CN202492582U - Casing anode protector - Google Patents
Casing anode protector Download PDFInfo
- Publication number
- CN202492582U CN202492582U CN2011202782486U CN201120278248U CN202492582U CN 202492582 U CN202492582 U CN 202492582U CN 2011202782486 U CN2011202782486 U CN 2011202782486U CN 201120278248 U CN201120278248 U CN 201120278248U CN 202492582 U CN202492582 U CN 202492582U
- Authority
- CN
- China
- Prior art keywords
- sacrificial anode
- sleeve pipe
- casing
- termination
- utility
- 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
- 230000001012 protector Effects 0.000 title abstract 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract description 3
- 239000000956 alloy Substances 0.000 abstract description 3
- 239000004411 aluminium Substances 0.000 abstract description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052782 aluminium Inorganic materials 0.000 abstract description 3
- 229910052749 magnesium Inorganic materials 0.000 abstract description 3
- 239000011777 magnesium Substances 0.000 abstract description 3
- 239000003129 oil well Substances 0.000 abstract description 3
- 239000011701 zinc Substances 0.000 abstract description 3
- 229910052725 zinc Inorganic materials 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 239000011651 chromium Substances 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000003487 electrochemical reaction Methods 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Images
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- Prevention Of Electric Corrosion (AREA)
Abstract
The utility model relates to an oil field anticorrosion device, and particularly relates to an oil well casing anode protector. The casing anode protector comprises an inner casing, a sacrificial anode, and end casings; the outer wall of the inner casing is sleeved by the end casings and the sacrificial anode; the two end casings are located at two sides of the sacrificial anode; and the sacrificial anode is made of an alloy material formed by magnesium, zinc, aluminium and chromium. The utility model is simple in structure, convenient for manufacture, low in cost, good in anticorrosion effect, and long in anticorrosion time.
Description
Technical field
The utility model relates to a kind of oil field anticorrosion equipment, is specifically related to oil well casing anodic protection device.
Background technology
In the oil production process, produced liquid in oil well is owing to be rich in Cl
-, SO
4 2-, CO
3 2-, Na
+, K
+, Ca
2+Plasma, thus electrolyte solution formed, simultaneously because of side-abrasion of rod string; Produce heat energy at the Casing Failure wearing surface; Thereby make the activation of sleeve surface iron molecule, friction place produces potential difference with friction place not, thereby form electrochemical reaction Casing Failure is caused the electrochemical reaction corrosion; Cause Casing Failure short work-ing life, oil pipe perforation and rod broken phenomenon frequently take place.
Summary of the invention
The object of the present invention is to provide a kind of simple in structure, the effective uncorroded sleeve pipe anodic protection of protective casing device.
The technical scheme of the utility model is:
Sleeve pipe anodic protection device comprises inner sleeve, sacrificial anode, the termination sleeve pipe; Termination sleeve pipe and sacrificial anode are enclosed within on the outer wall of inner sleeve; Two termination sleeve pipes are positioned at the both sides of sacrificial anode, and wherein, sacrificial anode is that the alloy material that magnesium, zinc, aluminium and chromium form is processed.
Sacrificial anode is cylindrical, and the internal diameter of sacrificial anode is identical with the external diameter of inner sleeve.
On the sleeve pipe of termination jackscrew is set, jackscrew is fixed together termination sleeve pipe and inner sleeve.
The principle of work of the utility model is: sleeve pipe anodic protection device be lowered in the oil and water well after Casing Failure is connected; In the electrolyte solution of down-hole; Sacrificial anode and Casing Failure form a macroscopical battery, and sacrificial anode is the anode of battery, and Casing Failure is the negative electrode of battery; Sacrificial anode provides cathodic current to Casing Failure under the effect of macroscopical battery; The oil and water well cover is carried out cathodic polarization, and the casing corrosion galvanic action is stopped, and has fundamentally suppressed the Casing Failure galvanic corrosion.
The beneficial effect of the utility model is: the utility model provides a sacrificial anode for the oil and water well sleeve pipe, thereby prevents that Casing Failure from receiving galvanic corrosion, prolongs the work-ing life of Casing Failure, prevents that oil pipe perforation and rod broken phenomenon from frequently taking place; The utility model is simple in structure, and is easily manufactured, and cost is low, and anticorrosion ability is good and the time is long.
Description of drawings
Fig. 1 is the structural representation of the utility model.
1 inner sleeve, 2 sacrificial anodes, 3 termination sleeve pipes, 4 jackscrews.
Embodiment
Sleeve pipe anodic protection device comprises inner sleeve 1, sacrificial anode 2, termination sleeve pipe 3, and sacrificial anode 2 is cylindrical, and the internal diameter of sacrificial anode 2 is identical with the external diameter of inner sleeve 1.Termination sleeve pipe 3 is enclosed within on the outer wall of inner sleeve 1 with sacrificial anode 2, and two termination sleeve pipes 3 are positioned at the both sides of sacrificial anode 2, and jackscrew 4 is set on the termination sleeve pipe 3,, jackscrew 4 is fixed together termination sleeve pipe 3 and inner sleeve 1.Sacrificial anode 2 is processed for the alloy material that magnesium, zinc, aluminium and chromium form.
Should be noted that at last: above embodiment only in order to the explanation the utility model technical scheme but not to its restriction; Although with reference to preferred embodiment the utility model has been carried out detailed explanation, the those of ordinary skill in affiliated field is to be understood that: still can make amendment to the embodiment of the utility model perhaps is equal to replacement to the part technical characterictic; And not breaking away from the spirit of the utility model technical scheme, it all should be encompassed in the middle of the technical scheme scope that the utility model asks for protection.
Claims (3)
1. sleeve pipe anodic protection device is characterized in that, comprises inner sleeve, sacrificial anode, termination sleeve pipe, and termination sleeve pipe and sacrificial anode are enclosed within on the outer wall of inner sleeve, and two termination sleeve pipes are positioned at the both sides of sacrificial anode.
2. according to the said sleeve pipe anodic protection of claim 1 device, it is characterized in that sacrificial anode is cylindrical, the internal diameter of sacrificial anode is identical with the external diameter of inner sleeve.
3. according to the said sleeve pipe anodic protection of claim 1 device, it is characterized in that on the sleeve pipe of termination jackscrew is set, jackscrew is fixed together termination sleeve pipe and inner sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202782486U CN202492582U (en) | 2011-08-02 | 2011-08-02 | Casing anode protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202782486U CN202492582U (en) | 2011-08-02 | 2011-08-02 | Casing anode protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202492582U true CN202492582U (en) | 2012-10-17 |
Family
ID=46998818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202782486U Expired - Fee Related CN202492582U (en) | 2011-08-02 | 2011-08-02 | Casing anode protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202492582U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103132083A (en) * | 2013-01-30 | 2013-06-05 | 青州市春晖科技发展有限公司 | Corrosion-resistant anodic protection ring for sleeve |
| CN105618716A (en) * | 2016-03-29 | 2016-06-01 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | Zinc anode material and oil casing electric conduction connecting manner and machining method |
| CN110869726A (en) * | 2017-07-07 | 2020-03-06 | 恩德莱斯和豪瑟尔欧洲两合公司 | Corrosion protection elements for field devices |
-
2011
- 2011-08-02 CN CN2011202782486U patent/CN202492582U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103132083A (en) * | 2013-01-30 | 2013-06-05 | 青州市春晖科技发展有限公司 | Corrosion-resistant anodic protection ring for sleeve |
| CN105618716A (en) * | 2016-03-29 | 2016-06-01 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | Zinc anode material and oil casing electric conduction connecting manner and machining method |
| CN110869726A (en) * | 2017-07-07 | 2020-03-06 | 恩德莱斯和豪瑟尔欧洲两合公司 | Corrosion protection elements for field devices |
| US11340126B2 (en) | 2017-07-07 | 2022-05-24 | Endress+Hauser SE+Co. KG | Corrosion-protection element for a field device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Sichuan Chongtai Petroleum Machinery Co., Ltd. Assignor: Puyang Zhongfa Petroleum Machinery Co.,Ltd. Contract record no.: 2013510000096 Denomination of utility model: Anode protector of oil sleeve Granted publication date: 20121017 License type: Exclusive License Record date: 20130923 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121017 Termination date: 20150802 |
|
| EXPY | Termination of patent right or utility model |