CN213838587U - Anti-drop sleeve descaling gun - Google Patents
Anti-drop sleeve descaling gun Download PDFInfo
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- CN213838587U CN213838587U CN202022983571.5U CN202022983571U CN213838587U CN 213838587 U CN213838587 U CN 213838587U CN 202022983571 U CN202022983571 U CN 202022983571U CN 213838587 U CN213838587 U CN 213838587U
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- head
- scraper
- rotating head
- scale removal
- sleeve pipe
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Abstract
The utility model provides an anticreep formula sleeve pipe scale removal rifle. Relates to the technical field of oil field downhole tools. The body is connected with the rotating head through the gland, the bearing, the spacer bush and the shaft retainer ring, threaded holes are uniformly distributed in the conical head at the lower part of the rotating head, the threaded holes in the conical head are connected with the nozzle in a threaded manner, the threaded holes in the conical head are communicated with the central counter bore of the rotating head, and a hollow helical blade is fixedly connected in the central counter bore of the rotating head. The utility model discloses following beneficial effect has: when elastic connection's scraper scrapes the scale removal to the sleeve pipe, can prevent rigid scraping between scraper and the sleeve pipe, avoid causing the scraper fracture, make the scale removal operation go on smoothly, the rotation head is when liquid flows in through helical blade, the drive rotation head is rotatory, rotatory rotation head drives the scraper and scrapes the scale removal to the sleeve pipe, rotatory nozzle washes the casing wall simultaneously, along with the decline of tubular column, carry out all-round scale removal to the sleeve pipe, has simple structure, characteristics that the scale removal is effectual.
Description
The technical field is as follows:
the utility model belongs to the technical field of the oil field instrument technique in the pit and specifically relates to anticreep formula sleeve pipe scale removal rifle.
Background art:
scaling is inevitable in the oil-gas production process of an oil well, insoluble mixtures are gradually mixed together and adhered to drilling equipment and pipelines, so that the surface of a production oil pipe is rough, the frictional resistance is continuously increased, the flow rate is reduced, even the flow cross-sectional area of the oil pipe is reduced, the production efficiency is greatly reduced, two common scaling methods are adopted at present, namely chemical scaling and mechanical scaling, the chemical scaling can damage the underground oil pipe and tools, and the cost is high; mechanical descaling requires single well operation to lift the oil pipe, which affects water injection operation, and has long time, high labor intensity and high cost.
The utility model has the following contents:
in order to solve the problem, the utility model provides an anticreep formula sleeve pipe scale removal rifle.
The technical scheme of the utility model is that: the spiral blade type internal thread rotary nozzle comprises a body, wherein an internal thread upper joint is arranged at the upper part of the body, the body is connected with a rotary head through a gland, an upper bearing, a lower bearing, a spacer bush and a shaft retainer ring, the lower part of the rotary head is a conical head, uniformly distributed threaded holes are formed in the conical head, a nozzle is connected with the threaded holes in the conical head in an internal thread mode, the threaded holes in the conical head are communicated with a central counter bore of the rotary head, and a hollow spiral blade is fixedly connected in the central counter bore of the rotary head;
open the bar groove that has the equipartition on the excircle of rotor lower part, the bar inslot is equipped with the scraper, and the scraper bottom is equipped with the cylinder, and the cylinder outside cover has the spring, and the spring is located between the bar groove of scraper bottom and rotor, and there is the step at the scraper middle part, and the fixed plate passes through bolt fixed connection rotor, presses simultaneously on the both sides step of scraper.
The bottom of the outer edge of the scraper is provided with a chamfer.
The bottom of the rotating head is provided with a threaded through hole which is communicated with a central counter bore of the rotating head in a threaded sealing way.
The gland is connected with the body through a bolt sealing ring, and a dustproof ring is arranged between the inner hole of the rotating head and the inner hole of the body on the upper part of the bearing.
The utility model discloses following beneficial effect has: when elastic connection's scraper scrapes the scale removal to the sleeve pipe, can prevent rigid scraping between scraper and the sleeve pipe, avoid causing the scraper fracture, make the scale removal operation go on smoothly, the rotation head is when liquid flows in through helical blade, the drive is rotated head 3 and is rotatory, rotatory rotation head drives the scraper and scrapes the scale removal to the sleeve pipe, rotatory nozzle washes the casing wall simultaneously, along with the decline of tubular column, carry out all-round scale removal to the sleeve pipe, has simple structure, characteristics that the scale removal is effectual.
Description of the drawings:
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a cross-sectional view a-a of fig. 1.
In the figure, 1-a body, 2-an upper joint, 3-a rotating head, 4-a fixed plate, 5-a nozzle, 6-a scraper, 7-a cylinder, 8-a spring, 9-a gland, 10-a bearing, 11-a spacer, 12-a shaft retainer ring, 13-a dust ring, 14-a chamfer, 15-a cock and 16-a helical blade.
The specific implementation mode is as follows:
the present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 1 and fig. 2, the anti-drop type casing descaling gun comprises a body 1, wherein an upper connector 2 with internal threads is arranged at the upper part of the body 1 and is connected with a pipe column, the body 1 is connected with a rotating head 3 through a gland 9, an upper bearing 10, a lower bearing 10, a spacer 11 and a retainer ring 12 for a shaft, the rotating head 3 can rotate in the body 1 and cannot fall down to the well, the anti-drop effect is achieved, the lower part of the rotating head 3 is a conical head, threaded holes are uniformly distributed in the conical head, the threaded holes in the conical head are in threaded connection with a nozzle 5, the threaded holes in the conical head are communicated with a central counter bore of the rotating head 3, and a hollow helical blade 16 is fixedly connected in the central counter bore of the rotating head 3;
the outer circle of the lower part of the rotating head 3 is provided with uniformly distributed strip-shaped grooves, the strip-shaped grooves are internally provided with scrapers 6, the bottoms of the scrapers 6 are provided with cylinders 7, the outer sides of the cylinders 7 are sleeved with springs 8, the springs 8 are positioned between the bottoms of the scrapers 6 and the strip-shaped grooves of the rotating head 3, the middle parts of the scrapers 6 are provided with steps, fixed plates 4 are fixedly connected with the rotating head 3 through bolts and simultaneously press the steps on two sides of the scrapers 6, when the scrapers 6 which are elastically connected scrape and remove scale on the sleeve, the hard scraping between the scrapers 6 and the sleeve can be prevented, the scrapers 6 are prevented from being broken, the scale removal operation is smoothly carried out, the rotating head 3 drives the rotating head 3 to rotate when liquid flows in through the spiral blades 16, the rotating head 3 drives the scrapers 6 to scrape and remove scale on the sleeve, and the rotating nozzles 5 wash the sleeve wall simultaneously, and carry out all-round scale removal on the sleeve along with the descending of a pipe column, the scale removal device has the advantages of simple structure, Good descaling effect.
The outer edge of the scraper 6 is provided with a chamfer 14 at the bottom for guiding.
The bottom of the rotating head 3 is provided with a threaded through hole which is in threaded sealing connection with a cock 15, the threaded through hole is communicated with a central counter bore of the rotating head 3, and when the central counter bore of the rotating head 3 is blocked, the cock 15 is opened and is cleaned through tools and purging.
Through bolted seal connection between gland 9 and the body 1, above bearing 10 upper portion is equipped with dust ring 13 between the hole of rotatory head 3 and body 1, sealing connection between gland 9 and the body 1, and liquid pressure can not transmit bearing 10 position, sets up dust ring 13 and can prevent that liquid and impurity from getting into bearing 10 position and causing bearing 10 jamming.
Claims (4)
1. The utility model provides an anticreep formula sleeve pipe scale removal rifle, includes body (1), its characterized in that: the upper part of the body (1) is provided with an upper internal thread connector (2), the body (1) is connected with a rotating head (3) through a gland (9), an upper bearing (10), a lower bearing (10), a spacer bush (11) and a shaft retainer ring (12), the lower part of the rotating head (3) is a conical head, the conical head is provided with uniformly distributed threaded holes, the threaded holes in the conical head are connected with a nozzle (5) in an internal thread manner, the threaded holes in the conical head are communicated with a central counter bore of the rotating head (3), and a hollow helical blade (16) is fixedly connected in the central counter bore of the rotating head (3);
open the bar groove that has the equipartition on the excircle of first (3) lower part, bar inslot is equipped with scraper (6), scraper (6) bottom is equipped with cylinder (7), cylinder (7) outside cover has spring (8), spring (8) are located between the bar groove of scraper (6) bottom and rotating head (3), there is the step in scraper (6) middle part, fixed plate (4) are through bolt fixed connection rotating head (3), press simultaneously on the both sides step of scraper (6).
2. The anti-run-off sleeve descaling gun according to claim 1, wherein: the bottom of the outer edge of the scraper (6) is provided with a chamfer (14).
3. The anti-run-off sleeve descaling gun according to claim 1, wherein: the bottom of the rotating head (3) is provided with a threaded through hole and a threaded sealing connection cock (15), and the threaded through hole is communicated with a central counter bore of the rotating head (3).
4. The anti-run-off sleeve descaling gun according to claim 1, wherein: the gland (9) is connected with the body (1) through a bolt sealing ring, and a dustproof ring (13) is arranged between the inner holes of the rotating head (3) and the body (1) on the upper part of the bearing (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022983571.5U CN213838587U (en) | 2020-12-11 | 2020-12-11 | Anti-drop sleeve descaling gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022983571.5U CN213838587U (en) | 2020-12-11 | 2020-12-11 | Anti-drop sleeve descaling gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213838587U true CN213838587U (en) | 2021-07-30 |
Family
ID=76998095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022983571.5U Active CN213838587U (en) | 2020-12-11 | 2020-12-11 | Anti-drop sleeve descaling gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213838587U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115387758A (en) * | 2022-08-20 | 2022-11-25 | 西南石油大学 | Shaft wax removal and descaling device and operation method |
| CN115467645A (en) * | 2022-11-14 | 2022-12-13 | 北京汉诺威自控技术有限公司 | Blockage removing and oil increasing device |
-
2020
- 2020-12-11 CN CN202022983571.5U patent/CN213838587U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115387758A (en) * | 2022-08-20 | 2022-11-25 | 西南石油大学 | Shaft wax removal and descaling device and operation method |
| CN115387758B (en) * | 2022-08-20 | 2023-04-21 | 西南石油大学 | Paraffin removal and scale removal device for shaft and operation method |
| CN115467645A (en) * | 2022-11-14 | 2022-12-13 | 北京汉诺威自控技术有限公司 | Blockage removing and oil increasing device |
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