CN1498939A - Formulary system of amino acid type surfactant and application in tertiary oil recovery - Google Patents
Formulary system of amino acid type surfactant and application in tertiary oil recovery Download PDFInfo
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Abstract
An amino acid type surfactant system is prepared from the amino acid type surfactant, water, assistant and polymer through proportionally mixing. It can be used in tertiary petroleum recovery by using it and polymer to prepare the oil displacing system. The recovery rate of crude oil can be increased by 15-30% (OOIP).
Description
Technical field
The present invention relates to a kind of amino acid type surfactant formula system, and this seed amino acid type surfactant formula system application in tertiary oil recovery.
Background technology
The application surface promoting agent recovers the oil to study and originates in earlier 1930s in oil exploitation technology, and the history in more than 70 year is arranged so far.Seven during the last ten years, all obtained very big development in the theory and practice, at present, formed following several injection systems basically.(1) active water drive, (2) micellar solution flooding, the displacement of reservoir oil of (3) low interfacial tension system, (4) ternary composite driving.Wherein ternary composite driving (alkali-polymkeric substance-tensio-active agent) is a kind of novel method that improves oil recovery factor that just grows up the 1980s, because this method still can obtain higher oil displacement efficiency under the situation of low surfactant consumption, therefore, it has become the new technology at economic and technical all very successful raising oil recovery factor.
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 use suitable surfactant system, reduce the interfacial tension between profit, just reduced the resistance that the oil droplet distortion was brought when irreducible oil was moved, thus oil recovery factor improved.
Yet, in the existing ternary composite oil-displacing system, the alkali that contains high density, as sodium hydroxide, yellow soda ash etc., in use, huge injury has been brought on stratum and oil well etc., so press for a kind of novel flooding system now, under the situation of alkali-free, still can form 10 with underground crude oil
-3～10
-4The ultra low interfacial tension of mN/m improves more than the oil recovery factor 20% (OOIP).The new surfactant formulation system of this just alkali-free ultra low interfacial tension of the present invention and the application in tertiary oil recovery thereof.
Summary of the invention
The object of the present invention is to provide a kind of amino acid type surfactant formula system, under the condition of alkali-free, still form 10 with crude oil
-3～10
-4The ultra low interfacial tension of mN/m.
Another object of the present invention provides the application of above-mentioned amino acid type surfactant formula system in tertiary oil recovery.
Through a large amount of experiments, we obtain a kind of tertiary oil recovery amino acid type surfactant formula system that is used for of the present invention, and this formula system comprises following several composition:
(1) amino acid type surfactant is 0.02%～0.8% (weight); Wherein the molecular formula of amino acid type surfactant is:
Wherein: x is any one number in 0,1;
R is C
11～C
22In any one alkyl;
R
1Be in H, the methyl any one;
M be in basic metal, Monoethanolamine MEA BASF, diethanolamine, the trolamine any one or multiple;
(2) polymkeric substance is 0～0.25% (weight);
(3) surplus is that clear water or sewage are injected in the oil field;
Amino acid type surfactant flooding system or amino acid type surfactant that above-mentioned amino acid type surfactant formula system is mixed with---polymkeric substance binary combination flooding oil body system can reach 10 with underground crude oil
-3～10
-4The ultra low interfacial tension of mN/m, the surplus oil in the displacement oil reservoir improves more than the oil recovery factor 15%～30% (OOIP) effectively.
Amino acid type surfactant preferred range of the present invention is: in the molecular formula of amino acid type surfactant, x is 1; R is C
16Alkyl, C
18In the alkyl any one; R
1Be in H, the methyl any one; M be in sodium, potassium, lithium, Monoethanolamine MEA BASF, diethanolamine, the trolamine any one or multiple.
Amino acid type surfactant optimum range of the present invention is: in the molecular formula of amino acid type surfactant, x is 1; R
1Be H, R is C
16Alkyl, M are diethanolamine, and tensio-active agent is a N-hexadecyl L-Ala diethanolamine salt and in its molecular formula, and x is 1; R
1Be H, R is C
18Alkyl, M are potassium, and tensio-active agent is a N-octadecyl L-Ala potassium.
A kind of used for tertiary oil recovery amino acid type surfactant formula system that is used for of the present invention can also add auxiliary agent, be used for improving the flowability and the solubleness of amino acid type surfactant formula system, auxiliary agent can be any one or multiple the mixing in alcohols, ethers, the salt, and that usefulness is C here
1～C
12Monohydroxy-alcohol, ethylene glycol, glycerol, glycol ether, propylene glycol, sodium-chlor, yellow soda ash, sodium bicarbonate, water glass in any one or the multiple auxiliary agent that mixes.
A kind of polymkeric substance that is used for used for tertiary oil recovery amino acid type surfactant formula system of the present invention is a water-soluble polyacrylamide, molecular weight 300～3,000 ten thousand; It can also be xanthan gum.It has the effect of control viscosity.A kind of used for tertiary oil recovery amino acid type surfactant formula system that is used for of the present invention when the oil field is uniform formation or low permeability oil field, does not just need to add polymkeric substance in practical application, only uses the amino acid type surfactant flooding system; Low permeability oil field can also use amino acid type surfactant---and low-molecular-weight polymkeric substance binary combination flooding oil body is; Amino acid type surfactant can be used in the saturating oil field of middle and high infiltration---and the polymkeric substance binary combination flooding oil body system of different molecular weight can both reach best oil displacement efficiency.
In the amino acid type surfactant formula system, amino acid type surfactant also can add new formula system and the underground crude oil of other tensio-active agents (anion surfactant or nonionogenic tenside) composition also can reach 10
-3～10
-1Therefore the ultra low interfacial tension of mN/m can increase substantially the recovery ratio of crude oil.What emphasize here is, when in tertiary oil recovery, using, as long as containing the formula system of amino acid type surfactant of the present invention in the binary combination flooding oil body system of displacing surfactant system or tensio-active agent---polymkeric substance, is exactly integral part of the present invention.
In sum, in actual applications, because the difference of oil field block, reservoir condition is inconsistent, the composition difference of crude oil, underground water, native mineral, therefore at different reservoir conditions, just can select various combination, different ratios to make amino acid type surfactant flooding system or amino acid type surfactant---polymkeric substance binary combination flooding oil body system, to reach best oil displacement efficiency.
A kind of used for tertiary oil recovery amino acid type surfactant formula system that is used for of the present invention except being used to improve oil recovery factor, can also being used for oil well or well immediate vicinity of wellbore and handling de-plugging or step-down augmented injection.
The present invention has the following advantages:
(1) the amino acid type surfactant formula system still can form 10 with underground crude oil among alkali-free the present invention under the alkali-free condition
-3～10
-4The ultra low interfacial tension of mN/m has not only overcome when using at the scene high concentration alkali to the huge injury of stratum and oil well, and compliance with environmental protection requirements, and equipment is not had injury, can reach best oil displacement efficiency;
(2) have good acid-and base-resisting and ionogen performance and be easy to biodegradable characteristic;
(3) can improve more than the oil recovery factor 15%～30% (OOIP), can bring huge economic benefit for the oil field.
The present invention is elaborated with the following examples, and these embodiment only are used for description effect, rather than restriction this
Scope of invention.
If no special instructions, reagent that uses among the embodiment and testing tool are as follows:
One, uses reagent
N-octadecyl L-Ala potassium Daqing High-tech Park Sinno Fine Chemical Co., Ltd produces
N-hexadecyl L-Ala diethanolamine salt Daqing High-tech Park Sinno Fine Chemical Co., Ltd produces
N-hexadecyl L-Ala triethanolamine salt Daqing High-tech Park Sinno Fine Chemical Co., Ltd produces
N-hexadecyl methylalanine diethanolamine salt Daqing High-tech Park Sinno Fine Chemical Co., Ltd produces
N-octadecyl Sodium L-alaninate Daqing High-tech Park Sinno Fine Chemical Co., Ltd produces
Water-soluble polyacrylamide Daqing oil field auxiliary reagent factory produces (molecular weight 1600～1,900 ten thousand)
Experiment water Daqing oil field recover the oil four factory's clear water, four factory's sewage
Crude oil Daqing oil field dewatered oil
Two, testing tool
The production of interfacial tensimeter Texas, USA university is dripped in the rotation of 500 types
45 ℃ of experimental temperatures
Embodiment
Embodiment one: a kind of preparation of amino acid type surfactant formula system
1, the preparation of N-octadecyl L-Ala potassium
Get 0.6mol stearylamine (161g) and add in the reactor, be heated to fusing, stir,, reflux amine fat mol ratio 1: 1.2 at 58～60 ℃ of dropwise addition of acrylic acid formicester 0.72mol (62.57g).Add the back and keep 60～62 ℃, backflow 6h.Finish condensation,, the vinylformic acid formicester is sloughed in decompression again.Get 0.66mol (36.96g) potassium hydroxide again and be dissolved in the 500g water, be heated to little boiling, stir, the condenses above slowly adding adds and continues to stir again, until reactant be transparent till.Get N-octadecyl L-Ala potassium after concentrating.
2, the preparation of amino acid type surfactant formula system
Get top N-octadecyl L-Ala potassium 0.3g, water 99.7g stirs 5h, gets thick liquid, promptly makes a kind of amino acid type surfactant formula system.
Embodiment two
A kind of amino acid type surfactant formula system that is used for tertiary oil recovery, this formula system comprises following several composition:
(1) amino acid type surfactant is 0.3% (weight); Wherein amino acid type surfactant is a N-octadecyl L-Ala potassium
(2) polymkeric substance is 0;
(3) surplus is that sewage is injected in the oil field;
The amino acid type surfactant flooding system that above-mentioned amino acid type surfactant formula system is mixed with and the dynamic interface tension force of underground crude oil are seen Fig. 1, as can be seen from Figure 1, when this amino acid type surfactant formula system is used in tertiary oil recovery, just tensio-active agent (N-octadecyl L-Ala potassium) flooding system can form 10 with crude oil
-3Therefore the ultra low interfacial tension of mN/m can increase substantially the recovery ratio of crude oil.
Embodiment three
A kind of amino acid type surfactant formula system that is used for tertiary oil recovery, this formula system comprises following several composition:
(1) amino acid type surfactant is 0.05% (weight); Wherein amino acid type surfactant is a N-octadecyl L-Ala potassium
(2) polymkeric substance is 0;
(3) surplus is that sewage is injected in the oil field;
The amino acid type surfactant flooding system that above-mentioned amino acid type surfactant formula system is mixed with and the dynamic interface tension force of underground crude oil are seen Fig. 2, as can be seen from Figure 2, when this amino acid type surfactant formula system is used in tertiary oil recovery, just tensio-active agent (N-octadecyl L-Ala potassium) flooding system can form 10 with crude oil
-3～10
-4Therefore the ultra low interfacial tension of mN/m can increase substantially the recovery ratio of crude oil.
Embodiment four
A kind of amino acid type surfactant formula system that is used for tertiary oil recovery, this formula system comprises following several composition:
(1) amino acid type surfactant is 0.3% (weight); Wherein amino acid type surfactant is a N-octadecyl L-Ala potassium
(2) polymkeric substance is 0.2% (weight); Polymkeric substance is a water-soluble polyacrylamide, molecular weight 1600～1,900 ten thousand
(3) surplus is that sewage is injected in the oil field;
The amino acid type surfactant that above-mentioned amino acid type surfactant formula system is mixed with---Fig. 3 sees with the dynamic interface tension force of underground crude oil in polymkeric substance binary combination flooding oil body system, as can be seen from Figure 3, when this amino acid type surfactant formula system is used in tertiary oil recovery, just amino acid type surfactant (N-octadecyl L-Ala potassium)---polymkeric substance binary combination flooding oil body system can form 10 with crude oil
-3Therefore the ultra low interfacial tension of mN/m can increase substantially the recovery ratio of crude oil.
Embodiment five
A kind of amino acid type surfactant formula system that is used for tertiary oil recovery, this formula system comprises following several composition:
(1) amino acid type surfactant is 0.05% (weight); Wherein amino acid type surfactant is a N-octadecyl L-Ala potassium
(2) polymkeric substance is 0.2% (weight); Polymkeric substance is a water-soluble polyacrylamide, molecular weight 1600～1,900 ten thousand
(3) surplus is that sewage is injected in the oil field;
The amino acid type surfactant that above-mentioned amino acid type surfactant formula system is mixed with---Fig. 4 sees with the dynamic interface tension force of underground crude oil in polymkeric substance binary combination flooding oil body system, as can be seen from Figure 4, when this amino acid type surfactant formula system is used in tertiary oil recovery, just amino acid type surfactant (N-octadecyl L-Ala potassium)---polymkeric substance binary combination flooding oil body system can form 10 with crude oil
-3Therefore the ultra low interfacial tension of mN/m can increase substantially the recovery ratio of crude oil.
Embodiment six
A kind of amino acid type surfactant formula system that is used for tertiary oil recovery, this formula system comprises following several composition:
(1) amino acid type surfactant is 0.3% (weight); Wherein amino acid type surfactant is a N-hexadecyl L-Ala diethanolamine salt
(2) polymkeric substance is 0;
(3) surplus is that sewage is injected in the oil field;
The amino acid type surfactant flooding system that above-mentioned amino acid type surfactant formula system is mixed with and the dynamic interface tension force of underground crude oil are seen Fig. 5, as can be seen from Figure 5, when this amino acid type surfactant formula system is used in tertiary oil recovery, just tensio-active agent (N-hexadecyl L-Ala diethanolamine salt) flooding system can form 10 with crude oil
-3Therefore the ultra low interfacial tension of mN/m can increase substantially the recovery ratio of crude oil.
Embodiment seven
A kind of amino acid type surfactant formula system that is used for tertiary oil recovery, this formula system comprises following several composition:
(1) amino acid type surfactant is 0.05% (weight); Wherein amino acid type surfactant is a N-hexadecyl L-Ala diethanolamine salt
(2) polymkeric substance is 0;
(3) surplus is that sewage is injected in the oil field;
The amino acid type surfactant flooding system that above-mentioned amino acid type surfactant formula system is mixed with and the dynamic interface tension force of underground crude oil are seen Fig. 6, as can be seen from Figure 6, when this amino acid type surfactant formula system is used in tertiary oil recovery, just tensio-active agent (N-hexadecyl L-Ala diethanolamine salt) flooding system can form 10 with crude oil
-3Therefore the ultra low interfacial tension of mN/m can increase substantially the recovery ratio of crude oil.
Embodiment eight
A kind of amino acid type surfactant formula system that is used for tertiary oil recovery, this formula system comprises following several composition:
(1) amino acid type surfactant is 0.3% (weight); Wherein amino acid type surfactant is a N-hexadecyl L-Ala diethanolamine salt
(2) polymkeric substance is 0.15% (weight); Polymkeric substance is a water-soluble polyacrylamide, molecular weight 1600～1,900 ten thousand
(3) surplus is that sewage is injected in the oil field;
The amino acid type surfactant that above-mentioned amino acid type surfactant formula system is mixed with---Fig. 7 sees with the dynamic interface tension force of underground crude oil in polymkeric substance binary combination flooding oil body system, as can be seen from Figure 7, when this amino acid type surfactant formula system is used in tertiary oil recovery, just amino acid type surfactant (N-hexadecyl L-Ala diethanolamine salt)---polymkeric substance binary combination flooding oil body system can form 10 with crude oil
-3Therefore the ultra low interfacial tension of mN/m can increase substantially the recovery ratio of crude oil.
Embodiment nine
A kind of amino acid type surfactant formula system that is used for tertiary oil recovery, this formula system comprises following several composition:
(1) amino acid type surfactant is 0.05% (weight); Wherein amino acid type surfactant is a N-hexadecyl L-Ala diethanolamine salt
(2) polymkeric substance is 0.15% (weight); Polymkeric substance is a water-soluble polyacrylamide, molecular weight 1600～1,900 ten thousand
(3) surplus is that sewage is injected in the oil field;
The amino acid type surfactant that above-mentioned amino acid type surfactant formula system is mixed with---Fig. 8 sees with the dynamic interface tension force of underground crude oil in polymkeric substance binary combination flooding oil body system, as can be seen from Figure 8, when this amino acid type surfactant formula system is used in tertiary oil recovery, just amino acid type surfactant (N-hexadecyl L-Ala diethanolamine salt)---polymkeric substance binary combination flooding oil body system can form 10 with crude oil
-3Therefore the ultra low interfacial tension of mN/m can increase substantially the recovery ratio of crude oil.
Embodiment ten
A kind of amino acid type surfactant formula system that is used for tertiary oil recovery, this formula system comprises following several composition:
(1) amino acid type surfactant is 0.3% (weight); Wherein amino acid type surfactant is a N-hexadecyl L-Ala diethanolamine salt
(2) polymkeric substance is 0;
(3) surplus is that clear water is injected in the oil field;
The amino acid type surfactant flooding system that above-mentioned amino acid type surfactant formula system is mixed with and the dynamic interface tension force of underground crude oil are seen Fig. 9, as can be seen from Figure 9, when this amino acid type surfactant formula system is used in tertiary oil recovery, just tensio-active agent (N-hexadecyl L-Ala diethanolamine salt) flooding system can form 10 with crude oil
-3Therefore the ultra low interfacial tension of mN/m can increase substantially the recovery ratio of crude oil.
Embodiment 11
A kind of amino acid type surfactant formula system that is used for tertiary oil recovery, this formula system comprises following several composition:
(1) amino acid type surfactant is 0.05% (weight); Wherein amino acid type surfactant is a N-hexadecyl L-Ala diethanolamine salt
(2) polymkeric substance is 0;
(3) surplus is that clear water is injected in the oil field;
The amino acid type surfactant flooding system that above-mentioned amino acid type surfactant formula system is mixed with and the dynamic interface tension force of underground crude oil are seen Figure 10, as can be seen from Figure 10, when this amino acid type surfactant formula system is used in tertiary oil recovery, just tensio-active agent (N-hexadecyl L-Ala diethanolamine salt) flooding system can form 10 with crude oil
-3～10
-4Therefore the ultra low interfacial tension of mN/m can increase substantially the recovery ratio of crude oil.
Embodiment 12
A kind of amino acid type surfactant formula system that is used for tertiary oil recovery, this formula system comprises following several composition:
(1) amino acid type surfactant is 0.3% (weight); Wherein amino acid type surfactant is a N-hexadecyl L-Ala diethanolamine salt
(2) polymkeric substance is 0.15% (weight); Polymkeric substance is a water-soluble polyacrylamide, molecular weight 1600～1,900 ten thousand
(3) surplus is that clear water is injected in the oil field;
The amino acid type surfactant that above-mentioned amino acid type surfactant formula system is mixed with---Figure 11 sees with the dynamic interface tension force of underground crude oil in polymkeric substance binary combination flooding oil body system, as can be seen from Figure 11, when this amino acid type surfactant formula system is used in tertiary oil recovery, just amino acid type surfactant (N-hexadecyl L-Ala diethanolamine salt)---polymkeric substance binary combination flooding oil body system can form 10 with crude oil
-3Therefore the ultra low interfacial tension of mN/m can increase substantially the recovery ratio of crude oil.
Embodiment 13
A kind of amino acid type surfactant formula system that is used for tertiary oil recovery, this formula system comprises following several composition:
(1) amino acid type surfactant is 0.05% (weight); Wherein amino acid type surfactant is a N-hexadecyl L-Ala diethanolamine salt
(2) polymkeric substance is 0.15% (weight); Polymkeric substance is a water-soluble polyacrylamide, molecular weight 1600～1,900 ten thousand
(3) surplus is that clear water is injected in the oil field;
The amino acid type surfactant that above-mentioned amino acid type surfactant formula system is mixed with---Figure 12 sees with the dynamic interface tension force of underground crude oil in polymkeric substance binary combination flooding oil body system, as can be seen from Figure 12, when this amino acid type surfactant formula system is used in tertiary oil recovery, just amino acid type surfactant (N-hexadecyl L-Ala diethanolamine salt)---polymkeric substance binary combination flooding oil body system can form 10 with crude oil
-3Therefore the ultra low interfacial tension of mN/m can increase substantially the recovery ratio of crude oil.
Embodiment 14
A kind of amino acid type surfactant formula system that is used for tertiary oil recovery, this formula system comprises following several composition:
(1) amino acid type surfactant is 0.3% (weight); Wherein amino acid type surfactant is a N-hexadecyl L-Ala triethanolamine salt
(2) polymkeric substance is 0.15% (weight); Polymkeric substance is a water-soluble polyacrylamide, molecular weight 1600～1,900 ten thousand
(3) surplus is that sewage is injected in the oil field;
The amino acid type surfactant that above-mentioned amino acid type surfactant formula system is mixed with---Figure 13 sees with the dynamic interface tension force of underground crude oil in polymkeric substance binary combination flooding oil body system, as can be seen from Figure 13, when this amino acid type surfactant formula system is used in tertiary oil recovery, just tensio-active agent (N-hexadecyl L-Ala triethanolamine salt)---polymkeric substance binary combination flooding oil body system can form 10 with crude oil
-2Therefore the low interfacial tension of mN/m can improve the recovery ratio of crude oil.
Embodiment 15
A kind of amino acid type surfactant formula system that is used for tertiary oil recovery, this formula system comprises following several composition:
(1) amino acid type surfactant is 0.05% (weight); Wherein amino acid type surfactant is a N-hexadecyl L-Ala triethanolamine salt
(2) polymkeric substance is 0.15% (weight); Polymkeric substance is a water-soluble polyacrylamide, molecular weight 1600～1,900 ten thousand
(3) surplus is that sewage is injected in the oil field;
The amino acid type surfactant that above-mentioned amino acid type surfactant formula system is mixed with---Figure 14 sees with the dynamic interface tension force of underground crude oil in polymkeric substance binary combination flooding oil body system, as can be seen from Figure 14, when this amino acid type surfactant formula system is used in tertiary oil recovery, just tensio-active agent (N-hexadecyl L-Ala triethanolamine salt)---polymkeric substance binary combination flooding oil body system can form 10 with crude oil
-3Therefore the ultra low interfacial tension of mN/m can increase substantially the recovery ratio of crude oil.
Embodiment 16
A kind of amino acid type surfactant formula system that is used for tertiary oil recovery, this formula system comprises following several composition:
(1) amino acid type surfactant is 0.3% (weight); Wherein amino acid type surfactant is a N-hexadecyl methylalanine diethanolamine salt
(2) polymkeric substance is 0;
(3) surplus is that clear water is injected in the oil field;
The amino acid type surfactant flooding system that above-mentioned amino acid type surfactant formula system is mixed with and the dynamic interface tension force of underground crude oil are seen Figure 15, as can be seen from Figure 15, when this amino acid type surfactant formula system is used in tertiary oil recovery, just tensio-active agent (N-hexadecyl methylalanine diethanolamine salt) flooding system can form 10 with crude oil
-2Therefore the low interfacial tension of mN/m can improve the recovery ratio of crude oil.
Embodiment 17
A kind of amino acid type surfactant formula system that is used for tertiary oil recovery, this formula system comprises following several composition:
(1) amino acid type surfactant is 0.05% (weight); Wherein amino acid type surfactant is a N-hexadecyl methylalanine diethanolamine salt
(2) polymkeric substance is 0;
(3) surplus is that clear water is injected in the oil field;
The amino acid type surfactant flooding system that above-mentioned amino acid type surfactant formula system is mixed with and the dynamic interface tension force of underground crude oil are seen Figure 16, as can be seen from Figure 16, when this amino acid type surfactant formula system is used in tertiary oil recovery, just tensio-active agent (N-hexadecyl methylalanine diethanolamine salt) flooding system can form 10 with crude oil
-2Therefore the low interfacial tension of mN/m can improve the recovery ratio of crude oil.
Embodiment 18
A kind of amino acid type surfactant formula system that is used for tertiary oil recovery, this formula system comprises following several composition:
(1) amino acid type surfactant is 0.3% (weight); Wherein amino acid type surfactant is a N-octadecyl L-Ala potassium
(2) polymkeric substance is 0.15% (weight); Polymkeric substance is a water-soluble polyacrylamide, molecular weight 1600～1,900 ten thousand
(3) surplus is that sewage is injected in the oil field;
In perm-plug method is 1000md, inject the binary slug in the core earlier, it consists of the amino acid type surfactant that above-mentioned amino acid type surfactant formula system is mixed with---and polymkeric substance binary combination flooding oil body is 0.38PV (volume of voids), follow-up slug 0.1PV (volume of voids) polymkeric substance that reinjects can improve more than the recovery ratio 21% (OOIP) of crude oil.
Embodiment 19
A kind of amino acid type surfactant formula system that is used for tertiary oil recovery, this formula system comprises following several composition:
(1) amino acid type surfactant is 0.3% (weight); Wherein amino acid type surfactant is a N-hexadecyl L-Ala diethanolamine salt
(2) polymkeric substance is 0.15% (weight); Polymkeric substance is a water-soluble polyacrylamide, molecular weight 1600～1,900 ten thousand
(3) surplus is that sewage is injected in the oil field;
In perm-plug method is 1000md, inject the binary slug in the core earlier, it consists of the amino acid type surfactant that above-mentioned amino acid type surfactant formula system is mixed with---and polymkeric substance binary combination flooding oil body is 0.38PV (volume of voids), follow-up slug 0.1PV (volume of voids) polymkeric substance that reinjects can improve more than the recovery ratio 21% (OOIP) of crude oil.
Figure of description is seen in Fig. 1 in the foregoing description two～17～16, wherein the amino acid type surfactant flooding system that is mixed with for the amino acid type surfactant formula system among the embodiment two of Fig. 1 and the dynamic interface length tension relation figure of underground crude oil.The amino acid type surfactant flooding system that Fig. 2 is mixed with for the amino acid type surfactant formula system among the embodiment three and the dynamic interface length tension relation figure of underground crude oil.The amino acid type surfactant that Fig. 3 is mixed with for the amino acid type surfactant formula system among the embodiment four---the dynamic interface length tension relation figure of polymkeric substance binary combination flooding oil body system and underground crude oil.The amino acid type surfactant that Fig. 4 is mixed with for the amino acid type surfactant formula system among the embodiment five---the dynamic interface length tension relation figure of polymkeric substance binary combination flooding oil body system and underground crude oil.The amino acid type surfactant flooding system that Fig. 5 is mixed with for the amino acid type surfactant formula system among the embodiment six and the dynamic interface length tension relation figure of underground crude oil.The amino acid type surfactant flooding system that Fig. 6 is mixed with for the amino acid type surfactant formula system among the embodiment seven and the dynamic interface length tension relation figure of underground crude oil.The amino acid type surfactant that Fig. 7 is mixed with for the amino acid type surfactant formula system among the embodiment eight---the dynamic interface length tension relation figure of polymkeric substance binary combination flooding oil body system and underground crude oil.The amino acid type surfactant that Fig. 8 is mixed with for the amino acid type surfactant formula system among the embodiment nine---the dynamic interface length tension relation figure of polymkeric substance binary combination flooding oil body system and underground crude oil.The amino acid type surfactant flooding system that Fig. 9 is mixed with for the amino acid type surfactant formula system among the embodiment ten and the dynamic interface length tension relation figure of underground crude oil.The amino acid type surfactant flooding system that Figure 10 is mixed with for the amino acid type surfactant formula system among the embodiment 11 and the dynamic interface length tension relation figure of underground crude oil.The dynamic interface length tension relation figure of the amino acid type surfactant that Figure 11 is mixed with for the amino acid type surfactant formula system among the embodiment 12-polymkeric substance binary combination flooding oil body system and underground crude oil.The dynamic interface length tension relation figure of the amino acid type surfactant that Figure 12 is mixed with for the amino acid type surfactant formula system among the embodiment 13-polymkeric substance binary combination flooding oil body system and underground crude oil.The dynamic interface length tension relation figure of the amino acid type surfactant that Figure 13 is mixed with for the amino acid type surfactant formula system among the embodiment 14-polymkeric substance binary combination flooding oil body system and underground crude oil.The dynamic interface length tension relation figure of the amino acid type surfactant that Figure 14 is mixed with for the amino acid type surfactant formula system among the embodiment 15-polymkeric substance binary combination flooding oil body system and underground crude oil.The amino acid type surfactant flooding system that Figure 15 is mixed with for the amino acid type surfactant formula system among the embodiment 16 and the dynamic interface length tension relation figure of underground crude oil.The amino acid type surfactant flooding system that Figure 16 is mixed with for the amino acid type surfactant formula system among the embodiment 17 and the dynamic interface length tension relation figure of underground crude oil.
Claims (10)
1, a kind of amino acid type surfactant formula system that is used for tertiary oil recovery, this formula system comprises following several composition:
(1) amino acid type surfactant is 0.02%～0.8% (weight); Wherein the molecular formula of amino acid type surfactant is:
Wherein: x is any one number in 0,1;
R is C
11～C
22In any one alkyl;
R
1Be in H, the methyl any one;
M be in basic metal, Monoethanolamine MEA BASF, diethanolamine, the trolamine any one or multiple;
(2) polymkeric substance is 0～0.25% (weight);
(3) surplus is that clear water or sewage are injected in the oil field.
2, the amino acid type surfactant formula system that is used for tertiary oil recovery of claim 1 is characterized in that, in the amino acid type surfactant molecular formula, x is 1; R is C
16Alkyl, C
18In the alkyl any one; R
1Be in H, the methyl any one; M be in sodium, potassium, lithium, Monoethanolamine MEA BASF, diethanolamine, the trolamine any one or multiple.
3, the amino acid type surfactant formula system that is used for tertiary oil recovery of claim 2 is characterized in that, in the amino acid type surfactant molecular formula, and R
1Be H, R is C
16Alkyl, M are diethanolamine, and this amino acid type surfactant is a N-hexadecyl L-Ala diethanolamine salt.
4, the amino acid type surfactant formula system that is used for tertiary oil recovery of claim 2 is characterized in that, in the amino acid type surfactant molecular formula, and R
1Be H, R is C
18Alkyl, M are potassium, and this amino acid type surfactant is a N-octadecyl L-Ala potassium.
5, the amino acid type surfactant formula system that is used for tertiary oil recovery of one of claim 1～4, it is characterized in that, can also add auxiliary agent in the amino acid type surfactant formula system, auxiliary agent is any one or the multiple auxiliary agent that mixes in alcohols, ethers, the salt.
6, the amino acid type surfactant formula system that is used for tertiary oil recovery of one of claim 1～4 is characterized in that, polymkeric substance is a water-soluble polyacrylamide, molecular weight 300～30,000,000.
7, the amino acid type surfactant formula system that is used for tertiary oil recovery of one of claim 1～4 is characterized in that, polymkeric substance is an xanthan gum.
8, the amino acid type surfactant formula system that is used for tertiary oil recovery of one of claim 1～4, wherein the amino acid type surfactant tensio-active agent that also can add other is formed new formula system and underground crude oil and can be reached 10
-3～10
-1The ultra low interfacial tension of mN/m can improve oil recovery factor.
9, the application of the amino acid type surfactant formula system that is used for tertiary oil recovery of one of claim 1～4 is characterized in that, the amino acid type surfactant flooding system that it is mixed with is applicable to low permeability oil field; The amino acid type surfactant that it is mixed with---polymkeric substance binary combination flooding oil body system is applicable to low permeability oil field and the saturating oil field of middle and high infiltration.
10, the application of the amino acid type surfactant formula system that is used for tertiary oil recovery of one of claim 1～4 is characterized in that, this formula system can also be applied to oil well or handle the well immediate vicinity of wellbore, de-plugging or step-down augmented injection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031098347A CN1498939A (en) | 2002-10-30 | 2003-04-14 | Formulary system of amino acid type surfactant and application in tertiary oil recovery |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02146641.6 | 2002-10-30 | ||
| CN02146641 | 2002-10-30 | ||
| CNA031098347A CN1498939A (en) | 2002-10-30 | 2003-04-14 | Formulary system of amino acid type surfactant and application in tertiary oil recovery |
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| Publication Number | Publication Date |
|---|---|
| CN1498939A true CN1498939A (en) | 2004-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA031098347A Pending CN1498939A (en) | 2002-10-30 | 2003-04-14 | Formulary system of amino acid type surfactant and application in tertiary oil recovery |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102040994A (en) * | 2010-09-11 | 2011-05-04 | 任朝华 | Haloduric sulfamic-acid-type amphoteric surfactant composite system and application thereof in tertiary oil recovery |
| US8697614B2 (en) | 2010-11-22 | 2014-04-15 | E I Du Pont De Nemours And Company | Oil release with N-lauroyl amino acid-based compounds |
| CN104263345A (en) * | 2014-09-12 | 2015-01-07 | 大连东方创新科技有限公司 | Betaine surfactant combination flooding system and application thereof |
| US8940665B2 (en) | 2010-11-22 | 2015-01-27 | E I Du Pont De Nemours And Company | Oil release with amino acid-based compounds having a long chain N-acyl group |
| US8940664B2 (en) | 2010-11-22 | 2015-01-27 | E I Du Pont De Nemours And Company | Oil release with polyethylene oxide segment-containing N-lauroyl amino acid-based compounds |
| CN104929597A (en) * | 2015-06-10 | 2015-09-23 | 中国石油天然气股份有限公司 | Horizontal well chemical flooding mining method |
| CN111621279A (en) * | 2020-06-05 | 2020-09-04 | 赛科思能源技术(重庆)有限责任公司 | Imbibition oil displacement agent for improving recovery ratio in middle and later periods of oilfield development |
| CN114774098A (en) * | 2022-05-27 | 2022-07-22 | 山东新港化工有限公司 | Thickened oil viscosity-reducing oil detergent for synergistic polymer flooding and preparation method and application thereof |
| CN114854388A (en) * | 2021-02-04 | 2022-08-05 | 唐山冀油瑞丰化工有限公司 | Preparation method and application of nano oil displacement agent |
| CN115651621A (en) * | 2022-11-23 | 2023-01-31 | 克拉玛依新科澳石油天然气技术股份有限公司 | High-permeability thickened oil blocking remover, preparation method thereof and blocking removal construction method |
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- 2003-04-14 CN CNA031098347A patent/CN1498939A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102040994A (en) * | 2010-09-11 | 2011-05-04 | 任朝华 | Haloduric sulfamic-acid-type amphoteric surfactant composite system and application thereof in tertiary oil recovery |
| CN102040994B (en) * | 2010-09-11 | 2013-05-29 | 任朝华 | Haloduric sulfamic-acid-type amphoteric surfactant composite system and application thereof in tertiary oil recovery |
| US8697614B2 (en) | 2010-11-22 | 2014-04-15 | E I Du Pont De Nemours And Company | Oil release with N-lauroyl amino acid-based compounds |
| US8940665B2 (en) | 2010-11-22 | 2015-01-27 | E I Du Pont De Nemours And Company | Oil release with amino acid-based compounds having a long chain N-acyl group |
| US8940664B2 (en) | 2010-11-22 | 2015-01-27 | E I Du Pont De Nemours And Company | Oil release with polyethylene oxide segment-containing N-lauroyl amino acid-based compounds |
| CN104263345A (en) * | 2014-09-12 | 2015-01-07 | 大连东方创新科技有限公司 | Betaine surfactant combination flooding system and application thereof |
| CN104929597A (en) * | 2015-06-10 | 2015-09-23 | 中国石油天然气股份有限公司 | Horizontal well chemical flooding mining method |
| CN111621279A (en) * | 2020-06-05 | 2020-09-04 | 赛科思能源技术(重庆)有限责任公司 | Imbibition oil displacement agent for improving recovery ratio in middle and later periods of oilfield development |
| CN114854388A (en) * | 2021-02-04 | 2022-08-05 | 唐山冀油瑞丰化工有限公司 | Preparation method and application of nano oil displacement agent |
| CN114774098A (en) * | 2022-05-27 | 2022-07-22 | 山东新港化工有限公司 | Thickened oil viscosity-reducing oil detergent for synergistic polymer flooding and preparation method and application thereof |
| CN115651621A (en) * | 2022-11-23 | 2023-01-31 | 克拉玛依新科澳石油天然气技术股份有限公司 | High-permeability thickened oil blocking remover, preparation method thereof and blocking removal construction method |
| CN115651621B (en) * | 2022-11-23 | 2023-10-31 | 克拉玛依新科澳石油天然气技术股份有限公司 | High-permeability thickened oil blocking remover, preparation method thereof and blocking removing construction method |
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