CN201358768Y - Retrievable coaxial simultaneous entry type enhanced perforator - Google Patents
Retrievable coaxial simultaneous entry type enhanced perforator Download PDFInfo
- Publication number
- CN201358768Y CN201358768Y CNU2009200320926U CN200920032092U CN201358768Y CN 201358768 Y CN201358768 Y CN 201358768Y CN U2009200320926 U CNU2009200320926 U CN U2009200320926U CN 200920032092 U CN200920032092 U CN 200920032092U CN 201358768 Y CN201358768 Y CN 201358768Y
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- CN
- China
- Prior art keywords
- pressure break
- shell case
- free
- perforator
- cracking
- 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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Abstract
The utility model discloses a retrievable coaxial simultaneous entry type enhanced perforator comprises a retrievable perforator firing mount and a retrievable perforating charge, wherein, the retrievable perforating charge comprises a cartridge case, a liner and high explosives, an initiation semi-circular groove and a pressure wire are arranged on the outer wall at the top end of the cartridge case, a booster hole is formed on the inner wall at the top end of the cartridge case, the bottom end of the cartridge case is sealed by a cracking explosive box, high-energy cracking explosives are distributed in ring formation on the inner wall of the cracking explosive box, a jet flow passage is formed at the middle part of the inner chamber of the cracking explosive box to be communicated with the inner chamber of the liner, and the center lines of the cartridge case, the liner and the cracking explosive box are collinear with each other. Besides the advantages of the simple structure, low cost and reliable installation, the utility model can ignite the high-energy cracking explosives to form a cracking body the moment the liner develops high-speed jet flows for perforation, thereby enabling the cracking body to coaxially enter the stratum to directly pulse-crack the stratum.
Description
Technical field
The utility model belongs to the oil development technical field, especially relates to a kind of body-free coaxial following synergistic perforator that is used for oil well perforation.
Background technology
Existing body-free perforator can only be formed for the high-speed jet of perforation, can not carry out pressure break to the stratum in perforation.And composite perforator is a kind of shaped charge with gun body that perforation, gas fracturing are combined, it is when carrying out perforating job, compound medicine detonates in rifle and the prefabricated relief hole of perforating gun is pressed off, earlier pit shaft is produced pressure, by well voltage rise height the stratum is being produced pressure, energy loss is big, and effect is general; And have body of a gun space narrow and small, design is restricted.
The utility model content
Technical problem to be solved in the utility model is at above-mentioned deficiency of the prior art, a kind of body-free coaxial following synergistic perforator is provided, it is simple in structure, cost is low, install reliable, can form the moment that perforation is carried out in high-speed jet at cavity liner, high energy pressure break medicine detonates and forms the pressure break body, and pressure break body coaxial following enters the stratum and directly the pulse pressure break carried out on the stratum.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of body-free coaxial following synergistic perforator, comprise body-free perforator firing mount and the body-free perforating bullet that is installed on the described body-free perforator firing mount, described body-free perforating bullet comprises shell case, be arranged on the cavity liner of shell case inside and be fitted in shell case and cavity liner between high explosive, the top outer wall of described shell case is provided with detonate half slot and the silk pressing that is used for fixing this detonating fuse that is used to place detonating fuse, the top inwall of described shell case is provided with the propagation of explosion hole that is full of high explosive, it is characterized in that: the bottom of described shell case is by the sealing of bowl-type pressure break medicine box, wherein, arranged outside has annular boss in the bottom of shell case, the front portion of described pressure break medicine box closely is sleeved on the outside of described annular boss, inwall along the pressure break medicine box is distributed with high energy pressure break medicine ringwise, and the fluidic channel that formation communicates with described cavity liner inner chamber in the middle part of the inner chamber of pressure break medicine box, described shell case, the center line of cavity liner and pressure break medicine box is located along the same line.
Have annular groove on the lateral surface of described annular boss, and in described annular groove, be provided with sealing ring.
Described sealing ring is made by fluorubber.
Described body-free perforating bullet is installed on the described body-free perforator firing mount by shell case and pressure break medicine box.
The utility model compared with prior art has the following advantages: the utility model belongs to body-free perforator, and it is simple in structure, and cost is low, and is on-the-spot easy to install, and safe and reliable, is difficult for having an accident; The pressure break medicine box is in sealing shell case rearward end, be provided with high energy pressure break medicine in pressure break medicine box inside, so high explosive detonates and make cavity liner form the moment of high-speed jet, high energy pressure break medicine detonates and directly forms the pressure break body, pressure break body coaxial following enters the stratum and directly the pulse pressure break is carried out on the stratum, so the loss of the utility model effective energy is little, fracturing effect is good.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Description of reference numerals:
The 1-silk pressing; 2-body-free perforator firing mount; The 3-shell case;
The 4-high explosive; The 5-cavity liner; The 6-sealing ring;
7-high energy pressure break medicine; 8-pressure break medicine box; The 9-fluidic channel.
The specific embodiment
As shown in Figure 1, the utility model comprises body-free perforator firing mount 2 and the body-free perforating bullet that is installed on the body-free perforator firing mount 2, body-free perforating bullet comprises shell case 3, cavity liner 5 and high explosive 4, cavity liner 5 is arranged on the inside of shell case 3 and is used for encapsulating high explosive 4, and high explosive 4 is fitted between shell case 3 and the cavity liner 5 by the pressing device.The top outer wall of shell case 3 is provided with detonate half slot and the silk pressing 1 that is used for fixing this detonating fuse that is used to place detonating fuse, is provided with the propagation of explosion hole that is full of high explosive 4 with the top inwall of the relative shell case 3 of the described half slot that detonates.The bottom of shell case 3 wherein, is useful on the annular boss that pressure break medicine box 8 is installed in the bottom of shell case 3 arranged outside by 8 sealings of bowl-type pressure break medicine box, and the front portion of pressure break medicine box 8 closely is sleeved on the outside of described annular boss.Be pressed with high energy pressure break medicine 7 by the pressing device on the inwall of pressure break medicine box 8, be that high energy pressure break medicine 7 inwalls along pressure break medicine box 8 distribute in the form of a ring, and in the middle part of the inner chamber of pressure break medicine box 8, forming the fluidic channel 9 that communicates with cavity liner 5 inner chambers, the center line of shell case 3, cavity liner 5 and pressure break medicine box 8 is located along the same line.Wherein, body-free perforator firing mount 2 is comminuted firing mount, and hat shell case 3 is processed by No. 45 steel, and conical cavity liner 5 is made by metal dust, and high explosive 4 is for poly-black-16, and high energy pressure break medicine 7 is the rocket assist medicine, and pressure break medicine box 8 is processed by No. 20 steel.
Be to guarantee the sealing effectiveness between shell case 3 and the pressure break medicine box 8, on the lateral surface of the annular boss of shell case 3, have annular groove, and in annular groove, be provided with sealing ring 6.In the present embodiment, sealing ring 6 is made by fluorubber.Body-free perforating bullet is installed on the installing hole of body-free perforator firing mount 2 by shell case 3 and pressure break medicine box 8.
The course of work of the present utility model is: at first, detonating fuse is placed in the half slot that detonates of shell case top outer wall, and by silk pressing 1 detonating fuse is fixed; Ignite detonating fuse, fuse arming test experiment initiation also punctures on the shell case 3 at the top end wall that detonates between half slot and the propagation of explosion hole, and high explosive 4 detonates and makes cavity liner 5 form high-speed jets, after this high-speed jet penetrates sleeve pipe, cement sheath, enters the stratum and forms the duct; In the moment that high explosive 4 detonates, high energy pressure break medicine 7 detonates and forms the pressure break body, and the duct coaxial following that forms along perforation of pressure break body enters the stratum and carries out the detonation pressure break then.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; every according to the utility model technical spirit to any simple modification, change and equivalent structure transformation that above embodiment did, all still belong in the protection domain of technical solutions of the utility model.
Claims (4)
1. body-free coaxial following synergistic perforator, comprise body-free perforator firing mount (2) and be installed in body-free perforating bullet on the described body-free perforator firing mount (2), described body-free perforating bullet comprises shell case (3), be arranged on the inner cavity liner (5) of shell case (3) and be fitted in shell case (3) and cavity liner (5) between high explosive (4), the top outer wall of described shell case (3) is provided with detonate half slot and the silk pressing (1) that is used for fixing this detonating fuse that is used to place detonating fuse, the top inwall of described shell case (3) is provided with the propagation of explosion hole that is full of high explosive (4), it is characterized in that: the bottom of described shell case (3) is by bowl-type pressure break medicine box (8) sealing, wherein, bottom arranged outside at shell case (3) has annular boss, the front portion of described pressure break medicine box (8) closely is sleeved on the outside of described annular boss, inwall along pressure break medicine box (8) is distributed with high energy pressure break medicine (7) ringwise, and the fluidic channel (9) that formation communicates with described cavity liner (5) inner chamber in the middle part of the inner chamber of pressure break medicine box (8), described shell case (3), the center line of cavity liner (5) and pressure break medicine box (8) is located along the same line.
2. according to the described body-free coaxial following synergistic perforator of claim 1, it is characterized in that: have annular groove on the lateral surface of described annular boss, and in described annular groove, be provided with sealing ring (6).
3. according to the described body-free coaxial following synergistic perforator of claim 2, it is characterized in that: described sealing ring (6) is made by fluorubber.
4. according to claim 1,2 or 3 described body-free coaxial following synergistic perforators, it is characterized in that: described body-free perforating bullet is installed on the described body-free perforator firing mount (2) by shell case (3) and pressure break medicine box (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200320926U CN201358768Y (en) | 2009-03-04 | 2009-03-04 | Retrievable coaxial simultaneous entry type enhanced perforator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200320926U CN201358768Y (en) | 2009-03-04 | 2009-03-04 | Retrievable coaxial simultaneous entry type enhanced perforator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201358768Y true CN201358768Y (en) | 2009-12-09 |
Family
ID=41424531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200320926U Expired - Fee Related CN201358768Y (en) | 2009-03-04 | 2009-03-04 | Retrievable coaxial simultaneous entry type enhanced perforator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201358768Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101566056B (en) * | 2009-06-04 | 2012-04-25 | 西安瑞通能源科技有限公司 | Body-free coaxial following synergistic perforator |
| CN103590792A (en) * | 2013-11-28 | 2014-02-19 | 四川石油射孔器材有限责任公司 | Gun perforation bullet |
| CN108952643A (en) * | 2018-06-06 | 2018-12-07 | 宁波精达五金制造有限公司 | A kind of perforation shell case and its manufacturing method |
| 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 |
-
2009
- 2009-03-04 CN CNU2009200320926U patent/CN201358768Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101566056B (en) * | 2009-06-04 | 2012-04-25 | 西安瑞通能源科技有限公司 | Body-free coaxial following synergistic perforator |
| CN103590792A (en) * | 2013-11-28 | 2014-02-19 | 四川石油射孔器材有限责任公司 | Gun perforation bullet |
| CN108952643A (en) * | 2018-06-06 | 2018-12-07 | 宁波精达五金制造有限公司 | A kind of perforation shell case and its manufacturing method |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091209 Termination date: 20120304 |