CN2739356Y - Perforator sandwich gun - Google Patents
Perforator sandwich gun Download PDFInfo
- Publication number
- CN2739356Y CN2739356Y CN 200420086115 CN200420086115U CN2739356Y CN 2739356 Y CN2739356 Y CN 2739356Y CN 200420086115 CN200420086115 CN 200420086115 CN 200420086115 U CN200420086115 U CN 200420086115U CN 2739356 Y CN2739356 Y CN 2739356Y
- Authority
- CN
- China
- Prior art keywords
- gun
- central tube
- interlayer
- perforator
- sandwich
- 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 discloses a perforator sandwich gun used for oil-air well, belonging to exploration technical field for oil-air well. The utility model has a cylindrical gun body which is provided with a central tube inside. The central tube is provided with a primacord. Both ends of the interlayer gun are provided with a joint in the gun. Supporting rings are provided between the cylindrical gun body and the central tube. These supporting rings effectively improve external pressure proof ability of the sandwich gun body. Even under a high voltage of 200MPa, distortion of the sandwich gun is controlled within a stated range, avoiding generation of clamp gun accident caused by that the sandwich gun is flattened.
Description
Technical field
The utility model belongs to the oil gas well mining technical field, specifically a kind of perforator interlayer gun that is used for the oil gas well.
Background technology
In perforating oil gas well, one or more interlayer guns commonly used connect the perforating gun of two oil reservoirs between two oil reservoirs, so that finish the perforation of two oil reservoirs simultaneously.Chinese patent CN1344858 discloses a kind of sandwiched perforating gun anti-pollution protecting method and device; interlayer gun wherein has a tubular rifle body; be provided with central tube in the rifle body, be provided with detonating fuse in the central tube, be connected by joint between rifle between the rifle body of this interlayer gun and perforating gun or another interlayer gun.During perforation, perforator can form very high pressure when implementing blast or burning in pit shaft, and this pressure bears by the rifle body.When operating pressure is too high, tend to interlayer gun rifle body is flattened or causes the moderate finite deformation of rifle body, can be stuck in interlayer gun in the pit shaft, cause card rifle accident.The thickness of interlayer is relevant between single interlayer gun length and oil reservoir, and along with the increase of single interlayer gun length, the bearing capacity of its rifle body reduces, and the rifle body takes place flatten also and cause the possibility of card rifle accident also can increase thereupon.
Summary of the invention
Technical problem to be solved in the utility model is improved existing perforator interlayer gun, provides a kind of avoiding to cause the perforator interlayer gun of card rifle accident because of interlayer gun is crushed.
The technical scheme that addresses the above problem is: the perforator interlayer gun that is provided has a tubular rifle body, is provided with central tube in the rifle body, is provided with detonating fuse in the central tube, and the two ends of interlayer gun are provided with joint between rifle; Improvements of the present utility model are: be provided with support ring between aforesaid tubular rifle body and central tube.These support rings have improved the critical external compressive resistance ability of interlayer gun rifle body effectively, even under the high pressure of 200MPa, the distortion of interlayer gun also is controlled in the scope of regulation, thereby have avoided causing the generation of card rifle accident because of interlayer gun is crushed.
The quantity of support ring should be decided according to the length of interlayer gun, axially every 200～500mm a support ring is set along central tube usually.
The detonating fuse perforation can be set on each above-mentioned support ring, the detonating fuse perforation also is set on the central tube, detonating fuse is passed through from central tube inside; Also can pass through, so that improve the reliability of propagation of explosion from inside and outside two-way of central tube is parallel.
Of the present utility model simple in structure, easy to operate, use reliably, can effectively solve the problem that interlayer gun is crushed in the composite gun perforation operation, thereby guarantee can not occur again in the construction producing the card rifle accident that moderate finite deformation causes because of interlayer gun.So, adopt the interlayer gun of this structure, lay a good foundation for improving composite gun perforation safety of construction and success rate.
Description of drawings
Fig. 1 is the connection layout of interlayer gun of the present utility model and perforating gun.
Fig. 2 is the structure diagram of an embodiment of the utility model.
The specific embodiment
As shown in Figure 1 and Figure 2: the related perforator of the utility model comprises interlayer gun 1 and perforating gun 2, is connected by joint between rifle 3 between the two.According to the thickness of interlayer between two oil reservoirs, need a plurality of interlayer guns to be connected in series sometimes, also be connected between each interlayer gun by joint between rifle.Interlayer gun 1 comprises interlayer gun rifle body 4, central tube 7 and locating ring 9, wherein in the central tube 7 detonating fuse is housed, and the two ends of central tube 7 are separately fixed on locating ring 9 and the following locating ring, between rifle body 4 and rifle between the joint 3 by being threaded.In rifle body 4, be provided with a plurality of support rings 5, along central tube axially be provided with one every 350mm, the external cylindrical surface of this support ring contacts with the inner hole surface of rifle body 4, its inner hole sleeve and is screwed on central tube on central tube 7.Have detonating fuse perforation 8 at the both ends of central tube 7, also have detonating fuse perforation 6 on each support ring 5, detonating fuse is passed through from central tube inside, perhaps pass through, so that improve the reliability of propagation of explosion from inside and outside two-way of central tube is parallel.
Claims (3)
1, a kind of perforator interlayer gun, have a tubular rifle body (4), be provided with central tube (7) in the rifle body, central tube is provided with detonating fuse in (7), the two ends of interlayer gun are provided with joint between rifle (3), it is characterized in that being provided with support ring (5) between aforesaid tubular rifle body (4) and central tube (7).
2,, it is characterized in that said each support ring (5) is provided with detonating fuse perforation (6), also is provided with detonating fuse perforation (8) on the central tube (7) as the said perforator interlayer gun of claim 1.
3, as claim 1 or 2 said perforator interlayer guns, it is characterized in that axially a support ring (5) being set every 200～500mm along central tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420086115 CN2739356Y (en) | 2004-10-29 | 2004-10-29 | Perforator sandwich gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420086115 CN2739356Y (en) | 2004-10-29 | 2004-10-29 | Perforator sandwich gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2739356Y true CN2739356Y (en) | 2005-11-09 |
Family
ID=35354422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420086115 Expired - Lifetime CN2739356Y (en) | 2004-10-29 | 2004-10-29 | Perforator sandwich gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2739356Y (en) |
-
2004
- 2004-10-29 CN CN 200420086115 patent/CN2739356Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: High tech Zone technology two road 710075 Shaanxi city of Xi'an province No. 70 Software Park Lege Tang room D301 Patentee after: Xi'an Tongyuan Petrotech Co., Ltd. Address before: 710065, five floor, West electronic mall, No. 18, electronic road, Shaanxi, Xi'an Patentee before: Xi'an Tongyuan Petrotech Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20141029 Granted publication date: 20051109 |