CN201246111Y - Anti-drop weighted pumping rod - Google Patents
Anti-drop weighted pumping rod Download PDFInfo
- Publication number
- CN201246111Y CN201246111Y CNU2008200274552U CN200820027455U CN201246111Y CN 201246111 Y CN201246111 Y CN 201246111Y CN U2008200274552 U CNU2008200274552 U CN U2008200274552U CN 200820027455 U CN200820027455 U CN 200820027455U CN 201246111 Y CN201246111 Y CN 201246111Y
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- CN
- China
- Prior art keywords
- weighted lever
- rod
- cylinder
- male thread
- pin threads
- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses an anti-fallout weight sucker rod; pin threads are formed at the two ends of an upper weighting rod and a lower weighting rod; a semi-cylinder is arranged outside the pin threads of the upper weighting rod; a semi-cylinder is arranged outside the pin threads of the lower weighting rod; the two semi-cylinders combine a cylinder; a collar is connected with the pin threads of the upper and the lower weighting rods; the maximum external diameter of the upper and the lower weighting rods is larger than Phi 32; a cage nut is connected on the pin threads of the lower weighting rod; a small diameter section is arranged below the pin threads of the lower weighting rod; and the diameter of the small diameter section is smaller than the small diameter of the inner threads of the collar. After combining the cylinder and being integrated with the collar, the semi-cylinder respectively on the upper weighting rod and the lower weighting rod cannot mutually rotate, so that no tripping problem exists; and the sucker rod is suitable for being used in inclined shafts, deep wells and horizontal wells with a large alternating range, can increase the production period of an oil well, and improves the economic benefits of the oil well.
Description
One, technical field
The utility model belongs to the equipment of oil field oil pumping usefulness, is a kind of anticreep sinker bar.
Two, background technology
In inclined shaft, deep-well, horizontal well oil pumping because sucker rod is big with the oil pipe contact force, friction acutely, the suffered pressure alternation degree of sucker rod is big, sucker rod bottom bend Qu Yanchong.In order to alleviate bottom rod sag problem, the sucker rod bottom of being everlasting connects weighted lever, but common weighted lever is prone to problems such as dropout when using on inclined shaft, deep-well, horizontal well, cause the oil well production cycle short, the oil well deficiency in economic performance.
Three, summary of the invention
The purpose of this utility model is a kind of anticreep sinker bar of design, overcomes the deficiencies in the prior art, and it is used on inclined shaft, deep-well, horizontal well, improves the oil well production cycle.
The purpose of this utility model has been achieved in that box cupling, there is male thread at last weighted lever, following weighted lever two ends, outside the last weighted lever male thread semicolumn is arranged, outside the following weighted lever male thread semicolumn is arranged, semicolumn, the synthetic cylinder of semicolumn, box cupling connects with the male thread of last weighted lever, following weighted lever, and the maximum outside diameter of last weighted lever, following weighted lever is greater than φ 32.
Be connected with lock nut on the male thread of following weighted lever.
Under the male thread of following weighted lever reduced diameter section is arranged, the diameter of reduced diameter section is less than the internal thread path of box cupling.
The beneficial effects of the utility model are: can not rotate mutually after upward synthetic cylinder of semicolumn on weighted lever, the following weighted lever and box cupling are connected into one, there is not the dropout problem, be adapted at using in the big inclined shaft of alternation amplitude, deep-well, the horizontal well, can increase the oil well production cycle, improve the oil well economic benefit.
Four, description of drawings
Accompanying drawing 1 is the assembling drawing of the utility model embodiment.
Accompanying drawing 2 is A-A place sectional drawings in the accompanying drawing 1.
Five, the specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described.
Form by last weighted lever 1, box cupling 2, lock nut 5, there is male thread at following weighted lever 7 two ends, outside last weighted lever 1 male thread semicolumn 3 is arranged, outside following weighted lever 7 male threads semicolumn 4 is arranged, semicolumn 3, semicolumn 4 synthetic cylinders, box cupling 2 connects with the male thread of last weighted lever 1, following weighted lever 7, the maximum outside diameter of last weighted lever 1, following weighted lever 7 is greater than φ 32, diameter is big, and weight is big, increases the weight of effective.Be connected with lock nut 5 on the male thread of following weighted lever 7, make its connection more firm.Reduced diameter section 6 is arranged under the male thread of following weighted lever 7, and the diameter of reduced diameter section 6 is less than the internal thread path of box cupling 2, and the male thread of being convenient to box cupling 2,1 time weighted lever 7 of lock nut 5 and last weighted lever connects.
Claims (3)
1, a kind of anticreep sinker bar, box cupling (2) is arranged, it is characterized in that: upward there is male thread at weighted lever (1), following weighted lever (7) two ends, outside last weighted lever (1) male thread semicolumn (3) is arranged, outside following weighted lever (7) male thread semicolumn (4) is arranged, semicolumn (3), the synthetic cylinder of semicolumn (4), box cupling (2) connects with the male thread of last weighted lever (1), following weighted lever (7), and the maximum outside diameter of last weighted lever (1), following weighted lever (7) is greater than φ 32.
2, anticreep sinker bar according to claim 1 is characterized in that: be connected with lock nut (5) on the male thread of following weighted lever (7).
3, anticreep sinker bar according to claim 1 is characterized in that: reduced diameter section (6) is arranged under the male thread of following weighted lever (7), and the diameter of reduced diameter section (6) is less than the internal thread path of box cupling (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200274552U CN201246111Y (en) | 2008-09-06 | 2008-09-06 | Anti-drop weighted pumping rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200274552U CN201246111Y (en) | 2008-09-06 | 2008-09-06 | Anti-drop weighted pumping rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201246111Y true CN201246111Y (en) | 2009-05-27 |
Family
ID=40729931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200274552U Expired - Lifetime CN201246111Y (en) | 2008-09-06 | 2008-09-06 | Anti-drop weighted pumping rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201246111Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101701511B (en) * | 2009-09-29 | 2012-01-25 | 山东墨龙石油机械股份有限公司 | Sucker rod anti-tripping connecting device and manufacturing method thereof |
-
2008
- 2008-09-06 CN CNU2008200274552U patent/CN201246111Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101701511B (en) * | 2009-09-29 | 2012-01-25 | 山东墨龙石油机械股份有限公司 | Sucker rod anti-tripping connecting device and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANDONG SHOUGUANG KUNLONG PETROLEUM MACHINERY CO. Free format text: FORMER NAME: KUNLONG PETROLEUM MACHINERY CO., LTD., SHOUGUANG CITY |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 262711 Shandong province Shouguang Development Zone East First Street Yuanfeng Kunlong Petroleum Machinery Co. Ltd. Patentee after: Shandong Shouguang Kunlong Petroleum Machinery Co., Ltd, Address before: 262711 Shandong province Shouguang Development Zone East First Street Yuanfeng Kunlong Petroleum Machinery Co. Ltd. Patentee before: Shouguang Kunlong Petroleum Machinery Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20090527 |
|
| CX01 | Expiry of patent term |