CN2918446Y - Oil well and pipeline corrosion protection cathodic protection apparatus - Google Patents
Oil well and pipeline corrosion protection cathodic protection apparatus Download PDFInfo
- Publication number
- CN2918446Y CN2918446Y CN 200620090695 CN200620090695U CN2918446Y CN 2918446 Y CN2918446 Y CN 2918446Y CN 200620090695 CN200620090695 CN 200620090695 CN 200620090695 U CN200620090695 U CN 200620090695U CN 2918446 Y CN2918446 Y CN 2918446Y
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- China
- Prior art keywords
- oil well
- pipeline
- potentiostat
- anode
- cathodic
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- Expired - Fee Related
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- Prevention Of Electric Corrosion (AREA)
Abstract
The utility model relates to an anti-corrosion cathodic protection device for oil well and pipeline, belonging to an anti-corrosion device. A potentiostat, an anode bed and a distribution cabinet are arranged in the cathodic protection station, and the anode of the potentiostat is connected with the anode bed. The cathode of the potentiostat is connected with the oil well circuit via the distribution cabinet. And the cathode of the potentiostat can also be connected with a buried pipe circuit via the distribution cabinet, and the buried pipes are connected with the buried oil well pipeline. The anode bed comprises a plurality of high silicon cast-irons, and a plurality of vent holes are positioned on the anode bed. The resistance-reduction stuffing is arranged in the anode bed. The utility model has the advantages of simple structure, convenience, low cost and reliability, which effectively reduces the pipeline corrosion speed, extends service life of the pipeline, reduces production cost and improves the economic benefits.
Description
Technical field
The utility model belongs to erosion protection system, particularly a kind of oil well and pipeline anticorrosion cathodic protector.
Background technology
Present existing anti-corrosion measure is that tube wall inside and outside the pipeline is scribbled other methods such as coating, but don't work what means and method when pipeline is embedded in the soil, can be pushed in the construction, be damaged, because protective layer is destroyed, the various corrosive mediums in the soil are very serious to pipeline; In addition, the sulphate reducing bacteria in the soil is added in oil well casing is subjected to stratum, the earth's crust in installation process extruding, also has corrosive medium that oil well casing has been constituted extremely serious corrosion.In sum, pipeline that is corroded and sleeve pipe need a large amount of the replacing, have increased working strength of workers, have strengthened production cost.Environment protection and safety in production have been had a strong impact on.
Summary of the invention
The utility model is intended to overcome the deficiencies in the prior art, and a kind of oil well and pipeline anticorrosion cathodic protector are provided.
Oil well of the present utility model and pipeline anticorrosion cathodic protector are to be provided with potentiostat and anode groundbed in cathodic protection station; The positive pole of potentiostat is connected with anode groundbed, and the electronics of generation is transferred to protected pipeline and oil well casing by soil as conductor, and protected object current potential is brought up to about-0.8 volt～-1.4 volts, has reached the protection against corrosion purpose.The sleeve pipe circuit of the negative pole of potentiostat and pipeline and oil well has connected and composed the loop.
Further improve as the utility model, also be provided with the shunting cabinet in cathodic protection station, purpose is that a shunting cabinet can be protected some pipelines and oil well casing, has reduced the quantity of potentiostat.The negative pole of potentiostat is connected with the oil well circuit through the shunting cabinet, protection oil well casing and pipeline.
According to actual needs, the negative pole of above-mentioned potentiostat is connected with the buried pipeline circuit through the shunting cabinet, and buried pipeline is connected with the oil well pipeline.
The utility model oil well and pipeline anticorrosion cathodic protector and other protector have difference in essence, do not have isolating joint on buried pipeline.
Anode groundbed of the present utility model is made up of many high silicon cast iron, is provided with venting hole on anode groundbed.The friction reducer filler is housed in anode groundbed.
Oil well of the present utility model and the pipeline anticorrosion cathodic protector is simple in structure, easy to use, cost is low, reliable, reduced effectively pipeline erosion rate, prolong work-ing life of pipeline, reduced production cost, improved economic benefit.
Description of drawings
Figure of description is the structural representation of oil well of the present utility model and pipeline anticorrosion cathodic protector.
Embodiment
Embodiment 1
Oil well of the present utility model and pipeline anticorrosion cathodic protector are to be made of cathodic protection station 1, anode groundbed 2, oil well 3.Wherein, in cathodic protection station 1, be provided with potentiostat 4, anode groundbed 2 and shunting cabinet 5; The positive pole of potentiostat 4 is connected with anode groundbed 2 circuit, and anode groundbed 2 is made up of many high silicon cast iron 7, is provided with venting hole 8 on anode groundbed 2; Filler 9 is housed in anode groundbed 2.The negative pole of potentiostat 4 is connected with oil well 3 circuit through shunting cabinet 5.The negative pole of potentiostat 4 also can be connected with buried pipeline 6 circuit through shunting cabinet 5, and buried pipeline 6 is connected with oil well 3 pipelines again.
Embodiment 2
Oil well of the present utility model and pipeline anticorrosion cathodic protector; reach near seven mouthfuls of oil wells as a protection system with the pipeline under the metering plant; from seven mouthfuls of suitable positions 100 meters of anode groundbeds are being installed, are being provided electric current with the potentiostat of a 100V/100A.Divide the electric current of potentiostat seven the tunnel to deliver to each well head with a shunting cabinet again, and control every road size of current.When the potentiostat total voltage is 38V, when electric current reaches 48A～45A, record sleeve bottom (150～200 meters) current potential to reach-more than the 0.95V, make 0～200 meter oil well casing reach the rot-resistant purpose.
Claims (4)
1, oil well and pipeline anticorrosion cathodic protector are to be made of cathodic protection station (1), anode groundbed (2), oil well (3), it is characterized in that being provided with in the cathodic protection station (1) potentiostat (4) and anode groundbed (2); The positive pole of potentiostat (4) is connected with anode groundbed (2) circuit, and the negative pole of potentiostat (4) is connected with oil well (3) circuit.
2, oil well as claimed in claim 1 and pipeline anticorrosion cathodic protector is characterized in that being provided with in the cathodic protection station (1) shunting cabinet (5), and the negative pole of potentiostat (4) is connected with oil well (3) circuit through shunting cabinet (5).
3, oil well as claimed in claim 1 or 2 and pipeline anticorrosion cathodic protector is characterized in that the negative pole of potentiostat (4) is connected with buried pipeline (6) circuit through shunting cabinet (5), and buried pipeline (6) is connected with oil well (3) pipeline.
4, oil well as claimed in claim 1 or 2 and pipeline anticorrosion cathodic protector is characterized in that anode groundbed (2) is made up of many high silicon cast iron (7), are provided with venting hole (8) on anode groundbed (2); Filler (9) is arranged in anode groundbed (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620090695 CN2918446Y (en) | 2006-05-01 | 2006-05-01 | Oil well and pipeline corrosion protection cathodic protection apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620090695 CN2918446Y (en) | 2006-05-01 | 2006-05-01 | Oil well and pipeline corrosion protection cathodic protection apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2918446Y true CN2918446Y (en) | 2007-07-04 |
Family
ID=38216260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620090695 Expired - Fee Related CN2918446Y (en) | 2006-05-01 | 2006-05-01 | Oil well and pipeline corrosion protection cathodic protection apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2918446Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102959179A (en) * | 2010-06-25 | 2013-03-06 | 贝克休斯公司 | Apparatus and methods for corrosion protection of downhole tools |
| CN104967108A (en) * | 2015-06-30 | 2015-10-07 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | DC power supply system of oil-water well bushing cathode protection anti-corrosion instrument |
| CN106757054A (en) * | 2017-01-24 | 2017-05-31 | 云南大红山管道有限公司 | Parallel ore pulp delivery duct cathodic protection system |
| CN107313721A (en) * | 2017-05-04 | 2017-11-03 | 中石油煤层气有限责任公司 | Pumpingh well impressed current method anti-corrosive apparatus |
| CN108123233A (en) * | 2016-11-30 | 2018-06-05 | 中国石油天然气股份有限公司 | A kind of pipeline AC influence protects stream discharging system |
| CN109112549A (en) * | 2018-09-11 | 2019-01-01 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | A kind of collecting well group cathodic protection system and double anode well fault detection method |
-
2006
- 2006-05-01 CN CN 200620090695 patent/CN2918446Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102959179A (en) * | 2010-06-25 | 2013-03-06 | 贝克休斯公司 | Apparatus and methods for corrosion protection of downhole tools |
| CN104967108A (en) * | 2015-06-30 | 2015-10-07 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | DC power supply system of oil-water well bushing cathode protection anti-corrosion instrument |
| CN104967108B (en) * | 2015-06-30 | 2018-04-03 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | A kind of Casing Failure cathodic protection corrosion protection instrument DC power-supply system |
| CN108123233A (en) * | 2016-11-30 | 2018-06-05 | 中国石油天然气股份有限公司 | A kind of pipeline AC influence protects stream discharging system |
| CN106757054A (en) * | 2017-01-24 | 2017-05-31 | 云南大红山管道有限公司 | Parallel ore pulp delivery duct cathodic protection system |
| CN106757054B (en) * | 2017-01-24 | 2019-09-24 | 云南大红山管道有限公司 | Parallel ore pulp delivery duct cathodic protection system |
| CN107313721A (en) * | 2017-05-04 | 2017-11-03 | 中石油煤层气有限责任公司 | Pumpingh well impressed current method anti-corrosive apparatus |
| CN107313721B (en) * | 2017-05-04 | 2024-02-20 | 中石油煤层气有限责任公司 | External current method anticorrosion device for pumping well |
| CN109112549A (en) * | 2018-09-11 | 2019-01-01 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | A kind of collecting well group cathodic protection system and double anode well fault detection method |
| CN109112549B (en) * | 2018-09-11 | 2023-08-18 | 中国石油天然气集团有限公司 | Cluster well cathode protection system and double-anode well fault detection method |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070704 |