CN103882437A - Corrosion inhibitor for oil-gas gathering and transportation pipeline and preparation method thereof - Google Patents
Corrosion inhibitor for oil-gas gathering and transportation pipeline and preparation method thereof Download PDFInfo
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- CN103882437A CN103882437A CN201410128046.1A CN201410128046A CN103882437A CN 103882437 A CN103882437 A CN 103882437A CN 201410128046 A CN201410128046 A CN 201410128046A CN 103882437 A CN103882437 A CN 103882437A
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Abstract
The invention discloses a corrosion inhibitor for an oil-gas gathering and transportation pipeline and a preparation method thereof. The corrosion inhibitor comprises the following components in parts by weight: 1-3 parts of polyacrylic acid, 2-10 parts of surface active agent, 5-8 parts of gluconic acid sodium salt, 1-5 parts of aromatic azole, 5-20 parts of carbonate, 20-40 parts of organic amine, 10-30 parts of carrier, 10-30 parts of barium mahogany sulfonate, 1-3 parts of liquid wax and 10-20 parts of distilled water. The corrosion inhibitor is used for inhibiting acidic erosion existing in liquid or natural gas oil field pipelines, especially the erosion caused by sulfureted hydrogen; an alkalescent liquid is formed by adding carbonate and a carrier to guarantee the absorption to acids; the addition of gluconic acid sodium salt in the components realizes the absorption of metal ions such as iron ions, aluminum ions, calcium ions and the like in the exploitation of petroleum pipelines by forming complexes of the ions, thereby avoiding electrochemical corrosion; moreover, no special equipment is needed during operation according to the preparation method, the materials are easily obtained, and the corrosion inhibitor has a good application prospect.
Description
Technical field
The present invention relates to a kind of inhibiter, relate in particular to a kind of oil-gas gathering and transferring pipeline inhibiter and preparation method thereof.
Background technology
The service condition of oil field equipment is mainly carrying and environment, under harsh envrionment conditions, makes corrosion become one of its main collapse mode.Corrosion is one of difficult problem of puzzlement industrial gas oil development.The work-ing life of oil field equipment and gathering line has been shortened in corrosion greatly, and according to "ball-park" estimate, the loss that corrosion causes to China Petroleum accounts for 6% of the industry gross output value, and takes suitable anti-corrosion measure at least can retrieve 30% ~ 40% loss.Although developed some special corrosion resistant materials, but can not realize comprehensive protection against corrosion for complicated oil field environment, for example some material can prevent H 2 S stress corrosion cracking, but can not prevent the general corrosion of hydrogen sulfide and carbonic acid gas, and employing anticorrosive, cost is higher.Therefore, be necessary to study other more effectively anticorrosive measures, the many anticorrosive measures of research are at the inner inhibiter that adds of transport pipe at present, inhibiter refers to while being present in surrounding medium with suitable concentration and form, can prevent or slow down chemical substance or the mixture of material corrosion, therefore inhibiter also can be called corrosion inhibitor.Its consumption is very little, but effect is remarkable.
Oil field corrosion has following feature: gas, water, hydrocarbon, the Multiphase Flow medium that coexists admittedly, existing general corrosion has again local corrosion, also comprise the acid liquid corrosion of carbon dioxide and formation, hydrogen sulfide corrosion, stress corrosion crack and microbiological corrosion etc., also do not have effective inhibiter for the corrosion of hydrogen sulfide and acid solution formation thereof at present.
Because the defect that above-mentioned existing inhibiter exists, practical experience and the expertise of the inventor based on being engaged in this type of product design manufacture and enriching for many years, and the utilization of cooperation scientific principle, actively research and innovation in addition, to founding a kind of Novel oil gas gathering line inhibiter and preparation method thereof, make it have more practicality.Through constantly research, design, and after repeatedly studying sample and improving, finally create the present invention who has practical value.
Summary of the invention
Main purpose of the present invention is, overcome the defect that existing inhibiter exists, and a kind of Novel oil gas gathering line inhibiter and preparation method thereof is provided, realize the protection against corrosion to oil transportation and gas transmission simultaneously, thereby be more suitable for practicality, and there is the utility value in industry.
The object of the invention to solve the technical problems realizes by the following technical solutions.The gas gathering line inhibiter proposing according to the present invention, comprise 1 ~ 3 part of polyacrylic acid of following component, 2 ~ 10 parts of tensio-active agents, 5 ~ 8 parts of Sunmorl N 60Ss, 1 ~ 5 part of aromatic series azole, 5 ~ 20 parts of carbonate, 20 ~ 40 parts of organic amines, 10 ~ 30 parts of carriers, 10 ~ 30 parts of barium mahogany sulfonates, 1 ~ 3 part of liquid wax and 10 ~ 20 parts of distilled water.
Concrete, aforesaid oil-gas gathering and transferring pipeline inhibiter, described aromatic series azole is for dredging base benzotriazole or benzotriazole; Described carbonate is salt of wormwood or sodium carbonate; Described organic amine is methyldiethanolamine, diisopropanolamine (DIPA), monoethanolamine, cetylamine, stearylamine, morpholine, diethanolamine or trolamine.
Concrete, aforesaid oil-gas gathering and transferring pipeline inhibiter, described carrier is the doped meso-porous carbon of nitrogen.
Concrete, the preparation method of aforesaid oil-gas gathering and transferring pipeline inhibiter, the method comprises the steps:
1) solution of described carbonate is mixed at ambient temperature, stirred with described carrier;
2) in the mixing solutions of step 1), add polyacrylic acid, tensio-active agent, Sunmorl N 60S, aromatic series azole and organic amine are realized prepolymerization under 80 ℃ ~ 110 ℃ temperature condition;
3) in step 2) add barium mahogany sulfonate and liquid wax in the prepolymer prepared, be abundant mixing and stirring under 200 ~ 400r/min condition at rotating speed, leave standstill at ambient temperature 10h ~ 15h, after bubble collapse, obtain target product.
Concrete, the preparation method of aforesaid oil-gas gathering and transferring pipeline inhibiter, in described step 1), described stirring velocity is 100 ~ 200r/min.
Concrete, the preparation method of aforesaid oil-gas gathering and transferring pipeline inhibiter, the carrier in described step 1) is the doped meso-porous carbon of nitrogen.
Concrete, the preparation method of the oil-gas gathering and transferring pipeline inhibiter that you state in fact, described aromatic series azole is for dredging base benzotriazole or benzotriazole.
Concrete, the preparation method of aforesaid oil-gas gathering and transferring pipeline inhibiter, described carbonate is salt of wormwood or sodium carbonate.
Concrete, the preparation method of aforesaid oil-gas gathering and transferring pipeline inhibiter, described organic amine is methyldiethanolamine, diisopropanolamine (DIPA), monoethanolamine, cetylamine, stearylamine, morpholine, diethanolamine or trolamine.
Concrete, the preparation method of aforesaid oil-gas gathering and transferring pipeline inhibiter, the churning time of described step 3) is at least 4 hours.
By technique scheme, oil-gas gathering and transferring pipeline inhibiter of the present invention and preparation method thereof at least has following advantages:
Oil-gas gathering and transferring pipeline inhibiter of the present invention, the corrosion causing mainly for the acid attack, the especially hydrogen sulfide that exist in liquid state or Sweet natural gas oil field pipe; By adding carbonate and carrier, form entirety and be alkaline solution, better guarantee acid absorption; And in composition, add the better absorption of realization to metal ions such as the iron existing in petroleum pipe line exploitation, aluminium, calcium of Sunmorl N 60S, form the complex compound of above-mentioned ion, avoid occurring galvanic corrosion; Further add aromatic series azole, better absorbing copper ions, there is multiple release mechanism in oil-gas gathering and transferring pipeline inhibiter of the present invention therefore, better realizes etch-proof effect; And the overall preparation method of inhibiter operation do not need special equipment, material obtains easily, cheap, is applicable to large-scale promotion development, has a good application prospect.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technique means of the present invention, and can be implemented according to the content of specification sheets, below is described in detail as follows with preferred embodiment of the present invention.
Embodiment
Technique means and effect of taking for reaching predetermined goal of the invention for further setting forth the present invention, to the oil-gas gathering and transferring pipeline inhibiter proposing according to the present invention and preparation method thereof its embodiment, feature and effect thereof, be described in detail as follows.
embodiment 1
Gas gathering line inhibiter of the present invention, comprises 2 parts of polyacrylic acid, 4 parts of tensio-active agents, 6 parts of Sunmorl N 60Ss, 4 parts of thin base benzotriazoles, 14 parts of salt of wormwood, 27 parts of diisopropanolamine (DIPA), 13 parts of doped meso-porous carbon of carrier nitrogen, 16 parts of barium mahogany sulfonates, 2 parts of liquid waxs and 12 parts of distilled water.
The solution that takes in proportion 14 parts of salt of wormwood mixes at ambient temperature, stirs with 13 parts of doped meso-porous carbon of nitrogen, and stirring velocity is 100 ~ 200r/min; In the mixing solutions of step 1), add 2 parts of polyacrylic acid, 4 parts of tensio-active agents, 6 parts of Sunmorl N 60Ss, 4 parts of thin base benzotriazoles and 27 parts of diisopropanolamine (DIPA) realize prepolymerization under 80 ℃ ~ 110 ℃ temperature condition; In step 2) add 16 parts of barium mahogany sulfonates and 2 parts of liquid waxs in the prepolymer prepared, be abundant mixing and stirring under 200 ~ 400r/min condition at rotating speed, at least stir 4 hours, leave standstill at ambient temperature 10h ~ 15h, after bubble collapse, obtain target product.Inhibiter prepared by the present embodiment verifies, inhibition efficiency reaches 78% left and right.
embodiment 2
?gas gathering line inhibiter of the present invention, comprises 1 part of polyacrylic acid, 5 parts of tensio-active agents, 5 parts of Sunmorl N 60Ss, 5 parts of benzotriazoles, 12 parts of salt of wormwood, 25 parts of ethylene glycol amine, 13 parts of doped meso-porous carbon of carrier nitrogen, 20 parts of barium mahogany sulfonates, 2 parts of liquid waxs and 12 parts of distilled water.
The solution that takes in proportion 12 parts of salt of wormwood mixes at ambient temperature, stirs with 13 parts of doped meso-porous carbon of nitrogen, and stirring velocity is 100 ~ 200r/min; In the mixing solutions of step 1), add 1 part of polyacrylic acid, 5 parts of tensio-active agents, 5 parts of Sunmorl N 60Ss, 5 parts of benzotriazoles and 25 parts of ethylene glycol amine are realized prepolymerization under 80 ℃ ~ 110 ℃ temperature condition; In step 2) add 20 parts of barium mahogany sulfonates and 2 parts of liquid waxs in the prepolymer prepared, be abundant mixing and stirring under 200 ~ 400r/min condition at rotating speed, at least stir 4 hours, leave standstill at ambient temperature 10h ~ 15h, after bubble collapse, obtain target product.Inhibiter prepared by the present embodiment verifies, inhibition efficiency reaches 81% left and right.
embodiment 3
Gas gathering line inhibiter of the present invention, comprises 3 parts of polyacrylic acid, 3 parts of tensio-active agents, 5 parts of Sunmorl N 60Ss, 4 parts of benzotriazoles, 10 parts of sodium carbonate, 24 parts of monoethanolamines, 13 parts of doped meso-porous carbon of carrier nitrogen, 20 parts of barium mahogany sulfonates, 3 parts of liquid waxs and 15 parts of distilled water.
The solution that takes in proportion 10 parts of sodium carbonate mixes at ambient temperature, stirs with 13 parts of doped meso-porous carbon of nitrogen, and stirring velocity is 100 ~ 200r/min; In the mixing solutions of step 1), add 3 parts of polyacrylic acid, 3 parts of tensio-active agents, 5 parts of Sunmorl N 60Ss, 4 parts of benzotriazoles and 24 parts of monoethanolamines are realized prepolymerization under 80 ℃ ~ 110 ℃ temperature condition; In step 2) add 20 parts of barium mahogany sulfonates and 3 parts of liquid waxs in the prepolymer prepared, be abundant mixing and stirring under 200 ~ 400r/min condition at rotating speed, at least stir 5 hours, leave standstill at ambient temperature 10h ~ 15h, after bubble collapse, obtain target product.Inhibiter prepared by the present embodiment verifies, inhibition efficiency reaches 83% left and right.
The above, it is only preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, although the present invention discloses as above with preferred embodiment, but not in order to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, when can utilizing the technology contents of above-mentioned announcement to make a little change or being modified to the equivalent embodiment of equivalent variations, in every case be the content that does not depart from technical solution of the present invention, any simple modification of above embodiment being done according to technical spirit of the present invention, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (10)
1. an oil-gas gathering and transferring pipeline inhibiter, it is characterized in that, comprise 1 ~ 3 part of polyacrylic acid of following component, 2 ~ 10 parts of tensio-active agents, 5 ~ 8 parts of Sunmorl N 60Ss, 1 ~ 5 part of aromatic series azole, 5 ~ 20 parts of carbonate, 20 ~ 40 parts of organic amines, 10 ~ 30 parts of carriers, 10 ~ 30 parts of barium mahogany sulfonates, 1 ~ 3 part of liquid wax and 10 ~ 20 parts of distilled water.
2. oil-gas gathering and transferring pipeline inhibiter according to claim 1, is characterized in that, described aromatic series azole is for dredging base benzotriazole or benzotriazole; Described carbonate is salt of wormwood or sodium carbonate; Described organic amine is methyldiethanolamine, diisopropanolamine (DIPA), monoethanolamine, cetylamine, stearylamine, morpholine, diethanolamine or trolamine.
3. oil-gas gathering and transferring pipeline inhibiter according to claim 1, is characterized in that, described carrier is the doped meso-porous carbon of nitrogen.
4. the preparation method of the oil-gas gathering and transferring pipeline inhibiter described in claim 1 ~ 3 any one, is characterized in that, the method comprises the steps:
1) solution of described carbonate is mixed at ambient temperature, stirred with described carrier;
2) in the mixing solutions of step 1), add polyacrylic acid, tensio-active agent, Sunmorl N 60S, aromatic series azole and organic amine are realized prepolymerization under 80 ℃ ~ 110 ℃ temperature condition;
3) in step 2) add barium mahogany sulfonate and liquid wax in the prepolymer prepared, be abundant mixing and stirring under 200 ~ 400r/min condition at rotating speed, leave standstill at ambient temperature 10h ~ 15h, after bubble collapse, obtain target product.
5. the preparation method of oil-gas gathering and transferring pipeline inhibiter according to claim 4, is characterized in that, in described step 1), described stirring velocity is 100 ~ 200r/min.
6. the preparation method of oil-gas gathering and transferring pipeline inhibiter according to claim 4, is characterized in that, the carrier in described step 1) is the doped meso-porous carbon of nitrogen.
7. the preparation method of oil-gas gathering and transferring pipeline inhibiter according to claim 4, is characterized in that, described aromatic series azole is for dredging base benzotriazole or benzotriazole.
8. the preparation method of oil-gas gathering and transferring pipeline inhibiter according to claim 4, is characterized in that, described carbonate is salt of wormwood or sodium carbonate.
9. the preparation method of oil-gas gathering and transferring pipeline inhibiter according to claim 4, is characterized in that, described organic amine is methyldiethanolamine, diisopropanolamine (DIPA), monoethanolamine, cetylamine, stearylamine, morpholine, diethanolamine or trolamine.
10. the preparation method of oil-gas gathering and transferring pipeline inhibiter according to claim 4, is characterized in that, the churning time of described step 3) is at least 4 hours.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104451699A (en) * | 2014-11-20 | 2015-03-25 | 中国石油天然气集团公司 | High-temperature corrosion inhibitor for H2S-HCl-H2O system and preparation method of high-temperature corrosion inhibitor |
| CN105154884A (en) * | 2015-09-06 | 2015-12-16 | 陕西驭腾实业有限公司 | Corrosion inhibitor for ultralow-temperature smoke of gas-fired boiler and preparation method thereof and use method thereof |
| CN106555137A (en) * | 2016-11-30 | 2017-04-05 | 西安石油大学 | A kind of manufacture method of corrosion resisting alloy hot finished steel pipe |
| CN108504343A (en) * | 2018-05-09 | 2018-09-07 | 西安瑞杰油田物资实业开发有限公司 | A kind of sulfur resistive corrosion inhibiter and preparation method thereof |
| CN109267068A (en) * | 2018-11-22 | 2019-01-25 | 中石化炼化工程（集团）股份有限公司 | A kind of stress corrosion cracking inhibitor, preparation method and application |
| CN109368900A (en) * | 2018-11-22 | 2019-02-22 | 中国石油工程建设有限公司 | A kind of sulfur Gas Fields water treatment technology |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102660244A (en) * | 2012-05-17 | 2012-09-12 | 中国石油集团工程设计有限责任公司 | Composite-type oil-gas field corrosion inhibitor |
| CN102978624A (en) * | 2012-12-06 | 2013-03-20 | 中国石油集团工程设计有限责任公司 | Oil-gas field gas transmission pipeline corrosion inhibitor and preparation method thereof |
-
2014
- 2014-04-01 CN CN201410128046.1A patent/CN103882437B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102660244A (en) * | 2012-05-17 | 2012-09-12 | 中国石油集团工程设计有限责任公司 | Composite-type oil-gas field corrosion inhibitor |
| WO2013170492A1 (en) * | 2012-05-17 | 2013-11-21 | 中国石油集团工程设计有限责任公司 | Corrosion inhibitor for composite oil-gas field |
| CN102978624A (en) * | 2012-12-06 | 2013-03-20 | 中国石油集团工程设计有限责任公司 | Oil-gas field gas transmission pipeline corrosion inhibitor and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| E.F.DIAZ ETAL.: "A study of the Carboxyethylimidazoline as an H2S Corrosion Inhibitor of X-120 Pipeline Steel", 《INT.J.ELECTROCHEM.SCI.》, 1 December 2013 (2013-12-01), pages 1821 - 1836 * |
| 鲍群等: "输油管道缓蚀剂现状与发展趋势", 《化工文摘》, no. 3, 31 December 2007 (2007-12-31), pages 54 - 57 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104451699A (en) * | 2014-11-20 | 2015-03-25 | 中国石油天然气集团公司 | High-temperature corrosion inhibitor for H2S-HCl-H2O system and preparation method of high-temperature corrosion inhibitor |
| CN105154884A (en) * | 2015-09-06 | 2015-12-16 | 陕西驭腾实业有限公司 | Corrosion inhibitor for ultralow-temperature smoke of gas-fired boiler and preparation method thereof and use method thereof |
| CN105154884B (en) * | 2015-09-06 | 2018-05-11 | 陕西驭腾实业有限公司 | A kind of gas fired-boiler ultralow temperature flue gas corrosion inhibiter and preparation method thereof and application method |
| CN106555137A (en) * | 2016-11-30 | 2017-04-05 | 西安石油大学 | A kind of manufacture method of corrosion resisting alloy hot finished steel pipe |
| CN106555137B (en) * | 2016-11-30 | 2017-12-29 | 西安石油大学 | A kind of manufacture method of corrosion resisting alloy hot finished steel pipe |
| CN108504343A (en) * | 2018-05-09 | 2018-09-07 | 西安瑞杰油田物资实业开发有限公司 | A kind of sulfur resistive corrosion inhibiter and preparation method thereof |
| CN109267068A (en) * | 2018-11-22 | 2019-01-25 | 中石化炼化工程（集团）股份有限公司 | A kind of stress corrosion cracking inhibitor, preparation method and application |
| CN109368900A (en) * | 2018-11-22 | 2019-02-22 | 中国石油工程建设有限公司 | A kind of sulfur Gas Fields water treatment technology |
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| CN103882437B (en) | 2015-12-30 |
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