CN102559166A - Amphoteric surfactant fracturing fluid and preparation method thereof - Google Patents
Amphoteric 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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- Prior art keywords
- amphoterics
- fracturing liquid
- fracturing
- amphoteric surfactant
- inorganic salt
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- Granted
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- 239000012530 fluid Substances 0.000 title claims abstract description 17
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 239000002280 amphoteric surfactant Substances 0.000 title abstract 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000003756 stirring Methods 0.000 claims abstract description 14
- 239000004927 clay Substances 0.000 claims abstract description 12
- 239000003381 stabilizer Substances 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910017053 inorganic salt Inorganic materials 0.000 claims abstract description 9
- 239000000725 suspension Substances 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims description 39
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 24
- KWIUHFFTVRNATP-UHFFFAOYSA-N Betaine Natural products C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 claims description 12
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 12
- DPDMMXDBJGCCQC-UHFFFAOYSA-N [Na].[Cl] Chemical compound [Na].[Cl] DPDMMXDBJGCCQC-UHFFFAOYSA-N 0.000 claims description 10
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 8
- 229960003237 betaine Drugs 0.000 claims description 8
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical group COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 6
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical group [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 6
- MORMPWNLQJTSOT-UHFFFAOYSA-L disodium;4-dodecyl-2-(4-sulfonatophenoxy)benzenesulfonate Chemical compound [Na+].[Na+].CCCCCCCCCCCCC1=CC=C(S([O-])(=O)=O)C(OC=2C=CC(=CC=2)S([O-])(=O)=O)=C1 MORMPWNLQJTSOT-UHFFFAOYSA-L 0.000 claims description 6
- 235000019253 formic acid Nutrition 0.000 claims description 6
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 6
- 150000001412 amines Chemical class 0.000 claims description 4
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 claims description 4
- UAUDZVJPLUQNMU-KTKRTIGZSA-N erucamide Chemical compound CCCCCCCC\C=C/CCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-KTKRTIGZSA-N 0.000 claims description 4
- -1 octadecyl betaine Chemical compound 0.000 claims description 4
- 229960003742 phenol Drugs 0.000 claims description 4
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 239000003945 anionic surfactant Substances 0.000 abstract 2
- 239000003292 glue Substances 0.000 description 6
- 241000237502 Ostreidae Species 0.000 description 4
- 238000013019 agitation Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 235000020636 oyster Nutrition 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 238000010008 shearing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000638 stimulation Effects 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
Landscapes
- Detergent Compositions (AREA)
Abstract
The invention relates to an amphoteric surfactant fracturing fluid and a preparation method thereof, wherein the amphoteric surfactant fracturing fluid comprises 3-5% of amphoteric surfactant, 0.5-1% of anionic surfactant, 2-4% of inorganic salt, 0.3-0.5% of low molecular alcohol, 0-5% of pH value regulator, 0.5% of clay stabilizer and the balance of water by mass percent; firstly, adding an amphoteric surfactant, an anionic surfactant, low molecular alcohol, a pH value regulator and a clay stabilizer into water, stirring for 5-10min to obtain uniform and stable suspension, adding an inorganic salt, and stirring for 1-2min to obtain a fluid with good viscoelasticity; the amphoteric surfactant fracturing fluid is used for oil-gas field fracturing at the formation temperature of 60-80 ℃, has no residues after gel breaking, and does not damage the formation.
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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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 | Viscoelastic 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 |
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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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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 |
CN103865511A (en) * | 2012-12-11 | 2014-06-18 | 中国石油天然气股份有限公司 | Viscoelastic 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 | viscoelastic surfactant fracturing fluid and preparation method and application thereof |
US9856413B2 (en) | 2012-12-11 | 2018-01-02 | Petrochina Company Limited | Viscoelastic surfactant having multiple hydrophobic and hydrophilic groups as fracturing fluids |
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 |
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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 |
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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 |
CN116655488A (en) * | 2023-05-31 | 2023-08-29 | 西安石油大学 | Preparation method of small-molecule recyclable self-cleaning fracturing fluid surfactant |
CN116655488B (en) * | 2023-05-31 | 2024-06-04 | 西安石油大学 | Preparation method of small-molecule recyclable self-cleaning fracturing fluid surfactant |
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