CN106401500A - Ball sucker rod centralizer - Google Patents
Ball sucker rod centralizer Download PDFInfo
- Publication number
- CN106401500A CN106401500A CN201611002279.2A CN201611002279A CN106401500A CN 106401500 A CN106401500 A CN 106401500A CN 201611002279 A CN201611002279 A CN 201611002279A CN 106401500 A CN106401500 A CN 106401500A
- Authority
- CN
- China
- Prior art keywords
- ball
- centralizer
- sucker rod
- groove
- outer tube
- 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.)
- Withdrawn
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 17
- 239000010959 steel Substances 0.000 claims abstract description 17
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000005299 abrasion Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000005086 pumping Methods 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1057—Centralising devices with rollers or with a relatively rotating sleeve
- E21B17/1064—Pipes or rods with a relatively rotating sleeve
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1071—Wear protectors; Centralising devices, e.g. stabilisers specially adapted for pump rods, e.g. sucker rods
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a sucker rod centralizer. The sucker rod centralizer comprises a core. A centralizing body is arranged at the middle portion of the core and comprises an outer barrel, steel balls and cover plates. A centralizing block is arranged on the surface of the outer barrel of the centralizing body and provided with a rotation piece. Annular holders are arranged at the two ends of the centralizing body, and evenly provided with circular holes matched with the steel balls. The annular holders are arranged between the outer barrel and the core. The steel balls are arranged in the circular holes of the annular holders. The cover plates are arranged at the two ends of the centralizing body. The rotation piece comprises a ball, a groove, auxiliary balls, a limiting cover plate and ball holders. The groove is formed in the centralizing block. The auxiliary balls are arranged at the bottom and the four faces of the groove correspondingly and fixed through the ball holders, the auxiliary balls make contact with the ball, the ball is arranged in the groove, and the top of the ball protrudes out of the groove. The limiting cover plate is provided with a circular hole, and the diameter of the circular hole is smaller than that of the ball. When the sucker rod centralizer is applied, borne resistance can be greatly reduced, abrasion of the centralizer is reduced, and the service life of the centralizer is prolonged.
Description
Technical field
The present invention relates to oil recovery aid field, particularly to a kind of ball bearing for sucker rod centralizer.
Background technology
At present, oil pumping rod centering device is widely used in oil well acquisition, is the downhole tool of anti-sucker rod partial wear it is adaptable to partially
The rod-pumped well of mill, is particularly suited for rod-pumped well and the deviated directional drilling of the above eccentric wear of the sucker rod point of neutralization, the sucker rod point of neutralization
Hereinafter, coordinate with the nylon centralising device on the oil pumping body of rod, eccentric abrasion prevention is better.
Sucker rod is up and down in oil pipe, and due to the elastic deformation of sucker rod, bar and tubing wall easily produce friction, take out
Beam hanger easily breaks de-, and oil pumping rod centering device has that pliability is strong, it contacts with tube inner wall, it is possible to reduce the friction of bar and pipe,
Strengthen the oil recovery life-span of oil pumper.Centralizer is connected on sucker rod, and the external diameter using supporting positive cover is more than rod collar external diameter
Play centralizing function；It is High Strength Wear-Resistance Material using supporting positive cover, contact with oil pipe and so that centralizer body is worn and torn, and reduce the mill of oil pipe
Damage, to reach the purpose of eccentric abrasion prevention.
During oil extraction operation, the activity of sucker rod makes oil pipe produce certain vertical and horizontal power to centralizer, from
And so that centralizer is hampered impact, common centralizer cannot reduce the both direction resistance being subject to, and in the presence of frictional force, leads to
Centralizer service life is short, and easily makes sucker rod impaired, and general rolling wheel centralizer is due to the restriction of roller rotating direction, no
Method eliminates the transverse component producing, and resistance is big, easy damaged sucker rod.
Content of the invention
The present invention cannot eliminate or effectively reduce, in order to overcome existing oil pumping rod centering device to exist, the water that centralizer is subject to
The resistance of gentle vertical direction, leads to centralizer service life short, the easily damaged defect of sucker rod, there is provided a kind of sucker rod is helped
Positive device, can effectively reduce the resistance that in oil extraction operation, centralizer is subject to, improve centralizer service life, more effectively protect
Sucker rod.
For reaching object above, the present invention adopts the following technical scheme that：
A kind of ball bearing for sucker rod centralizer, including core body, is provided with centralizer body in the middle part of core body, centralizer body external diameter is more than outside sucker rod
Footpath；Centralizer body includes outer tube, steel ball and cover plate；Its outer barrel surface is provided with wiper block, and wiper block is provided with tumbler, righting
Body two ends are provided with annular retainer, and annular retainer is evenly arranged with the circular hole being mated with steel ball, and annular retaining sets up
It is placed between outer tube and core body, be fixed on core body outer wall, steel ball is arranged in the circular hole of annular retainer；Cover plate is arranged on to be helped
Roman two ends；Tumbler includes ball, groove, auxiliary ball, spacing cover plate and ball retainer；Groove is arranged on wiper block
On, auxiliary ball is separately positioned on bottom and the four sides of groove, is fixed by ball retainer, and and ball contact, ball sets
Put in a groove, its top projects groove, and spacing cover plate is provided with circular hole, Circularhole diameter is less than the diameter of ball.
Steel ball setting between centralizer body outer tube and core body can make centralizer body outer tube with power when by horizontal force
Direction rotates, and eliminates part of horizontal resistance, the ball of tumbler can allow centralizer be moved up and down with sucker rod work, auxiliary
The setting helping ball then can allow rolling carry out the rotation of any direction, when such as centralizer is simultaneously by vertically and horizontally resistance, also
Can ensure that centralizer body moves in a circle while moving vertically.
Further, in core body axis, wiper block is uniformly distributed it is ensured that helping the diameter parallel of wiper block along outer tube circumferencial direction
Positive device energy uniform stressed, stablizes sucker rod.
Preferably, along outer tube circumferencial direction at least provided with 3 groups, every group of tumbler is at least 1 to tumbler, and at least 3 groups turn
Moving part ensure that centralizer can be contacted with even tube wall in pipe circumference direction, increases the stablizing effect of centralizer.
Further, the two ends of outer tube are also respectively provided with limited impression, and cover plate embeds centralizer body two ends by limited impression
Outer tube and core body between, for sealed outer cylinder and core body, simultaneously spacing to steel ball further.
The present invention compared with prior art has the following advantages：
When being acted on by horizontal force, its outer tube can rotate in the presence of steel ball centralizer body, eliminates part of horizontal stress, with
When ball can carry out the rotation of any direction, the power of horizontal direction can be absorbed while eliminating part vertical direction resistance,
Substantially reduce the frictional force that centralizer is subject to, extend centralizer service life, be effectively protected sucker rod.
Brief description
Accompanying drawing described herein is used for providing the embodiment of the present invention is further understood, and constitutes of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is present configuration schematic diagram；
Fig. 2 is profile of the present invention；
Fig. 3 is tumbler enlarged drawing；
Parts title corresponding to labelling in accompanying drawing：1- core body, 2- centralizer body, 22- wiper block, 23- outer tube, 25- retainer,
26- steel ball, 27- limited impression, 28- cover plate, 241- ball, 242- groove, 243- assists ball, the spacing cover plate of 244-, 245-
Ball retainer.
Specific embodiment
For making the object, technical solutions and advantages of the present invention become more apparent, with reference to embodiment and accompanying drawing, to this
Invention is described in further detail, and the exemplary embodiment of the present invention and its explanation are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment
As Fig. 1, shown in Fig. 2, Fig. 3, a kind of ball bearing for sucker rod centralizer structure schematic diagram of the present invention, a kind of ball oil pumping
Bar centralizer, including core body 1, the two ends of core body 1 are interface, and centralizer body 2 is arranged between two end interfaces, and centralizer body 2 external diameter is big
In sucker rod external diameter；Centralizer body 2 includes outer tube 23, steel ball 26 and cover plate 28；Outer tube 23 surface is provided with wiper block 22, wiper block
It is provided with tumbler 24, centralizer body 2 two ends are provided with annular retainer 25, and annular retainer 25 is arranged at outer tube 23 He on 22
Between core body 1, it is weldingly fixed on core body 1 outer wall, its ring surface and core body 1 outside wall parallel, annular retainer 25 uniformly sets
It is equipped with the circular hole mating with steel ball 26, steel ball 26 is positioned in the circular hole of annular retainer 25；Cover plate 28 embeds outer tube 23 two ends
Limited impression 27 in, closing outer tube 23 and core body 1 between space；Groove 242 on tumbler 24 is arranged on wiper block 22
On, the bottom of groove and four sides are respectively arranged with an auxiliary ball 243, and fixing by ball retainer 245, ball 241 is put
It is placed in groove 242, contact with auxiliary ball 243, its top protrudes from groove 242, and spacing cover plate 244 is provided with circular hole,
Circularhole diameter is less than the diameter of ball 241, and spacing cover plate 244 covers ball 241, is anchored on wiper block 22.
Two ends of the present invention are connected with sucker rod respectively, during sucker rod work, centralizer moves up and down with sucker rod, rolling
Pearl is contacted with inner-walls of duct, and with the uneven stress in motor process, the outer tube 23 of centralizer body 2 enters in the presence of steel ball 26
Row rotates, ball 241 also can concomitant rotation when outer tube 23 is rotated simultaneously, it is to avoid because itself has an increased centralizer body 2
Horizontal friction force, lead to the too fast loss of centralizer.
Above-described specific embodiment, has been carried out to the purpose of the present invention, technical scheme and beneficial effect further
Describe in detail, be should be understood that the specific embodiment that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, all any modification, equivalent substitution and improvement within the spirit and principles in the present invention, done etc., all should comprise
Within protection scope of the present invention.
Claims (4)
1. a kind of ball bearing for sucker rod centralizer is it is characterised in that include core body（1）, described core body（1）Middle part is provided with centralizer body
（2）, described centralizer body（2）External diameter is more than sucker rod external diameter；
Described centralizer body（2）Including outer tube（23）, steel ball（26）And cover plate（28）；Described outer tube（23）Surface is provided with wiper block
（22）, described wiper block（22）On be provided with tumbler（24）, described centralizer body（2）Two ends are provided with annular retainer
（25）, described annular retainer（25）On be evenly arranged with and steel ball（26）The circular hole of coupling, annular retainer（25）It is arranged at
Outer tube（23）And core body（1）Between, it is fixed on core body（1）On outer wall, described steel ball（26）It is arranged on annular retainer（25）'s
In circular hole；Described cover plate（28）It is arranged on centralizer body（2）Two ends；
Described tumbler（24）Including ball（241）, groove（242）, auxiliary ball（243）, spacing cover plate（244）And ball guarantor
Hold frame（245）；Described groove（242）It is arranged on wiper block（22）On, described auxiliary ball（243）It is separately positioned on groove
（242）Bottom and four sides, by described ball retainer（245）Fixing, and with described ball（241）Contact, described ball
（241）It is arranged on groove（242）In, its top projects groove（242）, described spacing cover plate（244）On be provided with circular hole, circular hole
Diameter is less than ball（241）Diameter.
2. a kind of ball bearing for sucker rod centralizer according to claim 1 is it is characterised in that described wiper block（22）Axis
Parallel to described core body（1）Axis, wiper block（22）Along described outer tube（23）Circumferencial direction is uniformly distributed.
3. a kind of ball bearing for sucker rod centralizer according to claim 1 is it is characterised in that described tumbler（24）Along described
Outer tube（23）Circumferencial direction at least provided with 3 groups, described tumbler（24）Every group at least 1.
4. a kind of ball bearing for sucker rod centralizer according to claim 1 is it is characterised in that described outer tube（23）Two ends also
It is respectively arranged with limited impression（27）, described cover plate（28）By limited impression（27）Embedded centralizer body（2）The outer tube at two ends
（23）And core body（1）Between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611002279.2A CN106401500A (en) | 2016-11-15 | 2016-11-15 | Ball sucker rod centralizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611002279.2A CN106401500A (en) | 2016-11-15 | 2016-11-15 | Ball sucker rod centralizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106401500A true CN106401500A (en) | 2017-02-15 |
Family
ID=59230130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611002279.2A Withdrawn CN106401500A (en) | 2016-11-15 | 2016-11-15 | Ball sucker rod centralizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106401500A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107035323A (en) * | 2017-04-20 | 2017-08-11 | 成都亨通兆业精密机械有限公司 | A kind of natural gas based on many switching at runtime processes pumps normal state systems stabilisation |
| CN107100556A (en) * | 2017-04-20 | 2017-08-29 | 成都亨通兆业精密机械有限公司 | A kind of normal state stabilising arrangement of oil gas pumping system |
| CN109184589A (en) * | 2018-11-02 | 2019-01-11 | 大庆市天德忠石油科技有限公司 | A kind of combined type oil pumping rod centering device |
| CN109236201A (en) * | 2018-10-30 | 2019-01-18 | 中国石油天然气股份有限公司 | Centering guide |
| CN111594065A (en) * | 2020-06-10 | 2020-08-28 | 张雪蓉 | Composite sucker rod centering device for oil field |
-
2016
- 2016-11-15 CN CN201611002279.2A patent/CN106401500A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107035323A (en) * | 2017-04-20 | 2017-08-11 | 成都亨通兆业精密机械有限公司 | A kind of natural gas based on many switching at runtime processes pumps normal state systems stabilisation |
| CN107100556A (en) * | 2017-04-20 | 2017-08-29 | 成都亨通兆业精密机械有限公司 | A kind of normal state stabilising arrangement of oil gas pumping system |
| CN109236201A (en) * | 2018-10-30 | 2019-01-18 | 中国石油天然气股份有限公司 | Centering guide |
| CN109236201B (en) * | 2018-10-30 | 2020-05-08 | 中国石油天然气股份有限公司 | Centering guide |
| CN109184589A (en) * | 2018-11-02 | 2019-01-11 | 大庆市天德忠石油科技有限公司 | A kind of combined type oil pumping rod centering device |
| CN109184589B (en) * | 2018-11-02 | 2019-06-14 | 大庆市天德忠石油科技有限公司 | A kind of combined type oil pumping rod centering device |
| CN111594065A (en) * | 2020-06-10 | 2020-08-28 | 张雪蓉 | Composite sucker rod centering device for oil field |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170215 |
|
| WW01 | Invention patent application withdrawn after publication |