CN2499572Y - Crash disc pressure difference type primer detonator - Google Patents
Crash disc pressure difference type primer detonator Download PDFInfo
- Publication number
- CN2499572Y CN2499572Y CN 01259895 CN01259895U CN2499572Y CN 2499572 Y CN2499572 Y CN 2499572Y CN 01259895 CN01259895 CN 01259895 CN 01259895 U CN01259895 U CN 01259895U CN 2499572 Y CN2499572 Y CN 2499572Y
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- CN
- China
- Prior art keywords
- rupture disk
- brake
- joint
- utility
- pin
- 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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Abstract
The utility model relates to a crash disc pressure difference type priming device which is applied to perforation detonating process in a perforation test joint pipe column operating with a packer. The utility model comprises a rupture disk 2, a sliding bush 5, a brake 6, a firing pin 7, a joint 8, detonating powder 9, etc. A shell body 1 is provided with the rupture disk 2, a shearing sleeve 3, a shear pin 4, the sliding bush 5, the brake 6 and the firing pin 7. The rupture disk 2 is arranged on the sliding bush 5 provided with the firing pin 7 and the brake 6. The joint 8 is connected with the shell body, and the rupture disk 2 is installed on the sliding bush 5 in one side mode. The accurate and reliable rupture disk replaces a blaster pin of not exactly veracious shear strength. The utility model can be used in oil wells with downhole pressure of more than 105 MPa, and can also used in blasting devices of ordinary pressure.
Description
The utility model is used for igniting the differential priming device of rupture disk in the technology with the perforation that the perforating test of packer operation connection is made tubing string.
At present, domestic pressure perforation priming device all adopts at certain pressure effect down cut pin, make the striker impact detonator ignite perforating gun, the shortcoming of this way is that pin is very high to the requirement of machining accuracy, and temperature influence is bigger, Initiation Pressure and Practical Calculation usually occur and differs bigger, thereby influence the perforation success rate, and then cause test crash, and influenced the normal duration, cause bigger economic loss.
The purpose of this utility model is to provide a kind of pin less demanding to machining accuracy, and temperature influence does not make the differential priming device of very nearly the same and safe and reliable, the easy to operate rupture disk of Initiation Pressure and Practical Calculation.
The utility model be achieved in that comprise housing 1, rupture disk 2, shear sleeve 3, cut off 4, sliding sleeve 5, brake 6, firing pin 7, joint 8, priming 9, plug screw 10, rupture disk 2, shear sleeve 3 arranged in the housing 1, cut off 4, sliding sleeve 5, brake 6, firing pin 7, rupture disk 2 is arranged on the sliding sleeve 5, firing pin 7, brake 6 are arranged in the sliding sleeve 5, and joint 8 is connected with housing 1.
The utility model also adopts following technical scheme:
Between sliding sleeve 5 and the housing 1 shear sleeve 3 arranged, cut off 4.
Priming 9, plug screw 10 are arranged in the joint 8.
Advantage of the present utility model is: replace not initiator pin very accurately of shear strength with rupture disk accurately and reliably, this device can be used in the above oil well of down-hole pressure 105Mpa, and this device is used in general pressure priming device equally.
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of rupture disk joint.
Below in conjunction with accompanying drawing the utility model is further described:
Rupture disk joint 8 is the remodeling usage, this joint can only be used for general pressure reduction priming device, be used for having little significance of pressure priming device, mainly be must be lower than the rupture disk fracture pressure because of pin shear pressure in the pressure priming device that detonates with rupture disk pressure, this has just proposed requirement to the sealing that this device is detained down.
As shown in Figure 1, when going into the well, P
1, P
3Be mud column pressure, P
2Be 0, sliding sleeve 5 heads on retainer 6 all the time, and therefore, this device is safe.When set drive a well after, P
1Be fluid cushion pressure in the tubing string, P
3Constant, (linking up) by bypass pipe and the above annular space of packer, sliding sleeve 5 is at P
1P
3Effect under motionless in the same old way.And work as P
3After reaching certain pressure and breaking rupture disk 2, P
2=P
3P
1, make sliding sleeve 5 up, retainer 6 breaks away from, and piston is at P
2Effect under impact initiation medicine 9 detonate, thereby ignite perforating gun.
As shown in Figure 2, the rupture disk joint is a remodeling usage of the present utility model, also this joint can be connected on the common pressure reduction initiator, and the purpose of side dress rupture disk 2 is for anti-precipitation.
Claims (4)
1. the differential priming device of rupture disk, comprise housing (1), rupture disk (2), shear sleeve (3), cut off (4), sliding sleeve (5), brake (6), firing pin (7), joint (8), priming (9), plug screw (10), it is characterized in that: rupture disk (2), shear sleeve (3) are arranged in the housing (1), cut off (4), sliding sleeve (5), brake (6), firing pin (7), rupture disk (2) is arranged on the sliding sleeve (5), firing pin (7), brake (6) are arranged in the sliding sleeve (5), and joint (8) is connected with housing (1).
2. the differential priming device of rupture disk according to claim 1 is characterized in that: rupture disk (2) side is contained on the sliding sleeve (5).
3. the differential priming device of rupture disk according to claim 1 is characterized in that: between sliding sleeve (5) and the housing (1) shear sleeve (3) arranged, cut off (4).
4. the differential priming device of rupture disk according to claim 1 is characterized in that: priming (9), plug screw (10) are arranged in the joint (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01259895 CN2499572Y (en) | 2001-08-24 | 2001-08-24 | Crash disc pressure difference type primer detonator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01259895 CN2499572Y (en) | 2001-08-24 | 2001-08-24 | Crash disc pressure difference type primer detonator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2499572Y true CN2499572Y (en) | 2002-07-10 |
Family
ID=33668167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01259895 Expired - Lifetime CN2499572Y (en) | 2001-08-24 | 2001-08-24 | Crash disc pressure difference type primer detonator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2499572Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089202A (en) * | 2012-12-28 | 2013-05-08 | 西安通源石油科技股份有限公司 | Tension bar type pressure exploder |
| CN103590791A (en) * | 2013-11-26 | 2014-02-19 | 西安通源石油科技股份有限公司 | Horizontal well perforating device |
| CN108179998A (en) * | 2017-12-12 | 2018-06-19 | 中国石油天然气集团公司 | Cable transmission pressure blasting perforation system and perforating methods |
-
2001
- 2001-08-24 CN CN 01259895 patent/CN2499572Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089202A (en) * | 2012-12-28 | 2013-05-08 | 西安通源石油科技股份有限公司 | Tension bar type pressure exploder |
| CN103590791A (en) * | 2013-11-26 | 2014-02-19 | 西安通源石油科技股份有限公司 | Horizontal well perforating device |
| CN103590791B (en) * | 2013-11-26 | 2016-06-15 | 西安通源石油科技股份有限公司 | Horizontal well perforation device |
| CN108179998A (en) * | 2017-12-12 | 2018-06-19 | 中国石油天然气集团公司 | Cable transmission pressure blasting perforation system and perforating methods |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20110824 Granted publication date: 20020710 |