CN206338040U - A kind of cladding sucker rod for preventing clad from bouncing back - Google Patents
A kind of cladding sucker rod for preventing clad from bouncing back Download PDFInfo
- Publication number
- CN206338040U CN206338040U CN201621388431.0U CN201621388431U CN206338040U CN 206338040 U CN206338040 U CN 206338040U CN 201621388431 U CN201621388431 U CN 201621388431U CN 206338040 U CN206338040 U CN 206338040U
- Authority
- CN
- China
- Prior art keywords
- sucker rod
- rod
- transition cylinder
- abrasionproof pipe
- groove
- 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
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Abstract
A kind of cladding sucker rod for preventing clad from bouncing back, there is sucker rod external screw thread on the head of sucker rod, transition cylinder, the body of rod, the externally threaded big footpath of sucker rod is identical with the external diameter of transition cylinder, the external diameter of transition cylinder is more than the external diameter of the body of rod, transition cylinder is arc transition with the body of rod, in the upper end of transition cylinder, undergauge groove is set, several coherent groove is set on transition cylinder, on sucker rod during hot-cast abrasionproof pipe, abrasionproof pipe is filled in undergauge groove and coherent groove, the end of abrasionproof pipe is set to be articulated on sucker rod, abrasionproof pipe can not bounce back on sucker rod, in seasonal variations and storage, when the different temperature difference are undergone in use environment change, abrasionproof pipe will not bounce back, the service life and eccentric abrasion prevention effect of cladding sucker rod can be improved, the oil well production cycle can be extended, reduce workover rig service to oil well, improve the economic benefit of pumpingh well.
Description
Technical field
The mechanical oil recovery device that the utility model belongs in oil field pumping well, is a kind of sucker rod, is specifically a kind of anti-
The cladding sucker rod that only clad bounces back.
Background technology
In oil pumping in oil fields system, R a T has relative contact movement, is necessarily deposited between sucker rod and oil pipe
In friction, the abrasion of sucker rod, oil pipe is also just inevitably occurred in that.Particularly deep-well and inclined shaft, sucker rod is in oil pipe
Inside it is easily bent, the problem of serious sucker rod partial wear oil pipe occur prevents oil pipe and sucker rod from using after producing eccentric wear,
Oil well operation is caused, oil well repair free period is short, increase operating cost, increase rod tube consumption, the oil well off-time is more, reduces crude oil production
Amount.In order to solve the above problems, technical staff employs cladding sucker rod, such as Chinese patent 2006200875767《Eccentric abrasion prevention is taken out
Beam hanger》, oil pumping rod outer surface coated abrasionproof pipe, and club shaft energy eccentric abrasion prevention of pumping can improve the service life of rod string.
But this sucker rod by equipment and cladding process due to being limited, its sucker rod, which can only be designed, is processed into knot as shown in Figure 1
Structure, coats by cylinder transition between screw thread and the body of rod, on the body of rod of sucker rod in Fig. 1 and such as Fig. 2 is formed after abrasionproof pipe
Shown structure, abrasionproof pipe can not be coated in the screw thread and cylinder transition portion of sucker rod.The cladding sucker rod of this structure
During using, storing, different seasons are undergone, also to coordinate oil well production increasing technique（Such as inject liquid carbon dioxide or
Liquid nitrogen, lowest temperature reaches subzero 80C ゜）, under so big action of thermal difference, its clad（Abrasionproof pipe）The problem of in the presence of retraction,
Clad can not all cover the body of rod, its performance is affected, do not reach preferable service life and eccentric abrasion prevention effect.
The content of the invention
The purpose of this utility model is a kind of cladding sucker rod for preventing clad from bouncing back of design, solves above-mentioned ask
Topic, is subjected to clad after the different temperature difference and does not bounce back, and improves the service life and eccentric abrasion prevention effect of cladding sucker rod.
What the purpose of this utility model was realized in：Including sucker rod, abrasionproof pipe, the head of sucker rod has outside sucker rod
Screw thread, transition cylinder, the body of rod, described transition cylinder are under described sucker rod external screw thread, at the described body of rod
Under described transition cylinder, the external diameter of described transition cylinder is more than the external diameter of the described body of rod, described transition
Cylinder is arc transition with the described body of rod, and abrasionproof pipe is coated on sucker rod, set in the upper end of described transition cylinder
Undergauge groove is put, several coherent groove is set on described transition cylinder, on sucker rod during hot-cast abrasionproof pipe, abrasionproof pipe fills
Fill out described undergauge groove and described coherent groove in, the end of abrasionproof pipe is articulated on sucker rod, abrasionproof pipe can not
Bounced back on sucker rod.
Described undergauge groove is arc-shaped, mitigates the stress concentration for bearing alternate load generation.
The beneficial effects of the utility model are：Undergauge groove is set in the upper end of transition cylinder, on transition cylinder
Several coherent groove is set, and on sucker rod during hot-cast abrasionproof pipe, abrasionproof pipe can be filled in undergauge groove and coherent groove, make to prevent
The end of mill pipe is articulated on sucker rod, and abrasionproof pipe can not bounce back on sucker rod.Therefore, the utility model overcomes at present
The problem of existing, when seasonal variations undergo the different temperature difference with storage, use environment change, abrasionproof pipe will not bounce back, Ke Yiti
The service life and eccentric abrasion prevention effect of high cladding sucker rod, can extend the oil well production cycle, reduce workover rig service to oil well, raising is taken out
The economic benefit of oil well.
Brief description of the drawings
Accompanying drawing 1 is the sucker rod for being used to coat abrasionproof pipe in the prior art.
Accompanying drawing 2 is the cladding sucker rod of prior art.
Accompanying drawing 3 is installation diagram of the present utility model.
Accompanying drawing 4 is the structure chart of part 1 in accompanying drawing 3.
Accompanying drawing 5 is the shape graph of part 2 in accompanying drawing 3.
Embodiment
Embodiment of the present utility model is illustrated below in conjunction with the accompanying drawings.
As shown in Fig. 3,4,5, embodiment of the present utility model includes sucker rod 1, abrasionproof pipe 2, and the head of sucker rod 1 is taken out
Beam hanger external screw thread 01, transition cylinder 02, the body of rod 03, described transition cylinder 02 be in described sucker rod external screw thread 01 it
Under, the described body of rod 03 is under described transition cylinder 02, and the external diameter of described transition cylinder 02 is more than described
The external diameter of the body of rod 03, described transition cylinder 02 and the described body of rod 03 are arc transition, and abrasionproof pipe 2 is coated on sucker rod 1
On, undergauge groove 04 is set in the upper end of described transition cylinder 02, sets several to join on described transition cylinder 02
Groove 05 is passed through, on sucker rod 1 during hot-cast abrasionproof pipe 2, abrasionproof pipe 2 is filled to described undergauge groove 04 and described coherent groove 05
In, the end of abrasionproof pipe 2 is articulated on sucker rod 1, abrasionproof pipe 2 can not bounce back on sucker rod 1.Described undergauge groove
04 is arc-shaped, can mitigate the stress concentration for bearing alternate load generation, it is to avoid fatigue fracture.
Two-end structure of the present utility model is identical, and the other end is not drawn in figure.
The utility model can carry out manufacture production with existing equipment and manufacturing process, it is not necessary to the equipment of modified technique,
Processing is convenient, it is easy to implement.
The upper end of abrasionproof pipe 2 in Fig. 5 is the inner annular boss matched with described undergauge groove 04, two windows it
Between the described coherent groove 05 of entity correspondence, this part entity connects the inner annular boss of upper end.Abrasionproof pipe 2 in Fig. 5
Described transition cylinder 02 sets the described coherent groove 05 not have removed entity on upper window correspondence sucker rod 1.
Hot-cast abrasionproof pipe 2 is that abrasionproof pipe 2 is being coated on sucker rod 1 on sucker rod 1.
Claims (2)
1. a kind of cladding sucker rod for preventing clad from bouncing back, including sucker rod（1）, abrasionproof pipe（2）, sucker rod（1）Head
There is sucker rod external screw thread（01）, transition cylinder（02）, the body of rod（03）, described transition cylinder（02）In described oil pumping
Bar external screw thread（01）Under, the described body of rod（03）In described transition cylinder（02）Under, described transition cylinder
（02）External diameter be more than the described body of rod（03）External diameter, described transition cylinder（02）With the described body of rod（03）For circular arc
Transition, abrasionproof pipe（2）It is coated on sucker rod（1）On, it is characterized in that：In described transition cylinder（02）Upper end set undergauge
Groove（04）, in described transition cylinder（02）Upper several coherent groove of setting（05）, in sucker rod（1）Upper hot-cast abrasionproof pipe
（2）When, abrasionproof pipe（2）It is filled to described undergauge groove（04）With described coherent groove（05）In, make abrasionproof pipe（2）End
It is articulated in sucker rod（1）On, abrasionproof pipe（2）Can not be in sucker rod（1）Upper retraction.
2. a kind of cladding sucker rod for preventing clad from bouncing back according to claim 1, it is characterized in that：Described undergauge is recessed
Groove（04）For arc-shaped, mitigate the stress concentration for bearing alternate load generation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621388431.0U CN206338040U (en) | 2016-12-18 | 2016-12-18 | A kind of cladding sucker rod for preventing clad from bouncing back |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621388431.0U CN206338040U (en) | 2016-12-18 | 2016-12-18 | A kind of cladding sucker rod for preventing clad from bouncing back |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206338040U true CN206338040U (en) | 2017-07-18 |
Family
ID=59302176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621388431.0U Expired - Fee Related CN206338040U (en) | 2016-12-18 | 2016-12-18 | A kind of cladding sucker rod for preventing clad from bouncing back |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206338040U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837190A (en) * | 2016-12-18 | 2017-06-13 | 李永祥 | A kind of cladding sucker rod for preventing clad from bouncing back |
-
2016
- 2016-12-18 CN CN201621388431.0U patent/CN206338040U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837190A (en) * | 2016-12-18 | 2017-06-13 | 李永祥 | A kind of cladding sucker rod for preventing clad from bouncing back |
| CN106837190B (en) * | 2016-12-18 | 2019-01-22 | 李永祥 | A kind of cladding sucker rod for preventing clad from bouncing back |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20170718 Termination date: 20191218 |