CN207093350U - Tungsten alloy anti-corrosion oil well pump - Google Patents
Tungsten alloy anti-corrosion oil well pump Download PDFInfo
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- CN207093350U CN207093350U CN201720916474.XU CN201720916474U CN207093350U CN 207093350 U CN207093350 U CN 207093350U CN 201720916474 U CN201720916474 U CN 201720916474U CN 207093350 U CN207093350 U CN 207093350U
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- oil
- well pump
- tungsten alloy
- pump
- oil well
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Abstract
The utility model discloses an anticorrosive oil-well pump of tungsten alloy, including sleeve pipe, oil pipe and oil-well pump, the sleeve pipe sets up in the well head, oil pipe sets up in the sleeve pipe, the oil-well pump sets up in the oil pipe, with oil pipe connects, the upper portion and the sucker rod of oil-well pump are connected, the lower part of oil-well pump has set gradually delivery valve and inlet valve, the surface of oil-well pump and sucker rod all is plated a layer thickness and is 4 ~ 6.5 mm's anticorrosive protective layer, and this protective layer is the tungsten alloy. The scaling problem in the use process of the oil well pump can be effectively reduced; for chloride ion, CO2Has excellent corrosion resistance, thereby further prolonging the service life of the oil well pump and reducing the oil extraction cost.
Description
Technical field
The utility model belongs to oil-well pump anti-corrosive field, and in particular to a kind of tungsten alloy anti-corrosive oil pump.
Background technology
For Changqing oilfields using sucker rod pumping, oil well pump is its critical piece, and oil well pump is immersed in oil field well
Operation in well liquid, during oil pumping, well liquid can enter in the fit clearance between the inner surface of oil pump sleeve and the outer surface of plunger,
If the inner surface of pump barrel and the outer surface decay resistance of plunger are bad, mould and other comprehensive corrosion factors can be soon
Corrode the inner surface of pump barrel and the outer surface of plunger, oil well pump can not pump when serious.It is comprehensive with deepening continuously for oil field development
Close it is aqueous rise year by year, cause pit shaft dress situation corrosion aggravation, cause that oil well pump is disconnected de-, leakage problem also just becomes clear day by day, sternly
The normal production for affecting oil gas field of weight, causes substantial amounts of economic loss.
Oil-well pump anti-corrosive technology is mainly the method protected using face coat and use anti-corrosion material at present, such as in pump
Tube inner surface chromium plating, in outer surface lacquer, using measures such as the valve pairs of " carbonization iron ball+tungsten carbide seat " combining structure.But by
In coating abrasion, come off, failing etc. can cause anti-corrosion protection to fail, and the antiseptic power of material has certain limitation,
Oil well pump corrosion is caused to cause oil well to stop production.
Utility model content
Technical problem to be solved in the utility model is to be directed to above-mentioned deficiency of the prior art, there is provided a kind of tungsten closes
Golden anti-corrosion pumping pump, anti-corrosion effectively can be carried out to oil well pump, extend oil well repair free period, reduce cost.
The utility model uses following technical scheme：
A kind of tungsten alloy anti-corrosive oil pump, including sleeve pipe, oil pipe and oil well pump, described sleeve pipe are arranged in well head, described
Oil pipe is arranged in described sleeve pipe, and the oil well pump is arranged in the oil pipe, for being connected with the oil pipe, the oil well pump
Top be connected with sucker rod, the bottom of the oil well pump is disposed with delivery valve and inlet valve, the oil well pump and oil pumping
The surface of bar is coated with the corrosion protective covering that a layer thickness is 4~6.5mm, and the protective layer is by nickel, tungsten, iron, phosphorus and carbon alloy
The tungsten alloy of composition, the case hardness of tungsten alloy is 760~1100HV.
Further, the tungsten alloy is arranged on the inner surface of the oil pump sleeve.
Further, the tungsten alloy is arranged on the outer surface of the oil pump plunger piston.
Further, the tungsten alloy is arranged on the inner surface of the oil pump sleeve and the outer surface of plunger.
Compared with prior art, the utility model at least has the advantages that：
The utility model tungsten alloy anti-corrosive oil pump, tungsten alloy are a kind of high-quality surface anticorrosion wear-resistant materials, and surface is plated
After upper tungsten alloy, coating surface hardness is high, and being combined between atom between coating and matrix combines, and bond strength is high, will not go out
Existing coating comes off；The smooth densification of coating surface, it can effectively mitigate the scale problems during oil well pump use；To chlorion,
CO2There is excellent corrosion resistance, further extend oil well pump service life so as to reach, reduce cost for oil production.
Further, tungsten alloy is respectively provided with the inner surface of pump barrel and the outer surface of plunger, effectively improves case hardness, it is resistance to
Strong, the good corrosion resistance of mill property, manufactured oil well pump is corrosion-resistant and Abrasion properties are good, service life length.
Below by drawings and examples, the technical solution of the utility model is described in further detail.
Brief description of the drawings
Fig. 1 is the utility model schematic diagram.
Wherein：1. well head；2. sucker rod；3. oil pipe；4. sleeve pipe；5. tungsten alloy；6. oil well pump；7. delivery valve；8. oil-feed
Valve.
Embodiment
Referring to Fig. 1, the utility model discloses a kind of tungsten alloy anti-corrosive oil pump, including sleeve pipe 4, oil pipe 3 and oil pumping
Pump 6, described sleeve pipe 4 are arranged in well head 1, and the oil pipe 3 is arranged in described sleeve pipe 4, and the oil well pump 6 is arranged on the oil
In pipe 3, it is connected with the oil pipe 3, the top of the oil well pump 6 is connected with sucker rod 2, and the bottom of the oil well pump 6 is set successively
Delivery valve 7 and inlet valve 8 are equipped with, the surface of oil well pump 6 is coated with one layer of corrosion protective covering, and the protective layer is tungsten alloy 5.
The tungsten alloy 5 is arranged on the inner surface of the pump barrel of oil well pump 6 and the outer surface of plunger.
The thickness of the tungsten alloy 5 is 4~6.5mm, and case hardness is 800~1200HV after heat treatment.
The surface of the sucker rod 2 is coated with the tungsten alloy 5, and thickness is 4~6.5mm.
Tungsten alloy 5 includes nickel, tungsten, iron, phosphorus and carbon.
Using improved corrosion tungsten alloy material, the excellent mechanical properties for both having possessed low section of material can be obtained, are had again advanced
The suitable antiseptic property of alloy, has high intensity and high corrosion-resistance characteristics concurrently, on the basis of not influenceing tension and yield strength, improves anti-
Rotten performance, extend oil well pump service life.
Claims (4)
1. a kind of tungsten alloy anti-corrosive oil pump, it is characterised in that including sleeve pipe (4), oil pipe (3) and oil well pump (6), described sleeve pipe
(4) it is arranged in well head (1), the oil pipe (3) is arranged in described sleeve pipe (4), and the oil well pump (6) is arranged on the oil pipe
(3) in, for being connected with the oil pipe (3), the top of the oil well pump (6) is connected with sucker rod (2), the oil well pump (6)
Bottom be disposed with delivery valve (7) and inlet valve (8), the surface of the oil well pump (6) and sucker rod (2) is coated with one layer
Thickness is 4~6.5mm corrosion protective covering, and the protective layer is the tungsten alloy (5) that is made up of nickel, tungsten, iron, phosphorus and carbon alloy, institute
The case hardness for stating tungsten alloy (5) is 760~1100HV.
2. a kind of tungsten alloy anti-corrosive oil pump according to claim 1, it is characterised in that the tungsten alloy (5) is arranged on
The inner surface of oil well pump (6) pump barrel.
3. a kind of tungsten alloy anti-corrosive oil pump according to claim 1, it is characterised in that the tungsten alloy (5) is arranged on
The outer surface of oil well pump (6) plunger.
4. a kind of tungsten alloy anti-corrosive oil pump according to claim 1, it is characterised in that the tungsten alloy (5) is arranged on
The inner surface of oil well pump (6) pump barrel and the outer surface of plunger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720916474.XU CN207093350U (en) | 2017-07-26 | 2017-07-26 | Tungsten alloy anti-corrosion oil well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720916474.XU CN207093350U (en) | 2017-07-26 | 2017-07-26 | Tungsten alloy anti-corrosion oil well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207093350U true CN207093350U (en) | 2018-03-13 |
Family
ID=61546201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720916474.XU Active CN207093350U (en) | 2017-07-26 | 2017-07-26 | Tungsten alloy anti-corrosion oil well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207093350U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117569778A (en) * | 2024-01-15 | 2024-02-20 | 东营垣发石油科技有限公司 | Projectile perforation and sand-carrying oil extraction integrated tubular column and process |
-
2017
- 2017-07-26 CN CN201720916474.XU patent/CN207093350U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117569778A (en) * | 2024-01-15 | 2024-02-20 | 东营垣发石油科技有限公司 | Projectile perforation and sand-carrying oil extraction integrated tubular column and process |
| CN117569778B (en) * | 2024-01-15 | 2024-04-05 | 东营垣发石油科技有限公司 | Projectile perforation and sand-carrying oil extraction integrated tubular column and process |
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