CN2033851U - Detonating device for buckle-loosening by explosion - Google Patents
Detonating device for buckle-loosening by explosion Download PDFInfo
- Publication number
- CN2033851U CN2033851U CN 87213748 CN87213748U CN2033851U CN 2033851 U CN2033851 U CN 2033851U CN 87213748 CN87213748 CN 87213748 CN 87213748 U CN87213748 U CN 87213748U CN 2033851 U CN2033851 U CN 2033851U
- Authority
- CN
- China
- Prior art keywords
- pressure reducing
- reducing sleeve
- electric cap
- flushing fluid
- pressure
- 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 - Lifetime
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- Manufacturing Of Electrical Connectors (AREA)
Abstract
The device is principally used for the absolving drill pipe sticking accident of a drill tool which adopts the method of buckle-loosening by explosion. The device is composed of an electric detonator or an igniting mechanism and an addition pressure reducing sleeve. The addition pressure reducing sleeve reduces the direct pressure of a flushing fluid post towards the electric cap or the igniting mechanism. In order to avoid the flushing fluid wedging in the electric detonator or the igniting mechanism and the local deformation of the addition pressure reducing sleeve, and insulating liquid or insulating compound is injected in the pressure reducing sleeve. The device can work under the condition that the pressure of the flushing fluid post is 1000 kg/cm + [2]. The insulating liquid or insulating compound doesn't need to inject, if the intensity of the pressure reducing sleeve is ample and seal reliable.
Description
Breakouting pack of dynamite is to get rid of one of common method that drilling tool is blocked in the drilling process.Its basic principle is to use the cable of perforation winch under the condition that gives the certain reaction torque of drilling tool, connects a firing device, ignites the detonating fuse bundle, produces vibrations, and drilling tool is released, thereby removes down-hole equipment by the card accident.The maximum pressure that firing device bore that uses in the present above-mentioned activities is 600kg/cm
2,, just can not normally carry out work when down-hole flushing fluid column pressure surpasses this numerical value.
Go into the well interior drilling tool by the card accident in order to remove deep-well and high specific gravity flushing fluid condition, need to improve the operating pressure that firing device can bear.The utility model proposes and a kind ofly open quick-fried device by what electric cap or firing device (following for sake of convenience electric cap and firing device are referred to as electric cap) and additional pressure reducing sleeve were formed.The outer pressure reducing sleeve of electric cap has reduced the direct pressure of well-flushing fluid column to electric cap, makes the direct pressure of the actual pressure that bears of electric cap less than extraneous well-flushing fluid column.For preventing that flushing fluid from clamp-oning pressure reducing sleeve and pressure reducing sleeve local distortion under high pressure, can in pressure reducing sleeve, fill iknsulating liquid or insulating compound, so that electric cap do not miss-fire, make this device can be at flushing fluid column pressure 1000kg/cm
2Condition under operate as normal.
The principle and the structure of this device are described with an example below:
Fig. 1 is an example of the present utility model.Wherein:
1. high pressure sealing plug (standard component of electrical measurement downhole probe)
2. hollow nut 9. seal nipples are introduced line
3. powder squib 10. ground straps
4. detonating fuse is drawn joint 11. electric cap lead-out wires
5. seal nipple 12. drilling tool walls
6. electric cap 13. iknsulating liquids or insulating compound
7. detonating fuse 14. flushing fluids
8. seal nipple lead-out wire
Electric cap 6 is sealed in by powder squib 3, high pressure sealing plug 1 hollow nut 2, detonating fuse and draws in the additional pressure reducing sleeve that joint 4 and seal nipple 5 form, and flushing fluid 14 heads of liquid mainly act on the additional pressure reducing sleeve.Enough and the detonating fuse 7 when the intensity of pressure reducing sleeve, detonating fuse are drawn the sealing of joint 4 when reliable, and electric cap does not directly bear or only bear the pressure of fraction well-flushing fluid column.Like this, the actual pressure that bears of electric cap is lower than the flushing fluid column pressure, thus make this device can be under the condition of the actual working pressure that surpasses electric cap operate as normal.
The afterbody and the detonating fuse exit 7 usefulness high pressure adhesive plasters of drawing joint 4 at detonating fuse twine 3～5 layers, play fixing and sealing function.Behind perforation winch power connection, electric cap opens quick-fried, ignites detonating fuse, and then ignites the detonating fuse bundle, produces vibrations, is released by the bit freezing tool in the down-hole.
Pouring into iknsulating liquid or insulating compound 3 in the additional pressure reducing sleeve, as transformer oil, silicone oil and butter etc., is in order to prevent that under the well inner high voltage flushing fluid is clamp-oned additional pressure reducing sleeve, electric cap is made moist and miss-fires.In addition, can prevent that also additional pressure reducing sleeve under high pressure producing local distortion, produces high pressure or damage to electric cap.Therefore additional pressure reducing sleeve intensity is enough and sealing is reliable.Also can not pour into iknsulating liquid or insulating compound.
Because additional pressure reducing sleeve has born most of pressure of well-flushing fluid column, enough and under the reliable sealing situation, electric cap can adopt common normal pressure electric cap, also can adopt the firing device of existing use in additional pressure reducing sleeve intensity.
By the difference of the structure of bit freezing tool and processing conditions, under the enough and reliable sealing situation, all can select by its physical dimension, appearance and size in guaranteed strength for additional pressure reducing sleeve according to the down-hole, and its face shaping can be Cylinder, cuboid and other solid.
Claims (5)
1, a kind of quick-fried device of opening of breakouting pack of dynamite that is used for adopts electric cap to ignite, and it is characterized in that: this device is made up of electric cap and additional pressure reducing sleeve, and pressure reducing sleeve has reduced the pressure of well-flushing fluid column to electric cap, makes this device can be at 1000kg/cm
2Condition under operate as normal.
2, according to claim 1ly open quick-fried device, it is characterized in that the structure of additional pressure reducing sleeve, physical dimension and outward appearance physical dimension can be selected according to actual needs.
3, according to claim 1ly open quick-fried device, it is characterized in that to pour into iknsulating liquid or insulating compound in the additional pressure reducing sleeve, also can not pour into iknsulating liquid or insulating compound.
4, according to claim 1ly opening quick-fried device, it is characterized in that the electric cap that uses can be common normal pressure electric cap, also can be firing device.
5, according to claim 1ly open quick-fried device, it is characterized in that the face shaping of additional pressure reducing sleeve can be Cylinder, cuboid and other solid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87213748 CN2033851U (en) | 1987-09-23 | 1987-09-23 | Detonating device for buckle-loosening by explosion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87213748 CN2033851U (en) | 1987-09-23 | 1987-09-23 | Detonating device for buckle-loosening by explosion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2033851U true CN2033851U (en) | 1989-03-08 |
Family
ID=4828186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87213748 Expired - Lifetime CN2033851U (en) | 1987-09-23 | 1987-09-23 | Detonating device for buckle-loosening by explosion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2033851U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102383752A (en) * | 2010-09-01 | 2012-03-21 | 中国石油天然气股份有限公司 | Novel releasing, explosion and buckle loosening method and device for extended reach well and horizontal well |
| CN101726222B (en) * | 2009-11-19 | 2012-11-28 | 西安近代化学研究所 | Adjustable-charge high-pressure resistance device for breakouting pack of dynamite |
| CN104265224A (en) * | 2014-07-31 | 2015-01-07 | 西安石油大学 | Fast unclamping device realizing oil well drill clamping object directional explosion impact failure separation |
-
1987
- 1987-09-23 CN CN 87213748 patent/CN2033851U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101726222B (en) * | 2009-11-19 | 2012-11-28 | 西安近代化学研究所 | Adjustable-charge high-pressure resistance device for breakouting pack of dynamite |
| CN102383752A (en) * | 2010-09-01 | 2012-03-21 | 中国石油天然气股份有限公司 | Novel releasing, explosion and buckle loosening method and device for extended reach well and horizontal well |
| CN104265224A (en) * | 2014-07-31 | 2015-01-07 | 西安石油大学 | Fast unclamping device realizing oil well drill clamping object directional explosion impact failure separation |
| CN104265224B (en) * | 2014-07-31 | 2017-02-01 | 西安石油大学 | Fast unclamping device realizing oil well drill clamping object directional explosion impact failure separation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |