CN202370441U - Anticorrosive and wear-resistant sucker rod - Google Patents
Anticorrosive and wear-resistant sucker rod Download PDFInfo
- Publication number
- CN202370441U CN202370441U CN2011205272199U CN201120527219U CN202370441U CN 202370441 U CN202370441 U CN 202370441U CN 2011205272199 U CN2011205272199 U CN 2011205272199U CN 201120527219 U CN201120527219 U CN 201120527219U CN 202370441 U CN202370441 U CN 202370441U
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- sucker rod
- wear
- anticorrosive
- main body
- external screw
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Abstract
The utility model relates to the technical field of oilfield machinery, and discloses an anticorrosive and wear-resistant sucker rod, aiming at solving the problems on easiness for corrosion and wear as well as release caused by loose fastening of a sucker rod in the prior art. The anticorrosive and wear-resistant sucker rod comprises a sucker rod main body, wherein external screw threads are respectively arranged at the upper end and the lower end of the sucker rod main body, connecting holes are respectively formed at the lower part of the upper external screw threads and at the upper part of the lower external screw threads, and penetrate through the sucker rod main body, an anticorrosive layer is arranged on an outer surface of the sucker rod main body, and expiring holes are formed at two ends of the sucker rod main body, and are communicated with the connecting holes. The anticorrosive and wear-resistant sucker rod has the advantages of simple structure and convenience for machining and manufacture; and moreover working efficiency of an oil pumping unit can be increased and service life of the oil pumping unit can be prolonged when the anticorrosive and wear-resistant sucker rod is applied to the oil pumping unit.
Description
Technical field
The utility model relates to a kind of pumping unit in the oilfield machinery technical field, particularly a kind of sucker rod.
Background technology
Oil pumper is as present oil field oil recovery capital equipment, and sucker rod is the critical component of oil pumping system then, is used to connect oil well pump and oil pumper, plays the effect of transferring power, the stable operation of the whole oil pumping system of the good and bad directly decision of the performance of sucker rod.Sucker rod is immersed in the whole oil pipe tubing string of oil extraction system in the course of the work for a long time, contains hydrogen sulfide, carbon dioxide, water, mould and other comprehensive corrosion factors and hard suspended particulate in the liquid of pumping, therefore; The corrosion and the wear problem of sucker rod become increasingly conspicuous; Corrosion and wearing and tearing reduce the life-span of sucker rod significantly, and the replacement cycle shortens significantly, cause many oil wells because of sucker rod corrosion and the frequent operation of wear out failure; Cost increases, and influences field output simultaneously.Corrosion-resistant and wear failure problem to sucker rod; The domestic anticorrosion and wear-resisting method of raising commonly used mainly contains high-frequency heating sucker rod is carried out hard surfacing, the sucker rod surface is electroplated or chemical plating; Pit shaft adds corrosion inhibiter etc., but corrosion mitigating effect is unsatisfactory.
In addition, in the prior art, generally adopt screwed connection between the sucker rod.Owing to need firmly tighten during last button, to produce pretightning force between the joint, cause the dismounting sucker rod to be wasted time and energy.Simultaneously,, when last button, have anti-top power, cause cannot fasten, be prone to bring out the pumping rod disengaging accident, influence the output of individual well, oil mining is caused greater loss owing to have dead oil, dope and gas in the female joint.At present, in order to prevent to thread off, method commonly used is on sucker rod, to connect anti-dropping device, and both burdensome, reliability is not high again.
The utility model content
The purpose of the utility model is to overcome deficiency of the prior art, the sucker rod that a kind of simple in structure, anticorrosion antiwear is provided and is difficult for threading off.
The purpose of the utility model is achieved in that a kind of sucker rod of anticorrosion antiwear; Comprise the sucker rod body; The upper/lower terminal of said sucker rod body is respectively equipped with external screw thread; The externally threaded top in the below of upper external screw thread and lower end offers the connecting hole that runs through the sucker rod body respectively, and the external surface of said sucker rod body is provided with anticorrosive coat.
The utility model inserts female joint with rod connector earlier before use, firmly tightens behind the Wrench insertion connecting hole to get final product.Compared with prior art the beneficial effect of the utility model is: simple in structure, wear-resisting new capability is good, effectively prevents corrosion, can prolong sucker rod application life, reduces production costs, and has solved the mutual wear problems of rod tube in deep-well and the deflecting well oil withdrawal; In addition, the utility model is provided with the connecting hole that is exclusively used in interspersed Wrench, is convenient to the connection between the sucker rod, and is time saving and energy saving.
As the further improvement of the utility model, the two ends of said sucker rod body have exhaling hole, and said exhaling hole is connected with connecting hole.When rod connector was connected with female joint, dead oil, dope and the gas in the female joint can be discharged through steam vent, does not produce anti-top power, can guarantee effectively that screw thread tightens, and avoided taking place the dropout accident.
As the further improvement of the utility model, said exhaling hole is offered along sucker rod body axis direction.During oil pumping, oil pumper drives sucker rod and pumps, and the sucker rod body bears to be carried on the tubing string and the descending fluctuating load of conducting oneself with dignity, and exhaling hole is in axial direction offered and not only is more conducive to the female joint emptying, and can avoid destroying the sucker rod density of load.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Wherein, 1 sucker rod body; 2 external screw threads; 3 connecting holes; 4 anticorrosive coats; 5 exhaling holes.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done and to be described in further detail.
As shown in Figure 1, be the structural representation of the utility model, a kind of sucker rod of anticorrosion antiwear; Comprise sucker rod body 1; The upper/lower terminal of sucker rod body 1 is respectively equipped with external screw thread 2, and the externally threaded top in the below of upper external screw thread and lower end offers the connecting hole 3 that runs through sucker rod body 1 respectively, and the external surface of sucker rod body 1 is provided with anticorrosive coat 4; The two ends of sucker rod body 1 have exhaling hole 5 along sucker rod body 1 axis direction, and exhaling hole 5 is connected with connecting hole 3.In order to obtain better anticorrosion antiwear performance, anticorrosive coat 4 preferred light weights and anti-corrosion, abrasion resistance be macromolecular material preferably, and its moulding smooth outer surface is avoided wax deposition, the fouling on sucker rod surface.
The utility model is not limited to the foregoing description; On the basis of the disclosed technical scheme of the utility model; Those skilled in the art is according to disclosed technology contents; Do not need performing creative labour just can make some replacements and distortion to some technical characterictics wherein, these replacements and distortion are all in the protection domain of the utility model.
Claims (3)
1. the sucker rod of an anticorrosion antiwear; Comprise the sucker rod body; The upper/lower terminal of said sucker rod body is respectively equipped with external screw thread; The externally threaded top in the below of upper external screw thread and lower end offers the connecting hole that runs through the sucker rod body respectively, it is characterized in that, the external surface of said sucker rod body is provided with anticorrosive coat.
2. the sucker rod of a kind of anticorrosion antiwear according to claim 1 is characterized in that, the two ends of said sucker rod body have exhaling hole, and said exhaling hole is connected with connecting hole.
3. the sucker rod of a kind of anticorrosion antiwear according to claim 2 is characterized in that, said exhaling hole is offered along sucker rod body axis direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205272199U CN202370441U (en) | 2011-12-16 | 2011-12-16 | Anticorrosive and wear-resistant sucker rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205272199U CN202370441U (en) | 2011-12-16 | 2011-12-16 | Anticorrosive and wear-resistant sucker rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202370441U true CN202370441U (en) | 2012-08-08 |
Family
ID=46594148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205272199U Expired - Lifetime CN202370441U (en) | 2011-12-16 | 2011-12-16 | Anticorrosive and wear-resistant sucker rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202370441U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107222A (en) * | 2019-03-26 | 2019-08-09 | 盐城华亚石油机械制造有限公司 | A kind of high sulfur crude gas well special anti-corrosion degumming preventing helicoid hydraulic motor and processing technology |
-
2011
- 2011-12-16 CN CN2011205272199U patent/CN202370441U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107222A (en) * | 2019-03-26 | 2019-08-09 | 盐城华亚石油机械制造有限公司 | A kind of high sulfur crude gas well special anti-corrosion degumming preventing helicoid hydraulic motor and processing technology |
| CN110107222B (en) * | 2019-03-26 | 2021-05-04 | 盐城华亚石油机械制造有限公司 | Special anti-corrosion and anti-glue-dropping screw drilling tool for high-sulfur-content oil and gas well and machining process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120808 |
|
| CX01 | Expiry of patent term |