CN204212757U - Long-delay detonating device - Google Patents
Long-delay detonating device Download PDFInfo
- Publication number
- CN204212757U CN204212757U CN201420610152.9U CN201420610152U CN204212757U CN 204212757 U CN204212757 U CN 204212757U CN 201420610152 U CN201420610152 U CN 201420610152U CN 204212757 U CN204212757 U CN 204212757U
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- CN
- China
- Prior art keywords
- piston
- cable
- rope
- priming device
- striker
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Links
- 230000037452 priming Effects 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000002347 injection Methods 0.000 abstract description 2
- 239000007924 injection Substances 0.000 abstract description 2
- 238000010304 firing Methods 0.000 abstract 2
- 239000011148 porous material Substances 0.000 abstract 2
- 238000005553 drilling Methods 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 238000010008 shearing Methods 0.000 abstract 1
- 230000009466 transformation Effects 0.000 abstract 1
- 239000003721 gunpowder Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 5
- 238000011084 recovery Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000002706 hydrostatic effect Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000003190 augmentative effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005465 channeling Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to a long time delay priming device. The problems of blockage removal and transformation of an old well of an oil field and difficulty in production and injection of the old well are mainly solved. The novel high-efficiency energy-saving drilling machine comprises a shell (1), sieve pore plugs (2), pins (3), a shearing sleeve (4), a piston (5), a firing pin (6), a needle hitting groove (7), ignition powder (8), an inner sleeve (9), a delay cable (10), a cable framework (11) and a detonator (12), wherein the sieve pore plugs (2), the piston (5), the firing pin (6) and the delay cable (10) wound on the cable framework (11) are sequentially placed inside the shell (1) from top to bottom. The utility model discloses utensil work safety and stability, unblock effect are obvious.
Description
Technical field
The utility model relates to a kind of long delay priming device of oil field gunpowder pulse release synergistic process technical field, particularly Oil/gas Well.
Background technology
Pulse release is important technical links in oil field development.At present, many oil fields enter development late stage, and the old well needing de-plugging to transform day by day increases, and for old well extraction, inject the problems such as difficult, adopt pulse release technology tentatively to achieve the volume increase of old well, augmented injection object, have seen obvious effect.
Utility model content
For solving Problems existing in background technology, the utility model proposes one can before triggering de-plugging gunpowder, cable and delivery recovery instrument are taken out in well, when ensureing igniting, without cable in well, can not cable being damaged, it also avoid a kind of long delay priming device be applied on Oil/gas Well that traditional cable transport pulse de-plugging process when lighting a fire, cable is altered the potential safety hazard brought to well head constructor.
The technical scheme that the utility model adopts is: comprise housing, sieve aperture plug, pin, shear sleeve, piston, striker, striker slot, ignition charge, inner sleeve, extension rope, rope skeleton, detonator, the extension rope that enclosure interior is placed sieve aperture plug, piston, striker successively from top to bottom and is wrapped on rope skeleton, described piston is spacing fixing by pin, and piston exterior is provided with the shear sleeve with bayonet fittings;
Seal respectively by sealing ring between described shear sleeve and housing and piston;
Described extension rope is two, and corresponding two strikers of difference.
The beneficial effects of the utility model are: can before triggering de-plugging gunpowder, cable and delivery recovery instrument are taken out in well, when ensureing igniting, without cable in well, thus cable can not be damaged, on the other hand, it also avoid traditional cable transport pulse de-plugging process, when lighting a fire, the potential safety hazard brought to well head constructor altered by cable.
Accompanying drawing explanation
Fig. 1 is the utility model organigram.
1-housing in figure, 2-sieve aperture plug, 3-pin, 4-shear sleeve, 5-piston, 6-striker, 7-striker slot, 8-ignition charge, 9-inner sleeve, 10-extension rope, 11-rope skeleton, 12-detonator.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described further.
As shown in Figure 1, a kind of long delay priming device, comprises housing 1, sieve aperture plug 2, pin 3, shear sleeve 4, piston 5, striker 6, striker slot 7, ignition charge 8, inner sleeve 9, extension rope 10, rope skeleton 11, detonator 12, the extension rope 10 that housing 1 inside is placed sieve aperture plug 2, piston 5, striker 6 successively from top to bottom and is wrapped on rope skeleton 11, described piston 5 is spacing fixing by pin 3, and piston 5 outside is provided with the shear sleeve 4 coordinated with pin 3; Seal respectively by sealing ring between described shear sleeve 4 and housing 1 and piston 5, prevent enclosure interior from intaking; Described extension rope 10 is two, adopts two dual-delay structure of getting angry, and two strikers 6 in corresponding two striker slot 7 of difference, ensure that time delay is more reliable, have a time delay rope not work in time, equally also can trigger Pressure breaking bullet by another root time delay rope.
Concrete, first, reclaim instrument by the delivery of cable lower end and lower tool is delivered to order bottom, lower tool is gunpowder hanger from top to bottom successively, long delay priming device, de-plugging gunpowder, there is passage gunpowder hanger inside, go into the well in process, deliver and reclaim tool lower portion seal shaft by this channel seal, ensure that liquid column hydrostatic pressure can not trigger this long delay priming device in the process of going into the well, after depthkeeping, employing puts the mode of putting, gunpowder hanger and lower tool are fixed on construction interval casing wall, by delivering recovery instrument ground instrument control system, realize downhole instrument to be separated with gunpowder hanger, after delivery recovery instrument is separated with gunpowder hanger, gunpowder hanger inner passage is opened, in pit shaft, liquid column hydrostatic pressure passes through this channeling in long delay priming device piston 5 upper surface, when liquid column hydrostatic pressure be greater than pin 3 cut off pressure time, piston 5 drives shear sleeve 4 to cut off pin 3, piston driving striker 6 trigger point gunpowder 8, ignition charge triggers again extension rope 10, through time delay in 25 minutes, extension rope triggers detonator 13, then the de-plugging gunpowder that bottom connects is triggered, complete construction.
Claims (3)
1. a long delay priming device, comprise housing (1), sieve aperture plug (2), pin (3), shear sleeve (4), piston (5), striker (6), striker slot (7), ignition charge (8), inner sleeve (9), extension rope (10), rope skeleton (11), detonator (12), it is characterized in that: sieve aperture plug (2) is placed from top to bottom successively in housing (1) inside, piston (5), striker (6) and the extension rope (10) be wrapped on rope skeleton (11), described piston (5) is spacing fixing by pin (3), piston (5) outside is provided with the shear sleeve (4) coordinated with pin (3).
2. a kind of long delay priming device according to claim 1, is characterized in that: seal respectively by sealing ring between described shear sleeve (4) and housing (1) and piston (5).
3. a kind of long delay priming device according to claim 1, is characterized in that: described extension rope (10) is two, and corresponding two strikers (6) of difference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420610152.9U CN204212757U (en) | 2014-10-21 | 2014-10-21 | Long-delay detonating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420610152.9U CN204212757U (en) | 2014-10-21 | 2014-10-21 | Long-delay detonating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204212757U true CN204212757U (en) | 2015-03-18 |
Family
ID=52981438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420610152.9U Active CN204212757U (en) | 2014-10-21 | 2014-10-21 | Long-delay detonating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204212757U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593392A (en) * | 2017-01-03 | 2017-04-26 | 中国石油天然气股份有限公司 | Throwing type pulse plugging removal and efficiency improvement process for oil-gas well |
| CN108252687A (en) * | 2018-04-08 | 2018-07-06 | 宝鸡通源石油钻采工具有限公司 | A kind of automatic liquid filling pressure drilling priming devices of TCP |
| CN111550229A (en) * | 2020-05-12 | 2020-08-18 | 燕山大学 | Heat conduction detonation delaying fracturing device and construction method |
| CN111734388A (en) * | 2020-06-30 | 2020-10-02 | 中国石油天然气股份有限公司 | Detonation and explosion transfer device with conical surface positioning structure |
| CN112145143A (en) * | 2020-11-09 | 2020-12-29 | 黄山联合应用技术研究院 | Novel oil well repairing method |
-
2014
- 2014-10-21 CN CN201420610152.9U patent/CN204212757U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593392A (en) * | 2017-01-03 | 2017-04-26 | 中国石油天然气股份有限公司 | Throwing type pulse plugging removal and efficiency improvement process for oil-gas well |
| CN108252687A (en) * | 2018-04-08 | 2018-07-06 | 宝鸡通源石油钻采工具有限公司 | A kind of automatic liquid filling pressure drilling priming devices of TCP |
| CN111550229A (en) * | 2020-05-12 | 2020-08-18 | 燕山大学 | Heat conduction detonation delaying fracturing device and construction method |
| CN111734388A (en) * | 2020-06-30 | 2020-10-02 | 中国石油天然气股份有限公司 | Detonation and explosion transfer device with conical surface positioning structure |
| CN111734388B (en) * | 2020-06-30 | 2022-05-20 | 中国石油天然气股份有限公司 | Detonating and explosion-propagating device with conical surface positioning structure |
| CN112145143A (en) * | 2020-11-09 | 2020-12-29 | 黄山联合应用技术研究院 | Novel oil well repairing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |