CN102559166A - Ampholytic surfactant fracturing fluid and preparation method thereof - Google Patents
Ampholytic surfactant fracturing fluid and preparation method thereof Download PDFInfo
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- CN102559166A CN102559166A CN2011104465339A CN201110446533A CN102559166A CN 102559166 A CN102559166 A CN 102559166A CN 2011104465339 A CN2011104465339 A CN 2011104465339A CN 201110446533 A CN201110446533 A CN 201110446533A CN 102559166 A CN102559166 A CN 102559166A
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Abstract
The invention relates to ampholytic surfactant fracturing fluid and a preparation method thereof. The ampholytic surfactant fracturing fluid comprises the following components in percentage by mass: 3 to 5 percent of ampholytic surfactant, 0.5 to 1 percent of anionic surfactant, 2 to 4 percent of inorganic salt, 0.3 to 0.5 percent of alcohol with low molecular weight, 0 to 5 percent of pH value regulator, 0.5 percent of clay stabilizer and the balance of water. The preparation method comprises the following steps of: adding the ampholytic surfactant, the anionic surfactant, the alcohol with low molecular weight, the pH value regulator, and the clay stabilizer into water, stirring for 5 to 10 minutes to obtain uniform and stable suspension, adding the inorganic salt, and stirring for 1 to 2 minutes to obtain fluid with high visco-elasticity. The ampholytic surfactant fracturing fluid is used for fracturing of an oil and gas field of which the formation temperature is 60 to 80 DEG C, residues are avoided after gel breaking, and a stratum is not damaged.
Description
Technical field
The present invention relates to a kind of fracturing liquid of waterfrac treatment well stimulation in a kind of exploitation of oil-gas field process, be specifically related to a kind of amphoterics fracturing liquid and preparation method thereof.
Background technology
Pressure break has been developed rapidly and widespread use as the main well stimulation of low-permeability oil gas reservoir, and fracturing liquid is the important component part of fracturing technique.The most frequently used fracturing liquid mainly is to be the aqueous fracturing fluid of viscosifying agent with natural plant, Mierocrystalline cellulose and synthetic polymer both at home and abroad, has obtained widespread use in each oil field at present, and has obtained good effect of increasing production.But the defective of aqueous-based polymers fracturing liquid system is that fracturing liquid rubber-breaking is incomplete; And residue can stop up blowhole and crack behind the broken glue; Reduce crack support belt flow conductivity and hydrocarbon zone rate of permeation, thereby reduce fracturing effect greatly, cause the fracturing yield increasing effect can not reach best.
Summary of the invention
The object of the invention is to provide a kind of fracturing liquid based on amphoterics and preparation method thereof; Contain positively charged ion and anionic hydrophilic base in the amphoterics molecule, the attraction between the zwitterion impels surfactant molecule to arrange closely, can form the micella gel of varying strength in salts solution under different pH values or the acid solution; Available its prepared the working fluid of multiple excellent property; Do not need linking agent, gel breaker and other chemicaladditives, fracturing fluid residue content is almost nil, does not therefore have formation damage and can make filling bed keep good flow conductivity; Can more effective raising oil gas well productivity, fully reach the purpose of well fracturing.
Amphoterics fracturing liquid of the present invention comprises amphoterics 3%-5% by mass percentage, AS 0.5%-1%; Inorganic salt 2%-4%, low mass molecule alcohol 0.3%-0.5%, pH value regulator 0%-5%; Clay stabilizer 0.5%, all the other are water.
The of the fracturing fluid preparation method of described amphoterics was divided into for two steps; At first amphoterics, AS, low mass molecule alcohol, pH value regulator and clay stabilizer are added in the entry by certain mass percent; Stir 5-10min; Obtain the suspension liquid of stable homogeneous, add inorganic salt again, promptly obtain having the fluid of good viscoelasticity behind the stirring 1-2min.
Amphoterics of the present invention is an octadecyl betaine, octadecyl dimethyl betaine, amine hydroxybenzene CAB or erucicamide CAB.Described AS is methyl sodiosul foaliphatate or disodium 4-dodecyl-2,4 '-oxydibenzenesulfonate.Described inorganic salt are sodium-chlor.Said low mass molecule alcohol is methyl alcohol or ethanol.Described pH value regulator is a formic acid.Described clay stabilizer is a Repone K.
Amphoterics fracturing liquid of the present invention, adopting amphoterics is main viscosifying agent, AS is auxiliary viscosifying agent; Inorganic salt are gel promotor; Can form viscoelastic fluid in multiviscosisty under the different pH condition, obtain the amphoterics fracturing liquid.The amphoterics fracturing liquid of the present invention preparation have low-viscosity, snappiness, low frictional resistance, height take sand, effectively the control seam high, increase advantages such as seam is long, in the stratum, can break glue with oil, gas, do not have residue behind the broken glue, do not injure the stratum.
The tensio-active agent fracturing liquid of the present invention preparation is through indoor evaluation: temperature resistant capability can reach more than 60 ℃; Be superior to other clean fracturing liquid system; Added entry (or hydro carbons) by 1: 1 and both can thoroughly break glue, final breaking glue solution viscosity is less than 5mPa.S, and system breaking glue solution surface tension value is 23.59mN/m; The IT value is 1.03mN/m, and the explanation system has the good row's of returning performance.
Embodiment
Embodiment 1
Under agitation condition; 5g octadecyl betaine, 1g disodium 4-dodecyl-2,4 '-oxydibenzenesulfonate, 0.5g methyl alcohol, 5g formic acid, Repone K 0.5% are joined 84g zero(ppm) water respectively; Stir 5-10min; Obtain the stable suspension liquid of oyster white, add 4g sodium-chlor again, stir 1-2min and promptly obtain transparent viscoelastic fluid.
Through this amphoterics fracturing liquid performance of the U.S. EX2000 of TA company rheometer test, under 60 ℃, with 170s
-1Viscosity still remains on 40mPas after shearing 1h.
Described in the present embodiment amphoterics fracturing liquid comprises octadecyl betaine 5% by mass percentage, disodium 4-dodecyl-2,4 '-oxydibenzenesulfonate 1%, and methyl alcohol 0.5%, formic acid 5%, sodium-chlor 4%, clay stabilizer 0.5%, all the other are water.The amphoterics fracturing liquid that this instance obtains can be used for the pressing crack construction of FT under 60 ℃ of conditions.
Embodiment 2
Under agitation condition; 5g octadecyl dimethyl betaine, 1g methyl sodiosul foaliphatate, 0.5g methyl alcohol, 0.5g Repone K are joined 89g zero(ppm) water respectively; Stir 5-10min; Obtain the stable suspension liquid of oyster white, add 4g sodium-chlor again, stir 1-2min and promptly obtain transparent viscoelastic fluid.
Through this amphoterics fracturing liquid performance of the U.S. EX2000 of TA company rheometer test, under 60 ℃, with 170s
-1Viscosity still remains on about 36mPas after shearing 1h.
Described in the present embodiment amphoterics fracturing liquid comprises octadecyl dimethyl betaine 5% by mass percentage, methyl sodiosul foaliphatate 1%, and methyl alcohol 0.5%, sodium-chlor 4%, clay stabilizer 0.5%, all the other are water.The amphoterics fracturing liquid that this instance obtains can be used for the pressing crack construction of FT under 60 ℃ of conditions.
Embodiment 3
Under agitation condition; 3g amine hydroxybenzene CAB, 0.5g disodium 4-dodecyl-2,4 '-oxydibenzenesulfonate, 0.3g ethanol, 5g formic acid, 0.5g Repone K are joined 84.7g zero(ppm) water respectively; Stir 5-10min; Obtain the stable suspension liquid of oyster white, add 4g sodium-chlor again, stir 1-2min and promptly obtain transparent viscoelastic fluid.
Through this amphoterics fracturing liquid performance of the U.S. EX2000 of TA company rheometer test, under 60 ℃, with 170s
-1Viscosity still remains on about 55mPas after shearing 1h.
Described in the present embodiment amphoterics fracturing liquid comprises amine hydroxybenzene CAB 5% by mass percentage, disodium 4-dodecyl-2,4 '-oxydibenzenesulfonate 0.5%, and methyl alcohol 0.3%, formic acid 5%, sodium-chlor 4%, clay stabilizer 0.5%, all the other are water.The amphoterics fracturing liquid that this instance obtains can be used for the pressing crack construction of FT under 60 ℃ of conditions.
Embodiment 4
Under agitation condition; 5g erucicamide CAB, 1g methyl sodiosul foaliphatate, 0.3g ethanol, 0.5g Repone K are joined 91.2g zero(ppm) water respectively; Stir 5-10min; Obtain the stable suspension liquid of oyster white, add 2g sodium-chlor again, stir 1-2min and promptly obtain transparent viscoelastic fluid.
Through this amphoterics fracturing liquid performance of the U.S. EX2000 of TA company rheometer test, under 80 ℃, with 170s
-1Viscosity still remains on about 34mPas after shearing 1h.
Described in the present embodiment amphoterics fracturing liquid comprises erucicamide CAB 5% by mass percentage, methyl sodiosul foaliphatate 1%, and methyl alcohol 0.3%, sodium-chlor 2%, clay stabilizer 0.5%, all the other are water.The amphoterics fracturing liquid that this instance obtains can be used for the pressing crack construction of FT under 60-80 ℃ of condition.
Claims (7)
1. amphoterics fracturing liquid, it is characterized in that: described amphoterics fracturing liquid comprises amphoterics 3%-5% by mass percentage; AS 0.5%-1%; Inorganic salt 2%-4%, low mass molecule alcohol 0.3%-0.5%, pH value regulator 0%-5%; Clay stabilizer 0.5%, all the other are water;
Described amphoterics octadecyl betaine, octadecyl dimethyl betaine, amine hydroxybenzene CAB or erucicamide CAB.
2. like claims 1 described amphoterics fracturing liquid, it is characterized in that: described AS is methyl sodiosul foaliphatate or disodium 4-dodecyl-2,4 '-oxydibenzenesulfonate.
3. like claims 1 described amphoterics fracturing liquid, it is characterized in that: described inorganic salt are sodium-chlor.
4. like claims 1 described amphoterics fracturing liquid, it is characterized in that: said low mass molecule alcohol is methyl alcohol or ethanol.
5. like claims 1 described amphoterics fracturing liquid, it is characterized in that: described pH value regulator is a formic acid.
6. like claims 1 described amphoterics fracturing liquid, it is characterized in that: described clay stabilizer is a Repone K.
7. of the fracturing fluid preparation method of claims 1 described amphoterics; It is characterized in that: at first amphoterics, AS, low mass molecule alcohol, pH value regulator and clay stabilizer are added in the entry by certain mass percent; Stir 5-10min; Obtain the suspension liquid of stable homogeneous, add inorganic salt again, promptly obtain having the fluid of good viscoelasticity behind the stirring 1-2min.
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102851017A (en) * | 2012-08-16 | 2013-01-02 | 四川西普化工股份有限公司 | Viscous-elastic clean fracturing fluid containing erucic acid betaines |
| CN103421481A (en) * | 2013-09-04 | 2013-12-04 | 上海海瑰化工科技有限公司 | Glycine betaine surfactant composition system and purpose thereof |
| CN103865511A (en) * | 2012-12-11 | 2014-06-18 | 中国石油天然气股份有限公司 | Visco-elastic surfactant fracturing fluid, and preparation method and application thereof |
| CN104073235A (en) * | 2014-06-19 | 2014-10-01 | 西安石油大学 | Long-carbon-chain amide glycine betaine clean fracturing fluid and preparation method thereof |
| CN104449644A (en) * | 2014-05-24 | 2015-03-25 | 濮阳市新庆石油科技有限公司 | Activator capable of initiating and regulating electric attraction among chemical molecules and preparation method thereof |
| CN106590611A (en) * | 2016-11-17 | 2017-04-26 | 新疆正通石油天然气股份有限公司 | Fracturing fluid of crosslinking association polymer and production method thereof |
| CN107674668A (en) * | 2017-11-10 | 2018-02-09 | 河北中大永迪生物科技有限公司 | A kind of high temperature aqueous-based fracturing fluid of clean type |
| CN107794030A (en) * | 2017-11-27 | 2018-03-13 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of imitative recyclable clean fracturing fluid of peptide type |
| CN108504346A (en) * | 2018-05-02 | 2018-09-07 | 四川大学 | A kind of antifreeze clean fracturing fluid and preparation method thereof |
| CN108690590A (en) * | 2017-04-06 | 2018-10-23 | 中国石油化工股份有限公司 | gas well foam discharging agent and its preparation method and application |
| CN109111910A (en) * | 2018-08-15 | 2019-01-01 | 河北中大永迪生物科技有限公司 | A kind of clean type air foam fracturing fluid |
| CN109135713A (en) * | 2018-09-05 | 2019-01-04 | 安徽炎胜新材料科技有限公司 | A kind of clean fracturing fluid and preparation method thereof for high salinity recovered water |
| CN109517591A (en) * | 2018-11-15 | 2019-03-26 | 中国石油化工股份有限公司石油勘探开发研究院 | A kind of high temperature resistant, Low Damage clean fracturing fluid |
| CN111073626A (en) * | 2019-12-30 | 2020-04-28 | 陕西省石油化工研究设计院 | Clean fracturing fluid for low-permeability, high-temperature-resistant and high-pressure-resistant reservoir and preparation method thereof |
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| CN104371702A (en) * | 2014-11-03 | 2015-02-25 | 刘栋 | Discharge adding agent for fracturing and acidizing |
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| CN101812290A (en) * | 2010-05-11 | 2010-08-25 | 陕西科技大学 | Acid clean fracturing fluid and preparation method thereof |
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| US20050077047A1 (en) * | 2003-10-10 | 2005-04-14 | Jiten Chatterji | Methods of fracturing a subterranean formation using a pH dependent foamed fracturing fluid |
| US20060084579A1 (en) * | 2004-10-15 | 2006-04-20 | Berger Paul D | Viscoelastic surfactant mixtures |
| CN101812290A (en) * | 2010-05-11 | 2010-08-25 | 陕西科技大学 | Acid clean fracturing fluid and preparation method thereof |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102851017A (en) * | 2012-08-16 | 2013-01-02 | 四川西普化工股份有限公司 | Viscous-elastic clean fracturing fluid containing erucic acid betaines |
| US9856413B2 (en) | 2012-12-11 | 2018-01-02 | Petrochina Company Limited | Viscoelastic surfactant having multiple hydrophobic and hydrophilic groups as fracturing fluids |
| CN103865511A (en) * | 2012-12-11 | 2014-06-18 | 中国石油天然气股份有限公司 | Visco-elastic surfactant fracturing fluid, and preparation method and application thereof |
| WO2014089994A1 (en) * | 2012-12-11 | 2014-06-19 | Petrochina Company Limited | Viscoelastic surfactant having multiple hydrophobic and hydrophilic groups as fracturing fluids |
| CN103865511B (en) * | 2012-12-11 | 2015-07-08 | 中国石油天然气股份有限公司 | Visco-elastic surfactant fracturing fluid, and preparation method and application thereof |
| CN103421481A (en) * | 2013-09-04 | 2013-12-04 | 上海海瑰化工科技有限公司 | Glycine betaine surfactant composition system and purpose thereof |
| CN104449644A (en) * | 2014-05-24 | 2015-03-25 | 濮阳市新庆石油科技有限公司 | Activator capable of initiating and regulating electric attraction among chemical molecules and preparation method thereof |
| CN104073235A (en) * | 2014-06-19 | 2014-10-01 | 西安石油大学 | Long-carbon-chain amide glycine betaine clean fracturing fluid and preparation method thereof |
| CN106590611A (en) * | 2016-11-17 | 2017-04-26 | 新疆正通石油天然气股份有限公司 | Fracturing fluid of crosslinking association polymer and production method thereof |
| CN108690590A (en) * | 2017-04-06 | 2018-10-23 | 中国石油化工股份有限公司 | gas well foam discharging agent and its preparation method and application |
| CN107674668A (en) * | 2017-11-10 | 2018-02-09 | 河北中大永迪生物科技有限公司 | A kind of high temperature aqueous-based fracturing fluid of clean type |
| CN107794030A (en) * | 2017-11-27 | 2018-03-13 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of imitative recyclable clean fracturing fluid of peptide type |
| CN107794030B (en) * | 2017-11-27 | 2020-03-17 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Peptide-like recoverable clean fracturing fluid |
| CN108504346A (en) * | 2018-05-02 | 2018-09-07 | 四川大学 | A kind of antifreeze clean fracturing fluid and preparation method thereof |
| CN109111910A (en) * | 2018-08-15 | 2019-01-01 | 河北中大永迪生物科技有限公司 | A kind of clean type air foam fracturing fluid |
| CN109135713A (en) * | 2018-09-05 | 2019-01-04 | 安徽炎胜新材料科技有限公司 | A kind of clean fracturing fluid and preparation method thereof for high salinity recovered water |
| CN109517591A (en) * | 2018-11-15 | 2019-03-26 | 中国石油化工股份有限公司石油勘探开发研究院 | A kind of high temperature resistant, Low Damage clean fracturing fluid |
| CN109517591B (en) * | 2018-11-15 | 2021-02-02 | 中国石油化工股份有限公司石油勘探开发研究院 | High-temperature-resistant low-damage clean fracturing fluid |
| CN111073626A (en) * | 2019-12-30 | 2020-04-28 | 陕西省石油化工研究设计院 | Clean fracturing fluid for low-permeability, high-temperature-resistant and high-pressure-resistant reservoir and preparation method thereof |
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