CN2589674Y - Precise double blind hole type composite perforating tool - Google Patents
Precise double blind hole type composite perforating tool Download PDFInfo
- Publication number
- CN2589674Y CN2589674Y CN 02281033 CN02281033U CN2589674Y CN 2589674 Y CN2589674 Y CN 2589674Y CN 02281033 CN02281033 CN 02281033 CN 02281033 U CN02281033 U CN 02281033U CN 2589674 Y CN2589674 Y CN 2589674Y
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- China
- Prior art keywords
- well
- gun
- oil
- utility
- model
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- 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 precise double-blind hole type composite perforator used for perforating an oil and gas well. The utility model is composed of a gun head 1, a joint 2, a barrel 3, perforating bullets 5, a primacord 6, a bullet frame 7, a gun breech 8 and composite powder 9, wherein precise double blind holes of which the wall thickness is from 1.5 to 2mm are uniformly distributed on the barrel 3. The perforator has the advantages of high temperature resistance and high pressure resistance, fallen objects in the well can be avoided, and the utility model eliminates construction stopping accidents because a special cushion for composite perforation falls into the well. The perforator can realize the composite perforation in a casing well of more than 4<1>/2 inches, the seepage flow characteristic of oil layers and the oil and gas output of an individual well are enhanced, and the deep penetration capacity of slim-hole composite perforation can be effectively enhanced; therefore, the utility model has significant meaning for increase the yield of the oil and gas well.
Description
Technical field: the utility model relates to a kind of downhole hardware that is used for perforating oil gas well, belongs to oil gas well and following perforation tool class.
Background technology: perforation is to utilize downhole perforation device (being commonly called as perforating gun) to penetrate out the important job step that oil gas well oil reservoir makes it to drop into normal exploitation.At present, on-the-spot normally used 89,102 composite perforation guns all are to be with the pressure release through hole, now pound the special-purpose sealing of composite gun perforation mat during the dress rifle.The major defect one of this kind perforating gun is can not high temperature resistant, high pressure, the 2nd, after this rifle emission the special-purpose mat of composite gun perforation is residued in the well, and cause trouble of lost tool in hole and construction to meet the card accident easily, and this kind perforating gun is 4
1/ 2 " can not use in (Φ 114.3mm) cased well.
Summary of the invention: but the purpose of this utility model is to provide a kind of both high temperature high voltage resistants, can avoid trouble of lost tool in hole to prevent that construction chance card accident also can be 4 again
1/ 2 " the accurate double blinding cellular type composite perforator that uses in the above cased well.
The utility model is to realize like this.This kind perforator is made up of big gun head, breech, the body of a gun, joint, compound firing mount, compound gunpowder, perforating bullet, detonating fuse, its characteristics are, adopt the design of accurate double blinding hole, accurate blind hole with wall thickness 1.5-2mm replaces relief hole, should guarantee the bearing requirements of the body of a gun, guarantee the safety relief of the body of a gun again.During use, this perforator that assembles waited to penetrate oil reservoir with cable or oil pipe down to the oil gas well near, adopt the location tracing with the numerically controlled perforating instrument of coring, once the dark method in school or twice dark method in school are determined the perforation layer position penetrated; After the accurate positioning,,, utilize the pressure in the perforating gun to wash accurate double blinding hole open, realize the high speed pressure release, finish the perforation task in the moment that perforating gun detonates with ground instrument or caber or the pressurization perforating gun that detonates.This perforator can be 4
1/ 2 " carry out perforating job in all kinds of oil gas wells of (Φ 114.3mm) above sleeve pipe.
The utility model high temperature high voltage resistant can be avoided trouble of lost tool in hole, and eliminating falls into the construction chance card accident that well may cause because of the special-purpose mat of composite gun perforation.This kind perforator can be 4
1/ 2 " realize composite gun perforation in the above cased well, improve oil reservoir seepage characteristic and individual well oil and gas production, also can effectively improve the deep penetration ability of slim-hole composite gun perforation, improve the individual well oil and gas production, significant to the volume increase of this type of oil gas well.The both available cable conveying-type construction of this perforator, available again oil pipe conveying-type construction; Both can be applicable to deep-well, can use shallow well again, and be not subjected to the restriction of down-hole execution conditions.
Description of drawings: accompanying drawing is a general structure schematic diagram of the present utility model,
The specific embodiment: as shown in the figure, the utility model is made up of big gun head 1, joint 2, the body of a gun 3, perforating bullet 5, detonating fuse 6, firing mount 7, breech 8, compound gunpowder 9, and big gun head 1 connects the body of a gun 32 times by joint, and body of a gun lower end is connected with breech 8 with screw thread; Be provided with firing mount 7 in the body of a gun 3, at interval perforating bullet 5 and compound gunpowder 9 be housed in the firing mount 7, connect with detonating fuse 6 between the perforating bullet 5.Wherein, the body of a gun 3 adopts thick-walled seamless steel pipes to make, and is evenly equipped with the accurate double blinding hole 4 of wall thickness 1.5-2mm on it, Kong Miwei 13 holes/m, and body of a gun length meets 89 rifle series standards, and the body of a gun expands the footpath less than 5mm behind the perforation.
Claims (1)
1, a kind of accurate double blinding cellular type composite perforator, form by big gun head (1) joint (2), the body of a gun (3), perforating bullet (5), detonating fuse (6), firing mount (7), breech (8), compound gunpowder (9), it is characterized in that: big gun head (1) is by connecing the body of a gun (3) under the joint (2), the body of a gun (3) lower end is connected with breech (8) with screw thread, be provided with firing mount (7) in the body of a gun (3), at interval perforating bullet (5) and compound gunpowder (9) are housed in the firing mount (7), connect with detonating fuse (6) between the perforating bullet (5); Wherein, be evenly equipped with the accurate double blinding hole (4) of wall thickness 1.5-2mm on the body of a gun (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02281033 CN2589674Y (en) | 2002-11-07 | 2002-11-07 | Precise double blind hole type composite perforating tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02281033 CN2589674Y (en) | 2002-11-07 | 2002-11-07 | Precise double blind hole type composite perforating tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2589674Y true CN2589674Y (en) | 2003-12-03 |
Family
ID=33743550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02281033 Expired - Fee Related CN2589674Y (en) | 2002-11-07 | 2002-11-07 | Precise double blind hole type composite perforating tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2589674Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064968A (en) * | 2015-08-14 | 2015-11-18 | 西安通源石油科技股份有限公司 | Oil and gas well fixed-face perforation fracturing device for hydrofracture |
| CN112302582A (en) * | 2019-07-24 | 2021-02-02 | 陕西陕哈雷泰克新材料科技有限公司 | Interval type high-efficiency perforating device |
-
2002
- 2002-11-07 CN CN 02281033 patent/CN2589674Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064968A (en) * | 2015-08-14 | 2015-11-18 | 西安通源石油科技股份有限公司 | Oil and gas well fixed-face perforation fracturing device for hydrofracture |
| CN112302582A (en) * | 2019-07-24 | 2021-02-02 | 陕西陕哈雷泰克新材料科技有限公司 | Interval type high-efficiency perforating device |
| CN112302582B (en) * | 2019-07-24 | 2024-02-06 | 陕西陕哈应用科技有限公司 | Spacing type high-efficiency perforating device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20031203 Termination date: 20111107 |