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CN104277814B - Surfactant oil displacement composition, preparation method and application - Google Patents

Surfactant oil displacement composition, preparation method and application Download PDF

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Publication number
CN104277814B
CN104277814B CN201310286400.9A CN201310286400A CN104277814B CN 104277814 B CN104277814 B CN 104277814B CN 201310286400 A CN201310286400 A CN 201310286400A CN 104277814 B CN104277814 B CN 104277814B
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surfactant
oil
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mol ratio
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CN104277814A (en
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李应成
顾松园
沈之芹
何秀娟
杨青
杨一青
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China Petroleum and Chemical Corp
Sinopec Shanghai Research Institute of Petrochemical Technology
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China Petroleum and Chemical Corp
Sinopec Shanghai Research Institute of Petrochemical Technology
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Abstract

The present invention relates to surfactant oil displacement composition, preparation method and application, mainly solve surfactant oil displacement efficiency during tertiary oil recovery poor, simultaneously because oil displacement system contains inorganic base, the problem of injury, etching apparatus and pipeline and difficult demulsification are brought to stratum and oil well.The present invention is by using surfactant oil displacement composition, including cationic surfactant and anion nonionic surfactant, the mol ratio of described cationic surfactant and anion nonionic surfactant is 1: 0.01~1: 100, its cationic surfactant is selected from least one of quaternary ammonium salt or quaternary amine alkali, anion nonionic surfactant general molecular formula is as follows, wherein M is the technical scheme of any one in alkali metal, alkaline-earth metal, ammonium root, the problem is preferably solved, during tertiary oil production in oil field:Or

Description

Surfactant oil displacement composition, preparation method and application
Technical field
The present invention relates to surfactant oil displacement composition, preparation method and its application in the displacement of reservoir oil of oil field.
Background technology
With the increase of world energy sources demand, the rational exploitation and utilization of oil has caused the very big attention of people, to oil Yield and production efficiency requirement also more and more higher.The high-efficiency mining of petroleum resources is realized, for improving crude output not Only there is realistic meaning, with more important strategic importance.Conventional oil production method(Primary and secondary method)Normally only produce former The 1/3 of oily oil in place, the crude oil that there is also about 2/3 fails extraction, therefore in the case where energy day is becoming tight, improves tar productivity The key subjects that oil exploitation is studied are turned into.Tertiary oil recovery technology is then a kind of effective method for improving tar productivity, can be divided For four major classes:One is that heating power drives, including steam drive, combustion in situ etc.;Two be that mixed phase drives, including CO2Mixed phase, hydrocarbon mixed phase and other Inert gas mixed phase drives;Three be chemical flooding;Four be microbe oil production, including biopolymer, MICROBIAL SURFACTANT are driven.Change Learn that to drive be technology that is extremely important in intensified oil reduction and implementing on a large scale, including polymer flooding, surfactant flooding, caustic waterflooding etc. And the multiple combinations technology of polymer, alkali, surfactant.The effect of chemical flooding is physical action and the knot of chemical action Really, physical action refers to the effect that involves of displacing fluid, and chemical action refers to the microcosmic oil drive effect of displacing fluid.Chemical action Core is to reduce the interfacial tension of displacing fluid and crude oil.Surfactant is due to having oleophylic concurrently(It is hydrophobic)With it is hydrophilic(Oleophobic)Property Matter, when surfactant is dissolved in water, molecule is mainly distributed on oil-water interfaces, can significantly reduce oil water interfacial tension.Oil The reduction of water interfacial tension means that surfactant system can overcome the cohesive force between crude oil, and larger oil droplet is dispersed into small oil Drop, so as to improve percent of pass when crude oil flows through pore throat.The oil displacement efficiency of surfactant, which is also manifested by, makes the rock table of oleophylic Face wettability reversal, emulsification of crude oil, the raising effect such as surface charge density and oil droplet coalescence, this is surfactant in chemical flooding The reason for playing very important in technology.
Current surface active agent for tertiary oil recovery uses Recompounded multielement system mostly, while including non-ionic surfactant The auxiliary agents such as alkali and alcohol are additionally added in agent and ionic surfactant, part formulation.As patent CN101024764A provides one The surfactant of oil-field thick-oil well is planted, the activating agent is by water, piece alkali, ethanol, oleic acid, APES, ten Dialkyl benzene sulfonic acids sodium is constituted.For another example patent CN1458219A discloses a kind of surfactant polymer of tertiary oil recovery application Pure binary ultralow interfacial tension combination flooding formula, wherein the surfactant used be petroleum sulfonate or using petroleum sulfonate as Host adds the complexed surfactant of diluent and other surfactant compounds, and the percentage by weight of its component is mahogany acid Salt 50~100%, alkylsulfonate 0~50%, carboxylate 0~50%, alkylaryl sulfonates 0~35%, low-carbon alcohols 0~20%.Again Such as patent CN1394935 has invented a kind of chemical oil displacement agent, and it mainly includes sodium octylbenzene sulfonate anion surfactant, table Face activity agent aid, surfactant synergist, surface active agent solubilization agent.This oil displacement agent can significantly reduce the knot of viscous crude Structure viscosity, while oil water interfacial tension can be reduced, so as to improve oil recovery factor.
However, above-mentioned surface active agent for tertiary oil recovery still suffers from more problem, mainly surfactant activity is poor, drive Oily efficiency is low, simultaneously because surfactant system is excessively complicated, thus Produced Liquid demulsification is difficult, and sewage disposal difficulty is big;Separately It is outer that injury is brought to stratum and oil well because oil displacement system contains inorganic base, the problems such as causing etching apparatus and pipeline, and due to Inorganic base can seriously reduce the viscosity of polymer, have to greatly improve the concentration of polymer for the viscosity needed for reaching, make Oil recovery integrated cost is improved;The high temperature resistance of surfactant, high salt tolerance, anti-high salinity it is limited in one's ability.
It is well known that anion surfactant, such as petroleum sulfonate, petroleum carboxylate, alkylbenzenesulfonate are at present It is widely used in during tertiary oil recovery, and cationic surfactant easily adsorbs or produced precipitation because of it by stratum, therefore drop The ability of low oil water interfacial tension, is generally not used for tertiary oil recovery.Because cationic and anionic surfactant is mixed close to equal proportion Its aqueous solution easily forms precipitation during conjunction, matches somebody with somebody so as to cause cationic and anionic surfactant mixed system not only to turn into the application 5 taboos, and correlation theory research is also more delayed.Research discovery in recent years, cationic and anionic surfactant mixed system The aqueous solution has many anomalous properties, such as because cationic and anionic surfactant has strong electrostatic interaction in aqueous Interaction between hydrophobic carbon chain, promotes two kinds with the interionic association of different charged surfactants, in the solution Micella is readily formed, the surface-active higher than single surfactant is produced.In addition, cationic and anionic surfactant is mixed System can obviously reduce absorption loss of the cationic surfactant on rock core, so as to significantly reduce cation surface activating The inherent shortcoming of agent.
Gong Yujun etc.(See 2 months 2000 the 1st phase Northwest University's journals (natural science edition) of volume 30,28~31)Research Think cetyl trimethylammonium bromide(CTAB)With lauryl sodium sulfate(SDS)Mixed system has solubilization.In stone In oily recovery process, using solubilization can " displacement of reservoir oil ", will stick under the oil wash on the sandstone of rock stratum, adopted so as to improve oil Yield.Huang Hongdu etc.(See petroleum gas journal in August, 2007 volume 29 the 4th phase, 101~104)Have studied petroleum sulfonate, The anion surfactants such as petroleum carboxylate, alkylbenzenesulfonate and cetyl trimethylammonium bromide, alkali compound system Interfacial tension simultaneously draws to draw a conclusion:The addition of cationic surfactant makes petroleum carboxylate, alkylbenzenesulfonate, oil sulphur The interfacial activity of hydrochlorate is improved.
The studies above result shows anions and canons Surfactant Mixing Systems for reduction oil water interfacial tension, raising Oil displacement efficiency has certain effect.But the former result of study shows that its interface performance still has much room for improvement, and the latter is in system Alkali is still employed, so that alkali can not be avoided to bring injury to stratum and oil well, etching apparatus and pipeline and demulsification difficulty etc. are asked Topic.Other above-mentioned system is easier generation precipitation, is unfavorable for practical application.
Therefore, one aspect of the present invention, which absorbs, has used for reference forefathers on anions and canons Surfactants mixed system research knot Really, traditional anion surfactant is on the other hand replaced using Anionic-nonionic surfactant, overcomes yin, yang When ionic surface active agent is compounded easily the shortcomings of precipitate, invented for the displacement of reservoir oil cationic surfactant and it is cloudy from Son-non-ionic surfactant composition.
The content of the invention
One of technical problems to be solved by the invention are existing surfactant oil displacement efficiencies during tertiary oil recovery Difference, simultaneously because oil displacement system contains inorganic base, injury, etching apparatus and pipeline and the difficulty that is demulsified are brought to stratum and oil well Problem is there is provided a kind of new surfactant oil displacement composition, and said composition has that interfacial activity is high, washing oil ability is strong, body System is simple, will not bring injury to stratum and oil well, etching apparatus and pipeline and will not result in the advantage of demulsification difficulty.
The two of the technical problems to be solved by the invention are to provide a kind of surface corresponding with solving technical problem one and lived The preparation method of property agent composition.
The three of the technical problems to be solved by the invention are one of technical problem surfactant oil displacement compositions Application in the displacement of reservoir oil of oil field.
To solve one of above-mentioned technical problem, the technical solution adopted by the present invention is as follows:Surfactant oil displacement is combined Thing, including cationic surfactant and Anionic-nonionic surfactant, described cationic surfactant with it is cloudy from The mol ratio of son-nonionic surfactant is 1: 0.01~1: 100, and its cationic surfactant is selected from quaternary ammonium salt or season At least one of amine base, Anionic-nonionic surfactant molecule formula is:
Or
Wherein M is any one in alkali metal, alkaline-earth metal, ammonium root;R is H, C1~C20Alkyl, C6~C10Aryl Or any one in substituted aryl;R ' is C1~C10Alkylidene;M, n are any one integer in 1~10;X, y be 0~ Any one integer or decimal in 100, x, y are more preferably any one integer or decimal in 0~50;R is general molecular formula Middle M and SO3Group or M and COO groups mol ratio, r=1 when M is alkali metal or ammonium root, when M is alkaline-earth metal r= 0.5。
Preferable x in above-mentioned technical proposal>0.
Cationic surfactant described in above-mentioned technical proposal preferably is selected from tetra-alkyl ammonium chloride or tetra-alkyl ammonium hydroxide At least one of.Carbon number in the cationic surfactant molecule is preferably 4 ~ 40.The Anionic-nonionic Surfactant cationic M preferably is selected from Na, K, Mg, Ca or NH4In any one.R is preferably H, C5~C15Alkyl, virtue Base.R ' is preferably C1~C5Alkylidene.
The mol ratio of cationic surfactant described in above-mentioned technical proposal and Anionic-nonionic surfactant is excellent It is 1: 0.1~1: 10 to select scheme.
To solve the two of above-mentioned technical problem, the technical solution adopted by the present invention is as follows:One of above-mentioned technical problem correspondence Technical scheme described in surfactant oil displacement composition preparation method, comprise the following steps:
A) unrighted acid, acidic catalyst and aromatic hydrocarbon are added into reactor, in 50~150oC addition reactions 1~ 20 hours, wherein unrighted acid:Aromatic hydrocarbons mol ratio is 1:(0.5~1.0);After reaction terminates, in temperature 100 ~ 300oC, 10 ~ 100kg/cm of pressure2Hydrogenation reaction 1 ~ 10 hour, so that aryl acquirement carboxylic acid is reduced into aryl substituted alcohols;Aryl is taken Reactor is added for alcohol, base catalyst and required expoxy propane, oxirane, in 100~200oC carries out etherification reaction 1 ~20 hours;Then add sulfonated reagent or carboxylating reagent carries out sulfonation/carboxylation reaction, in 50~100oC reactions 1~20 are small When, wherein aryl replaces fatty alcohol polyoxypropylene APEO:The mol ratio of sulfonated reagent/carboxylating reagent is 1:(1~4); After reaction terminates, acidic aqueous solution is used(For example aqueous hydrochloric acid solution, aqueous sulfuric acid, phosphate aqueous solution, sodium bisulphate solution or Person's aqueous potassium hydrogen sulfate)Regulation carries out water-oil separating to pH=1 ~ 3, and oil phase adds alkali lye and is neutralized to pH=7 ~ 9, obtains aryl Replace fatty alcohol polyoxypropylene polyethenoxy ether sulphonate or aryl substitution fatty alcohol polyoxypropylene polyethenoxy ether carboxylate cloudy Ion-nonionic surfactant;
B) the Anionic-nonionic surfactant difference obtained by cationic surfactant and according to step a) is molten It is then well mixed according to mol ratio 1: 0.1~1: 10 in Xie Yushui.
In above-mentioned technical proposal, step a) the base catalyst preferred schemes are selected from least one of NaOH or KOH.
In above-mentioned technical proposal, hydrogenation reaction is reaction well known in the art, and it is anti-to promote generally to use hydrogenation catalyst Should, conventional hydrogenation catalyst has Pd/C catalyst, Pt/C catalyst, Raney's nickel catalyst etc..Pd/C or Pt/C catalyst is expensive Tenor is not the key of the present invention, and such as Pd or Pt contents can be 0.5~5wt%.The Pd or Pt used in embodiment contains Measure as 0.5wt%.
In order to solve the above-mentioned technical problem three, technical scheme is as follows:One of above-mentioned technical problem is corresponding Application of the surfactant oil displacement composition in the displacement of reservoir oil of oil field described in any one technical scheme.
The surfactant oil displacement composition of the present invention is on the one hand due to anions and canons surfactant opposite charges pole Property base between strong electrostatic attraction effect so that surfactant molecule increases in adsorbed on interfaces amount, critical micelle concentration Significantly reduce, so that with the incomparable high surface of single surfactant;Simultaneously because surface activator composition The interfacial activity of superelevation, its aqueous solution, so as to effectively overcome the cohesive force between crude oil, can have with crude oil formation ultralow interfacial tension Beneficial to the outflow of crude oil, and then greatly improve oil displacement efficiency.Another aspect surface activator composition can change oil reservoir surface Wetability, the cationic surfactant in such as composition is mutual by the electronegative group with absorption on a solid surface Effect, is desorbed it, glossy wet structure is changed into neutral wetting or water wetting surface, reduction crude oil is in the surface of solids Adhesion work, so as to be conducive to the stripping of crude oil.Anions and canons surfactant mixed solution there is solubilising to make crude oil simultaneously With, further the crude oil sticked on the sandstone of rock stratum can be washed down, improve oil recovery factor.
Surface activator composition of the present invention is used during tertiary oil recovery, it is high with interfacial activity:Live on compound surface Property agent composition consumption be to remain to and underground crude oil formation 10 under the conditions of 0.01~0.05wt%-3~10-4MN/m ultralow boundary Face tension force;Washing oil ability is strong:Surface activator composition is to the washing oil rate of crude oil more than 40%;Surface activator composition system Simply.Because system is free of inorganic base, thus inorganic base is caused to stratum when avoiding field application injury, equipment is caused Corrosion and the problem of thus caused demulsification is difficult, achieve preferable technique effect.
Below by embodiment, the present invention is further elaborated.
Embodiment
【Embodiment 1a】
By CH3(CH2)10CH=CHCOOH, pentadecyl benzene and perchloric acid add reactor, are passed through N2It is 35kg/ to pressure cm2, in 200oC reacts 2 hours, wherein CH3(CH2)10CH=CHCOOH:Pentadecyl benzene:Perchloric acid mol ratio is 1:1:0.1. After reaction terminates, the Pd/C catalyst of fatty acid wt 1% is added, 100oC、100kg/cm2Pressure hydrogenation reaction 10 hours, and Pd/C catalyst is filtered out afterwards;The aryl that abovementioned steps are obtained replaces fatty alcohol and NaOH according to mol ratio 1:1.5 add Reactor, stirring adds required expoxy propane after 30 minutes, in 150oC reacts 5 hours;Then add the desired amount of epoxy second Alkane, in 200oC reacts 1 hour, obtains aryl substitution fatty alcohol polyoxypropylene APEO;Then according to polyethers: ClCH2SO3Na mol ratios 1:3 add sulfonated reagent, are warming up to 70oC reacts 10 hours.It is water-soluble with 5wt% hydrochloric acid after reaction terminates It is 2.5 that liquid, which is neutralized to pH value, and stratification, oil phase is neutralized to pH value 8 with 2 wt %NaOH, and vacuum removal moisture obtains target Product anions-nonionic surfactant.
Anionic-nonionic surfactant prepared by etamon chloride and the present invention is dissolved in water, and is stirred Mix 30 minutes, be configured to the 0.3wt% aqueous solution, then by above-mentioned surfactant according to cation:Anionic-nonionic surface Activating agent mol ratio 1: 0.1 is well mixed, and obtains a of surface activator composition 1, and it is constituted, structure is shown in Table 1 a.
【Embodiment 2a】
By CH3(CH2)6CH=CHCOOH, octyl group benzene and ClSO3H adds reactor, is passed through N2It is 100kg/cm to pressure2, In 50oC reacts 20 hours, wherein CH3(CH2)6CH=CHCOOH:Octyl group benzene:ClSO3H mol ratios are 1:1:0.25.Reaction terminates Afterwards, the Pd/C catalyst of fatty acid wt 0.2% is added, 120oC、120kg/cm2Pressure hydrogenation reaction 8 hours, is then filtered out Pd/C catalyst;The aryl that abovementioned steps are obtained replaces fatty alcohol and KOH according to mol ratio 1:1.5 add reactor, stir Mix and required expoxy propane is added after 30 minutes, in 120oC reacts 7 hours;The desired amount of oxirane is then added, in 160oC Reaction 4 hours, obtains aryl substitution fatty alcohol polyoxypropylene APEO;Then according to polyethers:Sodium isethionate mole Than 1:2.5 add sulfonated reagent, are warming up to 90oC reacts 8 hours.After reaction terminates, pH value is neutralized to 5wt% aqueous hydrochloric acid solutions For 2.5, stratification, oil phase is neutralized to pH value 8 with 10wt % ammoniacal liquor, vacuum removal moisture, obtains target product anion-non- Ionic surface active agent.
Anionic-nonionic surfactant prepared by hexadecyltrimethylammonium chloride and the present invention is dissolved separately in In water, stir 30 minutes, the 0.3 wt % aqueous solution is configured to, then by above-mentioned surfactant according to cation:Anion-non- Ionic surface active agent mol ratio 1: 0.5 is well mixed, and obtains a of surface activator composition 2, and it is constituted, structure is shown in Table 1 a.
【Embodiment 3a】
By CH3(CH2)4CH=CH(CH2)3COOH, amylbenzene and p-methyl benzenesulfonic acid add reactor, are passed through N2To pressure For 100kg/cm2, in 50oC reacts 20 hours, wherein CH3(CH2)4CH=CH(CH2)3COOH:Amylbenzene:Toluene sulfonic acide mole Than for 1:1:0.25.After reaction terminates, the Pt/C catalyst of fatty acid wt 0.2% is added, 300oC、100kg/cm2Pressure adds Hydrogen reacts 1 hour, then filters out Pt/C catalyst;The aryl that abovementioned steps are obtained replace fatty alcohol and CsOH according to mole Than 1:1.5 add reactor, and stirring adds required expoxy propane after 30 minutes, in 100oC reacts 20 hours;Then add institute The oxirane of requirement, in 200oC reacts 1 hour, obtains aryl substitution fatty alcohol polyoxypropylene APEO;Then according to Polyethers:Hydroxyl amyl group sodium sulfonate mol ratio 1:4 add sulfonated reagent, are warming up to 50oC reacts 20 hours.After reaction terminates, 5wt% is used Aqueous hydrochloric acid solution is neutralized to pH value for 2.5, stratification, and oil phase is neutralized to pH value 8 with 5 wt %NaOH, vacuum removal moisture, Obtain target product Anionic-nonionic surfactant.
Anionic-nonionic surfactant prepared by phenyl trimethicone ammonium chloride and the present invention is dissolved separately in water In, stir 30 minutes, the 0.3 wt % aqueous solution is configured to, then by above-mentioned surfactant according to cation:Anion-non-from Sub- surfactant molar ratio 1: 1.5 is well mixed, and obtains a of surface activator composition 3, and it is constituted, structure is shown in Table 1 a.
【Embodiment 4a】
By CH3CH2CH=CH(CH2)8COOH, p- ethvl-biphenyl and perchloric acid add reactor, are passed through N2It is to pressure 80kg/cm2, in 150oC reacts 1 hour, wherein CH3CH2CH=CH(CH2)8COOH:P- ethvl-biphenyl:Perchloric acid mol ratio is 1:1:0.10.After reaction terminates, the Pd/C catalyst of fatty acid wt 0.2% is added, 100oC、10kg/cm2Pressure hydrogenation is anti- Answer 10 hours, then filter out Pd/C catalyst;The aryl that abovementioned steps are obtained replaces fatty alcohol and KOH according to mol ratio 1: 1.5 add reactor, and stirring adds required expoxy propane after 30 minutes, in 140oC reacts 10 hours;Then add aequum Oxirane, in 180oC reacts 3 hours, obtains aryl substitution fatty alcohol polyoxypropylene APEO;Then according to poly- Ether:Hydroxypropyl azochlorosulfonate acid sodium mol ratio 1:2 add sulfonated reagent, are warming up to 70oC reacts 8 hours.After reaction terminates, 5wt% salt is used It is 2.5 that aqueous acid, which is neutralized to pH value, and stratification, oil phase is neutralized to pH value 7 with 2 wt %KOH, and vacuum removal moisture is obtained Target product Anionic-nonionic surfactant.
Anionic-nonionic surfactant difference prepared by stearyl dimethyl benzyl ammonium chloride and the present invention is molten In Xie Yushui, stir 30 minutes, the 0.3 wt % aqueous solution is configured to, then by above-mentioned surfactant according to cation:It is cloudy from Son-nonionic surfactant mol ratio 1: 10 is well mixed, and obtains a of surface activator composition 4, and it is constituted, structure is shown in Table 1 a。
【Embodiment 5a】
By CH3 CH2CH=CH(CH2)7COOH, benzene and perchloric acid add reactor, are passed through N2It is 40kg/cm to pressure2, in 120oC reacts 5 hours, wherein CH3 CH2CH=CH(CH2)7COOH:Benzene:Perchloric acid mol ratio is 1:1:0.12.After reaction terminates, The Pd/C catalyst of fatty acid wt 0.2% is added, 150oC、30kg/cm2Pressure hydrogenation reaction 8 hours, then filters out Pd/C Catalyst;The aryl that abovementioned steps are obtained replaces fatty alcohol and NaOH according to mol ratio 1:2 add reactor, stir 30 points Required expoxy propane is added after clock, in 150oC reacts 5 hours;The desired amount of oxirane is then added, in 150oC reactions 8 Hour, obtain aryl substitution fatty alcohol polyoxypropylene APEO;Then according to polyethers:Hydroxyl butyl sulfonic acid sodium mol ratio 1:2 Sulfonated reagent is added, 70 are warming up tooC reacts 8 hours.After reaction terminates, it is 2.5 that pH value is neutralized to 5wt% aqueous hydrochloric acid solutions, Stratification, oil phase is with 10wt%Mg (OH)2The aqueous solution is neutralized to pH value 8, vacuum removal moisture, obtain target product anion- Nonionic surfactant.
Anionic-nonionic surfactant prepared by decyl triethylammonium hydroxide and the present invention is dissolved separately in water In, stir 30 minutes, the 0.3 wt % aqueous solution is configured to, then by above-mentioned surfactant according to cation:Anion-non-from Sub- surfactant molar ratio 1: 1.3 is well mixed, and obtains a of surface activator composition 5, and it is constituted, structure is shown in Table 1 a.
【Embodiment 6a】
By CH3(CH2)3CH=CHCH2COOH, 4- phenyl-benzene sulfonic acid and perchloric acid add reactor, are passed through N2It is to pressure 50kg/cm2, in 140oC reacts 3 hours, wherein CH3(CH2)3CH=CHCH2COOH:4- phenyl-benzene sulfonic acid:Perchloric acid mol ratio For 1:1:0.15.After reaction terminates, the Pd/C catalyst of fatty acid wt 0.2% is added, 200oC、50kg/cm2Pressure is hydrogenated with Reaction 6 hours, then filters out Pd/C catalyst;The aryl that abovementioned steps are obtained replaces fatty alcohol and NaOH according to mol ratio 1:2 add reactor, and stirring adds required expoxy propane after 30 minutes, in 150oC reacts 5 hours;Then add aequum Oxirane, in 150oC reacts 8 hours, obtains aryl substitution fatty alcohol polyoxypropylene APEO;Then according to poly- Ether:ClCH2SO3Na mol ratios 1:2 add sulfonated reagent, are warming up to 85oC reacts 5 hours.After reaction terminates, 5wt% hydrochloric acid waters are used Solution is neutralized to pH value for 2.5, stratification, and oil phase is with 10 wt%Ca (OH)2Aqueous suspension be neutralized to pH value 8, vacuum takes off Moisture removal, obtains target product Anionic-nonionic surfactant.
Anionic-nonionic surfactant prepared by DTAC and the present invention is dissolved separately in In water, stir 30 minutes, the 0.3 wt % aqueous solution is configured to, then by above-mentioned surfactant according to cation:Anion-non- Ionic surface active agent mol ratio 1: 6 is well mixed, and obtains a of surface activator composition 6, and it is constituted, structure is shown in Table 1 a.
【Embodiment 7a】
By CH3(CH2)4CH=CH(CH2)3COOH, biphenyl and p-methyl benzenesulfonic acid add reactor, are passed through N2It is to pressure 50kg/cm2, in 100oC reacts 5 hours, wherein CH3(CH2)4CH=CH(CH2)3COOH:Biphenyl:P-methyl benzenesulfonic acid mol ratio For 1:1:0.15.After reaction terminates, the Pd/C catalyst of fatty acid wt 0.2% is added, 160oC、40kg/cm2Pressure is hydrogenated with Reaction 8 hours, then filters out Pd/C catalyst;The aryl that abovementioned steps are obtained replaces fatty alcohol and KOH according to mol ratio 1:2 add reactor, and stirring adds required expoxy propane after 30 minutes, in 120oC reacts 8 hours;Then add aequum Oxirane, in 150oC reacts 6 hours, obtains aryl substitution fatty alcohol polyoxypropylene APEO;Then according to poly- Ether:Sodium chloroacetate:NaOH mol ratios 1:1.5:2.0 add carboxylating reagent, are warming up to 75oC reacts 10 hours.After reaction terminates, It is neutralized to pH value 2.5 with 5wt% aqueous hydrochloric acid solutions, stratification, oil phase is with 10 wt%Mg (OH)2Aqueous suspension be neutralized to pH Value 8, vacuum removal moisture obtains target product Anionic-nonionic surfactant.
Anionic-nonionic surfactant prepared by tetrabutylammonium chloride and the present invention is dissolved in water, and is stirred Mix 30 minutes, the 0.3 wt % aqueous solution is configured to, then by above-mentioned surfactant according to cation:Anionic-nonionic table Face activating agent mol ratio 1: 2 is well mixed, and obtains a of surface activator composition 7, and it is constituted, structure is shown in Table 1 a.
【Embodiment 8a】
By CH3CH=CHCOOH, 4- phenyl-benzene sulfonic acid and to perchloric acid add reactor, be passed through N2It is 50kg/ to pressure cm2, in 130oC reacts 6 hours, wherein CH3CH=CHCOOH:4- phenyl-benzene sulfonic acid:Perchloric acid mol ratio is 1:1:0.10.Instead After should terminating, the Pd/C catalyst of fatty acid wt 0.2% is added, 160oC、40kg/cm2Pressure hydrogenation reaction 8 hours, then Filter out Pd/C catalyst;The aryl that abovementioned steps are obtained replaces fatty alcohol and KOH according to mol ratio 1:2 add reactor, Stirring adds required expoxy propane after 30 minutes, in 120oC reacts 8 hours;The desired amount of oxirane is then added, in 150oC reacts 6 hours, obtains aryl substitution fatty alcohol polyoxypropylene APEO;Then according to polyethers:3- chloropropionic acid sodium: NaOH mol ratios 1:1.5:2.0 add carboxylating reagent, are warming up to 75oC reacts 10 hours.After reaction terminates, 5wt% hydrochloric acid waters are used Solution is neutralized to pH value 2.5, stratification, and oil phase is with 10 wt%Ca (OH)2Aqueous suspension be neutralized to pH value 8, vacuum removal Moisture, obtains target product Anionic-nonionic surfactant.
Anionic-nonionic surfactant prepared by dioctadecyl dimethyl ammonium chloride and the present invention dissolves respectively Yu Shuizhong, stirs 30 minutes, the 0.3 wt % aqueous solution is configured to, then by above-mentioned surfactant according to cation:Anion- Nonionic surfactant mol ratio 1: 4 is well mixed, and obtains a of surface activator composition 8, and it is constituted, structure is shown in Table 1 a.
【Embodiment 9a】
By CH3(CH2)4CH=CH(CH2)2COOH, p- phenyl-benzoic acid and p-methyl benzenesulfonic acid add reactor, are passed through N2It is 50kg/cm to pressure2, in 120oC reacts 5 hours, wherein CH3(CH2)4CH=CH(CH2)2COOH:P- phenyl-benzoic acid: P-methyl benzenesulfonic acid mol ratio is 1:1:0.20.After reaction terminates, the Pd/C catalyst of fatty acid wt 0.2% is added, 170oC、40kg/cm2Pressure hydrogenation reaction 8 hours, then filters out Pd/C catalyst;The aryl that abovementioned steps are obtained replaces fat Fat alcohol and KOH are according to mol ratio 1:2 add reactor, and stirring adds required expoxy propane after 30 minutes, in 140oC reacts 8 hours;The desired amount of oxirane is then added, in 150oC reacts 7 hours, obtains aryl substitution fatty alcohol polyoxypropylene and gathers Oxygen vinethene;Then according to polyethers:Sodium chloroacetate:NaOH mol ratios 1:1.5:2.0 add carboxylating reagent, are warming up to 75oC reacts 10 hours.After reaction terminates, pH value 2.5 is neutralized to 5wt% aqueous hydrochloric acid solutions, stratification, oil phase is with 10 wt% NaOH With to pH value 8, vacuum removal moisture obtains target product Anionic-nonionic surfactant.
Anionic-nonionic surfactant prepared by four octyl group ammonium chlorides and the present invention is dissolved in water, and is stirred Mix 30 minutes, the 0.3 wt % aqueous solution is configured to, then by above-mentioned surfactant according to cation:Anionic-nonionic table Face activating agent mol ratio 1: 8 is well mixed, and obtains a of surface activator composition 9, and it is constituted, structure is shown in Table 1 a.
【Embodiment 10a】
By CH3(CH2)4CH=CH(CH2)3COOH, nonyl benzene and p-methyl benzenesulfonic acid add reactor, are passed through N2To pressure For 50kg/cm2, in 160oC reacts 8 hours, its CH3(CH2)4CH=CH(CH2)3COOH:Nonyl benzene:P-methyl benzenesulfonic acid mole Than for 1:1:0.15.After reaction terminates, the Pd/C catalyst of fatty acid wt 0.2% is added, 170oC、60kg/cm2Pressure adds Hydrogen reacts 8 hours, then filters out Pd/C catalyst;The aryl that abovementioned steps are obtained replace fatty alcohol and NaOH according to mole Than 1:2 add reactor, and stirring adds required expoxy propane after 30 minutes, in 160oC reacts 8 hours;Needed for then adding The oxirane of amount, in 150oC reacts 8 hours, obtains aryl substitution fatty alcohol polyoxypropylene APEO;Then according to poly- Ether:3- chloropropionic acid sodium:NaOH mol ratios 1:1.5:2.0 add carboxylating reagent, are warming up to 75oC reacts 10 hours.Reaction terminates Afterwards, pH value 2.5, stratification are neutralized to 5wt% aqueous hydrochloric acid solutions, oil phase is neutralized to pH value 8 with 10 wt% NaOH, and vacuum takes off Moisture removal, obtains target product Anionic-nonionic surfactant.
Anionic-nonionic surfactant prepared by benzyltriethylammoinium chloride and the present invention is dissolved separately in water In, stir 30 minutes, the 0.3 wt % aqueous solution is configured to, then by above-mentioned surfactant according to cation:Anion-non-from Sub- surfactant molar ratio 1: 1.5 is well mixed, and obtains a of surface activator composition 10, and it is constituted, structure is shown in Table 1 a.
【Embodiment 11a】
0.30wt% surface activator compositions prepared by embodiment 5a and 0.15wt% polyacrylamides (molecular weight 2600 Ten thousand) aqueous solution is well mixed, and obtains a kind of Polymer Used For Oil Displacement-surfactant complex.
Table 1a surfactant oil displacements composition is constituted and structure
【Embodiment 12a】Surfactant interface performance test
Surfactant oil displacement composition and Shuanghe Oil Field are determined with TX-500C rotating interfacial tensimeters5- 11 series of strata oil water interfacial tensions.It is 81 to determine temperatureoC, stratum water is NaHCO3Type, salinity is 7947mg/L, chloride ion content 2002 mg/L, Ca2+Content 20 mg/L, Mg2+The mg/L of content 12.2, surface activator composition consumption is 0.3 wt %.
Table 2a surfactant oil displacements composition and Shuan He oil fields5-11 series of strata oil water interfacial tension results
Embodiment Interfacial tension (mN/m)
1 a 0.0088
2 a 0.0081
3 a 0.0047
4 a 0.0085
5 a 0.0002
6 a 0.0068
7 a 0.0015
8 a 0.0058
9 a 0.0004
10 a 0.0005
11 a 0.0032
From a of table 2, compound surfactant prepared by a of a of embodiment 1~10 has good for Henan Oil Field Interface performance.The a of embodiment 11 shows that after surfactant prepared by the present invention is compounded with polymer, its interface performance is still Well.
The embodiment 10a surface activator compositions prepared are configured to various concentrations, respectively test and Shuanghe in Henan's oil Field5-11 series of strata oil water interfacial tensions, the results are shown in Table 3 a.
The a of table 3a various concentrations surface activator composition 10 and Shuanghe Oil Field5-11 series of strata oil water interfacial tensions
Dosage of surfactant (%) 0.01 0.02 0.05 0.1 0.2 0.3
Interfacial tension (MN/m) 0.008 0.006 0.004 0.001 0.0008 0.0005
The above results show that surfactant oil displacement composition of the present invention has very high boundary for Henan Oil Field crude oil Face activity.
The surface activator composition of a of embodiment 5 preparations is determined again with TX-500C rotating interfacial tensimeters with The former factory's oil water interfacial tension of oil extraction in oil field three.It is 80 to determine temperatureoC, formation water salinity is 79439mg/L, Ca2+Content 592 Mg/L, Mg2+Content 2871mg/L, dosage of surfactant is 0.3 wt %.Oil water interfacial tension is 0.004mN/m, shows this The surfactant of invention still has well interface characteristics not only for low mineralization oil reservoir simultaneously for high temperature and high salt oil deposit Can, have the advantages that the scope of application is wide.
【Embodiment 13a】Surface activator composition washing oil aptitude tests
Take Shuanghe Oil Field5-11 series of strata oil-sands, according to oil:Sand=1:4 (weight ratios) are 81oC agings 7 days, every 2 is small When stir 5 minutes;The oil-sand 5g after above-mentioned aging is then taken out, oil-sand is pressed with 0.3 wt % surfactant solution:Solution= 1:10(Weight ratio)It is well mixed, under reservoir temperature after aging 48 hours, with the crude oil in petroleum ether extraction solution, use 50ml Colorimetric cylinder constant volume, spectrophotometer colorimetric analysis at wavelength 430nm.Utilize standard curve gauging surface activator solution Central Plains Oil concentration.
Table 4a surfactant washing oil results
【The a of embodiment 14】Surface activator composition Oil Displacing Capacity is studied
It it is 30 centimetres in length, a diameter of 2.5 centimetres, permeability is 1.5 microns2Rock core on carry out oil displacement test.First Use Shuanghe Oil Field5-11 series of strata stratum water drive is to oil-free, metaideophone 0.3PV (rock pore volume) surfactant group After compound, then water drive to oil-free is produced, and is improved oil recovery factor and be the results are shown in Table 5 a.
Table 5a surface activator composition oil displacement test results
Embodiment Improve recovery ratio %
1 a 7.7
2 a 6.5
3 a 6.1
4 a 5.8
5 a 7.1
6 a 6.3
7 a 6.0
8 a 6.7
9 a 7.0
10 a 6.8
【The a of comparative example 1】
According to Northwest University's journal (natural science edition) 2000 year 2 month the 1st phase of volume 30, the method such as 28~31 Gong Yu armies Cetyl trimethylammonium bromide (CTAB) and lauryl sodium sulfate (SDS) are configured to mixed system (mol ratio 1:1.5), It is tested respectively in 0.3 wt % consumptions and Shuanghe Oil Field5-11 series of strata crude oil oil water interfacial tension, washing oil rate and drive Oiliness energy, it is as a result as follows:
Table 6a reference oil displacement agent performances
Interfacial tension (MN/m) Washing oil rate % Improve recovery ratio %
0.03 45.6 2.8
【The a of comparative example 2】
According to petroleum gas journal in August, 2007 the 4th phase of volume 29, (101~104) method such as Huang Hong degree etc. is by 0.01 Wt % cetyl trimethylammonium bromides and 0.02 wt % anion surfactants petroleum sulfonates and 1.8 wt %Na2CO3 Mixed system is configured to, it is tested respectively in 0.3 wt % consumptions and Shuanghe Oil Field5-11 series of strata crude oil oil-water interfaces Tension force, washing oil rate and Oil Displacing Capacity, it is as a result as follows:
Table 7a reference oil displacement agent performances
Interfacial tension (MN/m) Washing oil rate % Improve recovery ratio %
0.008 56.3 4.2
【Embodiment 1b】
By CH3(CH2)10CH=CHCOOH, pentadecyl benzene and perchloric acid add reactor, are passed through N2It is 35kg/ to pressure cm2, in 200oC reacts 2 hours, wherein CH3(CH2)10CH=CHCOOH:Pentadecyl benzene:Perchloric acid mol ratio is 1:1:0.1. After reaction terminates, the Pd/C catalyst of fatty acid wt 1% is added, 100oC、100kg/cm2Pressure hydrogenation reaction 10 hours, and Pd/C catalyst is filtered out afterwards;The aryl that abovementioned steps are obtained replaces fatty alcohol and NaOH according to mol ratio 1:1.5 add Reactor, stirring adds required expoxy propane after 30 minutes, in 150oC reacts 5 hours;Then add the desired amount of epoxy second Alkane, in 200oC reacts 1 hour, obtains aryl substitution fatty alcohol polyoxypropylene APEO;Then according to polyethers: ClCH2SO3Na mol ratios 1:3 add sulfonated reagent, are warming up to 70oC reacts 10 hours.It is water-soluble with 5wt% hydrochloric acid after reaction terminates It is 2.5 that liquid, which is neutralized to pH value, and stratification, oil phase is neutralized to pH value 8 with 2 wt %NaOH, and vacuum removal moisture obtains target Product anions-nonionic surfactant.
Anionic-nonionic surfactant prepared by etamon chloride and the present invention is dissolved in water, and is stirred Mix 30 minutes, be configured to the 0.3wt% aqueous solution, then by above-mentioned surfactant according to cation:Anionic-nonionic surface Activating agent mol ratio 1: 0.1 is well mixed, and obtains the b of surface activator composition 1, and it is constituted, structure is shown in Table 1 b.
【Embodiment 2b】
By CH3(CH2)6CH=CHCOOH, octyl group benzene and ClSO3H adds reactor, is passed through N2It is 100kg/cm to pressure2, In 50oC reacts 20 hours, wherein CH3(CH2)6CH=CHCOOH:Octyl group benzene:ClSO3H mol ratios are 1:1:0.25.Reaction terminates Afterwards, the Pd/C catalyst of fatty acid wt 0.2% is added, 120oC、120kg/cm2Pressure hydrogenation reaction 8 hours, is then filtered out Pd/C catalyst;The aryl that abovementioned steps are obtained replaces fatty alcohol and KOH according to mol ratio 1:1.5 add reactor, stir Mix and required expoxy propane is added after 30 minutes, in 120oC reacts 7 hours;The desired amount of oxirane is then added, in 160oC Reaction 4 hours, obtains aryl substitution fatty alcohol polyoxypropylene APEO;Then according to polyethers:Sodium isethionate mole Than 1:2.5 add sulfonated reagent, are warming up to 90oC reacts 8 hours.After reaction terminates, pH value is neutralized to 5wt% aqueous hydrochloric acid solutions For 2.5, stratification, oil phase is neutralized to pH value 8 with 10wt % ammoniacal liquor, vacuum removal moisture, obtains target product anion-non- Ionic surface active agent.
Anionic-nonionic surfactant prepared by hexadecyltrimethylammonium chloride and the present invention is dissolved separately in In water, stir 30 minutes, the 0.3 wt % aqueous solution is configured to, then by above-mentioned surfactant according to cation:Anion-non- Ionic surface active agent mol ratio 1: 0.5 is well mixed, and obtains the b of surface activator composition 2, and it is constituted, structure is shown in Table 1 b.
【Embodiment 3b】
By CH3(CH2)4CH=CH(CH2)3COOH, amylbenzene and p-methyl benzenesulfonic acid add reactor, are passed through N2To pressure For 100kg/cm2, in 50oC reacts 20 hours, wherein CH3(CH2)4CH=CH(CH2)3COOH:Amylbenzene:Toluene sulfonic acide mole Than for 1:1:0.25.After reaction terminates, the Pt/C catalyst of fatty acid wt 0.2% is added, 300oC、100kg/cm2Pressure adds Hydrogen reacts 1 hour, then filters out Pt/C catalyst;The aryl that abovementioned steps are obtained replace fatty alcohol and CsOH according to mole Than 1:1.5 add reactor, and stirring adds required expoxy propane after 30 minutes, in 100oC reacts 20 hours;Then add institute The oxirane of requirement, in 200oC reacts 1 hour, obtains aryl substitution fatty alcohol polyoxypropylene APEO;Then according to Polyethers:Hydroxyl amyl group sodium sulfonate mol ratio 1:4 add sulfonated reagent, are warming up to 50oC reacts 20 hours.After reaction terminates, 5wt% is used Aqueous hydrochloric acid solution is neutralized to pH value for 2.5, stratification, and oil phase is neutralized to pH value 8 with 5 wt %NaOH, vacuum removal moisture, Obtain target product Anionic-nonionic surfactant.
Anionic-nonionic surfactant prepared by phenyl trimethicone ammonium chloride and the present invention is dissolved separately in water In, stir 30 minutes, the 0.3 wt % aqueous solution is configured to, then by above-mentioned surfactant according to cation:Anion-non-from Sub- surfactant molar ratio 1: 1.5 is well mixed, and obtains the b of surface activator composition 3, and it is constituted, structure is shown in Table 1 b.
【Embodiment 4b】
By CH3CH2CH=CH(CH2)8COOH, benzoic acid and perchloric acid add reactor, are passed through N2It is 80kg/ to pressure cm2, in 150oC reacts 1 hour, wherein CH3CH2CH=CH(CH2)8COOH:Benzoic acid:Perchloric acid mol ratio is 1:1:0.10.Instead After should terminating, the Pd/C catalyst of fatty acid wt 0.2% is added, 100oC、10kg/cm2Pressure hydrogenation reaction 10 hours, and After filter out Pd/C catalyst;The aryl that abovementioned steps are obtained replaces fatty alcohol and KOH according to mol ratio 1:1.5 add reaction Kettle, stirring adds required expoxy propane after 30 minutes, in 140oC reacts 10 hours;The desired amount of oxirane is then added, In 180oC reacts 3 hours, obtains aryl substitution fatty alcohol polyoxypropylene APEO;Then according to polyethers:Hydroxypropyl sulfonic acid Sodium mol ratio 1:2 add sulfonated reagent, are warming up to 70oC reacts 8 hours.After reaction terminates, it is neutralized to 5wt% aqueous hydrochloric acid solutions PH value is 2.5, stratification, and oil phase is neutralized to pH value 7 with 2 wt %KOH, vacuum removal moisture, obtain target product it is cloudy from Son-nonionic surfactant.
Anionic-nonionic surfactant difference prepared by stearyl dimethyl benzyl ammonium chloride and the present invention is molten In Xie Yushui, stir 30 minutes, the 0.3 wt % aqueous solution is configured to, then by above-mentioned surfactant according to cation:It is cloudy from Son-nonionic surfactant mol ratio 1: 10 is well mixed, and obtains the b of surface activator composition 4, and it is constituted, structure is shown in Table 1 b。
【Embodiment 5b】
By CH3CH2CH=CH(CH2)7COOH, benzene and perchloric acid add reactor, are passed through N2It is 40kg/cm to pressure2, in 120oC reacts 5 hours, wherein CH3 CH2CH=CH(CH2)7COOH:Benzene:Perchloric acid mol ratio is 1:1:0.12.After reaction terminates, The Pd/C catalyst of fatty acid wt 0.2% is added, 150oC、30kg/cm2Pressure hydrogenation reaction 8 hours, then filters out Pd/C Catalyst;The aryl that abovementioned steps are obtained replaces fatty alcohol and NaOH according to mol ratio 1:2 add reactor, stir 30 points Required expoxy propane is added after clock, in 150oC reacts 5 hours;The desired amount of oxirane is then added, in 150oC reactions 8 Hour, obtain aryl substitution fatty alcohol polyoxypropylene APEO;Then according to polyethers:Hydroxyl butyl sulfonic acid sodium mol ratio 1:2 Sulfonated reagent is added, 70 are warming up tooC reacts 8 hours.After reaction terminates, it is 2.5 that pH value is neutralized to 5wt% aqueous hydrochloric acid solutions, Stratification, oil phase is with 10wt%Mg (OH)2The aqueous solution is neutralized to pH value 8, vacuum removal moisture, obtain target product anion- Nonionic surfactant.
Anionic-nonionic surfactant prepared by decyl triethylammonium hydroxide and the present invention is dissolved separately in water In, stir 30 minutes, the 0.3 wt % aqueous solution is configured to, then by above-mentioned surfactant according to cation:Anion-non-from Sub- surfactant molar ratio 1: 1.3 is well mixed, and obtains the b of surface activator composition 5, and it is constituted, structure is shown in Table 1 b.
【Embodiment 6b】
By CH3(CH2)3CH=CHCH2COOH, benzene sulfonic acid and perchloric acid add reactor, are passed through N2It is 50kg/ to pressure cm2, in 140oC reacts 3 hours, wherein CH3(CH2)3CH=CHCH2COOH:Benzene sulfonic acid:Perchloric acid mol ratio is 1:1:0.15.Instead After should terminating, the Pd/C catalyst of fatty acid wt 0.2% is added, 200oC、50kg/cm2Pressure hydrogenation reaction 6 hours, then Filter out Pd/C catalyst;The aryl that abovementioned steps are obtained replaces fatty alcohol and NaOH according to mol ratio 1:2 add reactor, Stirring adds required expoxy propane after 30 minutes, in 150oC reacts 5 hours;The desired amount of oxirane is then added, in 150oC reacts 8 hours, obtains aryl substitution fatty alcohol polyoxypropylene APEO;Then according to polyethers:ClCH2SO3Na rubs You compare 1:2 add sulfonated reagent, are warming up to 85oC reacts 5 hours.After reaction terminates, pH value is neutralized to 5wt% aqueous hydrochloric acid solutions For 2.5, stratification, oil phase is with 10 wt%Ca (OH)2Aqueous suspension be neutralized to pH value 8, vacuum removal moisture obtains target Product anions-nonionic surfactant.
Anionic-nonionic surfactant prepared by DTAC and the present invention is dissolved separately in In water, stir 30 minutes, the 0.3 wt % aqueous solution is configured to, then by above-mentioned surfactant according to cation:Anion-non- Ionic surface active agent mol ratio 1: 6 is well mixed, and obtains the b of surface activator composition 6, and it is constituted, structure is shown in Table 1 b.
【Embodiment 7b】
By CH3(CH2)4CH=CH(CH2)3COOH, biphenyl and p-methyl benzenesulfonic acid add reactor, are passed through N2It is to pressure 50kg/cm2, in 100oC reacts 5 hours, wherein CH3(CH2)4CH=CH(CH2)3COOH:Biphenyl:P-methyl benzenesulfonic acid mol ratio For 1:1:0.15.After reaction terminates, the Pd/C catalyst of fatty acid wt 0.2% is added, 160oC、40kg/cm2Pressure is hydrogenated with Reaction 8 hours, then filters out Pd/C catalyst;The aryl that abovementioned steps are obtained replaces fatty alcohol and KOH according to mol ratio 1:2 add reactor, and stirring adds required expoxy propane after 30 minutes, in 120oC reacts 8 hours;Then add aequum Oxirane, in 150oC reacts 6 hours, obtains aryl substitution fatty alcohol polyoxypropylene APEO;Then according to poly- Ether:Sodium chloroacetate:NaOH mol ratios 1:1.5:2.0 add carboxylating reagent, are warming up to 75oC reacts 10 hours.After reaction terminates, It is neutralized to pH value 2.5 with 5wt% aqueous hydrochloric acid solutions, stratification, oil phase is with 10 wt%Mg (OH)2Aqueous suspension be neutralized to pH Value 8, vacuum removal moisture obtains target product Anionic-nonionic surfactant.
Anionic-nonionic surfactant prepared by tetrabutylammonium chloride and the present invention is dissolved in water, and is stirred Mix 30 minutes, the 0.3 wt % aqueous solution is configured to, then by above-mentioned surfactant according to cation:Anionic-nonionic table Face activating agent mol ratio 1: 2 is well mixed, and obtains the b of surface activator composition 7, and it is constituted, structure is shown in Table 1 b.
【Embodiment 8b】
By CH3CH=CHCOOH, benzene sulfonic acid and to perchloric acid add reactor, be passed through N2It is 50kg/cm to pressure2, in 130oC reacts 6 hours, wherein CH3CH=CHCOOH:Benzene sulfonic acid:Perchloric acid mol ratio is 1:1:0.10.After reaction terminates, add The Pd/C catalyst of fatty acid wt 0.2%, 160oC、40kg/cm2Pressure hydrogenation reaction 8 hours, then filters out Pd/C catalysis Agent;The aryl that abovementioned steps are obtained replaces fatty alcohol and KOH according to mol ratio 1:2 add reactor, after stirring 30 minutes Expoxy propane needed for adding, in 120oC reacts 8 hours;The desired amount of oxirane is then added, in 150oC reacts 6 hours, Obtain aryl substitution fatty alcohol polyoxypropylene APEO;Then according to polyethers:3- chloropropionic acid sodium:NaOH mol ratios 1:1.5: 2.0 add carboxylating reagent, are warming up to 75oC reacts 10 hours.After reaction terminates, pH value is neutralized to 5wt% aqueous hydrochloric acid solutions 2.5, stratification, oil phase is neutralized to pH value 8 with the 10 wt%NaOH aqueous solution, and vacuum removal moisture obtains target product cloudy Ion-nonionic surfactant.
Anionic-nonionic surfactant prepared by dioctadecyl dimethyl ammonium chloride and the present invention dissolves respectively Yu Shuizhong, stirs 30 minutes, the 0.3 wt % aqueous solution is configured to, then by above-mentioned surfactant according to cation:Anion- Nonionic surfactant mol ratio 1: 4 is well mixed, and obtains the b of surface activator composition 8, and it is constituted, structure is shown in Table 1 b.
【Embodiment 9b】
By CH3(CH2)4CH=CH(CH2)2COOH, benzoic acid and p-methyl benzenesulfonic acid add reactor, are passed through N2To pressure For 50kg/cm2, in 120oC reacts 5 hours, wherein CH3(CH2)4CH=CH(CH2)2COOH:Benzoic acid:P-methyl benzenesulfonic acid rubs You are than being 1:1:0.20.After reaction terminates, the Pd/C catalyst of fatty acid wt 0.2% is added, 170oC、40kg/cm2Pressure Hydrogenation reaction 8 hours, then filters out Pd/C catalyst;The aryl that abovementioned steps are obtained replaces fatty alcohol and KOH according to rubbing You compare 1:2 add reactor, and stirring adds required expoxy propane after 30 minutes, in 140oC reacts 8 hours;Then add institute The oxirane of requirement, in 150oC reacts 7 hours, obtains aryl substitution fatty alcohol polyoxypropylene APEO;Then according to Polyethers:Sodium chloroacetate:NaOH mol ratios 1:1.5:2.0 add carboxylating reagent, are warming up to 75oC reacts 10 hours.Reaction terminates Afterwards, pH value 2.5, stratification are neutralized to 5wt% aqueous hydrochloric acid solutions, oil phase is neutralized to pH value 8 with 10 wt% NaOH, and vacuum takes off Moisture removal, obtains target product Anionic-nonionic surfactant.
Anionic-nonionic surfactant prepared by four octyl group ammonium chlorides and the present invention is dissolved in water, and is stirred Mix 30 minutes, the 0.3 wt % aqueous solution is configured to, then by above-mentioned surfactant according to cation:Anionic-nonionic table Face activating agent mol ratio 1: 8 is well mixed, and obtains the b of surface activator composition 9, and it is constituted, structure is shown in Table 1 b.
【Embodiment 10b】
By CH3(CH2)4CH=CH(CH2)3COOH, nonyl benzene and p-methyl benzenesulfonic acid add reactor, are passed through N2To pressure For 50kg/cm2, in 160oC reacts 8 hours, its CH3(CH2)4CH=CH(CH2)3COOH:Nonyl benzene:P-methyl benzenesulfonic acid mole Than for 1:1:0.15.After reaction terminates, the Pd/C catalyst of fatty acid wt 0.2% is added, 170oC、60kg/cm2Pressure adds Hydrogen reacts 8 hours, then filters out Pd/C catalyst;The aryl that abovementioned steps are obtained replace fatty alcohol and NaOH according to mole Than 1:2 add reactor, and stirring adds required expoxy propane after 30 minutes, in 160oC reacts 8 hours;Needed for then adding The oxirane of amount, in 150oC reacts 8 hours, obtains aryl substitution fatty alcohol polyoxypropylene APEO;Then according to poly- Ether:3- chloropropionic acid sodium:NaOH mol ratios 1:1.5:2.0 add carboxylating reagent, are warming up to 75oC reacts 10 hours.Reaction terminates Afterwards, pH value 2.5, stratification are neutralized to 5wt% aqueous hydrochloric acid solutions, oil phase is neutralized to pH value 8 with 10 wt% NaOH, and vacuum takes off Moisture removal, obtains target product Anionic-nonionic surfactant.
【Embodiment 11b】
0.30wt% surface activator compositions prepared by the b of embodiment 5 and 0.15wt% polyacrylamide (molecular weight 2600 ten thousand) aqueous solution be well mixed, obtain a kind of Polymer Used For Oil Displacement-surfactant complex.
Table 1b surfactant oil displacements composition is constituted and structure
【The b of embodiment 12】Surfactant interface performance test
Surfactant oil displacement composition and Shuanghe Oil Field are determined with TX-500C rotating interfacial tensimeters5- 11 series of strata oil water interfacial tensions.It is 81 to determine temperatureoC, stratum water is NaHCO3Type, salinity is 7947mg/L, chloride ion content 2002 mg/L, Ca2+Content 20 mg/L, Mg2+The mg/L of content 12.2, surface activator composition consumption is 0.3 wt %.
Table 2b surfactant oil displacements composition and Shuan He oil fields5-11 series of strata oil water interfacial tension results
Embodiment Interfacial tension (mN/m)
1 b 0.0095
2 b 0.0088
3 b 0.0055
4 b 0.0093
5 b 0.0002
6 b 0.0075
7 b 0.0021
8 b 0.0064
9 b 0.0005
10 b 0.0006
11 b 0.0040
From the b of table 2, compound surfactant prepared by the b of the b of embodiment 1~10 has good for Henan Oil Field Interface performance.The b of embodiment 11 shows that after surfactant prepared by the present invention is compounded with polymer, its interface performance is still Well.
The b of embodiment 10 surface activator compositions prepared are configured to various concentrations, respectively test and Shuanghe in Henan's oil Field5-11 series of strata oil water interfacial tensions, the results are shown in Table 3 b.
The b of table 3b various concentrations surface activator composition 10 and Shuanghe Oil Field5-11 series of strata oil water interfacial tensions
Dosage of surfactant (%) 0.01 0.02 0.05 0.1 0.2 0.3
Interfacial tension (MN/m) 0.009 0.007 0.005 0.002 0.0009 0.0006
The above results show that surfactant oil displacement composition of the present invention has very high boundary for Henan Oil Field crude oil Face activity.
The surface activator composition of the b of embodiment 5 preparations is determined again with TX-500C rotating interfacial tensimeters with The former factory's oil water interfacial tension of oil extraction in oil field three.It is 80 to determine temperatureoC, formation water salinity is 79439mg/L, Ca2+Content 592 Mg/L, Mg2+Content 2871mg/L, dosage of surfactant is 0.3 wt %.Oil water interfacial tension is 0.004mN/m, shows this The surfactant of invention still has well interface characteristics not only for low mineralization oil reservoir simultaneously for high temperature and high salt oil deposit Can, have the advantages that the scope of application is wide.
【The b of embodiment 13】Surface activator composition washing oil aptitude tests
Take Shuanghe Oil Field5-11 series of strata oil-sands, according to oil:Sand=1:4 (weight ratios) are 81oC agings 7 days, every 2 is small When stir 5 minutes;The oil-sand 5g after above-mentioned aging is then taken out, oil-sand is pressed with 0.3 wt % surfactant solution:Solution= 1:10(Weight ratio)It is well mixed, under reservoir temperature after aging 48 hours, with the crude oil in petroleum ether extraction solution, use 50ml Colorimetric cylinder constant volume, spectrophotometer colorimetric analysis at wavelength 430nm.Utilize standard curve gauging surface activator solution Central Plains Oil concentration.
Table 4b surfactant washing oil results
Embodiment Washing oil rate %
1 b 65.3
2 b 63.9
3 b 47.6
4 b 60.3
5 b 46.2
6 b 54.4
7 b 48.5
8 b 61.3
9 b 55.1
10 b 52.2
【The b of embodiment 14】Surface activator composition Oil Displacing Capacity is studied
It it is 30 centimetres in length, a diameter of 2.5 centimetres, permeability is 1.5 microns2Rock core on carry out oil displacement test.First Use Shuanghe Oil Field5-11 series of strata stratum water drive to aqueous 92 wt %, metaideophone 0.3pv (rock pore volume) surface is lived Property agent composition after, water drive to aqueous 100 wt %, improve oil recovery factor the results are shown in Table 5.
Table 5b surface activator composition oil displacement test results
Embodiment Improve recovery ratio %
1 b 7.2
2 b 6.0
3 b 5.6
4 b 5.3
5 b 6.6
6 b 5.8
7 b 5.5
8 b 6.2
9 b 6.5
10 b 6.3

Claims (8)

1. a kind of surfactant oil displacement composition, including cationic surfactant and Anionic-nonionic surface-active Agent, described cationic surfactant and the mol ratio of Anionic-nonionic surfactant are 1: 0.01~1: 100, its Cationic surfactant is selected from least one of quaternary ammonium salt or quaternary amine alkali, Anionic-nonionic surfactant molecule Formula is:
Wherein M is any one in alkali metal, alkaline-earth metal, ammonium root;R is H, C1~C20Alkyl, C6~C10Aryl or Any one in substituted aryl;R ' is C1~C10Alkylidene;M, n are any one integer in 1~10;X be more than 0 and Any one integer or decimal in less than 100;Y is any one integer or decimal in 0~100;R is M in general molecular formula With SO3The mol ratio of group or M and COO groups, the r=1 when M is alkali metal or ammonium root, the r=when M is alkaline-earth metal 0.5。
2. surfactant oil displacement composition according to claim 1, it is characterised in that x is appointing more than 0 and less than 50 One integer of meaning or decimal, y are any one integer or decimal in 0~50.
3. surfactant oil displacement composition according to claim 1, it is characterised in that the cationic surfactant Selected from least one of tetra-alkyl ammonium chloride or tetra-alkyl ammonium hydroxide.
4. surfactant oil displacement composition according to claim 1, it is characterised in that the cationic surfactant Carbon number in molecule is 4~40.
5. surfactant oil displacement composition according to claim 1, it is characterised in that R ' is C1~C5Alkylidene.
6. the preparation method of surfactant oil displacement composition, is comprised the steps of described in claim 1:
A) unrighted acid, acidic catalyst and aromatic hydrocarbon are added into reactor, it is small in 50~150 DEG C of addition reactions 1~20 When, wherein unrighted acid:Aromatic hydrocarbons mol ratio is 1:(0.5~1.0);After reaction terminates, in 100~300 DEG C of temperature, pressure 10~100kg/cm2Hydrogenation reaction 1~10 hour, so that aryl substituted carboxylic acid is reduced into aryl substituted alcohols;Aryl is replaced Alcohol, base catalyst and required expoxy propane, oxirane add reactor, in 100~200 DEG C carry out etherification reactions 1~ 20 hours;Then add sulfonated reagent or carboxylating reagent carry out sulfonation/carboxylation reaction, reacted 1~20 hour in 50~100 DEG C, Wherein aryl replaces fatty alcohol polyoxypropylene APEO:The mol ratio of sulfonated reagent/carboxylating reagent is 1:(1~4);Reaction After end, adjusted with acidic aqueous solution to pH=1~3, carry out water-oil separating, oil phase adds alkali lye and is neutralized to pH=7~9, obtains Replace fatty alcohol polyoxypropylene polyethenoxy ether sulphonate or aryl substitution fatty alcohol polyoxypropylene APEO carboxylic to aryl Hydrochlorate Anionic-nonionic surfactant;
B) the Anionic-nonionic surfactant obtained by cationic surfactant and according to step a) is dissolved separately in It is then well mixed according to mol ratio 1: 0.1~1: 10 in water.
7. the preparation method of surfactant oil displacement composition according to claim 6, it is characterised in that step a) is described Base catalyst is selected from least one of NaOH or KOH.
8. application of the surfactant oil displacement composition in the displacement of reservoir oil of oil field any one of claim 1 to 5.
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