CN101566056B - Body-free coaxial following synergistic perforator - Google Patents
Body-free coaxial following synergistic perforator Download PDFInfo
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- CN101566056B CN101566056B CN2009100228197A CN200910022819A CN101566056B CN 101566056 B CN101566056 B CN 101566056B CN 2009100228197 A CN2009100228197 A CN 2009100228197A CN 200910022819 A CN200910022819 A CN 200910022819A CN 101566056 B CN101566056 B CN 101566056B
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- pressure break
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- shell case
- perforator
- fracturing
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Abstract
The invention discloses a body-free coaxial following synergistic perforator, which comprises a body-free perforator firing mount and a body-free perforating bullet arranged on the firing mount, wherein the body-free perforating bullet comprises a cartridge case, a powder-type cover and a high explosive, the front end outer wall of the cartridge case is provided with an initiation half slot and a pressure wire, the front end inner wall of the cartridge case is provided with a booster hole, the back end of the cartridge case is provided with a fracturing powder box airtightly, and special fracturing powder is poured in the fracturing powder box and is distributed annularly along the inner wall of the fracturing powder box, wherein the special fracturing powder is prepared by evenly mixing ammonium permanganate of which the weight percentage is between 50 and 80 percent and aluminum powder of which the weight percentage is between 20 and 50 percent. The body-free coaxial following synergistic perforator has a simple structure and reliable mounting, the special fracturing powder is initiated and performs pulse fracturing on stratums directly while the powder-type cover forms high-speed jet flow to perform perforation, and the fracturing effect of the perforation is good, thus the body-free coaxial following synergistic perforator is particularly suitable for operations of high-density and low-permeability stratums.
Description
Technical field
The present invention relates to a kind of oil well perforation, fracturing set composite, especially relate to the coaxial following type perforator of a kind of no body of a gun.
Background technology
Existing perforating and fracturing recombiner has been body of a gun design, and when using it to carry out the oil well perforation, fracturing operation, compound medicine detonates in rifle and the prefabricated relief hole of perforating gun is pressed off; Pit shaft is produced pressure, and well voltage rise height produces pressure, data statistics to the stratum again; The cement sheath degree of depth behind the perforating and fracturing is about 800mm; Fracturing fracture is about 2500mm, so the loss of whole acting process energy is big, the perforating and fracturing effect is general; And because the inner space of the body of a gun is narrow and small, whole Design of device is restricted easily.And existing body-free perforator can only be used for simple oil well perforation operation, can not in perforation, carry out pressure break to the stratum.
Summary of the invention
Technical problem to be solved by this invention is to above-mentioned deficiency of the prior art; Provide a kind of no body of a gun coaxial following type perforator; It is simple in structure, and reliable installation can form the moment that perforation is carried out in high-speed jet at cavity liner; Special-purpose pressure break medicine detonates and directly the pulse pressure break is carried out on the stratum, and perforating and fracturing is effective.
For solving the problems of the technologies described above; The technical scheme that the present invention adopts is: the coaxial following type perforator of a kind of no body of a gun; Comprise the body-free perforator firing mount and be installed in the body-free perforating bullet on the said body-free perforator firing mount; Said body-free perforating bullet comprises shell case, be arranged on the inner cavity liner of shell case and be fitted in shell case and cavity liner between high explosive, the front end outer wall of said 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 front inner wall of said shell case is provided with the propagation of explosion hole that is full of high explosive; It is characterized in that: the back-end sealing of said shell case is equipped with bowl-type pressure break medicine box; Wherein, arranged outside has annular boss in the rear end of shell case, and the front portion of said pressure break medicine box closely is sleeved on the outside of said annular boss; Be cast with special-purpose pressure break medicine in the said pressure break medicine box; Said special-purpose pressure break medicine is along the inwall annular spread of pressure break medicine box, and the fluidic channel that formation communicates with said cavity liner inner chamber in the middle part of the inner chamber of pressure break medicine box, and the center line of said shell case, cavity liner and pressure break medicine box is located along the same line; Said special-purpose pressure break medicine is that the ammonium permanganate of 50-80% and aluminium powder that percentage by weight is 20-50% evenly are mixed and made into by percentage by weight.
Have annular groove on the outer surface of said annular boss, be provided with sealing ring in the said annular groove.
Said sealing ring is processed by fluorubber.
Said body-free perforating bullet is installed on the body-free perforator firing mount through shell case and pressure break medicine box.
The present invention compared with prior art has the following advantages: 1, the present invention is simple in structure, and is on-the-spot easy to install, and safe and reliable, is difficult for having an accident.2, the effective energy loss is little in the acting process of the present invention, and perforating and fracturing is effective, is specially adapted to the operation of high densification, low permeability formation.The shell case rear end is provided with the pressure break medicine box; Be cast with the special-purpose pressure break medicine that fracturing effect is good and cost is little in pressure break medicine box inside, so under the detonating fuse effect, high explosive detonates (microsecond level) and makes cavity liner form the moment of high-speed jet; Special-purpose pressure break medicine detonates (Millisecond) and directly forms the pressure break body; Pressure break body coaxial following gets into the stratum and directly the pulse pressure break is carried out on the stratum, and the cement sheath degree of depth after experiment showed, perforating and fracturing of the present invention can reach more than the 1000mm; Fracturing fracture is about 3000mm, and effect is superior to having body of a gun perforating and fracturing recombiner.
Through accompanying drawing and embodiment, technical scheme of the present invention is done further detailed description below.
Description of drawings
Fig. 1 is a structural representation of the present invention.
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;
The special-purpose pressure break medicine of 7-; 8-pressure break medicine box; The 9-fluidic channel.
The specific embodiment
As shown in Figure 1; The present invention includes body-free perforator firing mount 2 and be installed in the body-free perforating bullet 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 through the pressing device.The front end 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, with said detonate half slot relatively the front inner wall of shell case 3 be provided with the propagation of explosion hole that is full of high explosive 4.The back-end sealing of shell case 3 is equipped with bowl-type pressure break medicine box 8, and wherein, arranged outside is useful on the annular boss that pressure break medicine box 8 is installed in the rear end of shell case 3, and the front portion of pressure break medicine box 8 closely is sleeved on the outside of said annular boss.Be cast with special-purpose pressure break medicine 7 on the inwall of pressure break medicine box 8; Being special-purpose pressure break medicine 7 distributes along the inwall of pressure break medicine box 8 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 processed by metal dust, and high explosive 4 is black for gathering-16, and pressure break medicine box 8 is processed by No. 20 steel.
Special-purpose pressure break medicine 7 is after the ammonium permanganate of 50-80% and aluminium powder that percentage by weight is 20-50% evenly are mixed and made into, to be cast in the pressure break medicine box 8 by percentage by weight again.
Embodiment 1
Special-purpose pressure break medicine 7 is that 50% ammonium permanganate and percentage by weight are that 50% aluminium powder evenly is mixed and made into by percentage by weight.
Embodiment 2
Special-purpose pressure break medicine 7 is that 60% ammonium permanganate and percentage by weight are that 40% aluminium powder evenly is mixed and made into by percentage by weight.
Embodiment 3
Special-purpose pressure break medicine 7 is that 80% ammonium permanganate and percentage by weight are that 20% aluminium powder evenly is mixed and made into by percentage by weight.
Be to guarantee the sealing effectiveness between shell case 3 and the pressure break medicine box 8, on the outer surface of the annular boss of shell case 3, have annular groove, be provided with sealing ring 6 in the annular groove.In this embodiment, sealing ring 6 is processed by fluorubber.
Body-free perforating bullet is installed on the installing hole of body-free perforator firing mount 2 through shell case 3 and pressure break medicine box 8.
The course of work that the present invention does not have the coaxial following type perforator of the body of a gun is: at first, detonating fuse is placed in the half slot that detonates, and through silk pressing 1 detonating fuse is fixed; Ignite detonating fuse, fuse arming test experiment initiation also punctures on the shell case 3 at the front bulkhead 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, gets into the stratum and also forms the duct; In the moment that high explosive 4 detonates, special-purpose pressure break medicine 7 detonates and forms the pressure break body, and the duct coaxial following that forms along perforation of pressure break body gets into the stratum and carries out the detonation pressure break then.
The above; It only is preferred embodiment of the present invention; Be not that the present invention is done any restriction, every technical spirit all still belongs in the protection domain of technical scheme of the present invention any simple modification, change and equivalent structure transformation that above embodiment did according to the present invention.
Claims (4)
1. coaxial following type perforator of the no body of a gun; Comprise body-free perforator firing mount (2) and be installed in the body-free perforating bullet on the said body-free perforator firing mount (2); Said 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 front end outer wall of said 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 front inner wall of said shell case (3) is provided with the propagation of explosion hole that is full of high explosive (4), it is characterized in that: the back-end sealing of said shell case (3) is equipped with bowl-type pressure break medicine box (8), wherein; Rear end arranged outside at shell case (3) has annular boss; The front portion of said pressure break medicine box (8) closely is sleeved on the outside of said annular boss, is cast with special-purpose pressure break medicine (7) in the said pressure break medicine box (8), and said special-purpose pressure break medicine (7) is along the inwall annular spread of pressure break medicine box (8); And in the middle part of the inner chamber of pressure break medicine box (8), forming the fluidic channel (9) that communicates with said cavity liner (5) inner chamber, the center line of said shell case (3), cavity liner (5) and pressure break medicine box (8) is located along the same line; Said special-purpose pressure break medicine (7) is that the ammonium permanganate of 50-80% and aluminium powder that percentage by weight is 20-50% evenly are mixed and made into by percentage by weight.
2. according to the coaxial following type perforator of the described no body of a gun of claim 1, it is characterized in that: have annular groove on the outer surface of said annular boss, be provided with sealing ring (6) in the said annular groove.
3. according to the coaxial following type perforator of the described no body of a gun of claim 2, it is characterized in that: said sealing ring (6) is processed by fluorubber.
4. according to claim 1 or the coaxial following type perforator of the 2 described no body of a guies, it is characterized in that: said body-free perforating bullet is installed on the body-free perforator firing mount (2) through shell case (3) and pressure break medicine box (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100228197A CN101566056B (en) | 2009-06-04 | 2009-06-04 | Body-free coaxial following synergistic perforator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100228197A CN101566056B (en) | 2009-06-04 | 2009-06-04 | Body-free coaxial following synergistic perforator |
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| Publication Number | Publication Date |
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| CN101566056A CN101566056A (en) | 2009-10-28 |
| CN101566056B true CN101566056B (en) | 2012-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100228197A Active CN101566056B (en) | 2009-06-04 | 2009-06-04 | Body-free coaxial following synergistic perforator |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102432405B (en) * | 2011-07-26 | 2013-08-21 | 国营红林机械厂 | Low density explosive and preparation method thereof |
| CN102493792B (en) * | 2011-12-23 | 2015-04-22 | 甘肃省化工研究院 | Energetic perforating bullet holder for oil and gas well |
| 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 |
| CN105041273B (en) * | 2015-06-25 | 2018-09-18 | 西安物华巨能爆破器材有限责任公司 | Firing angle high energy gas fracture device is determined in orientation orientation outside a kind of |
| 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 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5148868A (en) * | 1991-08-12 | 1992-09-22 | Christian J B | Method and apparatus for perforating tubing |
| CN1129276A (en) * | 1995-02-14 | 1996-08-21 | 史慧生 | Perforation and fracturing device for oil well |
| CN201358768Y (en) * | 2009-03-04 | 2009-12-09 | 西安瑞通能源科技有限公司 | Retrievable coaxial simultaneous entry type enhanced perforator |
-
2009
- 2009-06-04 CN CN2009100228197A patent/CN101566056B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5148868A (en) * | 1991-08-12 | 1992-09-22 | Christian J B | Method and apparatus for perforating tubing |
| CN1129276A (en) * | 1995-02-14 | 1996-08-21 | 史慧生 | Perforation and fracturing device for oil well |
| CN201358768Y (en) * | 2009-03-04 | 2009-12-09 | 西安瑞通能源科技有限公司 | Retrievable coaxial simultaneous entry type enhanced perforator |
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| CN101566056A (en) | 2009-10-28 |
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