CN2727536Y - Antiscale, paraffin control and corrosion resistant oil pipe with magnetic nano material coating - Google Patents
Antiscale, paraffin control and corrosion resistant oil pipe with magnetic nano material coating Download PDFInfo
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- CN2727536Y CN2727536Y CN 200420063359 CN200420063359U CN2727536Y CN 2727536 Y CN2727536 Y CN 2727536Y CN 200420063359 CN200420063359 CN 200420063359 CN 200420063359 U CN200420063359 U CN 200420063359U CN 2727536 Y CN2727536 Y CN 2727536Y
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- oil
- material coating
- pipe
- wax
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Abstract
The utility model relates to antiscale, paraffin control and corrosion resistant oil pipe with a magnetic nanometer material coating layer. An anti-corrosion coating layer is sprayed on the outer pipe wall of an oil pipe, and a magnetic nanometer material coating layer is sprayed on the inner pipe wall of the oil pipe. The original anti-corrosion performance is reserved, the magnetic nanometer material coating layer is sprayed on the inner pipe wall of the oil pipe, and crude oil is directly contacted with the magnetic nanometer material coating layer of the inner wall of the pipe. The magnetic field is formed in a pipe column by the magnetic nanometer material coating layer to cause the crude oil to be directly contacted with the magnetic field which is formed in the pipe column by the magnetic nanometer material coating layer in the flow process of the crude oil to cause the original state of the crude oil in the pipe column to be changed by the function of the magnetic field. Wax molecules can be polarized in a wax precipitation well bore to suppress crystallization process of the wax in the oil to enable the wax to form a suspension state in the oil to avoid sedimentation of the wax on the oil pipe, underground equipment or oil pipelines. The crystallization condition of the pipe wall can be destroyed by the magnetic nanometer material coating layer, and the speed of scale formation can be reduced. The effect of wax prevention is obvious, the antiscale effect is excellent, and the effect of augmented injection is good.
Description
Technical field:
The utility model belongs to antisepsis oil pipe, specifically is a kind ofly to have anti-wax deposition, good antiscale property, Corrosion Protection, and can increase the magnetic Nano material coating scale-inhibiting wax-proof antisepsis oil pipe of flood effectiveness.
Background technique:
In oil extraction process, paraffinic base oil well especially, because paraffin content height in the crude oil, along with the pit shaft cooling, wall wax deposition and well head diminishes causes stopping production when serious.Oil well is because of after wax deposition stops production, and its wax removal work difficulty is big, labor intensity is big, needs to consume great amount of manpower and material resources.
At present, the oil pipe that oilfield exploitation is used, mostly be and only have Corrosion Protection, and adopt magnetic Nano coating to make the interior crude oil of tubing string change original state through the action of a magnetic field, in the wax deposition pit shaft, can make the wax molecular polarization, thereby suppress the crystallization process of wax, make wax in oil, be state of suspension, avoid in data or actual the use, yet there are no report or use at the magnetic Nano material coating scale-inhibiting wax-proof antisepsis oil pipe that deposits realization wax control purpose on oil pipe and underground equipment or the petroleum pipeline.
Summary of the invention:
The purpose of this utility model is to provide a kind of magnetic Nano material coating scale-inhibiting wax-proof antisepsis oil pipe at the problems referred to above.
The technical solution of the utility model is: magnetic Nano material coating scale-inhibiting wax-proof antisepsis oil pipe is made up of oil pipe, corrosion-inhibiting coating, magnetic Nano material coating, on the outer tube wall of oil pipe, be coated with corrosion-inhibiting coating, be coated with the magnetic Nano material coating on the inner tubal wall of magnetic oil pipe.
Described oil pipe is meant various metal tubes.
In the such scheme, the oil pipe outer tube wall is coated with corrosion-inhibiting coating, has kept the original antiseptic property of oil pipe; In oil pipe inner tubal wall spraying magnetic Nano material coating, allow crude oil directly contact with the magnetic Nano material coating of inner tube wall.The magnetic Nano material coating forms magnetic field in tubing string, make crude oil in flow process, the magnetic field that directly contact the magnetic Nano material coating, in tubing string, forms, make the interior crude oil of tubing string change original state through the action of a magnetic field, in the wax deposition pit shaft, can make the wax molecular polarization, suppress the crystallization process of wax in the oil, make wax in oil, be state of suspension, avoid on oil pipe and underground equipment or petroleum pipeline, depositing.
The magnetic Nano material coating can be destroyed the tube wall crystallization condition, reduces tube wall incrustation speed.At the salinity height, easily in the well of fouling, high salinity solution is through the action of a magnetic field in the pit shaft, inorganic ion is that the gibbs free energy change of solid phase is big by liquid phase transition, interface tension force diminishes, according to Thomson-Kelvin formula, greatly reduce before the more unmagnetized effect of the critical radius that inorganic salts are separated out, thereby under identical saturation state, more nucleus can appear, crystalline growth velocity is accelerated, and the crystal grain of formation is many more, and the crystal grain radius that grows up to is more little, the formation of crystal grain in this solution, make wherein inorganic salt concentration reduction, destroyed the tube wall crystallization condition, reduce tube wall incrustation speed, forming a large amount of small grains in solution will take away with solution, and not tie in tube wall.The magnetic Nano material coating can delay the snaking cycle, reduces and changes the tubing string number of times, increases economic efficiency.
In the oil-field flooding process, the corrosion of water injection equipment and pipeline produces the oxide of some iron, and these impurity cause the obstruction of water filling layer with shutoff diafiltration face.According to the definition of filter membrane coefficient, if corrosion products is many more in the water, filter membrane stops up serious more, and few more by the filter membrane water yield, then the filter membrane coefficient is more little; Otherwise if corrosion products is few more in the water, then the filter membrane coefficient is big more.It is that magnetic field can be except that the ferrormagnetic substance of the suspension that is produced by pipeline corrosion in anhydrating that magnetic treatment improves one of filter membrane coefficient reason.When its through in magnetic coating oil pipe, will be absorbed by magnetic field, reduced its obstruction to stratum diafiltration face.In addition, the action of a magnetic field of certain intensity makes the planes of molecules of diamagnetic material in the liquid state arrange by flow direction, be that flowing of water becomes in order from unordered, thereby easier micropore by filter membrane, improved the filter membrane coefficient, and orderly current also enter the stratum by underground blowhole, raising injection rate, and then the integration capability of raising oilfield exploitation easily.
Characteristics of the present utility model and beneficial effect:
1, wax control result is remarkable.Trace metal impurities issues living physical and chemical modified at the action of a magnetic field in the crude oil of oil pipe owing to flow through, produce a large amount of additional host crystal and asphalt colloid wax deposition flotation carrying article, they are small discharge bubble on the microimpurity of colloid, formed pitch-colloid-paraffin precipitation in well head flotation carrying article, tubing wall does not have wax and separates out.
2, scale inhibition effect excellence.By optimizing magnetic parameter, adjust ratio and the form of magnetic material in coating, in the fouling well, use the magnetic Nano coating tubing targetedly, the action of a magnetic field destroys the inorganic salts crystallization condition, reduces scale velocity, alleviates tube wall incrustation.
3, augmented injection is respond well.By to different water sample analysis; optimize magnetic parameter; can reduce and inject water large particle mechanical admixture, suppress the saprophytic bacteria breeding, and flowing of water become in order by unordered; reach the reduction surface tension; improve the rock core water absorption, and this oil pipe has Corrosion Protection, therefore aspect the oil field development augmented injection; can improve flood effectiveness, improve comprehensive recovery rate.
Description of drawings:
Fig. 1 is a structure sectional view of the present utility model.
Among the figure: 1 oil pipe, 2 corrosion-inhibiting coatings, 3 magnetic Nano material coatings.
Embodiment:
Fig. 1 provides structure sectional view of the present utility model, select the long 9.7m of 73 * 5.5mm oil pipe for use, pretreatment can be carried out with chemical method or sintering process in oil pipe inside and outside wall surface, after treatment, adopt the electrostatic coating method anticorrosive paint to be sprayed on oil pipe 1 outer wall, form corrosion-inhibiting coating 2 on the outer wall of oil pipe 1, adopt hot blast stove, oven (electric heating) or other mode of heating solidify.Magnetic Nano coating 3 mainly comprises modified epoxy, magnetic fillers, modified epoxy has corrosion resistance preferably, make main film forming matter, magnetic fillers is by the nano combined matter base material of magnetic metal oxide, add the aided nano base-material by the formulated magnetic Nano coating of technological requirement, adopt the method for airless spraying (also can adopt pressurized air, electrostatic spraying) magnetic Nano coating to be sprayed on the inwall of oil pipe 1, solidify the back and form magnetic Nano coating 3, play the scale-inhibiting wax-proof antisepsis in oil pipe 1, coating thickness adopts thickness meter to detect.
Claims (1)
1, a kind of magnetic Nano material coating scale-inhibiting wax-proof antisepsis oil pipe is coated with corrosion-inhibiting coating (2) on the outer tube wall of oil pipe (1), it is characterized in that: be coated with magnetic Nano material coating (3) on the inner tubal wall of oil pipe (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420063359 CN2727536Y (en) | 2004-08-29 | 2004-08-29 | Antiscale, paraffin control and corrosion resistant oil pipe with magnetic nano material coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420063359 CN2727536Y (en) | 2004-08-29 | 2004-08-29 | Antiscale, paraffin control and corrosion resistant oil pipe with magnetic nano material coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2727536Y true CN2727536Y (en) | 2005-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420063359 Expired - Fee Related CN2727536Y (en) | 2004-08-29 | 2004-08-29 | Antiscale, paraffin control and corrosion resistant oil pipe with magnetic nano material coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2727536Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100465495C (en) * | 2006-12-30 | 2009-03-04 | 徐章钰 | Method for making pipe with bionic self-cleaning inner-surface and inner surface structure of pipe |
| CN102876093A (en) * | 2012-10-15 | 2013-01-16 | 北京赛科康仑环保科技有限公司 | Composite metal coating and preparation method and application thereof |
| CN104209975A (en) * | 2013-06-04 | 2014-12-17 | 赵俊儒 | Plate mortising (grooving) machine |
| CN107477267A (en) * | 2017-08-31 | 2017-12-15 | 巢湖鹏远金属焊管有限公司 | A kind of anti-blocking pipeline |
| CN107556791A (en) * | 2017-08-31 | 2018-01-09 | 巢湖鹏远金属焊管有限公司 | A kind of preparation technology of automatically cleaning pipeline external erosion shield |
-
2004
- 2004-08-29 CN CN 200420063359 patent/CN2727536Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100465495C (en) * | 2006-12-30 | 2009-03-04 | 徐章钰 | Method for making pipe with bionic self-cleaning inner-surface and inner surface structure of pipe |
| CN102876093A (en) * | 2012-10-15 | 2013-01-16 | 北京赛科康仑环保科技有限公司 | Composite metal coating and preparation method and application thereof |
| CN102876093B (en) * | 2012-10-15 | 2016-04-06 | 北京赛科康仑环保科技有限公司 | A kind of composite metal coated, Its Preparation Method And Use |
| CN104209975A (en) * | 2013-06-04 | 2014-12-17 | 赵俊儒 | Plate mortising (grooving) machine |
| CN107477267A (en) * | 2017-08-31 | 2017-12-15 | 巢湖鹏远金属焊管有限公司 | A kind of anti-blocking pipeline |
| CN107556791A (en) * | 2017-08-31 | 2018-01-09 | 巢湖鹏远金属焊管有限公司 | A kind of preparation technology of automatically cleaning pipeline external erosion shield |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |