CN203271694U - Embedded integral type waterpower abrasive blasting perforator - Google Patents
Embedded integral type waterpower abrasive blasting perforator Download PDFInfo
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- CN203271694U CN203271694U CN 201320263020 CN201320263020U CN203271694U CN 203271694 U CN203271694 U CN 203271694U CN 201320263020 CN201320263020 CN 201320263020 CN 201320263020 U CN201320263020 U CN 201320263020U CN 203271694 U CN203271694 U CN 203271694U
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Abstract
The utility model discloses an embedded integral type waterpower abrasive blasting perforator for improving fracturing security and sand feeding scale of the perforator. Spirally-arranged joint blasting holes are formed in the circumferential face of a cylinder of the upper joint of the perforator, a lining is embedded in the upper joint, and spirally-arranged lining blasting holes corresponding to the joint blasting holes are formed in the circumferential face of the lining. The upper joint and the lining are fixed through rotation prevention pins, and the upper joint is connected with a lower joint and sealed through an axial seal ring. All the lining jet nozzles of the perforator are machined and molded after punching is carried out on the lining, the perforator is of a multihole integral type lining structure, the lining is embedded in the cylinder of the upper joint of the perforator and cannot be easily washed out, the lining cannot fall off even though the outer wall of the upper joint is washed out when large-scale sand fracturing is conducted, thus abrasion-resistance performance of the perforator can be enhanced, and effective guarantee is provided for the improvement of the sand feeding scale and developing effects.
Description
Technical field
The utility model relates to a kind of embedded monolithic sand jet perforator, belongs to Oil/gas Well waterpower abrasive perforating fracturing technique field.
Background technology
The hydraulic jet perforation pressure break is to convert the pressure energy of high-pressure fluid to kinetic energy by sand blasting perforator, utilize the high-speed jet that produces to penetrate sleeve-penetrating and cement sheath, form the preforation tunnel of certain diameter and the degree of depth in rock, promote simultaneously the oil jacket annular pressure, when the hole internal pressure surpasses formation fracture pressure, moment presses off the stratum, sets up the effective connection between reservoir and pit shaft.At present, conventional sand jet perforator is split raised type structure, as shown in Figure 1, mainly is comprised of nozzle 1, pressure cap 2 and perforator body 3.Nozzle 1 is split-type structural, needs to pack into from the outside perforator body 3, and passes through pressure cap 2 from external stability.This perforator adds the sand small scale, anti-wear performance is poor, application life is short, and nozzle 1 and body 3 are vulnerable to erosion and damage, and nozzle 1 easily is ejected body 3 or is impacted and falls into body 3, and construction risk is increased, and pressing crack construction can't effectively carry out.
Summary of the invention
The purpose of this utility model is to provide a kind of embedded monolithic sand jet perforator, and it can effectively solve the technical problem that split raised type sand jet perforator exists, improve the sand blasting perforator pressure break safety, add sand scale and pressing crack construction effect.
Concrete technical scheme of the present utility model is as follows:
This perforator top connection cylindrical shell side face is provided with the joint spray orifice that is helical arrangement, is inlaid with lining in top connection; The lining side face is provided with the lining spray orifice corresponding joints spray orifice, that be helical arrangement; Top connection and lining are fixed by the anti-rotation pin; Top connection connects lower contact, and by axial sealing ring sealing.
The all machine-shaping after punching on lining of all lining nozzles of this perforator, integral type lining nested structure for porous, lining is embedded in perforator top connection cylindrical shell and is not vulnerable to erosion, when extensive sand fracturing, even the outer wall of top connection is subject to erosion, lining can not come off yet, thereby can strengthen the anti-wear performance of perforator, for raising adds the sand scale and development effectiveness provides effective guarantee.
Description of drawings
Fig. 1 is conventional sand jet perforator structure schematic diagram.
Fig. 2 is embedded monolithic sand jet perforator structure schematic diagram.
The specific embodiment
With reference to Fig. 2, embodiment of the present utility model is further illustrated:
Embodiment:
This perforator comprises top connection 1, lining 2, anti-rotation pin 3, sealing ring 4 and lower contact 5:
Top connection 1 side face of tubular is provided with two row totally six the joint spray orifices 6 that are helical arrangement, and top connection 1 interior middle part is inlaid with lining 2; Lining 2 side faces are provided with two row corresponding joints spray orifice 6, that be helical arrangement totally six lining spray orifices 7; Top connection 1 is fixing by anti-rotation pin 3 with lining 2; Top connection 1 lower contact 5 that is threaded, and by 4 sealings of circumferential sealing ring.
During on-the-spot the use, the instruments such as this perforator and oil pipe form fracturing string, are lowered into the pressure break interval of interest.During pressure break, this perforator is converted to kinetic energy with the pressure energy of highly pressurised liquid, form fluid at a high speed, penetrate sleeve-penetrating and cement sheath, form the preforation tunnel of certain diameter and the degree of depth in rock, simultaneously, promote the oil jacket annular pressure, moment presses off the stratum when the hole internal pressure surpasses formation fracture pressure, sets up the effective connection between reservoir and pit shaft.
The embedded design of this perforator lining makes it not be vulnerable to erosion, and then has improved anti-wear performance and the application life of perforator.In addition, in extensive sand fracturing, even the top connection body outer wall of perforator is subject to erosion, lining can not come off yet, and has improved the safety of construction and has added the sand scale.
Claims (1)
1. embedded monolithic sand jet perforator is characterized in that:
This perforator top connection (1) cylindrical shell side face is provided with the joint spray orifice (6) that is helical arrangement, is inlaid with lining (2) in top connection (1); Lining (2) side face is provided with that the corresponding joints spray orifice is (6), lining spray orifice that be helical arrangement (7); Top connection (1) is fixing by anti-rotation pin (3) with lining (2); Top connection (1) connects lower contact (5), and is sealed by axial sealing ring (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320263020 CN203271694U (en) | 2013-05-15 | 2013-05-15 | Embedded integral type waterpower abrasive blasting perforator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320263020 CN203271694U (en) | 2013-05-15 | 2013-05-15 | Embedded integral type waterpower abrasive blasting perforator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203271694U true CN203271694U (en) | 2013-11-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320263020 Expired - Fee Related CN203271694U (en) | 2013-05-15 | 2013-05-15 | Embedded integral type waterpower abrasive blasting perforator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203271694U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953317A (en) * | 2014-04-14 | 2014-07-30 | 宝鸡市赛孚石油机械有限公司 | High-reliability hydraulic ejector |
| CN104088615A (en) * | 2014-07-28 | 2014-10-08 | 中国石油化工股份有限公司 | Control valve for sleeve well cementation staged fracturing |
| CN105604527A (en) * | 2016-02-26 | 2016-05-25 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Archimedes double-spiral division type hydraulic ejector |
| CN106321031A (en) * | 2016-09-29 | 2017-01-11 | 西南石油大学 | Integral high-energy hydraulic sand blasting perforator and manufacturing process thereof |
-
2013
- 2013-05-15 CN CN 201320263020 patent/CN203271694U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953317A (en) * | 2014-04-14 | 2014-07-30 | 宝鸡市赛孚石油机械有限公司 | High-reliability hydraulic ejector |
| CN103953317B (en) * | 2014-04-14 | 2017-02-15 | 宝鸡市赛孚石油机械有限公司 | High-reliability hydraulic ejector |
| CN104088615A (en) * | 2014-07-28 | 2014-10-08 | 中国石油化工股份有限公司 | Control valve for sleeve well cementation staged fracturing |
| CN105604527A (en) * | 2016-02-26 | 2016-05-25 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Archimedes double-spiral division type hydraulic ejector |
| CN106321031A (en) * | 2016-09-29 | 2017-01-11 | 西南石油大学 | Integral high-energy hydraulic sand blasting perforator and manufacturing process thereof |
| CN106321031B (en) * | 2016-09-29 | 2019-09-20 | 西南石油大学 | A kind of monoblock type high energy sand jet perforator and its manufacturing process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 |