CN203161113U - Sucker rod eccentric wear preventing device - Google Patents
Sucker rod eccentric wear preventing device Download PDFInfo
- Publication number
- CN203161113U CN203161113U CN 201320066278 CN201320066278U CN203161113U CN 203161113 U CN203161113 U CN 203161113U CN 201320066278 CN201320066278 CN 201320066278 CN 201320066278 U CN201320066278 U CN 201320066278U CN 203161113 U CN203161113 U CN 203161113U
- Authority
- CN
- China
- Prior art keywords
- piston
- sucker rod
- eccentric wear
- rod
- valve
- 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 - Fee Related
Links
Images
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model relates to a sucker rod eccentric wear preventing device, and belongs to the technical field of auxiliary production tools of pumping wells. The sucker rod eccentric wear preventing device comprises a working barrel, a piston, a travelling valve, an upper connection rod and a lower connection rod, wherein threads connected with an oil pipe are arranged at the upper end and the lower end of the working barrel, the piston is a cylinder, the upper end and the lower end of the piston are provided with threads and connected with the upper connection rod and the lower connection rod in a threaded manner, oil gas inlet and outlet channels are formed on a piston body, a valve seat is arranged at the upper end of the piston body, and the travelling valve is sleeved on the upper connection rod on the upper portion of the valve seat. The sucker rod eccentric wear preventing device has the advantages of capabilities of effectively preventing abrasion of a sucker rod and the oil pipe, protecting the oil pipe and the sucker rod, lowering borne load of an oil-well pump piston during upstroke, preventing underground fault caused by breakage of a valve cap on the piston and reducing working construction.
Description
Technical field
The utility model relates to the anti-eccentric wear device of a kind of sucker rod, belongs to rod-pumped well and produces the aid technical field.
Background technology
Present rod-pumped well for eccentric wear, generally adopt nylon sucker rod centralizers, it is coupled with spiral chimb and helical groove spiral by two lobe nylon conveyor screws, be stuck on the sucker rod body, make nylon centralizer and tube inner wall friction, the wearing and tearing of sucker rod to tube inner wall have been alleviated, the contact area of scroll and tube inner wall is big, the wearing and tearing of tube inner wall have been alleviated, but for the big serious eccentric wear well of hole deviation, because the abrasion resistance of nylon, toughness, impact resistance is limit, centralizer nylon block serious wear will take place at short notice, broken, cause tube inner wall eccentric wear crack, down-hole faults such as the stuck oil well pump piston of fragment have not only been damaged oil pipe, sucker rod, construction working amount also significantly increase.
The utility model content
The purpose of this utility model provides a kind of rod-pumped well and produces aid, not only solves the serious eccentric wear of oil pipe, sucker rod of rod-pumped well, can also effectively reduce oil well pump piston stroking upward load, prevents the piston fracture.
For addressing the above problem, the technical solution adopted in the utility model is:
A kind of sucker rod is prevented the eccentric wear device, comprise seating nipple, piston, travelling valve, upper connecting rod and lower connecting rod, the seating nipple upper/lower terminal is provided with the screw thread that is connected with oil pipe, piston is cylinder, the piston upper/lower terminal is provided with screw thread, and is threaded with upper connecting rod and lower connecting rod, has the oil gas access way on the body of piston, the upper end of the body of piston is provided with valve seat, and the upper connecting rod on its valve seat top is socketed with travelling valve.
Be evenly equipped with 3,4 or 5 oil gas access ways on the body of described piston.
The valve seat of described piston upper end is circular arc or taper, and the travelling valve bottom is the shape corresponding with the valve seat of piston upper end.
The beneficial effects of the utility model are: this device can prevent sucker rod, oil pipe wearing and tearing, protection oil pipe, sucker rod effectively; Can also alleviate the load that carries in the oil well pump piston stroking upward process, prevent that the fracture of valve cover on the piston from causing the down-hole fault, reduce job execution.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
The specific embodiment
As shown in Figure 1, the utility model embodiment comprises seating nipple 2, piston 4, travelling valve 3, upper connecting rod 1 and lower connecting rod 6, seating nipple 2 upper/lower terminals are provided with the screw thread that is connected with oil pipe, piston 4 is cylinder, piston 4 upper/lower terminals are provided with screw thread, and are threaded with upper connecting rod 1 and lower connecting rod 6, have oil gas access way 5 on the body of piston 4, the upper end of the body of piston 4 is provided with valve seat, and the upper connecting rod 1 on its valve seat top is socketed with travelling valve 3.
Be evenly equipped with 3,4 or 5 oil gas access ways 5 on the body of described piston 4.
The valve seat of described piston 4 upper ends is circular arc or taper, and travelling valve 3 bottoms are the shape corresponding with the valve seat of piston 4 upper ends.
During following pumping pipe string, earlier piston 4 is pulled out from seating nipple 2, seating nipple 2 is connected with oil pipe, is lowered to the interior projected depth of pit shaft as requested; Piston 4 is connected with sucker rod and is lowered to the position that matches with seating nipple 2 and gets final product.During opening well and making production, piston 4 is operation up and down reciprocatingly in seating nipple 2, plays the effect of setting upright sucker rod, so just can effectively prevent the wearing and tearing between oil pipe and the sucker rod; In the up process of sucker rod, in oil pipe under the gravity of fluid column, the oil gas access way 5 of travelling valve 3 descending closure pistons 4, piston 4 and travelling valve 3 bearing part liquid weights, to alleviate the head of liquid of bottom oil well pump piston, prevent that it from bearing excessive head of liquid and disconnected taking off taken place.The up power of fluid column when sucker rod is descending in the oil pipe is backed down travelling valve 3 automatically, and liquid is entered in the oil pipe, back and forth finishes oil pumping process.
Claims (3)
1. a sucker rod is prevented the eccentric wear device, comprise seating nipple (2), piston (4), travelling valve (3), upper connecting rod (1) and lower connecting rod (6), on the seating nipple (2), following two ends are provided with the screw thread that is connected with oil pipe, it is characterized in that: piston (4) is cylinder, on the piston (4), following two ends are provided with screw thread, and be threaded with upper connecting rod (1) and lower connecting rod (6), have oil gas access way (5) on the body of piston (4), the upper end of the body of piston (4) is provided with valve seat, and the upper connecting rod (1) on its valve seat top is socketed with travelling valve (3).
2. the anti-eccentric wear device of sucker rod according to claim 1 is characterized in that: be evenly equipped with 3,4 or 5 oil gas access ways (5) on the body of described piston (4).
3. sucker rod according to claim 1 and 2 is prevented the eccentric wear device, it is characterized in that: the valve seat of described piston (4) upper end is circular arc or taper, and travelling valve (3) bottom is the shape corresponding with the valve seat of piston (4) upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320066278 CN203161113U (en) | 2013-02-05 | 2013-02-05 | Sucker rod eccentric wear preventing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320066278 CN203161113U (en) | 2013-02-05 | 2013-02-05 | Sucker rod eccentric wear preventing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203161113U true CN203161113U (en) | 2013-08-28 |
Family
ID=49022306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320066278 Expired - Fee Related CN203161113U (en) | 2013-02-05 | 2013-02-05 | Sucker rod eccentric wear preventing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203161113U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104563907A (en) * | 2014-12-26 | 2015-04-29 | 中国石油天然气股份有限公司 | Sucker rod eccentric wear prevention device and sucker rod thereof |
-
2013
- 2013-02-05 CN CN 201320066278 patent/CN203161113U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104563907A (en) * | 2014-12-26 | 2015-04-29 | 中国石油天然气股份有限公司 | Sucker rod eccentric wear prevention device and sucker rod thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104314527A (en) | Hydraulic pumping unit with power-assisted cylinder and oil production method of hydraulic pumping unit | |
| CN204299842U (en) | A kind of standing valve offset suction pump | |
| CN203161113U (en) | Sucker rod eccentric wear preventing device | |
| CN202768405U (en) | All-metal screw rod type oil-well pump for deep well | |
| CN203670171U (en) | Annular-valve type anti-cavitation oil well pump | |
| CN202091177U (en) | Multifunctional fixing valve of oil pump | |
| CN102777388A (en) | All-metal screw oil well pump for deep well | |
| CN103742108B (en) | The way to play for time of underground work well liquid balance and multifunctional buffer stream valve | |
| CN203362468U (en) | Hydraulic feedback plunger oil well pump | |
| CN105715523B (en) | The anti-sand setting small displacement oil well pump of self-cleaning type | |
| CN203347754U (en) | Well mouth hydraulic compensation device of sucker rod | |
| CN115111146A (en) | Anti-abrasion load-shedding oil pumping device of three-dimensional curved well and using method thereof | |
| CN204851192U (en) | Prevent grinding partially energy -saving hydraulic row and adopt device | |
| CN201187437Y (en) | Single tube hydraulic oil well pump for resetting yield fluid pillar gravity | |
| CN206592107U (en) | Down-hole oil production elastic expansion plunger | |
| CN201496078U (en) | Top cover injection type single hydraulic prop | |
| CN106996274B (en) | A kind of righting structure of anti-sucker rod pumping pump plunger eccentric wear | |
| CN2528961Y (en) | Underground hydraulic oil well pump | |
| CN202500751U (en) | Tertiary oil recovery oil well pump | |
| CN205172529U (en) | Can lubricate abrasionproof oil jack | |
| CN201031666Y (en) | Synergistic pumping unit | |
| CN2547904Y (en) | Deep-extracting oil-well pump | |
| CN204532798U (en) | A kind of oil-well pump oil inlet valve | |
| CN202732297U (en) | Rodless hydraulic feedback oil pump | |
| CN114562448B (en) | Multi-section plunger oil pump for pumping thickened oil |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130828 Termination date: 20160205 |