CN202628048U - Perforation gun with inner blind hole and outer blind hole - Google Patents
Perforation gun with inner blind hole and outer blind hole Download PDFInfo
- Publication number
- CN202628048U CN202628048U CN 201220322690 CN201220322690U CN202628048U CN 202628048 U CN202628048 U CN 202628048U CN 201220322690 CN201220322690 CN 201220322690 CN 201220322690 U CN201220322690 U CN 201220322690U CN 202628048 U CN202628048 U CN 202628048U
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- Prior art keywords
- blind hole
- perforation
- gun
- perforating
- bullet
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- Expired - Fee Related
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Abstract
The utility model relates to a perforation gun with an inner blind hole and an outer blind hole. The perforation gun comprises a gun body, wherein the inner blind hole which is processed outwards from the inner part of a pipe material is formed in a part, which corresponds to a perforation bullet, on the inner wall of the gun body; the outer blind hole is processed inwards in the outer part, which corresponds to the pipe material, of the inner blind hole; and the inner blind hole is not communicated with the outer blind hole. The inner blind hole and the outer blind hole are simultaneously formed in the gun body, so that the burst height of the perforation bullet is effectively increased; under the condition of allowable pressure, the thickness of a pipe wall between the inner blind hole and the outer blind hole is reduced, and the problem of depth difference of the perforation bullet is solved; furthermore, the inner blind hole and the outer blind hole are not communicated, so that leakage of the gun body is prevented, and production safety is guaranteed; the perforation effect is enhanced while the compressive strength is met; the bottoms of the inner blind hole and the outer blind hole are smooth arc surfaces, so that safe detonation of the perforation bullet is guaranteed; and moreover, due to the smooth arc surfaces, the phenomenon that an integrated fragment falls during the perforation of the gun body can be reduced, and a gun locked accident is avoided.
Description
Technical field
The utility model relates to the drilling apparatus of soil layer or rock, exploitation perforation field, be specifically related to be oil field development the time the inside and outside blind hole perforating gun used.
Background technology
Perforating gun is the equipment special in oil, the construction of gas field perforation.At present; Common perforating gun has interior blind hole perforating gun, outer blind hole perforating gun; And be blind hole or outer blind hole in single being provided with on the rifle body of most interior blind hole perforating guns, outer blind hole perforating gun, like this, receive effect on structure; Exist following deficiency in the perforating job process: the blind hole perforating gun exists and influences perforating bullet and wear dark problem promptly, and perforating effect is poor; Simultaneously, outer blind hole perforating gun often is that jet does not fully draw back and just begins brokenly target, and the height of burst of perforating bullet does not reach expected effect, and perforating job has also just received certain influence.Therefore, be badly in need of wanting a kind of and can reach the dark requirement of wearing of perforating bullet, can solve the perforating gun of perforating bullet height of burst problem again.
Summary of the invention
The goal of the invention of the utility model is to the problems referred to above a kind of inside and outside blind hole perforating gun to be provided; Through the blind hole on the perforating gun rifle body is improved, and then the perforating bullet that the blind hole perforating gun exists in solving in the perforating job process is worn the low problem of the perforating bullet height of burst that dark poor and outer blind hole perforating gun exists.
The utility model is realized through following technical scheme: inside and outside blind hole perforating gun comprises the rifle body; Rifle body inwall perforating bullet corresponding position has from the inner outwards interior blind hole of processing of tubing; Interior blind hole corresponding tube outside inwardly is processed with outer blind hole, is not communicated with between interior blind hole, the outer blind hole.
The tube wall thickness distance is 1～4 millimeter between described interior blind hole, the outer blind hole.
The bottom surface, hole of blind hole, outer blind hole is level and smooth cambered surface in described.
Adopt the good effect of technique scheme:
1, the utility model is through be provided with interior blind hole, outer blind hole simultaneously on the rifle body; Increased the height of burst of perforating bullet effectively, simultaneously, under the condition that pressure allows; Reduced the tube wall thickness degree between interior blind hole, the outer blind hole, improved perforating bullet and worn dark poor problem;
2, be not communicated with between blind hole, the outer blind hole in the utility model, can not cause rifle body seepage, guarantee production safety, when satisfying compressive strength, improved perforating effect;
3, the setting of blind hole, the level and smooth cambered surface in bottom surface, outer blind hole hole in the utility model; When the firing mount that has farthest guaranteed perforating bullet is packed perforating gun into; Detonating fuse is not scratched, for the perforating bullet safe initiation provides guarantee, in addition; Being provided with of smooth cambered surface can also be reduced the rifle body situation that the full wafer chip comes off is taken place when perforating job, avoided card rifle accident.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Among the figure: blind hole, 3 outer blind holes in the 1 rifle body, 2.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further: as shown in Figure 1, inside and outside blind hole perforating gun comprises rifle body 1.Wherein, in use, need perforating bullet be installed in the rifle body 1.The structure of this perforating gun is a blind hole 2 on the tubing of rifle body 1 inwall perforating bullet corresponding position, outwards being processed with by inside, and the quantity of interior blind hole 2 is provided with according to the quantity of the perforating bullet of installing and using.Simultaneously, blind hole 3 outside on the tubing of the corresponding rifle body 1 of interior blind hole 2, inwardly being processed with by the outside, and be not communicated with between the interior blind hole 2, outer blind hole 3.The perforating gun of comparing and having only interior blind hole or having only outer blind hole; The utility model forms thin-walled between the bottom of the bottom of blind hole 2 and outer blind hole 3 in the interior blind hole 2 of the tubing machined of rifle body 1 and the outer blind hole 3 of tubing external process in making, and has substituted in the past at the outside thin jam that pastes of tubing; Stopped because of approaching the card rifle situation that jam comes off and causes; In addition, the thin-walled that forms between interior blind hole 2 bottoms and outer blind hole 3 bottoms also can not cause the seepage of rifle body, has guaranteed production safety; Also increased the height of burst of perforating bullet effectively, improved perforating bullet and worn dark poor problem.
In actual perforating job process; For further improving the height of burst; Also guarantee whole crushing resistance simultaneously; Can be interior tube wall thickness distance between the blind hole 2, outer blind hole 3 be set to 1～4 millimeter, the walled thickness that forms between promptly above-mentioned interior blind hole 2 bottoms and outer blind hole 3 bottoms is arranged in 1～4 millimeter scope.
In addition,, improve safety, can the bottom surface, hole of interior blind hole 2, outer blind hole 3 be level and smooth cambered surface for the detonating fuse that reduces the perforating bullet firing mount is not scratched.Being provided with of smooth cambered surface can also be reduced the rifle body situation that the full wafer chip comes off is taken place when perforating job, avoided card rifle accident.
The utility model is suitable for common cable type and pipe conveying type perforation, also is suitable for perforations such as combined type, two compound, orientation formula.
Claims (3)
1. blind hole perforating gun inside and outside a kind; Comprise rifle body (1); It is characterized in that: rifle body (1) inwall perforating bullet corresponding position has from the inner outwards interior blind hole (2) of processing of tubing; Interior blind hole (2) corresponding tube outside inwardly is processed with outer blind hole (3), and interior blind hole (2), outer blind hole are not communicated with between (3).
2. inside and outside blind hole perforating gun according to claim 1 is characterized in that: the tube wall thickness distance is 1～4 millimeter between described interior blind hole (2), the outer blind hole (3).
3. inside and outside blind hole perforating gun according to claim 1 and 2, it is characterized in that: the bottom surface, hole of blind hole (2), outer blind hole (3) is level and smooth cambered surface in described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220322690 CN202628048U (en) | 2012-07-05 | 2012-07-05 | Perforation gun with inner blind hole and outer blind hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220322690 CN202628048U (en) | 2012-07-05 | 2012-07-05 | Perforation gun with inner blind hole and outer blind hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202628048U true CN202628048U (en) | 2012-12-26 |
Family
ID=47381256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220322690 Expired - Fee Related CN202628048U (en) | 2012-07-05 | 2012-07-05 | Perforation gun with inner blind hole and outer blind hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202628048U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832136A (en) * | 2015-06-05 | 2015-08-12 | 四川石油射孔器材有限责任公司 | Low-confining-pressure perforator used for oil gas well |
| 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 |
| CN108386166A (en) * | 2018-04-08 | 2018-08-10 | 宝鸡通源石油钻采工具有限公司 | A kind of processing method of perforating gun and its gun body |
| CN108518207A (en) * | 2018-03-26 | 2018-09-11 | 宝鸡石油机械有限责任公司 | It is a kind of to consider sleeve type perforating gun to be worth doing without leakage |
| CN109396489A (en) * | 2018-11-15 | 2019-03-01 | 大庆金祥寓科技有限公司 | A kind of inside and outside blind hole machining lathe of perforating gun gun body |
| CN113266317A (en) * | 2021-05-31 | 2021-08-17 | 祁润石 | Oil pipe perforating gun |
-
2012
- 2012-07-05 CN CN 201220322690 patent/CN202628048U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832136A (en) * | 2015-06-05 | 2015-08-12 | 四川石油射孔器材有限责任公司 | Low-confining-pressure perforator used for oil gas well |
| 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 |
| CN108518207A (en) * | 2018-03-26 | 2018-09-11 | 宝鸡石油机械有限责任公司 | It is a kind of to consider sleeve type perforating gun to be worth doing without leakage |
| CN108518207B (en) * | 2018-03-26 | 2021-01-26 | 宝鸡石油机械有限责任公司 | Sliding sleeve type perforating gun without chip leakage |
| CN108386166A (en) * | 2018-04-08 | 2018-08-10 | 宝鸡通源石油钻采工具有限公司 | A kind of processing method of perforating gun and its gun body |
| CN109396489A (en) * | 2018-11-15 | 2019-03-01 | 大庆金祥寓科技有限公司 | A kind of inside and outside blind hole machining lathe of perforating gun gun body |
| CN113266317A (en) * | 2021-05-31 | 2021-08-17 | 祁润石 | Oil pipe 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: 20121226 Termination date: 20160705 |