CN204371258U - The anti-detonation impact safety protective cover of multi-stage ignition device - Google Patents
The anti-detonation impact safety protective cover of multi-stage ignition device Download PDFInfo
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- CN204371258U CN204371258U CN201420852743.7U CN201420852743U CN204371258U CN 204371258 U CN204371258 U CN 204371258U CN 201420852743 U CN201420852743 U CN 201420852743U CN 204371258 U CN204371258 U CN 204371258U
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- protective cover
- repeatedly
- igniter head
- connecting line
- sleeve
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Abstract
The utility model relates to the anti-detonation impact safety protective cover of a kind of multi-stage ignition device, and the upper end of sleeve is contained in the interior also fixing seal of top connection; The lower end of sleeve is connected with lower contact with by pressure ring; Repeatedly igniter head is connected with the assembling column sealing of sleeve lining; Multistage pressure plug assembly and repeatedly igniter head are tightly connected; Microswitch is fixed on repeatedly on igniter head; Switch lever and spring are contained in repeatedly in the hole of igniter head, fixing with protective cover sealing; High-voltage plug assembly has the main connecting line and upper and lower connecting line that connect main line and upper and lower level perforating gun.The utility model screw thread is loaded on repeatedly on igniter head, not only has the passage of transmission of pressure, also can protection switch bar by the destruction of blast impulse.The detonation wave after subordinate's perforating gun perforation can be stopped during use, prevent switch lever from damaging, thus improve the reliability of higher level's perforating gun perforation.The utility model structure is simple, can extend the application life of product, reduces product cost, improves the reliability of product.
Description
Technical field
The utility model relates to Oil/gas Well cable sub-clustering perforation field, is specifically related to the anti-detonation impact safety protective cover of a kind of multi-stage ignition device.
Background technology
In Oil/gas Well cable sub-clustering perforation, after subordinate's perforating gun perforation, detonation wave enters in multi-stage ignition device, damages switch lever, can not change by realizing circuit, causes the open circuit of higher level's perforating gun, can not perforation.By the mode of cable transmission, once going into the well to complete that bridging plug sets, multilayer position perforation, for follow-up fracturing work lays the foundation.Duty cycle is short, and efficiency is high, and labour cost is low.This technology is applicable to common perforating job, is specially adapted to the perforating job of shale gas exploitation.Can be used for straight well or horizontal well.
Summary of the invention
The purpose of this utility model is for the above-mentioned state of the art, aims to provide a kind of detonation wave that can stop subordinate's perforating gun, prevents the anti-detonation impact safety protective cover of multi-stage ignition device damaging switch lever.
The implementation of the utility model object is, the anti-detonation impact safety protective cover of multi-stage ignition device, and the upper end of sleeve loads in the pilot hole of top connection, fixes with plug screw, with O shape circle two sealing; The lower end pressure ring of sleeve is fixed, and pressure ring is threaded with lower contact; Repeatedly igniter head is connected with the assembling male screw of sleeve lining, with O shape circle four sealing; Multistage pressure plug assembly is threaded with repeatedly igniter head, and with seal with O ring; Microswitch is screwed on repeatedly igniter head; Switch lever and spring are contained in repeatedly in the hole of igniter head, fix with protective cover, and between protective cover with O shape enclose six, O shape encloses seven and seals; There is the main connecting line connecing main line one high-voltage plug assembly upper end, and there is the upper connecting line connecting higher level's perforating gun a high-voltage plug assembly upper end, and there is the lower connecting line connecting subordinate's perforating gun a high-voltage plug assembly lower end; Main connecting line, upper connecting line are drawn from the through hole of gland cylinder upper end tamponade, enclose three seal between sleeve upper end and tamponade with O shape.
The utility model screw thread is loaded on repeatedly on igniter head, not only has the passage of transmission of pressure, and can protection switch bar by the destruction of blast impulse.When using the utility model, the utility model can stop the detonation wave after subordinate's perforating gun perforation, prevents switch lever from damaging, thus improves the reliability of higher level's perforating gun perforation.The utility model structure is simple, can extend the application life of product, reduces product cost, improves the reliability of product.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation,
Fig. 2 is protective cover structure left view of the present utility model,
Fig. 3 is protective cover structural front view of the present utility model.
Detailed description of the invention
With reference to the accompanying drawings in detail the utility model is described in detail.
With reference to Fig. 1, sleeve 7 upper end of the present utility model loads in the pilot hole of top connection 1, fixes with plug screw 4, with O shape circle 23 sealing.The lower end of sleeve 7 is fixed with pressure ring 16, and pressure ring is threaded with lower contact 20.Repeatedly igniter head 10 is connected with the assembling male screw of sleeve 7 inwall, with O shape circle 49 sealing.Multistage pressure plug assembly 8 is threaded with repeatedly igniter head 10, and uses seal with O ring.Described microswitch 12 screw 11 is fixed on repeatedly on igniter head 10; Switch lever 15 and spring 14 are contained in repeatedly in the hole of igniter head 10, fix with protective cover 19, and between protective cover 19 with O shape enclose 6 17, O shape encloses 7 18 and seals.One high-voltage plug assembly upper end has main connecting line 21, the high-voltage plug assembly upper end connecing main line to have upper connecting line 22, the high-voltage plug assembly lower end connecting higher level's perforating gun to have the lower connecting line 23 connecting subordinate's perforating gun.Main connecting line 21, upper connecting line 22 are drawn from the through hole of gland cylinder upper end tamponade 5, enclose 36 and seal, prevent thread looseness between sleeve upper end and tamponade with O shape.
With reference to Fig. 2,3, described protective cover 19 overall length 30.5mm; Maximum outer round thread is M27 × 1.5-6h, the long 7.5mm of screw thread; Endoporus oral area chamfering 24 is 20 °, long 1.5mm; Endoporus 25 diameter is φ 10mm, length 26.5mm; Cylindrical 26 diameter phi 22mm, long 15mm; Protection is covered with 2 seal grooves 27, diameter phi 18.2mm at the bottom of seal groove, groove width 3.2mm.First seal groove and left side distance are 2mm, and the spacing of 2 seal grooves is 2mm.Protection is covered with 6 lateral aperture 28 for transmission of pressure, lateral aperture diameter phi 2mm, is 6mm with right side distance; Six sides 29 are of a size of 21mm, length 8mm.
Described protective cover 19 material is 42CrMo, and heat treatment hardness is HRC27-32, and surface treatment mode is phosphorating treatment.
When using the utility model, main connecting line 21 main line communicates with subordinate perforating gun, and energising can ignite subordinate's perforating gun.After subordinate's perforating gun perforation, head of liquid pull switch bar Compress Spring touches the conversion of microswitch realizing circuit, and energising can ignite higher level's perforating gun again.
Claims (3)
1. the anti-detonation impact safety protective cover of multi-stage ignition device, is characterized in that: the upper end of sleeve loads in the pilot hole of top connection, fixes with plug screw, with O shape circle two sealing; The lower end pressure ring of sleeve is fixed, and pressure ring is threaded with lower contact; Repeatedly igniter head is connected with the assembling male screw of sleeve lining, with O shape circle four sealing; Multistage pressure plug assembly is threaded with repeatedly igniter head, and with seal with O ring; Microswitch is screwed on repeatedly igniter head; Switch lever and spring are contained in repeatedly in the hole of igniter head, fix with protective cover, and between protective cover with O shape enclose six, O shape encloses seven and seals; There is the main connecting line connecing main line one high-voltage plug assembly upper end, and there is the upper connecting line connecting higher level's perforating gun a high-voltage plug assembly upper end, and there is the lower connecting line connecting subordinate's perforating gun a high-voltage plug assembly lower end; Main connecting line, upper connecting line are drawn from the through hole of gland cylinder upper end tamponade, enclose three seal between sleeve upper end and tamponade with O shape.
2. the anti-detonation impact safety protective cover of multi-stage ignition device according to claim 1, is characterized in that: described protective cover (19) overall length 30.5mm; Maximum outer round thread is M27 × 1.5-6h, the long 7.5mm of screw thread; Endoporus oral area chamfering (24) is 20 °, long 1.5mm; Endoporus (25) diameter is φ 10mm, length 26.5mm; Cylindrical (26) diameter phi 22mm, long 15mm; Protection is covered with 2 seal grooves (27), diameter phi 18.2mm at the bottom of seal groove, groove width 3.2mm, and first seal groove and left side distance are 2mm, and the spacing of 2 seal grooves is 2mm; Protection is covered with 6 lateral aperture for transmission of pressure (28), lateral aperture diameter phi 2mm, is 6mm with right side distance; Six sides (29) are of a size of 21mm, length 8mm.
3. the anti-detonation impact safety protective cover of multi-stage ignition device according to claim 1, it is characterized in that: described protective cover (19) material is 42CrMo, heat treatment hardness is HRC27-32.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420852743.7U CN204371258U (en) | 2014-12-26 | 2014-12-26 | The anti-detonation impact safety protective cover of multi-stage ignition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420852743.7U CN204371258U (en) | 2014-12-26 | 2014-12-26 | The anti-detonation impact safety protective cover of multi-stage ignition device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204371258U true CN204371258U (en) | 2015-06-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420852743.7U Active CN204371258U (en) | 2014-12-26 | 2014-12-26 | The anti-detonation impact safety protective cover of multi-stage ignition device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204371258U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109779576A (en) * | 2019-03-05 | 2019-05-21 | 西安威尔格德能源技术有限公司 | Pipe nipple is controlled in a kind of reusable multi-stage perforator |
-
2014
- 2014-12-26 CN CN201420852743.7U patent/CN204371258U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109779576A (en) * | 2019-03-05 | 2019-05-21 | 西安威尔格德能源技术有限公司 | Pipe nipple is controlled in a kind of reusable multi-stage perforator |
| CN109779576B (en) * | 2019-03-05 | 2023-08-29 | 西安威尔格德能源技术有限公司 | Reusable multistage perforation central control nipple |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |