to the technical field of coal bed gas development equipment, in particular to a rotary jet well washing nozzle of a coal bed gas horizontal well.
Background
Application number 201720255605.4 discloses a coal bed gas horizontal well rotary jet well-flushing nozzle, which comprises a nozzle shaft sleeve; one end bearing is sleeved in the spray nozzle shaft sleeve, and the other free end of the bearing protrudes out of the rotary inner shaft sleeve arranged on the spray nozzle shaft sleeve; the front nozzle is fixedly sleeved at the free end of the rotating inner shaft sleeve; the spray head shaft sleeve, the rotary inner shaft sleeve and the front spray head are internally provided with coaxial inner flow passages; the front nozzle is provided with a lateral nozzle and a forward nozzle in sequence along the water flow direction, the lateral nozzle is radially outwards arranged by taking the inner flow passage as the center, and the forward nozzle is radially and forwards obliquely arranged by taking the inner flow passage as the center. The front nozzle is driven to rotate freely under the reverse impact force generated by the injection of the high-pressure liquid flow from the lateral nozzle, a swirl field is generated in the annular space of the oil pipe and the sleeve, the turbulence intensity of the coal ash is increased, the sinking speed of the coal ash is slowed down, the coal ash deposited on the lower pipe wall is carried up by the swirl and then returns along the annular space along with the action of the horizontal liquid flow, and the coal ash is carried out of the shaft, so that the high-efficiency cleaning of the coal ash or coal dust in the shaft is realized.
However, the method of using the oil pipe and the sleeve to generate the swirl field in the annulus of the well washing nozzle to increase the turbulence intensity of the coal ash and slow down the sinking speed of the coal ash, carrying the coal ash deposited on the lower pipe wall by the swirl and then returning the coal ash along the annulus along with the action of horizontal liquid flow is not ideal, and the coal ash is formed into coal ash water because the mixing weight of the coal ash and water can be changed, so that it is not practical to slow down the sinking speed of the coal ash only by the turbulence intensity, and the coal ash can be continuously accumulated in the well.
For this purpose we propose a coal bed gas horizontal well rotary jet well cleanup nozzle.
Disclosure of Invention
The utility model mainly solves the technical problems existing in the prior art and provides a rotary jet well washing nozzle for a coal bed methane horizontal well.
In order to achieve the above purpose, the technical scheme is that the coal bed methane horizontal well rotary jet flushing sprinkler comprises an inner shaft sleeve mechanism, wherein a rotary sprinkler outer shaft sleeve is arranged on the outer wall of the inner shaft sleeve mechanism, a first limiting block is fixedly arranged on the left side of the inner wall of the rotary sprinkler outer shaft sleeve, the outer wall of the first limiting block is movably connected with the inner wall of the inner shaft sleeve mechanism, a second limiting block is fixedly arranged on the right side of the inner wall of the rotary sprinkler outer shaft sleeve, a third limiting block is fixedly arranged on the lower end of the inner wall of the rotary sprinkler outer shaft sleeve, a fourth limiting block is fixedly arranged on the lower end of the second limiting block, a spiral auger is fixedly arranged on the outer wall of the rotary sprinkler outer shaft sleeve, a first water spray opening is formed on the left side of the inner wall of the rotary sprinkler outer shaft sleeve, a second water spray opening is formed on the right side of the inner wall of the rotary sprinkler outer shaft sleeve, a third water spray opening is formed on the upper end of the first water spray opening, a fourth water spray opening is formed on the inner wall of the rotary sprinkler outer shaft sleeve.
Preferably, the inner shaft sleeve mechanism comprises an inner shaft sleeve body, and the outer wall of the inner shaft sleeve body is movably connected with the inner wall of the outer shaft sleeve of the rotary spray head.
Preferably, the outer wall of the second limiting block is movably connected with the inner wall of the inner sleeve mechanism, and the outer wall of the third limiting block is movably connected with the inner wall of the inner sleeve mechanism.
Preferably, the outer wall of the fourth limiting block is movably connected with the inner wall of the inner sleeve mechanism.
Preferably, an inner runner is formed in the inner sleeve body.
Preferably, a first water outlet is formed in the position, located at the first water spraying port, of the left side wall surface of the inner sleeve body.
Preferably, the right side wall surface of the inner sleeve body is provided with a second water outlet at the second water spraying port.
Preferably, a third water outlet is formed in the position, located at the third water spraying port, of the left side wall surface of the inner sleeve body.
Preferably, a fourth water outlet is formed in the position, located at the fourth water spraying port, of the right side wall surface of the inner sleeve body.
Advantageous effects
The utility model provides a coal bed gas horizontal well rotary jet flow well-flushing nozzle. The beneficial effects are as follows:
(1) This rotatory efflux well-flushing shower nozzle of coal bed gas horizontal well through having set up interior axle sleeve mechanism, rotatory shower nozzle outer axle sleeve and spiral auger, produces reverse impulse through interior axle sleeve mechanism and drives the outer axle sleeve of rotatory shower nozzle and begin to rotate, and rotatory in the shaft coal ash and dirty water take out of rotatory with the spiral auger of rotatory shower nozzle outer axle sleeve, has avoided the coal ash to cause the pipe wall to block up and lead to blocking the outer axle sleeve of rotatory shower nozzle under the pipe wall, has improved the well-flushing effect of whole well-flushing shower nozzle.
(2) This rotatory efflux well washing shower nozzle of coalbed methane horizontal well through having set up first water jet, second water jet, third water jet and fourth water jet, utilizes four shower nozzles to wash the coal ash in the pit shaft simultaneously, has improved the well washing efficiency and the effect of whole well washing shower nozzle by a wide margin.
(3) This rotatory efflux well washing shower nozzle of coalbed methane horizontal well through having set up first stopper, second stopper, third stopper and fourth stopper, first stopper, second stopper, third stopper and fourth stopper can be with rotatory outer axle sleeve block of shower nozzle on interior axle sleeve mechanism, have avoided taking place not hard up condition to take place between rotatory shower nozzle outer axle sleeve and the interior axle sleeve mechanism to take place, have improved the structural strength of whole device.
Drawings
FIG. 1 is a cross-sectional view of the front overall structure of the present utility model;
FIG. 2 is a cross-sectional view of the inner hub mechanism of the present utility model;
fig. 3 is a schematic view of the structure of the spiral auger of the present utility model.
Legend description: 10. an inner sleeve mechanism; 11. rotating the outer shaft sleeve of the spray head; 12. a first limiting block; 13. a second limiting block; 14. a third limiting block; 15. a fourth limiting block; 16. a spiral auger; 17. a first water jet; 18. a second water jet; 19. a third water jet; 20. a fourth water jet; 21. an inner hub body; 22. an inner flow passage; 23. a first water outlet; 24. a second water outlet; 25. a third water outlet; 26. and a fourth water outlet.
Detailed Description
Embodiment one: the coal bed gas horizontal well rotary jet flow well washing spray head, as shown in figure 1, comprises an inner shaft sleeve mechanism 10, the outer wall of the inner shaft sleeve mechanism 10 is provided with a rotary spray head outer shaft sleeve 11, the left side of the inner wall of the rotary spray head outer shaft sleeve 11 is fixedly provided with a first limiting block 12, the outer wall of the first limiting block 12 is movably connected with the inner wall of the inner shaft sleeve mechanism 10, the right side of the inner wall of the rotary spray head outer shaft sleeve 11 is fixedly provided with a second limiting block 13, the outer wall of the second limiting block 13 is movably connected with the inner wall of the inner shaft sleeve mechanism 10, the inner wall of the rotary spray head outer shaft sleeve 11 is fixedly provided with a third limiting block 14 at the lower end of the first limiting block 12, the outer wall of the third limiting block 14 is movably connected with the inner wall of the inner shaft sleeve mechanism 10, the inner wall of the rotary spray head outer shaft sleeve 11 is fixedly provided with a fourth limiting block 15 at the lower end of the second limiting block 13, and the outer wall of fourth stopper 15 and interior hub mechanism 10's inner wall swing joint, first water jet 17 has been seted up on the inner wall left side of rotatory nozzle outer sleeve 11, second water jet 18 has been seted up on the inner wall right side of rotatory nozzle outer sleeve 11, third water jet 19 has been seted up to the inner wall that rotatory nozzle outer sleeve 11 is located the upper end of first water jet 17, fourth water jet 20 has been seted up to the upper end that the inner wall of rotatory nozzle outer sleeve 11 is located second water jet 18, through having set up interior hub mechanism 10, rotatory nozzle outer sleeve 11 and spiral auger 16, produce reverse impulse through interior hub mechanism 10 and drive rotatory nozzle outer sleeve 11 and begin to rotate, rotatory outside of rotatory nozzle outer sleeve 11 drives the spiral auger 16 and take out the coal ash and the dirty water in the pit shaft, avoided the coal ash to cause the pipe wall jam to lead to blocking rotatory nozzle outer sleeve 11 under the pipe wall, the well washing effect of whole well washing shower nozzle has been improved.
Embodiment two: on the basis of the first embodiment, as shown in fig. 2, the inner sleeve mechanism 10 includes an inner sleeve body 21, the outer wall of the inner sleeve body 21 is movably connected with the inner wall of the outer sleeve 11 of the rotary spray nozzle, an inner runner 22 is formed in the inner sleeve body 21, a first water outlet 23 is formed in the position of a first water spray nozzle 17 on the left side wall surface of the inner sleeve body 21, a second water outlet 24 is formed in the position of a second water spray nozzle 18 on the right side wall surface of the inner sleeve body 21, a third water outlet 25 is formed in the position of a third water spray nozzle 19 on the left side wall surface of the inner sleeve body 21, a fourth water outlet 26 is formed in the position of a fourth water spray nozzle 20 on the right side wall surface of the inner sleeve body 21, and coal ash in a shaft is cleaned by using four spray nozzles simultaneously, so that the well efficiency and the effect of the whole well cleaning spray nozzle are greatly improved.
Embodiment III: on the basis of the first embodiment and the second embodiment, as shown in fig. 3, the spiral auger 16 is fixedly installed on the outer wall of the outer shaft sleeve 11 of the rotary spray head, and the first limiting block 12, the second limiting block 13, the third limiting block 14 and the fourth limiting block 15 are arranged, so that the outer shaft sleeve 11 of the rotary spray head can be clamped on the inner shaft sleeve mechanism 10 through the first limiting block 12, the second limiting block 13, the third limiting block 14 and the fourth limiting block 15, the occurrence of loosening between the outer shaft sleeve 11 of the rotary spray head and the inner shaft sleeve mechanism 10 is avoided, and the structural strength of the whole device is improved.
The working principle of the utility model is as follows: when the shaft is washed, high-pressure liquid flow is introduced into the inner flow passage 22 of the inner shaft sleeve mechanism 10, firstly, the high-pressure liquid flow generates backward jet flow through the backward first water outlet 23, the second water outlet 24, the third water outlet 25 and the fourth water outlet 26, the left coal ash is washed through the third water outlet 19 and the fourth water outlet 20, then the other part of liquid flow is sprayed out from the first water outlet 17 and the second water outlet 18 through the inner flow passage 22, reverse impact force is generated when the high-pressure liquid flow is sprayed out, the reverse impact force drives the rotary nozzle outer shaft sleeve 11 to rotate on the inner shaft sleeve mechanism 10, and the spiral auger 16 on the rotary nozzle outer shaft sleeve 11 carries the coal ash deposited on the lower pipe wall through the spiral flow and then returns along the spiral auger 16.
The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (9)
1. The utility model provides a rotatory efflux well washing shower nozzle of coalbed methane horizontal well, includes interior sleeve mechanism (10), its characterized in that: the outer wall of interior axle sleeve mechanism (10) is provided with rotatory nozzle outer axle sleeve (11), the inner wall left side fixed mounting of rotatory nozzle outer axle sleeve (11) has first stopper (12), and the inner wall swing joint of the outer wall of first stopper (12) and interior axle sleeve mechanism (10), the inner wall right side fixed mounting of rotatory nozzle outer axle sleeve (11) has second stopper (13), the inner wall of rotatory nozzle outer axle sleeve (11) is located the lower extreme fixed mounting of first stopper (12) has third stopper (14), the inner wall of rotatory nozzle outer axle sleeve (11) is located the lower extreme fixed mounting of second stopper (13) has fourth stopper (15), the outer wall fixed mounting of rotatory nozzle outer axle sleeve (11) has screw auger (16), first water jet (17) have been seted up in the inner wall left side of rotatory nozzle outer axle sleeve (11), second water jet (18) have been seted up on the inner wall right side of rotatory nozzle outer axle sleeve (11), the inner wall of rotatory nozzle outer axle sleeve (11) is located the upper end of first water jet (17) has seted up third water jet (19), the inner wall of rotatory nozzle outer axle sleeve (11) is located the upper end of second water jet (18) has been seted up.
2. The rotary jet well cleanup nozzle of a coalbed methane horizontal well according to claim 1, wherein: the inner shaft sleeve mechanism (10) comprises an inner shaft sleeve body (21), and the outer wall of the inner shaft sleeve body (21) is movably connected with the inner wall of the outer shaft sleeve (11) of the rotary spray head.
3. The rotary jet well cleanup nozzle of a coalbed methane horizontal well according to claim 1, wherein: the outer wall of the second limiting block (13) is movably connected with the inner wall of the inner sleeve mechanism (10), and the outer wall of the third limiting block (14) is movably connected with the inner wall of the inner sleeve mechanism (10).
4. The rotary jet well cleanup nozzle of a coalbed methane horizontal well according to claim 1, wherein: the outer wall of the fourth limiting block (15) is movably connected with the inner wall of the inner shaft sleeve mechanism (10).
5. The rotary jet well cleanup nozzle of a coalbed methane horizontal well according to claim 2, wherein: an inner runner (22) is formed in the inner sleeve body (21).
6. The rotary jet well cleanup nozzle of a coalbed methane horizontal well according to claim 2, wherein: the left side wall surface of the inner sleeve body (21) is provided with a first water outlet (23) at the first water jet (17).
7. The rotary jet well cleanup nozzle of a coalbed methane horizontal well according to claim 2, wherein: the right side wall surface of the inner sleeve body (21) is provided with a second water outlet (24) at the second water jet (18).
8. The rotary jet well cleanup nozzle of a coalbed methane horizontal well according to claim 2, wherein: the left side wall surface of the inner sleeve body (21) is provided with a third water outlet (25) at the third water spraying port (19).
9. The rotary jet well cleanup nozzle of a coalbed methane horizontal well according to claim 2, wherein: the right side wall surface of the inner sleeve body (21) is provided with a fourth water outlet (26) at the fourth water jet (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322395418.4U CN220687270U (en) | 2023-09-05 | 2023-09-05 | Rotary jet well-flushing nozzle of coal bed gas horizontal well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322395418.4U CN220687270U (en) | 2023-09-05 | 2023-09-05 | Rotary jet well-flushing nozzle of coal bed gas horizontal well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220687270U true CN220687270U (en) | 2024-03-29 |
Family
ID=90407224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322395418.4U Active CN220687270U (en) | 2023-09-05 | 2023-09-05 | Rotary jet well-flushing nozzle of coal bed gas horizontal well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220687270U (en) |
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2023
- 2023-09-05 CN CN202322395418.4U patent/CN220687270U/en active Active
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