CN204082108U - Double-deck shell case petroleum perforation charge - Google Patents
Double-deck shell case petroleum perforation charge Download PDFInfo
- Publication number
- CN204082108U CN204082108U CN201420533731.8U CN201420533731U CN204082108U CN 204082108 U CN204082108 U CN 204082108U CN 201420533731 U CN201420533731 U CN 201420533731U CN 204082108 U CN204082108 U CN 204082108U
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- CN
- China
- Prior art keywords
- shell case
- internal layer
- layer shell
- charge
- cavity liner
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- Expired - Fee Related
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Abstract
The utility model is a kind of double-deck shell case petroleum perforation charge, comprise cavity liner, main blasting charge and be close to the outer shell case and internal layer shell case that arrange, outer shell case top is provided with detonating fuse, cavity liner is located in internal layer shell case, main blasting charge is loaded between internal layer shell case and cavity liner, and main blasting charge top connects with detonating fuse; Wherein, described outer shell case is made by metal material, and internal layer shell case is made by low blasting speed height insensitive energetic material.The utility model perforating bullet not only has the ability of perforation but also has the effect of pressure break, belongs to a kind of composite gun perforation, can be used alone, and various composite gun perforation also can be coordinated to use together, thus reach the effect of pressure break and clean perforation tunnel.
Description
Technical field
The utility model relates to a kind of well logging perforation device that oil field uses, specifically a kind of double-deck shell case petroleum perforation charge.
Background technology
At present, in oil exploitation process, perforating job is just towards the future development of deep penetration and composite fracturing.In recent years, composite fracturing becomes one of focus of oil well perforation Effect study.But due to the space of perforating gun or the limited space of down-hole, therefore, the use amount of the gunpowder or propellant that play fracturing effect receives a lot of impacts, thus directly affects the effect of perforating and fracturing.
Summary of the invention
The purpose of this utility model is to solve above-mentioned problems of the prior art, and provides a kind of double-deck shell case petroleum perforation charge.
The utility model is achieved by the following technical solution:
A kind of double-deck shell case petroleum perforation charge, comprise cavity liner, main blasting charge and be close to the outer shell case and internal layer shell case that arrange, outer shell case top is provided with detonating fuse, cavity liner is located in internal layer shell case, main blasting charge is loaded between internal layer shell case and cavity liner, and main blasting charge top connects with detonating fuse; Wherein, described outer shell case is made by metal material, and internal layer shell case is made by low blasting speed height insensitive energetic material.
Further, the shape of outer shell case is that bottom is divided into cylindrical, top to be divided into truncated cone-shaped, and its shell thickness is evenly equal; The inwall that the outer wall of internal layer shell case is close to outer shell case is arranged, and the shape of the inwall of internal layer shell case is that bottom is divided into cylindrical, mid portion to be truncated cone-shaped, top is divided into taper shape; Cavity liner is truncated cone-shaped and is placed in internal layer shell case, and main blasting charge is filled in internal layer shell case inwall and connects with detonating fuse with between cavity liner outer wall.
The utility model perforating bullet not only has the ability of perforation but also has the effect of pressure break, belongs to a kind of composite gun perforation, can be used alone, and various composite gun perforation also can be coordinated to use together, thus reach the effect of pressure break and clean perforation tunnel.Wherein, outer shell case can select the metal material such as steel, aluminium, and internal layer shell case selects the low blasting speed height insensitive energetic material that just can only be detonated under explosive detonation effect.
The beneficial effects of the utility model are:
After using the utility model perforating bullet to detonate, the main blasting charge of perforating bullet is blasted, and crush metal or Powder Liner formation energy-gathering jetting, and high speed energy-gathering jetting carries out perforation on rock stratum.Simultaneously, the internal layer shell case that main blasting charge intense impact is made up of low blasting speed height insensitive energetic material, internal layer shell case is detonated, produce a large amount of high temperature and high pressure gas, high temperature and high pressure gas enters perforation tunnel rapidly, secondary action is carried out to perforation tunnel, thus realizes carrying out pressure break and clean effect to perforation tunnel.Use the utility model perforating bullet once can complete perforation, pressure break and the several functions such as clean, construction manipulation process is simple.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: the main blasting charge of 1-cavity liner, 2-, 3-outer shell case, 4-internal layer shell case, 5-detonating fuse.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model will be further described:
As shown in Figure 1, a kind of double-deck shell case petroleum perforation charge, comprise cavity liner 1, main blasting charge 2 and be close to the outer shell case 3 and internal layer shell case 4 that arrange, outer shell case 3 top is provided with detonating fuse 5, cavity liner 1 is located in internal layer shell case 4, main blasting charge 2 is loaded between internal layer shell case 4 and cavity liner 1, and main blasting charge 2 top connects with detonating fuse 5; Wherein, described outer shell case 3 is made by metal material, and internal layer shell case 4 is made by low blasting speed height insensitive energetic material.
During concrete enforcement, the shape of outer shell case 3 is that bottom is divided into cylindrical, top to be divided into truncated cone-shaped, and its shell thickness is evenly equal, and outer shell case 3 can select the metal material such as steel, aluminium; The outer wall of internal layer shell case 4 is close to the inwall setting of outer shell case 3, the shape of the inwall of internal layer shell case 4 is that bottom is divided into cylindrical, mid portion to be truncated cone-shaped, top is divided into taper shape, and internal layer shell case 4 selects the low blasting speed height insensitive energetic material that just can only be detonated under explosive detonation effect; Cavity liner 1 is for truncated cone-shaped and be placed in internal layer shell case 4, and main blasting charge 2 to be filled between internal layer shell case 4 inwall with cavity liner 1 outer wall and to connect with detonating fuse 5.
Claims (2)
1. a double-deck shell case petroleum perforation charge, comprise cavity liner (1) and main blasting charge (2), it is characterized in that: the outer shell case (3) and the internal layer shell case (4) that also comprise next-door neighbour's setting, outer shell case (3) top is provided with detonating fuse (5), cavity liner (1) is located in internal layer shell case (4), main blasting charge (2) is loaded between internal layer shell case (4) and cavity liner (1), and main blasting charge (2) top connects with detonating fuse (5); Wherein, described outer shell case (3) is made by metal material, and internal layer shell case (4) is made by low blasting speed height insensitive energetic material.
2. double-deck shell case petroleum perforation charge according to claim 1, is characterized in that: the shape of outer shell case (3) is that bottom is divided into cylindrical, top to be divided into truncated cone-shaped, and its shell thickness is evenly equal; The inwall that the outer wall of internal layer shell case (4) is close to outer shell case (3) is arranged, and the shape of the inwall of internal layer shell case (4) is that bottom is divided into cylindrical, mid portion to be truncated cone-shaped, top is divided into taper shape; Cavity liner (1) is for truncated cone-shaped and be placed in internal layer shell case (4), and main blasting charge (2) to be filled between internal layer shell case (4) inwall with cavity liner (1) outer wall and to connect with detonating fuse (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420533731.8U CN204082108U (en) | 2014-09-17 | 2014-09-17 | Double-deck shell case petroleum perforation charge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420533731.8U CN204082108U (en) | 2014-09-17 | 2014-09-17 | Double-deck shell case petroleum perforation charge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204082108U true CN204082108U (en) | 2015-01-07 |
Family
ID=52174839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420533731.8U Expired - Fee Related CN204082108U (en) | 2014-09-17 | 2014-09-17 | Double-deck shell case petroleum perforation charge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204082108U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107130946A (en) * | 2017-06-02 | 2017-09-05 | 北方斯伦贝谢油田技术（西安）有限公司 | A kind of economic benefits and social benefits perforating bullet and active material containing active material layer |
| CN107605442A (en) * | 2017-09-28 | 2018-01-19 | 中国石油天然气集团公司 | High-performance double-layer charge perforator |
| CN114160794A (en) * | 2021-10-20 | 2022-03-11 | 物华能源科技有限公司 | Energy-increasing active material shell, preparation method and outer sleeve type synergistic perforating charge matched with energy-increasing active material shell |
-
2014
- 2014-09-17 CN CN201420533731.8U patent/CN204082108U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107130946A (en) * | 2017-06-02 | 2017-09-05 | 北方斯伦贝谢油田技术（西安）有限公司 | A kind of economic benefits and social benefits perforating bullet and active material containing active material layer |
| CN107605442A (en) * | 2017-09-28 | 2018-01-19 | 中国石油天然气集团公司 | High-performance double-layer charge perforator |
| CN107605442B (en) * | 2017-09-28 | 2020-08-11 | 中国石油天然气集团公司 | High-performance double-layer charge perforating bullet |
| CN114160794A (en) * | 2021-10-20 | 2022-03-11 | 物华能源科技有限公司 | Energy-increasing active material shell, preparation method and outer sleeve type synergistic perforating charge matched with energy-increasing active material shell |
| CN114160794B (en) * | 2021-10-20 | 2024-06-11 | 物华能源科技有限公司 | Energy-increasing active material shell, preparation method and matched coat type synergistic perforating bullet |
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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: 20150107 Termination date: 20170917 |