CN202810806U - Coaxial radial perforator for oil-gas wells - Google Patents
Coaxial radial perforator for oil-gas wells Download PDFInfo
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- CN202810806U CN202810806U CN 201220357291 CN201220357291U CN202810806U CN 202810806 U CN202810806 U CN 202810806U CN 201220357291 CN201220357291 CN 201220357291 CN 201220357291 U CN201220357291 U CN 201220357291U CN 202810806 U CN202810806 U CN 202810806U
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- support frame
- perforator
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- detonating fuse
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Abstract
The utility model discloses a coaxial radial perforator for oil-gas wells. The coaxial radial perforator for oil-gas wells comprises a support, perforating charges and a detonating fuse, the perforating charges are coaxially arranged on the support radially, the support comprises an outer support and an inner support arranged in the outer support, the outer support and the inner support are arranged coaxially, and the detonating fuse is arranged at the center axis of the support. The coaxial radial perforating charges are uniformly distributed on the same axial surface in the perforator, so that multiple fluid passages are formed on the same plane of the same well at one step. Detonating performance is improved owing to the coaxility of the detonating fuse.
Description
Technical field
The utility model relates to a kind of Oil/gas Well with coaxial radially perforator, mainly is applicable to exploration and development perforating oil gas well completion field.
Background technology
The importance of low permeability reservoir in oil-gas exploration is day by day deep, how to reduce one of broken key that presses to the raising production capacity in the follow-up fracturing technology, is the important channel of dealing with problems and rationally increase Perforation Density.At the initial stage of adopting perforating bullet perforation completion, Kong Mi is generally 16 hole/rice, afterwards along with the progress of oil exploitation technology, Perforation Density and penetration depth and piercing aperture play an important role to oil-gas mining, simultaneously oil exploitation efficient is also had higher requirement, the more perforator of Gao Kongmi that so just begins one's study is progress from 16 hole/rice to 20 hole/rice, has effectively improved oil, gas extraction rate.Yet from 20 hole/rice to 40 hole/rice, but passed through very long process, because, along with the close increase in perforator hole, perforating bullet is in the moment of blast perforating, the shock wave that a launch hole bullet that explodes first produces can impact the second launch hole bullet of after-explosion, and this impact is referred to as to disturb between bullet.Interference can cause the perforation of perforating bullet on gun barrel and sleeve pipe to become ellipse between bullet, and wears deeply and can reduce, and along with the increase of annoyance level between bullet, the piercing aperture of perforating bullet and penetration depth can descend by straight line, when serious, can't normally form jet.
In order to address the above problem, China Patent No. " 200920243437.2 " discloses a kind of Oil/gas Well with the close deep penetration perforator in high hole, open day is on 07 21st, 2010, comprise perforating gun, gun barrel at perforating gun is provided with blind hole, be distributed with 50-60 blind hole on every meter gun barrel, the external diameter of gun barrel is Φ 159mm-Φ 178mm, and internal diameter is Φ 133mm-Φ 155mm.This technology penetration depth is darker, and piercing aperture is larger, and the Kong Mi of perforation is higher, and can avoid disturbing between bullet.
Though although existing high shot density perforator can realize than Gao Kongmi that can only go into the well by repeatedly rising also for the same layer position of same Oil/gas Well at present, construction operation is finished repeatedly, inevitably cause the Oil/gas Well construction period to lengthen, cost increases.
Summary of the invention
The purpose of this utility model is to overcome the problems referred to above that existing perforator exists, provide a kind of Oil/gas Well with coaxial radially perforator, the utility model is realized the uniform multiple coaxial radially perforating bullet of an axial plane in the perforating gun, in the inferior a plurality of fluid passages of the disposable formation of same layer bit plane of same well, and the sharing nature that detonating fuse forms improves explosion transfer performance.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of Oil/gas Well is with coaxial radially perforator, it is characterized in that: comprise bracing frame, perforating bullet and detonating fuse, perforating bullet is coaxial radially to be arranged on the bracing frame, support frame as described above comprises outer support frame and is arranged on the interior inner support frame of outer support frame, and outer support frame and inner support frame are coaxial setting, and detonating fuse is arranged on the central axis of bracing frame.
Perpendicular to axial line a plurality of planes that distribute, the multi-openings bullet on each plane is 360 °/N and evenly distributes on the support frame as described above, and angle is 180 °/N between the adjacent plane, and wherein, N is every plane perforating bullet quantity.
Multi-openings bullet cooperation on described each plane is fixed on detonating fuse on the central axis of bracing frame, and detonating fuse cooperates with the propagation of explosion hole of perforating bullet.
Employing the utility model has the advantage of:
One, in the utility model, support frame as described above comprises outer support frame and is arranged on the interior inner support frame of outer support frame, and outer support frame and inner support frame are coaxial setting, detonating fuse is arranged on the central axis of bracing frame, utilize plane of dual-gripper frame realization to assemble multiple perforating bullet structure, realize that with the bracing frame that guarantees the height alignment N sends out the radially installation of perforating bullet coaxial with fixing, detonating fuse passes along the bracing frame axial line simultaneously, can realize the uniform multiple coaxial radially perforating bullet of an axial plane in the perforating gun, thereby realized in the inferior a plurality of fluid passages of the disposable formation of same layer bit plane of same well, also strengthened the injection area of follow-up pressure break, Kong Mike is higher than 60 hole/rice, avoids the repeatedly perforation construction operation repeatedly of same Oil/gas Well same layer position.
Two, in the utility model, on the support frame as described above perpendicular to axial line a plurality of planes that distribute, the multi-openings bullet on each plane is 360 °/N and evenly distributes, angle is 180 °/N between the adjacent plane, and wherein, N is every plane perforating bullet quantity, adopt this mode firm in structure, on-the-spot fitting operation is simple, good stability, and alignment is high.
Three, in the utility model, multi-openings bullet cooperation on described each plane is fixed on detonating fuse on the central axis of bracing frame, and detonating fuse cooperates with the propagation of explosion hole of perforating bullet, detonating fuse is tightened up by multiple coaxial radially perforating bullet in the perforator, it is more convenient that more original high shot density perforator is installed, and have sharing nature concurrently, the sharing nature that the multi-openings bullet shares a detonating fuse formation has improved again explosion transfer performance.
Description of drawings
Fig. 1 is the utility model structural representation
Be labeled as among the figure: 1, perforating bullet; 2, outer support frame; 3, inner support frame; 4, detonating fuse.
The specific embodiment
A kind of Oil/gas Well is with coaxial radially perforator, comprise bracing frame, perforating bullet 1 and detonating fuse 4, perforating bullet 1 is coaxial radially to be arranged on the bracing frame, support frame as described above comprises outer support frame 2 and the inner support frame 3 that is arranged in the outer support frame 2, and outer support frame 2 and inner support frame 3 are coaxial setting, and detonating fuse 4 is arranged on the central axis of bracing frame.
Preferred embodiment of the present utility model is, perpendicular to axial line a plurality of planes that distribute, the multi-openings bullet 1 on each plane is 360 °/N and evenly distributes on the support frame as described above, and angle is 180 °/N between the adjacent plane, and wherein, N is every plane perforating bullet quantity.As shown in the figure, be provided with three perforating bullets 1 on the same plane, this is not limited to three for illustrating.
Another preferred embodiment of the present utility model is, multi-openings bullet 1 cooperation on described each plane is fixed on detonating fuse 4 on the central axis of bracing frame, after that is to say that the multi-openings bullet is installed, form an installing hole at the propagation of explosion nose end, this mounting hole site is on the central axis of bracing frame, and detonating fuse 4 cooperates with the propagation of explosion hole of perforating bullet 1.
Installation process of the present utility model is: outer support frame 2 and inner support frame 3 are fixedly assembled under the highly coaxial prerequisite of maintenance, detonating fuse 4 passes from the bracing frame center, coaxial radially perforating bullet 1 is installed one by one again, detonating fuse 4 cooperates with the propagation of explosion hole of perforating bullet, utilizes fixedly detonating fuse 4 of a plurality of coaxial radially perforating bullets 1.
The utility model in use, by a detonating fuse 4 perforating bullet 1 on a plurality of planes that distribute perpendicular to axial line on the bracing frame is ignited, behind the perforation, realize a plurality of gas stream circulation passage at the Oil/gas Well axial plane, also strengthen the injection area of follow-up pressure break.
Claims (3)
1. an Oil/gas Well is with coaxial radially perforator, it is characterized in that: comprise bracing frame, perforating bullet (1) and detonating fuse (4), perforating bullet (1) is coaxial radially to be arranged on the bracing frame, support frame as described above comprises outer support frame (2) and is arranged on the interior inner support frame (3) of outer support frame (2), and outer support frame (2) and inner support frame (3) are coaxial setting, and detonating fuse (4) is arranged on the central axis of bracing frame.
2. Oil/gas Well according to claim 1 is with coaxial radially perforator, it is characterized in that: on the support frame as described above perpendicular to axial line a plurality of planes that distribute, the multi-openings bullet (1) on each plane is 360 °/N and evenly distributes, angle is 180 °/N between the adjacent plane, wherein, N is every plane perforating bullet quantity.
3. Oil/gas Well according to claim 2 is with coaxial radially perforator, it is characterized in that: multi-openings bullet (1) cooperation on described each plane is fixed on detonating fuse (4) on the central axis of bracing frame, and detonating fuse (4) cooperates with the propagation of explosion hole of perforating bullet (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220357291 CN202810806U (en) | 2012-07-23 | 2012-07-23 | Coaxial radial perforator for oil-gas wells |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220357291 CN202810806U (en) | 2012-07-23 | 2012-07-23 | Coaxial radial perforator for oil-gas wells |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202810806U true CN202810806U (en) | 2013-03-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220357291 Expired - Fee Related CN202810806U (en) | 2012-07-23 | 2012-07-23 | Coaxial radial perforator for oil-gas wells |
Country Status (1)
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| CN (1) | CN202810806U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11480038B2 (en) | 2019-12-17 | 2022-10-25 | DynaEnergetics Europe GmbH | Modular perforating gun system |
| US11499401B2 (en) | 2021-02-04 | 2022-11-15 | DynaEnergetics Europe GmbH | Perforating gun assembly with performance optimized shaped charge load |
| US11525344B2 (en) | 2018-07-17 | 2022-12-13 | DynaEnergetics Europe GmbH | Perforating gun module with monolithic shaped charge positioning device |
| USD981345S1 (en) | 2020-11-12 | 2023-03-21 | DynaEnergetics Europe GmbH | Shaped charge casing |
| US11661824B2 (en) | 2018-05-31 | 2023-05-30 | DynaEnergetics Europe GmbH | Autonomous perforating drone |
| US11661823B2 (en) | 2013-07-18 | 2023-05-30 | DynaEnergetics Europe GmbH | Perforating gun assembly and wellbore tool string with tandem seal adapter |
| US11753909B2 (en) | 2018-04-06 | 2023-09-12 | DynaEnergetics Europe GmbH | Perforating gun system and method of use |
| US11795791B2 (en) | 2021-02-04 | 2023-10-24 | DynaEnergetics Europe GmbH | Perforating gun assembly with performance optimized shaped charge load |
| USD1028181S1 (en) | 2019-04-01 | 2024-05-21 | DynaEnergetics Europe GmbH | Perforating gun assembly |
-
2012
- 2012-07-23 CN CN 201220357291 patent/CN202810806U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11661823B2 (en) | 2013-07-18 | 2023-05-30 | DynaEnergetics Europe GmbH | Perforating gun assembly and wellbore tool string with tandem seal adapter |
| US11753909B2 (en) | 2018-04-06 | 2023-09-12 | DynaEnergetics Europe GmbH | Perforating gun system and method of use |
| US11661824B2 (en) | 2018-05-31 | 2023-05-30 | DynaEnergetics Europe GmbH | Autonomous perforating drone |
| US11525344B2 (en) | 2018-07-17 | 2022-12-13 | DynaEnergetics Europe GmbH | Perforating gun module with monolithic shaped charge positioning device |
| USD1028181S1 (en) | 2019-04-01 | 2024-05-21 | DynaEnergetics Europe GmbH | Perforating gun assembly |
| US11480038B2 (en) | 2019-12-17 | 2022-10-25 | DynaEnergetics Europe GmbH | Modular perforating gun system |
| USD981345S1 (en) | 2020-11-12 | 2023-03-21 | DynaEnergetics Europe GmbH | Shaped charge casing |
| US11499401B2 (en) | 2021-02-04 | 2022-11-15 | DynaEnergetics Europe GmbH | Perforating gun assembly with performance optimized shaped charge load |
| US11795791B2 (en) | 2021-02-04 | 2023-10-24 | DynaEnergetics Europe GmbH | Perforating gun assembly with performance optimized shaped charge load |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: SICHUAN PETROLEUM PERFORATING EQUIPMENT CO., LTD. Assignor: Well Logging Company of CNPC Chuanqing Drilling Engineering Co., Ltd. Contract record no.: 2013500000051 Denomination of utility model: Coaxial radial perforator for oil-gas wells Granted publication date: 20130320 License type: Common License Record date: 20130712 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20170723 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |