CN108612488A - A kind of automatic rotary centralizer of oil pipe - Google Patents
A kind of automatic rotary centralizer of oil pipe Download PDFInfo
- Publication number
- CN108612488A CN108612488A CN201611138548.8A CN201611138548A CN108612488A CN 108612488 A CN108612488 A CN 108612488A CN 201611138548 A CN201611138548 A CN 201611138548A CN 108612488 A CN108612488 A CN 108612488A
- Authority
- CN
- China
- Prior art keywords
- inner sleeve
- housing
- oil pipe
- lower housing
- automatic rotary
- 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
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 10
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 10
- -1 polytetrafluoroethylene Polymers 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims 1
- 239000003921 oil Substances 0.000 description 17
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 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
- E21B17/1078—Stabilisers or centralisers for casing, tubing or drill pipes
-
- 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
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 kind of automatic rotary centralizers of oil pipe, including righting rod, inner sleeve, blade, upper housing and lower housing, the righting rod outer cover is equipped with inner sleeve, the upper end of the inner sleeve is equipped with upper housing, lower end is equipped with lower housing, several blades being evenly arranged are equipped between upper housing and lower housing and inner sleeve, the blade is run through between housing and lower housing and inner sleeve.The technical purpose of the present invention is to provide a kind of more wear-resisting, more durable oil pipe automatic rotary centralizer.
Description
Technical field
The present invention relates to technical field of oil field equipment, more particularly to a kind of automatic rotary centralizer of oil pipe.
Background technology
Oil well is developed, in order to make beam hanger will not eccentric wear, need to use centralizer in oil well, can be because of sucker rod
Eccentric wear and the supporting positive cover of centralizer is squeezed on tubing wall, during long-term use, so that the eccentric wear of supporting positive cover makes
It obtains and grinds a groove on oil pipe, can also be broken sometimes because of axis pin can be oil pumping pump seizure, to pumping unit and oil pipe
It damages, to cannot be guaranteed the stability and benefit of operation.
Invention content
In view of the above problems, technical purpose of the invention is to provide a kind of more wear-resisting, more durable oil
Manage automatic rotary centralizer.
The invention is realized by the following technical scheme：
The automatic rotary centralizer of oil pipe of the present invention, including righting rod, inner sleeve, blade, upper housing and lower housing, the righting rod
Outer cover is equipped with inner sleeve, and the upper end of the inner sleeve is equipped with upper housing, lower end be equipped with lower housing, upper housing and lower housing and inner sleeve it
Between be equipped with several blades being evenly arranged, the blade runs through between housing and lower housing and inner sleeve.
The external cylindrical surface of the automatic rotary centralizer of oil pipe of the present invention, the upper housing and lower housing is equipped with groove, institute
It states and is equipped with lantern ring in groove, the material of the lantern ring is polytetrafluoroethylene (PTFE).
The automatic rotary centralizer of oil pipe of the present invention, the inner cylinder face of the inner sleeve are equipped with the ball for installing ball
Slot, the ball grooves are equipped with ball by retainer.
The automatic rotary centralizer of oil pipe of the present invention, the interior ball grooves being equipped with that put on are arranged along the axis of righting rod.
The automatic rotary centralizer of oil pipe of the present invention, the both ends of the inner sleeve are equipped with the limit for limiting inner sleeve position
Ring, the outer diameter of the spacing ring are less than the outer diameter of inner sleeve.
The automatic rotary centralizer of oil pipe of the present invention, upper housing and lower housing it is of same size, the width of lantern ring is upper outer
0.5~0.8 times of the width of set/lower housing.
The beneficial effects of the invention are as follows:
By equipped with the blade for running through the gap between upper housing and lower housing and inner sleeve, enable to pass through leaf in fluid
When piece, larger turning moment can be provided housing, so that housing or inner sleeve rotation, to avoid the formation of eccentric wear, and
And the ball being equipped with, enable to the rotation of inner sleeve more freely, frictional force smaller, by being set between upper housing and lower housing
There is exposed blade, enables to the part of oily night for flowing through blade to fill between upper housing and lower housing and oil pipe, form lubrication
Oily night, and the turning moment of blade formation is not interfered with substantially, and process processing and be more prone to.
Description of the drawings
Fig. 1 is the structure chart of wear-resisting rotary centralizer.
It is marked in figure：1 it is righting rod, 2 be inner sleeve, 3 be blade, 4 be upper housing, 5 be lower housing, 6 be lantern ring, 7 is guarantor
Hold frame, 8 for ball, 9 spacing rings.
Specific implementation mode
The present invention is described in detail below in conjunction with the accompanying drawings.
The automatic rotary centralizer of oil pipe as shown in Figure 1, including righting rod 1, inner sleeve 2, blade 3, upper housing 4 and lower housing
5,1 outer cover of the righting rod is equipped with inner sleeve 2, and the upper end of the inner sleeve 2 is equipped with upper housing 4, and lower end is equipped with lower housing 5, upper outer
Several blades 3 being evenly arranged are equipped between set 4 and lower housing 5 and inner sleeve 2, the blade 3 runs through housing 4 and lower housing
Between 5 and inner sleeve 2.
The external cylindrical surface of the upper housing 4 and lower housing 5 is equipped with groove, and lantern ring 6, the lantern ring are equipped in the groove
6 material be polytetrafluoroethylene (PTFE), by equipped with polytetrafluoroethylene (PTFE) lantern ring enable between upper housing and lower housing and oil pipe
Frictional force smaller, and polytetrafluoroethylene (PTFE) have it is wear-resisting, it is corrosion-resistant, enable to centralizer relatively reliable.
The inner cylinder face of the inner sleeve 2 is equipped with the ball grooves for installing ball, and the ball grooves are set by retainer 7
There is ball 8.The ball grooves that the inner sleeve 2 is equipped with are arranged along the axis of righting rod 1.Pass through the axis by ball grooves along righting rod
Setting, so that the processing to ball grooves is more convenient, processing cost is lower.
The both ends of the inner sleeve 2 are equipped with the spacing ring 9 for limiting inner sleeve position, and the outer diameter of the spacing ring 9 is less than interior
The outer diameter of set 2.Upper housing 4 and lower housing 5 it is of same size, the width of lantern ring 6 is the 0.5 of the width of 4/ time housing of upper housing 5
~0.8 times, preferably 0.7 times.Larger extruding force can be born by the lantern ring 6 equipped with setting width, to housing shape
At support.
By equipped with the blade for running through the gap between upper housing and lower housing and inner sleeve, enable to logical in fluid
When crossing blade, larger turning moment can be provided housing, so that housing or inner sleeve rotation, to avoid the formation of partially
Mill, and the ball being equipped with, enable to the rotation of inner sleeve more freely, frictional force smaller, by upper housing and lower housing
Between be equipped with exposed blade, the part of oily night for enabling to flow through blade is filled between upper housing and lower housing and oil pipe, shape
At lubricating oil night, and the turning moment of blade formation not being interfered with substantially, and processing processing and be more prone to, weight is lighter.
Claims (6)
1. a kind of automatic rotary centralizer of oil pipe, which is characterized in that including righting rod（1）, inner sleeve（2）, blade（3）, upper housing
（4）And lower housing（5）, the righting rod（1）Outer cover is equipped with inner sleeve（2）, the inner sleeve（2）Upper end be equipped with upper housing（4）,
Lower end is equipped with lower housing（5）, upper housing（4）And lower housing（5）With inner sleeve（2）Between be equipped with several blades being evenly arranged（3）,
The blade（3）Run through housing（4）And lower housing（5）With inner sleeve（2）Between.
2. the automatic rotary centralizer of oil pipe according to claim 1, which is characterized in that the upper housing（4）And lower housing
（5）External cylindrical surface be equipped with groove, lantern ring is equipped in the groove（6）, the lantern ring（6）Material be polytetrafluoroethylene (PTFE).
3. the automatic rotary centralizer of oil pipe according to claim 1, which is characterized in that the inner sleeve（2）Inner cylinder face
The ball grooves for installing ball are equipped with, the ball grooves pass through retainer（7）Equipped with ball（8）.
4. the automatic rotary centralizer of oil pipe according to claim 3, which is characterized in that the inner sleeve（2）The rolling being equipped with
Pearl slot is along righting rod（1）Axis setting.
5. the automatic rotary centralizer of oil pipe according to claim 3, which is characterized in that the inner sleeve（2）Both ends be equipped with
Spacing ring for limiting inner sleeve position（9）, the spacing ring（9）Outer diameter be less than inner sleeve（2）Outer diameter.
6. the automatic rotary centralizer of oil pipe according to claim 2, which is characterized in that upper housing（4）And lower housing（5）'s
It is of same size, lantern ring（6）Width be upper housing（4）/ lower housing（5）0.5~0.8 times of width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611138548.8A CN108612488A (en) | 2016-12-12 | 2016-12-12 | A kind of automatic rotary centralizer of oil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611138548.8A CN108612488A (en) | 2016-12-12 | 2016-12-12 | A kind of automatic rotary centralizer of oil pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108612488A true CN108612488A (en) | 2018-10-02 |
Family
ID=63643202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611138548.8A Pending CN108612488A (en) | 2016-12-12 | 2016-12-12 | A kind of automatic rotary centralizer of oil pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108612488A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111691832A (en) * | 2020-07-14 | 2020-09-22 | 中国石油集团渤海钻探工程有限公司 | Rotatable intelligent centralizer |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2127796A (en) * | 1937-11-17 | 1938-08-23 | Orvis C Willis | Bearing structure |
| US4245709A (en) * | 1979-04-27 | 1981-01-20 | Christensen, Inc. | Removable drill string stabilizers |
| SU1244277A1 (en) * | 1985-02-01 | 1986-07-15 | Гомельское Отделение Белорусского Научно-Исследовательского Геологоразведочного Института | Device for centering drilling tool |
| US20050092527A1 (en) * | 2003-10-29 | 2005-05-05 | Le Tuong T. | Vibration damper systems for drilling with casing |
| CN201437692U (en) * | 2009-06-19 | 2010-04-14 | 中国海洋石油总公司 | Riser pipe near-bit centralizer under simulation of injection method |
| CN201526284U (en) * | 2009-04-29 | 2010-07-14 | 西南石油大学 | Coal seam drilling torque reduction stabilizer |
| CN103615201A (en) * | 2013-11-30 | 2014-03-05 | 重庆九州探矿机械技术开发公司 | Centering device for drill rod in hole of engineering driller |
| CN103643903A (en) * | 2013-12-03 | 2014-03-19 | 中国石油天然气股份有限公司 | Internal and external centralizer for oil field well repairing |
| CN203499586U (en) * | 2013-09-26 | 2014-03-26 | 王刚 | Multi-edge blunt arc double oblique jet flow stabilizer |
| WO2014167315A2 (en) * | 2013-04-10 | 2014-10-16 | Field Marshall Oil And Gas Technologies Limited | Apparatus and method for cleaning a well bore tubular |
| CN204040943U (en) * | 2014-08-29 | 2014-12-24 | 江苏省地矿地热能有限公司 | There is the stile surveying inclined function |
| WO2015104347A1 (en) * | 2014-01-09 | 2015-07-16 | Tercel Ip Limited | Downhole assembly and method for reducing drag and friction on a tubular run in a wellbore |
| CN204571875U (en) * | 2015-04-16 | 2015-08-19 | 赵辰 | Large through-current capacity oil pumping rod centering device |
| CN205778580U (en) * | 2016-06-24 | 2016-12-07 | 中国石油天然气股份有限公司 | Sucker rod |
-
2016
- 2016-12-12 CN CN201611138548.8A patent/CN108612488A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2127796A (en) * | 1937-11-17 | 1938-08-23 | Orvis C Willis | Bearing structure |
| US4245709A (en) * | 1979-04-27 | 1981-01-20 | Christensen, Inc. | Removable drill string stabilizers |
| SU1244277A1 (en) * | 1985-02-01 | 1986-07-15 | Гомельское Отделение Белорусского Научно-Исследовательского Геологоразведочного Института | Device for centering drilling tool |
| US20050092527A1 (en) * | 2003-10-29 | 2005-05-05 | Le Tuong T. | Vibration damper systems for drilling with casing |
| CN201526284U (en) * | 2009-04-29 | 2010-07-14 | 西南石油大学 | Coal seam drilling torque reduction stabilizer |
| CN201437692U (en) * | 2009-06-19 | 2010-04-14 | 中国海洋石油总公司 | Riser pipe near-bit centralizer under simulation of injection method |
| WO2014167315A2 (en) * | 2013-04-10 | 2014-10-16 | Field Marshall Oil And Gas Technologies Limited | Apparatus and method for cleaning a well bore tubular |
| CN203499586U (en) * | 2013-09-26 | 2014-03-26 | 王刚 | Multi-edge blunt arc double oblique jet flow stabilizer |
| CN103615201A (en) * | 2013-11-30 | 2014-03-05 | 重庆九州探矿机械技术开发公司 | Centering device for drill rod in hole of engineering driller |
| CN103643903A (en) * | 2013-12-03 | 2014-03-19 | 中国石油天然气股份有限公司 | Internal and external centralizer for oil field well repairing |
| WO2015104347A1 (en) * | 2014-01-09 | 2015-07-16 | Tercel Ip Limited | Downhole assembly and method for reducing drag and friction on a tubular run in a wellbore |
| CN204040943U (en) * | 2014-08-29 | 2014-12-24 | 江苏省地矿地热能有限公司 | There is the stile surveying inclined function |
| CN204571875U (en) * | 2015-04-16 | 2015-08-19 | 赵辰 | Large through-current capacity oil pumping rod centering device |
| CN205778580U (en) * | 2016-06-24 | 2016-12-07 | 中国石油天然气股份有限公司 | Sucker rod |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111691832A (en) * | 2020-07-14 | 2020-09-22 | 中国石油集团渤海钻探工程有限公司 | Rotatable intelligent centralizer |
| CN111691832B (en) * | 2020-07-14 | 2022-05-24 | 中国石油集团渤海钻探工程有限公司 | Rotatable intelligent centralizer |
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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 |