CN219061611U

CN219061611U - Underground centrifugal sand removing device for oil well

Info

Publication number: CN219061611U
Application number: CN202223496753.5U
Authority: CN
Inventors: 王力; 宋显风
Original assignee: Panjin Zhanhong Division Industry And Trade Development Co ltd
Current assignee: Panjin Zhanhong Division Industry And Trade Development Co ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-05-23
Anticipated expiration: 2032-12-27

Abstract

The utility model discloses an oil well underground centrifugal sand removing device, which comprises an upper joint and is characterized in that: the utility model discloses a sand removal device, including top connection, first sand removal section of thick bamboo, second sand removal section of thick bamboo, top connection is fixed mounting has a first sand removal section of thick bamboo, first sand removal section of thick bamboo is equipped with fixed mounting's bottom connection, be equipped with first rotatory sand removal ware in the first sand removal section of thick bamboo, be equipped with the rotatory sand removal ware of second in the second sand removal section of thick bamboo, be equipped with the baffle in the connecting section of thick bamboo, be equipped with in the baffle with the communicating sand outlet hole of first rotatory sand removal ware and second sand removal section of thick bamboo, be equipped with in the baffle with the communicating liquid outlet hole of first sand removal section of thick bamboo and second rotatory sand removal ware, screwed connection has the centrum cover on the first sand removal section of thick bamboo, second sand removal section of thick bamboo is equipped with the slips device with centrum cover matched with outward. The underground centrifugal sand removing device for the oil well can be firmly fixed on the wall of a pipeline and is more stable.

Description

Underground centrifugal sand removing device for oil well

Technical Field

The utility model relates to the technical field of oil field underground oil extraction, in particular to an underground centrifugal sand removal device for an oil well.

Background

In the oil field production, mechanical impurities and slurry pollutants remained in a newly produced oil well occur when sand production of an old oil well or the phenomenon of one-time production of sand clamping oil pump electric submersible pump after the old oil well adopts certain sand prevention measures and after the sand washing operation of the oil well. Particularly, with the continuous development of oil fields, the stratum structure is loosened, sand production of the oil wells is serious, sand content in crude oil is increased, the service life of an oil pump is shortened, the pump inspection period of the oil wells is shortened, the maintenance workload of the oil wells is increased, the production cost is increased, the crude oil yield is seriously influenced, and the crude oil recovery ratio is reduced. The prior art comprises the following steps: an oil well underground two-stage centrifugal sand removing device, patent number: CN210637063U, through one-level cyclone sand remover and second grade cyclone sand remover, through two-stage sand removal, extension oil-well pump's life and oil well pump inspection cycle reduce the oil well maintenance work load, reduce manufacturing cost, increase crude oil yield, improve crude oil recovery ratio, but this kind of oil well is doublestage centrifugal sand remover in pit needs to install in the middle of the pipeline in the pit, can not fix on the pipeline wall firmly.

Disclosure of Invention

The utility model aims to solve the technical problem and provide the underground centrifugal sand removing device for the oil well, which can be firmly fixed on the wall of a pipeline and is more stable.

In order to solve the technical problems, the technical scheme provided by the utility model is as follows: the utility model provides an oil well is centrifugal sand removal device in pit, includes the top connection, fixed mounting has first sand removal section of thick bamboo under the top connection, be equipped with fixed mounting's connecting cylinder under the first sand removal section of thick bamboo, the connecting cylinder below is equipped with fixed mounting's second sand removal section of thick bamboo, the second sand removal section of thick bamboo below is equipped with fixed mounting's lower clutch, be equipped with first rotatory sand removal ware in the first sand removal section of thick bamboo, be equipped with the rotatory sand removal ware of second in the second sand removal section of thick bamboo, be equipped with the baffle in the connecting cylinder, be equipped with in the baffle with the communicating sand outlet hole of first rotatory sand removal ware and second sand removal section of thick bamboo, be equipped with centrum cover on the first sand removal section of thick bamboo, second sand removal section of thick bamboo is equipped with centrum cover matched with slips device outward.

As an improvement, the slip device comprises a slip sleeve which is sleeved on the second sand removing cylinder, a cylinder is arranged in the slip sleeve, and a slip is rotationally connected to the cylinder.

As an improvement, a centralizer is arranged between the slip sleeve and the second sand removing cylinder.

As an improvement, a plurality of springs with two ends fixedly connected are arranged between the centralizer and the slips.

As an improvement, a centralizing block fixedly arranged on the slips is arranged between the two springs.

As an improvement, the contact surface between the upper end of the slip and the wall surface is provided with a non-slip protrusion, and the back surface of the contact surface between the upper end of the slip and the wall surface is inclined, and the inclination angle is the same as that of the cone sleeve.

Compared with the prior art, the utility model has the advantages that: the slip device matched with the cone sleeve is arranged outside the second sand removing cylinder and is matched with the cone sleeve in spiral connection with the first sand removing cylinder, the cone sleeve extrudes the slips, the slips are clamped on the wall of the pipeline, the installation is completed, the cone sleeve is rotated, the slips shrink along with the tension of the spring, and the dismantling is completed.

Drawings

FIG. 1 is a schematic diagram of a downhole centrifugal sand removal apparatus for an oil well according to the present utility model.

FIG. 2 is a detailed view of zone A of a downhole centrifugal sand removal apparatus for an oil well according to the present utility model.

As shown in the figure: 1. an upper joint; 2. a first sand removal cylinder; 3. a vertebral body sleeve; 4. a first rotary sand remover; 5. a connecting cylinder; 6. a partition plate; 7. a liquid outlet hole; 8. a sand outlet hole; 9. a second sand removal cylinder; 10. a second rotary desander; 11. a lower joint; 12. a cylinder; 13. a slip; 14. a centralizer; 15. centralizing blocks; 16. a spring; 17. slip sleeve; 18. a non-slip bump.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, an oil well underground centrifugal sand removing device comprises an upper joint 1, a first sand removing cylinder 2 is fixedly installed under the upper joint 1, a fixedly installed connecting cylinder 5 is arranged under the first sand removing cylinder 2, a fixedly installed second sand removing cylinder 9 is arranged under the connecting cylinder 5, a fixedly installed lower joint 11 is arranged under the second sand removing cylinder 9, a first rotary sand removing cylinder 4 is arranged in the first sand removing cylinder 2, a second rotary sand removing cylinder 10 is arranged in the second sand removing cylinder 9, a partition plate 6 is arranged in the connecting cylinder 5, sand outlet holes 8 communicated with the first rotary sand removing cylinder 4 and the second sand removing cylinder 9 are formed in the partition plate 6, liquid outlet holes 7 communicated with the first sand removing cylinder 2 and the second rotary sand removing cylinder 10 are formed in the partition plate 6, cone sleeves 3 are spirally connected on the first sand removing cylinder 2, and slip devices matched with the cone sleeves 3 are arranged outside the second sand removing cylinder 9.

Referring to fig. 2, the slip device comprises a slip sleeve 17, the slip sleeve 17 is sleeved on the second sand removing cylinder 9, a cylinder 12 is arranged in the slip sleeve 17, and a slip 13 is rotatably connected to the cylinder 12. A centralizer 14 is arranged between the slip sleeve 17 and the second sand removing cylinder 9. A plurality of springs 16 with two ends fixedly connected are arranged between the centralizer 14 and the slips 13. A righting block 15 fixedly mounted on the slips 13 is arranged between the two springs 16.

With reference to fig. 1, the contact surface between the upper end of the slip 13 and the wall surface is provided with a non-slip protrusion 18, and the back surface of the contact surface between the upper end of the slip 13 and the wall surface is inclined at the same inclination angle as that of the cone sleeve 3.

In the concrete implementation of the utility model, the cone sleeve 3 is rotated, the cone sleeve 3 moves downwards on the first sand removing cylinder 2, the bottom end of the cone sleeve 3 contacts the slips 13, the slips 13 are extruded outwards and are contacted with the pipeline wall, then the installation can be completed, the cone sleeve 3 is reversely rotated, the cone sleeve 3 moves upwards on the second sand removing cylinder 9, the bottom end of the cone sleeve 3 is separated from the slips 13, and the springs 16 at the rear side of the slips 13 pull the slips 13 back for resetting, so that the disassembly is completed.

The utility model and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the utility model as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present utility model.

Claims

1. The utility model provides an oil well is centrifugal sand removal device in pit, includes top connection (1), its characterized in that: the utility model discloses a sand control device, including top connection (1) and second sand control section of thick bamboo, top connection (1) are fixed mounting has first sand control section of thick bamboo (2), first sand control section of thick bamboo (2) are equipped with fixed mounting's connecting cylinder (5) down, connecting cylinder (5) below is equipped with fixed mounting's second sand control section of thick bamboo (9), second sand control section of thick bamboo (9) are equipped with first rotatory sand control ware (4) down, be equipped with second rotatory sand control ware (10) in second sand control section of thick bamboo (9), be equipped with baffle (6) in connecting cylinder (5), be equipped with in baffle (6) with first rotatory sand control ware (4) and the communicating play sand hole (8) of second sand control section of thick bamboo (9), be equipped with in baffle (6) with first sand control section of thick bamboo (2) and the communicating play liquid hole (7) of second rotatory sand control ware (10), spiral connection has a cone cover (3) on first sand control section of thick bamboo (2), second sand control section of thick bamboo (9) are equipped with the slips (3) that match.

2. A downhole centrifugal desanding device of an oil well as claimed in claim 1, wherein: the slip device comprises a slip sleeve (17), the slip sleeve (17) is sleeved on the second sand removing cylinder (9), a cylinder (12) is arranged in the slip sleeve (17), and a slip (13) is rotatably connected to the cylinder (12).

3. A downhole centrifugal desanding device of an oil well as claimed in claim 2, wherein: a centralizer (14) is arranged between the slip sleeve (17) and the second sand removing cylinder (9).

4. A downhole centrifugal desanding device of an oil well as claimed in claim 3, wherein: a plurality of springs (16) with two ends fixedly connected are arranged between the centralizer (14) and the slips (13).

5. A downhole centrifugal desanding device of an oil well as claimed in claim 4, wherein: a centralizing block (15) fixedly arranged on the slip (13) is arranged between the two springs (16).

6. A downhole centrifugal desanding device of an oil well as claimed in claim 2, wherein: the anti-slip protrusion (18) is arranged on the contact surface between the upper end of the slip (13) and the wall surface, and the inclination angle of the slip (13) is the same as that of the cone sleeve (3).