CN204283372U - A kind of cased well sand blasting perforator - Google Patents
A kind of cased well sand blasting perforator Download PDFInfo
- Publication number
- CN204283372U CN204283372U CN201420690692.2U CN201420690692U CN204283372U CN 204283372 U CN204283372 U CN 204283372U CN 201420690692 U CN201420690692 U CN 201420690692U CN 204283372 U CN204283372 U CN 204283372U
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- pressure cap
- nozzle
- cover sheet
- sand blasting
- ejector body
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Abstract
The utility model discloses a kind of cased well sand blasting perforator; it comprises ejector body; described ejector body outer wall is provided with multiple plane; multiple pressure cap groove is separated with between in each plane of sandblaster body; pressure cap is provided with in pressure cap groove; sheathed nozzle in pressure cap; the flowing hole communicated with nozzle bore is provided with in the bottom of each pressure cap groove; in each plane, correspondence is fixedly installed cover sheet; pressure cap and nozzle location are fixed by described cover sheet, and on each cover sheet, corresponding nozzle hole is provided with circular hole.Effect acquired by the utility model is: under the protection of cover sheet, make ejector body not spatter erosion by directly returning of high speed sand-laden fluid body; effectively protect being threaded of pressure cap and ejector body; under the duplicate protection of pressure cap and cover sheet, nozzle can not come off, and can meet the requirement once entering well repeatedly abrasive perforating.
Description
Technical field
The utility model relates to a kind of petroleum gas field Oil/gas Well stratum measure downhole tool, particularly relates to a kind of cased well sand blasting perforator.
Background technology
Hydraulic sand blasting fracturing technique integrates hydraulic jet perforation and waterpower sand fracturing, can be quicker, accurate and effective measures to reform is carried out to cased well, be widely used at present.As the key of hydraulic sand blasting fracturing technique, the subject matter that existing sand blasting perforator exists is, the easy erosion of ejector body damages, and nozzle easily comes off.The patent No. is a kind of horizontal well perforation frac-sand jet disclosed in 201120455651.1, be made up of ejector body, nozzle, protective sheet, the mode of inlaying protective sheet outside nozzle is taked to strengthen abrasion resistance, because protective sheet cannot avoid high speed sand-laden fluid body to spatter erosion to returning of ejector body completely, and take mode that is bonding or setting-in all can not remain firm, so still there is the risk that this bulk damage and nozzle come off.The patent No. is a kind of nozzle-built-in hydraulic jet disclosed in 201120078839.9, be made up of ejector body and nozzle, outer nozzle wall is designed to the conical surface identical with the through hole tapering on body tube wall, and be arranged in body through-holes, exist equally ejector body easily by high speed sand-laden fluid body return spatter erosion damage, the caducous risk of nozzle.
Utility model content
Technical problem to be solved in the utility model is that the deficiency existed for above-mentioned prior art provides a kind of available protecting ejector body, prevents nozzle from coming off, the cased well sand blasting perforator that area of passage is large.
The technical scheme that the utility model adopts is: a kind of cased well sand blasting perforator, it comprises ejector body, it is characterized in that: described ejector body outer wall is provided with multiple plane, each plane of sandblaster body is provided with multiple pressure cap groove, pressure cap is provided with in pressure cap groove, sheathed nozzle in pressure cap, the flowing hole communicated with nozzle bore is provided with in the bottom of each pressure cap groove, in each plane, corresponding nozzle is fixedly installed cover sheet, pressure cap and nozzle location are fixed by described cover sheet, on each cover sheet, corresponding nozzle hole is provided with circular hole.
By technique scheme, described pressure cap is the convex cylindrical shape that front end is little, rear end is large, arranges nozzle in the rear end of described pressure cap, and front end embeds in the circular hole on cover sheet, and described nozzle communicates with pressure cap front end endoporus.
By technique scheme, described pressure cap is threaded with pressure cap groove by screw thread.
By technique scheme, the front end endoporus of described pressure cap is hexagonal hole.
By technique scheme, ejector body outer wall is provided with vertically and organizes nozzle more, the nozzle that often group nozzle is arranged by two subtends forms, and in laying of staggering between adjacent nozzle group, each cover sheet corresponding nozzle is laid.
By technique scheme, in 90 degree of vertical runs between adjacent nozzle group.
By technique scheme, be circumferentially evenly provided with four planes in direction at the outer wall of described ejector body.
By technique scheme, the platypelloid type cover plate that described cover sheet is made up of high-strength alloy, each plane of ejector body is provided with the deep gouge installing cover sheet, and the two ends of described cover sheet are all fastened in ejector body by trip bolt.
Beneficial effect acquired by the utility model is:
1, under the protection of cover sheet, make ejector body not spatter erosion by directly returning of high speed sand-laden fluid body; effectively protect being threaded of pressure cap and ejector body; under the duplicate protection of pressure cap and cover sheet, nozzle can not come off, and can meet the requirement once entering well repeatedly abrasive perforating;
2, ejector body exterior is processed with multiple plane, reduces the sectional area of ejector body, namely increases the area of passage of sand blasting perforator in sleeve pipe, and abrasive perforating and annular fracturing integral process are more easily implemented.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of the present utility model.
Fig. 2 is the structural representation of ejector body.
Fig. 3 is the A-A sectional view of Fig. 2.
Fig. 4 is the B-B sectional view of Fig. 2.
Fig. 5 is the structural representation after pressure cap amplifies.
Fig. 6 is the structural representation after nozzle amplifies.
Accompanying drawing number is: 1, ejector body, 2, nozzle, 3, pressure cap, 4, cover sheet, 5, trip bolt.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in figures 1 to 6, a kind of cased well sand blasting perforator that the present embodiment provides, the platypelloid type cover plate cover sheet 4 that it comprises ejector body 1 and is made up of high-strength alloy, 4 planes are circumferentially evenly provided with at described ejector body 1 outer wall, arc transition is passed through between adjacent plane, each plane of sandblaster body is provided with multiple union cap (UC) groove, be provided with in pressure cap groove and make pressure cap 3 by high-strength alloy, described pressure cap 3 is little in front end, the convex cylindrical shape that rear end is large, sheathed nozzle 2 in the rear end of pressure cap 3, simultaneously, the rear end outer wall of pressure cap 3 is threaded with pressure cap groove.At each nozzle 2 place, correspondence arranges cover sheet 4; wherein; cover sheet 4 correspondence is installed in the deep gouge of processing in ejector body 1; each cover sheet 4 corresponding nozzle place is provided with circular hole; the front end of described pressure cap 3 embeds in the circular hole on cover sheet; thus make cover sheet 4 locate fixing by pressure cap 3 and nozzle 2; the flowing hole communicated with nozzle bore is provided with in the bottom of each pressure cap groove; described nozzle 2 communicates with pressure cap 3 front end endoporus, and the two ends of described cover sheet 4 are all fastened in ejector body 1 by trip bolt 5.
In the utility model, for the ease of processing and assembling, the front end endoporus of described pressure cap 3 is hexagonal hole.
In the utility model, ejector body 1 outer wall being provided with vertically and organizing nozzle more, often organize the nozzle 2 that arranged by two subtends of nozzle and form, is that 90 degree of vertical runs stagger laying between adjacent nozzle group, each cover sheet corresponding nozzle and arranging.
When constructing at the scene, perforating fluid can be completed by the internal channel of ejector body 1 and flowing hole and carry out perforation to sleeve pipe after nozzle 2 accelerates, after completing perforation, the mode formation that can add measure liquid by adding measure liquid or oil pipe annular space in oil pipe carries out measures to reform, because cover sheet 4 and pressure cap 3 all adopt high-strength alloy to make, therefore can stop that perforating fluid returns from internal surface of sleeve pipe reflects back ejector body 1 or the externally threaded damage of pressure cap 3, make nozzle 2 can keep fixing for more time, be conducive to once entering well and complete repeatedly sandblasting and penetrate; In addition because ejector body exterior is processed with multiple plane, reduce the sectional area of ejector body, namely increase the area of passage of sand blasting perforator in sleeve pipe, abrasive perforating and annular fracturing integral process are more easily implemented.
Claims (8)
1. a cased well sand blasting perforator; it comprises ejector body; it is characterized in that: described ejector body outer wall is provided with multiple plane; each plane of sandblaster body is provided with multiple pressure cap groove; pressure cap is provided with in pressure cap groove; sheathed nozzle in pressure cap; the flowing hole communicated with nozzle bore is provided with in the bottom of each pressure cap groove; in each plane, corresponding nozzle is fixedly installed cover sheet; pressure cap and nozzle location are fixed by described cover sheet, and on each cover sheet, corresponding nozzle hole is provided with circular hole.
2. a kind of cased well sand blasting perforator according to claim 1; it is characterized in that described pressure cap is the convex cylindrical shape that front end is little, rear end is large; arrange nozzle in the rear end of described pressure cap, front end embeds in the circular hole on cover sheet, and described nozzle bore communicates with pressure cap front end endoporus.
3. a kind of cased well sand blasting perforator according to claim 1 and 2, is characterized in that described pressure cap is threaded with pressure cap groove by screw thread.
4. a kind of cased well sand blasting perforator according to claim 3, is characterized in that the front end endoporus of described pressure cap is hexagonal hole.
5. a kind of cased well sand blasting perforator according to claim 1 and 2; it is characterized in that being provided with vertically on ejector body outer wall organizing nozzle more; the nozzle that often group nozzle is arranged by two subtends forms, and in laying of staggering between adjacent nozzle group, each cover sheet corresponding nozzle is laid.
6. a kind of cased well sand blasting perforator according to claim 5, is characterized in that between adjacent nozzle group in 90 degree of vertical runs.
7. a kind of cased well sand blasting perforator according to claim 6, is characterized in that circumferentially evenly being provided with four planes in direction at the outer wall of described ejector body.
8. a kind of cased well sand blasting perforator according to claim 1 and 2; it is characterized in that the platypelloid type cover plate that described cover sheet is made up of high-strength alloy; each plane of ejector body is provided with the deep gouge installing cover sheet, and the two ends of described cover sheet are all fastened in ejector body by trip bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420690692.2U CN204283372U (en) | 2014-11-18 | 2014-11-18 | A kind of cased well sand blasting perforator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420690692.2U CN204283372U (en) | 2014-11-18 | 2014-11-18 | A kind of cased well sand blasting perforator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204283372U true CN204283372U (en) | 2015-04-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420690692.2U Active CN204283372U (en) | 2014-11-18 | 2014-11-18 | A kind of cased well sand blasting perforator |
Country Status (1)
| Country | Link |
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| CN (1) | CN204283372U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382112A (en) * | 2016-11-04 | 2017-02-08 | 中国石油天然气股份有限公司 | Large-scale anti-splashing sand sprayer for oil pipe fracturing |
-
2014
- 2014-11-18 CN CN201420690692.2U patent/CN204283372U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382112A (en) * | 2016-11-04 | 2017-02-08 | 中国石油天然气股份有限公司 | Large-scale anti-splashing sand sprayer for oil pipe fracturing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 430035 Hubei city in Wuhan province two Qiaokou Gutian Road No. 37 HSBC Nanniwan Avenue headquarters block fifth B Patentee after: PETROLEUM ENGINEERING TECHNOLOGY Research Institute OF HANJIANG OIL FIELD BRANCH SINOPEC Address before: 430035 Hubei city in Wuhan province two Qiaokou Gutian Road No. 37 HSBC Nanniwan Avenue headquarters block fifth B Patentee before: OIL PRODUCTION TECHNOLOGY Research Institute OF JIANGHAN OILFIELD COMPANY SINOPEC |
|
| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200902 Address after: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Co-patentee after: PETROLEUM ENGINEERING TECHNOLOGY Research Institute OF HANJIANG OIL FIELD BRANCH SINOPEC Patentee after: China Petroleum & Chemical Corp. Address before: 430035 Hubei city in Wuhan province two Qiaokou Gutian Road No. 37 HSBC Nanniwan Avenue headquarters block fifth B Patentee before: PETROLEUM ENGINEERING TECHNOLOGY Research Institute OF HANJIANG OIL FIELD BRANCH SINOPEC |
|
| TR01 | Transfer of patent right |