CN2588041Y - Short-section type corrosion-resisting device for oil pipe - Google Patents
Short-section type corrosion-resisting device for oil pipe Download PDFInfo
- Publication number
- CN2588041Y CN2588041Y CN 02262151 CN02262151U CN2588041Y CN 2588041 Y CN2588041 Y CN 2588041Y CN 02262151 CN02262151 CN 02262151 CN 02262151 U CN02262151 U CN 02262151U CN 2588041 Y CN2588041 Y CN 2588041Y
- Authority
- CN
- China
- Prior art keywords
- oil pipe
- anode
- joint
- pipe
- nipple
- 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
- 210000002445 nipple Anatomy 0.000 claims description 30
- 229910000861 Mg alloy Inorganic materials 0.000 claims description 8
- 239000000956 alloy Substances 0.000 claims description 7
- 239000010405 anode material Substances 0.000 claims description 7
- 239000000945 filler Substances 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 abstract description 13
- 230000007797 corrosion Effects 0.000 abstract description 13
- 239000003129 oil well Substances 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 229910001297 Zn alloy Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- PGTXKIZLOWULDJ-UHFFFAOYSA-N [Mg].[Zn] Chemical compound [Mg].[Zn] PGTXKIZLOWULDJ-UHFFFAOYSA-N 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Images
Landscapes
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
- Prevention Of Electric Corrosion (AREA)
Abstract
The utility model belongs to a corrosion resisting device of an oil pipe, particularly a short-section type corrosion resisting device for the oil pipe, which is characterized in that the utility model comprises a joint 1, a positive pole 4, and a short section 5 of the oil pipe in connection. The outer part of short section 5 of the oil pipe is sheathed with the positive pole 4 and the short section 5 of the oil pipe is connected with the joint 1. The outer part of the positive pole 4 can be wound with a winding belt 3 or wrapped with an outer filling bag. The joint 1 is connected with the conical surface of the positive pole 4. The joint 1, the oil pipe and the short section 5 of the oil pipe are connected by a standard buckle of the oil pipe. The short-section type corrosion-resisting device for the oil pipe can prevent the oil pipe of an oil well from interiorly and exteriorly being corroded and scaling. The utility model has the advantages of convenient use and replacement, low cost and high benefit recompensing rate.
Description
Affiliated technical field: the utility model belongs to the oil pipe anti-corrosive device, particularly about a kind of pipe nipple formula oil pipe anti-corrosive device.
Background technology: when oil field development enters high water-cut stage, also aggravation day by day of the corrosion of oil pipe and scale problems in the oil-water well, this has had a strong impact on the application life and the economic benefit of oil pipe.The unique method that solves tube corrosion and fouling at present is to inject corrosion inhibiter at the tubing and casing annular space.This method is obvious to the bacterial corrosion effect, but only is applicable to the outer corrosion that prevents oil pipe.And powerless to differential concentration corrosion and macrocorrosion battery, the internal corrosion that also can't solve oil pipe.
Summary of the invention: the purpose of this utility model provides a kind of pipe nipple formula oil pipe anti-corrosive device, and it can prevent inside and outside corrosion of oil-water well oil pipe and fouling, uses and changes conveniently, and cost is low, benefit return rate height.
The technical solution of the utility model is: design a kind of pipe nipple formula oil pipe anti-corrosive device, it is characterized in that: it comprises joint 1, anode 4, and tubing nipple 5 connects and composes; Be with anode 4 outside the tubing nipple 5, tubing nipple 5 is connected with joint 1.
Can be tied with take-up strap 3 outside the described anode 4, or be surrounded by outer filler bag.
Described joint 1 is connected with anode 4 conical surfaces.
Described joint 1 and oil pipe and tubing nipple 5 are that the oil pipe standard links and connects.
Described anode is outer to be chosen in Ф 70-Ф 126mm through size range; The best is Ф 80-Ф 100mm; Selecting through size range in the anode is Ф 70-Ф 120mm, and the best is Ф 70-Ф 80mm.
The total length of described corrosion-preventing device is chosen in 300-700mm; The best is 350-500mm.
The conical surface tapering that described joint 1 is connected with anode 4 is chosen in 15 °-90 °; Optimal selection is at 30 °-60 °.
Described anode material is a magnesium alloy materials.
Described anode material is a zinc alloy material.
Characteristics of the present utility model are: this oil pipe anti-corrosive device; be to utilize the anode loss protection principle, adopt anode material, rail provides enough electronics; oil pipe is under negative, the same potential, and the metallic atom in the oil pipe is not easy to lose electronics and becomes the ion pass into solution.Guarantee in the corrosion cell of sacrificial anode anodic attack and oil pipe does not corrode.This corrosion-preventing device profile is the pipe nipple shape, and it comprises that joint 1, anode 4, tubing nipple 5 connect and compose; Be with anode 4 outside the tubing nipple 5, tubing nipple 5 is connected with joint 1.Anode 4 is outer can be tied with take-up strap 3, or is surrounded by outer filler bag, with prolongation anode service time.Joint 1 is connected with anode 4 conical surfaces, connects to prevent that reliably anode from coming off.Joint 1 and oil pipe and tubing nipple 5 are that the oil pipe standard links and connects, and use and change conveniently, and cost is low.Anode material can be magnesium alloy materials or zinc alloy material, also can be zinc, magnesium alloy materials.Because magnesium alloy can provide bigger protective current, and is cheap.Kirsite uses the current efficiency height, and the life-span is long.
Below in conjunction with the embodiment accompanying drawing the utility model is described further.
Description of drawings: among the figure 1, joint; 2, the conical surface; 3, take-up strap; 4, anode; 5, tubing nipple; 6, pipe thread.
Joint 1 other end at tubing nipple 5 two is connected with oil pipe, and the material of joint 1 is identical with the material of oil pipe.The pipe thread 6 of joint 1 and tubing nipple 5 is standard oil pipe threads.Be with anode 4 outside the tubing nipple 5, anode material is magnesium alloy or kirsite or zinc magnesium alloy, is tied with take-up strap 3 outside the anode 4, and joint 1 is connected with the conical surface 2 with anode 4.Anode is outer to be Ф 88mm through D; The interior of anode is Ф 73mm through d; L is the total length of corrosion-preventing device, and size is 450mm.
This oil pipe anti-corrosive device mainly is to be used for preventing oil-water well tube corrosion and fouling.Can be designed to different specification series according to each oil-water well pump detection period; The anode of varying number also can be installed according to the corrosion condition of each interval of oil-water well.This corrosion-preventing device does not need additional power source, does not have any negative interaction, uses and changes conveniently, and cost is low, benefit return rate height.
Claims (9)
1, a kind of pipe nipple formula oil pipe anti-corrosive device, it is characterized in that: it comprises joint (1), anode (4), and tubing nipple (5) connects and composes; Tubing nipple (5) is outer to be with anode (4), and tubing nipple (5) is connected with joint (1).
2, a kind of pipe nipple formula oil pipe anti-corrosive device according to claim 1 is characterized in that: described anode (4) is outer can be tied with take-up strap (3), or is surrounded by outer filler bag.
3, a kind of pipe nipple formula oil pipe anti-corrosive device according to claim 1, it is characterized in that: described joint (1) is connected with anode (4) conical surface.
4, a kind of pipe nipple formula oil pipe anti-corrosive device according to claim 1 is characterized in that: described joint (1) and oil pipe and tubing nipple (5) are that the oil pipe standard links and connects.
5, a kind of pipe nipple formula oil pipe anti-corrosive device according to claim 1 is characterized in that: described anode is outer to be chosen in Ф 70-Ф 126mm through size range; The best is Ф 80-Ф 100mm; Selecting through size range in the anode is Ф 70-Ф 120mm, and the best is Ф 70-Ф 80mm.
6, a kind of pipe nipple formula oil pipe anti-corrosive device according to claim 1, it is characterized in that: the total length of described corrosion-preventing device is chosen in 300-700mm; The best is 350-500mm.
7, a kind of pipe nipple formula oil pipe anti-corrosive device according to claim 1, it is characterized in that: the conical surface tapering that described joint (1) is connected with anode (4) is chosen in 15 °-90 °; Optimal selection is at 30 °-60 °.
8, a kind of pipe nipple formula oil pipe anti-corrosive device according to claim 1, it is characterized in that: described anode material is a magnesium alloy materials.
9, a kind of pipe nipple formula oil pipe anti-corrosive device according to claim 1, it is characterized in that: described anode material is a magnesium alloy materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02262151 CN2588041Y (en) | 2002-09-02 | 2002-09-02 | Short-section type corrosion-resisting device for oil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02262151 CN2588041Y (en) | 2002-09-02 | 2002-09-02 | Short-section type corrosion-resisting device for oil pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2588041Y true CN2588041Y (en) | 2003-11-26 |
Family
ID=33728780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02262151 Expired - Lifetime CN2588041Y (en) | 2002-09-02 | 2002-09-02 | Short-section type corrosion-resisting device for oil pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2588041Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103111446A (en) * | 2013-03-07 | 2013-05-22 | 天津亿利科能源科技发展股份有限公司 | Method for handling inner scaling problem of offshore production platform pipeline device |
| CN106801583A (en) * | 2016-12-29 | 2017-06-06 | 中国石油天然气股份有限公司 | Anti-corrosion safety tubing coupling |
| CN110847826A (en) * | 2019-10-12 | 2020-02-28 | 中国石油天然气股份有限公司 | A kind of anti-corrosion casing pipe string and using method thereof |
| CN111032995A (en) * | 2017-08-18 | 2020-04-17 | 通用电气(Ge)贝克休斯有限责任公司 | Corrosion protection element for downhole connections |
| CN111425149A (en) * | 2019-10-10 | 2020-07-17 | 陕西鑫华成石油科技有限公司 | Anti-corrosion tubing coupling |
| CN114134507A (en) * | 2021-11-29 | 2022-03-04 | 牡丹江市新翔石油机械有限责任公司 | Magnesium alloy, sacrificial anode device and oil casing pipe potential corrosion prevention device thereof |
-
2002
- 2002-09-02 CN CN 02262151 patent/CN2588041Y/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103111446A (en) * | 2013-03-07 | 2013-05-22 | 天津亿利科能源科技发展股份有限公司 | Method for handling inner scaling problem of offshore production platform pipeline device |
| CN103111446B (en) * | 2013-03-07 | 2015-03-11 | 天津亿利科能源科技发展股份有限公司 | Method for handling inner scaling problem of offshore production platform pipeline device |
| CN106801583A (en) * | 2016-12-29 | 2017-06-06 | 中国石油天然气股份有限公司 | Anti-corrosion safety tubing coupling |
| CN111032995A (en) * | 2017-08-18 | 2020-04-17 | 通用电气(Ge)贝克休斯有限责任公司 | Corrosion protection element for downhole connections |
| CN111425149A (en) * | 2019-10-10 | 2020-07-17 | 陕西鑫华成石油科技有限公司 | Anti-corrosion tubing coupling |
| CN111425149B (en) * | 2019-10-10 | 2022-04-01 | 陕西鑫华成石油科技有限公司 | Anti-corrosion tubing coupling |
| CN110847826A (en) * | 2019-10-12 | 2020-02-28 | 中国石油天然气股份有限公司 | A kind of anti-corrosion casing pipe string and using method thereof |
| CN110847826B (en) * | 2019-10-12 | 2021-04-30 | 中国石油天然气股份有限公司 | Anti-corrosion casing pipe column and using method thereof |
| CN114134507A (en) * | 2021-11-29 | 2022-03-04 | 牡丹江市新翔石油机械有限责任公司 | Magnesium alloy, sacrificial anode device and oil casing pipe potential corrosion prevention device thereof |
| CN114134507B (en) * | 2021-11-29 | 2022-08-02 | 牡丹江市新翔石油机械有限责任公司 | Magnesium alloy, sacrificial anode device and oil casing pipe potential corrosion prevention device thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120902 Granted publication date: 20031126 |