CN101279938A - Alkyl phenol sulfonic polyethenoxy ether sodium monosulfosuccinates and preparation thereof - Google Patents
Alkyl phenol sulfonic polyethenoxy ether sodium monosulfosuccinates and preparation thereof Download PDFInfo
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Abstract
The invention relates to alkylphenol sulfonic polyoxyethylene ether succinate monoester sulfonate and the preparation method thereof, mainly aiming at solving the problems that current oil displacement agent containing surfactant is poor in oil displacement efficiency under high temperature with the existence of high salt and that the oil displacement agent contains alkali and causes damages to the stratum and the oil field and erodes the equipment and the pipes, which results in high production cost. The invention adopts alkylphenol sulfonic polyoxyethylene ether succinate monoester sulfonate with general molecular formula (I)to solve the problem; wherein M is alkali metal; R is alkyl from C1-C22; n is any integer from 1 and 20. The alkylphenol sulfonic polyoxyethylene ether succinate monoester sulfonate can be applied to the production of tertiary oil recovery in oil fields.
Description
Technical field
The present invention relates to a kind of alkyl phenol sulfonic polyethenoxy ether sodium monosulfosuccinates and preparation method thereof.
Background technology
China's main oilfield is through once with behind the secondary recovery having entered high water-cut stage, crude production rate descends year by year, for improving oil recovery factor, develop remaining reserves to greatest extent, tertiary oil recovery technology is guaranteeing to have brought into play important effect aspect the oilfield stable production high yield.Ternary composite driving (alkali-polymkeric substance-tensio-active agent) technology of wherein using tensio-active agent be owing to still can increase substantially oil displacement efficiency under the situation of low surfactant consumption, so it has become the new technology at economic and technical all very successful raising oil recovery factor.Its dominant mechanism is: after the oil field enters high water-cut stage, surplus oil with discontinuous oil film by trap in the hole of reservoir rocks, two main power that act on the oil droplet are viscaps, if select suitable surfactant system for use, reduce the interfacial tension between profit, make interfacial tension between the oil bearing reservoir profit from the lower or ultralow value (10 of 20～30 milli ox/Mi Jiangzhi
-3～10
-4Milli ox/rice), just can reduce the resistance that the oil droplet distortion was brought when surplus oil was moved, thereby significantly improve oil displacement efficiency.Tensio-active agent improves oil recovery factor and depends mainly on sweep efficiency and the oil displacement efficiency of tensio-active agent in oil reservoir.Promptly
Er＝Eυ·Ed
In the formula: Er represents recovery ratio, %; E υ represents sweep efficiency, %; Ed represents oil displacement efficiency, %.Therefore, improving Er must start with from improving Ev and Ed.Promoting agent (comprising tensio-active agent and alkali) has effects such as the oil water interfacial tension of reduction, can improve Ed (oil displacement efficiency).This effect can be described by combined effect parameter hollow billet number (N):
Ed∝N
N=motivating force/viscous force ∝ μ υ/Y
Ow
In the formula: μ represents to inject phase viscosity; υ represents to inject the phase flow stream velocity; Y
OwInterfacial tension between the expression profit.Practice proves: reduce residual oil saturation effectively, the hollow billet number must be improved 3～4 orders of magnitude.Because oil reservoir injection rate and pressure are limited, it is not enough therefore depending merely on raising μ and υ, but can be with oil water interfacial tension Y
OwReduce by 3 or the higher order of magnitude, thereby improve the hollow billet number greatly and Ed (oil displacement efficiency) is significantly improved, this also is the main oil-displacement mechanism of promoting agent.And to improve sweep efficiency, and main way is the mobility that reduces displacing fluid, this point can realize by adding polymkeric substance increase displacing fluid viscosity.Adopt in the operation three, utilization ASP ternary composite driving (tensio-active agent/alkali/polymkeric substance) flooding system, can make the ultra low interfacial tension between profit that the displacement of reservoir oil (Ed) rate of imitating is increased by adding tensio-active agent, inject fluid viscosity raising sweep efficiency (Ev) by injection of polymer to increase, inject alkali to reduce the absorption of tensio-active agent.Make full use of the useful synergistic combination effect of ASP, improve oil recovery factor (Er).
At present, in tertiary oil recovery, the tensio-active agent that generally uses contains the tensio-active agent of phenyl ring as sulfonated petro-leum, alkylbenzene sulfonate or other.Document CN1458219A discloses the pure binary ultra low interfacial tension of the surfactant polymer combination flooding prescription that a kind of tertiary oil recovery is used, use therein tensio-active agent is sulfonated petro-leum or is the complexed surfactant that host adds thinner and other surfactant compound with the sulfonated petro-leum, the weight percent of its component is a sulfonated petro-leum 50～100%, alkylsulfonate 0～50%, carboxylate salt 0～50%, alkylaryl sulphonate 0～35%, low-carbon alcohol 0～20%.These tensio-active agents have the source extensively, and no matter quantity advantage big, that price is low for common oil reservoir, is combination flooding or single surfactant flooding, all has the mass-producing product, are also obtaining ideal effect aspect the raising recovery ratio.But deep day by day along with the oilfield exploitation degree, the oil recovery stratum is more and more darker, and the use temperature of tensio-active agent is more and more higher, the water-mineralizing degree is also more and more higher.The surfactant system of the above successful Application in common oil reservoir (one, two class oil reservoirs), under the high salt of high temperature (formation temperature is greater than 80 ℃) (more than salinity 20000 mg/litre) condition (three class oil reservoirs), because chemical structure malleable, compound system poor stability produce serious chromatographic separation in oil displacement process, cause the oil displacement efficiency variation.In order to reduce oil/water termination tension force to a greater extent, often add the alkali of high density, as sodium hydroxide, yellow soda ash etc.Alkali can generate new tensio-active agent on the spot with the reaction of acidic substance in the crude oil, and adds tensio-active agent and plays synergistic effect.Document CN1439689A discloses a kind of ternary composite oil-displacing system and application thereof of alkali, mixed surfactant and polymer, and the alkali of wherein selecting for use is Na
2CO
3But in use, alkali not only brings huge injury to stratum and oil well etc., and equipment and corrosive pipeline are serious, spends substantial contribution in maintenance, maintenance; And, have to improve greatly the working concentration of polymkeric substance for reaching required viscosity because alkali can seriously reduce the viscosity and the visco-elasticity of polymkeric substance, the oil recovery comprehensive cost is improved.
Summary of the invention
One of technical problem to be solved by this invention is that the oil-displacing agent that contains tensio-active agent in the prior art exists under the high temperature and high salt condition oil displacement efficiency poor, simultaneously owing to contain alkali, injury is brought on stratum and oil well, etching apparatus and pipeline, the problem that production cost is high provides a kind of new alkyl phenol sulfonic polyethenoxy ether sodium monosulfosuccinates.The surfactant composition that contains alkyl phenol sulfonic polyethenoxy ether sodium monosulfosuccinates still can form 10 with crude oil under alkali-free, high temperature and high salt condition
-3～10
-4Milli ox/rice ultra low interfacial tension improves the high temperature and high salt oil deposit recovery ratio.Two of technical problem to be solved by this invention provides the preparation method of alkyl phenol sulfonic polyethenoxy ether sodium monosulfosuccinates.This method has the advantages that technology is simple, equipment requirements is low, be easy to produce.
For one of solving the problems of the technologies described above, the technical solution used in the present invention is as follows: a kind of alkyl phenol sulfonic polyethenoxy ether sodium monosulfosuccinates, and its general molecular formula is:
Wherein M is a basic metal; R is C
1～C
22Alkyl; N is any one integer in 1～20.
In the technique scheme, the basic metal preferred version is sodium or potassium, and more preferably scheme is for being selected from sodium; The R preferred version is for being selected from C
4～C
15Alkyl, more preferably scheme is for being selected from C
8～C
12Alkyl; The n preferred version is any one integer in 4～15, and more preferably scheme is any one integer in 5～10.
For solve the problems of the technologies described above two, the technical solution used in the present invention is as follows: a kind of preparation method of alkyl phenol sulfonic polyethenoxy ether sodium monosulfosuccinates may further comprise the steps:
A) alkylphenol and oxyethane are 85～160 ℃ in temperature of reaction, and pressure is under 0～0.40MPa gauge pressure condition, under catalyst action, react alkylphenol polyoxyethylene; The alkyl of wherein said alkylphenol is the alkyl that contains 1～22 carbon atom; The mol ratio of oxyethane and alkylphenol is 1～20: 1; Described catalyzer is the basic cpd of calcium, and consumption is 0.3～2% of an alkylphenol weight;
B) the step a) synthetic alkylphenol polyoxyethylene and the vitriol oil are under 40～60 ℃ of conditions in temperature of reaction, react to get alkyl phenol sulfonic polyoxyethylene ether in 1～10 hour; Wherein the mol ratio of the vitriol oil and alkylphenol polyoxyethylene is 2～5: 1;
C) step b) synthetic alkyl phenol sulfonic polyoxyethylene ether and MALEIC ANHYDRIDE are in mol ratio 1: 1～1.1, temperature of reaction is under 100～130 ℃ of conditions, reacted 3～5 hours, add sulphonating agent again, reacted 1～5 hour down at 70～90 ℃, with the alkaline solution neutralization that contains sodium or potassium, get alkyl phenol sulfonic polyethenoxy ether sodium monosulfosuccinates at last; Wherein said sulphonating agent is a S-WAT, and the mol ratio of MALEIC ANHYDRIDE and S-WAT is 1: 1～1.1.
In the technique scheme, a) the temperature of reaction preferable range is 140～160 ℃ in the step, and the pressure preferable range is 0.20～0.40MPa gauge pressure, and the catalyst levels preferable range is 0.8～1.5% of an alkylphenol weight; B) the temperature of reaction preferable range is 40～45 ℃ in the step,, the reaction times preferable range is 2～5 hours.The alkyl preferred version of alkylphenol is the alkyl that contains 4～15 carbon atoms, and more preferably scheme is the alkyl that contains 8～12 carbon atoms.
Alkyl phenol sulfonic polyethenoxy ether sodium monosulfosuccinates of the present invention can pass through the infrared analysis spectral characterization, and sweep limit is 4000～400cm
-1In wave number is 3100～3000cm
-1, 1609cm
-1, 1512cm
-1, 830cm
-1The place is the absorption characteristic peak of phenyl ring, is 1120cm in wave number
-1The place is the characteristic peak of C-O-C key, is 1350cm in wave number
-1The place is the characteristic peak of polyethylene oxide, at wave number 2840～3000cm
-1The place is the characteristic peak of chain alkyl, is 1251cm in wave number
-1, 680cm
-1The place is for sulfonic characteristic peak on the phenyl ring, at wave number 1186cm
-1The place is the characteristic peak of C-O-C key, at wave number 1043cm
-1The place is the charateristic avsorption band of C=O key.
Alkyl phenol sulfonic polyethenoxy ether sodium monosulfosuccinates of the present invention can be used in the surfactant composition of tertiary oil recovery.This surfactant composition comprises following component by weight percentage:
1) 0.01～5.0% alkyl phenol sulfonic polyethenoxy ether sodium monosulfosuccinates;
2) 0.01～3.0% polymkeric substance;
3) water of surplus;
Wherein said polymkeric substance is at least a in polyacrylamide, modified polyacrylamide or the xanthan gum.
In the technique scheme, the water preferred version is that clear water or sewage are injected in the oil field; By weight percentage, the consumption preferable range of alkyl phenol sulfonic polyethenoxy ether sodium monosulfosuccinates is 0.1～1.0%, and more preferably scope is 0.1～0.3%; The consumption preferable range of polymkeric substance is 0.05～0.5%; More preferably scope is 0.1～0.2%.
The surfactant composition that alkyl phenol sulfonic polyethenoxy ether sodium monosulfosuccinates of the present invention is used for tertiary oil recovery has the following advantages:
(1) can alkali-free in the composition.The surfactant composition that contains alkyl phenol sulfonic polyethenoxy ether sodium monosulfosuccinates still can form 10 with underground crude oil under the alkali-free condition
-3～10
-4The ultra low interfacial tension of milli ox/rice has not only overcome when using at the scene high concentration alkali to the huge injury of stratum and oil well, and has met environmental protection requirement, and equipment is not had injury, can reach the oil displacement efficiency of the best;
(2) heatproof, salt tolerant.The surfactant composition that contains alkyl phenol sulfonic polyethenoxy ether sodium monosulfosuccinates in formation temperature greater than 90 ℃, salinity greater than 30000 mg/litre, Ca
2+, Mg
2+Concentration is still can form 10 with underground crude oil under the condition of 0～1000 mg/litre
-3～10
-4The ultra low interfacial tension of milli ox/rice improves oil recovery factor 16.8%, has obtained better technical effect.
The present invention is further elaborated below by embodiment.
Figure of description
Fig. 1 is the infrared analysis spectrum of alkyl phenol sulfonic polyethenoxy ether sodium monosulfosuccinates.
Wherein, wave number is 3100～3000cm
-1, 1609cm
-1, 1512cm
-1, 830cm
-1The place is the absorption characteristic peak of phenyl ring, and wave number is 1120cm
-1The place is the characteristic peak of C-O-C key, is 1350cm in wave number
-1The place is the characteristic peak of polyethylene oxide, wave number 2840～3000cm
-1The place is the characteristic peak of chain alkyl, is 1251cm in wave number
-1, 680cm
-1The place is sulfonic characteristic peak on the phenyl ring, wave number 1186cm
-1The place is the characteristic peak of C-O-C key, at wave number 1043cm
-1The place is the charateristic avsorption band of C=O key.
Embodiment
[embodiment 1]
Nonyl phenol sulfonic polyethenoxy (7) ether mono succinate sodium sulfonate
(1) in the reactor that condensing works, whipping appts and gas distributor are housed, adds 110 gram (0.5 mole) nonylphenols and 2.2 gram calcium oxide, when logical nitrogen limit, limit is heated to 135 ℃, add 22 gram water, stirring reaction 1 hour.First then normal pressure steams water, and the back decompression vacuumizes steaming in 20 minutes in 140 ℃ and removes moisture under 20 mmhg vacuum, and this solution is cooled to 80 ℃, slowly drips the vitriol oil of catalyst neutralisation theoretical acid amount 20 weight %.System temperature is heated to 85～90 ℃, open vacuum system, dehydration is 1 hour under high vacuum, then with nitrogen purging 3～4 times with the air in the system of removing, then the system temperature of reaction is transferred to 150 ℃ and slowly feed 157 gram oxyethane, control pressure≤0.40MPa carries out alkoxylation; Reaction is used the nitrogen purging system after finishing, and removes unreacted oxyethane, and cooling post neutralization, decolouring, filtration, dehydration get Nonyl pheno (7) ether.
(2) with step (1) synthetic nonyl phenol phenol polyethenoxy (7) ether 264 grams, add in the reactor that reflux condensate device, thermometer, agitator are housed and be warming up to 45 ℃, stir the vitriol oil 98 grams that slowly drip 98 weight % down, 1.5 add in hour, continue reaction 2 hours, finish reaction, get brown viscous liquid through aftertreatment and be nonyl phenol sulfonic polyethenoxy (7) ether.
(3) in the esterification device of being furnished with stirring, temperature control unit, add nonyl phenol sulfonic polyethenoxy (7) ether 165 grams, MALEIC ANHYDRIDE 27 grams, feed nitrogen, stirring also is heated to 120 ℃, esterification 4 hours, the sodium sulfite aqueous solution that adds 100 grams, 30 weight % again, 80 ℃ of down reactions 2 hours, at last with aqueous sodium hydroxide solution neutralize nonyl phenol sulfonic polyethenoxy (7) ether mono succinate sodium sulfonate.
To synthetic nonyl phenol sulfonic polyethenoxy (7) ether mono succinate sodium sulfonate, use U.S. Nicolet-5700 infrared spectrometer, adopt liquid-film method to carry out Infrared spectroscopy (sweep limit 4000～400cm
-1), have characteristic peak shown in Figure 1.
[embodiment 2]
Synthesizing of 4-dodecylphenol sulfonic polyethenoxy (7) ether mono succinate sodium sulfonate
(1) in the reactor that condensing works, whipping appts and gas distributor are housed, adds 131 gram (0.5 mole) dodecyl phenols and 2.3 gram calcium oxide, when logical nitrogen limit, limit is heated to 135 ℃, add 22 gram water, stirring reaction 1 hour.First then normal pressure steams water, and the back decompression vacuumizes steaming in 20 minutes in 140 ℃ and removes moisture under 20 mmhg vacuum, and this solution is cooled to 80 ℃, slowly drips the vitriol oil of catalyst neutralisation theoretical acid amount 20 weight %.System temperature is heated to 85～90 ℃, open vacuum system, dehydration is 1 hour under high vacuum, then with nitrogen purging 3～4 times with the air in the system of removing, then the system temperature of reaction is transferred to 150 ℃ and slowly feed 155 gram oxyethane, control pressure≤0.40MPa carries out alkoxylation; Reaction is used the nitrogen purging system after finishing, and removes unreacted oxyethane, and cooling post neutralization, decolouring, filtration, dehydration get dodecyl phenol polyethenoxy (7) ether.
(2) with step (1) institute's synthetic dodecyl phenol polyethenoxy (7) ether 285 grams, add in the reactor that reflux condensate device, thermometer, agitator are housed and be warming up to 45 ℃, stir the vitriol oil 100 grams that slowly drip 98 weight % down, 1.5 add in hour, continue reaction 2 hours, finish reaction, get brown viscous liquid through aftertreatment and be 4-dodecylphenol sulfonic polyethenoxy (7) ether.
(3) in the esterification device of being furnished with stirring, temperature control unit, add 4-dodecylphenol sulfonic polyethenoxy (7) ether 177 grams, MALEIC ANHYDRIDE 30 grams, feed nitrogen, stirring also is heated to 120 ℃, esterification 4 hours, the sodium sulfite aqueous solution that adds 100 grams, 30 weight % again, 80 ℃ of down reactions 2 hours, at last with aqueous sodium hydroxide solution neutralize 4-dodecylphenol sulfonic polyethenoxy (7) ether mono succinate sodium sulfonate.
To synthetic 4-dodecylphenol sulfonic polyethenoxy (7) ether mono succinate sodium sulfonate, use U.S. Nicolet-5700 infrared spectrometer, adopt liquid-film method to carry out Infrared spectroscopy (sweep limit 4000～400cm
-1), have characteristic peak shown in Figure 1.
[embodiment 3]
Synthesizing of nonyl phenol sulfonic polyethenoxy (10) ether mono succinate sodium sulfonate
(1) in the reactor that condensing works, whipping appts and gas distributor are housed, adds 220 gram (1.0 moles) nonylphenols and 2.0 gram calcium oxide, when logical nitrogen limit, limit is heated to 135 ℃, add 22 gram water, stirring reaction 1 hour.First then normal pressure steams water, and the back decompression vacuumizes steaming in 20 minutes in 140 ℃ and removes moisture under 20 mmhg vacuum, and this solution is cooled to 80 ℃, slowly drips the vitriol oil of catalyst neutralisation theoretical acid amount 20 weight %.System temperature is heated to 85～90 ℃, open vacuum system, dehydration is 1 hour under high vacuum, then with nitrogen purging 3～4 times with the air in the system of removing, then the system temperature of reaction is transferred to 150 ℃ and slowly feed 445 gram oxyethane, control pressure≤0.40MPa carries out alkoxylation; Reaction is used the nitrogen purging system after finishing, and removes unreacted oxyethane, and cooling post neutralization, decolouring, filtration, dehydration get Nonyl pheno (10) ether.
(2) with step (1) institute's synthetic nonyl phenol phenol polyethenoxy (10) ether 330 grams, add in the reactor that reflux condensate device, thermometer, agitator are housed and be warming up to 45 ℃, stir the vitriol oil 101 grams that slowly drip 98 weight % down, 1.5 add in hour, continue reaction 2 hours, finish reaction, get brown viscous liquid through aftertreatment and be nonyl phenol sulfonic polyethenoxy (10) ether.
(3) in the esterification device of being furnished with stirring, temperature control unit, add nonyl phenol sulfonic polyethenoxy (10) ether 200 grams, MALEIC ANHYDRIDE 27 grams, feed nitrogen, stir and be heated to 120 ℃ of esterifications 4 hours, the sodium sulfite aqueous solution that adds 100 grams 30% again, 80 ℃ of down reactions 2 hours, at last with aqueous sodium hydroxide solution neutralize nonyl phenol sulfonic polyethenoxy (10) ether mono succinate sodium sulfonate.
To synthetic nonyl phenol sulfonic polyethenoxy (10) ether mono succinate sodium sulfonate, use U.S. Nicolet-5700 infrared spectrometer, adopt liquid-film method to carry out Infrared spectroscopy (sweep limit 4000～400cm
-1), have characteristic peak shown in Figure 1.
[embodiment 4]
Synthesizing of octyl phenol sulfonic polyethenoxy (7) ether mono succinate sodium sulfonate
(1) in the reactor that condensing works, whipping appts and gas distributor are housed, adds 103 gram (0.5 mole) octyl phenols and 2.1 gram calcium oxide, when logical nitrogen limit, limit is heated to 135 ℃, add 22 gram water, stirring reaction 1 hour.First then normal pressure steams water, and the back decompression vacuumizes steaming in 20 minutes in 140 ℃ and removes moisture under 20 mmhg vacuum, and this solution is cooled to 80 ℃, slowly drips the vitriol oil of catalyst neutralisation theoretical acid amount 20 weight %.System temperature is heated to 85～90 ℃, open vacuum system, dehydration is 1 hour under high vacuum, then with nitrogen purging 3～4 times with the air in the system of removing, then the system temperature of reaction is transferred to 150 ℃ and slowly feed 154 gram oxyethane, control pressure≤0.40MPa carries out alkoxylation; Reaction is used the nitrogen purging system after finishing, and removes unreacted oxyethane, and cooling post neutralization, decolouring, filtration, dehydration get octyl phenol polyoxy ethene (7) ether.
(2) with step (1) synthetic octyl phenol phenol polyethenoxy (7) ether 258 grams, add in the reactor that reflux condensate device, thermometer, agitator are housed and be warming up to 45 ℃, stir the vitriol oil 150 grams that slowly drip 98 weight % down, 1.5 add in hour, continue reaction 2 hours, finish reaction, get brown viscous liquid through aftertreatment and be octyl phenol sulfonic polyethenoxy (7) ether.
(3) in the esterification device of being furnished with stirring, temperature control unit, add nonyl phenol sulfonic polyethenoxy (7) ether 162 grams, MALEIC ANHYDRIDE 27 grams, feed nitrogen, stirring also is heated to 120 ℃, esterification 4 hours, the sodium sulfite aqueous solution that adds 100 grams, 30 weight % again, 80 ℃ of down reactions 2 hours, at last with aqueous sodium hydroxide solution neutralize octyl phenol sulfonic polyethenoxy (7) ether mono succinate sodium sulfonate.
To synthetic octyl phenol sulfonic polyethenoxy (7) ether mono succinate sodium sulfonate, use U.S. Nicolet-5700 infrared spectrometer, adopt liquid-film method to carry out Infrared spectroscopy (sweep limit 4000～400cm
-1), have characteristic peak shown in Figure 1.
[embodiment 5]
The stability of nonyl phenol sulfonic polyethenoxy (10) ether mono succinate sodium sulfonate surfactant composition
In the binary combination flooding oil process of reality, the binary combination flooding system continues the time of several months under the oil reservoir physicochemical condition, so require it to have stability preferably.Nonyl phenol sulfonic polyethenoxy (10) the ether mono succinate sodium sulfonate and the water of [embodiment 3] are mixed with the binary compound system, in its solution, pass to nitrogen to remove oxygen wherein, be sealed in the color-comparison tube, under 90 ℃ of temperature, the state of routine observation solution and measure it and crude oil between interfacial tension.The result shows, three months inner boundary tension force is constant substantially still to reach ultra low interfacial tension, and the binary that this product is described is driven compound system and had thermostability and interfacial tension stability preferably.
[embodiment 6]
Get [embodiment 1] synthetic nonyl phenol sulfonic polyethenoxy (7) ether mono succinate sodium sulfonate X (weight) %, polyacrylamide 0.15 (weight) %, Shengli Oil Field win the Tuo Er district and win seven wells injection water, stir 30 minutes, obtain a kind of surfactant composition.Shengli Oil Field wins Tuo Er district victory seven well injection water quality analytical resultss and sees Table 1.In the time of 90.2 ℃, this surfactant composition and Shengli Oil Field win the ultra low interfacial tension that forms between the Tuo Er district 0-141 well dewatered oil and see Table 2.Interfacial tension is dripped the interfacial tensimeter measurement with the 500 types rotation that Texas ,Usa university produces.
Table 1
| Project | Cl - | SO 4 2- | HCO 3 - | Na ++K + | Ca 2+ | Mg 2＝ | Water-mineralizing degree TDS | The water type |
| Mg/litre | 10150 | 0 | 516 | 6231 | 322 | 93 | 27312 | CaCl 2 |
Table 2
| X (weight) % | 0.05 | 0.1 | 0.2 | 0.3 |
| Interfacial tension (milli ox/rice) | 0.0087 | 0.0072 | 0.0065 | 0.0058 |
[embodiment 7]
Get [embodiment 2] synthetic 4-dodecylphenol sulfonic polyethenoxies (7) ether mono succinate sodium sulfonate X (weight) %, polyacrylamide 0.15 (weight) %, Shengli Oil Field win Tuo Er district sewage, stir 30 minutes, obtain a kind of surfactant composition.Shengli Oil Field wins Tuo Er district 0-141 well output water Analysis Results of Water Quality and sees Table 3.In the time of 90.2 ℃, this surfactant composition and Shengli Oil Field win the ultra low interfacial tension that forms between the Tuo Er district 0-141 well dewatered oil and see Table 4.Interfacial tension is dripped the interfacial tensimeter measurement with the 500 types rotation that Texas ,Usa university produces.
Table 3
| Project | Cl - | SO 4 2- | HCO 3 - | Na ++K + | Ca 2+ | Mg 2＝ | Water-mineralizing degree TDS | The water type |
| Mg/litre | 13535 | 0 | 761 | 8252 | 499 | 126 | 23175 | CaCl 2 |
Table 4
| X (weight) % | 0.05 | 0.1 | 0.2 | 0.3 |
| Interfacial tension (milli ox/rice) | 0.0075 | 0.0068 | 0.0045 | 0.0028 |
[embodiment 8]
Get [embodiment 3] synthetic nonyl phenol sulfonic polyethenoxies (10) ether mono succinate sodium sulfonate X (weight) %, polyacrylamide 0.15 (weight) %, total mineralization is 30000 mg/litre, Ca
2+, Mg
2+Concentration is the preparation water of 1000 mg/litre, stirs 30 minutes, obtains a kind of surfactant composition.In the time of 90.2 ℃, this surfactant composition and Shengli Oil Field win the ultra low interfacial tension that forms between the Tuo Er district 0-141 well dewatered oil and see Table 5.Interfacial tension is dripped the interfacial tensimeter measurement with the 500 types rotation that Texas ,Usa university produces.
Table 5
| Tensio-active agent (weight %) | 0.05 | 0.1 | 0.2 | 0.3 |
| Interfacial tension (milli ox/rice) | 0.0069 | 0.0058 | 0.0035 | 0.00082 |
[embodiment 9～11]
In length is 30 centimetres, and diameter is 2.5 centimetres, and rate of permeation is 1.5 microns
2Rock core on carry out oil displacement test.Earlier win Tuo Er district local water with Shengli Oil Field and be driven to moisturely 92%, behind the surfactant composition of metaideophone 0.3pv (rock pore volume) [embodiment 6～8], water drive is extremely moisture 100%, can improve oil recovery factor 16.8%.
Claims (8)
1. alkyl phenol sulfonic polyethenoxy ether sodium monosulfosuccinates, its general molecular formula is:
Wherein M is a basic metal; R is C
1～C
22Alkyl; N is any one integer in 1～20.
2. according to the described alkyl phenol sulfonic polyethenoxy ether sodium monosulfosuccinates of claim 1, it is characterized in that described basic metal is sodium or potassium; R is C
4～C
15Alkyl; N is any one integer in 4～15.
3. according to the described alkyl phenol sulfonic polyethenoxy ether sodium monosulfosuccinates of claim 2, it is characterized in that described basic metal is sodium; R is C
8～C
12Alkyl; N is any one integer in 5～10.
4. the preparation method of the described alkyl phenol sulfonic polyethenoxy ether sodium monosulfosuccinates of claim 1 may further comprise the steps:
A) alkylphenol and oxyethane are 85～160 ℃ in temperature of reaction, and pressure is under 0～0.40MPa gauge pressure condition, under catalyst action, react alkylphenol polyoxyethylene; The alkyl of wherein said alkylphenol is the alkyl that contains 1～22 carbon atom; The mol ratio of oxyethane and alkylphenol is 1～20: 1; Described catalyzer is the basic cpd of calcium, and consumption is 0.3～2% of an alkylphenol weight;
B) the step a) synthetic alkylphenol polyoxyethylene and the vitriol oil are under 40～60 ℃ of conditions in temperature of reaction, react to get alkyl phenol sulfonic polyoxyethylene ether in 1～10 hour; Wherein the mol ratio of the vitriol oil and alkylphenol polyoxyethylene is 2～5: 1;
C) step b) synthetic alkyl phenol sulfonic polyoxyethylene ether and MALEIC ANHYDRIDE are in mol ratio 1: 1～1.1, temperature of reaction is under 100～130 ℃ of conditions, reacted 3～5 hours, add sulphonating agent again, reacted 1～5 hour down at 70～90 ℃, with the alkaline solution neutralization that contains sodium or potassium, get alkyl phenol sulfonic polyethenoxy ether sodium monosulfosuccinates at last; Wherein said sulphonating agent is a S-WAT, and the mol ratio of MALEIC ANHYDRIDE and S-WAT is 1: 1～1.1.
5. the preparation method of alkyl phenol sulfonic polyethenoxy ether sodium monosulfosuccinates according to claim 4, it is characterized in that a) temperature of reaction is 140～160 ℃ in the step, pressure is 0.20～0.40MPa gauge pressure, and catalyst levels is 0.8～1.5% of an alkylphenol weight.
6. the preparation method of alkyl phenol sulfonic polyethenoxy ether sodium monosulfosuccinates according to claim 4 is characterized in that b) temperature of reaction is 40～45 ℃ in the step, the reaction times is 2～5 hours.
7. the preparation method of alkyl phenol sulfonic polyethenoxy ether sodium monosulfosuccinates according to claim 4, the alkyl that it is characterized in that described alkylphenol is the alkyl that contains 4～15 carbon atoms.
8. the preparation method of alkyl phenol sulfonic polyethenoxy ether sodium monosulfosuccinates according to claim 7, the alkyl that it is characterized in that described alkylphenol is the alkyl that contains 8～12 carbon atoms.
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