CN202202848U - Novel composite perforation gun for inner blind holes - Google Patents
Novel composite perforation gun for inner blind holes Download PDFInfo
- Publication number
- CN202202848U CN202202848U CN2011203404070U CN201120340407U CN202202848U CN 202202848 U CN202202848 U CN 202202848U CN 2011203404070 U CN2011203404070 U CN 2011203404070U CN 201120340407 U CN201120340407 U CN 201120340407U CN 202202848 U CN202202848 U CN 202202848U
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- China
- Prior art keywords
- gun
- perforation gun
- blind holes
- novel composite
- composite perforation
- 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 - Fee Related
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Abstract
The utility model relates to a novel composite perforation gun for inner blind holes. The novel composite perforation gun is mainly used for solving the problem that the existing perforation guns for inner blind holes have high machining difficulty and worse sealing. The novel composite perforation gun for the inner blind holes is characterized in that a loophole (2) is a conical hole which is contractive from the outside to inside; and a catch (1) is adhered in the conical hole. The novel composite perforation gun for the inner blind holes has the characteristics of simple machining and good sealing performance.
Description
Technical field
The utility model relates to a kind of oil field development perforation field, a kind of specifically novel interior blind hole composite perforation gun.
Background technology
Perforating gun is the critical piece of shaped charge with gun body; But in some cases owing to receive the restriction of body of a gun internal diameter; The best dress rifle height of burst of perforating bullet is difficult to guarantee; Make the energy-gathering jetting of perforating bullet not reach abundant stretching, thereby reduced the dark performance of wearing of perforator, influenced the effect of perforating job before with regard to the too early obstruction that run into.Blind hole structure can improve the dress rifle height of burst accordingly in adopting; Blind hole composite perforation gun in many kinds is arranged at present; But blind hole shape, position, hole count, sealing means method have nothing in common with each other; But ubiquity stretches in the gun barrel problems such as the big or blind hole poor seal of difficulty of processing, does not reach the requirement of application.
Summary of the invention
For overcome existing in the deficiency of big, the poor seal of blind hole blind holes of perforating gun difficulty of processing, the utility model provide a kind of novel in the blind hole composite perforation gun, blind hole composite perforation gun had that processing is simple, the characteristics of good airproof performance in this was novel.
The technical scheme of the utility model is: a kind of novel interior blind hole composite perforation gun, comprise the body of a gun, and it is the bellmouth that ecto-entad shrinks that several loopholes, described loophole are arranged on the sidewall of the body of a gun, and is bonded with catch in the described bellmouth.
The tapering of described loophole is 1:10 ~ 1:30, and described catch is an aluminium flake.
The utlity model has following beneficial effect: owing to take such scheme, loophole is processed into bellmouth, bonding catch in bellmouth is compared with interior blind hole in the past, and processing is simple, and has improved sealing effectiveness, simultaneously, has improved the dress rifle height of burst of perforating bullet.
Description of drawings:
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the radial section figure of the utility model.
1-catch among the figure, 2-loophole, the 3-body of a gun, 4-perforating bullet, 5-firing mount, 6-detonating fuse.
The specific embodiment:
Below in conjunction with accompanying drawing the utility model is described further:
By shown in Figure 1, a kind of novel interior blind hole composite perforation gun comprises the body of a gun 3; Several loopholes 2 are arranged on the sidewall of the body of a gun 3, the bellmouth that described loophole 2 shrinks for ecto-entad, promptly loophole 2 outer diameters are greater than inner diameter; Its tapering is 1:10 ~ 1:30, is preferably 1:20, is bonded with catch 1 in the described bellmouth; In metal since the hardness of aluminium the end of than, so catch 1 preferably selects aluminium flake for use, because loophole 2 is a bellmouth; Catch 1 is bonding more to the inside tight more in the hole, and sealing is good more.By shown in Figure 2; Detonating fuse 6 is lighted back perforating bullet 4 by penetrating on the firing mount 5; Break through catch 1 back and penetrate,, effectively improved the dress rifle height of burst H of perforating bullet owing to the position of catch 1; Improve the penetration depth of perforator, more can be fit to the complex environment of down-hole heat resisting and pressure resisting, the perforating job of assurance stability and safety compared with similar products.Blind hole structure is reasonable, easy to process in this, and processing dimension guarantees that easily it is big to have solved the difficulty that stretches into the interior blind hole of processing in the rifle body, and hole depth is difficult to the assurance problem.The perforating gun of the utility model has carried out the withstand voltage properties test, and under the pressure of autoclave 70MPa, keeping 30min to reach does not have leakage, nothing distortion
Claims (3)
- One kind novel in the blind hole composite perforation gun; Comprise the body of a gun (3); Several loopholes (2) are arranged on the sidewall of the body of a gun (3), it is characterized in that: the bellmouth that described loophole (2) shrinks for ecto-entad, and be bonded with catch (1) in the described bellmouth.
- 2. novel interior blind hole composite perforation gun according to claim 1, it is characterized in that: the tapering of described loophole (2) is 1:10 ~ 1:30.
- 3. novel interior blind hole composite perforation gun according to claim 2, it is characterized in that: described catch (1) is an aluminium flake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203404070U CN202202848U (en) | 2011-09-13 | 2011-09-13 | Novel composite perforation gun for inner blind holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203404070U CN202202848U (en) | 2011-09-13 | 2011-09-13 | Novel composite perforation gun for inner blind holes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202202848U true CN202202848U (en) | 2012-04-25 |
Family
ID=45966977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203404070U Expired - Fee Related CN202202848U (en) | 2011-09-13 | 2011-09-13 | Novel composite perforation gun for inner blind holes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202202848U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106567693A (en) * | 2016-10-20 | 2017-04-19 | 大庆红祥寓科技有限公司 | Inner and outer blind hole blockage relieving composite perforator |
| 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 |
-
2011
- 2011-09-13 CN CN2011203404070U patent/CN202202848U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106567693A (en) * | 2016-10-20 | 2017-04-19 | 大庆红祥寓科技有限公司 | Inner and outer blind hole blockage relieving composite perforator |
| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120425 Termination date: 20200913 |