CN202100246U - Safety redundant ignition device - Google Patents
Safety redundant ignition device Download PDFInfo
- Publication number
- CN202100246U CN202100246U CN2011201585245U CN201120158524U CN202100246U CN 202100246 U CN202100246 U CN 202100246U CN 2011201585245 U CN2011201585245 U CN 2011201585245U CN 201120158524 U CN201120158524 U CN 201120158524U CN 202100246 U CN202100246 U CN 202100246U
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- China
- Prior art keywords
- hole
- initiator
- seat
- firing
- safety
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- 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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Abstract
The utility model discloses a safety redundant ignition device, which can be used as an initiator for the completion and perforation of oil and gas wells. The initiator capable of being individually packaged and transported adopts a double-ignition structure and can improve the detonation reliability and the storage and transportation safety of the safety redundant ignition device. The safety redundant ignition device is characterized in that the piston component of the mechanical assembly of the device bears the pressure via a single pin. The bottom of the piston rod is a spherical surface and a firing pin assembly is in concavo-convex connection with the initiator. The firing pin assembly is equipped with two firing pins. Two igniter caps and two first detonators are arranged on the igniter cap holder of the initiator and are positioned in the center. A second detonator and an explosion-expanding tube are closely connected with the first detonators. The retaining ring of the initiator is threadedly connected with the body of the safety redundant ignition device for compressing and fixing the initiator. The safety redundant ignition device is compact in structure and convenient and simple to assemble. The initiator capable of being individually packaged and transported is safe in operation and reliable in performance.
Description
Technical field
The utility model belongs to the perforating oil gas well technical field, relates generally to completion perforating and uses priming device, relates in particular to the redundant priming device of getting angry of a kind of safety.
Background technology
The priming device that uses at the oil gas field completion perforating mainly is made up of mechanical assembly (machine adds part) and initiator (firer's part), and wherein the common requirement of initiator can be packed separately, transports and stored.What generally use in the oil field at present is single ignition firer part, if unexpected misfire in use occurs, then needs again with carrying the replacing priming device on the perforating gun string.If the initiator in the priming device adopts the redundant structure of getting angry, then can greatly improve the reliability of product effect.
Element is all bonding finishes for igniter cap and detonator etc. in the known existing pair of ignition priming device; In independent transportation, meet accident in order to prevent firing pin percussion cap, do not assemble firing pin in manufacturer usually; When Product transport behind the oil field by user of service's being made by manufacturers or users firer's part and firing pin; Its consequence is to use personnel operate miss such as to adorn with firing pin is counter, and phenomenons such as initiator can not normally detonate take place, and exists certain potential safety hazard.
The utility model content
The technical problem that the utility model will solve is, for providing a kind of compact conformation, complete, the mechanical assembly of assembling and initiator, can transport separately the oil gas well completion perforation, and reliable effect, and can realize the redundant sparking gear of safety of storing and transporting security.
For solving the problems of the technologies described above; The redundant sparking gear of the safety that the utility model provides comprises body, piston, piston bush, activity template, firing pin assembly, two-way initiator and back-up ring; Have several inlet openings and sediment outflow window on the tube wall of said body; The upper end has the box thread that is connected with oil pipe; The lower end has the male thread that is connected with perforating gun; It is characterized in that: said body lower end ecto-entad has first to the 5th hole successively, and the sealing of said piston bush is installed in the 4th hole, the 5th hole of said body and the cascaded surface on the piston bush contacts the location with cascaded surface between said the 4th hole and the 5th hole, and said piston middle and lower part seals to be installed in the piston bush and through first shear pin and radially is connected; Said activity template is arranged in the hole enlargement chamber of piston bush lower end; The firing pin assembly contains striker post and two firing pins; Striker post is that two ends are big and middlely be the hollow cylinder structure of stairstepping recessed structures; Big end has two hit pinholes before it; The preceding big end of striker post is threaded with the 3rd hole of body, trapezoidal recessed structures of scala media and big second hole that is arranged in body of holding, back; The tip of two firing pins lays respectively in two hit pinholes and big end contacts with said activity template, with second shear pin said two firing pins and striker post is connected; In said two-way initiator; The igniter cap seat has two I-shaped flash holes; Two equal correspondences of cross-drilled hole in each I-shaped flash hole the be connected igniter cap and first detonator; The igniter cap seat is connected in the front end installing hole of propagation squib seat, and second detonator and propagation squib are connected in the middle-end installing hole and rear end installing hole of said propagation squib seat successively, and the front end of propagation squib seat is inserted in the back big end endoporus of said striker post; The front end of said igniter cap seat be positioned on the rear side end face of big end before the said striker post and said two I-shaped flash holes and said two firing pins one by one over against, the rear end of propagation squib seat then is arranged in first hole of body; Said back-up ring is through the outer cascaded surface location of the shoulder hole and the said propagation squib seat of its front end, and the rear end of back-up ring then is threaded with first hole of body.
The beneficial effect of the utility model is embodied in the following aspects.
(1) the striker post structure design of the utility model is ingenious, and its circle center is provided with two hit pinholes, and the outside is provided with screw thread, and internal construction is recessed terraced steps, make like this can with firing pin be assembled to behind the striker post and directly with the firing pin assembled to body.Just can realize that in producer the assembling of product machinery assembly is complete like this, in transportation, can realize independent transportation, the storage of mechanical assembly and initiator, can not exist unnecessary machine-made spares to need the problem of assembling separately.Thereby avoided phenomenons such as oil field user of service's maloperation, guaranteed safe in utilization.
(2) initiator of the utility model is the two-way initiator, promptly is made up of two igniter caps, two first detonators, second detonator, propagation squib, igniter cap seat, detonator seat and propagation squib seats.The initiator compact conformation that assembles can be packed accumulating as requested separately.The igniter cap end of initiator and the internal construction of firing pin assembly are concave-convex design, needn't consider the influence of firing pin, and personnel easy to use install initiator.Therefore the utility model not only designs ingenious, compact conformation but also can guarantee to store and transport safety, and is easy to use, improved the safety and the practicality of sparking gear thus.
Description of drawings
Fig. 1 is that the structure of the redundant sparking gear of the utility model safety is formed sketch map.
Fig. 2 is the sketch map that concerns of assembly of firing pin shown in Fig. 1 and two-way initiator.
Fig. 3 is the cut-away view of striker post in the utility model.
Fig. 4 is the schematic appearance of two-way initiator.
The specific embodiment
Below in conjunction with accompanying drawing and preferred embodiment the utility model is done further to detail.
As shown in Figure 1, the utility model preferred embodiment comprises body 1, piston 2, piston bush 3, first shear pin 12, activity template 4, firing pin assembly, two-way initiator and back-up ring 8.Body 1 is the hollow ladder cylinder made of No. 45 steel and is provided with variable cross-section aditus laryngis and ladder hole group along axis, and the one of which end is provided with the box thread that connects oil pipe, and the other end is provided with the male thread of connection perforating gun; Outer wall is provided with four radial direction through hole and two rectangle sediment outflow windows for alternate 90 °; The variable cross-section aditus laryngis is positioned at box thread one end; Playing each hole by the box thread end puts in order and is screwed hole, cylindrical hole and taper hole; The osculum end diameter of taper hole is 22 ° for
cone angle; The diameter of cylindrical hole is positioned at the male thread end for
ladder hole group; From the male thread end; First hole is the screwed hole of M40X2; Second hole is the cylindrical hole of diameter
; The 3rd hole is the screwed hole of M34X2; The 4th hole is the cylindrical hole of diameter
, and the 5th hole is the cylindrical hole of diameter
.
On the outer wall middle part of piston 2 the two seals circle is housed; The body of rod diameter of seal groove upper end for
lower end diameter for
apart from the radially pin hole that 15mm place, piston 2 bottom is provided with
, there is the fillet of R5mm the bottom and near hemispherical.Piston bush 3 selects for use T10 or T8 material to become cavity notch cuttype cylinder; Its reduced diameter section external diameter is that
enlarged diameter section external diameter is suitable with body 1 the 4th bore dia, and the two seals groove is housed on the outer wall of enlarged diameter section; The internal diameter of piston bush 3 working chambers is for
and the chamber wall is provided with the pin hole of symmetry perforation and the pin hole on this hole and the piston 2 is a drilling; Section is provided with diameter and highly be the hole enlargement chamber of 13mm for
at the bottom of piston bush 3 inner chambers, and promptly the change of working chamber diameter is greatly relatively.The larger diameter end of piston bush 3 is arranged in the 4th hole of body 1, stretch to behind the location, the 5th hole of the other end through reduced diameter section and body 1 rectangle sediment outflow window right position.The enlarged diameter section of piston 2 cooperate with the working chamber of piston bush 3 and both pin hole in first shear pin 12 is installed.Activity template 4 is that the disk and the periphery of superduralumin LC4 material is arc surface.Activity template 4 is put into the hole enlargement chamber of piston bush 3, and it receives the bump of piston on the one hand, contacts with the firing pin assembly on the other hand, plays the effect of percussion primer.
According to shown in Figure 2, the firing pin assembly contains striker post 6, second shear pin 11 and two firing pins 5.Striker post 6 is the hollow cylinder structure (referring to Fig. 3) of stairstepping recessed structures for big centre, two ends, and big end has two hit pinholes before it, and outer wall is then held in the external screw thread that is provided with seal groove and M34X2 and the seal groove and had the pin hole that two walls run through.Two firing pins 5 are notch cuttype cylindrical rods of being processed by T10 or T8 material; Its outside diameter requires modulation treatment for
tip diameter for
firing pin 5, to obtain higher hardness.The external screw thread of striker post 6 is connected with the 3rd hole of body 1, trapezoidal recessed structures of scala media and big second hole that is arranged in body 1 of holding, back, and the tip of two firing pins 5 lays respectively in two hit pinholes and larger diameter end then contacts with activity template 4.
The two-way initiator contains propagation squib seat 7, detonator seat 9, igniter cap seat 10, two igniter caps 13, two first detonators 14, second detonator 15 and propagation squibs 16, and its profile is referring to Fig. 4.Propagation squib seat 7 is the notch cuttype cylindrical shell at the bottom of the band; Base thickness is 0.3mm; Its each hole is followed successively by the cylindrical hole of
and the screwed hole of M20x1, and its small end outer wall is equipped with sealing ring.Block 9 is a detonator diameter
inner diameter
cylinder; fire and cap holder 10 along the length of the cylinder-shaped with two fire-hole, the bottom of the outer cylinder with M20x1 male thread.Igniter cap 13 is formed by primer mixture compacting, and first detonator 14, the second detonator detonator 15 form by heatproof primer mixture and explosive compacting, and the overall dimensions of first detonator 14 is less than the overall dimensions of second detonator 15; Propagation squib 16 forms by gathering 6 high explosives compacting difficult to understand.Earlier be fixed on the igniter cap that suppresses 13 usefulness curing glue in the cross-drilled hole of igniter cap seat 10 I-shaped flash hole one ends and make the output of igniter cap 13 aim at the vertical core of I-shaped flash hole, again two first detonators, 14 usefulness curing glue are fixed in the cross-drilled hole of the igniter cap seat 10 I shape flash hole other ends.Propagation squib 16 is put into the ladder aperture of propagation squib seat 7, and the detonator seat 9 usefulness curing glue that will be stained with second detonator 15 again are fixed in the ladder macropore of propagation squib seat 7, form the two-way initiator thereby then igniter cap seat 10 is screwed in the screwed hole of propagation squib seat 7.Propagation squib seat 7 front ends are inserted in the endoporus of back big end of striker post 6; The front end of igniter cap seat 10 be positioned on the rear side end faces of big end before the striker post 6 and two I-shaped flash holes and two firing pins 5 one by one over against, the rear end of propagation squib seat 7 then is arranged in first hole of body 1.
The hollow cylinder that back-up ring 8 is made by steel; Its front end has shoulder hole; The outside, rear end is provided with the M40X2 screw thread; For ease of installing, be provided with the driving hole of two
dark 5 in the lower surface of back-up ring 8.Back-up ring 8 is through the outer cascaded surface location of the shoulder hole and the said propagation squib seat 7 of its front end, and the rear end of back-up ring 8 then is threaded with first hole of body 1.
Usually answer customer demand, the two-way initiator needs independent packed and transported and storage, so do not assemble the two-way initiator in manufacturer.During use, the user only needs to back out back-up ring 8 from body 1, and the back-up ring of screwing on again behind the two-way initiator of packing into twists 8 and compress the two-way initiator and get final product.
When carrying out perforating job, to buckle with the upper end oil pipe through the couplet oil pipe spiral shell of body 1 input and to be connected, output is connected with the subordinate perforating gun.The course of work of the utility model is; The input of piston 2 begins descending when receiving external force effect (caber bump), act on the activity template 4 after cutting off first shear pin 12, and activity template 4 presses two firing pins 5 downwards; Clash into each self-corresponding igniter cap 13 and ignite first detonator 14; Subsequently, two or one first detonator 14 ignition, second detonator 15, the second detonators, 15 ignition propagation squibs 16 and downward output detonation wave ignition perforating gun.
Claims (3)
1. redundant sparking gear of safety; Comprise body [1], piston [2], piston bush [3], activity template [4], firing pin assembly, two-way initiator and back-up ring [8]; Have several inlet openings and sediment outflow window on the tube wall of said body [1]; The upper end has the box thread that is connected with oil pipe; The lower end has the male thread that is connected with perforating gun; It is characterized in that: said body [1] lower end ecto-entad has first to the 5th hole successively, and said piston bush [3] sealing is installed in the 4th hole, the 5th hole of said body [1] and the cascaded surface on the piston bush [3] contacts the location with cascaded surface between said the 4th hole and the 5th hole, and said piston [2] middle and lower part seals to be installed in the piston bush [3] and through first shear pin [12] and radially is connected; Said activity template [4] is arranged in the hole enlargement chamber of piston bush [3] lower end; The firing pin assembly contains striker post [6] and two firing pins [5]; Striker post [6] is that two ends are big and middlely be the hollow cylinder structure of stairstepping recessed structures; Big end has two hit pinholes before it; The preceding big end of striker post [6] is threaded with the 3rd hole of body [1], trapezoidal recessed structures of scala media and big second hole that is arranged in body [1] of holding, back; The tip of two firing pins [5] lays respectively in two hit pinholes and big end contacts with said activity template [4], with second shear pin [11] said two firing pins [5] and striker post [6] is connected; In said two-way initiator; Igniter cap seat [10] has two I-shaped flash holes; Two equal correspondences of cross-drilled hole in each I-shaped flash hole be connected igniter cap [13] and first detonator [14]; Igniter cap seat [10] is connected in the front end installing hole of propagation squib seat [7]; Second detonator [15] and propagation squib [16] are connected in the middle-end installing hole and rear end installing hole of said propagation squib seat [7] successively; The front end of propagation squib seat [7] is inserted in the back big end endoporus of said striker post [6], the front end of said igniter cap seat [10] be positioned on the rear side end face of the preceding big end of said striker post [6] and said two I-shaped flash holes and said two firing pins [5] one by one over against, the rear end of propagation squib seat [7] then is arranged in first hole of body [1]; Said back-up ring [8] is through the outer cascaded surface location of the shoulder hole and the said propagation squib seat [7] of its front end, and the rear end of back-up ring [8] then is threaded with first hole of body [1].
2. the redundant sparking gear of safety according to claim 1 is characterized in that: said activity template [4] is arc surface for circular piece and its periphery that superduralumin LC4 makes.
3. the redundant sparking gear of safety according to claim 1 and 2; It is characterized in that: firing pin [5] is to be processed and the process modulation treatment by T10 or T8 material; Its outside diameter is
5mm, and tip diameter is
2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201585245U CN202100246U (en) | 2011-05-17 | 2011-05-17 | Safety redundant ignition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201585245U CN202100246U (en) | 2011-05-17 | 2011-05-17 | Safety redundant ignition device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202100246U true CN202100246U (en) | 2012-01-04 |
Family
ID=45386262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201585245U Expired - Lifetime CN202100246U (en) | 2011-05-17 | 2011-05-17 | Safety redundant ignition device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202100246U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103147724A (en) * | 2013-02-28 | 2013-06-12 | 西安物华巨能爆破器材有限责任公司 | Dual-purpose detonating device for detonating perforating gun |
| CN103147725A (en) * | 2013-02-28 | 2013-06-12 | 西安物华巨能爆破器材有限责任公司 | Pressure differential priming device used for oil and gas well perforating operation |
| CN105241300A (en) * | 2015-10-10 | 2016-01-13 | 湖北三江航天红林探控有限公司 | Cutting-off type locking device |
-
2011
- 2011-05-17 CN CN2011201585245U patent/CN202100246U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103147724A (en) * | 2013-02-28 | 2013-06-12 | 西安物华巨能爆破器材有限责任公司 | Dual-purpose detonating device for detonating perforating gun |
| CN103147725A (en) * | 2013-02-28 | 2013-06-12 | 西安物华巨能爆破器材有限责任公司 | Pressure differential priming device used for oil and gas well perforating operation |
| CN103147724B (en) * | 2013-02-28 | 2015-07-01 | 西安物华巨能爆破器材有限责任公司 | Dual-purpose detonating device for detonating perforating gun |
| CN105241300A (en) * | 2015-10-10 | 2016-01-13 | 湖北三江航天红林探控有限公司 | Cutting-off type locking device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120104 |