CN103910438A - Antiscale corrosion inhibitor for oilfield produced water and piped crude oil - Google Patents
Antiscale corrosion inhibitor for oilfield produced water and piped crude oil Download PDFInfo
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- CN103910438A CN103910438A CN201410164246.2A CN201410164246A CN103910438A CN 103910438 A CN103910438 A CN 103910438A CN 201410164246 A CN201410164246 A CN 201410164246A CN 103910438 A CN103910438 A CN 103910438A
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- corrosion inhibitor
- antiscale
- water
- sodium
- piped
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Abstract
The invention relates to an antiscale corrosion inhibitor for oilfield produced water and piped crude oil. The antiscale corrosion inhibitor is prepared by the following components in percentage by weight: 10-15% of tetrakis(hydroxymethyl)phosphonium sulfate, 5-10% of ethylene diamine tetraacetic acid disodium salt, 10-15% of sodium gluconate, 15-25% of ethylene diamine tetra (methylene phosphonic acid) sodium, 1-5% of sodium molybdate, 10-15% of sodium polyepoxysuccinate, and the balance of water. The antiscale corrosion inhibitor is good in antiscale effect, good in corrosion inhibition property and has diversity.
Description
Technical field
The present invention relates to a kind of oil field extracted water and pipeline oil anti-incrustation corrosion inhibitor, be specially adapted to containing Ba
2+(Sr
2+), SO
4 2-and H
2s, CO
2halite water environment under, there is good scale inhibition ability and corrosion inhibition, particularly barium and strontium sulfate is had to good scale-inhibiting properties.
Background technology
Due to lack of water arid area, China's most of oil field place, water resources lacks, and oil-bearing wastewater amount is still not enough to meet the demand of its waterflooding in addition, so the injecting process often need to supplement a certain amount of underground clear water.The SO of clear water
4 2-content is high, and in the time mixing with local water, the scaling cations in meeting and local water occurs compared with strong ionic reaction and fouling.If ionic reaction occurs in ground re-injection facility, the dirt of generation can cause the obstruction of pipeline and equipment, has a strong impact on normal production.If ionic reaction occurs in pipe laying, the dirt of generation can be attached to pipeline walls, oil transportation amount is declined and line pressure rising.If ionic reaction occurs in underground, the dirt of generation can stop up reservoir pore, reduces the rate of permeation on stratum, causes crude production rate to fall sharply.Particularly in water, contain Ba
2+(Sr
2+) when ion, Ba (Sr) SO of generation
4hard and the very difficult removal of dirt quality, will cause irremediable loss to surface pipeline and stratum.So, a kind of efficient anti-Ba (Sr) SO of development
4the Scale inhibitors of dirt becomes oil field urgent problem.
Object of the present invention is exactly for the deficiencies in the prior art, and a kind of oil field extracted water and pipeline oil anti-incrustation corrosion inhibitor are provided.
The object of the invention is to be achieved through the following technical solutions: a kind of oil field extracted water and pipeline oil anti-incrustation corrosion inhibitor, it is formulated by following compositions in weight percentage:
A kind of oil field extracted water and pipeline oil are formulated according to weight percent by following component with anti-incrustation corrosion inhibitor:
In above-mentioned each component, disodium ethylene diamine tetraacetate, Sunmorl N 60S, ethylene diamine tetra methylene phosphonic acid sodium, polyepoxy sodium succinate mainly play scale effect.Sodium orthomolybdate, polyepoxy sodium succinate, tetrakis hydroxymetyl phosphonium sulfuric are mainly corrosion inhibitions.
The present invention compared with prior art has following technical superiority:
(1) scale inhibition effect is good.This product not only has good scale inhibition effect but also common calcium magne-scale is had to good scale inhibition effect equally barium strontium dirt.
(2) corrosion inhibition is good.This product is not only to H
2s, CO
2the corrosion causing has corrosion inhibiting ability, and the underdeposit corrosion that Halite water is caused has good corrosion inhibition equally.
(3) diversity.This product not only has scale inhibition (especially to barium strontium dirt) effect also to have corrosion inhibition concurrently simultaneously.Solve commercial like product or only had barium strontium dirt scale inhibition ability, or only for H
2s, CO
2the corrosion causing, or only for the corrosion causing under dirt.
Embodiment
Embodiment 1:
Get 3g Sodium orthomolybdate, 5g disodium ethylene diamine tetraacetate is dissolved in water, make solution, add again 12g Sunmorl N 60S, fully, after stirring and dissolving, add 20g ethylene diamine tetra methylene phosphonic acid sodium to dissolve, and then add 15g polyepoxy sodium succinate, 10g tetrakis hydroxymetyl phosphonium sulfuric, finally add remaining water, make total liquid measure reach 100g, be finished product.
Embodiment 2:
Get 5g Sodium orthomolybdate, 5g disodium ethylene diamine tetraacetate is dissolved in water, make solution, add again 25g ethylene diamine tetra methylene phosphonic acid sodium to dissolve, fully, after stirring and dissolving, add 15g Sunmorl N 60S, and then add 15g polyepoxy sodium succinate, 15g tetrakis hydroxymetyl phosphonium sulfuric, finally add remaining water, make total liquid measure reach 100g, be finished product.
The finished product of making according to such scheme, effective concentration can reach 65-80%, and scale inhibitor effect is than like product excellent.
Anti-incrustation corrosion inhibitor effect assessment of the present invention: (pressing Q/SY126-2007 standard detection)
| Interventions Requested | Index | Actual measurement |
| Scale inhibition performance (CaCO 3),％ | ≥90 | 93 |
| Scale inhibition performance (CaSO 4),％ | ≥90 | 95 |
| Scale inhibition performance (BaSO 4),％ | ≥40 | 80 |
| Erosion rate, mm/a | ≤0.076 | 0.032 |
Claims (2)
1. oil field extracted water and a pipeline oil anti-incrustation corrosion inhibitor, is characterized in that: it is formulated according to weight percent by following component:
2. a kind of oil field extracted water as claimed in claim 1 and pipeline oil anti-incrustation corrosion inhibitor, is characterized in that: formulated according to weight percent by following component:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410164246.2A CN103910438B (en) | 2014-04-22 | 2014-04-22 | Antiscale corrosion inhibitor for oilfield produced water and piped crude oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410164246.2A CN103910438B (en) | 2014-04-22 | 2014-04-22 | Antiscale corrosion inhibitor for oilfield produced water and piped crude oil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103910438A true CN103910438A (en) | 2014-07-09 |
| CN103910438B CN103910438B (en) | 2015-03-04 |
Family
ID=51036494
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410164246.2A Expired - Fee Related CN103910438B (en) | 2014-04-22 | 2014-04-22 | Antiscale corrosion inhibitor for oilfield produced water and piped crude oil |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104963666A (en) * | 2015-06-17 | 2015-10-07 | 成都高普石油工程技术有限公司 | Oil extraction method for improving crude oil recovery efficiency |
| CN105039995A (en) * | 2015-07-09 | 2015-11-11 | 潍坊友容实业有限公司 | Scale and corrosion inhibitor special for saline-alkali soil salt drainage concealed conduit and preparation method thereof |
| CN105585142A (en) * | 2016-01-08 | 2016-05-18 | 青岛洁能环保有限公司 | Industrial circulating water synergist |
| CN106479467A (en) * | 2016-08-30 | 2017-03-08 | 陕西省石油化工研究设计院 | A kind of environment-friendly type is fluorinated calcium inhibitorses |
| CN107652959A (en) * | 2017-09-26 | 2018-02-02 | 天津亿利科能源科技发展股份有限公司 | A kind of oilfield transportation system and the neutral scale remover of flood pattern |
| CN110079807A (en) * | 2019-04-08 | 2019-08-02 | 中国石油化工股份有限公司河南油田分公司石油工程技术研究院 | A kind of oil field antiscale corrosion inhibiter and preparation method thereof suitable for high temperature |
| CN111321412A (en) * | 2020-03-26 | 2020-06-23 | 西安中瑞石油化工科技有限公司 | High-salt-content weak-acid oil field water quality corrosion inhibitor with chloride ion content of more than 5 ten thousand ppm |
| CN111850568A (en) * | 2020-06-30 | 2020-10-30 | 中国石油天然气集团有限公司 | Corrosion inhibitor for preventing scale corrosion of oilfield ground gathering and transportation pipeline and preparation method thereof |
| CN117051398A (en) * | 2023-08-21 | 2023-11-14 | 河北大沧石化科技有限公司 | Environment-friendly gas-liquid two-phase corrosion inhibitor |
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2014
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104963666A (en) * | 2015-06-17 | 2015-10-07 | 成都高普石油工程技术有限公司 | Oil extraction method for improving crude oil recovery efficiency |
| CN105039995A (en) * | 2015-07-09 | 2015-11-11 | 潍坊友容实业有限公司 | Scale and corrosion inhibitor special for saline-alkali soil salt drainage concealed conduit and preparation method thereof |
| CN105585142A (en) * | 2016-01-08 | 2016-05-18 | 青岛洁能环保有限公司 | Industrial circulating water synergist |
| CN106479467A (en) * | 2016-08-30 | 2017-03-08 | 陕西省石油化工研究设计院 | A kind of environment-friendly type is fluorinated calcium inhibitorses |
| CN107652959A (en) * | 2017-09-26 | 2018-02-02 | 天津亿利科能源科技发展股份有限公司 | A kind of oilfield transportation system and the neutral scale remover of flood pattern |
| CN110079807A (en) * | 2019-04-08 | 2019-08-02 | 中国石油化工股份有限公司河南油田分公司石油工程技术研究院 | A kind of oil field antiscale corrosion inhibiter and preparation method thereof suitable for high temperature |
| CN111321412A (en) * | 2020-03-26 | 2020-06-23 | 西安中瑞石油化工科技有限公司 | High-salt-content weak-acid oil field water quality corrosion inhibitor with chloride ion content of more than 5 ten thousand ppm |
| CN111850568A (en) * | 2020-06-30 | 2020-10-30 | 中国石油天然气集团有限公司 | Corrosion inhibitor for preventing scale corrosion of oilfield ground gathering and transportation pipeline and preparation method thereof |
| CN117051398A (en) * | 2023-08-21 | 2023-11-14 | 河北大沧石化科技有限公司 | Environment-friendly gas-liquid two-phase corrosion inhibitor |
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| Publication number | Publication date |
|---|---|
| CN103910438B (en) | 2015-03-04 |
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