CN203097739U - Anti-corrosion, anti-scaling and anti-eccentric wear oil tube - Google Patents
Anti-corrosion, anti-scaling and anti-eccentric wear oil tube Download PDFInfo
- Publication number
- CN203097739U CN203097739U CN 201220677831 CN201220677831U CN203097739U CN 203097739 U CN203097739 U CN 203097739U CN 201220677831 CN201220677831 CN 201220677831 CN 201220677831 U CN201220677831 U CN 201220677831U CN 203097739 U CN203097739 U CN 203097739U
- Authority
- CN
- China
- Prior art keywords
- oil tube
- oil pipe
- eccentric wear
- hermaphrodite connector
- oil
- 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
Links
- 238000005260 corrosion Methods 0.000 title abstract 5
- -1 polyethylene Polymers 0.000 claims abstract description 12
- 239000004698 Polyethylene Substances 0.000 claims abstract description 8
- 229920000573 polyethylene Polymers 0.000 claims abstract description 8
- 239000004677 Nylon Substances 0.000 claims abstract description 7
- 229920001778 nylon Polymers 0.000 claims abstract description 7
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 7
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 6
- 239000010935 stainless steel Substances 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 7
- 239000003208 petroleum Substances 0.000 abstract description 3
- 230000010196 hermaphroditism Effects 0.000 abstract 11
- 230000008878 coupling Effects 0.000 abstract 4
- 238000010168 coupling process Methods 0.000 abstract 4
- 238000005859 coupling reaction Methods 0.000 abstract 4
- 238000007789 sealing Methods 0.000 abstract 2
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000000605 extraction Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010913 used oil Substances 0.000 description 1
Images
Landscapes
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
Abstract
The utility model provides an anti-corrosion, anti-scaling and anti-eccentric wear oil tube, which belongs to the field of petroleum extraction equipment of petroleum machinery, consists of a coupling, a hermaphrodite connector and an oil tube, and is characterized in that inner walls of the oil tube and the hermaphrodite connector are provided with liner tubes; the liner tubes are made of polyethylene or nylon; the coupling and the hermaphrodite connector are made of stainless steel; a sealing ring is arranged between the hermaphrodite connector and the oil tube, and is made of polyethylene or polytetrafluoroethylene; one end of the hermaphrodite connector is provided with internal threads, and the other end of the hermaphrodite connector is provided with external threads; and the coupling is provided with internal threads and is connected with the hermaphrodite connector and the oil tube through a threaded manner. Compared with the existing oil tube, the anti-corrosion, anti-scaling and anti-eccentric wear oil tube has the advantages that the inner walls of the oil tube and the hermaphrodite connector are provided with the liner tubes, so that corrosion and scaling can be effectively prevented, and a sucker rod can be effectively avoided from being directly and eccentrically worn with the oil tube; the coupling and the hermaphrodite connector are made of the stainless steel and are matched and used with the liner tube of the oil tube, so the oil tube is enabled to have anti-corrosion and no-blind area performance; and the sealing ring is arranged between the hermaphrodite connector and the oil tube, so that oil dirt can be effectively avoided from entering the oil tube from the hermaphrodite connector and the threads of the oil tube.
Description
Affiliated technical field
The utility model belongs to petroleum machinery oil production equipment field, be specifically related to be a kind of oil field recover the oil or the fluid injection body medium with anticorrosion, antiscale, eccentric wear-resistant oil pipe.
Background technology
Modern oil exploitation is extensive use of the method for mechanical oil recovery, and oil recovery or fluid injection body medium are used oil pipe mostly.When oil and gas development, existing oil pipe bears the synergy of multiple load and different corrosive mediums at work, greatly reduces the application life of oil pipe.In addition, oblique section of some directional well long and well have certain curvature, thereby the friction phenomenon between sucker rod and oil pipe is comparatively serious in the directional well, are not with sucker rod and box cupling mill partially in the oil recovery process, be exactly that the oil pipe mill is leaked, cause whole oil production equipment thrashing.Therefore, for satisfy the big pump in oil field, adopt by force, dark well recovery hole condition demand, that processing and manufacturing has is anticorrosion, the oil pipe of antiscale, anti-eccentric wear performance, is the key measure that reduces the oil field cost for oil production.
Summary of the invention
In order to improve oil pipe anti-corrosive, antiscale, anti-eccentric wear performance, the utility model provides the technical scheme of a kind of anticorrosion, antiscale, eccentric wear-resistant oil pipe, the technical program is simple in structure, is well positioned to meet existing producing well to oil pipe anti-corrosive, antiscale, anti-eccentric wear performance demands.
The utility model is achieved in that a kind of anticorrosion, antiscale, eccentric wear-resistant oil pipe, and it is made of box cupling, pin and box sub, oil pipe, it is characterized in that, oil pipe and pin and box sub inwall have internal lining pipe.
Described internal lining pipe is polyethylene or nylon material.
Described box cupling and pin and box sub are stainless steel.
Be provided with joint ring between described pin and box sub and the oil pipe.
Described joint ring is polyethylene or nylon or polytetrafluoroethylene (PTFE) material.
Described pin and box sub one end is an internal thread, and the other end is an external screw thread.
Described box cupling has internal thread, and box cupling is connected by engage thread with pin and box sub, oil pipe.
The beneficial effects of the utility model are: compare with existing oil pipe, oil pipe and pin and box sub inwall have internal lining pipe, can be effectively anticorrosion, antiscale, avoid sucker rod directly and oil pipe generation eccentric wear.Box cupling and pin and box sub material are stainless steel, are used with the oil pipe internal lining pipe, make oil pipe have the performance of anticorrosion non-blind area.Be provided with joint ring between pin and box sub and the oil pipe, can effectively avoid grease to enter oil pipe from pin and box sub and tubing round thread.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Accompanying drawing is the structural representation of the utility model embodiment.
Among the figure: 1. box cupling, 2. pin and box sub, 3. oil pipe, 4. internal lining pipe, 5, joint ring.
Specific embodiment
As shown in drawings, the utility model is made of box cupling (1), pin and box sub (2), oil pipe (3), it is characterized in that oil pipe (3) and pin and box sub (2) inwall have internal lining pipe (4).
Described internal lining pipe (4) is polyethylene or nylon material.
Described box cupling (1) is a stainless steel with pin and box sub (2).
Be provided with joint ring (5) between described pin and box sub (2) and the oil pipe (3).
Described joint ring (5) is polyethylene or nylon or polytetrafluoroethylene (PTFE) material.
Described pin and box sub (2) one ends are internal thread, and the other end is an external screw thread.
Described box cupling (1) has internal thread, and box cupling (1) is connected by engage thread with pin and box sub (2), oil pipe (3).
Claims (7)
1. anticorrosion a, antiscale, eccentric wear-resistant oil pipe, it is made of box cupling, pin and box sub, oil pipe, it is characterized in that, and oil pipe and pin and box sub inwall have internal lining pipe.
2. a kind of anticorrosion, antiscale according to claim 1, eccentric wear-resistant oil pipe, its feature is that also described internal lining pipe is polyethylene or nylon material.
3. a kind of anticorrosion, antiscale according to claim 1, eccentric wear-resistant oil pipe, its feature is that also described box cupling and pin and box sub are stainless steel.
4. a kind of anticorrosion, antiscale according to claim 1, eccentric wear-resistant oil pipe, its feature also is, is provided with joint ring between described pin and box sub and the oil pipe.
5. a kind of anticorrosion, antiscale according to claim 4, eccentric wear-resistant oil pipe, its feature is that also described joint ring is polyethylene or nylon or polytetrafluoroethylene (PTFE) material.
6. a kind of anticorrosion, antiscale according to claim 1, eccentric wear-resistant oil pipe, its feature is that also described pin and box sub one end is an internal thread, the other end is an external screw thread.
7. a kind of anticorrosion, antiscale according to claim 1, eccentric wear-resistant oil pipe, its feature is that also described box cupling has internal thread, box cupling is connected by engage thread with pin and box sub, oil pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220677831 CN203097739U (en) | 2012-12-08 | 2012-12-08 | Anti-corrosion, anti-scaling and anti-eccentric wear oil tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220677831 CN203097739U (en) | 2012-12-08 | 2012-12-08 | Anti-corrosion, anti-scaling and anti-eccentric wear oil tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203097739U true CN203097739U (en) | 2013-07-31 |
Family
ID=48849148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220677831 Expired - Lifetime CN203097739U (en) | 2012-12-08 | 2012-12-08 | Anti-corrosion, anti-scaling and anti-eccentric wear oil tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203097739U (en) |
-
2012
- 2012-12-08 CN CN 201220677831 patent/CN203097739U/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 |
Granted publication date: 20130731 |
|
| CX01 | Expiry of patent term |