CN202900202U - Low-minute level twin-core cord type delay detonating mechanism - Google Patents
Low-minute level twin-core cord type delay detonating mechanism Download PDFInfo
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- CN202900202U CN202900202U CN 201220535887 CN201220535887U CN202900202U CN 202900202 U CN202900202 U CN 202900202U CN 201220535887 CN201220535887 CN 201220535887 CN 201220535887 U CN201220535887 U CN 201220535887U CN 202900202 U CN202900202 U CN 202900202U
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Abstract
The utility model relates to a low-minute level twin-core cord type detonating mechanism which is characterized in that one end of a twin-core cord type delay assembly is connected with a burn-detonation assembly in a locking mode and then arranged in a cavity of a body. The other end of the twin-core cord type delay assembly is provided with an input connector, one end of the input connector and an igniting assembly are connected into a whole, and a multi-core delay cord is arranged in the axial direction of the twin-core cord type delay assembly. A glass fiber sleeve is coated on the outside of the multi-core delay cord and the multi-core delay cord is connected with the input connector in a locking mode. Two rows of air exhaust holes are formed in the outer wall of the body, and a through hole is formed in the bottom of the body. The low-minute level twin-core cord type detonating mechanism can be assembled in all products used for hot shooting of an oil gas well with a low-minute level, high precision and delay such as a delay detonating connector, an end signal detonator and a multi-level bar throwing explosion device. Precision and reliability of an existing low-minute level delay mechanism can be improved, so that technical support is provided for oil gas well perforation technology refined development.
Description
Technical field
The invention belongs to the Oil/gas Well explosive, relate to a kind of low minute cable-styled extension propagation of explosion of level twin-core mechanism.
Background technology
Along with the development that becomes more meticulous of perforating technology, the extension series products is widely applied in the multiple construction technologies such as classification is detonated, dynamic negative-pressure perforation.The user is to the understanding of extension series products and require also gradually to improve, from originally only pay close attention to reliability, develop into present delay precision and investigate, required to develop into multiple minute level in 10 minutes from existing height minute level and comprise the Secretaries such as low minute level.
A low minute level extension class mechanism that uses at present mainly concentrated on about two minutes, and was mainly used in classification gun perforation process, coda signal flare and the mistake interlayer perforation propagation of explosion technique.
Delay device is used for the classification gun perforation process, usually adopt " initiator+perforating gun+initiator+time-delay propagation of explosion device contain a minute level extension class mechanism+perforating gun+... " mode connects.This process using once detonation, whether the method for perforating gun is ignited in classification, by ground detection, detonate fully to judge perforating guns at different levels, thereby instruct next step construction.This just requires delay devices at different levels that quite high precision is arranged, if produce perforation time-interleaving phenomenon, can't judge then whether perforating guns at different levels detonate fully, thereby affect next step construction.
Delay device is used for the coda signal flare.Whether perforation is complete in order to detect the rifle string, usually adopts the in the end method of one-level perforating gun afterbody connection " coda signal flare ".This technique is high to the reliability requirement of delay device in the coda signal flare, if can not reliably delay time propagation of explosion, the constructor must play rifle, causes many unnecessary troubles to perforation.
In crossing interlayer TCP perforation propagation of explosion technique, usually adopt a kind of multistage caber priming device.This mechanism has the self-destruction of giving up, delay time, three kinds of functions of bump.This construction process requirement defer time and barred body are displaced to exact matching comparatively of required time of rum point.
More than three kinds of techniques reliability, the delay precision of low minute level extension class mechanism proposed very high requirement.And present level extension class mechanism employing in low minute is directly filled out charging means or is adopted powder column combined type charging means.The formula charge process is directly filled out in the common employing of tradition Delay Tube, and namely delay powder in layer is pressed onto in the cylindrical shell, and this powder charge is proper for level extension second, but because being subjected to the restriction of press and moulds of industrial equipment etc., then is difficult to realize a minute level extension.Sometimes delay for minute level that realizes this technique, several sections of seconds level Delay Tubes are connected, but this easily produces the fiery phenomenon that leaps up, and affects delay precision and reliability.Combined gunpowder delay mechanism, ZL20042004188.4 and long delay combined type gun powder period delay mechanism, ZL200720129027.6, two patents have all proposed the combined type charge process.Although this technique overcome directly fill out the formula powder charge can not fine realization the shortcoming of minute level time-delay, the precision of its extension and reliability are still not very good, the phenomenons such as fire and cutoff leap up.This technique labour intensity is very large, and this technique is very high to operating personnel's requirement in addition, therefore realizes extensive still very difficult with production in enormous quantities.In a word, more than the production technologies of two kinds low minute level extension class mechanisms, reliability and the precision of not only can't fine assurance delaying, and labour intensity is larger, production efficiency is lower, so the application of such delay device is greatly limited, and has also hindered the development that becomes more meticulous of gun perforation process.
Summary of the invention
The technical problem that solves
For fear of the deficiencies in the prior art part, the present invention proposes a kind of low minute cable-styled extension propagation of explosion of level twin-core mechanism, can realize the low reliable propagation of explosion of minute level, and the functions such as accurate delay have also reduced labour intensity, have improved operating efficiency.
Technical scheme
A kind of low minute cable-styled extension propagation of explosion of level twin-core mechanism is characterized in that comprising ignition module 1, body 2, the cable-styled extension assembly 3 of twin-core and COMBUSTION TO DETONATION TRANSITION assembly 4; One end of the cable-styled extension assembly 3 of twin-core is connected in the cavity that is placed on body 2 with COMBUSTION TO DETONATION TRANSITION assembly 4 fore shafts, and the other end of the cable-styled extension assembly 3 of twin-core is provided with input adapter 9, and an end and the ignition module 1 of input adapter 9 are closely adjacent; The cable-styled extension assembly 3 of twin-core be axially arranged with multicore extension rope 10, the multicore extension rope 10 outside fiber glass coatings 11 that coat, the position that is connected with input adapter 9 employing fore shaft mode connects; The outer wall of described body 2 is provided with two row's steam vents 7, and body 2 bottoms are provided with a through hole 8.
Described ignition module 1 comprises igniter cap 5 and igniter cap seat 6; The top of igniter cap seat 6 is provided with through hole with the level, and igniter cap 5 is assemblied in the boss of through hole; The bottom of igniter cap seat 6 is the concave station of assembled body 2 and input adapter 9.
Described input adapter 9 comprises moistureproof cap 12, tin-foil plate 13, ignition charge 14 and top connection 15; Insert ignition charge 14 in the top connection 15, an end adjacent with ignition module 1 is provided with tin-foil plate 13 and moistureproof cap 12.
Described COMBUSTION TO DETONATION TRANSITION assembly 4 comprises lower contact 16, expands flame medicament 17 and detonator 18; An end that is connected with the cable-styled extension assembly 3 of twin-core is for expanding flame medicament 17, and what be connected with expansion flame medicament 17 is detonator 18.
The diameter of described through hole 8 is slightly less than detonator 18 diameters, closely cooperates so that detonator 18 forms with aperture 8.
Described every row's steam vent is 16.
Beneficial effect
A kind of low minute cable-styled extension propagation of explosion of the level twin-core mechanism that the present invention proposes adopts twin-core extension rope, has improved the reliability of delaying.In the extension process, even a core is arranged because accidental quality problems such as degree of packing sudden change and extinguish in the extension rope, but another core in the extension rope still can normal combustion, guarantees that this mechanism reliably delays.Wrapped up layer of glass around this structure extension rope, glass fiber is thermal insulation material, can be with the burning of extension rope and extraneous relative isolation, so that the burning of extension rope is subjected to extraneous medium influence less.In addition, rope metal melt flow phenomenon often appears in the rope burning of at high temperature delaying, and affects delay precision.The fiber glass coating of the extension rope outer wrapping in this mechanism can stop the generation of this phenomenon, has guaranteed the smooth combustion of extension rope, has improved the delay precision of mechanism.Top connection and lower contact are designed to aluminum component, adopt the fore shaft mode to be fixedly connected with, and have simplified operation, have reduced labour intensity, are convenient to mass production.The COMBUSTION TO DETONATION TRANSITION assembly is equipped with and expands the flame medicine, improves the initiating ability after delaying, and namely improves the reliability of its propagation of explosion.Even between detonator and extension rope certain the air gap is arranged, do not affect the propagation of explosion function of this mechanism yet.
Description of drawings
Fig. 1 is the low minute cable-styled extension propagation of explosion of level twin-core structural scheme of mechanism;
Fig. 2 is the schematic diagram of the ignition module 1 shown in Fig. 1;
Fig. 3 is the schematic diagram of the cable-styled extension assembly 3 of the twin-core shown in Fig. 1;
Fig. 4 is the schematic diagram of the input adapter 9 shown in Fig. 5;
Fig. 5 is the schematic diagram of COMBUSTION TO DETONATION TRANSITION assembly 4 shown in Figure 1;
Fig. 6 is that the utility model is at the application example of multistage caber priming device;
The 1-ignition module, 2-body, the cable-styled extension assembly of 3-twin-core, 4-COMBUSTION TO DETONATION TRANSITION assembly, the 5-igniter cap, 6-igniter cap seat, 7-steam vent, 8-through hole, the 9-input adapter, 10-multicore extension rope, 11-fiber glass coating, the moistureproof cap of 12-, the 13-tin-foil plate, 14-ignition charge, 15-top connection, 16-lower contact, 17-expands the flame medicament, 18-detonator, upper perforating gun of 19-, 20-detonating primer, the 21-piston component, 22-delay device of the present invention, 23-detonating primer, the multistage caber priming device of 24-.
The specific embodiment
Now in conjunction with the embodiments, the invention will be further described for accompanying drawing:
As shown in Figure 1, minute cable-styled extension propagation of explosion of the level twin-core mechanism of hanging down that the utility model provides comprises ignition module 1, body 2, the cable-styled extension assembly 3 of twin-core and COMBUSTION TO DETONATION TRANSITION assembly 4.
One end of the cable-styled extension assembly 3 of twin-core is connected in the cavity that is placed on body 2 with COMBUSTION TO DETONATION TRANSITION assembly 4 fore shafts, by screw thread above three and ignition module 1 is connected as one.The other end of the cable-styled extension assembly 3 of twin-core is provided with input adapter 9, and an end and the ignition module 1 of input adapter 9 connect as one; The cable-styled extension assembly 3 of twin-core be axially arranged with multicore extension rope 10, the multicore extension rope 10 outside fiber glass coatings 11 that coat, the position that is connected with input adapter 9 employing fore shaft mode connects, as shown in Figure 3; The outer wall of described body 2 is provided with two row's steam vents 7, and every row's steam vent is 16; Body 2 bottoms are provided with a through hole 8, and the diameter of through hole 8 is slightly less than detonator 18 diameters, closely cooperate so that detonator 18 forms with aperture 8.
Described ignition module 1 comprises igniter cap 5 and igniter cap seat 6; The top of igniter cap seat 6 is provided with through hole with the level, and igniter cap 5 is assemblied in the boss of through hole; The bottom of igniter cap seat 6 is the concave station of assembled body 2 and input adapter 9.As shown in Figure 2, described igniter cap 5 is assembled in the igniter cap seat 6.
Described input adapter 9 comprises moistureproof cap 12, tin-foil plate 13, ignition charge 14 and top connection 15; Insert ignition charge 14 in the top connection 15, an end that is connected with ignition module 1 is provided with tin-foil plate 13 and moistureproof cap 12.As shown in Figure 4, the ignition charge 14 of packing in the described top connection 15, the moistureproof cap 12 that then tin-foil plate 13 will be housed is pressed in the top connection 15.
Described COMBUSTION TO DETONATION TRANSITION assembly 4 comprises lower contact 16, expands flame medicament 17 and detonator 18; An end that is connected with the cable-styled extension assembly 3 of twin-core is for expanding flame medicament 17, and what be connected with expansion flame medicament 17 is detonator 18.As shown in Figure 5, pack in the described lower contact 16 and expand flame medicine 17, detonator 18 is glued in the lower contact 16.
Be that this mechanism is at the application example of multistage caber priming device in crossing interlayer TCP perforation propagation of explosion technique such as Fig. 6.The detonation wave that a upper perforating gun 19 blasts produce is ignited the detonating primer 20 in the multistage caber priming device 24, detonating primer 20 blast pushing piston assemblies 21, ignition module 1 in piston component 21 bump these delay devices 22, ignition module 1 is got angry, light the cable-styled extension assembly 3 of twin-core, two medicine cores in the twin-core extension rope 10 carry out the while independent burning, and burning finishes, and namely finishes the extension function of this mechanism.After delaying to finish, the expansion flame medicine 17 in the COMBUSTION TO DETONATION TRANSITION assembly 4 produces detonation to adjacent with it detonator 18 powerful ignition and detonations.The adjacent with it detonating primer 23 that detonates after detonator 18 blast, thus the transmission detonation of finishing this mechanism 22 is the propagation of explosion function.
Claims (6)
1. the one kind low minute cable-styled extension propagation of explosion of level twin-core mechanism is characterized in that comprising ignition module (1), body (2), the cable-styled extension assembly of twin-core (3) and COMBUSTION TO DETONATION TRANSITION assembly (4); One end of the cable-styled extension assembly of twin-core (3) is connected in the cavity that is placed on body (2) with COMBUSTION TO DETONATION TRANSITION assembly (4) fore shaft, the other end of the cable-styled extension assembly of twin-core (3) is provided with input adapter (9), and an end of input adapter (9) is closely adjacent with ignition module (1); The cable-styled extension assembly of twin-core (3) be axially arranged with multicore extension rope (10), the outside fiber glass coating (11) that coats of multicore extension rope (10), the position that is connected with input adapter (9) employing fore shaft mode connects; The outer wall of described body (2) is provided with two row's steam vents (7), and body (2) bottom is provided with a through hole (8).
2. the described low minute cable-styled extension propagation of explosion of level twin-core mechanism according to claim 1, it is characterized in that: described ignition module (1) comprises igniter cap (5) and igniter cap seat (6); The top of igniter cap seat (6) is provided with through hole with the level, and igniter cap (5) is assemblied in the boss of through hole; The bottom of igniter cap seat (6) is the concave station of assembled body (2) and input adapter (9).
3. the described low minute cable-styled extension propagation of explosion of level twin-core mechanism according to claim 1, it is characterized in that: described input adapter (9) comprises moistureproof cap (12), tin-foil plate (13), ignition charge (14) and top connection (15); Insert ignition charge (14) in the top connection (15), an end adjacent with ignition module (1) is provided with tin-foil plate (13) and moistureproof cap (12).
4. the described low minute cable-styled extension propagation of explosion of level twin-core mechanism according to claim 1, it is characterized in that: described COMBUSTION TO DETONATION TRANSITION assembly (4) comprises lower contact (16), expands flame medicament (17) and detonator (18); An end that is connected with the cable-styled extension assembly of twin-core (3) is for expanding flame medicament (17), and what be connected with expansion flame medicament (17) is detonator (18).
5. the described low minute cable-styled extension propagation of explosion of level twin-core mechanism according to claim 1, it is characterized in that: the diameter of described through hole (8) is slightly less than detonator (18) diameter, closely cooperates so that detonator (18) forms with aperture (8).
6. the described low minute cable-styled extension propagation of explosion of level twin-core mechanism according to claim 1, it is characterized in that: described every row's steam vent is 16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220535887 CN202900202U (en) | 2012-10-18 | 2012-10-18 | Low-minute level twin-core cord type delay detonating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220535887 CN202900202U (en) | 2012-10-18 | 2012-10-18 | Low-minute level twin-core cord type delay detonating mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN202900202U true CN202900202U (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220535887 Expired - Lifetime CN202900202U (en) | 2012-10-18 | 2012-10-18 | Low-minute level twin-core cord type delay detonating mechanism |
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| CN (1) | CN202900202U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114754633A (en) * | 2022-05-25 | 2022-07-15 | 西安北方庆华机电有限公司 | Non-electric delay pushing device of pulling type |
-
2012
- 2012-10-18 CN CN 201220535887 patent/CN202900202U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114754633A (en) * | 2022-05-25 | 2022-07-15 | 西安北方庆华机电有限公司 | Non-electric delay pushing device of pulling type |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130424 |
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| CX01 | Expiry of patent term |