CN203248135U - Blocking-sheet type composite perforator - Google Patents
Blocking-sheet type composite perforator Download PDFInfo
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- CN203248135U CN203248135U CN 201320298701 CN201320298701U CN203248135U CN 203248135 U CN203248135 U CN 203248135U CN 201320298701 CN201320298701 CN 201320298701 CN 201320298701 U CN201320298701 U CN 201320298701U CN 203248135 U CN203248135 U CN 203248135U
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- blocking
- perforator
- gun
- type composite
- bullet
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Abstract
The utility model discloses a blocking-sheet type composite perforator. The blocking-sheet type composite perforator solves the problems that an existing composite perforator is poor in pressure relieving effect and a gun body can be easily deformed. The blocking-sheet type composite perforator particularly comprises the gun body, a perforating bullet, a bullet carrier and a detonating cord, wherein the bullet carrier is arranged in the gun body, the perforating bullet is fixed on the bullet carrier, the perforating bullet is connected with the detonating cord, a plurality of step blind holes are formed in the gun body, a circular aluminum blocking sheet covers each step blind hole, and a sealing gasket is arranged between each aluminum blocking sheet and each step blind hole. The blocking-sheet type composite perforator is good in pressure relieving effect and small in gun body deformation, the burst height H of the perforating bullet is obviously increased, and the penetration depth of the perforator is increased. Compared with the like products, the blocking-sheet type composite perforator can be more suitable for the high temperature and high pressure complex environment under a shaft and improve stability and safety of the composite perforating operation.
Description
Technical field
The utility model relates to the perforator that oil-gas field development perforation construction operation is used.
Background technology
Present composite perforator, blind hole shape, position, hole count, sealing means are different, but that ubiquity difficulty of processing is large, the problem that operability is not strong, the perforator rear release effect of detonating does not reach perfect condition.Concrete is because perforator is used for the perforating oil gas well operation, be subjected to the restriction of well inner sleeve size, the adjustable scope of the diameter of perforator and wall thickness is very little, and cause the appearance of lower routine situation: the one, in perforating gun, perforating bullet and gunpowder are housed, because the rifle intracorporeal space is little, energy can't in time be discharged, and causes the release weak effect after igniting, the rifle body deformability causes certain difficulty to perforator from the shaft bottom lifting; The 2nd, because the restriction of body of perforating gun inwall makes the gun setting and burst height H of perforating bullet be difficult to guarantee, so that the energy-gathering jetting of perforating bullet before not reaching abundant stretching with regard to the too early obstruction that run into, thereby reduced the dark performance of wearing of perforator, reduced the efficient of perforating job.
Summary of the invention
The purpose of this utility model provides a kind of composite perforator, has designed the blind hole of jam formula structure on this composite perforator, has both satisfied the requirement of the rear fast pressure relief of detonating, and has improved again the height of burst of perforating bullet in the rifle body.
For achieving the above object, the technical solution adopted in the utility model is: a kind of jam formula composite perforator, comprise the body of a gun, perforating bullet, firing mount and detonating fuse, firing mount is set in the body of a gun, fixing perforating bullet on the firing mount, perforating bullet is connected with detonating fuse, it is characterized in that: some step blind holes are set on the described body of a gun, be stamped the circular aluminum jam on each step blind hole, between aluminium jam and the step blind hole gasket seal be set.
The top bar arrangement of blind hole of the preferred body of a gun is: unit length is all to establish 16 step blind holes on one meter the body of a gun, and the center line of adjacent two step blind holes is orthogonal, and the line of centres of all step blind holes is the helix of the coiling body of a gun.
Beneficial effect: it is effective that this perforator not only has release, the rifle body deformability is little, and has obviously improved perforating bullet height of burst H, improves the penetration depth of perforator, compared with similar products, the complex environment that more can be fit to the down-hole HTHP has improved stability and the safety of composite gun perforation operation.
Description of drawings
Fig. 1 is the structural representation of the utility model jam formula composite perforator.
Fig. 2 is the lateral view of Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described:
By Fig. 1 in conjunction with shown in Figure 2: a kind of jam formula composite perforator, comprise the body of a gun 4, perforating bullet 5, firing mount 6 and detonating fuse 7, the body of a gun 4 interior firing mounts 6 that arrange, fixing perforating bullet 5 on the firing mount 6, perforating bullet 5 is connected with detonating fuse 7; Some step blind holes 3 are set on the described body of a gun 4, are stamped circular aluminum jam 1 on each step blind hole 3, between aluminium jam 1 and the step blind hole 3 gasket seal 2 is set.The top bar arrangement of blind hole 3 of the body of a gun 4 is: unit length is all to establish 16 step blind holes 3 on one meter the body of a gun 4, and the center line of adjacent two step blind holes 3 is orthogonal, and the line of centres of all step blind holes 3 is the helix of the coiling body of a gun.
The utility model processes step blind hole 3 by utilizing at body of a gun steel pipe, and utilize circular aluminum jam 1, utilize sealing ring 2 sealing blind holes 3, this perforator has not only solved perforator release weak effect, rifle body deformability, and Effective Raise perforating bullet gun setting and burst height H, it is rational in infrastructure, and characteristics are exactly that release is effective, good airproof performance, guarantee the distortion tolerance of beam, greatly increased the speed that perforator promotes from the down-hole; And improved the dark performance of wearing of perforator, improved the efficient of perforating job.The perforator of this structure is by withstand voltage 70MPa, and 150 ℃ of tests of heatproof reach good sealing effectiveness; And having passed through the concrete target test, the rifle body deformability meets the composite perforator technical standard, has improved simultaneously stability and the safety of composite gun perforation operation in practical operation.
Claims (2)
1. jam formula composite perforator, comprise the body of a gun, perforating bullet, firing mount and detonating fuse, firing mount is set in the body of a gun, fixing perforating bullet on the firing mount, perforating bullet is connected with detonating fuse, it is characterized in that: some step blind holes are set on the described body of a gun, are stamped the circular aluminum jam on each step blind hole, between aluminium jam and the step blind hole gasket seal is set.
2. jam formula composite perforator according to claim 1, it is characterized in that: the top bar arrangement of blind hole of the described body of a gun is: be all to establish 16 step blind holes on one meter the body of a gun in unit length, and the center line of adjacent two step blind holes is orthogonal, and the line of centres of all step blind holes is the helix of the coiling body of a gun.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320298701 CN203248135U (en) | 2013-05-28 | 2013-05-28 | Blocking-sheet type composite perforator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320298701 CN203248135U (en) | 2013-05-28 | 2013-05-28 | Blocking-sheet type composite perforator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203248135U true CN203248135U (en) | 2013-10-23 |
Family
ID=49374581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320298701 Expired - Lifetime CN203248135U (en) | 2013-05-28 | 2013-05-28 | Blocking-sheet type composite perforator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203248135U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112593903A (en) * | 2020-12-14 | 2021-04-02 | 大庆石油管理局有限公司 | Fixed-firing-angle inner blind hole perforating gun |
-
2013
- 2013-05-28 CN CN 201320298701 patent/CN203248135U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112593903A (en) * | 2020-12-14 | 2021-04-02 | 大庆石油管理局有限公司 | Fixed-firing-angle inner blind hole perforating gun |
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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: 20131023 |