CN202064854U - Vibration absorber of sucker rod of oil well - Google Patents
Vibration absorber of sucker rod of oil well Download PDFInfo
- Publication number
- CN202064854U CN202064854U CN2011201203081U CN201120120308U CN202064854U CN 202064854 U CN202064854 U CN 202064854U CN 2011201203081 U CN2011201203081 U CN 2011201203081U CN 201120120308 U CN201120120308 U CN 201120120308U CN 202064854 U CN202064854 U CN 202064854U
- Authority
- CN
- China
- Prior art keywords
- rod
- well
- sucker rod
- vibration absorber
- piston
- 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
A vibration absorber of a sucker rod of an oil well is characterized by comprising a cylinder drum (1), a lock cap (3) and a lower connector (4), wherein an upper connector is arranged at the top of the short pipe shaped cylinder drum (1), a long-pole-shaped piston rod (2) is installed in the interior of the cylinder drum (1) through the lock cap (3), the upper end of the piston rod (2) is a cylindrical piston, and the lower end of the piston rod (2) extends out of a center hole of the lock cap (3) and is connected with the lower connector (4). The vibration absorber of the sucker rod of the oil well is simple in structure, reliable in work, and can release alternating load borne by the sucker rod when used in oil field deep well or complex oil pumping production, thereby reducing falling-off accidents underground.
Description
Technical field: the utility model relates to a kind of oil field downhole tool, especially for a kind of well rod damper of pumpingh well.
Background technology: before the utility model, pump at deep-well or complicated well and produce in each oil field, and the rod string of down-hole is crossed macrolesion and caused break-off accident owing to suffered fluctuating load through regular meeting.
Summary of the invention: the purpose of this utility model is: producing for the oil pumping of oil field deep well or complicated well provides a kind of well rod damper, because the piston rod on this device has rotation and shock-absorbing function, pump at deep-well or complicated well and can alleviate the suffered fluctuating load of rod string in producing, thereby reduce the generation of down-hole break-off accident.
The purpose of this utility model realizes by following measure: a kind of well rod damper, comprise cylinder barrel, lock nut, lower contact, the cylinder barrel that it is characterized in that the short tube shape of top band top connection, the piston rod that a upper end is the elongated rod shape of cylindrical piston is installed by lock nut in its inside, piston-rod lower end stretches out from the centre bore of lock nut, and is connected with lower contact.
Simple in structure, the reliable operation of the utility model is used for the oil pumping of oil field deep well or complicated well and produces, and can alleviate the suffered fluctuating load of rod string, thereby reduce the generation of down-hole break-off accident.
Description of drawings: Fig. 1 is the structural representation of well rod damper.
The specific embodiment: the well rod damper is to be made of cylinder barrel 1, piston rod 2, lock nut 3, lower contact 4 etc., the cylinder barrel 1 of the short tube shape of top band top connection, it is the piston rod 2 of the elongated rod shape of cylindrical piston that a upper end is installed by lock nut 3 in its inside, stretch out from the centre bore of lock nut 3 piston rod 2 lower ends, and be connected with lower contact 4.
The operating principle and the using method of well rod damper are: inject earlier hydraulic oil to cylinder barrel 1 in, top connection by its top and lower contact 4 are installed on this device on the rod string also under the lower going-into-well again; In oil pumping is produced,, thereby reduce the generation of down-hole break-off accident because the rotation and the shock-absorbing function of piston rod 2 can be alleviated the suffered fluctuating load of rod string.
Claims (1)
1. well rod damper, comprise cylinder barrel, lock nut, lower contact, it is characterized in that: the cylinder barrel of the short tube shape of top band top connection, the piston rod that a upper end is the elongated rod shape of cylindrical piston is installed by lock nut in its inside, piston-rod lower end stretches out from the centre bore of lock nut, and is connected with lower contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201203081U CN202064854U (en) | 2011-04-22 | 2011-04-22 | Vibration absorber of sucker rod of oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201203081U CN202064854U (en) | 2011-04-22 | 2011-04-22 | Vibration absorber of sucker rod of oil well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202064854U true CN202064854U (en) | 2011-12-07 |
Family
ID=45058722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201203081U Expired - Lifetime CN202064854U (en) | 2011-04-22 | 2011-04-22 | Vibration absorber of sucker rod of oil well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202064854U (en) |
-
2011
- 2011-04-22 CN CN2011201203081U patent/CN202064854U/en not_active Expired - Lifetime
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111207 |