CN202417450U - Hydraulic sand blasting perforator - Google Patents
Hydraulic sand blasting perforator Download PDFInfo
- Publication number
- CN202417450U CN202417450U CN2012200099795U CN201220009979U CN202417450U CN 202417450 U CN202417450 U CN 202417450U CN 2012200099795 U CN2012200099795 U CN 2012200099795U CN 201220009979 U CN201220009979 U CN 201220009979U CN 202417450 U CN202417450 U CN 202417450U
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- China
- Prior art keywords
- perforator
- positioning sleeve
- nozzle
- sealing positioning
- nozzles
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- Expired - Lifetime
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Abstract
The utility model relates to a hydraulic sand blasting perforator in the field of oil production of an oil field, and mainly solves the problems of short service life and high production cost of the existing perforator. The hydraulic sand blasting perforator comprises nozzles and a pipe column-shaped perforator body, wherein the nozzles are arranged in a sealing positioning sleeve; the sealing positioning sleeve is detachably fixed on the pipe column-shaped wall of the perforator body; and the nozzles are uniformly distributed in a radial direction and alternately distributed in an axial direction on the perforator body. According to the perforator, since the mounting mode and distribution mode of the nozzles on the body are changed, the service life of the whole perforator is prolonged, and the production cost is reduced.
Description
Technical field
The utility model relates in the oil recovery field, oil field, destination layer position, producing well down-hole is carried out the sand jet perforator of hydraulic jet perforation.
Background technology
Hydraulic jet perforation is to carry high pressure to contain the sand air-flow through ground to the shaft bottom, and the cement layer that wears pipe and well cementation is penetrated in the destination layer position in the down-hole, and penetrates the stratum certain depth, forms gas channel.Because used sand jet perforator generally adopts nozzle directly to be fixed on the tubing string at present, in the operation of abrasive perforating, under the erosion of high speed sand-laden fluid; Nozzle bore will soon become greatly, and pump group ability can not increase thereupon, and perforation pressure will not reach the range requirement; In order to guarantee perforation pressure and range, will trip out perforator from the down-hole, change simultaneously with the tubing string nozzle; Make the perforator whole service life short, inefficiency, and cost of production is really increasing.
The utility model content:
In order to prolong the application life of perforator, reduce the cost of production of perforating job, the utility model provides a kind of sand jet perforator.This perforator changes mounting means and the distribution form of nozzle on the perforator body on the basis of existing perforator, thereby has prolonged the application life of perforator, reduces production costs.
The technical scheme of the utility model is: a kind of sand jet perforator; The perforator body that comprises nozzle and tubing string shape, wherein, this perforator also comprises the sealing positioning sleeve; Described nozzle places in the sealing positioning sleeve, on the dismountable pipe cylindrical wall that is fixed on the perforator body of sealing positioning sleeve; And nozzle radial equipartition and axially staggered branch on the perforator body.
In addition, be equipped with vibration pad between above-mentioned nozzle and sealing positioning sleeve; Above-mentioned sealing positioning sleeve, vibration pad and nozzle have coaxial aperture.
The beneficial effect of the utility model is: owing to adopt above-mentioned technical scheme; Nozzle is placed in the positioning sleeve, and positioning sleeve is threaded on the tubing string wall, when nozzle damages; It is new to unload nozzle exchange from the sealing positioning sleeve; Utilize original tubing string to get final product, thereby prolonged the service life of tubing string, reduce production costs; This outer nozzle radial equipartition and axially staggered branch on the perforator body, selectable installation nozzle or spray orifice plug are adjusted based on the needs of perforation layer position and quantity, have increased the frequency of usage of perforator, further reduce production costs.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is an A-A profile among Fig. 1.
1-perforator body among the figure, 2-seals positioning sleeve, 3-sealing ring one, 4-nozzle, 5-vibration pad, 6-sealing ring two, 7-spray orifice plug.
The specific embodiment
Be described further this use is novel below in conjunction with accompanying drawing:
By Fig. 1 and shown in Figure 2, this sand jet perforator, comprise tubing string shape perforator body 1, the sealing positioning sleeve 2, nozzle 4 and vibration pad 5; Wherein, described nozzle 4 places in the sealing positioning sleeve 2, adopts matched in clearance; By sealing ring one 3 sealings; When nozzle damages, can in sealing positioning sleeve 2, unload nozzle and change, avoid because the damage of nozzle causes scrapping of whole perforator; Sealing positioning sleeve 2 is threaded on the pipe cylindrical wall that is fixed on perforator body 1 and by sealing ring 26 sealings; Nozzle 4 and 2 of positioning sleeves of sealing are equipped with vibration pad 5; Play locking and effect vibration damping; And above-mentioned sealing positioning sleeve 2, vibration pad 5 and nozzle 4 have coaxial aperture, guarantee to contain smooth and easy that sand jet liquid sprays; Nozzle 4 radial equipartition and axially being interspersed on perforator body 1, adjacent two rounds are radially by 90
0Or 180
0Distribute, adjust, in the centre bore of the pairing sealing positioning sleeve 2 in non-perforation layer position, spray orifice plug 7 can be installed, increased the frequency of usage of perforator, further reduce production costs according to the needs of perforation layer position and quantity.
Claims (3)
1. sand jet perforator; The perforator body (1) that comprises nozzle (4) and tubing string shape; It is characterized in that: this perforator also comprises sealing positioning sleeve (2); Described nozzle (4) places in sealing positioning sleeve (2), and sealing positioning sleeve (2) is dismountable to be fixed on the pipe cylindrical wall of perforator body (1); And nozzle (4) is gone up radial equipartition and axially is interspersed at perforator body (1).
2. sand jet perforator according to claim 1 is characterized in that: be equipped with vibration pad (5) between above-mentioned nozzle (4) and sealing positioning sleeve (2).
3. sand jet perforator according to claim 1 is characterized in that: above-mentioned sealing positioning sleeve (2), vibration pad (5) and nozzle (4) have coaxial aperture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200099795U CN202417450U (en) | 2012-01-11 | 2012-01-11 | Hydraulic sand blasting perforator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200099795U CN202417450U (en) | 2012-01-11 | 2012-01-11 | Hydraulic sand blasting perforator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202417450U true CN202417450U (en) | 2012-09-05 |
Family
ID=46742223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200099795U Expired - Lifetime CN202417450U (en) | 2012-01-11 | 2012-01-11 | Hydraulic sand blasting perforator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202417450U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107489401A (en) * | 2017-09-12 | 2017-12-19 | 大庆信志合科技有限责任公司 | A kind of process of water-jet sleeve pipe apparatus for eliminating sludge and the application device |
| CN110608025A (en) * | 2018-06-15 | 2019-12-24 | 中石化石油工程技术服务有限公司 | Pulse type spraying sand adding tool |
-
2012
- 2012-01-11 CN CN2012200099795U patent/CN202417450U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107489401A (en) * | 2017-09-12 | 2017-12-19 | 大庆信志合科技有限责任公司 | A kind of process of water-jet sleeve pipe apparatus for eliminating sludge and the application device |
| CN110608025A (en) * | 2018-06-15 | 2019-12-24 | 中石化石油工程技术服务有限公司 | Pulse type spraying sand adding tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120905 |