CN201071708Y - Device for using abandoned well as ground bed to protect underground pipes and oil wells - Google Patents
Device for using abandoned well as ground bed to protect underground pipes and oil wells Download PDFInfo
- Publication number
- CN201071708Y CN201071708Y CNU2007200136350U CN200720013635U CN201071708Y CN 201071708 Y CN201071708 Y CN 201071708Y CN U2007200136350 U CNU2007200136350 U CN U2007200136350U CN 200720013635 U CN200720013635 U CN 200720013635U CN 201071708 Y CN201071708 Y CN 201071708Y
- Authority
- CN
- China
- Prior art keywords
- well
- oil
- ground bed
- potentiostat
- pipeline
- 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
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Abstract
The utility model takes discarded oil wells as ground bed for protecting ground pipelines and oil wells, which belongs to an anti-corrosive device. A cathode protection station is provided with a constant potential apparatus and an anode ground bed. The anode of the constant potential apparatus is connected with the circuit of the anode ground bed. The anode ground bed is replaced by discarded oil wells. The cathode of the constant potential apparatus is connected with an oil well, a steel pipeline and a shallow casing pipe circuit separately through a diffluence cabinet. Around wasted oil wells is resistance reducing agent. The utility model has the advantages of simple structure, convenient use, low cost, reliable operation, lowered the corrosion rate of oil well and pipeline, prolonged service life of oil well and pipeline, low production cost and high economic benefit.
Description
Technical field
The utility model belongs to erosion protection system, particularly a kind of device of making groundbed protection underground pipeline and oil well with abandoned well.
Background technology
Oil-water well and the anticorrosion of pipeline are to carry out methods such as tube wall coated inside and outside it anticorrosion at present, but don't work what means and method when pipeline is embedded in the soil, can be extruded in construction, damages, because overcoat is destroyed, the various corrosive mediums in the soil are serious to pipeline corrosion; In addition, oil well casing is subjected to the media such as sulfate reducing bacteria corrosion that the extruding of stratum, the earth's crust adds in the soil oil well casing has been constituted serious corrosion in installation process.The pipeline and the sleeve pipe needs that cause being corroded are changed in a large number, have increased working strength of workers, have strengthened cost of production, have had a strong impact on environmental protection and safety in production.At the problems referred to above, adopt titanium anode and high-silicon cast iron etc. to do anode ground bed now mostly pipeline is carried out cathodic protection, but its cost height, waste of manpower, material resources and financial resources.
Summary of the invention
The utility model purpose purport is in overcoming the deficiencies in the prior art, provide a kind of reduce steel waste, non-environmental-pollution, cost low make the device of groundbed protection underground pipeline and oil well with abandoned well.
The device of making groundbed protection underground pipeline and oil well with abandoned well of the present utility model is to be provided with potentiostat and anode ground bed in cathodic protection station; the positive pole of potentiostat is connected with the anode ground bed circuit; anode ground bed replaces with abandoned well, and the negative pole of potentiostat is connected with the oil-water well circuit.
As further improvement of the utility model, the negative pole of potentiostat is connected with the metallic conduit circuit.
As further improvement of the utility model, in cathodic protection station, be provided with the shunting cabinet, the negative pole of potentiostat is connected with the oil-water well circuit with metallic conduit through the shunting cabinet.
Further improve as of the present utility model, the negative pole of potentiostat is connected with oil-water well, steel pipeline and shallow surface pipe circuit respectively through the shunting cabinet, makes that protection station current potential is more even.
Further improve as of the present utility model, friction reducer is arranged around abandoned well.
Of the present utility model with abandoned well do that the apparatus structure of groundbed protection underground pipeline and oil well is simple, easy to use, cost is low, reliable; reduced effectively oil-water well and pipeline corrosion rate, prolonged application life of oil-water well and pipeline, reduced cost of production, improved economic benefit.
Description of drawings
Figure of description is a structural representation of making the device of groundbed protection underground pipeline and oil well with abandoned well of the present utility model.
The specific embodiment
Embodiment 1
The device of making groundbed protection underground pipeline and oil well with abandoned well of the present utility model is to be provided with potentiostat 2, anode ground bed and shunting cabinet 4 in cathodic protection station 1; the positive pole of potentiostat 2 is connected with the anode ground bed circuit; anode ground bed replaces with abandoned well 3, and the negative pole of potentiostat 2 is connected with oil-water well 5, circuit through shunting cabinet 4.Wherein, around abandoned well 3, there is friction reducer well 9 to fill friction reducer 8.
Embodiment 1
The device of making groundbed protection underground pipeline and oil well with abandoned well of the present utility model is to be provided with potentiostat 2, anode ground bed and shunting cabinet 4 in cathodic protection station 1; the positive pole of potentiostat 2 is connected with the anode ground bed circuit; anode ground bed replaces with abandoned well 3, and the negative pole of potentiostat 2 is connected with shallow surface pipe 7 circuit with steel pipeline 6 through shunting cabinet 4.Wherein, around abandoned well 3, there is friction reducer well 9 to fill friction reducer 8.
Embodiment 3
Around abandoned well, dig diameter downwards and be 6～8 meters, dark 5～12 meters geosyncline, the outer cement sheath of sleeve pipe is removed; On oil well casing, weld 50mm on request
2Epoxy resin cure is used in power lug then, outside vulcanizates with three layers of waterproof film, and the positive pole of potentiostat 2 is connected with power lug circuit on abandoned well 3 sleeve pipes; Spread the thick cobble of 20mm in the bottom of geosyncline, fill up then and ooze sodium type Low ESR friction reducer 8, or abandoned well around the uniform friction reducer well 9 that digs, fill friction reducer 8 in the friction reducer well 9, stratum soil 3 of friction reducer well 9 and abandoned wells is excavated, and makes friction reducer better bring into play electric action.The negative pole of potentiostat 2 is connected with oil-water well 5, steel pipeline 6 and shallow surface pipe 7 circuit respectively through shunting cabinet 4.
Claims (5)
1. the device of making groundbed protection underground pipeline and oil well with abandoned well is to be provided with potentiostat (2) and anode ground bed formation in cathodic protection station (1); the positive pole of potentiostat (2) is connected with the anode ground bed circuit; it is characterized in that anode ground bed replaces with abandoned well (3), the negative pole of potentiostat (2) is connected with oil-water well (5) circuit.
2. as claimed in claim 1ly make the device of groundbed protection underground pipeline and oil well, it is characterized in that the negative pole of potentiostat (2) is connected with the metallic conduit circuit with abandoned well.
3. the device of making groundbed protection underground pipeline and oil well with abandoned well as claimed in claim 1 or 2; it is characterized in that being provided with in the cathodic protection station (1) shunting cabinet (4), the negative pole of potentiostat (2) is connected with oil-water well (5) circuit with metallic conduit through shunting cabinet (4).
4. as claimed in claim 3ly make the device of groundbed protection underground pipeline and oil well, it is characterized in that the negative pole of potentiostat (2) is connected with oil-water well (5), steel pipeline (6) and shallow surface pipe (7) circuit respectively through shunting cabinet (4) with abandoned well.
5. as claimed in claim 1ly make the device of groundbed protection underground pipeline and oil well, it is characterized in that friction reducer (8) is arranged around abandoned well (3) with abandoned well.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200136350U CN201071708Y (en) | 2007-08-01 | 2007-08-01 | Device for using abandoned well as ground bed to protect underground pipes and oil wells |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200136350U CN201071708Y (en) | 2007-08-01 | 2007-08-01 | Device for using abandoned well as ground bed to protect underground pipes and oil wells |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201071708Y true CN201071708Y (en) | 2008-06-11 |
Family
ID=39550266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200136350U Expired - Fee Related CN201071708Y (en) | 2007-08-01 | 2007-08-01 | Device for using abandoned well as ground bed to protect underground pipes and oil wells |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201071708Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110863206A (en) * | 2019-11-15 | 2020-03-06 | 中国石油化工股份有限公司 | Method for treating scrapped metal pipeline |
-
2007
- 2007-08-01 CN CNU2007200136350U patent/CN201071708Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110863206A (en) * | 2019-11-15 | 2020-03-06 | 中国石油化工股份有限公司 | Method for treating scrapped metal pipeline |
| CN110863206B (en) * | 2019-11-15 | 2021-11-19 | 中国石油化工股份有限公司 | Method for treating scrapped metal pipeline |
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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: 20080611 |