CN201620849U - Detonation wave graded exploder - Google Patents
Detonation wave graded exploder Download PDFInfo
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- CN201620849U CN201620849U CN2009202451414U CN200920245141U CN201620849U CN 201620849 U CN201620849 U CN 201620849U CN 2009202451414 U CN2009202451414 U CN 2009202451414U CN 200920245141 U CN200920245141 U CN 200920245141U CN 201620849 U CN201620849 U CN 201620849U
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- detonator
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Abstract
The utility model discloses a detonation wave graded exploder which can be used as a secondary gun string exploder in a perforation job tube string of an oil well or a gas well. The exploder comprises a connector, a fire work component and a plurality of O-shaped sealing rings, wherein the fire work component consists of a through bulkhead initiator installed with a first detonator and ignition powder, and an explosive component installed with a second detonator and a booster tube, wherein the explosive component is installed in an inner hole of the connector, and is sealed by the sealing ring. When in the perforation operation, screw buckles at two ends of the connector are respectively connected with an upper-grade perforating gun and a lower-grade perforating gun; and the input end of the fire work component receives the detonation wave of the upper-grade perforating gun so as to excite the explosion of the first detonator; the detonation wave penetrates through an explosion-proof plate of the through bulkhead initiator, then the explosive component is detonated by the ignition powder, and high-energy detonation wave is output to the lower-grade penetrating gun. The detonation wave graded exploder has the advantages of being used without the restriction of well conditions, being capable of sealing the tube string of each grade, and improving the perforation effect, and the like.
Description
Technical field
The utility model belongs to oil, gas well perforating technology field, relate generally to the initiator of the secondary perforating gun string that is used in the perforation pipe string to detonate, relate in particular to a kind of perforation that detonates that is applicable to long perforated interval, use detonating and priming device that horizontal well perforation that can't the working pressure initiator detonates of first perforating gun behind the excessive interlayer of detonating fuse.
Background technology
At present, in the widely used oil tube transmission perforation technology of domestic oil gas field, the priming device of the secondary perforating gun that is used in the perforation pipe string to detonate mainly is pressure type priming device and multistage caber priming device.As rolling up on the 1st phase in 2003 12 at Chinese periodical " examination of oil gas well surveying ", disclose multistage detonating technique in the article that a piece is entitled as " the multistage underbalance perforating technology of detonating of tubing transmission ", wherein selected different secondary detonation modes to be the various combination of pressure mode and caber mode according to different well ' s conditions.
The priming device of known a kind of secondary perforating gun that detonates is the pressure priming device.When elementary detonation mode is a caber when detonating, the shock wave that produces in the down-hole when utilizing elementary rifle perforation drives the pressure detonator on each secondary rifle, realizes that whole oil reservoirs once penetrate out; When elementary detonation mode is that pressure is when detonating, carry out the well head pressurization during construction, when the well head pressurization surpasses the shear pin shear force with the borehole pressure sum, the pressure-bearing pin is cut off, the descending percussion fire-working component of striker, ignite detonating fuse, elementary rifle is at first detonated, and then the initiator that drives on each secondary rifle detonates in succession.Adopt the requirement of this mode design aspect relatively stricter, calculation requirement is very accurate.The installation site of priming device, firing order are wanted rationally, and the safety value of each initiator is all more approaching.In addition, because hole condition difference in the different wells has to leak when pressing and then will carry out can realizing that just pressure detonates, and wastes time and energy after mending-leakage or the supercharging operation.
The priming device that known another kind can be crossed interlayer is multistage caber priming device, utilizes the detonation of upper level perforating gun detonation to ignite this device, discharges caber bump next stage priming device.But be to use its sandwich segment length requirement that passes through of multistage caber matching requirements greater than 10m less than 100m.Be out of use in hole deviation in greater than 30 ° inclined shaft and horizontal well in addition.
In the perforation construction operation, often run into and adopt detonating fuse to pass through than behind the big interlayer, the detonation wave energy is decayed to some extent.Use its propagation of explosion effect of general transmission detonation joint undesirable, be prone to poorly sealed, oil pipe water inlet, making first perforating gun behind the interlayer gun detonation occur changes detonation or disconnected quick-fried phenomenon.The detonation wave energy weakens, and produces detonation, then can cause fried rifle and fall serious consequence such as rifle.Therefore, need that research is a kind of to be need not to consider various hole conditions and interlayer factor and make that each secondary perforating gun is reliable in the perforation pipe string realizes detonating function in perforating job, and can seal the priming device of each secondary perforation pipe string.
The utility model content
The technical problems to be solved in the utility model is, the classification priming device of a kind of reliable effect, simple in structure, need not to consider to detonate compound mode and salable perforating gun strings at different levels is provided for the secondary perforation pipe string at different well ' s conditions oil well in the oil well perforation construction operation.
For solving the problems of the technologies described above, the classification priming device that the utility model provides comprises connector, fire-working component and some sealing rings, described connector has central through hole and two ends all have the spiral shell button that is connected with perforating gun, and described fire-working component is connected in the centre bore of connector and by described sealing ring and seals; Described fire-working component comprises body, through-bulkhead initiator, first detonator, second detonator, ignition powder and propagation squib, body is the pipe shape, its inside is provided with pilot hole and three location and installation holes successively by input to output, through-bulkhead initiator is that cylinder and outer wall have the circumferential seal groove, its input has first blind hole, output has second blind hole, described first detonator is installed in first blind hole, be pressed into described ignition powder in second blind hole, install in the first location and installation hole adjacent of packing into behind the described sealing ring in the seal groove of through-bulkhead initiator with described pilot hole and the input of described first detonator over against pilot hole, described second detonator and described propagation squib are connected in second respectively, in the 3rd location and installation hole and the input of described second detonator adjacent with described ignition powder.
According to the utility model, described ignition powder is made up of ignition charge and primer mixture, and ignition charge and primer mixture branch are laminated in described second blind hole, and primer mixture contacts with second blind hole bottom, and ignition charge is positioned at the port of second blind hole.
According to the utility model, described first, second detonator forms by heatproof primer mixture and explosive compacting, and the overall dimensions of first detonator is less than the overall dimensions of second detonator; Described propagation squib is formed by 6 high explosives compacting poly-difficult to understand.
According to the utility model, also comprise a detonator seat and one blast housing, described detonator seat is that U type shell and bottom have the propagation of explosion hole, described second detonator be connected in the detonator seat and its input over against described propagation of explosion hole; Described blast housing is the convex cylindrical body that has one-level ladder centre bore, and described detonator seat is connected in the ladder macropore, and described propagation squib is connected in the ladder aperture; The big small end of described blast housing lay respectively in second, third location and installation hole of described body and described propagation of explosion hole over against described ignition powder.
The beneficial effects of the utility model are embodied in the following aspects.
(1) the utility model adopts detonation wave as input excitation energy form, accepts detonation wave by little detonator on the through-bulkhead initiator, through the through-bulkhead initiator blast assembly that detonates.Remedied and in gun perforation process, can't adopt the detonate detonation mode of well section of pressure or caber.
(2) body contour structures of the present utility model is designed to join the gun joint form, compares with general initiator, and is not only simple in structure and can reduce the perforation blind area; Sealing ring all is housed on the body of fire-working component and the through-bulkhead initiator, can plays the sealing impermeable role,, thereby guarantee that higher level's perforation situation does not influence subordinate so that each perforation pipe string is seal independently.
(3) if the utility model is connected use with time-delay propagation of explosion device, will detonate the classification of perforation pipe string, and can play and reduce the effect of detonation pressure the tubing and casing damage.
(4) the utility model can amplify the more weak detonation wave energy of higher level's perforating gun output and output, improves the stability of energy transmission, improves perforation efficiency; The detonator that uses in the utility model in addition, propagation squib is approved product, so can be mass-produced.
Description of drawings
Fig. 1 is that the structure of the utility model detonation wave classification priming device is formed schematic diagram.
The specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing and preferred embodiment.
As shown in Figure 1, the preferred embodiment of detonation wave classification priming device comprises connector 1, fire-working component and some O RunddichtringOs 11.The hollow notch cuttype cylindrical structure that connector 1 is made into for No. 45 steel of employing, its input, output have a spiral shell button that is connected with perforating gun, the button-type of spiral shell button is decided according to institute's connection perforating gun type, in this preferred embodiment, the button-type of connector 1 input is public spiral shell button, and the button-type of output is female spiral shell button; In input one side of connector 1, outer wall is provided with two circumferential seal grooves, and the centre bore port is provided with locating surface and the locating surface outside is screw; Also be provided with on the middle part outer wall of connector 1 and be convenient to two driving holes that mount is used.
Fire-working component comprises body, through-bulkhead initiator 3, first detonator 4, second detonator 9, detonator seat 6, blast housing 7, ignition powder 5 and propagation squib 10.Body is made up of upper body 2 and following body 8, and both all adopt No. 45 steel to make, and upper body 2 is a convex pipe shape, and its larger diameter end is provided with external screw thread, and smaller diameter end is provided with internal thread, and the outer wall of smaller diameter end is provided with two circumferential seal grooves and close larger diameter end; Upper body 2 has been set gradually by input to internal thread place and has been beneficial to detonating fuse and detonating primer pilot hole that inserts and the first location and installation hole that through-bulkhead initiator 3 is installed.Following body 8 is the convex cylindrical body, and its protruding end has external screw thread, and endoporus is provided with second, third location and installation hole that diameter does not wait.The cylindrical shape of through-bulkhead initiator 3 for adopting the 1Cr18Ni9Ti material to make, outer wall is provided with two circumferential seal grooves, its input is provided with first blind hole of Φ 6.5mm * 10.5mm, output is provided with second blind hole of Φ 5.6mm * 5mm, and the block board thickness between first blind hole and second blind hole is 3.5mm.Detonator seat 6 has the U type aluminum shell in propagation of explosion hole for the bottom.Blast housing 7 is for having the convex cylindrical body of one-level ladder centre bore.First, second detonator 4,9 forms by heatproof primer mixture and explosive compacting.Propagation squib is formed by 6 high explosives compacting poly-difficult to understand.Ignition powder 5 is made up of ignition charge and primer mixture.
The assembly technology of this preferred embodiment is that second detonator, the 9 usefulness curing glue that will suppress earlier are fixed in the detonator seat 6 and make the propagation of explosion hole of the input aligning detonator seat 6 of second detonator 9.Propagation squib 10 is put into the ladder aperture of blast housing 7, and detonator seat 6 usefulness the curing glue that second detonator 9 will be housed again are fixed in the ladder macropore of blast housing 7, thereby form the assembly that explodes.The assembly that will explode is packed into down in the body 8, and the merging that matches of the convex of blast housing 7 and second, third location and installation hole in the following body is fixed with curing glue.Earlier primer mixture is pressed in second blind hole of through-bulkhead initiator 3, forms ignition powder 5 of the present invention thereby be pressed into ignition charge again in the port.First detonator 4 packed at the bottom of the hole of first blind hole of through-bulkhead initiator 3 and fixing with solidifying.After loading onto suitable sealing ring 11 in two seal grooves on the through-bulkhead initiator 3 through-bulkhead initiator 3 is advanced the first location and installation hole of upper body 2 and shifts the chucking position onto.The following body 8 that the blast assembly is housed is threaded with upper body 2 and constitutes fire-working component.With the suitable sealing ring 11 of assembling on two seal grooves of upper body 2 outer walls of fire-working component, again whole fire-working component is packed into the centre bore of connector and the external screw thread of upper body 2 is connected with the internal thread of connector from the input of connector 1, connection of thread is twisted flat i.e. assembling and is finished.
When carrying out perforating job, buckle with the superior and the subordinate perforating guns by the connection rifle spiral shell at connector 1 two ends and to be connected.The course of work of the present invention is, the input of fire-working component receives the detonation wave of higher level's perforating gun and excites first detonator 4 to detonate, detonation wave penetrates shot point powder composition 5 behind the flame proof plate of through-bulkhead initiator 3 and lights second detonator 9, immediately, second detonator 9 is ignited propagation squib 10 and is exported the high energy detonation wave to subordinate's perforating gun.
Claims (4)
1. detonation wave classification priming device, comprise connector [1], fire-working component and some sealing rings [11], it is characterized in that: described connector [1] has central through hole and two ends all have the spiral shell button that is connected with perforating gun, and described fire-working component is connected in the centre bore of connector [1] and seals by described sealing ring [11]; Described fire-working component comprises body, through-bulkhead initiator [3], first detonator [4], second detonator [9], ignition powder [5] and propagation squib [10], body is the pipe shape, its inside is provided with pilot hole and three location and installation holes successively by input to output, through-bulkhead initiator [3] has the circumferential seal groove for cylinder and outer wall, its input has first blind hole, output has second blind hole, described first detonator [4] is installed in first blind hole, be pressed into described ignition powder [5] in second blind hole, install in the first location and installation hole adjacent of packing into behind the sealing ring [11] in the seal groove of through-bulkhead initiator [3] with pilot hole and the input of described first detonator [4] over against pilot hole, described second detonator [9] and propagation squib [10] are connected in second respectively, in the 3rd location and installation hole and the input of described second detonator [9] adjacent with described ignition powder [5].
2. detonation wave classification priming device according to claim 1, it is characterized in that: described ignition powder [5] is made up of primer mixture and ignition charge, primer mixture and ignition charge branch are laminated in second blind hole, and primer mixture contacts with second blind hole bottom, and ignition charge is positioned at the port of second blind hole.
3. detonation wave classification priming device according to claim 1 is characterized in that: described first, second detonator [4,9] forms by heatproof primer mixture and explosive compacting, and the overall dimensions of first detonator [4] is less than the overall dimensions of second detonator [9]; Described propagation squib [10] is formed by 6 high explosives compacting poly-difficult to understand.
4. according to claim 1 or 2 or 3 described detonation wave classification priming devices, it is characterized in that: also comprise a detonator seat [6] and a blast housing [7], described detonator seat [6] is for U type shell and bottom have the propagation of explosion hole, described second detonator [9] be connected in the detonator seat [6] and its input over against described propagation of explosion hole; Described blast housing [7] is for having the convex cylindrical body of one-level ladder centre bore, and described detonator seat [6] is connected in the ladder macropore, and described propagation squib [10] is connected in the ladder aperture; The big small end of described blast housing [7] lay respectively in second, third location and installation hole of described body and described propagation of explosion hole over against described ignition powder [5].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202451414U CN201620849U (en) | 2009-11-06 | 2009-11-06 | Detonation wave graded exploder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202451414U CN201620849U (en) | 2009-11-06 | 2009-11-06 | Detonation wave graded exploder |
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| Publication Number | Publication Date |
|---|---|
| CN201620849U true CN201620849U (en) | 2010-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009202451414U Expired - Fee Related CN201620849U (en) | 2009-11-06 | 2009-11-06 | Detonation wave graded exploder |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133129A (en) * | 2013-02-08 | 2013-06-05 | 浣石 | Pressure control device using explosive initiation process |
| CN108374651A (en) * | 2017-12-05 | 2018-08-07 | 西安物华巨能爆破器材有限责任公司 | A kind of perforating oil gas well feed liquor explosion arrestment explosion propagation device |
| CN111306991A (en) * | 2018-12-12 | 2020-06-19 | 北京动力机械研究所 | Broken opening device of blanking cover |
| CN115234202A (en) * | 2022-06-30 | 2022-10-25 | 川南航天能源科技有限公司 | Full-flow circulation type continuous oil pipe multistage perforating method |
-
2009
- 2009-11-06 CN CN2009202451414U patent/CN201620849U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133129A (en) * | 2013-02-08 | 2013-06-05 | 浣石 | Pressure control device using explosive initiation process |
| CN108374651A (en) * | 2017-12-05 | 2018-08-07 | 西安物华巨能爆破器材有限责任公司 | A kind of perforating oil gas well feed liquor explosion arrestment explosion propagation device |
| CN111306991A (en) * | 2018-12-12 | 2020-06-19 | 北京动力机械研究所 | Broken opening device of blanking cover |
| CN115234202A (en) * | 2022-06-30 | 2022-10-25 | 川南航天能源科技有限公司 | Full-flow circulation type continuous oil pipe multistage perforating method |
| CN115234202B (en) * | 2022-06-30 | 2024-03-12 | 川南航天能源科技有限公司 | Full-flow circulating type continuous oil pipe multistage perforation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160818 Address after: 710061 No. 213 rosefinch Avenue, Yanta District, Shaanxi, Xi'an Patentee after: Xi'an Wuhua Energy Exploding Equipment Co.,Ltd. Address before: 710061 No. 213 rosefinch Avenue, Yanta District, Shaanxi, Xi'an Patentee before: No.213 Research Institute of China North Industries Group Corporation |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101103 Termination date: 20171106 |
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| CF01 | Termination of patent right due to non-payment of annual fee |