CN2208098Y - Electric cable connecting non-shelled fracturing bullet - Google Patents
Electric cable connecting non-shelled fracturing bullet Download PDFInfo
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- CN2208098Y CN2208098Y CN 94207781 CN94207781U CN2208098Y CN 2208098 Y CN2208098 Y CN 2208098Y CN 94207781 CN94207781 CN 94207781 CN 94207781 U CN94207781 U CN 94207781U CN 2208098 Y CN2208098 Y CN 2208098Y
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- charge
- igniter
- fracturing
- main charge
- powder
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Abstract
The utility model provides an electric cable connecting non-shelled fracturing bullet, which is composed of an igniter, an ignition charge, a main charge and an electric cable. The utility model is characterized in that the electric cable connecting non-shelled fracturing bullet has no metal or nonmetallic casing and is not connected with a core pipe for transmission fire. The adjustable electric cable connecting non-shelled fracturing bullet of impulse type can be assembled by connecting in series the igniter, the ignition charge of the changing rule of different burning speeds and burning surfaces and 3 to 10 sections main charge by the electric cable at the construction field according to the technological requirement of fracturing. The utility model can be widely used for a shallow well, a deep well and an ultradeep well, and the construction is convenient and safe.
Description
The utility model belongs to the high energy gas generating means in the High-Energy Gas Fracturing Technology field of oil, natural gas formation downhole.
High enegry gas fracturing is to utilize that gunpowder oil-gas Layer position conflagration in pit shaft produces a large amount of high temperature, gases at high pressure in the Pressure breaking bullet, extrude the crack system in the near wellbore formation zone, improve the near wellbore zone permeance property, thereby increase volume increase, the augmented injection new technology of oil, gas well output and water injection well injection rate, Pressure breaking bullet is high temperature, the gases at high pressure generating means of using in this technical field, be to improve the fracturing technique effect, the key of volume increase, augmented injection.
High enegry gas fracturing is to begin the new developing technology field in the sixties in this century, and China starts to walk than later.At present, the Pressure breaking bullet that is adopted in China High-Energy Gas Fracturing Technology field all is that shell fracturing bullet is arranged.Chinese patent: 89213979.X: oil reservoir detonation fracturing equipment, 92224050.7: " buffering Pressure breaking bullet " and 92233646.6: " deep well fracturing bullet ", though more original Pressure breaking bullet has had bigger improvement at aspects such as structure designs, go for 3000 meters pressure breaks dark or dark oil, gas well rock stratum more than 3000 meters.But above-mentioned Pressure breaking bullet all has heavy metal or non-metal shell, body and igniting, biography fire complex structure, and construction is inconvenient, shortcomings such as cost height.
The purpose of this utility model: be to avoid above-mentioned weak point of the prior art, and design is processed into the cable of different kind of fillers, different size and is connected non-shell fracturing bullet, applicable in 3000 meters cased wells dark and deep-well and ultradeep well more than 3000 meters with the oil pipe well in.And further simplified structure reaches on-the-spot and connects simply, easy construction, and cost is low, fully improves the purpose of fracturing effect.
Design of the present utility model: realize above-mentioned purpose, further simplified structure removes the metal or the non-metal shell that have Pressure breaking bullet now, simplifies body structure; Simplify igniting, burning train and cartridging complex structure.Light the powder charge of igniting and adopt by igniter, in the endoporus that passes main charge with cable of igniting above the powder charge more piece main charge of contacting, the only local cladding of these main charge powder column two ends external surfaces.When a following joint ignites after powder charge lighted, the high temperature that generates in pit shaft, gases at high pressure are lighted adjacent main charge one by one.Implement pressure control by the combustion speed or the burning area Changing Pattern that change some main charge powder columns itself, and can realize that adjustable pulsed pressure changes in the pit shaft.By change the ignite composition and the outside dimension size of powder charge powder column, main charge powder column, applicable to the sleeve pipe and the oil pipe well of different depth.
The utility model is by igniter 1-9, the powder charge 10-11 that ignites, and main charge 12-13, cable 14 is formed.
Igniter 1-9:, supporting plate 8 stifled 7 by suspension ring 1, sealing conducting rod 2, squib 3, igniter housing 4, igniting core pipe 5, igniting adjuvant piece 6, sealing, protective cap 9 are formed.Be used for the igniting of powder charge, fixing and protective effect.
Powder charge 10-11 ignites: be made up of the powder charge powder column 10 that ignites, side cladding 11.Be used to the main charge that ignites.
Main charge 12-13: form by main charge powder column 12, local cladding 13.
Cable 14: pass by each joint main charge endoporus, main charge is contacted, be connected with suspension ring 1 and sealing conducting rod 2 again.Cable 14 is the cable of the removing of cable car and the usefulness of lighting a fire, and is again each stube cable that saves ignite powder charge 10-11 and main charge 12-13.According to pressing crack construction process optimization designing requirement, determine the main charge joint number, can assemble at the scene, there is shell fracturing bullet to compare with existing, it is very convenient to construct, and fracturing effect obviously improves.
The utility model has the advantages that: cable connects non-shell fracturing bullet had not both had metal and non-metal shell, had removed the core pipe that respectively saves the main charge centre bore again, and the unit length explosive payload is big, and is simple in structure, and cost is low.Igniting, biography fire and hermetically-sealed construction are simple, have avoided infiltration or misfire phenomenon, good reliability.According to the pressing crack construction technological requirement, can assemble into different, adjustable pulsed cable connection non-shell fracturing bullet by on-the-spot main charge with different combustion speed of more piece or different combustion face Changing Patterns.This kind Pressure breaking bullet assembled on site, cable connect very convenient, safe and reliable, and fracturing effect is good.
1--suspension ring, 2--sealing conducting rod, 3--squib,
4--igniter housing, 5--igniting core pipe, 6--igniting adjuvant piece,
7--sealing is stifled, 8--supporting plate, 9--protective cap,
10--ignite powder charge powder column, 11--side cladding,
12--main charge powder column, the local cladding of 13--, 14--cable.
Embodiment:
We are consistent to think that realization preferred plan of the present utility model is:
1, implement with reference to accompanying drawing 1:
The manufacturing of igniter 1-9: wherein suspension ring 1 usefulness material is a medium carbon steel, and igniter housing 4, igniting core pipe 5, sealing are stifled 7, the material of supporting plate 8 is aluminium alloys (or steel).
The ignite manufacturing of powder charge 10-11 and main charge 12-13: ignite powder charge powder column and main charge powder column are that main component is the powder column that the double-base powder of nitrocotton, nitroglycerine and supplementary element is pressed into, and cladding is wrapped on the powder column external surface for the bafta viscose glue.The external diameter of powder charge 10-11 and main charge 12-13 of igniting is 100 millimeters, and length can be 500 millimeters.The cable connection non-shell fracturing bullet that one cover is complete saves main charge 12-13(joint numbers with cable with igniter 1-9, the powder charge 10-11 and 3～10 that ignites can be decided by technological requirement) contact and form.Be applicable to that the degree of depth is no more than 3000 meters cased well construction down.
2, connect non-shell fracturing bullet with reference to cable in the accompanying drawing 1, it is characterized in that: ignite powder charge powder column 10 and main charge powder column 12 cross sections are made single hole tubulose and circular hole porous or grid hole cellular (as shown in Figure 2), with cable single hole tubulose and cellular main charge are concatenated into one, constitute adjustable pulsed cable and connect non-shell fracturing bullet.
3, cable connects non-shell fracturing bullet as shown in Figure 1, and it is characterized in that: ignite powder charge 10-11 and main charge 12-13 external diameter are made
40～
60 o'clock, be applicable in the oil pipe well to remove.
4, cable as shown in Figure 1 connects ignite the powder charge powder column 10 and the main charge powder column 12 of non-shell fracturing bullet, when its composition is ammonium perchlorate, rubber and supplementary element, in the deep-well more than 3000 meters and ultradeep well sleeve pipe and oil pipe well.
Claims (1)
1, cable connection non-shell fracturing bullet is made up of igniter 1～9, the powder charge 10～11 of igniting, main charge 12～13 and cable 14, it is characterized in that: no metal and non-metal shell, do not have connection and biography fire core pipe in the endoporus of each joint main charge 12～13; Insert igniter 1～9 in the endoporus of powder charge 10～11 that ignites, the suspension ring that cable passed back and igniter 1～9 from each joint main charge endoporus couple together;
Igniter 1～9:, supporting plate 8 stifled 7 by suspension ring 1, sealing conducting rod 2, squib 3, igniter housing 4, igniting core pipe 5, igniting adjuvant piece 6, sealing and protective cap 9 are formed;
The powder charge 10～11 of igniting: be by the powder charge powder column 10 that ignites, side cladding 11 is formed;
Main charge 12～13: form by main charge powder column 12, local cladding 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94207781 CN2208098Y (en) | 1994-04-18 | 1994-04-18 | Electric cable connecting non-shelled fracturing bullet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94207781 CN2208098Y (en) | 1994-04-18 | 1994-04-18 | Electric cable connecting non-shelled fracturing bullet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2208098Y true CN2208098Y (en) | 1995-09-20 |
Family
ID=33826004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94207781 Expired - Fee Related CN2208098Y (en) | 1994-04-18 | 1994-04-18 | Electric cable connecting non-shelled fracturing bullet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2208098Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006045248A1 (en) * | 2004-10-29 | 2006-05-04 | Xi'an Tongyuan Petrotech Co. Ltd | A high-energy gas fracture tool for through-tubing operation |
| CN101358519B (en) * | 2007-08-02 | 2012-04-25 | 黑龙江华安民爆器材有限责任公司 | Lifting bail type core pipe connecting with high energy gas fracture bomb |
-
1994
- 1994-04-18 CN CN 94207781 patent/CN2208098Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006045248A1 (en) * | 2004-10-29 | 2006-05-04 | Xi'an Tongyuan Petrotech Co. Ltd | A high-energy gas fracture tool for through-tubing operation |
| US7819180B2 (en) | 2004-10-29 | 2010-10-26 | Tong Oil Tools Co., Ltd. | High-energy gas fracture apparatus for through-tubing operations |
| CN101358519B (en) * | 2007-08-02 | 2012-04-25 | 黑龙江华安民爆器材有限责任公司 | Lifting bail type core pipe connecting with high energy gas fracture bomb |
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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 |