CN206785322U - A kind of righting weighted lever - Google Patents
A kind of righting weighted lever Download PDFInfo
- Publication number
- CN206785322U CN206785322U CN201720698447.XU CN201720698447U CN206785322U CN 206785322 U CN206785322 U CN 206785322U CN 201720698447 U CN201720698447 U CN 201720698447U CN 206785322 U CN206785322 U CN 206785322U
- Authority
- CN
- China
- Prior art keywords
- weighted lever
- centralizer
- circlip
- sucker rod
- screw thread
- 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
Landscapes
- Earth Drilling (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
A kind of righting weighted lever, including weighted lever, centralizer, there is top connection on weighted lever, lower contact, top connection, there is the sucker rod screw thread supporting with roofbolt in lower contact, the bottom of described sucker rod screw thread pushes away bearing surface and pipe wrench card side, screw thread can be tightened, several centralizers are uniformly set with weighted lever, install circlip in the upper end of centralizer, the lower circlip of lower end installation of centralizer, upper circlip, the inwall of lower circlip is sticked into the annular groove on weighted lever, centralizer is set not slided on weighted lever, the bottom of annular groove on weighted lever is circular arc, on the top of weighted lever, rod elevator construction section is set, installed in rod string bottom weighted lever will not unstability bending, improve the stability of roofbolt, abrasion can be reduced.Therefore, it can effectively play a part of preventing sucker rod from damaging with oil pipe eccentric wear, extend the service life and oil well repair free period of sucker rod and oil pipe, improve pump efficiency and machine adopts efficiency, increase oil well output.
Description
Technical field
The oil recovery downhole hardware of petroleum industry is the utility model is related to, is the exacerbation oil pumping for preventing rod sag from wearing
Bar, specifically a kind of righting weighted lever.
Background technology
In sucker-rod pumping system, whether straight well or inclined shaft, R a T are all the relative fortune in contact
It is dynamic, therefore, there is eccentric wear, particularly deep-well and inclined shaft between sucker rod and oil pipe, hold very much when sucker rod is descending in oil pipe
, there is serious sucker rod and oil pipe eccentric wear problem in easy unstability bending.Oil pipe and sucker rod is seted to be led from using after producing eccentric wear
Oil well operation is caused, oil well repair free period is short, increases operating cost, increase rod tube consumption, the oil well off-time is more, reduces crude oil production
Amount.To avoid the occurrence of oil pipe, sucker rod partial wear damages problem, frequently with oil pipe, sucker rod anti-abrasion device on oil recovery technique, but due to
Do not solve the problems, such as the descending unstability bending of sucker rod, sucker rod serious abrasion still occurs with oil pipe.On oil recovery technique also
Weighted lever is employed in the bottom of roofbolt, for preventing roofbolt from bending, but the length of weighted lever can also be lost in 6m or so, itself
, there is the problem of weighted lever wears with oil pipe in steady bending.
The content of the invention
The purpose of this utility model is a kind of righting weighted lever of design, avoids sucker rod unstability in oil pipe from bending, prevents
Sinker bar and oil pipe eccentric wear.
What the purpose of this utility model was realized in：Including weighted lever, centralizer, have on weighted lever top connection, under connect
Head, there is the sucker rod screw thread supporting with roofbolt in described top connection, lower contact, the bottom of described sucker rod screw thread, which pushes away, holds
Face and pipe wrench card side, can tighten screw thread, and several centralizers are uniformly set with weighted lever, and bullet is installed in the upper end of centralizer
Property back-up ring, the lower circlip of lower end installation of centralizer, the ring that upper circlip, the inwall of lower circlip are sticked on weighted lever
In shape groove, centralizer is set not slided on weighted lever, the bottom of the annular groove on weighted lever is circular arc, on the top of weighted lever
Rod elevator construction section, a diameter of 22-26mm of described rod elevator construction section are set.
The beneficial effects of the utility model are：Several centralizers are uniformly set with weighted lever, centralizer is not in weighted lever
Upper slip, make installed in rod string bottom weighted lever will not unstability bending, improve the stability of roofbolt, it is possible to reduce mill
Damage.Therefore, it can effectively play a part of preventing sucker rod from damaging with oil pipe eccentric wear, extend the service life of sucker rod and oil pipe
And oil well repair free period, improve pump efficiency and machine adopts efficiency, increase oil well output, there is significant economic benefit.
Brief description of the drawings
Fig. 1 is the utility model kind embodiment installation diagram.
Fig. 2 is that the sectional view at centralizer is installed in Fig. 1.
Embodiment
Embodiment of the present utility model is illustrated below in conjunction with the accompanying drawings.
As illustrated, embodiment of the present utility model includes weighted lever 3, upper circlip 4, centralizer 5, lower elasticity gear
Enclose, have top connection 1, lower contact 7 on weighted lever 3, there is the sucker rod spiral shell supporting with roofbolt in described top connection 1, lower contact 7
Line, the bottom of described sucker rod screw thread push away bearing surface and pipe wrench card side, can tighten screw thread（It is connected with sucker rod in well）,
Several centralizers 5 are uniformly set with weighted lever 3, circlip 4, the lower end installation of centralizer 5 are installed in the upper end of centralizer 5
Lower circlip 6, upper circlip 4, the inwall of lower circlip 6 are sticked into the annular groove on weighted lever 3, make centralizer 5 not
Slided on weighted lever 3, the bottom of the annular groove on weighted lever 3 is circular arc, stress concentration caused by reducing fluting, avoids adding
Weight bar 3 is broken, and rod elevator construction section 2, the diameter of described rod elevator construction section 2 are set on the top of weighted lever 3
For 22-26mm, it can be hung with existing sucker rod on weighted lever 3, be easy to sling G.I.H.
Upper circlip 4, lower circlip 6 are split ring, can be disassembled from weighted lever 3, so as to by righting
Device 5 is taken off from weighted lever 3, and therefore, the utility model can repair reuse.
Claims (1)
1. a kind of righting weighted lever, including weighted lever（3）, centralizer（5）, weighted lever（3）On have top connection（1）, lower contact
（7）, described top connection（1）, lower contact（7）On have the sucker rod screw thread supporting with roofbolt, the bottom of described sucker rod screw thread
End pushes away bearing surface and pipe wrench card side, can tighten screw thread, it is characterized in that：In weighted lever（3）On be uniformly set with several centralizers
（5）, centralizer（5）Upper end install circlip（4）, centralizer（5）The lower circlip of lower end installation（6）, upper elasticity
Back-up ring（4）, lower circlip（6）Inwall stick into weighted lever（3）On annular groove in, make centralizer（5）Not in weighted lever（3）
Upper slip, weighted lever（3）On the bottom of annular groove be circular arc, in weighted lever（3）Top set rod elevator install
Section (2), a diameter of 22-26mm of described rod elevator construction section (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720698447.XU CN206785322U (en) | 2017-06-16 | 2017-06-16 | A kind of righting weighted lever |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720698447.XU CN206785322U (en) | 2017-06-16 | 2017-06-16 | A kind of righting weighted lever |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206785322U true CN206785322U (en) | 2017-12-22 |
Family
ID=60717230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720698447.XU Expired - Fee Related CN206785322U (en) | 2017-06-16 | 2017-06-16 | A kind of righting weighted lever |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206785322U (en) |
-
2017
- 2017-06-16 CN CN201720698447.XU patent/CN206785322U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206785322U (en) | A kind of righting weighted lever | |
| CN201250618Y (en) | Magnetic support pumping rod centralizer | |
| CN213360061U (en) | Special anchor for screw pump | |
| CN201377294Y (en) | Righting abrasion-proof sucker-rod coupling | |
| CN101839115A (en) | Centralizer depending on well crude oil lubrication | |
| CN115111146A (en) | Anti-abrasion load-shedding oil pumping device of three-dimensional curved well and using method thereof | |
| CN205689134U (en) | The cladding sucker rod that can promote | |
| CN201650150U (en) | Novel elastically-supported wear-resistant and wear-reducing pair | |
| CN200971754Y (en) | Partial abrasion protection sucker rod | |
| CN202483473U (en) | Eccentric-abrasion-proof automatic centering and centralizing device of oil sucking rod | |
| CN202073509U (en) | Pumping rod protector | |
| CN2854054Y (en) | Device for preventing slanting abrasion of frictionl block centralising tube | |
| CN201031631Y (en) | Rotary corrector for sucker rod | |
| CN201818249U (en) | Positioning anti-eccentric wear device | |
| CN202767905U (en) | Eccentric wear resistant sucker-rod string | |
| CN202055774U (en) | Sucker rod centralizer capable of proofing disconnection and eccentric wear | |
| CN202073508U (en) | Positioning eccentric wear prevention device | |
| CN202039791U (en) | Built-in fixed sucker rod centralizer | |
| CN2929143Y (en) | Anti-bias wear oil pumping rod | |
| CN205558831U (en) | Two -way protection eccentric wear prevention device of pipe pole | |
| CN201306131Y (en) | Wear-resistant device of sucker rod | |
| CN201306125Y (en) | Corrosion prevention sucker rod abrasion resistance pair | |
| CN201526286U (en) | Sucker rod centralizer | |
| CN201924843U (en) | Magnetic supporting sucker rod centering device | |
| CN2784574Y (en) | Rotary centralizer for sucker rod |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171222 Termination date: 20180616 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |