CN102828699A - Anti-torsion sucker rod - Google Patents
Anti-torsion sucker rod Download PDFInfo
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- CN102828699A CN102828699A CN2012103550023A CN201210355002A CN102828699A CN 102828699 A CN102828699 A CN 102828699A CN 2012103550023 A CN2012103550023 A CN 2012103550023A CN 201210355002 A CN201210355002 A CN 201210355002A CN 102828699 A CN102828699 A CN 102828699A
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- sucker rod
- thread
- annular protrusion
- box cupling
- threaded
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Abstract
The invention discloses an anti-torsion sucker rod which comprises a first sucker rod and a second sucker rod connected together through a coupling, wherein the first sucker rod is provided with a first annular bulge and a first threaded end in threaded connection with the coupling; the second sucker rod is provided with a second annular bulge and a second threaded end in threaded connection with the coupling; the two end surfaces of the coupling are placed against the end surfaces of the first annular bulge and the second annular bulge respectively; and the end surfaces of the first threaded end and the second threaded end are placed against each other. The anti-torsion sucker rod disclosed by the invention solves the technical problems of poor torsion resistance and short service life of the sucker rod, and is widely applied to oil fields, oil gas and drilling.
Description
Technical field
The present invention relates to the sucker rod technical field, relate in particular to a kind of antitorque sucker rod.
Background technology
Along with the development of petroleum industry, deep-well, heavy oil wells exploitation get more and more, and it is complicated that the load of pumping unit becomes, and the rod parting accident often takes place in the oil field.Trace it to its cause, the exploitation of deep-well, the sucker rod roofbolt is long or have the holddown phenomenon, and the tensile load that sucker rod receives is big, causes rod broken, and in thickened oil recovery, the load of roofbolt is bigger.When adopting screw pump technology to recover the oil, sucker rod mainly bears high pulling torque load, and this torque load is concerning the sucker rod screw thread, and the torsion of button causes the tensile load of sucker rod screw thread, stress groove increasing in the generation, when surpassing its intensity, ruptures.These situation have a strong impact on the application life of oil production equipment, and screw pump is used in the part oil field, requires sucker rod can transmit the high torque performance.
Be product in the market, torsional strength is not required by the API standard production, as shown in Figure 1; Comprise second end of thread 22 that first sucker rod 1 that links together through box cupling 3 and second sucker rod, 2, the first sucker rods 1 are provided with first annular protrusion 11 and first end of thread, 12, the second sucker rods 2 that are threaded with box cupling 3 are provided with second annular protrusion 21 and are threaded with box cupling 3; Two end faces of box cupling 3 offset with the end face of first annular protrusion 11 and second annular protrusion 21 respectively; Have a very big intersegmental crack between first end of thread 12 and second end of thread 22, rely on screw thread and two end faces to bear torsion, even the rod collar 3 that has adopts taper thread; There is very big gap between first end of thread 12 and second end of thread 22 especially; Even two end faces of box cupling 3 do not lean on annular protrusion, bear torsion by screw thread fully, like this when screw bolt well uses; Torsional property and bonding strength all receive certain restriction, have influenced the application life of sucker rod greatly.
Summary of the invention
Technical problem to be solved by this invention is: a kind of antitorque sucker rod is provided, to solve the technical problem that the sucker rod torsional property is poor, application life is short.
For solving the problems of the technologies described above; Technical scheme of the present invention is: antitorque sucker rod; Comprise first sucker rod and second sucker rod that link together through box cupling; First end of thread that said first sucker rod is provided with first annular protrusion and is threaded with said box cupling, second end of thread that said second sucker rod is provided with second annular protrusion and is threaded with said box cupling, two end faces of said box cupling offset with the end face of said first annular protrusion and second annular protrusion respectively; The end face of said first end of thread and second end of thread offsets.
After having adopted technique scheme, the invention has the beneficial effects as follows:, increased place's stress point of sucker rod because the end face of first end of thread and second end of thread offsets; Make that the end face of screw thread, annular protrusion and the end of thread can both be stressed, improved the torsional property of sucker rod, during use; Sucker rod and box cupling are twisted tightly more, and the compressive stress that the end of thread of sucker rod receives is also big more, and sucker rod is lowered to oil well; When reciprocation cycle is recovered the oil, receive pulling force, offset the part compressive stress; Improve the stressing conditions of screw thread, prolonged the application life of sucker rod greatly.
Description of drawings
Fig. 1 is the structural representation of traditional sucker rod;
Fig. 2 is a structural representation of the present invention;
Among the figure: 1, first sucker rod, 11, first annular protrusion, 12, first end of thread, 2, second sucker rod, 21, second annular protrusion, 22, second end of thread, 3, box cupling.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
As shown in Figure 2; A kind of antitorque sucker rod; Comprise first sucker rod 1 and second sucker rod 2 that link together through box cupling 3; First end of thread 12 that first sucker rod 1 is provided with first annular protrusion 11 and is threaded with box cupling 3; Second end of thread 22 that second sucker rod 2 is provided with second annular protrusion 21 and is threaded with box cupling 3 is through the length tolerance of control box cupling 3 reach tolerances and control first end of thread 12 and second end of thread 22, when the box cupling 3 and first sucker rod 1 and second sucker rod 2 are tightened; Two end faces of box cupling 3 offset with the end face of first annular protrusion 11 and second annular protrusion 21 respectively, and the end face of first end of thread 12 and second end of thread 22 offsets.
During use; First sucker rod 1 and second sucker rod 2 are all tightened with box cupling 3, and first annular protrusion 11 and 21 whiles of second annular protrusion is also tight with the end face of box cupling 3, and the end face of first end of thread 12 and second end of thread 22 offsets; The end face of screw thread, annular protrusion and the end of thread carries simultaneously; Bearing surface increases, and back-off loosens the moment of resistance to be received the increase of rubbing surface and increase, and has improved antitorque and anti-loose ability greatly; The increase of bearing surface simultaneously, the stressed increase of screw thread is for guaranteeing the reliability of bonding strength; The reach that can extend, the precision parameter of control pitch accurately calculates the gap between screw thread; The end face that can guarantee the annular protrusion and the end of thread is simultaneously stressed; But do not change the versatility that original sucker rod connects, change the machining accuracy of screw thread stressed zone, improved bonding strength effectively.
The present invention is not limited to above-mentioned concrete embodiment, and those of ordinary skill in the art is from above-mentioned design, and without performing creative labour, all conversion of having done all drop within protection scope of the present invention.
Claims (1)
1. antitorque sucker rod; Comprise first sucker rod and second sucker rod that link together through box cupling; First end of thread that said first sucker rod is provided with first annular protrusion and is threaded with said box cupling; Second end of thread that said second sucker rod is provided with second annular protrusion and is threaded with said box cupling, two end faces of said box cupling offset with the end face of said first annular protrusion and second annular protrusion respectively; It is characterized in that: the end face of said first end of thread and second end of thread offsets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210355002.3A CN102828699B (en) | 2012-09-21 | 2012-09-21 | Anti-torsion sucker rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210355002.3A CN102828699B (en) | 2012-09-21 | 2012-09-21 | Anti-torsion sucker rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102828699A true CN102828699A (en) | 2012-12-19 |
| CN102828699B CN102828699B (en) | 2015-02-11 |
Family
ID=47331987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210355002.3A Active CN102828699B (en) | 2012-09-21 | 2012-09-21 | Anti-torsion sucker rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102828699B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104120984A (en) * | 2013-04-24 | 2014-10-29 | 成都科盛石油科技有限公司 | Resettable sucker rod assembly structure |
| CN104420837A (en) * | 2013-09-02 | 2015-03-18 | 深圳市百勤石油技术有限公司 | Method for preventing necking of oil pipes due to excessively high make-up torque |
| CN112227963A (en) * | 2020-10-28 | 2021-01-15 | 蒋东 | Anti-torsion sucker rod |
Citations (10)
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|---|---|---|---|---|
| US2133050A (en) * | 1936-06-17 | 1938-10-11 | Richard P Simmons | Sucker rod and combined coupling and torsion joint therefor |
| CN2367761Y (en) * | 1999-02-24 | 2000-03-08 | 张明 | Anti-drop single spinner for sucker rod |
| US20060125234A1 (en) * | 2003-09-24 | 2006-06-15 | Siderca S.A.I.C. | Hollow sucker rod connection with second torque shoulder |
| CN200968279Y (en) * | 2006-09-01 | 2007-10-31 | 山东九环石油机械有限公司 | Pole special for trapezium side-plug-in dropping stop screw pump well |
| CN201031626Y (en) * | 2007-06-01 | 2008-03-05 | 山东九环石油机械有限公司 | Super-high intensity side inserting type losing stop type anti-twist integral pumping rod |
| CN201059164Y (en) * | 2007-07-10 | 2008-05-14 | 滨州市远宇化工机械有限责任公司 | Novel torsion-resistant disconnecting-proof pumping rod |
| CN201193486Y (en) * | 2008-04-03 | 2009-02-11 | 内蒙古一机集团大地石油机械有限责任公司 | Torsion resistant ultrahigh strength anti-corrosive sucker rod |
| CN201513133U (en) * | 2009-09-29 | 2010-06-23 | 山东墨龙石油机械股份有限公司 | Back-off prevention self-locking sucker rod |
| CN102071880A (en) * | 2010-12-16 | 2011-05-25 | 葫芦岛龙源采油配套设备有限公司 | Anti-falling centering device for sucker rod |
| CN201953320U (en) * | 2011-01-18 | 2011-08-31 | 大庆航天三沃新技术产业有限责任公司 | Bending-prevention and twisting-prevention telescopic rotating joint of sucker rod |
-
2012
- 2012-09-21 CN CN201210355002.3A patent/CN102828699B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2133050A (en) * | 1936-06-17 | 1938-10-11 | Richard P Simmons | Sucker rod and combined coupling and torsion joint therefor |
| CN2367761Y (en) * | 1999-02-24 | 2000-03-08 | 张明 | Anti-drop single spinner for sucker rod |
| US20060125234A1 (en) * | 2003-09-24 | 2006-06-15 | Siderca S.A.I.C. | Hollow sucker rod connection with second torque shoulder |
| CN200968279Y (en) * | 2006-09-01 | 2007-10-31 | 山东九环石油机械有限公司 | Pole special for trapezium side-plug-in dropping stop screw pump well |
| CN201031626Y (en) * | 2007-06-01 | 2008-03-05 | 山东九环石油机械有限公司 | Super-high intensity side inserting type losing stop type anti-twist integral pumping rod |
| CN201059164Y (en) * | 2007-07-10 | 2008-05-14 | 滨州市远宇化工机械有限责任公司 | Novel torsion-resistant disconnecting-proof pumping rod |
| CN201193486Y (en) * | 2008-04-03 | 2009-02-11 | 内蒙古一机集团大地石油机械有限责任公司 | Torsion resistant ultrahigh strength anti-corrosive sucker rod |
| CN201513133U (en) * | 2009-09-29 | 2010-06-23 | 山东墨龙石油机械股份有限公司 | Back-off prevention self-locking sucker rod |
| CN102071880A (en) * | 2010-12-16 | 2011-05-25 | 葫芦岛龙源采油配套设备有限公司 | Anti-falling centering device for sucker rod |
| CN201953320U (en) * | 2011-01-18 | 2011-08-31 | 大庆航天三沃新技术产业有限责任公司 | Bending-prevention and twisting-prevention telescopic rotating joint of sucker rod |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104120984A (en) * | 2013-04-24 | 2014-10-29 | 成都科盛石油科技有限公司 | Resettable sucker rod assembly structure |
| CN104420837A (en) * | 2013-09-02 | 2015-03-18 | 深圳市百勤石油技术有限公司 | Method for preventing necking of oil pipes due to excessively high make-up torque |
| CN104420837B (en) * | 2013-09-02 | 2016-08-10 | 深圳市百勤石油技术有限公司 | A kind of method preventing oil pipe from causing footpath to be contracted because torque wrench moment is excessive |
| CN112227963A (en) * | 2020-10-28 | 2021-01-15 | 蒋东 | Anti-torsion sucker rod |
| CN112227963B (en) * | 2020-10-28 | 2022-07-05 | 蒋东 | Anti-torsion sucker rod |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102828699B (en) | 2015-02-11 |
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