CN204266944U - A kind of ceramic materials oil pumping rod centering device - Google Patents
A kind of ceramic materials oil pumping rod centering device Download PDFInfo
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- CN204266944U CN204266944U CN201420467708.3U CN201420467708U CN204266944U CN 204266944 U CN204266944 U CN 204266944U CN 201420467708 U CN201420467708 U CN 201420467708U CN 204266944 U CN204266944 U CN 204266944U
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- ceramic materials
- wiper block
- rod
- centering device
- metallic core
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Abstract
The utility model relates to sucker rod stabilizer technical field in field produces, is a kind of ceramic materials oil pumping rod centering device.This ceramic materials oil pumping rod centering device is primarily of metallic core, ceramic materials wiper block, rod collar three part composition.Metallic core, realizes the connection of centralizer and sucker rod roofbolt; Ceramic materials wiper block, its external diameter is comparatively large, and having guiding gutter, realize the effect of righting, paraffin cutting, is the key component of centralizer; Ceramic materials oil pumping rod centering device has resistance to elevated temperatures, serviceability temperature can be 450 DEG C, has the self lubricity of ceramic materials and abrasion resistance, has hydrolytic resistance, and in high-temperature steam and hot water, long-term immersion still can keep the performances such as good machinery.The utility model has the advantages that: high temperature resistant, Long-Time Service temperature is 450 DEG C.Intensity is large, non-friable, and anti-fight is clashed into, corrosion-resistant.Frictional force is little, and the wiper block life-span is very long, is more than 100 times of common nylon centralizer.And ceramic materials is shaped through high temperature sintering, abnormal pliable and tough, anti-fight, shock, indeformable, corrosion-resistant, wear-resistant.
Description
Technical field
The utility model relates to sucker rod stabilizer technical field in field produces, is a kind of ceramic materials oil pumping rod centering device.
Background technology
Oil pumping rod centering device is a kind of instrument often used in field produces; it bends in the well of (inclination) for the well such as inclined shaft, horizontal well; rod string righting is occupy on the axis of well; can prevent R a T (sleeve pipe) from occurring hard to hard friction; protection oil pipe and sucker rod, extend manufacture cycle.The use of oil pumping rod centering device widely, can be used in paraffin-troubled well and use as paraffin scraper, also can be used in high corrosion well, prevents from rubbing and corroding the damage accelerating R a T.
Having in rod recovering system, sucker rod transmits the instrument of ground oil pumper power to downhole pump, its longevity of service, frequency be high, be subject to fluctuating load impact, to be sometimes full of Korrosionsmedium, sometimes medium temperature very high, some is for inclined shaft or horizontal well, working reliably and with long-term of sucker rod can be met, there is certain paraffin cutting effect, be applicable to the highly corrosive oil wells such as heavy crude heat extraction horizontal well, deviated wells, High water cut, high salinity, tertiary oil recovery.
Summary of the invention
The utility model provides a kind of ceramic materials oil pumping rod centering device, overcome the deficiency of above-mentioned prior art, effectively meet working reliably and with long-term of sucker rod, and there is certain paraffin cutting effect, be suitable for the highly corrosive oil wells such as heavy crude heat extraction horizontal well, deviated wells, High water cut, high salinity, tertiary oil recovery.
The utility model has the advantages that: ceramic materials oil pumping rod centering device is high temperature resistant, Long-Time Service temperature is 450 DEG C.Intensity is large, non-friable, and anti-fight is clashed into, corrosion-resistant.Frictional force is little, and the wiper block life-span is very long, is more than 100 times of common nylon centralizer.Have self lubricity and the abrasion resistance of ceramic materials, have hydrolytic resistance, in high-temperature steam and hot water, long-term immersion still can keep the performances such as good machinery.
The technical solution of the utility model is realized by following measures:
A kind of ceramic materials oil pumping rod centering device, comprises metallic core, wiper block, crossover sub, rod collar composition.Metallic core connecting with pumping rod box cupling and rod string; Comparatively large by external diameter, have the ceramic materials wiper block of guiding gutter to be enclosed within metallic core, rod collar connects.
External diameter is comparatively large, has the ceramic materials wiper block of guiding gutter to be the key position of centralizer, realizes righting, paraffin cutting effect.
Ceramic materials oil pumping rod centering device, makes with high-temperature ceramic materials, reduces frictional resistance.
Ceramic materials oil pumping rod centering device, metallic core external diameter is large, more smaller than pipe aperture, belongs to opportunistic and contacts, sliding friction, sucker rod can be helped to occupy in the middle of oil pipe with tube inner wall.
Ceramic materials oil pumping rod centering device, wiper block has guiding gutter, can increase the fluid course between oil pipe and sucker rod.Guiding gutter and wiper block realize rounding off, can prevent sintering stress from concentrating and produce, increase the area of passage of section and take wax ability.
Ceramic materials oil pumping rod centering device, ceramic materials wiper block external surface is coated with glaze, ensures the smooth abrasion-proof of wiper block.
Ceramic materials oil pumping rod centering device, wiper block uses the pad of exotic material up and down, prevents the upper and lower play of wiper block.
The technical solution of the utility model is realized by following measures:
The utility model is made up of metallic core 2, pad 3, wiper block 4, rod collar 7.Metallic core 2 and upper pin thread 1 connecting with pumping rod, rod collar 7 connects another root sucker rod below, and lower pin thread 6 is connected with rod collar 7, by that analogy, the part of composition rod string.Metallic core 2 is processed by high strength alloy steel, bears the load of pump.Wiper block 4 is enclosed within metallic core 2, wiper block about 4 shimming 3, and metallic core 2 limits wiper block 4 and moves, and avoids the impact to wiper block.Wiper block 4 external diameter is larger than the external diameter of rod collar 7 and metallic core 2, and more smaller than pipe aperture, belonging to chance with tube inner wall and contact, is sliding friction, and object helps sucker rod to occupy in the middle of oil pipe.Wiper block 4 has guiding gutter 5, and increase the fluid course between oil pipe and sucker rod, guiding gutter and wiper block realize rounding off.This wiper block 4 is ceramic materialss of special formulation, is shaped by high temperature sintering, external surface oiling.This wiper block 4 is by the ceramic high temperature thermal sintering of special formulation, abnormal pliable and tough, anti-fight, shock, indeformable, corrosion-resistant, wear-resistant.
Here be to the further optimization of above-mentioned use new technique scheme or/improve:
The motion of metallic core restriction wiper block, can avoid the impact to wiper block.
Metallic core is processed by high strength alloy steel, can bear the load of pump.
Wiper block external diameter is larger than the external diameter of rod collar and metallic core, and more smaller than pipe aperture, belonging to opportunistic with tube inner wall and contact, is sliding friction, and object helps sucker rod to occupy in the middle of oil pipe
Wiper block by ceramic materials make, be shaped by high temperature sintering, external surface oiling.Pliable and tough, anti-fight, shock, indeformable, corrosion-resistant, abrasion resistance properties is good.
The utility model has the advantages that: the thick beam centralizer of ceramic materials is high temperature resistant, Long-Time Service temperature is 450 DEG C.Intensity is large, non-friable, and anti-fight is clashed into, corrosion-resistant.Frictional force is little, and the wiper block life-span is very long, is more than 100 times of common nylon centralizer.Have self lubricity and the abrasion resistance of ceramic materials, have hydrolytic resistance, in high-temperature steam and hot water, long-term immersion still can keep the performances such as good machinery.
Accompanying drawing explanation
Accompanying drawing 1 looks sectional structure schematic diagram for the utility model most preferred embodiment master.
Coding in accompanying drawing 1 is respectively: 1 is upper pin thread, and 2 is metallic core, and 3 is pad, and 4 is wiper block, and 5 is guiding gutter, and 6 is lower pin thread, and 7 is rod collar, and 8 is box.
Detailed description of the invention
The utility model by the restriction of following embodiment, can not determine detailed description of the invention with actual conditions more than the technical solution of the utility model.
In the utility model, for convenience of description, the description of the relative position relation of each parts is all be described according to the Butut mode of manual, as: the position relationship of upper and lower, left and right etc. is determined according to the Butut mode of Figure of description.
Below in conjunction with example and accompanying drawing, the utility model is described further:
As shown in Figure 1, the utility model is made up of upper pin thread 1, metallic core 2, pad 3, wiper block 4, guiding gutter 5, lower pin thread 6, rod collar 7.Metallic core 2 and upper pin thread 1 connecting with pumping rod, lower pin thread 6 is connected with rod collar 7, and rod collar 7 connects another root sucker rod below, by that analogy, the part of composition rod string.Metallic core 2 is processed by high strength alloy steel, bears the load of pump.Wiper block 4 is enclosed within metallic core 2, wiper block about 4 shimming 3, and metallic core 2 limits wiper block 4 and moves, and avoids the impact to wiper block.Wiper block 4 external diameter is larger than the external diameter of rod collar 7 and metallic core 2, and more smaller than pipe aperture, belonging to chance with tube inner wall and contact, is sliding friction, and object helps sucker rod to occupy in the middle of oil pipe.Wiper block 4 has guiding gutter 5, increases the fluid course between oil pipe and sucker rod.This wiper block 4 is ceramic materialss, is shaped by high temperature sintering, external surface oiling.This wiper block 4 is by ceramic high temperature thermal sintering, abnormal pliable and tough, anti-fight, shock, indeformable, corrosion-resistant, wear-resistant.
As required, further optimization and/or improvements can be done to above-mentioned ceramic materials beam centralizer:
The motion of metallic core restriction wiper block, can avoid the impact to wiper block.
Metallic core is processed by high strength alloy steel, can bear the load of pump.
Wiper block external diameter is larger than the external diameter of rod collar and metallic core, and more smaller than pipe aperture, belonging to chance with tube inner wall and contact, is sliding friction, and object helps sucker rod to occupy in the middle of oil pipe
Wiper block is made up of ceramic materials, is shaped by high temperature sintering, external surface oiling.Pliable and tough, anti-fight, shock, indeformable, corrosion-resistant, abrasion resistance properties is good.
Above technical characteristic constitutes most preferred embodiment of the present utility model, and has stronger compliance and best implementation result, can the non-essential technical characteristic of goodbye according to actual needs, is meeting different situations needs.
Claims (5)
1. a ceramic materials oil pumping rod centering device, is characterized in that comprising metallic core, wiper block, rod collar; Metallic core is connected with wiper block, rod collar, metallic core and upper pin thread connecting with pumping rod, another root sucker rod is connected below rod collar, lower pin thread is connected with rod collar, bears the load of pump, and wiper block is enclosed within metallic core, wiper block belongs to chance with rod collar and metallic core with tube inner wall and contacts, wiper block has guiding gutter, and increase the fluid course between oil pipe and sucker rod, guiding gutter and wiper block realize rounding off.
2. ceramic materials oil pumping rod centering device according to claim 1, it is characterized in that metallic core external diameter is large, less than pipe aperture, sucker rod occupy in the middle of oil pipe.
3. ceramic materials oil pumping rod centering device according to claim 1 and 2, is characterized in that centralizer guiding gutter and wiper block can prevent sintering stress from concentrating and produce, increases section area of passage and take wax ability.
4. ceramic materials oil pumping rod centering device according to claim 1 and 2, is characterized in that ceramic materials wiper block external surface is coated with glaze, ensures the smooth abrasion-proof of wiper block.
5. ceramic materials oil pumping rod centering device according to claim 1 and 2, is characterized in that wiper block uses the pad of exotic material up and down, prevents the upper and lower play of wiper block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420467708.3U CN204266944U (en) | 2014-08-12 | 2014-08-12 | A kind of ceramic materials oil pumping rod centering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420467708.3U CN204266944U (en) | 2014-08-12 | 2014-08-12 | A kind of ceramic materials oil pumping rod centering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204266944U true CN204266944U (en) | 2015-04-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420467708.3U Expired - Fee Related CN204266944U (en) | 2014-08-12 | 2014-08-12 | A kind of ceramic materials oil pumping rod centering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204266944U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194047A (en) * | 2016-08-22 | 2016-12-07 | 中国石油天然气股份有限公司 | A kind of rod collar |
| CN109098672A (en) * | 2018-09-30 | 2018-12-28 | 大庆丹枫石油技术开发有限公司 | A kind of oil pumping rod centering device of heat resistant and wear resistant damage |
-
2014
- 2014-08-12 CN CN201420467708.3U patent/CN204266944U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194047A (en) * | 2016-08-22 | 2016-12-07 | 中国石油天然气股份有限公司 | A kind of rod collar |
| CN109098672A (en) * | 2018-09-30 | 2018-12-28 | 大庆丹枫石油技术开发有限公司 | A kind of oil pumping rod centering device of heat resistant and wear resistant damage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150415 Termination date: 20170812 |