CN207750069U - A kind of pumping directional type perforating gun - Google Patents
A kind of pumping directional type perforating gun Download PDFInfo
- Publication number
- CN207750069U CN207750069U CN201820499071.4U CN201820499071U CN207750069U CN 207750069 U CN207750069 U CN 207750069U CN 201820499071 U CN201820499071 U CN 201820499071U CN 207750069 U CN207750069 U CN 207750069U
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- gun body
- blind hole
- gun
- perforating
- verge
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Abstract
The utility model is related to Oil-Gas Field Development Engineering fields, and in particular to a kind of pumping directional type perforating gun.After the utility model solves perforating gun tripping in stratum, it can not ensure that perforating bullet injects direction and the shallower problem of perforating bullet penetrating depth.A kind of pumping directional type perforating gun, including gun body, gun body is interior to be equipped with firing mount, and perforating bullet is fixed on firing mount, and the gun body is metal tube；The gun body inner surface is equipped with interior blind hole, the interior blind hole quantity are multiple correspondingly with perforating bullet；The corresponding gun body outer surface of the interior blind hole is equipped with outer blind hole；Further include orienting device, the orienting device includes verge ring, and the verge ring is Eccentric Circular Ring, and the quantity of the verge ring is two, and described two verge rings are arranged, are fixed on the both ends of gun body respectively, and two orientation directions of loop are identical；Angle on verge ring between its inner circle center of circle and the line and perforation direction in the outer circle center of circle meets pre-provisioning request.
Description
Technical field
The utility model is related to Oil-Gas Field Development Engineering fields, and in particular to a kind of pumping directional type perforating gun.
Background technology
Horizontal well increases oil and gas production because it can increase the bare area of oil-gas Layer, has in recent years in each major oil and gas field
More application ends 2013, does not include sinopec, CNOOC and the horizontal well quantity for extending oil, only petrochina horizontal well
Quantity just close to 6000 mouthfuls, horizontal well is suitable for oil sheet and fractured reservoir, faster especially for development in recent years
Shale oil, shale gas, it is more applicable.
The technical difficulty of horizontal well drilling is larger, the perforation difficulty bigger before operation.For the perforation of common straight well, oil is utilized
Perforating gun is put into perforated interval by pipe, but for horizontal well perforation, utilizes oil pipe transportation perforating gun tripping in horizontal segment difficulty
It is larger, cable and perforating gun are sent by horizontal perforated interval using pumping mode at present, pumping mode is to utilize high-pressure pump in well head
Xiang Jingli suppresses liquid, and perforating gun is finally pushed into horizontal perforated interval.
It should be towards the thicker direction of oil reservoir, because its oil reservoir corresponds to pit shaft in the perforation direction of each horizontal perforated interval, perforating bullet
Orientation it is different, the direction that perforating bullet is injected is also different, and the orientation of perforated interval oil reservoir can show that perforating gun is penetrated according to log data
Hole ejects orientation and can in advance be processed in factory, still, behind perforating gun tripping in stratum, because perforating gun rotates in casing, nothing
Method ensures that perforating bullet injects targeting oil reservoir.
Invention content
In order to solve technical problem present in background technology, the utility model provides a kind of pumping directional type perforation
Rifle, the perforating gun increase positioning device, it is ensured that perforating bullet injects target target position.
The technical solution that the utility model solves the above problems is a kind of pumping directional type perforating gun, including gun body, gun body
It is interior to be equipped with firing mount, perforating bullet is fixed on firing mount, is characterized in that：
The gun body is metal tube；The gun body inner surface be equipped with perforating bullet correspondingly in blind hole, it is described interior blind
Hole number is multiple；The corresponding gun body outer surface of the interior blind hole is equipped with outer blind hole；
Further include orienting device, the orienting device includes verge ring, and the verge ring is Eccentric Circular Ring, the verge ring
Quantity be two, described two verge rings are arranged, are fixed on the both ends of gun body respectively, and two orientation directions of loop are identical；
Angle on verge ring between its inner circle center of circle and the line and perforation direction in the outer circle center of circle meets pre-provisioning request.
It is the basic structure of the utility model above, is based on the basic structure, the utility model is also made following optimization and changed
Into：
Further, above-mentioned verge ring inner wall is equipped with the first keyway, and gun body outer wall is equipped with corresponding with the first keyway
Second keyway is equipped with positioning key between the first keyway and the second keyway.
Further, the bottom surface of above-mentioned interior blind hole is smooth spherical surface.
Further, the distance of above-mentioned interior blind hole bottom surface to outer blind hole bottom surface is 1-5mm.
Further, the steel strength of above-mentioned gun body is the 130-150 grade of steels of API standard.
Further, the steel strength of above-mentioned gun body is 150 grade of steels of API standard.
The advantages of the utility model：
1, a kind of pumping directional type perforating gun of the utility model, gun body both ends are provided with eccentric verge ring, using penetrating
The rifle gravity of itself in hole makes perforating gun remain at the lowest point of verge ring, ensures that perforation direction reaches preset direction；
2, a kind of pumping directional type perforating gun of the utility model has by blind hole, outer blind hole in being arranged simultaneously in gun body
The height of burst of perforating bullet is increased to effect, meanwhile, under conditions of pressure allows, reduce the tubing between interior blind hole, outer blind hole
Wall thickness improves perforating bullet and wears deep poor problem；
3, a kind of pumping directional type perforating gun of the utility model is equipped with corresponding interior blind hole and outer blind hole in gun body, interior
It is not connected between blind hole, outer blind hole, gun body will not be caused to leak, ensured production safety, while meeting compression strength, improve
Perforating effect is conducive to frscturing；
4, a kind of pumping directional type perforating gun of the utility model, the setting of interior blind hole bottom surface smooth sphere make interior blind hole answer
Power is concentrated, and perforating bullet readily penetrates through blind via bottom, realizes the purpose for increasing the height of burst；In addition, the setting of smooth arc-shaped surface can also subtract
There is a situation where full wafer clasts all to fall off in perforating job for few gun body, avoids card rifle accident；
5, a kind of pumping directional type perforating gun of the utility model, not only supporting role is good for the gun body of high intensity, but also internal
It is high pressure resistant so that perforation rear lance swells smaller, reduces and the possibility of card well accident occurs because the body of a gun swells.
Description of the drawings
Fig. 1 is the front view of verge ring in a kind of pumping directional type perforating gun of the utility model；
Fig. 2 is A-A sectional views in Fig. 1；
Fig. 3 is a kind of installation diagram of pumping directional type perforating gun of the utility model；
Fig. 4 is the B-B sectional views in Fig. 3；
Fig. 5 is a kind of state diagram of the pumping directional type perforating gun of the utility model in horizontal well.
Wherein, 1- gun bodies；2- firing mounts；3- perforating bullets；Blind hole in 4-；5- verge rings；The first keyways of 6-；8- positioning keys；9-
Cable；10- casings；The outer blind holes of 11-.
Specific implementation mode
The preferred embodiment of the utility model is illustrated below in conjunction with attached drawing, it should be understood that described herein excellent
It selects embodiment to be only used for describing and explaining the present invention, is not used to limit the utility model.
Referring to Fig. 3 and Fig. 4, a kind of pumping directional type perforating gun, including gun body 1 is equipped with firing mount 2 in gun body 1, on firing mount 2
Fixed perforating bullet 3.
Gun body 1 is metal tube；1 inner surface of the gun body be equipped with perforating bullet 3 it is one-to-one in blind hole 4, it is described interior blind
4 quantity of hole is multiple；4 corresponding gun body of interior blind hole, 1 outer surface is equipped with outer blind hole 11.
Orienting device is additionally provided in gun body 1, the orienting device includes (referring to Fig. 1 and Fig. 2) verge ring 5, the orientation
Ring 5 is Eccentric Circular Ring, and the quantity of the verge ring 5 is two, and described two verge rings 5 are arranged, are fixed on the two of gun body 1 respectively
End, the orientation of two verge rings 5 are identical；5 inner wall of verge ring is equipped with the first keyway 6, and 1 outer wall of gun body is equipped with and the first keyway
6 corresponding second keyways are equipped with positioning key 8 between the first keyway 6 and the second keyway.
Angle on verge ring 5 between its inner circle center of circle and the line and perforation direction in the outer circle center of circle meets pre-provisioning request.
The bottom surface of interior blind hole 4 is smooth spherical surface.The distance of 4 bottom surface of interior blind hole to 11 bottom surface of outer blind hole is 1-5mm.It is described
The steel strength of gun body 1 is the 130-150 grade of steels of API standard, 150 grade of steels of the preferred API standard of steel strength of gun body 1.
Referring to Fig. 3 and Fig. 5, the operation principle of the utility model is：Wellbore finishing drilling after tripping in casing 10, is penetrated
Hole is put into pit shaft after connecting perforating gun and cable 9, squeezes into pit shaft well killing fluid using high-pressure pump in well head, utilize kill-job
Perforating gun is pushed to horizontal perforated interval by the flowing of liquid, and gun body 1 is arranged in eccentric verge ring 5, and gun body 1 utilizes its own weight
Power makes perforating gun no matter in any position of horizontal segment, and perforating gun in the lowest point of verge ring 5, realizes the purpose of positioning always,
And the interior blind hole on perforating gun has carried out accurately positioning according to shaft bottom log data in processing factory and has processed, therefore can ensure to penetrate
Hole bullet is shot towards scheduled perforation direction, after perforating bullet 3 punctures 11 corresponding body of a gun outer wall of interior blind hole 4 and outer blind hole, is injected
Target oil reservoir.
Claims (6)
1. a kind of pumping directional type perforating gun, including gun body (1), gun body (1) is interior to be equipped with firing mount (2), and firing mount fixes perforation on (2)
Bullet (3), it is characterised in that：
The gun body (1) is metal tube；Gun body (1) inner surface be equipped with perforating bullet (3) it is one-to-one in blind hole (4),
Interior blind hole (4) quantity is multiple；Corresponding gun body (1) outer surface of the interior blind hole (4) is equipped with outer blind hole (11)；
Further include orienting device, the orienting device includes verge ring (5), and the verge ring (5) is Eccentric Circular Ring, the orientation
The quantity of ring (5) is two, and two verge rings (5) are arranged, are fixed on the both ends of gun body (1), the side of two verge rings (5) respectively
Position is identical.
2. a kind of pumping directional type perforating gun according to claim 1, it is characterised in that：On verge ring (5) inner wall
Equipped with the first keyway (6), gun body (1) outer wall is equipped with the second keyway corresponding with the first keyway (6), the first keyway (6) and the
Positioning key (8) is equipped between two keyways.
3. a kind of pumping directional type perforating gun according to claim 1 or 2, it is characterised in that：The bottom of the interior blind hole (4)
Face is smooth spherical surface.
4. a kind of pumping directional type perforating gun according to claim 3, it is characterised in that：Interior blind hole (4) bottom surface is extremely
The distance of outer blind hole (11) bottom surface is 1-5mm.
5. a kind of pumping directional type perforating gun according to claim 4, it is characterised in that：The steel of the gun body (1) are strong
Degree is the 130-150 grade of steels of API standard.
6. a kind of pumping directional type perforating gun according to claim 5, it is characterised in that：The steel of the gun body (1) are strong
Degree is 150 grade of steels of API standard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820499071.4U CN207750069U (en) | 2018-04-08 | 2018-04-08 | A kind of pumping directional type perforating gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820499071.4U CN207750069U (en) | 2018-04-08 | 2018-04-08 | A kind of pumping directional type perforating gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207750069U true CN207750069U (en) | 2018-08-21 |
Family
ID=63154848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820499071.4U Expired - Fee Related CN207750069U (en) | 2018-04-08 | 2018-04-08 | A kind of pumping directional type perforating gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207750069U (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 |
-
2018
- 2018-04-08 CN CN201820499071.4U patent/CN207750069U/en not_active Expired - Fee Related
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 |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20180821 Termination date: 20210408 |