CN101768430A - Scale inhibition antiscaling agent for oil-water well salt prevention and scale-inhibition operation and preparation process thereof - Google Patents
Scale inhibition antiscaling agent for oil-water well salt prevention and scale-inhibition operation and preparation process thereof Download PDFInfo
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- CN101768430A CN101768430A CN 201010118367 CN201010118367A CN101768430A CN 101768430 A CN101768430 A CN 101768430A CN 201010118367 CN201010118367 CN 201010118367 CN 201010118367 A CN201010118367 A CN 201010118367A CN 101768430 A CN101768430 A CN 101768430A
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Abstract
The invention relates to oil-water well salt prevention and scale-inhibition operation in the oil-field development process and a scale-inhibition agent used in a cooling circulation system, in particular to a scale inhibition antiscaling agent for oil-water well salt prevention and scale-inhibition operation and a preparation process thereof; the scale inhibition antiscaling agent is characterized in that: the scale inhibition antiscaling agent at least comprises 1) 2.0-2.5kg of ethanediamine tetramethylene phosphonate; 2) 4.5-5.0kg of polymaleic acid; 3) 4.5-5.0kg of sodium hexametaphosphate; 4) 6.5-7.0kg of triethanolamine; the preparation process of the scale inhibition antiscaling agent for oil-water well salt prevention and scale-inhibition operation is characterized in that: at normal temperature, 4.5-5.0kg of the sodium hexametaphosphate is dissolved by 30-35kg of clear water and is continuously stirred for 20-40 minutes, and then 6.5-7.0kg of the triethanolamine is slowly added in the mixture, after complete mixing, and 2.0-2.5kg of the ethanediamine tetramethylene phosphonate and 4.5-5.0kg of the polymaleic acid are slowly added continuously while stirring is carried out, so as to prepare the scale inhibition antiscaling agent; the scale inhibition antiscaling agent has hypersalinity resistance and high calcium ion resistance, takes alkalescence-neutrality, and has no strong corrosivity to injection-production equipment.
Description
Technical field
The present invention relates to that a kind of anti-salt scale inhibition operation that is applicable to oil and water well in the oilfield development process and cooling circulating water system use Scale inhibitors, scale inhibition scale inhibitor and preparation technology that particularly a kind of oil-water well salt prevention scale inhibition operation is used.
Background technology
The scale inhibition scale inhibitor has thousands of kinds at present and puts on market, as Nalco-8365, the Nalco-3350 of the U.S.; The T-225 of Japan, NW-25 etc.The research of the scale inhibitor of China is started late, but tempo is very fast, and at present external most of product China also can produce.But take a broad view of the not anti-high salinity of most products, not anti-high-calcium ionic on the market, and all be strongly-acid, to pipeline, annotate and to adopt equipment severe corrosive is arranged, drawbacks such as the vitriol scale inhibition performance are low.
Summary of the invention
The purpose of this invention is to provide a kind of anti-high salinity, anti-high-calcium ionic, and all be weakly alkaline-neutrality, to pipeline, annotate and to adopt equipment and do not have severe corrosive, high a kind of oil-water well salt prevention scale inhibition operation is used to the vitriol scale inhibition performance scale inhibition scale inhibitor and preparation technology.
The object of the present invention is achieved like this, and the scale inhibition scale inhibitor that a kind of oil-water well salt prevention scale inhibition operation is used is characterized in that: comprise at least: 1) ethylene diamine tetra methylene phosphonic acid salt: 2.0-2.5Kg; 2) polymaleic acid: 4.5-5.0Kg; 3) Sodium hexametaphosphate 99: 4.5-5.0Kg; 4) trolamine: 6.5-7.0Kg is formulated.
The preparation technology of the scale inhibition scale inhibitor that a kind of oil-water well salt prevention scale inhibition operation is used, it is characterized in that: at normal temperatures, earlier with 30-35Kg clear water dissolving 4.5-5.0Kg Sodium hexametaphosphate 99, constantly stirred 20-40 minute, slowly add the 6.5-7.0Kg trolamine then, after waiting both thorough mixing, it is formulated to continue successively slowly to add 2.0-2.5Kg ethylene diamine tetra methylene phosphonic acid salt and 4.5-5.0Kg polymaleic acid under the situation that stirring does not stop.
Advantage of the present invention is: the operation of anti-salt scale inhibition and the cooling circulating water system that are applicable to oil and water well in the oilfield development process.Scale inhibitors (YCZG-1) corrodibility is little, and toxicity is low, in high salinity (〉 30 * 10
4Mg/l) and high calcium (〉 3000mg/l) scale inhibition performance height under the complicated aqueous systems condition, during consumption 20mg/L, YCZG-1 is to CaSO
4Scale inhibition performance reaches 98.6%, to CaCO
3Scale inhibition performance reaches 96.8%, and ground system fouling rate is controlled at 0.22mm/a, and the former salt crust fouling oil and water well phase of being excused from a college course prolongs more than 2 times.
Embodiment
The preparation technology of 1 one kinds of scale inhibition scale inhibitors of embodiment prepares ethylene diamine tetra methylene phosphonic acid salt 2.0Kg, polymaleic acid 4.5Kg, Sodium hexametaphosphate 99 5.0Kg and trolamine 7.0Kg; At normal temperatures, with 30Kg clear water dissolving 5.0Kg Sodium hexametaphosphate 99, constantly stirred 20 minutes earlier, slowly add the 7.0Kg trolamine then, behind both thorough mixing, continue successively slowly to add 2.0Kg ethylene diamine tetra methylene phosphonic acid salt and 4.5Kg polymaleic acid under the situation that restir does not stop.
The preparation technology of 2 one kinds of scale inhibition scale inhibitors of embodiment prepares ethylene diamine tetra methylene phosphonic acid salt 2.5Kg, polymaleic acid 5.0Kg, Sodium hexametaphosphate 99 4.5Kg and trolamine 6.5Kg; At normal temperatures, with 35Kg clear water dissolving 4.5Kg Sodium hexametaphosphate 99, constantly stirred 40 minutes earlier, slowly add the 6.5Kg trolamine then, behind both thorough mixing, continue successively slowly to add 2.5Kg ethylene diamine tetra methylene phosphonic acid salt and 5.0Kg polymaleic acid under the situation that restir does not stop.
The present invention is through adding use, solved the complicated aqueous systems oil and water well of a high salinity salt crust fouling production difficult problem, guarantees the oil and water well ordinary production, improves the oil-field development effect, reduces production costs, and the solution of oil field of the same type salt crust scale problems is had fine directive significance.Maintainability well in operation time by reduce in 68 wells/year 8 wells/year, oil well repair free period extended to 472 days by 232 days before implementing; The 25 mouthful oil wells serious to fouling have carried out the descaling and blockage relieving operation, and year accumulative total increases 12182 tons of oil.Carried out the salt crust fouling comprehensive regulation in 4 oil fields (wellblock), water filling ground system fouling rate is controlled at below the 0.22mm/a, and prolong the work-ing life of water injection equipment, technical process and water injection well greatly.
Claims (2)
1. the scale inhibition scale inhibitor that uses of an oil-water well salt prevention scale inhibition operation is characterized in that: which comprises at least:
1) ethylene diamine tetra methylene phosphonic acid salt: 2.0-2.5Kg;
2) polymaleic acid: 4.5-5.0Kg;
3) Sodium hexametaphosphate 99: 4.5-5.0Kg;
4) trolamine: 6.5-7.0Kg is formulated.
2. the preparation technology of the scale inhibition scale inhibitor that uses of an oil-water well salt prevention scale inhibition operation, it is characterized in that: prepare ethylene diamine tetra methylene phosphonic acid salt, polymaleic acid, Sodium hexametaphosphate 99 and trolamine in proportion, at normal temperatures, earlier with 30-35Kg clear water dissolving 4.5-5.0Kg Sodium hexametaphosphate 99, constantly stirred 20-40 minute, slowly add the 6.5-7.0Kg trolamine then, after waiting both thorough mixing, it is formulated to continue successively slowly to add 2.0-2.5Kg ethylene diamine tetra methylene phosphonic acid salt and 4.5-5.0Kg polymaleic acid under the situation that stirring does not stop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101183675A CN101768430B (en) | 2010-03-05 | 2010-03-05 | Scale inhibition antiscaling agent for oil-water well salt prevention and scale-inhibition operation and preparation process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101183675A CN101768430B (en) | 2010-03-05 | 2010-03-05 | Scale inhibition antiscaling agent for oil-water well salt prevention and scale-inhibition operation and preparation process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101768430A true CN101768430A (en) | 2010-07-07 |
| CN101768430B CN101768430B (en) | 2012-05-09 |
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| CN2010101183675A Expired - Fee Related CN101768430B (en) | 2010-03-05 | 2010-03-05 | Scale inhibition antiscaling agent for oil-water well salt prevention and scale-inhibition operation and preparation process thereof |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102383120A (en) * | 2011-10-18 | 2012-03-21 | 广西民族大学 | Preparation method and film formation liquid for aluminium-alloy organic sealing film |
| CN102775973A (en) * | 2012-07-17 | 2012-11-14 | 大庆井升伟业油田技术服务有限公司 | Scale removing agent applicable to alkaline-surfactant-polymer flooding and scale removing and unfreezing process |
| CN103224776A (en) * | 2013-03-29 | 2013-07-31 | 中国石油天然气股份有限公司 | Oil field flooding stratum protective agent and preparation method and application thereof |
| CN104726082A (en) * | 2015-03-27 | 2015-06-24 | 中国石油天然气集团公司 | Organic base scale removing agent applied to three-component compound flooding and preparation method of organic base scale removing agent |
| CN106014200A (en) * | 2016-05-20 | 2016-10-12 | 中国石油集团渤海钻探工程有限公司 | Well drilling method for penetrating gypsum horizon |
| CN106459741A (en) * | 2014-05-29 | 2017-02-22 | 陶氏环球技术有限责任公司 | Thermally stable polymeric scale inhibitor compositions |
| CN106591839A (en) * | 2016-10-31 | 2017-04-26 | 无锡市永兴金属软管有限公司 | Scale-inhibiting powder for corrugated metal pipe and preparation method thereof |
| CN108641694A (en) * | 2018-04-27 | 2018-10-12 | 长江大学 | A kind of oil well descaling agent and preparation method thereof |
| CN109796952A (en) * | 2019-03-28 | 2019-05-24 | 曹高维 | A kind of compound anti-salt production method for salt de-plugging anti-in pit shaft |
| US10669470B2 (en) | 2017-05-23 | 2020-06-02 | Ecolab Usa Inc. | Dilution skid and injection system for solid/high viscosity liquid chemicals |
| US10717918B2 (en) | 2017-05-23 | 2020-07-21 | Ecolab Usa Inc. | Injection system for controlled delivery of solid oil field chemicals |
| CN111808591A (en) * | 2020-07-27 | 2020-10-23 | 北京贝斯特佳科技有限公司 | Shaft salt crystal dispersant, and regulation and control method and application thereof |
| US20230043123A1 (en) * | 2019-12-30 | 2023-02-09 | Petróleo Brasileiro S.A. - Petrobras | Method for the combined application of scale remover and inhibitor |
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| EP1413710A1 (en) * | 2002-10-22 | 2004-04-28 | Halliburton Energy Services, Inc. | Introducing treating fluids into subterranean producing zones |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102383120A (en) * | 2011-10-18 | 2012-03-21 | 广西民族大学 | Preparation method and film formation liquid for aluminium-alloy organic sealing film |
| CN102775973A (en) * | 2012-07-17 | 2012-11-14 | 大庆井升伟业油田技术服务有限公司 | Scale removing agent applicable to alkaline-surfactant-polymer flooding and scale removing and unfreezing process |
| CN103224776A (en) * | 2013-03-29 | 2013-07-31 | 中国石油天然气股份有限公司 | Oil field flooding stratum protective agent and preparation method and application thereof |
| CN106459741A (en) * | 2014-05-29 | 2017-02-22 | 陶氏环球技术有限责任公司 | Thermally stable polymeric scale inhibitor compositions |
| CN104726082B (en) * | 2015-03-27 | 2018-05-15 | 中国石油天然气集团公司 | A kind of organic base descaling agent applied to ternary composite driving and preparation method thereof |
| CN104726082A (en) * | 2015-03-27 | 2015-06-24 | 中国石油天然气集团公司 | Organic base scale removing agent applied to three-component compound flooding and preparation method of organic base scale removing agent |
| CN106014200A (en) * | 2016-05-20 | 2016-10-12 | 中国石油集团渤海钻探工程有限公司 | Well drilling method for penetrating gypsum horizon |
| CN106591839A (en) * | 2016-10-31 | 2017-04-26 | 无锡市永兴金属软管有限公司 | Scale-inhibiting powder for corrugated metal pipe and preparation method thereof |
| US10669470B2 (en) | 2017-05-23 | 2020-06-02 | Ecolab Usa Inc. | Dilution skid and injection system for solid/high viscosity liquid chemicals |
| US10717918B2 (en) | 2017-05-23 | 2020-07-21 | Ecolab Usa Inc. | Injection system for controlled delivery of solid oil field chemicals |
| CN108641694A (en) * | 2018-04-27 | 2018-10-12 | 长江大学 | A kind of oil well descaling agent and preparation method thereof |
| CN109796952A (en) * | 2019-03-28 | 2019-05-24 | 曹高维 | A kind of compound anti-salt production method for salt de-plugging anti-in pit shaft |
| US20230043123A1 (en) * | 2019-12-30 | 2023-02-09 | Petróleo Brasileiro S.A. - Petrobras | Method for the combined application of scale remover and inhibitor |
| US11952534B2 (en) * | 2019-12-30 | 2024-04-09 | Petróbras Brasileiro S. A.—Petrobras | Method for the combined application of scale remover and inhibitor |
| CN111808591A (en) * | 2020-07-27 | 2020-10-23 | 北京贝斯特佳科技有限公司 | Shaft salt crystal dispersant, and regulation and control method and application thereof |
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| CN101768430B (en) | 2012-05-09 |
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Granted publication date: 20120509 Termination date: 20140305 |