CN1524923A - Oil well cleaning antiscale - Google Patents
Oil well cleaning antiscale Download PDFInfo
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- CN1524923A CN1524923A CNA031065023A CN03106502A CN1524923A CN 1524923 A CN1524923 A CN 1524923A CN A031065023 A CNA031065023 A CN A031065023A CN 03106502 A CN03106502 A CN 03106502A CN 1524923 A CN1524923 A CN 1524923A
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- oil well
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- hcl
- ethylene glycol
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Abstract
The invention relates to the field of oil field chemistry, in particular an antiscaling compound for oil well, wherein its proportion by weight are, HCL : Hac : organic quarternary ammonium salt 1CT1-3 : dodecylbenzene sulfonic acid sodium and alkyl phenol polyoxyethylene ether surface active agent composite (weight ratio 4 : 6) : industrial benzine naphtha : ethylene glycol monobutyl ether or ethanol : organophosphorus ester or salt : octadecyl alcohol polyoxyethylene ether : water = 5-10% : 3-5% : 0.5-1.0% : 0.4-0.8% : 5-10% : 5-10% : 0.2-0.6% : 0.2-0.6% : 60-80%. The antiscaling compound can not only dissolve non-organic scale, but also dissolve organic scale.
Description
Technical field: the present invention relates to the oilfield chemistry field, is a kind of oil well cleaning antiscale.
Background technology: grand celebration is peripheral to be the hyposmosis waterflooding oil field, because the thermodynamic phase and the chemical incompatibility of local water and injection water, in oil recovery process, because the variation of series of factors such as pressure, temperature, often cause the scale problems on well wellbore, ground system and stratum, bring very big harm to production.Because scale effect, cause oil well output to descend, increased the rountrip of oil well, cause oil well to stop production or scrap.Usually adopt periodicity to add chemical cleaning antiscale and solve this problem.Present cleaning antiscale also exists and adds dose and reach dosing greatly and frequently wait not enough, and also influential to dehydrating of crude oil.
Summary of the invention: the objective of the invention is to develop a kind of overcome add the big and frequent shortcoming of dosing of dose in the past, to not influence of dehydrating of crude oil, not only can dissolve inorganic scale, and the molten organic deposition of energy, interfacial tension is low, washing oil is effective, organic depositions such as wax, pitch, colloid there is certain dissolving power, corrosion inhibition is better, is lower than industry standard, and does not have spot corrosion, harmless substantially to underground equipment, good oil well cleaning antiscale to the breakdown of emulsion of crude oil.The present invention is by HCl, HAc, organic quaternary amine CT1-3, Sodium dodecylbenzene sulfonate alkylphenol polyoxyethylene surfactant blend (part by weight: 4: 6), industrial naphthas, ethylene glycol monobutyl ether or ethanol, organophosphate or salt, the Stearyl alcohol Soxylat A 25-7 is formed, and prescription by its weight ratio is: HCl: HAc: organic quaternary amine CT1-3: Sodium dodecylbenzene sulfonate alkylphenol polyoxyethylene surfactant blend (part by weight: 4: 6): industrial naphthas: ethylene glycol monobutyl ether or ethanol: organophosphate or salt: Stearyl alcohol Soxylat A 25-7: water=5～10%: 3～5%: 0.5～1.0%: 0.4～0.8%: 5～10%: 5～10%: 0.2～0.6%: 0.2～0.6%: 60～80%.The present invention has has stronger dissolving power to organic depositions such as inorganic scale in the pit shaft and wax, pitch, colloids.Interfacial tension is low, washing oil is effective, and corrosion inhibition is good, and average corrosion rate is 0.643g/m
2.h, and there is not spot corrosion, harmless substantially to underground equipment.Breakdown of emulsion to crude oil is good, and when downhole temperature, 2h crude oil 100% breakdown of emulsion is to not influence of dehydrating of crude oil.Have and to prolong the pump detection period of oil well effectively, guarantee the oil well ordinary production, all can use with interior at subzero 40 ℃ because of dirt, satisfy the northern area winter construction, advantages such as this cleaning antiscale is the acidic liquid of low toxicity, low injury, is easy to preparation, and the cleaning antiscale price after the preparation is suitable.
Embodiment one: adopt HCl, HAc, organic quaternary amine CT1-3, Sodium dodecylbenzene sulfonate alkylphenol polyoxyethylene surfactant blend (part by weight: 4: 6), industrial naphthas, ethylene glycol monobutyl ether, organophosphate, Stearyl alcohol Soxylat A 25-7 to be mixed with the aqueous solution.Be made into HCl: HAc: organic quaternary amine type inhibiter CT1-3: Sodium dodecylbenzene sulfonate alkylphenol polyoxyethylene surfactant blend (part by weight: 4: 6): industrial naphthas: ethylene glycol monobutyl ether: organophosphate: Stearyl alcohol Soxylat A 25-7: water=8%: 3%: 1.0%: 0.8%: 8%: 10%: 0.2%: 0.6%: 68.4% cleaning antiscale;
Embodiment two: the method with embodiment one can be mixed with HCl: HAc: organic quaternary amine CT1-3: Sodium dodecylbenzene sulfonate alkylphenol polyoxyethylene surfactant blend (part by weight: 4: 6): industrial naphthas: ethylene glycol monobutyl ether: organophosphate: Stearyl alcohol Soxylat A 25-7: water=7%: 5%: 0.8%: 0.8%: 10%: 10%: 0.2%: 0.6%: 65.6% cleaning antiscale;
Embodiment three: the method with embodiment one is mixed with HCl: HAc: organic quaternary amine CT1-3: Sodium dodecylbenzene sulfonate alkylphenol polyoxyethylene surfactant blend (part by weight: 4: 6): industrial naphthas: ethylene glycol monobutyl ether: organophosphate: Stearyl alcohol Soxylat A 25-7: water=7%: 3%: 0.8%: 0.8%: 10%: 10%: 0.2%: 0.4%: 67.8% cleaning antiscale;
Embodiment four: the method with embodiment one can be mixed with HCl: HAc: organic quaternary amine CT1-3: Sodium dodecylbenzene sulfonate alkylphenol polyoxyethylene surfactant blend (part by weight: 4: 6): industrial naphthas: ethylene glycol monobutyl ether: organophosphate: Stearyl alcohol Soxylat A 25-7: water=5%: 5%: 0.5%: 0.6%: 8%: 8%: 0.4%: 0.4%: 72.1% cleaning antiscale;
Embodiment five: the method with embodiment one can be mixed with HCl: HAc: organic quaternary amine CT1-3: Sodium dodecylbenzene sulfonate alkylphenol polyoxyethylene surfactant blend (part by weight: 4: 6): industrial naphthas: ethylene glycol monobutyl ether: organophosphate: Stearyl alcohol Soxylat A 25-7: water=5%: 5%: 0.5%: 0.4%: 5%: 5%: 0.4%: 0.4%: 78.3% cleaning antiscale.
According to on-the-spot oil well fouling practical situation, select the proportioning of each component of cleaning antiscale, can construct after preparing.This cleaning antiscale has adopted the milk sap prescription of clear anti-one, has the two-phase solvency action of dissolving organic deposition, inorganic scale.Snaking composition HCl, HAc in the prescription can with inorganic composition water generation reaction and the CO such as lime carbonate in the dirt
2Deng; Organic wax in industrial naphthas and the ethylene glycol monobutyl ether solubilized dirt, pitch etc.; High molecular polymer in organophosphate or the salt and complexing agent can make iron ion, calcium ion, magnesium ion in the produced liquid in oil well form the complex compound of stable ring texture, prevent the generation of dirt.In addition, because the antiscale component in the absorption on the brilliant surface of dirt, forms diffusion double layer around crystallization, make dirty brilliant surface charging, it is brilliant coalescent to suppress dirt.The Stearyl alcohol Soxylat A 25-7 can make cleaning antiscale and crude oil fast emulsion breaking.Therefore, this cleaning antiscale can effectively be removed the well wellbore fouling, prolongs the pump detection period of oil well, reduces oil well inspection pump number of times, and injection technology is simple and easy to do, has become to keep the requisite measure that peripheral oilfield is produced; Cleaning antiscale site operation of the present invention is simple and easy to do, need not take the dosing pump truck, and ordinary production during the oil well dosing does not influence oil well output, to the not influence of post-processed of crude oil.
Claims (1)
1, a kind of oil well cleaning antiscale, by HCl, HAc, organic quaternary amine CT1-3, Sodium dodecylbenzene sulfonate alkylphenol polyoxyethylene surfactant blend (part by weight: 4: 6), industrial naphthas, ethylene glycol monobutyl ether or ethanol, organophosphate or salt, the Stearyl alcohol Soxylat A 25-7 is formed, and it is characterized in that prescription by its weight ratio is: HCl: HAc: organic quaternary amine CT1-3: Sodium dodecylbenzene sulfonate alkylphenol polyoxyethylene surfactant blend (part by weight: 4: 6): industrial naphthas: ethylene glycol monobutyl ether or ethanol: organophosphate or salt: Stearyl alcohol Soxylat A 25-7: water=5～10%: 3～5%: 0.5～1.0%: 0.4～0.8%: 5～10%: 5～10%: 0.2～0.6%: 0.2～0.6%: 60～80%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031065023A CN1524923A (en) | 2003-02-25 | 2003-02-25 | Oil well cleaning antiscale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031065023A CN1524923A (en) | 2003-02-25 | 2003-02-25 | Oil well cleaning antiscale |
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| CN1524923A true CN1524923A (en) | 2004-09-01 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101755027A (en) * | 2007-07-20 | 2010-06-23 | 罗迪亚公司 | Method for recovering crude oil from a subterranean formation |
| CN101105118B (en) * | 2006-07-11 | 2010-06-30 | 成都孚吉科技有限责任公司 | Solid anti-scaling agent and preparation process thereof |
| CN102040992A (en) * | 2010-11-16 | 2011-05-04 | 赵金树 | Rod blockage prevention liquid for carbon dioxide huff-puff enhanced oil recovery and injection method thereof |
| CN101089118B (en) * | 2006-06-16 | 2011-08-31 | 长江大学 | Acidifying agent composition |
| CN103206192A (en) * | 2013-04-16 | 2013-07-17 | 西南石油大学 | Method for rapidly cleaning insoluble dirt in oil wells and oil reservoirs close to oil wells |
| 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 |
| CN103421477A (en) * | 2012-05-21 | 2013-12-04 | 克拉玛依市三达新技术开发有限责任公司 | Preparation method of blocking remover for relieving near-wellbore area gas condensate and particle obstruction |
| CN103899297A (en) * | 2014-01-02 | 2014-07-02 | 赵金树 | Pump efficiency testing method for improving throughput success rate of carbon dioxide |
| CN105176507A (en) * | 2015-08-10 | 2015-12-23 | 李佳芯 | Composite ionic fluorinated alkyl benzene sulfonate oil-sand separation agent and preparation method and application thereof |
| CN106190073A (en) * | 2016-07-05 | 2016-12-07 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | A kind of hypotonic complicated fouling reservoir multi-functional cleaning antiscale formula and preparation method |
| CN106609133A (en) * | 2016-04-07 | 2017-05-03 | 陕西长兴石油科技有限公司 | Multi-system long-time antiscale agent for oil well |
| CN107162071A (en) * | 2017-05-26 | 2017-09-15 | 中油辽河工程有限公司 | Polymer-bearing waste-water filter leaching material cleaning |
| CN110215731A (en) * | 2019-05-20 | 2019-09-10 | 广州派安环保科技有限公司 | A kind of crystallizing inhibitor and preparation method thereof |
-
2003
- 2003-02-25 CN CNA031065023A patent/CN1524923A/en active Pending
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101089118B (en) * | 2006-06-16 | 2011-08-31 | 长江大学 | Acidifying agent composition |
| CN101105118B (en) * | 2006-07-11 | 2010-06-30 | 成都孚吉科技有限责任公司 | Solid anti-scaling agent and preparation process thereof |
| CN101755027B (en) * | 2007-07-20 | 2014-11-19 | 罗迪亚公司 | Method for recovering crude oil from a subterranean formation |
| CN101755027A (en) * | 2007-07-20 | 2010-06-23 | 罗迪亚公司 | Method for recovering crude oil from a subterranean formation |
| CN102040992A (en) * | 2010-11-16 | 2011-05-04 | 赵金树 | Rod blockage prevention liquid for carbon dioxide huff-puff enhanced oil recovery and injection method thereof |
| CN102040992B (en) * | 2010-11-16 | 2013-05-22 | 赵金树 | Rod blockage prevention liquid for carbon dioxide huff-puff enhanced oil recovery and injection method thereof |
| CN103421477A (en) * | 2012-05-21 | 2013-12-04 | 克拉玛依市三达新技术开发有限责任公司 | Preparation method of blocking remover for relieving near-wellbore area gas condensate and particle obstruction |
| CN103421477B (en) * | 2012-05-21 | 2017-05-10 | 克拉玛依市三达新技术开发有限责任公司 | Method for relieving near-wellbore area gas condensate and particle obstruction |
| 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 |
| CN103206192A (en) * | 2013-04-16 | 2013-07-17 | 西南石油大学 | Method for rapidly cleaning insoluble dirt in oil wells and oil reservoirs close to oil wells |
| CN103206192B (en) * | 2013-04-16 | 2016-01-20 | 西南石油大学 | A kind of method of quick removing oil well and nearly well oil reservoir indissoluble dirt |
| CN103899297B (en) * | 2014-01-02 | 2016-06-29 | 大庆金军石油科技开发有限公司 | A kind of improve CO_2 stimulation success rate test pump efficiency method |
| CN103899297A (en) * | 2014-01-02 | 2014-07-02 | 赵金树 | Pump efficiency testing method for improving throughput success rate of carbon dioxide |
| CN105176507A (en) * | 2015-08-10 | 2015-12-23 | 李佳芯 | Composite ionic fluorinated alkyl benzene sulfonate oil-sand separation agent and preparation method and application thereof |
| CN105176507B (en) * | 2015-08-10 | 2018-12-21 | 李佳芯 | A kind of husky release agent of compound ion fluorinated alkyl benzene sulfonate oil and preparation method and application |
| CN106609133A (en) * | 2016-04-07 | 2017-05-03 | 陕西长兴石油科技有限公司 | Multi-system long-time antiscale agent for oil well |
| CN106190073A (en) * | 2016-07-05 | 2016-12-07 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | A kind of hypotonic complicated fouling reservoir multi-functional cleaning antiscale formula and preparation method |
| CN106190073B (en) * | 2016-07-05 | 2018-11-13 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | The multi-functional cleaning antiscale formula of the hypotonic complexity fouling reservoir of one kind and preparation method |
| CN107162071A (en) * | 2017-05-26 | 2017-09-15 | 中油辽河工程有限公司 | Polymer-bearing waste-water filter leaching material cleaning |
| CN110215731A (en) * | 2019-05-20 | 2019-09-10 | 广州派安环保科技有限公司 | A kind of crystallizing inhibitor and preparation method thereof |
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