CN110776901A - Environment-friendly drag reducer for fracturing and preparation method thereof - Google Patents
Environment-friendly drag reducer for fracturing and preparation method thereof Download PDFInfo
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 41
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims abstract description 26
- 239000004094 surface-active agent Substances 0.000 claims abstract description 23
- 150000007942 carboxylates Chemical class 0.000 claims abstract description 22
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 22
- 229940051841 polyoxyethylene ether Drugs 0.000 claims abstract description 22
- 229920000056 polyoxyethylene ether Polymers 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- -1 polyoxyethylene Polymers 0.000 claims abstract description 17
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims abstract description 13
- 239000003112 inhibitor Substances 0.000 claims abstract description 13
- 239000011347 resin Substances 0.000 claims abstract description 13
- 229920005989 resin Polymers 0.000 claims abstract description 13
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims abstract description 11
- 238000006243 chemical reaction Methods 0.000 claims description 22
- 238000003756 stirring Methods 0.000 claims description 18
- 150000008052 alkyl sulfonates Chemical class 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 8
- 150000003512 tertiary amines Chemical class 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 6
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 claims description 5
- 125000003438 dodecyl group Chemical group [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])* 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 5
- 125000000913 palmityl 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])[H] 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- CFSCETSZQVECLC-UHFFFAOYSA-M trimethyl(1-phenyltridecyl)azanium;chloride Chemical compound [Cl-].CCCCCCCCCCCCC([N+](C)(C)C)C1=CC=CC=C1 CFSCETSZQVECLC-UHFFFAOYSA-M 0.000 claims description 5
- 125000000217 alkyl group Chemical group 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- GEGGDDNVHQPTCS-QXMHVHEDSA-N 2-[3-[[(z)-docos-13-enoyl]amino]propyl-dimethylazaniumyl]acetate Chemical compound CCCCCCCC\C=C/CCCCCCCCCCCC(=O)NCCC[N+](C)(C)CC([O-])=O GEGGDDNVHQPTCS-QXMHVHEDSA-N 0.000 claims description 3
- IXOCGRPBILEGOX-UHFFFAOYSA-N 3-[3-(dodecanoylamino)propyl-dimethylazaniumyl]-2-hydroxypropane-1-sulfonate Chemical compound CCCCCCCCCCCC(=O)NCCC[N+](C)(C)CC(O)CS([O-])(=O)=O IXOCGRPBILEGOX-UHFFFAOYSA-N 0.000 claims description 3
- 230000004913 activation Effects 0.000 claims description 3
- 150000004820 halides Chemical class 0.000 claims description 3
- ONYHQNURMVNRJZ-QXMHVHEDSA-N 3-[3-[[(Z)-docos-13-enoyl]amino]propyl-dimethylazaniumyl]-2-hydroxypropane-1-sulfonate Chemical compound CCCCCCCC\C=C/CCCCCCCCCCCC(=O)NCCC[N+](C)(C)CC(O)CS([O-])(=O)=O ONYHQNURMVNRJZ-QXMHVHEDSA-N 0.000 claims description 2
- KWYHDKDOAIKMQN-UHFFFAOYSA-N N,N,N',N'-tetramethylethylenediamine Chemical class CN(C)CCN(C)C KWYHDKDOAIKMQN-UHFFFAOYSA-N 0.000 claims description 2
- 150000001335 aliphatic alkanes Chemical class 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- IQDGSYLLQPDQDV-UHFFFAOYSA-N dimethylazanium;chloride Chemical compound Cl.CNC IQDGSYLLQPDQDV-UHFFFAOYSA-N 0.000 claims description 2
- 239000000839 emulsion Substances 0.000 claims description 2
- 239000012467 final product Substances 0.000 claims description 2
- 125000005843 halogen group Chemical group 0.000 claims description 2
- 230000002209 hydrophobic effect Effects 0.000 claims description 2
- 230000002401 inhibitory effect Effects 0.000 claims description 2
- 238000005303 weighing Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 1
- 230000001954 sterilising effect Effects 0.000 abstract description 10
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 10
- 231100000252 nontoxic Toxicity 0.000 abstract description 2
- 230000003000 nontoxic effect Effects 0.000 abstract description 2
- 238000003860 storage Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 13
- 239000000047 product Substances 0.000 description 9
- 125000006539 C12 alkyl group Chemical group [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])* 0.000 description 4
- 230000003993 interaction Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 125000001309 chloro group Chemical group Cl* 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 150000002191 fatty alcohols Chemical group 0.000 description 3
- KWIUHFFTVRNATP-UHFFFAOYSA-N glycine betaine Chemical compound C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 description 3
- PSBDWGZCVUAZQS-UHFFFAOYSA-N (dimethylsulfonio)acetate Chemical compound C[S+](C)CC([O-])=O PSBDWGZCVUAZQS-UHFFFAOYSA-N 0.000 description 2
- UAUDZVJPLUQNMU-UHFFFAOYSA-N Erucasaeureamid Natural products CCCCCCCCC=CCCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- UAUDZVJPLUQNMU-KTKRTIGZSA-N erucamide Chemical group CCCCCCCC\C=C/CCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-KTKRTIGZSA-N 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 229940117986 sulfobetaine Drugs 0.000 description 2
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
- DSUKRMUYCNJZQQ-UHFFFAOYSA-N [Cl-].C(CCCCCCCCCCCCCCC)C([NH+](C)C)CCCCCCCCCCCCCCCC Chemical group [Cl-].C(CCCCCCCCCCCCCCC)C([NH+](C)C)CCCCCCCCCCCCCCCC DSUKRMUYCNJZQQ-UHFFFAOYSA-N 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- 229960003237 betaine Drugs 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- ROSDSFDQCJNGOL-UHFFFAOYSA-N protonated dimethyl amine Natural products CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/62—Compositions for forming crevices or fractures
- C09K8/66—Compositions based on water or polar solvents
- C09K8/68—Compositions based on water or polar solvents containing organic compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/602—Compositions for stimulating production by acting on the underground formation containing surfactants
- C09K8/604—Polymeric surfactants
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/84—Compositions based on water or polar solvents
- C09K8/86—Compositions based on water or polar solvents containing organic compounds
- C09K8/88—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
- C09K8/885—Compositions based on water or polar solvents containing organic compounds macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention relates to an environment-friendly drag reducer for fracturing and a preparation method thereof, wherein the environment-friendly drag reducer comprises the following components in parts by weight: 0.1-17 parts of gemini quaternary ammonium salt, 8-55 parts of fatty alcohol-polyoxyethylene ether, 0.4-0.7 part of polyoxyethylene resin, 1.4-50 parts of sulfonate, 1.4-5.0 parts of nonionic natural carboxylate surfactant, 0.2-2.5 parts of cloud point inhibitor, 0.5-2.4 parts of anion-cation phase transfer agent and 5-90 parts of water. The drag reducer is non-toxic and harmless to the environment and people, and conforms to the national environmental protection policy; the environment-friendly drag reducer has the advantages of ultralow surface interfacial tension, suitability for slickwater hydraulic fracturing, sterilization function, stability in storage, convenience in use and the like.
Description
Technical Field
The invention relates to the field of oilfield chemical application, in particular to a composition of an environment-friendly drag reducer for fracturing, which has good biodegradability and ultralow surface interfacial tension, is suitable for slickwater hydraulic fracturing and is supplemented with a sterilization function, and a preparation method thereof.
Background
The quality of oil and gas resources is gradually reduced, the exploration and development strength of low-permeability oil reservoirs, compact oil, shale gas and coal bed gas is continuously increased, and fracturing is an effective means for opening oil and gas channels and is a conventional measure for increasing the yield of the low-permeability oil reservoirs. The slickwater fracturing can improve the probability of forming the cutting seam, is beneficial to forming the reticular seam, greatly improves the volume of the seam and the effect after fracturing, has low cost, can save 40 to 60 percent of cost in the same-scale operation of slickwater fracturing and conventional gel fracturing, and the resistance reducing agent becomes an important component of the volume fracturing.
Slickwater fracturing fluids have become a research hotspot as in the invention patent with application number 201310712341.7, and the applicant: zhengzhou san shan oil technology ltd, inventor: wangyongzheng Zhao Jun Yongsun hong Wei Zhi Peng and the like, which discloses a resistance-reducing agent for fracturing shale gas slickwater and a preparation method thereof. Patent application No. 201010526794.7, applicant: beijing Hongyao Enze energy technology Limited company, inventor: tang Ru zhong, Zhangzhou, Mi Qiangbo, Gunn Yundi, Zhao wenna, it discloses a resistance-reducing agent for fracturing fluid and its preparation method. However, the main components of the above patents are mainly acrylamide, which is toxic and has a great risk at present, and the surface interfacial tension of the resistance reducing agent of the above patents is not ideal. Therefore, further improvements are necessary over the prior art.
Disclosure of Invention
The invention aims to provide an environment-friendly drag reducer for fracturing and a preparation method thereof, so as to solve the defects.
The purpose of the invention is realized by the following technical scheme.
The environment-friendly drag reducer for fracturing comprises the following components in parts by weight: 0.1-17 parts of gemini quaternary ammonium salt, 8-55 parts of fatty alcohol-polyoxyethylene ether, 0.4-0.7 part of polyoxyethylene resin, 1.4-50 parts of sulfonate, 1.4-5.0 parts of carboxylate surfactant, 0.2-2.5 parts of cloud point inhibitor, 0.5-2.4 parts of anion-cation phase transfer agent and 5-90 parts of water.
The cloud point inhibitor comprises one or more of erucamidopropyl betaine, cocamidopropyl hydroxysultaine and erucamidopropyl hydroxysultaine.
Further, the gemini quaternary ammonium salt is
Wherein R is dodecyl, R1 is methyl, R2 is hexadecyl, and X is halogen atom.
Further, the gemini quaternary ammonium salt is obtained by reacting two tertiary amines or derivatives thereof with a double halide, wherein the two tertiary amines or derivatives thereof are two same or different tertiary amine compounds or one compound containing two tertiary amine groups.
Further, the fatty alcohol-polyoxyethylene ether is represented by the general formula
Wherein n is a positive integer from 6 to 20.
Further, the water accounts for 35-65% of the total mass of the environment-friendly drag reducer.
Further, the fatty alcohol-polyoxyethylene ether: RO (CH)
2CH
2O)
nThe molecular weight of H is one or more of 80, 200 and 400 ten thousand.
Further, the sulfonate has the structural formula: RO (CH)
2CH
2O)
nSO
3Na, where R ═ C12-15 alkyl or C12-14 alkyl, and n ═ 2-3.
Further, the anion-cation phase transfer agent comprises dodecyl trimethyl benzyl ammonium chloride and/or bis 16 dimethyl ammonium chloride.
The carboxylate surfactant is a non-ionic carboxylate surfactant.
A preparation method of an environment-friendly drag reducer for fracturing comprises the following steps:
step 1: weighing each component in the environment-friendly drag reducer according to a proportion, adding water, gemini quaternary ammonium salt and fatty alcohol-polyoxyethylene ether into a reaction kettle, starting stirring at the rotating speed of 85-135 r/min, and starting heating;
step 2: when the temperature in the step 1 is raised to 50-75 ℃, adding polyoxyethylene resin, alkyl sulfonate and carboxylate surfactant into the reaction kettle, and then stirring for 1-6 hours at a constant temperature of 50-75 ℃;
and step 3: and continuously adding the cloud point inhibiting and anion-cation phase transfer agent, and continuously stirring for 2 hours to obtain the liquid of the emulsion, namely the final product, namely the environment-friendly drag reducer.
Further, in step 1, the gemini quaternary ammonium salt is any one of the following three types:
(1) designing a suitable linker and then bonding the two amphiphiles together at the head group, which process comprises the reaction of two tertiary amines or derivatives thereof with a double halide;
(2) selecting a molecular structure connected with two hydrophilic groups as a raw material, and introducing two hydrophobic chains, wherein the process comprises the reaction of long-chain halogenated alkane and tetramethyl ethylenediamine;
(3) the carboxylate surfactant is used as a raw material, and is subjected to activation reaction or reaction with a connecting agent after a chemical reaction active group is introduced.
The invention has the beneficial effects that:
(1) the environment-friendly drag reducer for fracturing does not contain polyacrylamide, is non-toxic, non-flammable and non-explosive, is harmless to the environment and people, and accords with the national environment protection policy;
(2) the environment-friendly drag reducer for fracturing has ultralow surface interfacial tension, is suitable for slickwater hydraulic fracturing, is assisted by a sterilization function, and has high drag reduction rate; stable storage, convenient use and the like.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The detailed description of the embodiments of the present invention provided below is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The environment-friendly drag reducer for fracturing comprises the following components in percentage by mass:
gemini quaternary ammonium salt 10%
15 percent of fatty alcohol-polyoxyethylene ether
0.5 percent of polyoxyethylene resin
Alkyl sulfonate 15%
Nonionic carboxylate surfactant 3%
Cloud Point inhibitor 1%
1 percent of anion-cation phase transfer agent
The balance of water.
Wherein the gemini quaternary ammonium salt is
Wherein R is dodecyl, R1 is methyl, R2 is hexadecyl, and X is chlorine atom; fatty alcohol polyoxyethylene ether RO (CH)
2CH
2O)
nH molecular weight 200 ten thousand, alkylsulfonate RO (CH)
2CH
2O)
nSO
3Na (R is C12 alkyl, n is 2), the carboxylate surfactant is a nonionic natural carboxylate surfactant, the cloud point inhibitor is erucamidopropyl betaine, and the anion-cation phase transfer agent is dodecyl trimethyl benzyl ammonium chloride.
The preparation method of the environment-friendly drag reducer for fracturing comprises the following steps: adding 545Kg of water into a reaction kettle, adding 100Kg of water, a gemini quaternary ammonium salt surfactant and 150Kg of fatty alcohol-polyoxyethylene ether, starting stirring at the rotation speed of 85-135 r/min, heating to 50-75 ℃, adding 5Kg of polyoxyethylene resin, 150Kg of sulfonate and 30Kg of nonionic natural carboxylate, stirring at the constant temperature of 75 ℃ for 4 hours, and continuously adding 10Kg of cloud point inhibitor; 10Kg of anion-cation phase transfer agent; stirring is continued for 2 hours to obtain the product.
When the using concentration of the product is 2 per mill, the resistance reducing rate is 72.3 percent; the surface tension is 23.4 mN/m; interfacial tension 4.2X 10-3; the sterilization rate is 99 percent.
Example 2
The environment-friendly drag reducer for fracturing comprises the following components in percentage by mass:
gemini quaternary ammonium salt 10%
10 percent of fatty alcohol-polyoxyethylene ether
0.5 percent of polyoxyethylene resin
Alkyl sulfonate 10%
Nonionic carboxylate surfactant 3%
Cloud Point inhibitor 1%
1 percent of anion-cation phase transfer agent
The balance of water.
Wherein the gemini quaternary ammonium salt is
Wherein R is dodecyl, R1 is methyl, R2 is hexadecyl, and X is chlorine atom;
molecular weight of fatty alcohol polyoxyethylene ether 200 ten thousand, alkyl sulfonate RO (CH)
2CH
2O)
nSO
3In Na, R is C12 alkyl, n is 2, the cloud point inhibitor is cocamidopropyl hydroxysultaine, and the anion-cation phase transfer agent is dodecyl trimethyl benzyl ammonium chloride.
The preparation method of the environment-friendly drag reducer for fracturing comprises the following steps: adding 645Kg of water into a reaction kettle, then adding 100Kg of gemini quaternary ammonium salt surfactant and 100Kg of fatty alcohol-polyoxyethylene ether, starting stirring at the rotation speed of 85-135 r/min, heating to 50-75 ℃, adding 5Kg of polyoxyethylene resin, 100Kg of alkyl sulfonate and 30Kg of nonionic natural carboxylate surfactant, stirring at the constant temperature of 75 ℃ for 4 hours, and then continuously adding 10Kg of cloud point inhibitor; 10Kg of anion-cation phase transfer agent; stirring is continued for 2 hours to obtain the product.
When the using concentration of the product is 2 per mill, the resistance reducing rate is 73.5 percent; the surface tension is 22.7 mN/m; interfacial tension 3.3X 10-3; the sterilization rate is 99 percent.
Example 3
The environment-friendly drag reducer for fracturing comprises the following components in percentage by mass:
gemini quaternary ammonium salt 10%
15 percent of fatty alcohol-polyoxyethylene ether
0.5 percent of polyoxyethylene resin
Sulfonate 15%
Nonionic carboxylate surfactant 3%
Cloud Point inhibitor 1%
1 percent of anion-cation phase transfer agent
The balance of water.
Wherein the gemini quaternary ammonium salt is
Wherein R is dodecyl, R1 is methyl, R2 is hexadecyl, and X is chlorine atom;
the molecular weight of the fatty alcohol-polyoxyethylene ether is 400 ten thousand, and the sulfonate RO (CH)
2CH
2O)
nSO
3Na, wherein R is C12 alkyl, n is 2, the cloud point inhibitor is erucamide propyl hydroxy sulfobetaine, and the anion-cation phase transfer agent is dodecyl trimethyl benzyl ammonium chloride.
The preparation method of the environment-friendly drag reducer for fracturing comprises the following steps: adding 545Kg of water into a reaction kettle, adding 100Kg of water, a gemini quaternary ammonium salt surfactant and 150Kg of fatty alcohol-polyoxyethylene ether, starting stirring at the rotation speed of 85-135 r/min, heating to 50-75 ℃, adding 5Kg of polyoxyethylene resin, 150Kg of sulfonate and 30Kg of nonionic natural carboxylate, stirring at the constant temperature of 75 ℃ for 4 hours, and continuously adding 10Kg of cloud point inhibitor; 10Kg of anion-cation phase transfer agent; stirring for 2 hours to obtain clear and transparent liquid, namely the product.
When the using concentration of the product is 2 per mill, the resistance reducing rate is 73.5 percent; the surface tension is 22.7 mN/m; interfacial tension 3.3X 10
-3(ii) a The sterilization rate is 99 percent.
Example 4
The environment-friendly drag reducer for fracturing comprises the following components in percentage by mass:
gemini quaternary ammonium salt 10%
20 percent of fatty alcohol-polyoxyethylene ether
0.5 percent of polyoxyethylene resin
Sulfonate 20%
Nonionic natural carboxylate 3%
Cloud Point inhibitor 1%
1 percent of anion-cation phase transfer agent
The balance of water.
Wherein the molecular weight of the gemini quaternary ammonium salt is 8 ten thousand; the gemini quaternary ammonium salt is prepared by taking a surfactant as a raw material, and reacting with a connecting agent after an activation reaction or introduction of a chemical reaction active group.
Fatty alcohol polyoxyethylene ether has molecular weight of 400 ten thousand, and alkyl sulfonate RO (CH)
2CH
2O)nSO
3Na, wherein R is C12 alkyl, n is 2, the cloud point inhibitor is erucamide propyl hydroxy sulfobetaine, and the anion-cation phase transfer agent is dicetyl trimethyl ammonium chloride.
The preparation method of the environment-friendly drag reducer for fracturing comprises the following steps: firstly adding 445 Kg of water into a reaction kettle, firstly adding 100Kg of water, 100Kg of gemini quaternary ammonium salt surfactant and 200Kg of fatty alcohol-polyoxyethylene ether, starting stirring at the rotation speed of 85-135 r/min, heating to 50-75 ℃, adding 5Kg of polyoxyethylene resin, 200Kg of sulfonate and 30Kg of nonionic natural carboxylate, stirring at the constant temperature of 75 ℃ for 4 hours, and continuously adding 10Kg of cloud point inhibitor; 10Kg of anion-cation phase transfer agent; stirring for 2 hours to obtain clear and transparent liquid, namely the product.
When the using concentration of the product is 2 per mill, the resistance reducing rate is 74.7 percent; the surface tension is 22.1 mN/m; interfacial tension 2.7X 10
-3(ii) a The sterilization rate is 99 percent.
Comparative example 1
The gemini quaternary ammonium salt in the example 1 is changed into the common quaternary ammonium salt dioctadecyl dimethyl ammonium chloride, the general formula of which is shown as follows, and the rest is consistent with the example.
Comparative example 2
The fatty alcohol-polyoxyethylene ether in example 1 was removed, and the rest was completely the same as example 1.
Comparative example 3
The cloud point depressant in example 1 was changed to betaine (cas No. 107-43-7), and the rest was identical to example 1.
Comparative example 4
The nonionic natural carboxylate surfactant of example 1 was deleted and the remainder was identical to example 1.
Comparative example 5
The preparation method in example 1 was changed to: all the substances are added into a reaction kettle at the same time and stirred for 2 to 10 hours at the temperature of between 50 and 75 ℃.
Comparative example 6
The resistance reduction rate, surface tension, interfacial tension and sterilization rate in examples 1 to 4 and comparative examples 1 to 5 were measured, and the results are shown below.
| Resistance reduction rate | Surface tension | Interfacial tension | Rate of sterilization | |
| Example 1 | 72.3％ | 22.1mN/m | 2.7×10 -3mN/m | 99％ |
| Example 2 | 73.5％ | 22.7mN/m | 3.3×10 -3mN/m | 99％ |
| Example 3 | 73.5％ | 22.7mN/m | 3.3×10 -3mN/m | 99％ |
| Example 4 | 74.7％ | 22.1mN/m | 2.7×10 -3mN/m | 99％ |
| Comparative example 1 | 53.5％ | 53.5mN/m | 9.5×10 -2mN/m | 68％ |
| Comparative example 2 | 59.4％ | 58.7mN/m | 4.3×10 -1mN/m | 72％ |
| Comparative example 3 | 60.5％ | 46.9mN/m | 1.8×10 -1mN/m | 81％ |
| Comparative example 4 | 58.8％ | 38.5mN/m | 4.3×10 -1mN/m | 76％ |
| Comparative example 5 | 66.8％ | 28.5mN/m | 3.3×10 -2mN/m | 86％ |
The comparison shows that the effects of the comparative examples 1 to 4 are obviously lower than the data in the examples, and the inventor finds that the components in the formula of the invention have obvious interaction through years of research, and the final resistance reduction rate is high, the surface tension and the interfacial tension are ultralow, and the sterilization rate is high and stable through the interaction. And the main components in the formula are deleted or changed, so that the interaction relationship among the substances is broken, and the realization of the effect is greatly influenced. In addition, the sequence of addition and reaction conditions during the preparation process have obvious influence on the interaction between the substances.
The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by anyone in the light of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as those of the present application, fall within the protection scope of the present invention.
Claims (10)
1. The environment-friendly drag reducer for fracturing is characterized by comprising the following components in parts by weight: 0.1-17 parts of gemini quaternary ammonium salt, 8-55 parts of fatty alcohol-polyoxyethylene ether, 0.4-0.7 part of polyoxyethylene resin, 1.4-50 parts of sulfonate, 1.4-5.0 parts of carboxylate surfactant, 0.2-2.5 parts of cloud point inhibitor, 0.5-2.4 parts of anion-cation phase transfer agent and 5-90 parts of water.
The cloud point inhibitor comprises one or more of erucamidopropyl betaine, cocamidopropyl hydroxysultaine and erucamidopropyl hydroxysultaine.
2. The environmentally friendly drag reducer for fracturing of claim 1, wherein said gemini quaternary ammonium salt is
Wherein R is dodecyl, R1 is methyl, R2 is hexadecyl, and X is halogen atom.
3. The environmentally friendly drag reducer for fracturing of claim 2, wherein the gemini quaternary ammonium salt is obtained by reacting two tertiary amines or derivatives thereof with a dihalide, wherein the two tertiary amines or derivatives thereof are two same or different tertiary amine compounds or one compound containing two tertiary amine groups.
4. The environment-friendly drag reducer for fracturing as claimed in claim 3, wherein said fatty alcohol-polyoxyethylene ether is of the general formula
Wherein n is a positive integer from 6 to 20.
5. The environmentally friendly drag reducer for fracturing of claim 4, wherein the water comprises 35-65% of the total mass of the environmentally friendly drag reducer.
6. The environmentally friendly drag reducer for fracturing of claim 5, wherein the fatty alcohol-polyoxyethylene ether has a molecular weight of one or more of 80, 200 and 400 ten thousand.
7. The environmentally friendly drag reducer for fracturing of claim 6, wherein said drag reducer is a solid-liquid, or a liquid, and wherein said solid-liquid is a liquid, a solid, or a liquidThe structural formula of the sulfonate is: RO (CH)
2CH
2O)nSO
3Na, where R ═ C12-15 alkyl or C12-14 alkyl, and n ═ 2-3.
8. The environmentally friendly drag reducer for fracturing of claim 7, wherein the anion-cation phase transfer agent comprises dodecyl trimethyl benzyl ammonium chloride and/or bis 16 dimethyl ammonium chloride;
the carboxylate surfactant is a non-ionic carboxylate surfactant.
9. A preparation method of an environment-friendly drag reducer for fracturing is characterized by comprising the following steps: the preparation method comprises the following steps:
step 1: weighing each component in the environment-friendly drag reducer according to a proportion, adding water, gemini quaternary ammonium salt and fatty alcohol-polyoxyethylene ether into a reaction kettle, starting stirring at the rotating speed of 85-135 r/min, and starting heating;
step 2: when the temperature in the step 1 is raised to 50-75 ℃, adding polyoxyethylene resin, alkyl sulfonate and carboxylate surfactant into the reaction kettle, and then stirring for 1-6 hours at a constant temperature of 50-75 ℃;
and step 3: and continuously adding the cloud point inhibiting and anion-cation phase transfer agent, and continuously stirring for 2 hours to obtain the liquid of the emulsion, namely the final product, namely the environment-friendly drag reducer.
10. The method for preparing the environmentally friendly drag reducer for fracturing as recited in claim 1, wherein in step 1, the gemini quaternary ammonium salt is any one of the following three:
(1) designing a suitable linker and then bonding the two amphiphiles together at the head group, which process comprises the reaction of two tertiary amines or derivatives thereof with a double halide;
(2) selecting a molecular structure connected with two hydrophilic groups as a raw material, and introducing two hydrophobic chains, wherein the process comprises the reaction of long-chain halogenated alkane and tetramethyl ethylenediamine;
(3) the carboxylate surfactant is used as a raw material, and is subjected to activation reaction or reaction with a connecting agent after a chemical reaction active group is introduced.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111808598A (en) * | 2020-08-26 | 2020-10-23 | 肯特催化材料股份有限公司 | Clay anti-swelling agent |
| CN113088273A (en) * | 2021-04-07 | 2021-07-09 | 北京首科油源科技有限公司 | Preparation method of nano microcapsule fracturing fluid and fracturing fluid performance evaluation method |
| CN115521412A (en) * | 2022-07-28 | 2022-12-27 | 浙江神耀石化科技有限公司 | A kind of preparation method of drag reducing agent for fracturing |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080255009A1 (en) * | 2005-11-07 | 2008-10-16 | Paul Knox | Polycationic viscoelastic compositions |
| CN104277818A (en) * | 2013-07-09 | 2015-01-14 | 中国石油化工股份有限公司 | Drag reducer for fracturing fluid and application thereof |
| CN104277819A (en) * | 2013-07-09 | 2015-01-14 | 中国石油化工股份有限公司 | Drag reducer for fracturing fluid for shale gas reservoirs and preparation method thereof |
| CN104559999A (en) * | 2013-10-28 | 2015-04-29 | 中国石油化工股份有限公司 | Fracturing fluid resistance reducing agent and application thereof |
| CN104560000A (en) * | 2013-10-28 | 2015-04-29 | 中国石油化工股份有限公司 | Fracturing fluid drag reducer composition |
| RU2014107753A (en) * | 2011-07-29 | 2015-09-10 | Бэйкер Хьюз Инкорпорейтед | METHOD FOR HYDRAULIC RIPPING WITH AN AQUEOUS POLYMER AQUEOUS SOLUTION |
-
2019
- 2019-03-07 CN CN201910170591.XA patent/CN110776901A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080255009A1 (en) * | 2005-11-07 | 2008-10-16 | Paul Knox | Polycationic viscoelastic compositions |
| RU2014107753A (en) * | 2011-07-29 | 2015-09-10 | Бэйкер Хьюз Инкорпорейтед | METHOD FOR HYDRAULIC RIPPING WITH AN AQUEOUS POLYMER AQUEOUS SOLUTION |
| CN104277818A (en) * | 2013-07-09 | 2015-01-14 | 中国石油化工股份有限公司 | Drag reducer for fracturing fluid and application thereof |
| CN104277819A (en) * | 2013-07-09 | 2015-01-14 | 中国石油化工股份有限公司 | Drag reducer for fracturing fluid for shale gas reservoirs and preparation method thereof |
| CN104559999A (en) * | 2013-10-28 | 2015-04-29 | 中国石油化工股份有限公司 | Fracturing fluid resistance reducing agent and application thereof |
| CN104560000A (en) * | 2013-10-28 | 2015-04-29 | 中国石油化工股份有限公司 | Fracturing fluid drag reducer composition |
Non-Patent Citations (1)
| Title |
|---|
| 李春颖等: "新型优质抗盐降阻剂的研制及评价", 《当代化工》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111808598A (en) * | 2020-08-26 | 2020-10-23 | 肯特催化材料股份有限公司 | Clay anti-swelling agent |
| CN111808598B (en) * | 2020-08-26 | 2022-05-20 | 肯特催化材料股份有限公司 | Clay anti-swelling agent |
| CN113088273A (en) * | 2021-04-07 | 2021-07-09 | 北京首科油源科技有限公司 | Preparation method of nano microcapsule fracturing fluid and fracturing fluid performance evaluation method |
| CN115521412A (en) * | 2022-07-28 | 2022-12-27 | 浙江神耀石化科技有限公司 | A kind of preparation method of drag reducing agent for fracturing |
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