CN201650150U - Novel elastically-supported wear-resistant and wear-reducing pair - Google Patents
Novel elastically-supported wear-resistant and wear-reducing pair Download PDFInfo
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- CN201650150U CN201650150U CN2010201293416U CN201020129341U CN201650150U CN 201650150 U CN201650150 U CN 201650150U CN 2010201293416 U CN2010201293416 U CN 2010201293416U CN 201020129341 U CN201020129341 U CN 201020129341U CN 201650150 U CN201650150 U CN 201650150U
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Abstract
The utility model discloses a novel elastically-supported wear-resistant and wear-reducing pair and aims to provide a wear-resistant and wear-reducing pair which has the advantages of reasonable structure and outstanding performance and is capable of easily improving the situation that the pipes and rods of a sucker-rod pump well is prone to eccentric wear. The wear-resistant and wear-reducing pair mainly comprises a wear-reducing rod and a slider-type centralizer, wherein the wear-reducing rod has a standard structure of a sucker rod; the surface of the rod body is polished to make the surface of the rod body firm and smooth; the slider-type centralizer comprises a friction slider, a supporting spring and a centralizer body; the entire friction slider is made from composite resin; the inner surface of the centralizer body and the exposed surface of the friction slider are subjected to coating wear-reducing treatment, thus ensuring the ultrahigh wear resistance; and the slider-type centralizer is divided into two bodies and sleeved on the sucker rod in a sliding-joint manner when in use.
Description
Technical field
The utility model relates to a kind of novel elastic brace type antiwear and reducing friction pair, is a kind of antiwear and reducing friction pair that is applied in the oil exploitation industry specifically, belongs to the oil production equipment field.
Background technology
Reduction and rise of water cut along with the oil reservoir energy, oil field development is to high water-cut stage, because hole deviation, reasons such as casing buckling distortion cause the rod-pumped well load constantly to increase, because well corrosion, lubrication state constantly reason such as deterioration causes tubing in sucker rod pumping wells and sucker rod partial wear problem more and more serious, particularly because high moisture, the corrosion of high salinity output liquid has more aggravated the side-abrasion of rod string of rod-pumped well, make eccentric wear more and more outstanding with the disconnected problem of taking off, cause the frequent operation of oil well and a large amount of tubing, scrapping in early days of pole stock, shortened the oil well production cycle, increase the inferior and operating cost of well in operation, increased the cost of production of oil field development greatly.
The utility model content
The purpose of this utility model is the problem that exists at background technology, and design provides a kind of novel elastic brace type antiwear and reducing friction pair, and this antiwear and reducing friction pair mainly is made up of anti-attrition bar, slide block type centralizer.The anti-attrition bar adopts standard sucker rod form of structure, and attrition process has been carried out on body of rod surface, makes that body of rod surface is hard smooth; The slide block type centralizer is made up of friction slip, support spring, centralizer main body, and friction slip integral body is made by compound resin, and centralizer body inner surface, friction slip exposed face are handled through the coating anti-attrition, have the superpower wear-resistant performance.The slide block type centralizer is divided into two bodies, is set on the anti-attrition bar by slip butt joint form during use.
In order to achieve the above object, the utility model is realized by following technological means.
A kind of novel elastic brace type antiwear and reducing friction pair, include nipple, anti-attrition bar, friction slip, support spring, centralizer main body, anti-attrition box cupling, ceramic wearing course, antiwear composite layer major part, wherein: the left end at the anti-attrition bar is provided with nipple, be provided with anti-attrition at the right-hand member of anti-attrition bar and connect sieve, be provided with the centralizer main body at the middle part of anti-attrition bar; The centralizer main body is provided with 4 support springs, is respectively arranged with 4 friction slips on 4 support springs, and friction slip, support spring and centralizer main body are formed the slide block type centralizer; Be provided with ceramic wearing course at slide block type centralizer middle part, be provided with the antiwear composite layer at slide block type centralizer two ends.
Machining screw behind the described anti-attrition bar two end joints employing upsetting process (adopting identical standard with common rod connector processing technology, thread parameter) has avoided the wear-resistant secondary sucker rod screw thread of equal diameter place stress to concentrate the thread root phenomenon of rupture that causes; The fillet of the body of rod and pier thick junction design is less than the fillet of common sucker rod, when preventing that wear-resistant sleeve from moving on the body of rod, in place, two ends jam, long service life.The anti-attrition bar adopts structural alloy steel through overall enhanced, and the surface strengthens, Wear-resistant Treatment.
Described slide block type centralizer adopts split changeable type structure, have the tight mechanism of mortise lock, promptly can with the supporting use of anti-attrition bar, also can match in common sucker rod, reduced use cost, with anti-attrition bar wear-resisting ceramic wearing course and the antiwear composite layer that contacted the inner surface lining, the intensity and the abrasion resistance of anti-attrition pair have been guaranteed, designed suitable fit clearance between the centralizer and the wear-resistant body of rod, suitable dimensions has been designed at two ends at inner core, has avoided the stuck phenomenon that can not slide relatively in body of rod end of centralizer in oil pumping process.
Described anti-attrition box cupling is the wear-resisting nonmetallic composite of cast one deck on the standard rod collar, and when in a single day wear bar eccentric wear took place, non-metallic part contacted with tube inner wall, and friction factor is little.High-abrasive material is selected macromolecular material for use, through modification, has the superpower wear-resistant function.
The utility model mainly has following good effect and technical characterictic:
The secondary bonding strength height of this novel elastic brace type antiwear and reducing friction, the novel wear-resistant secondary body of rod adopts standard sucker rod jumping-up head, is difficult for break-off accident takes place, and has anti-attrition, wear-resistant double grading; Box cupling adopts high wear-resistant nonmetal, metal composite technology, has anti-attrition, wear-resistant double grading, protects oil pipe to greatest extent, the reliability of positioning height; Spring adopts the manufacturing of import stainless steel, and under the prerequisite that guarantees normally to be lowered at sucker rod, elastic force is big, guarantees to set upright to be securely in place tube inner wall; Reusability is good, and centralizer body adopts the split type replaceable structure of resilient support, when centralizer body is changed, can conveniently finish.
Description of drawings
Fig. 1 is a front view of the present utility model;
Fig. 2 is the centralizer front view on the utility model.
Fig. 3 is the centralizer A-A cross section view on the utility model.
Fig. 4 is the centralizer B-B bevel view on the utility model.
As shown in the figure, the Arabic numerals among the figure are expressed as follows:
1. nipple, 2. anti-attrition bar, 3. friction slip, 4. support spring, 5. centralizer main body, 6. anti-attrition box cupling, 7. ceramic wearing course, 8. antiwear composite layer.
The specific embodiment
With embodiment the utility model is described in further detail with reference to the accompanying drawings below.
As shown in Figure 1 and Figure 2, be provided with nipple 1, be provided with anti-attrition box cupling 6, be provided with centralizer main body 5 at the middle part of anti-attrition bar 2 at the right-hand member of anti-attrition bar 2 at the left end of anti-attrition bar 2;
As shown in Figure 3, Figure 4, centralizer main body 5 is provided with 4 support springs 4, is respectively arranged with 4 friction slips 3 on 4 support springs 4, and friction slip 3, support spring 4 and centralizer main body 5 are formed the slide block type centralizer; Be provided with ceramic wearing course 7 at slide block type centralizer middle part, be provided with antiwear composite layer 8 at slide block type centralizer two ends.
Claims (3)
1. novel elastic brace type antiwear and reducing friction pair, it comprises: nipple (1), anti-attrition bar (2), friction slip (3), support spring (4), centralizer main body (5), anti-attrition box cupling (6), ceramic wearing course (7), antiwear composite layer (8) major part, it is characterized in that: the left end at anti-attrition bar (2) is provided with nipple (1), right-hand member at anti-attrition bar (2) is provided with anti-attrition box cupling (6), is provided with centralizer main body (5) at the middle part of anti-attrition bar (2); Centralizer main body (5) is provided with 4 support springs (4), is respectively arranged with 4 friction slips (3) on 4 support springs (4), and friction slip (3), support spring (4) and centralizer main body (5) are formed the slide block type centralizer; Be provided with ceramic wearing course (7) at slide block type centralizer middle part, be provided with antiwear composite layer (8) at slide block type centralizer two ends.
2. novel elastic brace type antiwear and reducing friction pair according to claim 1 is characterized in that: described anti-attrition bar (2) two end joints are the thick shape of pier, have machining screw; The fillet of the body of rod and pier thick junction design is less than the fillet of common sucker rod.
3. novel elastic brace type antiwear and reducing friction pair according to claim 1 is characterized in that: described slide block type centralizer adopts and divides body structure, has the tight mechanism of mortise lock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201293416U CN201650150U (en) | 2010-03-12 | 2010-03-12 | Novel elastically-supported wear-resistant and wear-reducing pair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201293416U CN201650150U (en) | 2010-03-12 | 2010-03-12 | Novel elastically-supported wear-resistant and wear-reducing pair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201650150U true CN201650150U (en) | 2010-11-24 |
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ID=43115382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201293416U Expired - Fee Related CN201650150U (en) | 2010-03-12 | 2010-03-12 | Novel elastically-supported wear-resistant and wear-reducing pair |
Country Status (1)
| Country | Link |
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| CN (1) | CN201650150U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883264A (en) * | 2014-03-21 | 2014-06-25 | 中国石油天然气股份有限公司冀东油田分公司钻采工艺研究院 | Ceramic coating anti-eccentric drill column antifriction torque-reducing pup joint |
| CN104295244A (en) * | 2014-09-30 | 2015-01-21 | 胜利油田胜机石油装备有限公司 | Combined antiseptic and wear-resistant sucker rod |
| CN104895510A (en) * | 2015-06-11 | 2015-09-09 | 西南石油大学 | Slip ring type centering device |
-
2010
- 2010-03-12 CN CN2010201293416U patent/CN201650150U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883264A (en) * | 2014-03-21 | 2014-06-25 | 中国石油天然气股份有限公司冀东油田分公司钻采工艺研究院 | Ceramic coating anti-eccentric drill column antifriction torque-reducing pup joint |
| CN104295244A (en) * | 2014-09-30 | 2015-01-21 | 胜利油田胜机石油装备有限公司 | Combined antiseptic and wear-resistant sucker rod |
| CN104895510A (en) * | 2015-06-11 | 2015-09-09 | 西南石油大学 | Slip ring type centering device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20120312 |