CN209457892U - A kind of Split dismountable elasticity oil pumping rod centering device - Google Patents
A kind of Split dismountable elasticity oil pumping rod centering device Download PDFInfo
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- CN209457892U CN209457892U CN201920018825.4U CN201920018825U CN209457892U CN 209457892 U CN209457892 U CN 209457892U CN 201920018825 U CN201920018825 U CN 201920018825U CN 209457892 U CN209457892 U CN 209457892U
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- centralizer body
- centralizer
- boss
- oil pumping
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Abstract
The utility model relates to a kind of Split dismountable elasticity oil pumping rod centering device, including box cupling, left centralizer body, right centralizer body, elastic force body resistance-strengthening tablets.Connection boss on elastic force body resistance-strengthening tablets cooperates with the matching hole on left centralizer body and right centralizer body respectively, is then connected by screw to together；Left and right centralizer body with the right mating groove and the concentric cooperation of right cooperation boss on right centralizer body, and is connected as an entirety by the threaded hole opened up corresponding on fastening screw and left and right centralizer body respectively by left cooperation boss and left mating groove on left centralizer body.Box cupling is fastenedly connected with the left and right centralizer body for being connected as an entirety by internal and external threads.The centralizer can carry out elastic buffer to the bending and vibration that sucker rod is subject to, and can greatly save cost only by the elastic force body resistance-strengthening tablets dismounting and change of wear-out failure when centralizer overhauls, convenient for safeguarding, have good value for applications.
Description
Technical field
The utility model relates to the sucker rod stabilizers in a kind of horizontal well sucker rod pumping equipment, particularly relate to a kind of point
The detachable elastic oil pumping rod centering device of body.
Background technique
As oil field development enters the middle and later periods, there is water content of oil well rising, the decline of well liquid hydrodynamic face, feed flow deficiency etc. is dashed forward
It goes wrong, horizontal well sucker rod pumping technology is introduced by each elephant and applied.Since horizontal well is there are certain gradient, under sucker rod
When stroke by the frictional force of plunger and pump barrel, oil liquid resistance, fluid into valve resistance, be evenly arranged on the on-way resistance of liquid on roofbolt
Etc. axial forces effect, cause rod sag to deform, in the low submergence oil well of fluid supply capacity difference, pump plunger and liquid level it
Between there are liquid hammers, cause sucker rod unstable Vibration, further increase bending load, exacerbate the abrasion of sucker rod and oil pipe, lead
Cause rod tube fracture failure.In order to solve this problem, sucker rod is separated usually using centralizer with oil pipe, improves sucker rod and exists
Centralizer in oil pipe prevents oil pick-up tube fracture and oil pipe during long-term operation worn out.
Currently, the common oil pumping rod centering device in oil field is divided into rigid centralizer and two kinds of elastic centralizer.Rigid centralizer
It is big to the support force of sucker rod in oil pipe, the centralizer for improving sucker rod is acted on significantly, but table in sucker rod and centralizer
Face is rigid contact, not can play a buffer role in when sucker rod unstable Vibration, bending deformation, sucker rod and centralizer contact point
Stress is concentrated larger.It is Elastic Contact between elastic centralizer and oil pipe, the bending deformation of sucker rod, but its can be buffered well
It is limited to the support force of sucker rod, the easily wear-out failure when sucker rod is by biggish bending deformation or vibration.
The used oil pumping rod centering device in oil field need to take out after long working wear-out failure tubing string it is whole to centralizer into
Row replacement, extends the repair time, increases maintenance cost.Therefore, for the eccentric wear problem of comprehensively solve sucker rod and oil pipe,
Need to develop a kind of novel oil pumping rod centering device.
Summary of the invention
The purpose of this utility model is that it is in view of the drawbacks of the prior art and insufficient, a kind of Split dismountable elasticity is provided
Oil pumping rod centering device, the centralizer have biggish radial support power, are able to maintain sucker rod in oil pipe with good placed in the middle
Degree, and can bending deformation to sucker rod and unstable Vibration carry out elastic buffer, effectively prevent the eccentric wear of sucker rod and tubing wall,
And each elastic body resistance-strengthening tablets of centralizer can independent dismounting and change, greatly shorten the repair time, extend sucker rod uses the longevity
Life.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of Split dismountable elasticity sucker rod
Centralizer, including box cupling, left centralizer body, right centralizer body and elastic body resistance-strengthening tablets.
Connection boss on the elasticity body resistance-strengthening tablets respectively with the matching hole on left centralizer body and right centralizer body is concentric matches
It closes, and elastic body resistance-strengthening tablets and left centralizer body is linked together by screw, elastic body resistance-strengthening tablets and right centralizer body are connected to one
It rises.
Left cooperation boss and left mating groove on the left centralizer body respectively on right centralizer body right mating groove and
The concentric cooperation of right cooperation boss, and pass through the threaded hole fastening opened up corresponding on fastening screw and left centralizer body, right centralizer body
Connection, is connected as an entirety for left centralizer body and right centralizer body.
The box cupling is opened up by external screw thread with the left centralizer body and right centralizer body upper and lower part for being connected as an entirety recessed
The internal screw thread being arranged in slot closely connects, and forms a complete Split dismountable elasticity oil pumping rod centering device.
Box cupling outer surface of upper is the conical surface, is provided with the thread groove that section is triangle along conical outer surface, lower part is annulus
Shape is equipped with external screw thread along annulus outer surface.
For the righting effect for ensuring elastic body resistance-strengthening tablets, elastic body resistance-strengthening tablets section is fan-shaped, outside interior curvature and sucker rod
Surface is identical, can be fitted close, outside set there are two connect boss.
For the close fit for guaranteeing left centralizer body and right centralizer body, left centralizer body two sides are respectively equipped with left cooperation boss and a left side
Mating groove, Zuo Peihe boss and its section of left mating groove are sector and, Zuo Peihe concentric with left righting external surface
The shape and volume of boss are consistent with left mating groove, are provided with 8 matching holes on the inside of left centralizer body, respectively with four elastic rightings
Piece is cooperatively connected, and left centralizer body has groove above and below, the internal screw thread matched with the external screw thread of box cupling is arranged inside.
The structure type of right centralizer body is identical as left centralizer body, and difference is that the left cooperation boss of left centralizer body corresponds to the right side and helps
The right mating groove of roman, left mating groove correspond to the right cooperation boss of right centralizer body.
The utility model has the beneficial effects that the utility model oil pumping rod centering device can help well sucker rod
Just, it is ensured that sucker rod has good centralizer in oil pipe, can bear biggish radial forces, becomes to the bending of sucker rod
Shape and unstable Vibration carry out elastic buffer, effectively prevent R a T from generating eccentric wear, extend sucker rod service life, together
When only need to change the elastic body resistance-strengthening tablets of serious wear in the failure of centralizer long working, without to entire oil pumping rod centering device
It is replaced, shortens the repair time, reduce the cost of overhaul.
Detailed description of the invention
Fig. 1 is the semi-section structural schematic diagram of the utility model.
Fig. 2 is elastic body resistance-strengthening tablets structural schematic diagram.
Fig. 3 is centralizer positive structure diagram.
Fig. 4 is centralizer D-D diagrammatic cross-section.
Fig. 5 is centralizer E-E diagrammatic cross-section.
Fig. 6 is left centralizer body structural schematic diagram.
Fig. 7 is right centralizer body structural schematic diagram.
Fig. 8 is box cupling structural schematic diagram.
In figure: 1- sucker rod, 20- box cupling, 21- external screw thread, 22- thread groove, 3- screw, 4- elasticity body resistance-strengthening tablets, 50- are helped on a left side
Roman, the left cooperation boss of 51-, the left mating groove of 52-, the right centralizer body of 60-, the right cooperation boss of 61-, the right mating groove of 62-, 7- are tight
Gu screw, 8- connection boss, 9- matching hole, 10- groove, 11- internal screw thread.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments, but not as to the utility model
Restriction.
As shown in Figure 1, the utility model proposes a kind of Split dismountable elasticity oil pumping rod centering device include box cupling 20,
Left centralizer body 50, right centralizer body 60 and elastic body resistance-strengthening tablets 4.
Connection boss 8 on elastic body resistance-strengthening tablets 4 is concentric with the matching hole 9 on left centralizer body 50 and right centralizer body 60 respectively
Cooperation, and elastic body resistance-strengthening tablets 4 and left centralizer body 50 are linked together by screw 3, by elastic body resistance-strengthening tablets 4 and right centralizer body 60
It links together.
Left cooperation boss 51 and left mating groove 52 on the left centralizer body 50 are matched with the right side on right centralizer body 60 respectively
Groove 62 and the concentric cooperation of right cooperation boss 61 are closed, and by corresponding on fastening screw 7 and left centralizer body 50, right centralizer body 60
The threaded hole opened up is fastenedly connected, and left centralizer body 50 and right centralizer body 60 are connected as an entirety；
Box cupling 20 is opened up by external screw thread 21 with the left centralizer body 50 and 60 upper and lower part of right centralizer body for being connected as an entirety
Groove 10 in be arranged internal screw thread 11 closely connect, form a complete Split dismountable elasticity oil pumping rod centering device.
As shown in figure 8,20 outer surface of upper of box cupling is the conical surface, the thread groove that section is triangle is provided with along conical outer surface
22, lower part is circular ring shape, is equipped with external screw thread 21 along annulus outer surface.
As shown in Fig. 2, elastic 4 section of body resistance-strengthening tablets is sector, interior curvature is identical as oil pumping rod outer surface, can closely match
Close, outside set there are two connect boss 8.
As shown in fig. 6, left 50 two sides of centralizer body are respectively equipped with left cooperation boss 51 and left mating groove 52, Zuo Peihe boss
51 and its section of left mating groove 52 be sector and concentric with left 50 outer surface of centralizer body, the shape of Zuo Peihe boss 51 and
Volume and left mating groove 52 are consistent, and 8 matching holes 9 are provided on the inside of left centralizer body 50, cooperate respectively with four elastic body resistance-strengthening tablets 4
Connection, left centralizer body 50 have groove 10 above and below, the internal screw thread matched with the external screw thread 21 of box cupling 20 are arranged inside
11。
As shown in fig. 7, the structure type of right centralizer body 60 is identical as left centralizer body 50, difference is a left side for left centralizer body 50
Cooperate the right mating groove 62 of the corresponding right centralizer body 60 of boss 51, the right cooperation boss of the corresponding right centralizer body 60 of left mating groove 52
61。
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those skilled in the art within the technical scope disclosed by the invention, can without the variation that creative work is expected or
Replacement, should be covered by the protection scope of the present invention.Therefore protection scope of the present invention should be limited with claims
Subject to fixed protection scope.
Claims (5)
1. a kind of Split dismountable elasticity oil pumping rod centering device, including box cupling (20), left centralizer body (50), right centralizer body (60)
With elastic body resistance-strengthening tablets (4), which is characterized in that connection boss (8) on elasticity body resistance-strengthening tablets (4) respectively with left centralizer body (50)
With matching hole (9) concentric cooperation on right centralizer body (60), and by screw (3) by elastic body resistance-strengthening tablets (4) and left centralizer body
(50) it links together, elastic body resistance-strengthening tablets (4) and right centralizer body (60) is linked together；
Left cooperation boss (51) and left mating groove (52) on the left centralizer body (50) is respectively and on right centralizer body (60)
Right mating groove (62) and the concentric cooperation of right cooperation boss (61), and helped by fastening screw (7) and left centralizer body (50), the right side
The corresponding threaded hole opened up is fastenedly connected on roman (60), by left centralizer body (50) and right centralizer body (60) be connected as one it is whole
Body；
The box cupling (20) by external screw thread (21) and be connected as on the left centralizer body (50) and right centralizer body (60) of an entirety,
The internal screw thread (11) being arranged in the groove (10) that lower part opens up closely connects, and the complete Split dismountable elasticity of composition one is taken out
Beam centralizer.
2. a kind of Split dismountable elasticity oil pumping rod centering device according to claim 1, which is characterized in that box cupling (20)
Outer surface of upper is the conical surface, is provided with the thread groove (22) that section is triangle along conical outer surface, lower part is circular ring shape, along annulus
Outer surface is equipped with external screw thread (21).
3. a kind of Split dismountable elasticity oil pumping rod centering device according to claim 1, which is characterized in that elastic righting
Piece (4) section be sector, interior curvature with oil pumping rod outer surface it is identical, can be fitted close, outside set there are two connection boss
(8).
4. a kind of Split dismountable elasticity oil pumping rod centering device according to claim 1, which is characterized in that left centralizer body
(50) two sides are respectively equipped with left cooperation boss (51) and left mating groove (52), Zuo Peihe boss (51) and left mating groove (52)
Its section is sector and, the shape and volume and Zuo Peihe of Zuo Peihe boss (51) concentric with left centralizer body (50) outer surface
Groove (52) unanimously, is provided with 8 matching holes (9) on the inside of left centralizer body (50), cooperates with four elastic body resistance-strengthening tablets (4) connect respectively
It connects, left centralizer body (50) has groove (10) above and below, is arranged inside and matches with the external screw thread (21) of box cupling (20)
Internal screw thread (11).
5. a kind of Split dismountable elasticity oil pumping rod centering device according to claim 1, the structure of right centralizer body (60)
Form is identical as left centralizer body (50), and difference is the corresponding right centralizer body (60) of the left cooperation boss (51) of left centralizer body (50)
Right mating groove (62), the right cooperation boss (61) of the corresponding right centralizer body (60) of left mating groove (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920018825.4U CN209457892U (en) | 2019-01-07 | 2019-01-07 | A kind of Split dismountable elasticity oil pumping rod centering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920018825.4U CN209457892U (en) | 2019-01-07 | 2019-01-07 | A kind of Split dismountable elasticity oil pumping rod centering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209457892U true CN209457892U (en) | 2019-10-01 |
Family
ID=68043740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920018825.4U Expired - Fee Related CN209457892U (en) | 2019-01-07 | 2019-01-07 | A kind of Split dismountable elasticity oil pumping rod centering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209457892U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115324498A (en) * | 2022-09-09 | 2022-11-11 | 东营华辰石油装备有限公司 | Oil field production is with sucker rod centralizer that has shape of preapring for an unfavorable turn of events position function |
-
2019
- 2019-01-07 CN CN201920018825.4U patent/CN209457892U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115324498A (en) * | 2022-09-09 | 2022-11-11 | 东营华辰石油装备有限公司 | Oil field production is with sucker rod centralizer that has shape of preapring for an unfavorable turn of events position function |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191001 Termination date: 20200107 |
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| CF01 | Termination of patent right due to non-payment of annual fee |