CN2470533Y - Boss-type explosive-filling synergist perforating bullet - Google Patents
Boss-type explosive-filling synergist perforating bullet Download PDFInfo
- Publication number
- CN2470533Y CN2470533Y CN 01209157 CN01209157U CN2470533Y CN 2470533 Y CN2470533 Y CN 2470533Y CN 01209157 CN01209157 CN 01209157 CN 01209157 U CN01209157 U CN 01209157U CN 2470533 Y CN2470533 Y CN 2470533Y
- Authority
- CN
- China
- Prior art keywords
- metal shell
- boss
- shaped charge
- perforation
- explosive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
Disclosed is a boss-shaped charge perforating bullet which includes a metal shell, an explosive cylinder and a shaped charge liner. High explosive is pressed and mounted between the metal shell and the shaped charge liner. A circular groove is added on the metal shell inner wall of the shaped charge liner in the utility model to make a circular boss to be formed on the explosive cylinder. In explosion, the shaped charge liner is instantly crushed by the press-mounted high explosive with the circular boss, and then protruding shooting flows are shot out at different speeds and in different levels, so that the aperture of the perforation is increased, the perforation canal is widened and a cleaning perforation canal at a compacted part on the perforation wall is broken. With the effective structure, the utility model performs well in gapping and smashing rock beddings and helps greatly improve the extraction rate of oil in an oil well.
Description
The utility model belongs to the oil well perforation bullet, is specifically related to a kind of oil gas well boss type powder charge synergy perforating bullet.
At present, the common piercing bullet piercing aperture that use in the oil field is less, and the hole wall compaction band is more serious, influences the tar productivity of oil well, in order to enlarge the aperture, improves tar productivity, need load gunpowder between bullet and bullet, and secondary fracturing is done the destruction of perforating gun bigger like this.
The purpose of this utility model provides a kind of new oil gas well with boss type powder charge synergy perforating bullet, the long and thin metal jet of common piercing bullet blast generation can be changed into the thick powerful metal flow that rouses, and makes the effect of seam, synergy perforation to reach reaming.
Technical solution of the present utility model is: the oil gas well is made up of metal shell, explosive column, cavity liner three parts with boss type powder charge synergy perforating bullet, the metal shell inwall is processed with an annular groove, and detonating explosive is fitted between metal shell and the cavity liner.
The utility model has been set up annular groove at perforating bullet metal shell inwall, makes the boss that forms the band shape on the explosive column.Explosion time, high explosion velocity pressed explosives moment of band shape boss the cavity liner that crushes, the protruding jet of drum that forms the friction speed gradient penetrates, can make perforation diameter increase, duct overstriking like this, can destroy the compaction band of hole wall, clean the duct, it is good that the seam crushing effect is made in the rock stratum.
Further describe the utility model below in conjunction with accompanying drawing:
Accompanying drawing is the utility model structural representation.
Wherein: 1, metal shell 2, explosive column 3, cavity liner 4, annular groove
As shown in the figure, metal shell 1 inwall is processed with an annular groove 4, and that the shape of annular groove can be processed into is trapezoidal, triangle or circular arc.Concrete size can be according to needed perforation diameter and the design of blast gradient.Metal shell 1 intracavity bottom is taper or sphere.Cavity liner 3 adopts Cu-base powder to make.Detonating explosive is fitted between high duty metal housing 1 and the cavity liner 3, forms the explosive column 2 of band shape boss.
The perforating bullet that adopts the utility model to make, reasonable in design, simple in structure, it is very good that the broken effect of seam is made in the rock stratum, can obviously improve the tar productivity of oil well.
Claims (2)
1, a kind of oil gas well is made up of metal shell, explosive column, cavity liner three parts with boss type powder charge synergy perforating bullet, it is characterized in that the metal shell inwall is processed with an annular groove, and detonating explosive is fitted between metal shell and the cavity liner.
2, oil gas well according to claim 1 is with boss type powder charge synergy perforating bullet, it is characterized in that being shaped as of metal shell inwall annular groove is trapezoidal, triangle or circular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01209157 CN2470533Y (en) | 2001-03-15 | 2001-03-15 | Boss-type explosive-filling synergist perforating bullet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01209157 CN2470533Y (en) | 2001-03-15 | 2001-03-15 | Boss-type explosive-filling synergist perforating bullet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2470533Y true CN2470533Y (en) | 2002-01-09 |
Family
ID=33629067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01209157 Expired - Fee Related CN2470533Y (en) | 2001-03-15 | 2001-03-15 | Boss-type explosive-filling synergist perforating bullet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2470533Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102041986A (en) * | 2011-01-20 | 2011-05-04 | 中国石油集团川庆钻探工程有限公司测井公司 | Special deep penetrating charge |
| CN102155201A (en) * | 2011-04-26 | 2011-08-17 | 中国石油化工集团公司 | Lined-cavity charge with consistent punching aperture rule and hole depth |
| CN103424035A (en) * | 2013-08-16 | 2013-12-04 | 中国工程物理研究院化工材料研究所 | Burst height controllable non-carrot energy-gathered liner |
| WO2014172910A1 (en) * | 2013-04-27 | 2014-10-30 | 西安瑞通能源科技有限公司 | Coaxial follow-on perforating charge and perforation process for self-eliminating crushed zone using same |
| CN111894534A (en) * | 2020-08-14 | 2020-11-06 | 中国石油天然气集团有限公司 | Novel detonation self-adjusting perforating bullet |
| CN113134603A (en) * | 2021-03-12 | 2021-07-20 | 西安物华巨能***器材有限责任公司 | Formula for shaped charge liner and perforating bullet for fracturing jet channel of oil and gas well |
-
2001
- 2001-03-15 CN CN 01209157 patent/CN2470533Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102041986A (en) * | 2011-01-20 | 2011-05-04 | 中国石油集团川庆钻探工程有限公司测井公司 | Special deep penetrating charge |
| CN102155201A (en) * | 2011-04-26 | 2011-08-17 | 中国石油化工集团公司 | Lined-cavity charge with consistent punching aperture rule and hole depth |
| WO2014172910A1 (en) * | 2013-04-27 | 2014-10-30 | 西安瑞通能源科技有限公司 | Coaxial follow-on perforating charge and perforation process for self-eliminating crushed zone using same |
| CN104169521A (en) * | 2013-04-27 | 2014-11-26 | 西安瑞通能源科技有限公司 | Coaxial follow-on perforating charge and perforation process for self-eliminating crushed zone using same |
| CN104169521B (en) * | 2013-04-27 | 2016-12-07 | 西安瑞通能源科技有限公司 | A kind of coaxial following type perforating bullet and from decompaction band gun perforation process |
| EA029655B1 (en) * | 2013-04-27 | 2018-04-30 | Сянь Жуйтун Энерджи Текнолоджи Ко., Лтд. | Coaxial perforating charge and perforation process for self-eliminating compacted zone using same |
| CN103424035A (en) * | 2013-08-16 | 2013-12-04 | 中国工程物理研究院化工材料研究所 | Burst height controllable non-carrot energy-gathered liner |
| CN111894534A (en) * | 2020-08-14 | 2020-11-06 | 中国石油天然气集团有限公司 | Novel detonation self-adjusting perforating bullet |
| CN111894534B (en) * | 2020-08-14 | 2022-03-22 | 中国石油天然气集团有限公司 | Novel detonation self-adjusting perforating bullet |
| CN113134603A (en) * | 2021-03-12 | 2021-07-20 | 西安物华巨能***器材有限责任公司 | Formula for shaped charge liner and perforating bullet for fracturing jet channel of oil and gas well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |