CN108612492A - A kind of reducing oil pipe rotary centralizer - Google Patents
A kind of reducing oil pipe rotary centralizer Download PDFInfo
- Publication number
- CN108612492A CN108612492A CN201611139247.7A CN201611139247A CN108612492A CN 108612492 A CN108612492 A CN 108612492A CN 201611139247 A CN201611139247 A CN 201611139247A CN 108612492 A CN108612492 A CN 108612492A
- Authority
- CN
- China
- Prior art keywords
- lantern ring
- oil pipe
- central tube
- centrilizing
- tile
- 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
- E21B17/1057—Centralising devices with rollers or with a relatively rotating sleeve
Abstract
The invention discloses a kind of reducing oil pipe rotary centralizers, it includes central tube, and supporting positive cover is arranged on the central tube, and the supporting positive cover can be rotated around central tube；The supporting positive cover includes lantern ring and several centrilizing tiles；The lantern ring is set on central tube and can be rotated around central tube；The centrilizing tile is arranged by the way that spring is equally spaced on the lateral wall of lantern ring, wherein partition board is provided between adjacent two centrilizing tile, the partition board is fixedly connected on lantern ring.The centralizer can adapt to the variation of oil pipe bore, can carry out righting to sucker rod.
Description
Technical field
The present invention relates to oil extraction in oil field tools, refer in particular to a kind of reducing oil pipe 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 normally produces
One of an important factor for.Rod tube is caused to wear to prevent sucker rod to be in direct contact friction with tubing wall when moving up and down, often
Centralizer is set on sucker rod.
And the supporting positive cover of existing centralizer is only used in the oil pipe of fixed bore, if oil pipe bore changes,
Centralizer cannot play centralizing function to sucker rod, and oil pipe bore becomes larger, and distance of the supporting positive cover away from tube inner wall of centralizer becomes larger,
Supporting positive cover can not be contacted with tube inner wall, thus meeting sucker rod waves in oil pipe, and oil pipe bore becomes smaller, and centralizer can not be put
Enter in oil pipe, then can not play centralizing function to sucker rod.
Invention content
It is an object of the invention to：In view of the above problems, a kind of reducing oil pipe rotary centralizer is provided, this is helped
Positive device can adapt to the variation of oil pipe bore, can carry out righting to sucker rod.
The technical solution adopted by the present invention is as follows：
A kind of reducing oil pipe rotary centralizer, it includes central tube, and supporting positive cover, the supporting positive cover are arranged on the central tube
It can be rotated around central tube；The supporting positive cover includes lantern ring and several centrilizing tiles；The lantern ring is set on central tube and can be in
Heart pipe rotates；The centrilizing tile is arranged by the way that spring is equally spaced on the lateral wall of lantern ring, wherein between adjacent two centrilizing tile
It is provided with partition board, the partition board is fixedly connected on lantern ring.
Further, the arcuate surface of the centrilizing tile is contacted with tube inner wall, and inner concave is connected by several springs and lantern ring
It connects；The left and right ends face of the centrilizing tile and the baffle contacts being arranged on lantern ring.
Further, the number of the centrilizing tile is 3~4.
Further, centrilizing tile upper end edge and lower end edge are both provided with arc angling.
Further, the lantern ring is set in by rolling bearing on central tube.
Further, spherical roller is installed on the arcuate surface of the centrilizing tile.
In conclusion by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
The centralizer of the present invention can adapt to the variation of oil pipe bore, make sucker rod righting always in the oil pipe of different bores,
Spherical roller is set on centrilizing tile simultaneously, the axial friction that supporting positive cover is subject to when sucker rod moves up and down can be reduced, is improved
Supporting positive cover service life.Supporting positive cover can be rotated around central tube, supporting positive cover can be made uniform by mill by flour milling, and then improve righting
Cover service life.
Description of the drawings
Fig. 1 is the structure chart of the present invention.
Specific implementation mode
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, 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 reducing oil pipe rotary centralizer, it includes central tube 1, and supporting positive cover is arranged on the central tube 1, described
Supporting positive cover can be rotated around central tube 1；The supporting positive cover includes lantern ring 5 and several centrilizing tiles 7；The lantern ring 5 is set in central tube 1
It can rotate above and around central tube 1；The centrilizing tile 7 is arranged by the way that spring 3 is equally spaced on the lateral wall of lantern ring 5, wherein phase
It is provided with partition board 4 between adjacent two centrilizing tiles 7, the partition board 4 is fixedly connected on lantern ring 5.
The arcuate surface of the centrilizing tile 7 is contacted with tube inner wall, and inner concave is connect by several springs 3 with lantern ring 5；It is described
The left and right ends face of centrilizing tile 7 is contacted with the partition board 4 being arranged on lantern ring 5.
The number of the centrilizing tile 7 is 3~4.The number of centrilizing tile 7 uses 3 in the present embodiment.
7 upper end edge of the centrilizing tile and lower end edge are both provided with arc angling.
The lantern ring 5 is set in by rolling bearing 2 on central tube 1.
Spherical roller 6 is installed on the arcuate surface of the centrilizing tile 7.
Working principle of the present invention is as follows：Centrilizing tile 7 is arranged by spring 3 on lantern ring 5, is acted in the elastic force of spring 3
Under, 7 arcuate surface of centrilizing tile can be contacted with tube inner wall always, make sucker rod stabilizing, wherein spring 3 that must use coefficient of elasticity
Strong spring 3 just can guarantee that lantern ring 5 carrys out centering sucker rod with sufficiently strong elastic force, in the case of avoiding weak vibrations, spring
3 deformations, and cannot be by sucker rod stabilizing.7 upper end edge of centrilizing tile and lower end edge are both provided with arc angling, be for the ease of
Centralizer enters in the oil pipe of different bores.Supporting positive cover can be rotated around central tube 1, and the surface abrasion of supporting positive cover can be made equal
It is even, improve the friction durability of supporting positive cover.Meanwhile stating and spherical roller 6 is installed on the arcuate surface of centrilizing tile 7, which can subtract
When small sucker rod moves up and down, the axial friction contacted between supporting positive cover and oil pipe further increases the service life of supporting positive cover.
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 etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (6)
1. a kind of reducing oil pipe rotary centralizer, it is characterised in that：It includes central tube（1）, the central tube（1）On be arranged
There are supporting positive cover, the supporting positive cover can be around central tube（1）Rotation；The supporting positive cover includes lantern ring（5）With several centrilizing tiles（7）；Institute
State lantern ring（5）It is set in central tube（1）It above and can be around central tube（1）Rotation；The centrilizing tile（7）Pass through spring（3）At equal intervals
Setting in lantern ring（5）Lateral wall on, wherein adjacent two centrilizing tile（7）Between be provided with partition board（4）, the partition board（4）Gu
Surely it is connected to lantern ring（5）On.
2. reducing oil pipe rotary centralizer according to claim 1, it is characterised in that：The centrilizing tile（7）Evagination
Face is contacted with tube inner wall, and inner concave passes through several springs（3）With lantern ring（5）Connection；The centrilizing tile（7）Left and right ends face
With setting in lantern ring（5）On partition board（4）Contact.
3. reducing oil pipe rotary centralizer according to claim 2, it is characterised in that：The centrilizing tile（7）Number
It is 3~4.
4. reducing oil pipe rotary centralizer according to claim 3, it is characterised in that：The centrilizing tile（7）Upper end edge
Edge and lower end edge are both provided with arc angling.
5. reducing oil pipe rotary centralizer according to claim 4, it is characterised in that：The lantern ring（5）Pass through rolling
Bearing（2）It is set in central tube（1）On.
6. reducing oil pipe rotary centralizer according to claim 5, it is characterised in that：The centrilizing tile（7）Evagination
Spherical roller is installed on face（6）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611139247.7A CN108612492A (en) | 2016-12-12 | 2016-12-12 | A kind of reducing oil pipe rotary centralizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611139247.7A CN108612492A (en) | 2016-12-12 | 2016-12-12 | A kind of reducing oil pipe rotary centralizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108612492A true CN108612492A (en) | 2018-10-02 |
Family
ID=63656895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611139247.7A Pending CN108612492A (en) | 2016-12-12 | 2016-12-12 | A kind of reducing oil pipe rotary centralizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108612492A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111852383A (en) * | 2020-07-21 | 2020-10-30 | 肖云东 | Oil field downhole tool packer |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1055979A (en) * | 1991-06-26 | 1991-11-06 | 石油大学 | Diameter-regulating centralizing device |
| CN2110705U (en) * | 1991-07-27 | 1992-07-22 | 广东省鹤山县建筑设计院 | Device for centralising and vibration-obsorption of drill rod |
| CN2150329Y (en) * | 1993-02-01 | 1993-12-22 | 朱鸿亮 | Wax-scraping righting device for oil-pumping well |
| US5465759A (en) * | 1994-03-22 | 1995-11-14 | Hydril Company | Variable diameter pipe protector |
| GB2410510A (en) * | 2004-02-02 | 2005-08-03 | Toolbox Drilling Solutions Ltd | Adjustable downhole tool |
| 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 |
| CN202731774U (en) * | 2012-06-15 | 2013-02-13 | 宋立莹 | Sucker rod positioning centering device |
| CN104131789A (en) * | 2014-07-07 | 2014-11-05 | 中国石油天然气股份有限公司 | Shaft sleeve type inside-and-outside centralizer |
| CN105781443A (en) * | 2016-04-29 | 2016-07-20 | 中国石油大学(北京) | Variable-diameter centering device |
| CN205621359U (en) * | 2016-04-16 | 2016-10-05 | 南安市龙潭农业综合开发有限公司 | Trees with formula tree tablets that are suitable for more |
-
2016
- 2016-12-12 CN CN201611139247.7A patent/CN108612492A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1055979A (en) * | 1991-06-26 | 1991-11-06 | 石油大学 | Diameter-regulating centralizing device |
| CN2110705U (en) * | 1991-07-27 | 1992-07-22 | 广东省鹤山县建筑设计院 | Device for centralising and vibration-obsorption of drill rod |
| CN2150329Y (en) * | 1993-02-01 | 1993-12-22 | 朱鸿亮 | Wax-scraping righting device for oil-pumping well |
| US5465759A (en) * | 1994-03-22 | 1995-11-14 | Hydril Company | Variable diameter pipe protector |
| GB2410510A (en) * | 2004-02-02 | 2005-08-03 | Toolbox Drilling Solutions Ltd | Adjustable downhole tool |
| 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 |
| CN202731774U (en) * | 2012-06-15 | 2013-02-13 | 宋立莹 | Sucker rod positioning centering device |
| CN104131789A (en) * | 2014-07-07 | 2014-11-05 | 中国石油天然气股份有限公司 | Shaft sleeve type inside-and-outside centralizer |
| CN205621359U (en) * | 2016-04-16 | 2016-10-05 | 南安市龙潭农业综合开发有限公司 | Trees with formula tree tablets that are suitable for more |
| CN105781443A (en) * | 2016-04-29 | 2016-07-20 | 中国石油大学(北京) | Variable-diameter centering device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111852383A (en) * | 2020-07-21 | 2020-10-30 | 肖云东 | Oil field downhole tool packer |
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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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181002 |