CN204002623U - A kind of preventing sucker rod from slanting-wear and de-waxing apparatus - Google Patents
A kind of preventing sucker rod from slanting-wear and de-waxing apparatus Download PDFInfo
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- CN204002623U CN204002623U CN201420473664.5U CN201420473664U CN204002623U CN 204002623 U CN204002623 U CN 204002623U CN 201420473664 U CN201420473664 U CN 201420473664U CN 204002623 U CN204002623 U CN 204002623U
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- China
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- pipe
- slip pipe
- sucker rod
- outer slip
- inner sliding
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Abstract
The utility model discloses a kind of preventing sucker rod from slanting-wear and de-waxing apparatus, adopted the outer slip pipe of Double-disc type, Double-disc type inner sliding pipe.Outer slip pipe two ends are wedge scarf, between inside and outside slip pipe, leave flow channels on axially.Before anti-bias grinder tool is gone into the well, by two lobes, inlay and be stuck on sucker rod body, with stainless steel column bolt, run through fixing.Along with sucker rod is together down to predetermined eccentric wear position, when normally working, oil pumper relies on the righting of inside and outside slip pipe, and make rod collar remain at pumping pipe string center, thereby play the effect of anti-eccentric wear.Wedge scarf structure converts abration position along with the variation of well internal loading, has reduced the drawback that directed wearing and tearing bring, and can also play the effect of paraffin cutting, reduces because of the impact of long-pending wax on pump.
Description
Technical field
The utility model relates to extracting device of oil field, especially a kind of anti-eccentric wear and de-waxing apparatus for sucker rod.
Background technology
Sucker rod is subject to load that eccentric wear easily occurs in the course of the work, and cannot process long-pending wax.China Patent No. is that the patent documentation of CN200420055778.4 discloses a kind of collar clamp type eccentric wear proof centralizer, comprise anti-bias grinding set and rod collar, rod collar is provided with groove, the inwall of anti-bias grinding set is provided with projection, on the outer wall of rod collar, be provided with the groove corresponding with projection, rod collar is with anti-bias grinding set through projection and the clamping of groove phase, and the outer wall of anti-bias grinding set is provided with at least two boss.Though this centralizer has certain anti-eccentric wear effect, but still can produce directed wearing and tearing, next lacks effective paraffin cutting means, cannot process long-pending wax.
Summary of the invention
The purpose of this utility model is the deficiency existing for prior art, and a kind of preventing sucker rod from slanting-wear and de-waxing apparatus that better prevents sucker rod wearing and tearing and remove wax deposition that have is provided.
In order to solve above technical problem, the utility model is realized by mode by the following technical solutions:
Anti-eccentric wear and de-waxing apparatus comprise inner sliding pipe and outer slip pipe, between inner sliding pipe and outer slip pipe, pass through link of boards; Described inner sliding pipe length is greater than outer slip pipe, and inner sliding pipe upper and lower end face protrudes from outer slip pipe upper and lower end face; Link of boards place between inner sliding pipe and outer slip pipe is provided with the flow channels of axial perforation; The upper and lower both ends of the surface of outer slip pipe be wedge scarf.
Such scheme also comprises: described inner sliding pipe, outer slip pipe are two lobe formula grafting butted structures vertically together with gusset, in its involutory portion, by post bolt, are fixed together; Described post bolt quantity is two, and the axis of inner sliding pipe is arranged symmetrically with installation relatively.
Described post bolt bottom has open slot.
Such scheme further comprises: externally slip pipe stringcourse cross section mirror image is symmetrical mutually for the wedge scarf of the upper and lower both ends of the surface of described outer slip pipe.
Operating principle of the present utility model is before going into the well, and by two lobes, is inlayed and is stuck on sucker rod body, with post bolt, runs through fixing.Along with sucker rod is together down to predetermined eccentric wear position, when normally working, oil pumper relies on the righting of inside and outside slip pipe, and make rod collar remain at pumping pipe string center, thereby play the effect of anti-eccentric wear.Constantly swipe outside oil, wax of reciprocating while of outer slip pipe simultaneously, though and by the oily conductance of flow-guiding channel, go out, avoid wax deposition phenomenon.
Compared with prior art, the beneficial effects of the utility model are: (1) is simple in structure, and fitting operation is convenient; (2) wedge scarf structure can convert abration position along with the variation of well internal loading, has reduced the drawback that directed wearing and tearing bring, and has extended the application life of instrument and the production cycle of oil well; (3) the flow channels area between inside and outside slip pipe is large, and oil flow resistance is little, is conducive to improve the pump efficiency of oil well pump; (4) scarf up and down of outer slip pipe can play the effect of paraffin cutting, reduces because of the impact of long-pending wax on pump; (5) inserted installation supporting capacity is large, and not fragile, the life-span is long; (6) spacing of the maintenance of inner tube projection and rod collar, has reduced the resistance that liquid flows; (7) inside and outside slip pipe righting, is conducive to reduce the wearing and tearing to oil pipe and sucker rod.
Accompanying drawing explanation
Fig. 1 is the structural front view of preventing sucker rod from slanting-wear of the present utility model and de-waxing apparatus.
Fig. 2 is the left view of Fig. 1.
Fig. 3 be in Fig. 2 along A-A cross-sectional view.
Fig. 4 be Fig. 1 top view.
Mark in figure: 1, inner sliding pipe, 2, outer slip pipe, 3, post bolt, 4, open slot, 5, flow channels, 6, scarf, 7, gusset.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
With reference to Figure of description 1 and accompanying drawing 2, a kind of preventing sucker rod from slanting-wear and de-waxing apparatus, mainly comprise outer slip pipe 2 and inner sliding pipe 1, connects 9(also can adopt Integral connection structure between inner sliding pipe 1 and outer slip pipe 2 by gusset 7); Between inner sliding pipe 1 and outer slip pipe 2, leave flow channels 5; Outer slip pipe Shang Xia 2 both ends of the surface be wedge scarf 6 structures.
Inner sliding pipe 1, outer slip pipe 2 and between the whole two lobe formula connected structures that form vertically of gusset 7, and be fixed together by post bolt 3.Post bolt 3 quantity are two, and the axis of inner sliding pipe 1 is arranged symmetrically with installation relatively.Externally slip pipe 2 stringcourse cross section mirror images are symmetrical mutually for the wedge scarf of outer slip pipe both ends of the surface Shang Xia 2.Inner sliding pipe 1 length is greater than outer slip pipe 2, and inner sliding pipe 1 upper and lower end face protrudes from outer slip pipe 2 upper and lower end faces.
The anti-eccentric wear of the present embodiment and de-waxing apparatus have adopted the outer slip pipe of Double-disc type, Double-disc type inner sliding pipe.Outer slip pipe two ends are wedge scarf, between inside and outside slip pipe, leave flow channels on axially.Before this instrument is gone into the well, by two lobes, inlay and be stuck on sucker rod body, with stainless steel column bolt, run through fixing.Along with sucker rod is together down to predetermined eccentric wear position, when normally working, oil pumper relies on the righting of inside and outside slip pipe, and make rod collar remain at pumping pipe string center, thus the effect of playing anti-eccentric wear and removing wax deposition.
Claims (4)
1. preventing sucker rod from slanting-wear and a de-waxing apparatus, is characterized in that: comprise inner sliding pipe (1) and outer slip pipe (2), between inner sliding pipe (1) and outer slip pipe (2), by gusset (7), connect; Described inner sliding pipe (1) length is greater than outer slip pipe (2), and inner sliding pipe (1) upper and lower end face protrudes from outer slip pipe (2) upper and lower end face; Gusset (7) junction between inner sliding pipe (1) and outer slip pipe (2) is provided with the flow channels (5) of axial perforation; The upper and lower both ends of the surface of outer slip pipe (2) be wedge scarf (6).
2. preventing sucker rod from slanting-wear according to claim 1 and de-waxing apparatus, it is characterized in that: described inner sliding pipe (1), outer slip pipe (2) are two lobe formula grafting butted structures vertically together with gusset (7), in its involutory portion, by post bolt (3), are fixed together; Described post bolt (3) quantity is two, and the axis of inner sliding pipe (1) is arranged symmetrically with installation relatively.
3. preventing sucker rod from slanting-wear according to claim 2 and de-waxing apparatus, is characterized in that: described post bolt (3) bottom has open slot (4).
4. according to preventing sucker rod from slanting-wear and de-waxing apparatus described in claim 1 or 2,3, it is characterized in that: externally slip pipe (2) stringcourse cross section mirror image is symmetrical mutually for the wedge scarf (6) of the upper and lower both ends of the surface of described outer slip pipe (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420473664.5U CN204002623U (en) | 2014-08-21 | 2014-08-21 | A kind of preventing sucker rod from slanting-wear and de-waxing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420473664.5U CN204002623U (en) | 2014-08-21 | 2014-08-21 | A kind of preventing sucker rod from slanting-wear and de-waxing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204002623U true CN204002623U (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420473664.5U Expired - Fee Related CN204002623U (en) | 2014-08-21 | 2014-08-21 | A kind of preventing sucker rod from slanting-wear and de-waxing apparatus |
Country Status (1)
| Country | Link |
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| CN (1) | CN204002623U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153723A (en) * | 2014-08-21 | 2014-11-19 | 陈士荣 | Anti-eccentric-wear wax removal device for sucker rod |
| CN106593331A (en) * | 2016-12-27 | 2017-04-26 | 中国石油化工股份有限公司 | Oil-water well eccentricity rectification liquid conveying device |
| CN108643848A (en) * | 2018-06-19 | 2018-10-12 | 天津市益彰石油科技发展有限公司 | Sucker rod protects device entirely |
-
2014
- 2014-08-21 CN CN201420473664.5U patent/CN204002623U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153723A (en) * | 2014-08-21 | 2014-11-19 | 陈士荣 | Anti-eccentric-wear wax removal device for sucker rod |
| CN104153723B (en) * | 2014-08-21 | 2016-04-20 | 陈士荣 | A kind of preventing sucker rod from slanting-wear and de-waxing apparatus |
| CN106593331A (en) * | 2016-12-27 | 2017-04-26 | 中国石油化工股份有限公司 | Oil-water well eccentricity rectification liquid conveying device |
| CN108643848A (en) * | 2018-06-19 | 2018-10-12 | 天津市益彰石油科技发展有限公司 | Sucker rod protects device entirely |
| CN108643848B (en) * | 2018-06-19 | 2024-03-08 | 天津市益彰石油科技发展有限公司 | Sucker rod full protector |
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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: 20141210 Termination date: 20150821 |
|
| EXPY | Termination of patent right or utility model |