CN102434114A - Anti-tripping sucker rod - Google Patents
Anti-tripping sucker rod Download PDFInfo
- Publication number
- CN102434114A CN102434114A CN2012100046434A CN201210004643A CN102434114A CN 102434114 A CN102434114 A CN 102434114A CN 2012100046434 A CN2012100046434 A CN 2012100046434A CN 201210004643 A CN201210004643 A CN 201210004643A CN 102434114 A CN102434114 A CN 102434114A
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- CN
- China
- Prior art keywords
- anticreep
- sucker rod
- tetragonal body
- fixedly connected
- screw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The invention relates to devices of an oil field, in particular to an anti-tripping sucker rod applied to an oil pumping unit. The anti-tripping sucker rod comprises a sucker rod body, a lower tetragonal body, an upper tetragonal body, a lower joint and a coupling; the lower tetragonal body and the upper tetragonal body are fixedly connected with two ends of the sucker rod body, the lower joint is fixedly connected with the lower end of the lower tetragonal body, the coupling is fixedly connected with the upper end of the upper tetragonal body, the lower joint is provided with an external thread, the coupling is provided with an internal thread, the lower end of the lower joint is fixedly connected with an anti-releasing cylinder, the anti-releasing cylinder is provided with an annular anti-releasing slot, an anti-releasing cylinder hole is arranged in an inner cavity of the coupling, the anti-releasing cylinder hole is matched with the anti-releasing cylinder in the length and the diameter, a screw hole is radially arranged on the outer wall of the anti-releasing cylinder hole, and an anti-releasing screw is arranged in the screw hole. The anti-tripping sucker rod disclosed by the invention is further provided with an anti-releasing screw clamped in the anti-releasing cylinder slot, besides a bolt which is used for connection, thus the sucker rod can not undergo a tripping situation under influence of any alternating moments.
Description
Technical field
The present invention relates to a kind of oil field equipment, is a kind of anti-dropout sucker rod that is used on the oil pumper specifically.
Background technology
At present, in the oil producing operation in oil field, be that the oil pumper on ground is connected to the down-hole through sucker rod oil well pump recovers the oil through pumping.One end of sucker rod has internal thread, and the other end has external screw thread, and many sucker rods are through the end to end down-hole that reaches thousands of meters of hundreds ofs of screw thread.In the dark oil well of several kms, because pit shaft and off-gauge straight line, sucker rod and ground out of plumb; When sucker rod moves up and down; Receive the influence of factors such as frictional resistance, liquid granularity, fluid column and the sucker rod gravity of oil well pump piston in tube, the friction of off plumb shaft in wall, sucker rod receives alternately and being stretched, compresses and twist and produces alternation moment, makes rod connector move back button and come off easily; Cause equipment fault or damage in the well, thereby need the stopping production workover treatment.Though the technician is preventing to have taked many measures on the pumping rod disengaging, all be on the box cupling that sucker rod connects, to take measures, fundamentally do not solve the problem of pumping rod disengaging.
Summary of the invention
The present invention is exactly in order to solve the problem of above-mentioned existence, provide a kind of simple in structure, interconnect and the anti-dropout sucker rod of not threading off.
For achieving the above object; The present invention adopts following technical scheme: a kind of anti-dropout sucker rod according to the invention comprises the oil pumping body of rod, be fixedly connected on the following tetragonal body and the last tetragonal body at oil pumping body of rod two ends, be fixedly connected on down the tetragonal body lower end lower contact, be fixedly connected on the box cupling on the tetragonal body; It is characterized in that: have external screw thread in the said lower contact; Said box cupling is provided with internal thread, and the lower end of lower contact is fixedly connected with the anticreep cylinder, and said anticreep cylinder is provided with the anticreep groove of ring-type; In the inner chamber of box cupling, be provided with the anticreep cylindrical hole; The length of said anticreep cylindrical hole and diameter and anticreep cylinder are complementary, and radially are provided with screw hole on the outer wall of anticreep cylindrical hole, and the anticreep screw is installed in the said screw hole.
Said anticreep screw is 1-5, be evenly distributed on the anticreep cylindrical hole around.
Be provided with step between tetragonal body and the lower contact down, said step is a cylinder, and the external diameter of step equates with the external diameter of box cupling.
This sucker rod is except that adopting the bolt connection, and the anticreep cylinder injects in the anticreep cylindrical hole, tightens the anticreep screw, and the anticreep screw is stuck in the anticreep cylinder groove.Like this, no matter sucker rod receives the influence of which kind of alternation moment, because of the anticreep cylinder has the effect of anticreep double-screw bolt, the phenomenon of can not threading off.
Description of drawings
Fig. 1 is the structural representation of one embodiment of the invention.
The specific embodiment
As shown in Figure 1; A kind of anti-dropout sucker rod of the present invention comprises the oil pumping body of rod 6, be fixedly connected on the following tetragonal body 7 and the last tetragonal body 5 at the oil pumping body of rod 6 two ends, be fixedly connected on down tetragonal body 7 lower ends lower contact 11, be fixedly connected on the box cupling 1 of tetragonal body 5 upper ends; The oil pumping body of rod 6 is a cylinder; The cross section of following tetragonal body 7 and last tetragonal body 5 is a square, is to go up the shackle clamped position.Have external screw thread 8 in the said lower contact 11; Said box cupling 1 is provided with internal thread 2, and the lower end of lower contact 11 is fixedly connected with anticreep cylinder 9, and said anticreep cylinder 9 is provided with the anticreep groove 10 of ring-type; In the inner chamber of box cupling 1, be provided with anticreep cylindrical hole 3; The length of said anticreep cylindrical hole 3 and diameter and anticreep cylinder 9 are complementary, and radially are provided with screw hole on the outer wall of anticreep cylindrical hole 3, and anticreep screw 4 is installed in the said screw hole.Said anticreep screw 4 can be 1-5, be evenly distributed on anticreep cylindrical hole 3 around.
In addition, between tetragonal body 7 and the lower contact 11 step 12 can also be set down, said step 12 is a cylinder, and the external diameter of step 12 equates with the external diameter of box cupling 1.
When in oil well, installing, the lower contact 11 of sucker rod down, box cupling 1 up, according to the needs of well depth, the combination that joins end to end of some sucker rods is connected with oil well pump bottom, topmost is connected with the total bar of sucker rod.Before sucker rod connects; Anticreep screw 4 is unclamped, abdicate the space of anticreep cylindrical hole 3, the lower contact 11 of next root sucker rod is connected with the box cupling 1 of a last sucker rod; Anticreep cylinder 9 gets in the anticreep cylindrical hole 3; Tighten anticreep screw 4 then, anticreep screw 4 gets in the anticreep groove 10, can realize the anti-dropout function of sucker rod.
Claims (3)
1. anti-dropout sucker rod; Comprise the oil pumping body of rod (6), be fixedly connected on the oil pumping body of rod (6) two ends following tetragonal body (7) and last tetragonal body (5), be fixedly connected on down tetragonal body (7) lower end lower contact (11), be fixedly connected on the box cupling (1) on the tetragonal body (5); It is characterized in that: have external screw thread (8) in the said lower contact (11); Said box cupling (1) is provided with internal thread (2); The lower end of lower contact (11) is fixedly connected with anticreep cylinder (9); Said anticreep cylinder (9) is provided with the anticreep groove (10) of ring-type, in the inner chamber of box cupling (1), is provided with anticreep cylindrical hole (3), and the length of said anticreep cylindrical hole (3) and diameter and anticreep cylinder (9) are complementary; Radially be provided with screw hole on the outer wall of anticreep cylindrical hole (3), anticreep screw (4) is installed in the said screw hole.
2. a kind of anti-dropout sucker rod according to claim 1, it is characterized in that: said anticreep screw (4) is 1-5, be evenly distributed on anticreep cylindrical hole (3) around.
3. a kind of anti-dropout sucker rod according to claim 1 and 2; It is characterized in that: be provided with step (12) between tetragonal body (7) and the lower contact (11) down; Said step (12) is a cylinder, and the external diameter of step (12) equates with the external diameter of box cupling (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100046434A CN102434114A (en) | 2012-01-10 | 2012-01-10 | Anti-tripping sucker rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100046434A CN102434114A (en) | 2012-01-10 | 2012-01-10 | Anti-tripping sucker rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102434114A true CN102434114A (en) | 2012-05-02 |
Family
ID=45982439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100046434A Pending CN102434114A (en) | 2012-01-10 | 2012-01-10 | Anti-tripping sucker rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102434114A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100999982A (en) * | 2007-01-09 | 2007-07-18 | 杜文刚 | Connecting hoop presetting sucker rod and mfg. method thereof |
| CN200968182Y (en) * | 2006-11-20 | 2007-10-31 | 张建民 | Double sealing anti-drop temperature conducting pumping rod |
| CN101144371A (en) * | 2007-11-02 | 2008-03-19 | 大港油田集团有限责任公司 | Pumping rod connecting device |
| 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 |
| CN201106411Y (en) * | 2007-11-02 | 2008-08-27 | 大港油田集团有限责任公司 | Connector for sucker rod |
| CN201214987Y (en) * | 2008-05-14 | 2009-04-01 | 东营市铁人抽油杆有限公司 | Torsion sucker rod |
| WO2010008956A2 (en) * | 2008-07-15 | 2010-01-21 | Baker Hughes Incorporated | Pressure orienting swivel |
| US20100096849A1 (en) * | 2005-07-22 | 2010-04-22 | Baker Hughes Incorporated | Internal Release Connector and Method |
| CN201507247U (en) * | 2009-09-16 | 2010-06-16 | 杨立民 | Sucker rod centralizer |
| CN201531409U (en) * | 2009-06-11 | 2010-07-21 | 山东九环石油机械有限公司 | Dedicated ultra-high strength plug-in type pumping rod for screw pumps |
| CN202431217U (en) * | 2012-01-10 | 2012-09-12 | 陈媛 | Anti-tripping oil pumping rod |
-
2012
- 2012-01-10 CN CN2012100046434A patent/CN102434114A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100096849A1 (en) * | 2005-07-22 | 2010-04-22 | Baker Hughes Incorporated | Internal Release Connector and Method |
| CN200968182Y (en) * | 2006-11-20 | 2007-10-31 | 张建民 | Double sealing anti-drop temperature conducting pumping rod |
| CN100999982A (en) * | 2007-01-09 | 2007-07-18 | 杜文刚 | Connecting hoop presetting sucker rod and mfg. method thereof |
| 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 |
| CN101144371A (en) * | 2007-11-02 | 2008-03-19 | 大港油田集团有限责任公司 | Pumping rod connecting device |
| CN201106411Y (en) * | 2007-11-02 | 2008-08-27 | 大港油田集团有限责任公司 | Connector for sucker rod |
| CN201214987Y (en) * | 2008-05-14 | 2009-04-01 | 东营市铁人抽油杆有限公司 | Torsion sucker rod |
| WO2010008956A2 (en) * | 2008-07-15 | 2010-01-21 | Baker Hughes Incorporated | Pressure orienting swivel |
| CN201531409U (en) * | 2009-06-11 | 2010-07-21 | 山东九环石油机械有限公司 | Dedicated ultra-high strength plug-in type pumping rod for screw pumps |
| CN201507247U (en) * | 2009-09-16 | 2010-06-16 | 杨立民 | Sucker rod centralizer |
| CN202431217U (en) * | 2012-01-10 | 2012-09-12 | 陈媛 | Anti-tripping oil pumping rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120502 |