CN201502340U - Self-correction synclastic curvature coated type oil well eccentric wear prevention device - Google Patents
Self-correction synclastic curvature coated type oil well eccentric wear prevention device Download PDFInfo
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- CN201502340U CN201502340U CN2009202168800U CN200920216880U CN201502340U CN 201502340 U CN201502340 U CN 201502340U CN 2009202168800 U CN2009202168800 U CN 2009202168800U CN 200920216880 U CN200920216880 U CN 200920216880U CN 201502340 U CN201502340 U CN 201502340U
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- steel core
- centralizer body
- connecting rod
- oil well
- protection layer
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Abstract
A self-correction synclastic curvature coated type oil well eccentric wear prevention device comprises a centralizer body, a spindle connection rod and a collar, wherein the centralizer body consists of a steel core and a wear-resistant protective layer. The steel core takes the shape of a medium-size waist drum sleeve; the inner wall surface of the steel core is a smooth cylindrical surface; the outer wall surface of the steel core consists of three arc surfaces; the upper end surface and the lower end surface of the steel core are provided with circular arc chamfers; the wear-resistant protective layer corresponds to the shape of the steel core and is tightly coated on the outer surface of the steel core; the upper part of the spindle connection rod is provided with a limited boss; the middle part of the spindle connection rod is provided with a sand-guiding slot; the upper end and the lower end of the spindle connection rod are provided with nipples; the inner wall surface of the collar is provided with a screw thread; the outer wall surface of the collar is provided with a wrench slot; the steel core of the centralizer body is sheathed at the middle part of the spindle connection rod; the collar is connected onto the nipple at the lower end of the spindle connection rod; and two ends of the centralizer body are respectively positioned by the limited boss and the collar. The device has the advantages of simple structure, science and reasonableness, novelty and uniqueness, good wear resistance and diversion effect, and does not destroy nor damage a sucker rod and an oil tube.
Description
Technical field
The utility model relates to the well rod erection device, specifically, is a kind of " revising certainly with curvature clad type used for eccentric wear prevention of oil well device ".
Background technology
In the oil extraction process, need to use the sucker rod erection device, there are a lot of disadvantages in existing sucker rod erection device, for example, hold up whole and the tube inner wall of erection device all are dotted line contact frictions, easily oil pipe is damaged, or self component is too much, anti-eccentric wear weak effect, water conservancy diversion poor effect, hold up integral body not wear-resisting, heatproof not, easily loss is aging, use unstablely, come off and wear and tear and to cause serious holddown consequence, accident rate height in case component occur, therefore, it is good to be badly in need of a kind of abrasion resistance, water conservancy diversion is effective, and the not fragile sucker rod erection device that does not injure R a T.
The utility model content
The purpose of this utility model provides a kind of from revising with curvature clad type used for eccentric wear prevention of oil well device, and this apparatus structure is simple, scientific and reasonable, the novelty uniqueness, and abrasion resistance is good, water conservancy diversion is effective, the not fragile R a T that do not injure again.
For achieving the above object, the utility model is by the following technical solutions:
A kind of from revising with curvature clad type used for eccentric wear prevention of oil well device, comprise centralizer body, the mandrel connecting rod, box cupling, it is characterized in that: centralizer body is made of steel core and wear Protection layer, steel core be in thick waist drum sleeve shaped, the internal face of steel core is smooth cylinder, the outside wall surface of steel core is made of three cambered surfaces, these three cambered surfaces are pressed equilateral triangle and are distributed, the curvature of these three cambered surfaces is identical, on the steel core, the lower surface is provided with circular arc chamfering, described wear Protection layer conforms to the shape of steel core is corresponding, the wear Protection layer tightly is coated on the external surface of steel core, the top of mandrel connecting rod is provided with positive stop lug boss, the middle part of mandrel connecting rod is provided with the training for sediment groove, on the mandrel connecting rod, following two ends are provided with nipple, described box cupling is a cylindrical shape, the internal face of box cupling is provided with the screw thread screw thread, the outside wall surface of box cupling is provided with the spanner groove, the steel core of described centralizer body is enclosed within the middle part of mandrel connecting rod, on the nipple of mandrel connecting rod lower end, the two ends of described centralizer body are respectively by positive stop lug boss and box cupling location by the screw thread screwed connection for described box cupling.
Described training for sediment groove is made of four to six strip grooves, and these groove hoops are distributed on the outside wall surface at mandrel connecting rod middle part.
Described wear Protection layer is made of carbon fiber reinforced polyether-ether-ketone, polyimides alloy material.
Described wear Protection layer is made of polyimide material.
Described wear Protection layer is made of polyetheretherketonematerials materials.
The utility model has following positive beneficial effect:
Centralizer body of the present utility model adopts dolioform external arc formula design thick in the positive triangle.Thoroughly changed the situation of traditional sucker rod erection device and the contact friction of oil pipe dotted line.The arc surface curvature of the wear Protection layer of this centralizer body is identical, and in full accord with tube inner wall.The work area of the wear Protection layer of this centralizer body is 20 times of traditional centralizer body, and because of contact area increases 20 times, pressure just reduces 20 times relatively.
Centralizer body of the present utility model is made of steel core and wear Protection layer, and the wear Protection layer can be made of carbon fiber reinforced polyether-ether-ketone, polyimides alloy material, also can be made of polyimides homogenous material or polyether-ether-ketone homogenous material.Make the surface of centralizer body have high strength, high rigidity, best bright finish, high abrasion, high temperature tolerance, the metal affinity between centralizer body and the oil pipe is reduced to minimum, friction factor is also reduced to minimum.On when work centralizer body, also can form a kind of uniform oil film, reduce the frictional force with tubing wall, simultaneously intact again protection tube inner wall, have bidirectional protective effect truly.
This centralizer body adopts dolioform cylindrical arc design thick in the positive triangle; what it adopted when moving back and forth is the face contact; the guide effect of circular arc in addition; centralizer body can be judged the incline direction of sucker rod automatically; distortion degree with oil pipe changes adjustment angle of inclination automatically; fast automatic rotation; the wear Protection layer and the tube inner wall of centralizer body are fitted like a glove; increased contact area; just reduced the dispersion of centralizer body relatively to the pressure action power of tube inner wall; friction factor falls little naturally, has protected tube inner wall to preserve from effectively, has prolonged application life and the well workover cycle of self.
The circular arc chamfering structure is adopted in the upper and lower end of this centralizer body, avoided sucker rod and oil pipe end to cut mutually and wearing and tearing mutually, the shake and the unstability of sucker rod have been solved simultaneously again, avoided bump effectively, centralizer body is steadily streaked, alleviate greatly and avoided accident generation and when bump the pipe wire garnishment give birth to leakage problems.
The wear Protection layer of this centralizer body adopts advanced processing treatment process; self possess high rigidity, best bright finish, high strength, high-wearing feature; even run into the ruined oil pipe of internal diameter physical dimension; as have an oil pipe of burr, rust staining, the grains of sand; this centralizer body is easy damaged not also, has protected self effectively, has guaranteed safety in production; improve production efficiency, reduced cost.
Description of drawings
Fig. 1 is the structural representation of the utility model one embodiment.
Fig. 2 is the sectional view of Fig. 1.
Fig. 3 is the exploded view of Fig. 1.
Fig. 4 is the exploded view of Fig. 2.
Fig. 5 is the structural representation of centralizer body.
Fig. 6 is the vertical view of centralizer body.
Fig. 7 is the A-A sectional view of Fig. 4.
Fig. 8 is the structural representation of training for sediment groove.
The specific embodiment
Number in the figure
1 centralizer body, 2 mandrel connecting rods, 3 box cuplings
4 steel cores, 5 wear Protection layers, 6 cylinder
7 cambered surfaces, 8 chamferings, 9 chamferings
10 positive stop lug boss, 11 training for sediment grooves, 12 nipples
13 nipples, 14 screw thread screw threads, 15 spanner grooves
Please refer to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, the utility model is a kind of from revising with curvature clad type used for eccentric wear prevention of oil well device, comprise centralizer body 1, mandrel connecting rod 2, box cupling 3, centralizer body 1 is made of as shown in Figure 5 steel core 4 and wear Protection layer 5, steel core 4 be in thick waist drum sleeve shaped, the internal face of steel core 4 is smooth cylinder 6, the outside wall surface of steel core 4 is made of three cambered surfaces 7, these three cambered surfaces 7 are pressed equilateral triangle and are distributed, the curvature of these three cambered surfaces 7 is identical, on the steel core 4, the lower surface is respectively arranged with circular arc chamfering 8,9, wear Protection layer 5 conforms to the shape of steel core 4 is corresponding, wear Protection layer 5 tightly is coated on the external surface of steel core 4, the top of mandrel connecting rod 2 is provided with positive stop lug boss 10, the middle part of mandrel connecting rod 2 is provided with training for sediment groove 11, on the mandrel connecting rod 2, following two ends are respectively arranged with nipple 12,13, box cupling 3 is a cylindrical shape, the internal face of box cupling 3 is provided with screw thread screw thread 14 as Fig. 2, shown in Figure 4, the outside wall surface of box cupling 3 is provided with spanner groove 15 as Fig. 1, shown in Figure 3, box cupling 3 can be screwed on the nipple of mandrel connecting rod 2 by spanner, the steel core 4 of centralizer body 1 is enclosed within the middle part of mandrel connecting rod 2, the top of box cupling 3 is connected by screw thread screw thread 14 on the nipple 13 of mandrel connecting rod 2 lower ends, and the two ends of centralizer body 1 are respectively by positive stop lug boss 10 and box cupling 3 location.Centralizer body 1 can rotate on mandrel connecting rod 2 flexibly, can the grains of sand be got rid of by the training for sediment groove 11 at mandrel connecting rod 2 middle parts even the grains of sand in the oil well enter also, guarantees that centralizer body 1 rotates on mandrel connecting rod 2 flexibly, guarantees that this device normally uses.
Please refer to Fig. 7, training for sediment groove 11 can be made of four strip grooves, and these groove hoops are distributed on the outside wall surface at mandrel connecting rod 2 middle parts.
Please refer to Fig. 8, training for sediment groove 11 also can be made of six strip grooves, and these groove hoops are distributed on the outside wall surface at mandrel connecting rod 2 middle parts.
Wear Protection layer 5 can be made of carbon fiber reinforced polyether-ether-ketone, polyimides alloy material, also can be made of polyimides homogenous material or polyether-ether-ketone homogenous material.Wear Protection layer 5 makes the surface of centralizer body 1 have high strength, high rigidity, best bright finish, high abrasion, high temperature tolerance, and the metal affinity between centralizer body and the oil pipe is reduced to minimum, and friction factor is also reduced to minimum.On when work centralizer body, also can form a kind of uniform oil film, reduce the frictional force with tubing wall, simultaneously intact again protection tube inner wall, have bidirectional protective effect truly.
Claims (5)
1. revise certainly with curvature clad type used for eccentric wear prevention of oil well device for one kind, comprise centralizer body, the mandrel connecting rod, box cupling, it is characterized in that: centralizer body is made of steel core and wear Protection layer, steel core be in thick waist drum sleeve shaped, the internal face of steel core is smooth cylinder, the outside wall surface of steel core is made of three cambered surfaces, these three cambered surfaces are pressed equilateral triangle and are distributed, the curvature of these three cambered surfaces is identical, on the steel core, the lower surface is provided with circular arc chamfering, described wear Protection layer conforms to the shape of steel core is corresponding, the wear Protection layer tightly is coated on the external surface of steel core, the top of mandrel connecting rod is provided with positive stop lug boss, the middle part of mandrel connecting rod is provided with the training for sediment groove, on the mandrel connecting rod, following two ends are provided with nipple, described box cupling is a cylindrical shape, the internal face of box cupling is provided with the screw thread screw thread, the outside wall surface of box cupling is provided with the spanner groove, the steel core of described centralizer body is enclosed within the middle part of mandrel connecting rod, on the nipple of mandrel connecting rod lower end, the two ends of described centralizer body are respectively by positive stop lug boss and box cupling location by the screw thread screwed connection for described box cupling.
2. as claimed in claim 1 it is characterized in that: described training for sediment groove is made of four to six strip grooves from revising with curvature clad type used for eccentric wear prevention of oil well device, and these groove hoops are distributed on the outside wall surface at mandrel connecting rod middle part.
3. as claimed in claim 1 from revising with curvature clad type used for eccentric wear prevention of oil well device, it is characterized in that: described wear Protection layer is made of carbon fiber reinforced polyether-ether-ketone, polyimides alloy material.
4. as claimed in claim 1 from revising with curvature clad type used for eccentric wear prevention of oil well device, it is characterized in that: described wear Protection layer is made of polyimide material.
5. as claimed in claim 1 from revising with curvature clad type used for eccentric wear prevention of oil well device, it is characterized in that: described wear Protection layer is made of polyetheretherketonematerials materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202168800U CN201502340U (en) | 2009-09-23 | 2009-09-23 | Self-correction synclastic curvature coated type oil well eccentric wear prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202168800U CN201502340U (en) | 2009-09-23 | 2009-09-23 | Self-correction synclastic curvature coated type oil well eccentric wear prevention device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201502340U true CN201502340U (en) | 2010-06-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202168800U Expired - Fee Related CN201502340U (en) | 2009-09-23 | 2009-09-23 | Self-correction synclastic curvature coated type oil well eccentric wear prevention device |
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| CN (1) | CN201502340U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224362A (en) * | 2016-09-12 | 2016-12-14 | 周杰 | A kind of fan blade rotates with the linear double end axis of guide |
| CN107839262A (en) * | 2017-12-04 | 2018-03-27 | 徐洪 | A kind of PEEK/TPI alloy screws and its injection molding process |
| CN108590545A (en) * | 2018-05-30 | 2018-09-28 | 中国石油天然气股份有限公司 | Anti-abrasion, anti-corrosion, anti-wax and anti-scale sucker rod and method |
-
2009
- 2009-09-23 CN CN2009202168800U patent/CN201502340U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224362A (en) * | 2016-09-12 | 2016-12-14 | 周杰 | A kind of fan blade rotates with the linear double end axis of guide |
| CN107839262A (en) * | 2017-12-04 | 2018-03-27 | 徐洪 | A kind of PEEK/TPI alloy screws and its injection molding process |
| CN108590545A (en) * | 2018-05-30 | 2018-09-28 | 中国石油天然气股份有限公司 | Anti-abrasion, anti-corrosion, anti-wax and anti-scale sucker rod and method |
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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 |
Granted publication date: 20100609 Termination date: 20150923 |
|
| EXPY | Termination of patent right or utility model |