CN204941494U - A kind of bridge type eccentric injection mandrel - Google Patents
A kind of bridge type eccentric injection mandrel Download PDFInfo
- Publication number
- CN204941494U CN204941494U CN201520636448.2U CN201520636448U CN204941494U CN 204941494 U CN204941494 U CN 204941494U CN 201520636448 U CN201520636448 U CN 201520636448U CN 204941494 U CN204941494 U CN 204941494U
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- China
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- main body
- bridge type
- eccentric
- overcoat
- injection mandrel
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Abstract
The utility model discloses a kind of bridge type eccentric injection mandrel, comprise top connection, top connection is coaxially connected with successively overcoat, main body, lower overcoat and lower contact, centralizer body is provided with in upper overcoat, centralizer body is provided with eccentric ring-shaped lug, main body is provided with the eccentric annular recess that to match with ring-shaped lug, in main body, is coaxially connected with the gaily decorated basket and guide way successively.Bridge type eccentric injection mandrel main body and centralizer body, due to a principle for off-centre operation, ensure that centralizer body can not rotate; Top connection is connected with upper overcoat, impaction and upending body, and main body is connected with upper overcoat, ensures that centralizer body can not play up and down.Bridge type eccentric injection mandrel of the present utility model, not only improve and improve stability, and righting is effective, improve that instrument goes into the well by property, reduce pulling and to be hampered problem, ensure that underground work is carried out smoothly.
Description
Technical field
The utility model belongs to oil-field flooding technical field of tools, relates to a kind of bridge type eccentric injection mandrel.
Background technology
Bridge type eccentric injection mandrel is the instrument that oilfield downhole operation is conventional, is mainly used in separate water injection well water filling, pulls out water nozzle by test throwing, the allotment water yield.The bridge type eccentric injection mandrel subject matter of current application is that pulling is hampered, and causes the main cause of this phenomenon to be that centralizer body is fixed bad, centralizer body and main body eccentric center water-distributing axially bored line not parallel, throw in catcher is difficult to reap blanking plug, easily causes pulling to be hampered phenomenon.
Utility model content
The purpose of this utility model there are provided a kind of bridge type eccentric injection mandrel, solves existing bridge type eccentric injection mandrel centralizer body and fixes bad problem.
The technical scheme that the utility model adopts is, a kind of bridge type eccentric injection mandrel, comprise top connection, top connection is coaxially connected with successively overcoat, main body, lower overcoat and lower contact, centralizer body is provided with in upper overcoat, centralizer body is provided with eccentric ring-shaped lug, main body is provided with the eccentric annular recess that to match with ring-shaped lug, in main body, is coaxially connected with the gaily decorated basket and guide way successively.
Feature of the present utility model is also,
Centralizer body and upper overcoat pass through screwed connection.
Top connection and upper overcoat pass through screwed connection.
Upper overcoat and main body pass through screwed connection.
Main body is provided with eccentric center water-distributing hole, eccentric flowing hole and central passage hole, eccentric flowing hole evenly arranges 4.
The beneficial effects of the utility model are: a kind of bridge type eccentric injection mandrel main body and centralizer body, due to the principle of off-centre operation, ensure that centralizer body can not rotate; Top connection is connected with upper overcoat, impaction and upending body, and main body is connected with upper overcoat, ensures that centralizer body can not play up and down.Bridge type eccentric injection mandrel of the present utility model, not only improve and improve stability, and righting is effective, improve that instrument goes into the well by property, reduce pulling and to be hampered problem, ensure that underground work is carried out smoothly.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of bridge type eccentric injection mandrel of the utility model;
Fig. 2 is A-A sectional view in Fig. 1.
In figure, 1. top connection, 2. goes up overcoat, 3. centralizer body, 4. main body, 5. descends overcoat, 6. the gaily decorated basket, 7. guide way, 8. lower contact, 9. eccentric center water-distributing hole, 10. eccentric flowing hole, 11. central passage holes, 12. annular grooves, 13. ring-shaped lugs.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
The utility model provides a kind of bridge type eccentric injection mandrel, as shown in Figure 1, comprise top connection 1, top connection 1 is coaxially connected with successively overcoat 2, main body 4, lower overcoat 5 and lower contact 8, centralizer body 3 is provided with in upper overcoat 2, centralizer body 3 is provided with eccentric ring-shaped lug 13, main body 4 is provided with the eccentric annular recess 12 that to match with ring-shaped lug 13, in main body 4, is coaxially connected with the gaily decorated basket 6 and guide way 7 successively;
Centralizer body 3 and upper overcoat 2 pass through screwed connection;
Top connection 1 and upper overcoat 2 pass through screwed connection;
Upper overcoat 2 and main body 4 pass through screwed connection.
As shown in Figure 2, main body 4 is provided with eccentric center water-distributing hole 9, eccentric flowing hole 10 and central passage hole 11, eccentric flowing hole 10 evenly arranges 4.
The using method of a kind of bridge type eccentric injection mandrel of the utility model is: the utility model is put into well, when the utility model is by throw in catcher, centralizer body 3 is fixed between top connection 1 and main body 4, main body 4 is provided with eccentric annular recess 12, annular groove 12 center line and main body 4 centerline parallel, the diameter of annular groove 12 is greater than the diameter in the central passage hole 11 in main body 4; Centralizer body 3 is provided with eccentric ring-shaped lug 13, ring-shaped lug 13 outer center line and centralizer body 3 centerline parallel, ring-shaped lug 13 and annular groove 12 match, and main body 4 and the principle of centralizer body 3 due to off-centre operation, ensure that centralizer body 3 can not rotate; Top connection 1 is connected with upper overcoat 2, impaction and upending body 3, and main body 4 is connected with upper overcoat 2, ensures that centralizer body 3 can not play up and down.
A kind of bridge type eccentric injection mandrel of the present utility model is provided with centralizer body 3, centralizer body 3 is fixed between top connection 1 and main body 4, main body 4 is provided with eccentric annular recess 12, annular groove 12 center line and main body 4 centerline parallel, the diameter of annular groove 12 is greater than the diameter in the central passage hole 11 in main body 4; Centralizer body 3 is provided with eccentric ring-shaped lug 13, ring-shaped lug 13 outer center line and centralizer body 3 centerline parallel, ring-shaped lug 13 and annular groove 12 match, and main body 4 and the principle of centralizer body 3 due to off-centre operation, ensure that centralizer body 3 can not rotate; Top connection 1 is connected with upper overcoat 2, impaction and upending body 3, and main body 4 is connected with upper overcoat 2, ensures that centralizer body 3 can not play up and down.Bridge type eccentric injection mandrel of the present utility model, not only improve and improve stability, and righting is effective, improve that instrument goes into the well by property, reduce pulling and to be hampered problem, ensure that underground work is carried out smoothly.
Claims (5)
1. a bridge type eccentric injection mandrel, it is characterized in that: comprise top connection (1), top connection (1) is coaxially connected with successively overcoat (2), main body (4), lower overcoat (5) and lower contact (8), centralizer body (3) is provided with in upper overcoat (2), centralizer body (3) is provided with eccentric ring-shaped lug (13), main body (4) is provided with the eccentric annular recess (12) that to match with ring-shaped lug (13), in main body (4), is coaxially connected with the gaily decorated basket (6) and guide way (7) successively.
2. a kind of bridge type eccentric injection mandrel according to claim 1, is characterized in that: described centralizer body (3) and upper overcoat (2) pass through screwed connection.
3. a kind of bridge type eccentric injection mandrel according to claim 1, is characterized in that: described top connection (1) and upper overcoat (2) pass through screwed connection.
4. a kind of bridge type eccentric injection mandrel according to claim 1, is characterized in that: described upper overcoat (2) and main body (4) pass through screwed connection.
5. a kind of bridge type eccentric injection mandrel according to any one of claim 1-4, it is characterized in that: described main body (4) is provided with eccentric center water-distributing hole (9), eccentric flowing hole (10) and central passage hole (11), eccentric flowing hole (10) evenly arranges 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520636448.2U CN204941494U (en) | 2015-08-21 | 2015-08-21 | A kind of bridge type eccentric injection mandrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520636448.2U CN204941494U (en) | 2015-08-21 | 2015-08-21 | A kind of bridge type eccentric injection mandrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204941494U true CN204941494U (en) | 2016-01-06 |
Family
ID=55008935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520636448.2U Expired - Fee Related CN204941494U (en) | 2015-08-21 | 2015-08-21 | A kind of bridge type eccentric injection mandrel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204941494U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107448181A (en) * | 2017-08-24 | 2017-12-08 | 延长油田股份有限公司 | Casting and dragging free tests measurement and adjustment instrument |
| CN110847869A (en) * | 2019-11-15 | 2020-02-28 | 大庆市海兴石油科技发展有限公司 | Novel eccentric water distributor with pressure seal checking function |
-
2015
- 2015-08-21 CN CN201520636448.2U patent/CN204941494U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107448181A (en) * | 2017-08-24 | 2017-12-08 | 延长油田股份有限公司 | Casting and dragging free tests measurement and adjustment instrument |
| CN110847869A (en) * | 2019-11-15 | 2020-02-28 | 大庆市海兴石油科技发展有限公司 | Novel eccentric water distributor with pressure seal checking function |
| CN110847869B (en) * | 2019-11-15 | 2020-06-09 | 大庆市海兴石油科技发展有限公司 | Eccentric water distributor with pressure seal checking |
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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 |
Granted publication date: 20160106 Termination date: 20170821 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |