CN108222855A - A kind of reducing sucker rod rotary centralizer - Google Patents
A kind of reducing sucker rod rotary centralizer Download PDFInfo
- Publication number
- CN108222855A CN108222855A CN201611138535.0A CN201611138535A CN108222855A CN 108222855 A CN108222855 A CN 108222855A CN 201611138535 A CN201611138535 A CN 201611138535A CN 108222855 A CN108222855 A CN 108222855A
- Authority
- CN
- China
- Prior art keywords
- sucker rod
- reducing
- outer tube
- grip block
- inner sleeve
- 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.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
Abstract
The invention discloses a kind of reducing sucker rod rotary centralizers, it includes the reducing casing tube being sleeved on sucker rod and the supporting positive cover being sleeved on reducing casing tube；The reducing casing tube includes inner sleeve, outer tube and several grip blocks, and the inner sleeve is fixedly connected between outer tube by several connecting plates, and the grip block is arranged in inner sleeve, and the top and bottom of each grip block are connected to by adjusting bolt on inner sleeve；Reducing casing tube is set on sucker rod by the grip block for clamping sucker rod；The supporting positive cover is set on outer tube, can be rotated around outer tube.The centralizer can adapt to the bore variation of sucker rod, can carry out righting to the sucker rod of different bores.
Description
Technical field
The present invention relates to oil extraction in oil field tools, refer in particular to a kind of reducing sucker rod rotary centralizer.
Background technology
During oil extraction in oil field, sucker rod has become each oil field influence pumpingh well with tube inner wall generation eccentric wear and has normally produced
One of an important factor for.Rod tube is caused to wear for sucker rod is prevented to be in direct contact friction with tubing wall when moving up and down, often
Centralizer is set on sucker rod.
Existing centralizer is all that supporting positive cover is set on the central tube of fixed size, and central tube is allowed to connect with sucker rod
It connects, and then righting is carried out to sucker rod.Since central tube size is fixed, when sucker rod reducing, original fixed size
Centralizer just cannot reuse, it is necessary to which purchase is replaced again.
Invention content
It is an object of the invention to：In view of the above problems, a kind of reducing sucker rod rotary centralizer is provided, it should
Centralizer can adapt to the bore variation of sucker rod, can carry out righting to the sucker rod of different bores.
The technical solution adopted by the present invention is as follows：
A kind of reducing sucker rod rotary centralizer, it includes the reducing casing tube being sleeved on sucker rod and is sleeved on reducing casing tube
Supporting positive cover；The reducing casing tube includes inner sleeve, outer tube and several grip blocks, by several between the inner sleeve and outer tube
Connecting plate is fixedly connected, and the grip block is arranged in inner sleeve, and the top and bottom of each grip block are connected by adjusting bolt
It is connected on inner sleeve；Reducing casing tube is set on sucker rod by the grip block for clamping sucker rod；The supporting positive cover is arranged
On outer tube, it can be rotated around outer tube.
Further, the connecting plate between inner sleeve and outer tube is set at equal intervals, and adjusting bolt is arranged between connecting plate
Between, and two adjusting bolt intervals on same circumference are equal.
Further, the grip block camber tiles, inner concave are contacted with sucker rod, the adjusting bolt and arc
The convex surface of tiles is fixedly connected.
Further, it is provided with non-slip texture on the inner concave of the grip block arc tiles.
Further, the number of the grip block is 3~4.
Further, external spiral groove is provided on the outer tube, the supporting positive cover is internally provided with inner spiral groove, this is interior
Helicla flute cooperates with the external spiral groove on outer tube, and rotation direction is identical.
In conclusion by adopting the above-described technical solution, the beneficial effects of the invention are as follows：The grip block of the present invention passes through
Bolt adjusts aperture, therefore grip block can clamp the sucker rod of arbitrary bore, convenient for the centralizer for any bore
On sucker rod, the cost for replacing and buying multiple fixed bore centralizers, the configuration of the present invention is simple, convenient for manufacturing and giving birth to are saved
Into.
Description of the drawings
Fig. 1 is the structure chart of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings, the present invention is described in detail.
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
A kind of centralizer of reducing sucker rod 1, it includes the reducing casing tube being sleeved on sucker rod 1 and is sleeved on reducing casing tube
Supporting positive cover 2；The reducing casing tube includes inner sleeve 5, outer tube 6 and several grip blocks 3, between the inner sleeve 5 and outer tube 6
It is fixedly connected by several connecting plates 7, the grip block 3 is arranged in inner sleeve, and the top and bottom of each grip block 3 pass through
Adjusting bolt 4 is connected on inner sleeve 5；Reducing casing tube is set in sucker rod 1 by the grip block 3 for clamping sucker rod 1
On；The supporting positive cover 2 is set on outer tube 6, can be rotated around outer tube 6.
Connecting plate 7 between inner sleeve 5 and outer tube 6 is set at equal intervals, adjusting bolt 4 be arranged on connecting plate 7 interval it
Between, and two adjusting bolts 4 on same circumference be spaced it is equal.
The 3 camber tiles of grip block, inner concave are contacted with sucker rod 1, the adjusting bolt 4 and arc tiles
Convex surface is fixedly connected.
Non-slip texture is provided on the inner concave of the 3 arc tiles of grip block.
The number of the grip block 3 is 3~4.In the present embodiment, the number of grip block is 4.
External spiral groove is provided on the outer tube 6, the supporting positive cover 2 is internally provided with inner spiral groove, the inner spiral groove
It cooperates with the external spiral groove on outer tube 6, and rotation direction is identical.
The aperture of grip block is adjusted by adjusting bolt 4, grip block 3 is enable to clamp the sucker rod 1 of different bores.For
It avoids having skidded between grip block 3 and sucker rod 1, therefore non-slip texture is provided on grip block 3.Due to inner spiral groove and
External spiral groove rotation direction is identical, and supporting positive cover 2 can rotate on outer tube 6, and supporting positive cover 2 rotates, and can grind the surface of supporting positive cover 2
Damage is uniformly distributed, and improves the friction durability of supporting positive cover 2.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of reducing sucker rod rotary centralizer, it is characterised in that：It includes being sleeved on sucker rod（1）On reducing casing tube and
The supporting positive cover being sleeved on reducing casing tube（2）；The reducing casing tube includes inner sleeve（5）, outer tube（6）With several grip blocks（3）,
The inner sleeve（5）And outer tube（6）Between pass through several connecting plates（7）It is fixedly connected, the grip block（3）It is arranged on inner sleeve
（5）It is interior, each grip block（3）Top and bottom pass through adjusting bolt（4）It is connected to inner sleeve（5）On；The grip block（3）
For clamping sucker rod（1）, reducing casing tube is set in sucker rod（1）On；The supporting positive cover（2）It is set in outer tube（6）On,
It can be around outer tube（6）Rotation.
2. reducing sucker rod rotary centralizer according to claim 1, it is characterised in that：Inner sleeve（5）And outer tube
（6）Between connecting plate（7）It sets at equal intervals, adjusting bolt（4）It is arranged on connecting plate（7）Interval between, and on same circumference
Two adjusting bolts（4）It is spaced equal.
3. reducing sucker rod rotary centralizer according to claim 2, it is characterised in that：The grip block（3）Into arc
Shape tiles, inner concave and sucker rod（1）Contact, the adjusting bolt（4）It is fixedly connected with the convex surface of arc tiles.
4. reducing sucker rod rotary centralizer according to claim 3, it is characterised in that：The grip block（3）Arc
Non-slip texture is provided on the inner concave of tiles.
5. reducing sucker rod rotary centralizer according to claim 4, it is characterised in that：The grip block（3）
Number is 3~4.
6. reducing sucker rod rotary centralizer according to claim 5, it is characterised in that：The outer tube（6）On set
It is equipped with external spiral groove, the supporting positive cover（2）Inner spiral groove is internally provided with, the inner spiral groove and outer tube（6）On external spiral
Slot cooperates, and rotation direction is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611138535.0A CN108222855A (en) | 2016-12-12 | 2016-12-12 | A kind of reducing sucker rod rotary centralizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611138535.0A CN108222855A (en) | 2016-12-12 | 2016-12-12 | A kind of reducing sucker rod rotary centralizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108222855A true CN108222855A (en) | 2018-06-29 |
Family
ID=62638596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611138535.0A Pending CN108222855A (en) | 2016-12-12 | 2016-12-12 | A kind of reducing sucker rod rotary centralizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108222855A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667552A (en) * | 2018-12-29 | 2019-04-23 | 武汉固德超前高新科技研发有限公司 | A kind of Novel centralizer of borehole logging |
| CN110159207A (en) * | 2019-06-13 | 2019-08-23 | 中铁隧道集团一处有限公司 | A kind of drilling equipment for ultra-deep horizontal drilling of constructing |
| CN113250628A (en) * | 2021-07-16 | 2021-08-13 | 山东辛丁技术有限公司 | Hydraulic casing centralizer for oil exploitation |
| CN113700442A (en) * | 2021-09-06 | 2021-11-26 | 常熟市石油固井工具有限公司 | Sticking method of sticking type polyester centralizer |
| CN117823060A (en) * | 2024-03-05 | 2024-04-05 | 河北上善石油机械有限公司 | Rigid sleeve centralizer with limiting mechanism |
| CN117823060B (en) * | 2024-03-05 | 2024-04-30 | 河北上善石油机械有限公司 | Rigid sleeve centralizer with limiting mechanism |
Citations (8)
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|---|---|---|---|---|
| US6367556B1 (en) * | 2000-05-05 | 2002-04-09 | Curt A. Moore | Multiple configuration centralizer device and method for using same |
| CN201206440Y (en) * | 2008-04-25 | 2009-03-11 | 关士元 | Rolling anti-jumping centralizer for screw pump |
| CN101761317A (en) * | 2010-01-19 | 2010-06-30 | 中国地质大学（武汉） | Rock sample core taking fixture |
| CN201593384U (en) * | 2009-12-24 | 2010-09-29 | 山东九环石油机械有限公司 | Lining tile direct-injection-type sucker rod stopping and centralizing device |
| CN201714318U (en) * | 2010-05-05 | 2011-01-19 | 齐金龙 | Eccentric wear prevention rotary type centralizer for pumping rod and oil pipe of screw pump in oilfield |
| CN202140041U (en) * | 2011-07-21 | 2012-02-08 | 大庆井泰石油工程技术股份有限公司 | Sucker rod centering device |
| CN103982754A (en) * | 2014-05-21 | 2014-08-13 | 西安航天动力机械厂 | X-ray machine positioning device |
| CN204609823U (en) * | 2015-05-19 | 2015-09-02 | 克拉玛依市轩辕石油科技有限公司 | Adjustable auto-strengthening piston rod sealer for pumping oil |
-
2016
- 2016-12-12 CN CN201611138535.0A patent/CN108222855A/en active Pending
Patent Citations (8)
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|---|---|---|---|---|
| US6367556B1 (en) * | 2000-05-05 | 2002-04-09 | Curt A. Moore | Multiple configuration centralizer device and method for using same |
| CN201206440Y (en) * | 2008-04-25 | 2009-03-11 | 关士元 | Rolling anti-jumping centralizer for screw pump |
| CN201593384U (en) * | 2009-12-24 | 2010-09-29 | 山东九环石油机械有限公司 | Lining tile direct-injection-type sucker rod stopping and centralizing device |
| CN101761317A (en) * | 2010-01-19 | 2010-06-30 | 中国地质大学（武汉） | Rock sample core taking fixture |
| CN201714318U (en) * | 2010-05-05 | 2011-01-19 | 齐金龙 | Eccentric wear prevention rotary type centralizer for pumping rod and oil pipe of screw pump in oilfield |
| CN202140041U (en) * | 2011-07-21 | 2012-02-08 | 大庆井泰石油工程技术股份有限公司 | Sucker rod centering device |
| CN103982754A (en) * | 2014-05-21 | 2014-08-13 | 西安航天动力机械厂 | X-ray machine positioning device |
| CN204609823U (en) * | 2015-05-19 | 2015-09-02 | 克拉玛依市轩辕石油科技有限公司 | Adjustable auto-strengthening piston rod sealer for pumping oil |
Non-Patent Citations (2)
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| 任建喜等: "《高等学校土木工程本科指导性专业规范配套教材岩石力学》", 30 June 2013, 中国矿业大学出版社 * |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667552A (en) * | 2018-12-29 | 2019-04-23 | 武汉固德超前高新科技研发有限公司 | A kind of Novel centralizer of borehole logging |
| CN110159207A (en) * | 2019-06-13 | 2019-08-23 | 中铁隧道集团一处有限公司 | A kind of drilling equipment for ultra-deep horizontal drilling of constructing |
| CN113250628A (en) * | 2021-07-16 | 2021-08-13 | 山东辛丁技术有限公司 | Hydraulic casing centralizer for oil exploitation |
| CN113250628B (en) * | 2021-07-16 | 2021-09-10 | 山东辛丁技术有限公司 | Hydraulic casing centralizer for oil exploitation |
| CN113700442A (en) * | 2021-09-06 | 2021-11-26 | 常熟市石油固井工具有限公司 | Sticking method of sticking type polyester centralizer |
| CN117823060A (en) * | 2024-03-05 | 2024-04-05 | 河北上善石油机械有限公司 | Rigid sleeve centralizer with limiting mechanism |
| CN117823060B (en) * | 2024-03-05 | 2024-04-30 | 河北上善石油机械有限公司 | Rigid sleeve centralizer with limiting mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180629 |
|
| RJ01 | Rejection of invention patent application after publication |