CN102003148A - Oil casing pipe resisting CO2 corrosion and production method thereof - Google Patents
Oil casing pipe resisting CO2 corrosion and production method thereof Download PDFInfo
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- CN102003148A CN102003148A CN2010102846651A CN201010284665A CN102003148A CN 102003148 A CN102003148 A CN 102003148A CN 2010102846651 A CN2010102846651 A CN 2010102846651A CN 201010284665 A CN201010284665 A CN 201010284665A CN 102003148 A CN102003148 A CN 102003148A
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- 238000005260 corrosion Methods 0.000 title claims abstract description 39
- 230000007797 corrosion Effects 0.000 title claims abstract description 30
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 26
- 239000011159 matrix material Substances 0.000 claims abstract description 68
- 238000000034 method Methods 0.000 claims abstract description 38
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 34
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 34
- 239000010937 tungsten Substances 0.000 claims abstract description 34
- 238000004070 electrodeposition Methods 0.000 claims abstract description 19
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000008367 deionised water Substances 0.000 claims abstract description 11
- 238000011282 treatment Methods 0.000 claims abstract description 10
- 230000003213 activating effect Effects 0.000 claims abstract description 7
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 6
- 239000004317 sodium nitrate Substances 0.000 claims abstract description 6
- 235000010344 sodium nitrate Nutrition 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 230000008569 process Effects 0.000 claims description 23
- 238000005238 degreasing Methods 0.000 claims description 20
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 15
- 239000012530 fluid Substances 0.000 claims description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 230000004913 activation Effects 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 10
- 239000011734 sodium Substances 0.000 claims description 10
- 238000000151 deposition Methods 0.000 claims description 9
- 230000008021 deposition Effects 0.000 claims description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 8
- 229910045601 alloy Inorganic materials 0.000 claims description 7
- 239000000956 alloy Substances 0.000 claims description 7
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 7
- 229910052742 iron Inorganic materials 0.000 claims description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 5
- 238000005422 blasting Methods 0.000 claims description 5
- 229910017052 cobalt Inorganic materials 0.000 claims description 5
- 239000010941 cobalt Substances 0.000 claims description 5
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 5
- 239000002659 electrodeposit Substances 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 claims description 5
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 229910052698 phosphorus Inorganic materials 0.000 claims description 5
- 239000011574 phosphorus Substances 0.000 claims description 5
- 239000004576 sand Substances 0.000 claims description 5
- 239000001488 sodium phosphate Substances 0.000 claims description 5
- 229910000162 sodium phosphate Inorganic materials 0.000 claims description 5
- XMVONEAAOPAGAO-UHFFFAOYSA-N sodium tungstate Chemical compound [Na+].[Na+].[O-][W]([O-])(=O)=O XMVONEAAOPAGAO-UHFFFAOYSA-N 0.000 claims description 5
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 abstract description 3
- 239000003208 petroleum Substances 0.000 abstract description 2
- 238000001994 activation Methods 0.000 abstract 1
- 229910000808 amorphous metal alloy Inorganic materials 0.000 abstract 1
- 238000002791 soaking Methods 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000008186 active pharmaceutical agent Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000005121 nitriding Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000005275 alloying Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- PXHVJJICTQNCMI-LZFNBGRKSA-N nickel-65 Chemical compound [65Ni] PXHVJJICTQNCMI-LZFNBGRKSA-N 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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Abstract
The invention discloses an oil casing pipe resisting CO2 corrosion and a production method thereof, relating to petroleum mechanical equipment and a production method thereof, and aiming to provide an oil casing pipe which can economically and effectively resist CO2 corrosion, has compact and smooth surface, wear resistance, anticorrosion, low scaling and paraffinning probability and a production method thereof. The production method of the oil casing pipe comprises the following steps: (1) processing a tubular matrix of an oil outlet casing pipe; and processing external treaded parts at the two ends of the tubular matrix; (2) carrying out oil-removing and dust-removing treatment on the tubular matrix; (3) performing the activating treatment on the treated tubular matrix by adopting a sodium nitrate activation process; and (4) rinsing the tubular matrix after activating treatment through deionized water, soaking into an electro-deposition tank, and coating one layer of tungsten-based amorphous alloy on the tubular matrix by adopting an electro-deposition method.
Description
Technical field
The present invention relates to a kind of petroleum machinery equipment, particularly relate to a kind of tubing and casing and production method thereof.
Background technology
In the last few years, each major oil and gas field had all run into CO in the exploitation of oil-gas field process both at home and abroad
2Etching problem.This not only badly influences the output of oil gas, also often causes various security incidents, hinders the ordinary production of oil gas field, causes enormous economic loss.Prior art mainly contains anti-CO both at home and abroad at present
2Corrosive Materia technology and process for treating surface.The former is by adding anti-CO in steel
2The alloying element of corrosion reaches erosion-resisting purpose, and these steel mainly are the stainless steels of a series of high Cr of containing (13%, 22～25%).Its advantage is because the interpolation of alloying element, and material itself is anticorrosion, need not other ancillary facilities in the period of validity and underground work is not had influence, but it costs an arm and a leg, and is the most cheap also near 10 times of common iron, less economical.What process for treating surface was commonly used is to apply organic anti-corrosion material at the tubing and casing inner surface, and there are defectives such as coating hardness is low, wear-and corrosion-resistant is relatively poor, coating is easily peeled off, and application life is short in this method.In addition, also patent disclosure is arranged nitriding handle and can make the tubing and casing anticorrosion antiwear, in fact the nitriding processing only improves case hardness and strengthens its abrasion resistance only, corrosion resistance there is not too big beneficial effect, nitriding is simultaneously handled and need be carried out under hot environment, can damage the basic material mechanical property.
Summary of the invention
The technical problem to be solved in the present invention provide a kind of can the anti-CO of economical and effective
2Corrosion, smooth, the wear-and corrosion-resistant of surface compact, fouling, the low tubing and casing of wax deposition probability and production method thereof.
The anti-CO of the present invention
2The corrosion oil annular pipe comprises tubular matrix, and the two ends of described tubular matrix are provided with linkage section, is covered with tungsten based amorphous attitude alloy-layer on the inside and outside surface of wherein said tubular matrix.
The anti-CO of the present invention
2Corrosion oil annular pipe, wherein said linkage section are male thread portion.
The anti-CO of the present invention
2Corrosion oil annular pipe, the thickness of wherein said tungsten based amorphous attitude alloy-layer are 20～80 μ m.
The anti-CO of the present invention
2The corrosion oil annular pipe, the mass percent of wherein said tungsten based amorphous attitude composition that alloy-layer comprises is: tungsten 10%～55%, nickel 15%～65%, iron 10%～15%, cobalt 6%～12%, all the other are phosphorus and impurity.
The anti-CO of the present invention
2The corrosion oil annular pipe, wherein said tungsten based amorphous attitude alloy-layer is that long-range is unordered, the structure of shortrange order.
The anti-CO of the present invention
2The production method of corrosion oil annular pipe, carry out according to following steps:
(1) processes the tubing and casing tubular matrix, process male thread portion at its two ends;
(2) tubular matrix is carried out oil removing, processing of rust removing;
(3) adopt the sodium nitrate activating process that the tubular matrix through above-mentioned processing is carried out activation processing;
(4) tubular matrix after the activation processing is immersed after rinsed with deionized water in the galvanic deposition cell, adopt the method for electro-deposition to make tubular matrix coat the tungsten based amorphous attitude alloy of one deck.
The anti-CO of the present invention
2The component of electrodeposit liquid in the production method of corrosion oil annular pipe, wherein said step (4): sodium tungstate 18～155g/L, nickelous sulfate 30～140g/L, inferior sodium phosphate 35～210g/L, citric acid 60～90g/L; Current density: 10～220mA/cm
3PH value: 7.5～9; Temperature: 40～80 ℃; Electrodeposition time is 2～4h.
The anti-CO of the present invention
2The production method of corrosion oil annular pipe adopts electrolytic degreasing to handle to tubular matrix in the wherein said step (2), feeds 5～10A/cm in 50～80 ℃ degreasing fluid
3Electric current, and be incubated 5～8min; The composition of degreasing fluid is: the NaOH of 0.7～1.2mol/L, the Na of 0.3～0.5mol/L
2CO
3, 0.08～0.25mol/L Na
2SiO
3
The anti-CO of the present invention
2The production method of corrosion oil annular pipe uses washed with de-ionized water to remove degreasing fluid to the tubular matrix after the oil removal treatment in the wherein said step (2), adopts the compressed air blasting method that tubular matrix is carried out processing of rust removing then, sand particle diameter 20～40 orders.
The anti-CO of the present invention
2The production method of corrosion oil annular pipe comprises also that wherein step (5) is incubated 0.5～2 hour with the tubular matrix after the electrodeposition process down at 150 ℃～700 ℃ and heat-treats.
The anti-CO of the present invention
2Corrosion oil annular pipe and production method difference from prior art thereof are the anti-CO of the present invention
2Corrosion oil annular pipe and production method thereof are on the basis that does not change tubing and casing matrix mechanical property, and the method by electro-deposition coats the tungsten based amorphous attitude alloy-layer of one deck at tubing and casing matrix surfaces externally and internally.Because it is unordered that tungsten based amorphous attitude alloy has long-range, the structure of shortrange order, compact structure, isotropism does not have crystal boundary and dislocation, thereby alloy-layer has microhardness height, good, the acid-alkali-corrosive-resisting of abrasion resistance, and, has very excellent anti-H with advantages such as the tubing and casing basal body binding force are good
2S, CO
2, Cl
-Deng corrosive power, more adapt to field operation construction than other tubing and casing.In addition, owing to just carry out corrosion-resistant treatments on the tubing and casing surface of common material, the cost increase seldom is lower than the tubing and casing that adopts the high stainless steel that contains Cr to make, and economy is very good.
Below in conjunction with accompanying drawing to anti-CO of the present invention
2Corrosion oil annular pipe and production method thereof are described further.
Description of drawings
Fig. 1 is the anti-CO of the present invention
2The front view of corrosion oil annular pipe.
The specific embodiment
According to the anti-CO of the following step production the present invention
2The corrosion oil annular pipe:
(1) adopts API common oil casing steel J55 to process the tubing and casing tubular matrix, process male thread portion at its two ends.
(2) tubular matrix is carried out electrolytic degreasing and handle, in 50 ℃ degreasing fluid, feed 8A/cm
3Electric current, and the insulation 8min, the composition of degreasing fluid is: the NaOH of 0.7mol/L, the Na of 0.4mol/L
2CO
3, 0.25mol/L Na
2SiO
3Use washed with de-ionized water to remove degreasing fluid to the tubular matrix after the oil removal treatment, adopt the compressed air blasting method that tubular matrix is carried out processing of rust removing then, sand particle diameter 20 orders.
(3) adopt the sodium nitrate activating process that the tubular matrix through above-mentioned processing is carried out activation processing, make the tubular matrix surface expose fresh metal level, thereby improve deposition layer and basal body binding force.
(4) after rinsed with deionized water, immerse the tubular matrix after the activation processing in the galvanic deposition cell, adopt the method for electro-deposition to make tubular matrix coat the tungsten based amorphous attitude alloy of one deck, the component of electrodeposit liquid: sodium tungstate 18g/L, nickelous sulfate 140g/L, inferior sodium phosphate 150g/L, citric acid 90g/L; Current density: 10mA/cm
3PH value: 7.5; Temperature: 80 ℃; Electrodeposition time is 2h.
(5) tubular matrix after the electrodeposition process being incubated 2 hours down at 150 ℃ heat-treats.
The tubing and casing that obtains comprises tubular matrix 1 as shown in Figure 1, and the two ends of tubular matrix 1 are processed with male thread portion 3 as linkage section, is covered with tungsten based amorphous attitude alloy-layer 2 on the inside and outside surface of tubular matrix 1, and the thickness of tungsten based amorphous attitude alloy-layer 2 is 20 μ m.The mass percent of composition that tungsten based amorphous attitude alloy-layer 2 comprises is: tungsten 10%, and nickel 65%, iron 10%, cobalt 6%, all the other are phosphorus and impurity, tungsten based amorphous attitude alloy-layer 2 is that long-range is unordered, the structure of shortrange order.
According to the anti-CO of the following step production the present invention
2The corrosion oil annular pipe:
(1) adopts API common oil casing steel N80 to process the tubing and casing tubular matrix, process male thread portion at its two ends.
(2) tubular matrix is carried out electrolytic degreasing and handle, in 70 ℃ degreasing fluid, feed 10A/cm
3Electric current, and the insulation 7min, the composition of degreasing fluid is: the NaOH of 1.0mol/L, the Na of 0.3mol/L
2CO
3, 0.08mol/L Na
2SiO
3Use washed with de-ionized water to remove degreasing fluid to the tubular matrix after the oil removal treatment, adopt the compressed air blasting method that tubular matrix is carried out processing of rust removing then, sand particle diameter 40 orders.
(3) adopt the sodium nitrate activating process that the tubular matrix through above-mentioned processing is carried out activation processing, make the tubular matrix surface expose fresh metal level, thereby improve deposition layer and basal body binding force.
(4) after rinsed with deionized water, immerse the tubular matrix after the activation processing in the galvanic deposition cell, adopt the method for electro-deposition to make tubular matrix coat the tungsten based amorphous attitude alloy of one deck, the component of electrodeposit liquid: sodium tungstate 155g/L, nickelous sulfate 30g/L, inferior sodium phosphate 35g/L, citric acid 60g/L; Current density: 150mA/cm
3PH value: 9; Temperature: 60 ℃; Electrodeposition time is 3h.
(5) tubular matrix after the electrodeposition process being incubated 0.5 hour down at 700 ℃ heat-treats.
The tubing and casing that obtains comprises tubular matrix, and the two ends of tubular matrix are processed with male thread portion as linkage section, is covered with tungsten based amorphous attitude alloy-layer on the inside and outside surface of tubular matrix, and the thickness of tungsten based amorphous attitude alloy-layer is 60 μ m.The mass percent of tungsten based amorphous attitude composition that alloy-layer comprises is: tungsten 55%, and nickel 15%, iron 15%, cobalt 10%, all the other are phosphorus and impurity, tungsten based amorphous attitude alloy-layer is that long-range is unordered, the structure of shortrange order.
According to the anti-CO of the following step production the present invention
2The corrosion oil annular pipe:
(1) adopts API common oil casing steel P110 to process the tubing and casing tubular matrix, process male thread portion at its two ends.
(2) tubular matrix is carried out electrolytic degreasing and handle, in 80 ℃ degreasing fluid, feed 5A/cm
3Electric current, and the insulation 5min, the composition of degreasing fluid is: the NaOH of 1.2mol/L, the Na of 0.5mol/L
2CO
3, 0.18mol/L Na
2SiO
3Use washed with de-ionized water to remove degreasing fluid to the tubular matrix after the oil removal treatment, adopt the compressed air blasting method that tubular matrix is carried out processing of rust removing then, sand particle diameter 30 orders.
(3) adopt the sodium nitrate activating process that the tubular matrix through above-mentioned processing is carried out activation processing, make the tubular matrix surface expose fresh metal level, thereby improve deposition layer and basal body binding force.
(4) after rinsed with deionized water, immerse the tubular matrix after the activation processing in the galvanic deposition cell, adopt the method for electro-deposition to make tubular matrix coat the tungsten based amorphous attitude alloy of one deck, the component of electrodeposit liquid: sodium tungstate 100g/L, nickelous sulfate 90g/L, inferior sodium phosphate 150g/L, citric acid 70g/L; Current density: 220mA/cm
3PH value: 8; Temperature: 40 ℃; Electrodeposition time is 4h.
(5) tubular matrix after the electrodeposition process being incubated 1 hour down at 500 ℃ heat-treats.
The tubing and casing that obtains comprises tubular matrix, and the two ends of tubular matrix are processed with male thread portion as linkage section, is covered with tungsten based amorphous attitude alloy-layer on the inside and outside surface of tubular matrix, and the thickness of tungsten based amorphous attitude alloy-layer is 80 μ m.The mass percent of tungsten based amorphous attitude composition that alloy-layer comprises is: tungsten 30%, and nickel 45%, iron 10%, cobalt 12%, all the other are phosphorus and impurity, tungsten based amorphous attitude alloy-layer is that long-range is unordered, the structure of shortrange order.
Under laboratory environment, salinity: 41670mg/L, temperature: 60 ℃, flow velocity 1m/s, test period 3d has carried out 10%CO to the tubing and casing in the foregoing description with without the tubing and casing sample of tungsten electrodeposition alloy treatment respectively
2With saturated CO
2Anticorrosive contrast test, the result is as follows:
| Sample | 10％CO 2Corrosion rate (mm/a) | Saturated CO 2Corrosion rate (mm/a) |
| Be untreated | 0.2550 | 1.7124 |
| |
0.0869 | 0.1045 |
| |
0.0607 | 0.1187 |
| |
0.0716 | 0.1209 |
Can find the anti-CO of the tubing and casing of producing by this patent method from above experimental result
2Corrosive nature is greatly improved.
Respectively treated tubing and casing in the middle of the foregoing description is carried out mechanical property and detect, the result is as follows:
Can find to meet the requirement of API fully from above testing result by the not reduction of mechanical property of the tubing and casing of this patent method production.
Above-described embodiment is described preferred implementation of the present invention; be not that scope of the present invention is limited; design under the prerequisite of spirit not breaking away from the present invention; various distortion and improvement that those of ordinary skills make technical scheme of the present invention all should fall in the definite protection domain of claims of the present invention.
Claims (10)
1. anti-CO
2The corrosion oil annular pipe comprises tubular matrix (1), and the two ends of described tubular matrix (1) are provided with linkage section, it is characterized in that: be covered with tungsten based amorphous attitude alloy-layer (2) on the inside and outside surface of described tubular matrix (1).
2. anti-CO according to claim 1
2The corrosion oil annular pipe is characterized in that: described linkage section is male thread portion (3).
3. anti-CO according to claim 2
2The corrosion oil annular pipe is characterized in that: the thickness of described tungsten based amorphous attitude alloy-layer (2) is 20～80 μ m.
4. anti-CO according to claim 3
2The corrosion oil annular pipe is characterized in that: the mass percent that described tungsten based amorphous attitude alloy-layer (2) comprises composition is: tungsten 10%～55%, and nickel 15%～65%, iron 10%～15%, cobalt 6%～12%, all the other are phosphorus and impurity.
5. anti-CO according to claim 4
2The corrosion oil annular pipe is characterized in that: described tungsten based amorphous attitude alloy-layer (2) is unordered for long-range, the structure of shortrange order.
6. anti-CO
2The production method of corrosion oil annular pipe, carry out according to following steps:
(1) processes the tubing and casing tubular matrix, process male thread portion at its two ends;
(2) tubular matrix is carried out oil removing, processing of rust removing;
(3) adopt the sodium nitrate activating process that the tubular matrix through above-mentioned processing is carried out activation processing;
(4) tubular matrix after the activation processing is immersed after rinsed with deionized water in the galvanic deposition cell, adopt the method for electro-deposition to make tubular matrix coat the tungsten based amorphous attitude alloy of one deck.
7. anti-CO according to claim 6
2The production method of corrosion oil annular pipe is characterized in that: the component of electrodeposit liquid in the described step (4): sodium tungstate 18～155g/L, nickelous sulfate 30～140g/L, inferior sodium phosphate 35～210g/L, citric acid 60～90g/L; Current density: 10～220mA/cm
3PH value: 7.5～9; Temperature: 40～80 ℃; Electrodeposition time is 2～4h.
8. anti-CO according to claim 7
2The production method of corrosion oil annular pipe is characterized in that: adopt electrolytic degreasing to handle to tubular matrix in the described step (2), feed 5～10A/cm in 50～80 ℃ degreasing fluid
3Electric current, and be incubated 5～8min; The composition of degreasing fluid is: the NaOH of 0.7～1.2mol/L, the Na of 0.3～0.5mol/L
2CO
3, 0.08～0.25mol/L Na
2SiO
3
9. anti-CO according to claim 8
2The production method of corrosion oil annular pipe, it is characterized in that: use washed with de-ionized water to remove degreasing fluid to the tubular matrix after the oil removal treatment in the described step (2), adopt the compressed air blasting method that tubular matrix is carried out processing of rust removing then, sand particle diameter 20～40 orders.
10. the anti-CO one of described according to claim 6 to 9
2The production method of corrosion oil annular pipe is characterized in that: comprise that also step (5) is incubated 0.5～2 hour with the tubular matrix after the electrodeposition process down at 150 ℃～700 ℃ and heat-treats.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102846651A CN102003148A (en) | 2010-09-17 | 2010-09-17 | Oil casing pipe resisting CO2 corrosion and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102846651A CN102003148A (en) | 2010-09-17 | 2010-09-17 | Oil casing pipe resisting CO2 corrosion and production method thereof |
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| CN102003148A true CN102003148A (en) | 2011-04-06 |
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|---|---|---|---|
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103194773A (en) * | 2013-04-21 | 2013-07-10 | 胜利油田胜鑫防腐有限责任公司 | Anti-corrosion drill rod for well drilling of oilfield and anti-corrosion treatment process thereof |
| CN103982143A (en) * | 2014-05-14 | 2014-08-13 | 胜利油田金岛实业有限责任公司 | Petroleum pipe-pile vertical-type static-electroplating anti-mixing liquid-replacing device |
| CN104632090A (en) * | 2013-11-08 | 2015-05-20 | 中国石油天然气股份有限公司 | A structure and method for preventing corrosion damage of downhole aluminum alloy-carbon steel pipe column |
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| CN107400910A (en) * | 2017-06-01 | 2017-11-28 | 中国南方电网有限责任公司超高压输电公司贵阳局 | An electroplating process that can improve the surface finish of the voltage equalizing electrode probe of a high-voltage direct current converter valve |
| CN107779934A (en) * | 2017-10-25 | 2018-03-09 | 昆山钴瓷金属科技有限公司 | A kind of preparation method of oil pipeline nano-composite coating |
| CN111455418A (en) * | 2020-05-11 | 2020-07-28 | 克拉玛依双信防腐技术有限公司 | Pipe wall coating method |
| CN112439678A (en) * | 2019-09-03 | 2021-03-05 | 中国石油天然气集团有限公司 | Anticorrosion coating process in oil casing |
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| CN104632090A (en) * | 2013-11-08 | 2015-05-20 | 中国石油天然气股份有限公司 | A structure and method for preventing corrosion damage of downhole aluminum alloy-carbon steel pipe column |
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| CN103982143A (en) * | 2014-05-14 | 2014-08-13 | 胜利油田金岛实业有限责任公司 | Petroleum pipe-pile vertical-type static-electroplating anti-mixing liquid-replacing device |
| CN103982143B (en) * | 2014-05-14 | 2016-01-20 | 胜利油田金岛实业有限责任公司 | The anti-mixed liquid changing device of a kind of petroleum pipe column vertical static plating |
| CN106498462A (en) * | 2016-12-14 | 2017-03-15 | 珠海市椿田机械科技有限公司 | A kind of electroplating technology |
| CN107400910A (en) * | 2017-06-01 | 2017-11-28 | 中国南方电网有限责任公司超高压输电公司贵阳局 | An electroplating process that can improve the surface finish of the voltage equalizing electrode probe of a high-voltage direct current converter valve |
| CN107779934A (en) * | 2017-10-25 | 2018-03-09 | 昆山钴瓷金属科技有限公司 | A kind of preparation method of oil pipeline nano-composite coating |
| CN112439678A (en) * | 2019-09-03 | 2021-03-05 | 中国石油天然气集团有限公司 | Anticorrosion coating process in oil casing |
| CN112439678B (en) * | 2019-09-03 | 2022-11-01 | 中国石油天然气集团有限公司 | Anticorrosion coating process in oil casing |
| CN111455418A (en) * | 2020-05-11 | 2020-07-28 | 克拉玛依双信防腐技术有限公司 | Pipe wall coating method |
| CN111455418B (en) * | 2020-05-11 | 2021-11-19 | 新疆德丰亿升石油防腐工程有限公司 | Pipe wall coating method |
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Application publication date: 20110406 |