CN106566510A - Ternary combination flooding composition, and application thereof in chemical flooding - Google Patents

Ternary combination flooding composition, and application thereof in chemical flooding Download PDF

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CN106566510A
CN106566510A CN201610927353.5A CN201610927353A CN106566510A CN 106566510 A CN106566510 A CN 106566510A CN 201610927353 A CN201610927353 A CN 201610927353A CN 106566510 A CN106566510 A CN 106566510A
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ternary composite
composite driving
compositionss
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sodium
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CN106566510B (en
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蔡红岩
王强
李建国
张群
王正波
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China Petroleum and Natural Gas Co Ltd
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    • C09K8/00Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/58Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
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    • C09K8/58Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
    • C09K8/588Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific polymers
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    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
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Abstract

The invention provides a ternary combination flooding composition, and an application thereof in chemical flooding. The ternary combination flooding composition comprises 0.03-3.0 wt% of an alkaline substance, 0.05-0.30 wt% of a surfactant, 0.05-0.30 wt% of a polymer, and the balance of water; the surfactant is one or a combination of several of long and short chain betaines with a structure shown in the description; and in the structure, R is a C10-C24 linear or branched alkyl group, R1 is a C2-C5 linear alkyl group, R2 is a C2-C5 linear alkyl group, and X is -CH2COO-, -CH2CH2SO3, -CH2CH2CH2SO3- or -CH2CHOHCH2SO3-. A test result shows that the ternary combination flooding composition has a good oil flooding effect.

Description

A kind of ternary composite driving compositionss and its application in chemical flooding
Technical field
The invention belongs to oil field development technical field, and in particular to a kind of ternary composite driving compositionss and its in chemical flooding Application.
Background technology
With continually developing for oil field, Chinese land main force oil field enters high recovery percent of reserves, high water cut stage.Old filed is steady Produce, volume increase becomes the important topic put in face of oil field development worker.Chemistry with polymer flooding, ternary composite driving as representative Drive the stable yields that raising recovery efficiency technique is domestic crude oil and be made that significant contribution.In Daqing oil field, using heavy alkylbenzene sulfonate Strong base ternary composite driving (sodium hydroxide/heavy alkylbenzene sulfonate/polymer) technology of surfactant has been enter into expanding chemical industry The industry application stage;Using the Weak Base ASP Flood (sodium carbonate/petroleum sulfonate/polymer) of petroleum sulfonate surfactant The field test of technology also takes successfully and continues to expand scene applies scale.
In ternary composite driving, most representational surfactant product is heavy alkylbenzene sulfonate and petroleum sulfonate.Two Person's production needed raw material heavy alkyl benzene, distillate are cheap and easy to get, and the relatively conventional surfactant of simple production process, cost It is low.But, as industrial by-products heavy alkyl benzene production capacity is limited, constrain the scale of heavy alkylbenzene sulfonate scene application;And Petroleum sulfonate is excessively complicated due to raw materials for production aromatic rich cut oil component, causes properties of product easily to receive fraction oil quality shadow Ring, product stability has much room for improvement.And, heavy alkylbenzene sulfonate and petroleum sulfonate salt tolerant and resistance to divalent ion ability compared with Difference, it is difficult to be applied to high salinity, the oil reservoir of high divalent ion content.
Compared with other classes of surfactant, betaine type amphoteric surfac-tant has many excellent performances, such as pole Good stability in hard water, salt tolerance, low toxicity, easily biological-degradable, moderate performance compatibility are good etc..Additionally, beet alkali surface activator Also there is preferable chemical stability, good emulsibility, dispersibility and antistatic behaviour, some types also have sterilization and press down mould Property, viscoelasticity etc., range of application is quite varied.
Conventional Long carbon chain dimethyl betaine is long due to single hydrophobic chain, its dissolubility is poor have impact on it is actually used. In the recent decade, substantial amounts of research work has been carried out in terms of displacement of reservoir oil garden beet alkaline surfactant both at home and abroad, have developed A series of betaine type surfactant oil displacements.Such as aryl alkyl glycine betaine (CN102618244A), octadecyl hexyl first Base carboxybetaine (Song Hongjuan, fine chemistry industry, 2015:32 (6)) and the alkyl polyoxyethylene ether Radix Betae with Ju Beite structures Alkali (CN101745343A) etc..But, aryl alkyl glycine betaine and octadecyl hexyl carboxybetaine preparation technology compare It is complicated;Synthesis material used by the alkyl polyoxyethylene ether glycine betaine of Ju Beite structures occupies shellfish Extra Old due to production technology and catalyst The problems such as be difficult to obtain the large-scale raw material of industry.And, the alkyl polyoxyethylene ether glycine betaine of Ju Beite structures and octadecane The single dose of base hexyl carboxybetaine is difficult to reach ultralow interfacial tension with crude oil.For example, cetyl Polyethylene oxide (3) ether The ultralow interfacial tension scope that hydroxypropyl carboxybetaine could need to be reached with crude oil in the case of addition weak base sodium carbonate (10-3The mN/m orders of magnitude and following).Octadecyl hexyl carboxybetaine need to be with hexadecyldimethyl benzyl ammonium carboxybetaine and double Dodecyl methyl carboxybetaine compounding could reach ultralow interfacial tension with crude oil.
The content of the invention
To overcome the problems referred to above, it is an object of the invention to provide a kind of ternary composite driving compositionss, the ternary composite driving group Compound has good oil displacement efficiency.
To reach above-mentioned purpose, the invention provides a kind of ternary composite driving compositionss, by percentage to the quality, preparing should The component of ternary composite driving compositionss includes:
Alkaline matter 0.03wt%-3.0wt%, surfactant 0.05wt%-0.30wt%, polymer 0.05wt%- 0.30wt%, and the water of surplus;
Wherein, the surfactant is the combination of one or more in the long short chain glycine betaine with structure shown in formula I:
In the formula I, R is C10-C24Straight chained alkyl or branched alkyl, R1For C2-C5Straight chained alkyl, R2For C2-C5 Straight chained alkyl, X be-CH2COO-、-CH2CH2SO3 -、-CH2CH2CH2SO3 -Or-CH2CHOHCH2SO3 -
In the ternary composite driving compositionss that the present invention is provided, the long short chain glycine betaine that uses (especially three alkyl bases The chain length combination of group) branched structure with a kind of special long-chain, short chain combination is dense with relatively large critical micell Degree, preferable dissolubility and practicality.And the hydrophobic group end of the long short chain beet alkali surface activator has multiple methyl bases Group, so as to more effectively reduce the interfacial tension of the long short chain glycine betaine so as to excellent oil-water interfaces performance, because This, obtained ternary composite driving composition properties are excellent, and oil displacement efficiency is high.
A kind of preparation method of above-mentioned long short chain glycine betaine is:
It is first C by organic salt and the total carbon number of alkyl3-C10Symmetrically or non-symmetrically double alkyl secondary amines press material amount ratio be 1: (1-5) tertiary amine synthetic reaction is carried out, obtains intermediate tertiary amine;Then the intermediate tertiary amine and halogenated hydrocarbons are pressed the amount ratio of material For 1:(0.5-2) quaterisation is carried out, long short chain glycine betaine is obtained;
Wherein, the organic salt includes 3- chlorine-2-hydroxyl propanesulfonates, 2- sodium chloroacetates, 2- bromoethyls sodium sulfonate or 3- Bromopropyl sodium sulfonate;The halogenated hydrocarbons include chloralkane or brominated alkanes.
Specifically, in the preparation method of above-mentioned long short chain betaine compound:
Double alkyl secondary amines can be diethylamine, di-n-propylamine, ethyl pentyl group secondary amine or two n-amylamines;
The step of tertiary amine synthetic reaction, is specially:The organic salt is made into aqueous solution, then at a temperature of 5 DEG C -40 DEG C It is added in described pair of alkyl secondary amine, and 0.5h-4h is reacted at a temperature of 5 DEG C -80 DEG C and obtain mixed liquor, the mixed liquor is carried It is pure, obtain the intermediate tertiary amine;
The step of mixed liquor is purified is specially:The mixed liquor is concentrated, addition ethanol, filtered while hot, then By the filtrate crystallisation for obtaining, washing sucking filtration, recrystallization, the intermediate tertiary amine is obtained;
The step of quaterisation, is specially:The intermediate tertiary amine and halogenated alkane are dissolved in n-butyl alcohol, so 10h-30h being reacted at a temperature of 50 DEG C -130 DEG C afterwards, obtaining crude product, the crude product is purified, long short chain glycine betaine is obtained.
The preparation method of above-mentioned long short chain betaine compound, is first prepared in the middle of Long carbon chain tertiary amine with the synthesis of conventional glycine betaine Body, to carry out quaterisation again different, but first with the double short chain tertiary amine intermediates of short chain secondary amine synthesis, then with long-chain halogenated alkane Carry out quaterisation and obtain long short chain glycine betaine.Reaction is only adopted with more typical synthesis material halogenated alkane, secondary amine as raw material Betaine type target product with branched structure is prepared just with the reaction of 2 steps.As can be seen here, the preparation of the long short chain glycine betaine Process is simple, therefore, the popularization and application of the ternary composite driving compositionss of present invention offer are provided.
In above-mentioned ternary composite driving compositionss, it is preferable that the R is straight chain or branched-C10H21、-C11H23、- C12H25、-C13H27、-C14H29、-C15H31、-C16H33、-C18H37、-C20H41、-C22H45Or-C24H49;The R1For straight chain- C2H5、-C3H7、-C4H9Or-C5H11;The R2For-the C of straight chain2H5、-C3H7、-C4H9Or-C5H11
In above-mentioned ternary composite driving compositionss, it is preferable that the long short chain glycine betaine is dodecyl diethyl hydroxypropyl Sulfobetaines (formula A), the third sulfobetaines of dodecyl diamyl (formula B), myristyl ethyl pentyl group carboxybetaine (formula C), octadecyldimethylamine base hydroxypropyl sulfobetaines (formula D), cetyl dipropyl carboxybetaine (formula E), cetyl second Base butyl second sulfobetaines (formula F), octadecyl Diethlycarboxy glycine betaine (formula G) or octadecyl dipropyl hydroxypropyl sulfo group Glycine betaine (formula H).Wherein, the third sulfobetaines of dodecyl diamyl, cetyl ethyl-butyl second sulfobetaines or ten The using effect of eight alkyl dipropyl hydroxypropyl sulfobetaines is more excellent.The structural formula of above-mentioned each long short chain betaine compound is such as Under:
In above-mentioned ternary composite driving compositionss, it is preferable that the R1And R2It is asynchronously C2H5
In above-mentioned ternary composite driving compositionss, it is preferable that the polymer is hydrophobic associated polymer, star heatproof is resistance to Salt polymer or partially hydrolyzed polyacrylamide (PHPA);It is further preferred that the mean molecule quantity of the polymer is 12,000,000-3500 Ten thousand.
Star polymer is that possess strong salt resistance heat-resisting property by what a core and multiple super aggregate strands were constituted Water-soluble polymer.Polymer molecule backbone starization can effectively increase the rule of the rigidity and molecular structure of polymer molecular chain Whole property so that the curling of polymer molecular chain is difficult, the hydraulic radius increase of strand rotation, tackifying, temperature resistance, salt resistance energy Power is significantly improved.
In above-mentioned ternary composite driving compositionss, it is preferable that the degree of hydrolysis of the star salt-tolerance is 1%- 5%;The degree of hydrolysis of the partially hydrolyzed polyacrylamide (PHPA) is 20%-30%.
In above-mentioned ternary composite driving compositionss, it is preferable that the star salt-tolerance is The star polymer prepared in CN201010565501.6;The hydrophobic associated polymer be polymer A N125, the part water Solution polyacrylamide is MO4000 polymer.
In above-mentioned ternary composite driving compositionss, the alkaline matter that alkaline matter is commonly used in being selected from oil displacement agent field. Preferably, the alkaline matter includes trimethylamine, triethylamine, tetrasodium ethylenediamine tetraacetate, sodium carbonate, sodium bicarbonate, hydroxide The combination of one or more in sodium, potassium hydroxide, sodium silicate, sodium tetraborate and sodium phosphate.Wherein, sodium carbonate, sodium tetraborate Or the using effect of tetrasodium ethylenediamine tetraacetate is more excellent.
In above-mentioned ternary composite driving compositionss, it is preferable that the consumption of the alkaline matter is 0.05wt%- 0.20wt%, the consumption of the surfactant is 0.10wt%-0.30wt%, and the consumption of the polymer is 0.10wt%- 0.30wt%.
In above-mentioned ternary composite driving compositionss, it is preferable that the consumption of the alkaline matter be 0.20wt%, the surface The consumption of activating agent is 0.20wt%, and the consumption of the polymer is 0.20wt%.
In above-mentioned ternary composite driving compositionss, it is preferable that the water for being adopted can be oil field injected clear water, injection sewage With the one kind in recovered water or wherein several combinations, and the salinity of water can be 10-200000mg/L.
Present invention also offers application of the above-mentioned ternary composite driving compositionss in chemical flooding.
The ternary composite driving compositionss that the present invention is provided are lived as surface using the long short chain glycine betaine with special construction Property agent, compared with traditional single straight chained alkyl dimethyl betaine isomerss, with more preferable dissolubility, higher interface Activity.With the alkyl polyoxyethylene ether of aryl alkyl glycine betaine, octadecyl hexyl methyl carboxybetaine and Ju Beite structures Glycine betaine etc. is compared, and long short chain synthetic process for betaine as used in the present invention is simple, the high income of intermediate and final product And interface performance is excellent.Compare with heavy alkylbenzene sulfonate with petroleum sulfonate surfactant, the ternary that the present invention is provided is multiple Close and drive long short chain beet alkali surface activator salt resistant character, the excellent performance of resistance to divalent ion used by compositionss.
Core oil-displacement test result shows:After water drive terminates, using conventional octadecyldimethyl hydroxypropyl sulfobetaines The ternary composite driving compositionss of alkali improve recovery ratio 15.72%;Under substantially same experiment condition, using comprising myristyl The ternary composite driving compositionss provided by the present invention of dipropyl hydroxypropyl sulfobetaines improve recovery ratio and reach 20.89%.Can See, higher oil displacement efficiency can be obtained using the ternary composite driving compositionss comprising long short chain glycine betaine provided by the present invention. Therefore, the ternary composite driving compositionss for being provided using the present invention carry out ternary oil displacement operation advantageously.
Description of the drawings
Fig. 1 is the nmr spectrum of 3- (N, N- dipropyl the amino) -2- hydroxypropionate sodiums of embodiment 2;
Fig. 2 is the nmr spectrum of the octadecyldimethylamine base hydroxypropyl sulfobetaine surfactant of embodiment 2.
Specific embodiment
In order to be more clearly understood to the technical characteristic of the present invention, purpose and beneficial effect, now to skill of the invention Art scheme carry out it is described further below, but it is not intended that to the present invention can practical range restriction.
In specific embodiment, involved portion of reagent and condition are as follows:
(1) alkaline matter involved in specific embodiment:
Sodium carbonate, tetrasodium ethylenediamine tetraacetate;
(2) surfactant involved in specific embodiment:
Dodecyl diamyl the third sulfobetaines (code name:C12-5S);Octadecyldimethylamine base hydroxypropyl sulfobetaines (code name:C14-3S);Octadecyl Diethlycarboxy glycine betaine (code name:C18-2C);Octadecyl dipropyl carboxybetaine (code name:C18-3C);Octadecyldimethyl hydroxypropyl sulfobetaines (code name:C18-1S);Eicosyl dimethyl carboxyl is sweet Dish alkali (code name:C20-1C);Eicosyl dimethyl hydroxypropyl sulfobetaines (code name:C20-1S).Above surfactant is equal To make by oneself, wherein, in the ternary composite driving compositionss that C18-5S, C14-3S, C18-2C and C18-3C are provided for the present invention Surface active agent composition, C18-1S, C20-1C and C20-1S are with the surfactant for comparing.
(3) polymer involved in specific embodiment:
Star salt-tolerance (code name:StarPam), molecular weight 12,470,000;Polymer A N125 and MO4000 polymerizations Thing, the physical and chemical index of above-mentioned three kinds of polymer are as shown in table 1.
1 polymer physical and chemical index of table
Sequence number Polymer Molecular weight, ten thousand Degree of hydrolysis, % Solid content, %
1 Star salt-tolerance 1247 3.28 90.56
2 AN125 1040 3.76 85.12
3 MO4000 2070 26.80 90.50
(4) specific embodiment median surface tension test uses TX500C rotating interfacial tensimeters, surveys under formation temperature Determine 2h interfacial tension stationary values.
(5) Oil Reservoir Types being related in specific embodiment:
Block 1:45 DEG C of formation temperature, formation water salinity 4555mg/L;
Block 2:85 DEG C of formation temperature, formation water salinity 117000mg/L.
Embodiment 1
Present embodiments provide a kind of the third sulfobetaines of dodecyl diamyl (code name:C12-5S), it is concrete to prepare step Suddenly it is:
(1) aqueous solution of 3- bromopropyl sodium sulfonates is added in two n-amylamines at 10 DEG C, it is then anti-at a temperature of 35 DEG C Answer 3 hours, obtain mixed liquor;The mixed liquor concentration that this is obtained, is subsequently adding ethanol and is dissolved, filter off insoluble white while hot Solid, and by the filtrate crystallisation by cooling for obtaining, sucking filtration, recrystallization, obtain intermediate tertiary amine 3- (N, N- diamyl amino) propane sulfonic acid Sodium;
Wherein, the ratio of the amount of the material of the 3- bromopropyls sodium sulfonate and two n-amylamines is 1:2.5;
(2) intermediate tertiary amine 3- (N, the N- diamyl amino) propanesulfonates for obtaining step (1) and positive chlorinated dodecane are molten In n-butyl alcohol, then react 25 hours at a temperature of 110 DEG C, obtain crude product, add ethyl acetate and dissolved, and take advantage of Hot sucking filtration removes unreacted organic salt (3- bromopropyl sodium sulfonates), subsequently by the filtrate for obtaining concentration, evaporate into dry, obtain most End-product dodecyl the third sulfobetaines of diamyl;
Wherein, the amount of intermediate tertiary amine 3- (N, the N- diamyl amino) propanesulfonates and the material of positive chlorinated dodecane it Than for 1:0.9.
Embodiment 2
Present embodiments provide a kind of octadecyldimethylamine base hydroxypropyl sulfobetaines (code name:C14-3S), it is concrete to prepare Step is:
(1) aqueous solution of 3- chlorine-2-hydroxyl propanesulfonates is added in di-n-propylamine at 5 DEG C, then in 30 DEG C of temperature Lower reaction 2.5 hours, obtains mixed liquor;The mixed liquor concentration that this is obtained, is subsequently adding ethanol and is dissolved, filter off while hot not Molten white solid, and by the filtrate crystallisation by cooling for obtaining, sucking filtration, recrystallization, obtain intermediate tertiary amine 3- (N, N- dipropyl amino)- 2- hydroxypropionate sodiums, its nmr spectrum are as shown in Figure 1;
Wherein, the 3- chlorine-2-hydroxyls propanesulfonate and the ratio of the amount of the material of di-n-propylamine are 1:2.5;
(2) intermediate tertiary amine 3- (N, N- dipropyl the amino) -2- hydroxypropionate sodiums for step (1) being obtained and positive bromo ten Four alkane are dissolved in n-butyl alcohol, then at a temperature of 110 DEG C react 24 hours, obtain crude product, add ethyl acetate carry out it is molten Solution, and sucking filtration removes unreacted organic salt (3- chlorine-2-hydroxyl propanesulfonates) while hot, subsequently the filtrate for obtaining is concentrated, is waved It is sent to dry, obtains final product octadecyldimethylamine base hydroxypropyl sulfobetaines, its nmr spectrum is as shown in Figure 2;
Wherein, the thing of intermediate tertiary amine 3- (N, N- dipropyl the amino) -2- hydroxypropionate sodiums and positive bromotetradecane The ratio of the amount of matter is 1:0.9.
Embodiment 3
Present embodiments provide a kind of octadecyl Diethlycarboxy glycine betaine (code name:C18-2C), concrete preparation process For:
(1) aqueous solution of 2- sodium chloroacetates is added in diethylamine at 8 DEG C, is then reacted 3 hours at a temperature of 35 DEG C, Obtain mixed liquor;The mixed liquor concentration that this is obtained, is subsequently adding ethanol and is dissolved, filter off insoluble white solid while hot, and By the filtrate crystallisation by cooling for obtaining, sucking filtration, recrystallization, intermediate tertiary amine 3- (N, N- lignocaine) sodium acetate is obtained;
Wherein, the 2- sodium chloroacetates and the ratio of the amount of the material of diethylamine are 1:2.5;
(2) intermediate tertiary amine 3- (N, the N- lignocaine) sodium acetates for obtaining step (1) and positive chlorooctadecane are dissolved in In n-butyl alcohol, then react 30 hours at a temperature of 120 DEG C, obtain crude product, add ethyl acetate and dissolved, and while hot Sucking filtration removes unreacted organic salt (2- sodium chloroacetates), subsequently by the filtrate for obtaining concentration, evaporate into dry, obtain final product Octadecyl Diethlycarboxy glycine betaine;
Wherein, the ratio of intermediate tertiary amine 3- (N, the N- lignocaine) sodium acetates and the amount of the material of positive chlorooctadecane For 1:0.9.
Embodiment 4
Present embodiments provide a kind of octadecyl dipropyl carboxybetaine (code name:C18-3C), concrete preparation process For:
(1) aqueous solution of 2- sodium chloroacetates is added in di-n-propylamine at 8 DEG C, then at a temperature of 35 DEG C, reaction 3 is little When, obtain mixed liquor;The mixed liquor concentration that this is obtained, is subsequently adding ethanol and is dissolved, filter off insoluble white solid while hot, And by the filtrate crystallisation by cooling for obtaining, sucking filtration, recrystallization, obtain intermediate tertiary amine 3- (N, N- dipropyl amino) sodium acetate;
Wherein, the 2- sodium chloroacetates and the ratio of the amount of the material of di-n-propylamine are 1:2.5;
(2) intermediate tertiary amine 3- (N, the N- dipropyl amino) sodium acetates for obtaining step (1) and positive chlorooctadecane are dissolved in In n-butyl alcohol, then react 30 hours at a temperature of 120 DEG C, obtain crude product, add ethyl acetate and dissolved, and while hot Sucking filtration removes unreacted organic salt (2- sodium chloroacetates), subsequently by the filtrate for obtaining concentration, evaporate into dry, obtain final product Octadecyl dipropyl carboxybetaine;
Wherein, the ratio of intermediate tertiary amine 3- (N, the N- dipropyl amino) sodium acetates and the amount of the material of positive chlorooctadecane For 1:0.9.
Comparative example 1
This comparative example provides a kind of octadecyldimethyl hydroxypropyl sulfobetaines (code name:C18-1S), it is concrete to prepare Step is:
(1) aqueous solution of 3- chlorine-2-hydroxyl propanesulfonates is added in dimethylamine at 5 DEG C, then at a temperature of 30 DEG C Reaction 2.5 hours, obtains mixed liquor;The mixed liquor concentration that this is obtained, is subsequently adding ethanol and is dissolved, filter off while hot insoluble White solid, and by the filtrate crystallisation by cooling for obtaining, sucking filtration, recrystallization, obtain intermediate tertiary amine 3- (N, N- dimethylamino) -2- Hydroxypropionate sodium;
Wherein, the 3- chlorine-2-hydroxyls propanesulfonate and the ratio of the amount of the material of dimethylamine are 1:2.5;
(2) intermediate tertiary amine 3- (N, N- the dimethylamino) -2- hydroxypropionate sodiums for step (1) being obtained and positive bromo ten Eight alkane are dissolved in n-butyl alcohol, then at a temperature of 120 DEG C react 30 hours, obtain crude product, add ethyl acetate carry out it is molten Solution, and sucking filtration removes unreacted organic salt (3- chlorine-2-hydroxyl propanesulfonates) while hot, subsequently the filtrate for obtaining is concentrated, is waved It is sent to dry, obtains final product octadecyldimethyl hydroxypropyl sulfobetaines;
Wherein, the thing of intermediate tertiary amine 3- (N, N- the dimethylamino) -2- hydroxypropionate sodiums and positive bromo-octadecane The ratio of the amount of matter is 1:0.9.
Comparative example 2
This comparative example provides a kind of eicosyl dimethyl carboxybetaine (code name:C20-1C), concrete preparation process For;
(1) aqueous solution of 2- sodium chloroacetates is added in dimethylamine at 8 DEG C, is then reacted 3 hours at a temperature of 35 DEG C, Obtain mixed liquor;The mixed liquor concentration that this is obtained, is subsequently adding ethanol and is dissolved, filter off insoluble white solid while hot, and By the filtrate crystallisation by cooling for obtaining, sucking filtration, recrystallization, intermediate tertiary amine 3- (N, N- dimethylamino) sodium acetate is obtained;
Wherein, the 2- sodium chloroacetates and the ratio of the amount of the material of dimethylamine are 1:2.5;
(2) intermediate tertiary amine 3- (N, the N- dimethylamino) sodium acetates for obtaining step (1) and positive bromo eicosane are dissolved in In n-butyl alcohol, then react 28 hours at a temperature of 120 DEG C, obtain crude product, add ethyl acetate and dissolved, and while hot Sucking filtration removes unreacted organic salt (2- sodium chloroacetates), subsequently by the filtrate for obtaining concentration, evaporate into dry, obtain final product Eicosyl dimethyl carboxybetaine;
Wherein, the ratio of intermediate tertiary amine 3- (N, the N- dimethylamino) sodium acetates and the amount of the material of positive bromo eicosane For 1:0.9.
Comparative example 3
Present embodiments provide a kind of eicosyl dimethyl hydroxypropyl sulfobetaines (code name:C20-1S), it is concrete to prepare Step is:
(1) aqueous solution of 3- chlorine-2-hydroxyl propanesulfonates is added in dimethylamine at 5 DEG C, then at a temperature of 30 DEG C Reaction 2.5 hours, obtains mixed liquor;The mixed liquor concentration that this is obtained, is subsequently adding ethanol and is dissolved, filter off while hot insoluble White solid, and by the filtrate crystallisation by cooling for obtaining, sucking filtration, recrystallization, obtain intermediate tertiary amine 3- (N, N- dimethylamino) -2- Hydroxypropionate sodium;
Wherein, the 3- chlorine-2-hydroxyls propanesulfonate and the ratio of the amount of the material of dimethylamine are 1:2.5;
(2) intermediate tertiary amine 3- (N, N- the dimethylamino) -2- hydroxypropionate sodiums for step (1) being obtained and positive bromo two Ten alkane are dissolved in n-butyl alcohol, then at a temperature of 120 DEG C react 30 hours, obtain crude product, add ethyl acetate carry out it is molten Solution, and sucking filtration removes unreacted organic salt (3- chlorine-2-hydroxyl propanesulfonates) while hot, subsequently the filtrate for obtaining is concentrated, is waved It is sent to dry, obtains final product eicosyl dimethyl hydroxypropyl sulfobetaines;
Wherein, the thing of intermediate tertiary amine 3- (N, N- the dimethylamino) -2- hydroxypropionate sodiums and positive bromo eicosane The ratio of the amount of matter is 1:0.9.
Embodiment 5
A kind of ternary composite driving compositionss A are present embodiments provided, the component of ternary composite driving compositionss A is:
0.2wt% sodium carbonate, 0.05wt% octadecyl dipropyl carboxybetaines (4 product of embodiment), 0.2wt% stars Shape salt-tolerance, and the water (the stratum water of block 1) of surplus.
The preparation process of ternary composite driving compositionss is:Will be sodium carbonate, octadecyl dipropyl carboxybetaine, star resistance to Warm salt tolerant polymer and water mix homogeneously, stirring obtain ternary composite driving compositionss A after a period of time.
Embodiment 6
A kind of ternary composite driving compositionss B are present embodiments provided, the component of ternary composite driving compositionss B is:
0.2wt% sodium carbonate, 0.05wt% dodecyls the third sulfobetaines of diamyl (1 product of embodiment), 0.2wt% Star salt-tolerance, and the water (the stratum water of block 1) of surplus.
The preparation process of ternary composite driving compositionss is:Will be sodium carbonate, octadecyl dipropyl carboxybetaine, star resistance to Warm salt tolerant polymer and water mix homogeneously, stirring obtain ternary composite driving compositionss B after a period of time.
Embodiment 7
A kind of ternary composite driving compositionss C are present embodiments provided, the component of ternary composite driving compositionss C is:
0.2wt% tetrasodium ethylenediamine tetraacetates, 0.05wt% octadecyldimethylamine base hydroxypropyl sulfobetaines (embodiments 2 Product), 0.2wt% star salt-tolerances, and the water (the stratum water of block 2) of surplus.
The preparation process of ternary composite driving compositionss is:By tetrasodium ethylenediamine tetraacetate, octadecyldimethylamine base hydroxypropyl sulphur Base glycine betaine, star salt-tolerance and water mix homogeneously, stirring obtain ternary composite driving compositionss C after a period of time.
Comparative example 4
This comparative example provides a kind of three-component compound system solution M, and the component of the three-component compound system solution is:
0.2wt% tetrasodium ethylenediamine tetraacetates, 0.05wt% octadecyldimethyl hydroxypropyl sulfobetaines (comparative examples 1 Product), 0.2wt% star salt-tolerances, and the water (the stratum water of block 2) of surplus.
The preparation process of ternary composite driving compositionss is:By tetrasodium ethylenediamine tetraacetate, octadecyldimethyl hydroxypropyl sulphur Base glycine betaine, star salt-tolerance and water mix homogeneously, stirring obtain three-component compound system solution M after a period of time.
Embodiment 8
A kind of ternary composite driving compositionss D are present embodiments provided, the component of ternary composite driving compositionss D is:
0.2wt% tetrasodium ethylenediamine tetraacetates, 0.2wt% octadecyldimethylamine bases hydroxypropyl sulfobetaines (produce by embodiment 2 Product), 0.2wt% star salt-tolerances, and the water (the stratum water of block 2) of surplus.
The preparation process of ternary composite driving compositionss is:By tetrasodium ethylenediamine tetraacetate, octadecyldimethylamine base hydroxypropyl sulphur Base glycine betaine, star salt-tolerance and water mix homogeneously, stirring obtain ternary composite driving compositionss D after a period of time.
Embodiment 9
A kind of ternary composite driving compositionss are present embodiments provided, the component of the ternary composite driving compositionss is:
0.2wt% tetrasodium ethylenediamine tetraacetates, 0.2wt% octadecyldimethylamine bases hydroxypropyl sulfobetaines (produce by embodiment 2 Product), 0.2wt% polymer As N125, and the water (the stratum water of block 2) of surplus.
The preparation process of ternary composite driving compositionss is:By tetrasodium ethylenediamine tetraacetate, octadecyldimethylamine base hydroxypropyl sulphur Base glycine betaine, polymer A N125 and water mix homogeneously, stirring obtain ternary composite driving compositionss E after a period of time.
Embodiment 10
A kind of ternary composite driving compositionss are present embodiments provided, the component of the ternary composite driving compositionss is:
0.2wt% tetrasodium ethylenediamine tetraacetates, 0.2wt% octadecyldimethylamine bases hydroxypropyl sulfobetaines (produce by embodiment 2 Product), 0.2wt%MO4000 polymer, and the water (the stratum water of block 2) of surplus.
The preparation process of ternary composite driving compositionss is:By tetrasodium ethylenediamine tetraacetate, octadecyldimethylamine base hydroxypropyl sulphur Base glycine betaine, MO4000 polymer and water mix homogeneously, stirring obtain ternary composite driving compositionss F after a period of time.
Comparative example 5
This comparative example provides a kind of three-component compound system solution N, and the component of the three-component compound system solution is:
0.2wt% tetrasodium ethylenediamine tetraacetates, 0.2wt% octadecyldimethyls hydroxypropyl sulfobetaines (produce by comparative example 1 Product), 0.2wt% star salt-tolerances, and the water (the stratum water of block 2) of surplus.
The preparation process of ternary composite driving compositionss is:By tetrasodium ethylenediamine tetraacetate, octadecyldimethyl hydroxypropyl sulphur Base glycine betaine, star salt-tolerance and water mix homogeneously, stirring obtain three-component compound system solution N after a period of time.
Test case 1
This test case provides octadecyldimethylamine base hydroxypropyl sulfobetaines (2 product of embodiment) and its isomers Octadecyldimethyl hydroxypropyl sulfobetaines (1 product of comparative example), octadecyl Diethlycarboxy glycine betaine (produce by embodiment 3 Product) and eicosyl dimethyl carboxybetaine (2 product of comparative example) solubility property test experiments, wherein, the octadecane Base Diethlycarboxy glycine betaine and eicosyl dimethyl carboxybetaine also isomerss each other.
This test case reflects its solubility property, critical micelle concentration by the critical micelle concentration of measure surfactant More low then dissolubility is poorer, conversely, the more high then dissolubility of critical micelle concentration is better.This test case adopts distilled water at 30 DEG C Octadecyldimethylamine base hydroxypropyl sulfobetaines, octadecyldimethyl hydroxypropyl sulfobetaines are tested respectively by hanging piece method The critical micelle concentration of alkali, octadecyl Diethlycarboxy glycine betaine and eicosyl dimethyl carboxybetaine, and will be described The critical micelle concentration of octadecyldimethylamine base hydroxypropyl sulfobetaines and the critical micelle concentration of its isomerss glycine betaine Contrasted, its result is as shown in table 2:
2 glycine betaine isomerss critical micelle concentration of table is contrasted
Surfactant Critical micelle concentration/(molL-1)
Octadecyldimethylamine base hydroxypropyl sulfobetaines 5.23×10-5
Octadecyldimethyl hydroxypropyl sulfobetaines 2.16×10-6
Octadecyl Diethlycarboxy glycine betaine 1.05×10-6
Eicosyl dimethyl carboxybetaine Dissolubility is too little, does not measure
As shown in Table 2, its isomers ten of the ratio of the CMC of octadecyldimethylamine base hydroxypropyl sulfobetaines Big 1 order of magnitude of critical micelle concentration of eight alkyl dimethyl hydroxypropyl sulfobetaines;And for eicosyl dimethyl carboxyl For glycine betaine, the critical micelle concentration of its isomerss octadecyl Diethlycarboxy glycine betaine is 1.05 × 10-6mol· L-1Illustrate that still there is certain dissolubility.The experimental data of above-mentioned table 2 shows:For the surface activity of same carbon number hydrophobic group Agent, the surfactant of branched structure with the critical micelle concentration higher than its corresponding linear chain structure isomers, from And there is more preferable water solublity;In the case of hydrophobic group carbon number identical, the Radix Betae that the long-chain with branched structure, short chain are combined Alkali surfactant and the conventional linear alkyl dimethyl betaine surfactant isomerism with identical hydrophobic group carbon number Body phase ratio, with relatively large critical micelle concentration, bigger dissolubility and practicality, so as to can more meet practical application Need.
Test case 2
This test case provides embodiment 5, the interface performance test experiments of 6 ternary composite driving compositionss of embodiment.
Respectively to embodiment 5 (ternary composite driving compositionss A) and 6 (ternary composite driving compositionss B) product of embodiment and area Interfacial tension between 1 crude oil of block.Test result is shown in Table 3.
Interfacial tension between 3 three-component compound system solution of table and crude oil
As shown in Table 3, evaluated comprising two long short chain beet alkali surface activators (C18-3C and C12-5S) with it is poly- The three-component compound system solution of compound composition can reach ultralow interfacial tension with 1 crude oil of block, show excellent interface characteristics Can, illustrate that the long short chain beet alkali surface activator of present invention preparation improves recovery ratio field in chemical flooding and has very big application Potentiality.And under same experiment condition, as the dissolubility of eicosyl dimethyl hydroxypropyl sulfobetaines is too small, cannot obtain The ternary composite driving compositionss similar with 5 components are implemented are obtained, thus its interfacial tension cannot be determined.
Test case 3
This test case provides embodiment 7, the interface performance contrast experiment of 4 product of comparative example.
Respectively to embodiment 7 (ternary composite driving compositionss C) and 4 (three-component compound system solution M) product of comparative example and area Interfacial tension between 2 crude oil of block.Test result is shown in Table 4.
Interfacial tension between 4 three-component compound system of table and crude oil
As shown in Table 4, the equilibrium interfacial tension between octadecyldimethylamine base hydroxypropyl sulfobetaines and crude oil reaches ultralow Scope (10-3The mN/m orders of magnitude and following) and between its isomerss octadecyldimethyl hydroxypropyl sulfobetaines and crude oil Equilibrium interfacial tension only reaches 10-2The mN/m orders of magnitude.
As can be seen here, the hydrophobic group end of the above-mentioned long short chain beet alkali surface activator with branched structure has multiple Methyl group, can more effectively reduce interfacial tension, the long short chain compared with the single straight chain isomerss with carbon number Beet alkali surface activator can reach ultralow interfacial tension, oil-water interfaces excellent performance under the conditions of alkali-free with crude oil.
Test case 4
This test case provides ternary composite driving compositionss D (8 product of embodiment), ternary composite driving compositionss E (embodiment 9 products) and ternary composite driving compositionss F (10 product of embodiment) viscosity test experiment, it is specific as follows:
Viscosity test to ternary composite driving compositionss D, ternary composite driving compositionss E and ternary composite driving compositionss F.
Using U.S.'s Brookfield LVDVII rotational viscometers, from 0# rotors, rotating speed is 6RPM for viscosity test, is surveyed Examination temperature is 95 DEG C, and as shown in table 5, viscosity unit is mPas to experimental result.
5 Na of table4EDTA/C14-3S/ polymer ternary compound system solution viscosity test results
As can be seen from Table 5, the viscosity highest of tri compound compositionss D prepared with star salt-tolerance, says It is bright under the experiment condition, the adhesion-promoting performance of star salt-tolerance is optimal.
Test case 5
This test case provides ternary composite driving compositionss D (5 product of embodiment) and conventional three-way compound system solution N The oil displacement efficiency evaluation experimental of (5 product of comparative example), it is specific as follows:
This test case have rated ternary composite driving compositionss D using core oil-displacement test survey and conventional three-way compound system is molten The oil displacement efficiency of liquid N.Method of testing launches core oil-displacement test evaluation with reference to petroleum industry standard SY/T 6424-2000.
Oil displacement experiment program is:Rock core vacuumizing saturation stratum water-measure water phase permeability-saturation crude oil makes constraint Water-carry out water drive is to aqueous up to 98%-injection ternary composite driving product slug-subsequently turn stratum water drive to aqueous up to 98%. Experimental temperature is 90 DEG C.Core oil-displacement test result is as shown in table 6.
6 ternary composite driving compositionss oil displacement efficiency evaluation result of table
As shown in Table 6:After water drive terminates, using the conventional three-way of conventional octadecyldimethyl hydroxypropyl sulfobetaines Compound system solution N improves recovery ratio 15.72%;Under substantially consistent experiment condition, using comprising octadecyldimethylamine Ternary composite driving compositionss D of base hydroxypropyl sulfobetaines improve recovery ratio and reach 20.89%.It can be seen that, carried using the present invention For the ternary composite driving compositionss ratio comprising long short chain glycine betaine it is multiple using the conventional three-way comprising conventional dimethyl betaine Close system solution and can obtain higher oil displacement efficiency.Therefore, using present invention offer comprising octadecyldimethylamine base hydroxypropyl sulphur The ternary composite driving compositionss of base glycine betaine carry out ternary oil displacement operation advantageously.

Claims (10)

1. a kind of ternary composite driving compositionss, by percentage to the quality, the component for preparing the ternary composite driving compositionss includes:
Alkaline matter 0.03wt%-3.0wt%, surfactant 0.05wt%-0.30wt%, polymer 0.05wt%- 0.30wt%, and the water of surplus;
Wherein, the surfactant is the combination of one or more in the long short chain glycine betaine with structure shown in formula I:
In the formula I, R is C10-C24Straight chained alkyl or branched alkyl, R1For C2-C5Straight chained alkyl, R2For C2-C5It is straight Alkyl group, X are-CH2COO-、-CH2CH2SO3 -、-CH2CH2CH2SO3 -Or-CH2CHOHCH2SO3 -
2. ternary composite driving compositionss according to claim 1, wherein, the R is straight chain or branched-C10H21、- C11H23、-C12H25、-C13H27、-C14H29、-C15H31、-C16H33、-C18H37、-C20H41、-C22H45Or-C24H49
The R1For-the C of straight chain2H5、-C3H7、-C4H9Or-C5H11;The R2For-the C of straight chain2H5、-C3H7、-C4H9Or-C5H11
3. ternary composite driving compositionss according to claim 1, wherein, the long short chain glycine betaine is dodecyl diethyl Base hydroxypropyl sulfobetaines, the third sulfobetaines of dodecyl diamyl, myristyl ethyl pentyl group carboxybetaine, the tetradecane Base dipropyl hydroxypropyl sulfobetaines, cetyl dipropyl carboxybetaine, cetyl ethyl-butyl second sulfobetaines, Octadecyl Diethlycarboxy glycine betaine or octadecyl dipropyl hydroxypropyl sulfobetaines.
4. ternary composite driving compositionss according to claim 1 and 2, wherein, the R1And R2It is asynchronously C2H5
5. ternary composite driving compositionss according to claim 1, wherein, the polymer is hydrophobic associated polymer, star Shape salt-tolerance or partially hydrolyzed polyacrylamide (PHPA) are birdsed of the same feather flock together compound;
Preferably, the mean molecule quantity of the polymer is 12,000,000-3,500 ten thousand.
6. ternary composite driving compositionss according to claim 4, wherein, the degree of hydrolysis of the star salt-tolerance For 1%-5%;The degree of hydrolysis of the partially hydrolyzed polyacrylamide (PHPA) is 20%-30%;
Preferably, the star salt-tolerance is the star polymer for preparing in CN201010565501.6;It is described to dredge Water association polymer is polymer A N125 of French Snf S. A. S.'s production, and the partially hydrolyzed polyacrylamide (PHPA) is Mitsubishi The polymer MO4000 of chemical conversion company production.
7. ternary composite driving compositionss according to claim 1, wherein, the alkaline matter include trimethylamine, triethylamine, In tetrasodium ethylenediamine tetraacetate, sodium carbonate, sodium bicarbonate, sodium hydroxide, potassium hydroxide, sodium silicate, sodium tetraborate and sodium phosphate The combination of one or more;
Preferably, the alkaline matter is sodium carbonate, sodium tetraborate or tetrasodium ethylenediamine tetraacetate.
8. ternary composite driving compositionss according to any one of claim 1-7, wherein, the consumption of the alkaline matter is 0.05wt%-0.20wt%, the consumption of the surfactant is 0.10wt%-0.30wt%, and the consumption of the polymer is 0.10wt%-0.30wt%.
9. ternary composite driving compositionss according to any one of claim 1-7, wherein, the consumption of the alkaline matter is 0.20wt%, the consumption of the surfactant is 0.20wt%, and the consumption of the polymer is 0.20wt%.
10. application of the ternary composite driving compositionss described in any one of claim 1-9 in chemical flooding.
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