CN206368691U - A kind of pumping rod anti-corrosive device - Google Patents
A kind of pumping rod anti-corrosive device Download PDFInfo
- Publication number
- CN206368691U CN206368691U CN201621038459.1U CN201621038459U CN206368691U CN 206368691 U CN206368691 U CN 206368691U CN 201621038459 U CN201621038459 U CN 201621038459U CN 206368691 U CN206368691 U CN 206368691U
- Authority
- CN
- China
- Prior art keywords
- sucker rod
- centralizer body
- substitute
- alloy cylinder
- abrasion
- 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
- 238000005086 pumping Methods 0.000 title claims abstract description 19
- 239000000956 alloy Substances 0.000 claims abstract description 29
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 29
- 238000005260 corrosion Methods 0.000 claims abstract description 16
- 230000007797 corrosion Effects 0.000 claims abstract description 16
- 230000008878 coupling Effects 0.000 claims abstract description 12
- 238000010168 coupling process Methods 0.000 claims abstract description 12
- 238000005859 coupling reaction Methods 0.000 claims abstract description 12
- 230000001681 protective effect Effects 0.000 claims abstract description 12
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 239000004677 Nylon Substances 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 6
- 229920001778 nylon Polymers 0.000 claims description 6
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- 235000008429 bread Nutrition 0.000 claims 2
- 229910052749 magnesium Inorganic materials 0.000 claims 1
- 239000011777 magnesium Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 2
- 238000000605 extraction Methods 0.000 abstract 1
- 239000003208 petroleum Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000006056 electrooxidation reaction Methods 0.000 description 6
- 230000006872 improvement Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000008151 electrolyte solution Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 208000037656 Respiratory Sounds Diseases 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model discloses a kind of pumping rod anti-corrosive device, belong to technical field of petroleum extraction, including sucker rod substitute (7) and the abrasion-proof coupling that is connected through a screw thread with the sucker rod substitute (7)（1）, the sucker rod substitute（7）On be arranged with alloy cylinder（4）, the alloy cylinder（4）It is arranged with protective cover outside（5）；The alloy cylinder（4）Two ends be respectively equipped with the first centralizer body（3）With the second centralizer body（6）, first centralizer body（3）With the second centralizer body（6）It is sheathed on the sucker rod substitute（7）On；The sucker rod substitute（7）On be connected with lock nut（2）, the lock nut（2）Located at first centralizer body（3）With abrasion-proof coupling（1）Between.The utility model is simple in construction, convenient disassembly, can effectively prevent sucker rod corrosion disconnected de-.
Description
Technical field
The utility model belongs to oil exploitation industry technical field, further relates to a kind of for oil-water well preventing sucker rod
Rotten pumping rod anti-corrosive device.
Background technology
In petrochemical field, corrosion of metal is particularly problematic, exploitation and production shadow of the corrosion of metal to each oil gas field
Sound is extremely serious, wherein most it is representational be exactly oily, sleeve pipe and sucker rod corrosion.The seriously corroded influence oil pumping of sucker rod
The life-span of bar, seriously corroded causes rod parting phenomenon, can increase cost of crude oil production.Tube rod accounts for gross investment in the production of oil field
60-75%, downhole tubular, bar, pump etc. shorten the duty cycle caused by corrosion, and corrosion is that underground equipment damages the main cause scrapped,
Production to oil field brings huge economic loss.
The subsurface equipment of oil-water well and the raw material of tube rod are essentially all metal, are all immersed in the electricity such as underground water or well liquid
In electrolyte solution（Because underground water or well liquid salinity are higher, ion concentration is very big, belongs to electrolyte solution）, so while metal
Surface occur Galvanic interaction and cause metal electrochemical corrosion be oil-water well corrosion main contributor.
During oil exploitation, sucker rod is in perishable environment all the time.Sucker rod is in dynamic stress ring
Border, plays the role of by fluid and abrasive particle, sucker rod is corroded aggravation and is also easy to produce corrosion fatigue.With oil field development, well liquid contains
Water rises, when crackle occurs in sucker rod surface, and well liquid is full of crackle, so as to form electrochemical corrosion.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of corrosion for reducing sucker rod, prevents that sucker rod corrosion is disconnected
It is de-, extend the pumping rod anti-corrosive device in sucker rod life-span, the characteristics of it has simple in construction, convenient disassembly.
The utility model is solved the above problems by following technological means：
A kind of pumping rod anti-corrosive device, including sucker rod substitute and wear-resisting connect with what the sucker rod substitute was connected through a screw thread
Alloy cylinder is arranged with hoop, the sucker rod substitute, the alloy cylinder is outer to be arranged with protective cover；
The two ends of the alloy cylinder are respectively equipped with the first centralizer body and the second centralizer body, and first centralizer body and second are helped
Roman is sheathed on the sucker rod substitute；
Lock nut is connected with the sucker rod substitute, the lock nut connects located at first centralizer body with wear-resisting
Between hoop.
Further, the abrasion-proof coupling outer surface is coated with AOC-160 wear-and corrosion-resistant anti-attrition layers.
Further, the lock nut is hex nut.
Further, first centralizer body is that outer surface is coated with the nylon supporting positive cover that carbon pricker ties up composite.
Further, the alloy cylinder is the alloy cylinder being made of magnesium metal, metallic zinc, metallic aluminium and crome metal.
Further, the protective cover is the metal cylinder that surface is provided with through hole.
Further, second centralizer body is that outer surface is coated with the nylon supporting positive cover that carbon pricker ties up composite.
Further, the one end of the sucker rod substitute away from abrasion-proof coupling is provided with step, and the step is used for described the
Two centralizer bodies along sucker rod substitute move when it is spacing.
The beneficial effects of the utility model are as follows：
Compared with prior art, the utility model is used for sucker rod, puts in the electrolyte solution of pit shaft, and alloy cylinder is with taking out
Beam hanger original corrosion cell is into a new macroscopical battery, and alloy cylinder is as the anode of new battery, the sucker rod work being easily corroded
For negative electrode, anode constantly provides cathode current to protected sucker rod, cathodic polarization, the corruption of former sucker rod is carried out to sucker rod
Erosion galvanic action is forced to stop, and has fundamentally resisted the electrochemical corrosion of sucker rod.With the continuous flowing of electric current, anode gold
Category cylinder is constantly consumed.Electrochemical corrosion can just occur for sucker rod after anode metal cylinder runs out of, therefore can realize and delay
Sucker rod corrodes, and protects the purpose of sucker rod.
In the utility model, the alloy cylinder and protective cover of pumping rod anti-corrosive device are solid by the first centralizer body and the second centralizer body
Surely it is sheathed on outside sucker rod substitute, the first centralizer body is limited by lock nut and moves up and down position；Protective cover prevents alloy cylinder
In anode metal occur bulk in dissolved corrosion process and drop phenomenon；First centralizer body and the second centralizer body had both fixed alloy cylinder
And protective cover, there is the effect of oil pumping rod centering device again.
Brief description of the drawings
Fig. 1 be the utility model proposes a kind of pumping rod anti-corrosive device structural representation；
In figure:
1st, abrasion-proof coupling；2nd, lock nut；3rd, the first centralizer body；4th, alloy cylinder；5th, protective cover；6th, the second centralizer body；
7th, sucker rod substitute.
Embodiment
In description of the present utility model, it is to be understood that term " " center ", " on ", " under ", "front", "rear",
The orientation or position relationship of the instruction such as "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " is based on accompanying drawing institutes
The orientation or position relationship shown, is for only for ease of description the utility model and simplifies description, rather than indicate or imply and be signified
Device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this practicality
New limitation.
Term " first ", " second " be only used for describe purpose, and it is not intended that indicate or imply relative importance or
The implicit quantity for indicating indicated technical characteristic.Thus, " first " is defined, the feature of " second " can be expressed or imply
Ground includes one or more this feature.In description of the present utility model, unless otherwise indicated, " multiple " are meant that two
Individual or two or more.
The utility model is described in detail below with reference to accompanying drawing, as shown in Figure 1：One kind described in the present embodiment is taken out
Beam hanger corrosion-preventing device, including sucker rod substitute 7 and the abrasion-proof coupling 1 that is connected through a screw thread with sucker rod substitute 7, the sucker rod are short
It is arranged with section 7 outside alloy cylinder 4, the alloy cylinder 4 and is arranged with protective cover 5；Wherein, abrasion-proof coupling 1 can select high abrasion material
Material is made so that anti-wear performance is increased, and realizes high abrasion.
The two ends of alloy cylinder 4 are respectively equipped with the first centralizer body 3 and the second centralizer body 6, first centralizer body 3 and the
Two centralizer bodies 6 are sheathed on the sucker rod substitute 7；By being arranged so that the first centralizer body 3 and the second centralizer body 6 can be with
Freely rotated on sucker rod substitute 7；
Be connected with lock nut 2 on the sucker rod substitute 7, the lock nut 2 located at first centralizer body 3 with it is resistance to
Between mill box cupling 1.By the lock nut 2, can limit the first centralizer body 3 along sucker rod substitute 7 move when displacement, from
And reach spacing effect.
In order to improve the anti-wear performance of blast joint, the further improvement of above-mentioned technical proposal, the abrasion-proof coupling are used as
Outer surface is coated with AOC-160 wear-and corrosion-resistant anti-attrition layers.
In order to preferably spacing, as the further improvement of above-mentioned technical proposal, the lock nut 2 is hex nut.
The endoporus of the lock nut 2 is provided with the screw thread being connected with sucker rod substitute 7, and lock nut is thickness 15mm, the six of opposite side 33mm
Angle nut.
In order to avoid the first centralizer body 3 is worn, the anti-wear performance of the outer surface of the first centralizer body 3 is improved, above-mentioned skill is used as
The further improvement of art scheme, first centralizer body 3 is that outer surface is coated with the nylon supporting positive cover that carbon pricker ties up composite.
In order that obtaining alloy cylinder 4 plays more preferable anode effect, the further improvement of above-mentioned technical proposal, the conjunction are used as
Golden cylinder 4 is the alloy cylinder 4 being mixed using magnesium metal, metallic zinc, metallic aluminium and crome metal material.
In use, with the continuous flowing of electric current, alloy cylinder 4 is constantly consumed, as powder, these powder for convenience
The discharge at end, as the further improvement of above-mentioned technical proposal, the protective cover 5 is the metal cylinder that surface is provided with through hole, is used
In, the preferential metal cylinder from thin-walled.
In order to avoid the second centralizer body 6 is worn, the anti-wear performance of the outer surface of the second centralizer body 6 is improved, above-mentioned skill is used as
The further improvement of art scheme, second centralizer body 6 is that outer surface is coated with the nylon supporting positive cover that carbon pricker ties up composite.
In order to limit the second centralizer body 6 along sucker rod substitute 7 move when position, the sucker rod substitute 7 is away from wear-resisting
One end of box cupling 1 be provided with step, the step be used for second centralizer body 6 along sucker rod substitute 7 move when it is spacing.
During utility model works, the pumping rod anti-corrosive device is connected on sucker rod by sucker rod substitute 7, specifically
Ground, the two ends of sucker rod substitute 7 are connected through a screw thread button connecting with pumping rod, then by its tripping in oil well provided with threaded connection mouth
Or in water injection well, in pit shaft electrolyte solution, alloy cylinder 4 and sucker rod one macroscopical battery of formation, now, alloy cylinder 4
As the anode of new battery, and sucker rod is the negative electrode of new battery, and anode constantly provides negative electrode electricity to protected sucker rod
Stream, cathodic polarization is carried out to sucker rod, and the corrosion cell effect of former sucker rod is forced to stop, and has fundamentally resisted sucker rod
Electrochemical corrosion.With the continuous flowing of electric current, alloy cylinder 4 is constantly consumed, as powder, and powder is from the protective cover 5
Through hole discharge.Electrochemical corrosion can just occur for sucker rod after alloy cylinder 4 runs out of, and delay sucker rod to corrode so as to reach,
Protect the purpose of sucker rod.
Finally illustrate, above example is only unrestricted to illustrate the technical solution of the utility model, although ginseng
The utility model is described in detail according to preferred embodiment, it will be understood by those within the art that, can be to this
The technical scheme of utility model is modified or equivalent substitution, without departing from the objective and model of technical solutions of the utility model
Enclose, it all should cover among right of the present utility model.
Claims (7)
1. a kind of pumping rod anti-corrosive device, it is characterised in that pass through including sucker rod substitute (7) and with the sucker rod substitute (7)
It is arranged with outside alloy cylinder (4), the alloy cylinder (4) and is arranged on the abrasion-proof coupling (1) of threaded connection, the sucker rod substitute (7)
There is protective cover (5)；
The two ends of the alloy cylinder (4) are respectively equipped with the first centralizer body (3) and the second centralizer body (6), first centralizer body (3)
It is sheathed on the sucker rod substitute (7) with the second centralizer body (6)；
Lock nut (2) is connected with the sucker rod substitute (7), the lock nut (2) is located at first centralizer body (3)
Between abrasion-proof coupling (1)；
The one end of the sucker rod substitute (7) away from abrasion-proof coupling (1) is provided with step, and the step is used for second centralizer body
(6) it is spacing when mobile along sucker rod substitute (7).
2. a kind of pumping rod anti-corrosive device according to claim 1, it is characterised in that：Abrasion-proof coupling (1) outer surface is applied
It is covered with AOC-160 wear-and corrosion-resistant anti-attrition layers.
3. a kind of pumping rod anti-corrosive device according to claim 1, it is characterised in that：The lock nut (2) is hexagonal spiral shell
It is female.
4. a kind of pumping rod anti-corrosive device according to claim 1, it is characterised in that：First centralizer body (3) is appearance
Bread is covered with the nylon supporting positive cover that carbon pricker ties up composite.
5. a kind of pumping rod anti-corrosive device according to claim 1, it is characterised in that：The alloy cylinder (4) is to use metal
The alloy cylinder that magnesium, metallic zinc, metallic aluminium and crome metal are made.
6. a kind of pumping rod anti-corrosive device according to claim 1, it is characterised in that：The protective cover (5) is provided with for surface
The metal cylinder of through hole.
7. a kind of pumping rod anti-corrosive device according to claim 1, it is characterised in that：Second centralizer body (6) is appearance
Bread is covered with the nylon supporting positive cover that carbon pricker ties up composite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621038459.1U CN206368691U (en) | 2016-09-06 | 2016-09-06 | A kind of pumping rod anti-corrosive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621038459.1U CN206368691U (en) | 2016-09-06 | 2016-09-06 | A kind of pumping rod anti-corrosive device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206368691U true CN206368691U (en) | 2017-08-01 |
Family
ID=59389817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621038459.1U Expired - Fee Related CN206368691U (en) | 2016-09-06 | 2016-09-06 | A kind of pumping rod anti-corrosive device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206368691U (en) |
-
2016
- 2016-09-06 CN CN201621038459.1U patent/CN206368691U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20170801 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |