CN109401743A - Salt tolerant acidproof water pumping gas production foam discharging agent composition and the preparation method and application thereof - Google Patents
Salt tolerant acidproof water pumping gas production foam discharging agent composition and the preparation method and application thereof Download PDFInfo
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- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
- C09K8/584—Compositions 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 surfactants
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Abstract
The present invention relates to a kind of salt tolerant acidproof water pumping gas production foam discharging agent compositions and the preparation method and application thereof.Mainly solve the problem of existing gas well in the process of development hydrops it is excessive cause the gas well underproduction even stop-spraying.It as mass fraction include following components: (1) 1 part of imidazoline type amphoteric surfactant；(2) 0.2~20 parts of alpha-alkene sulfonate；(3) 0-10 parts of nano particles；Wherein the imidazoline type amphoteric surfactant has general molecular formula shown in formula (I), the R1For C8~C30Fat-based；R2For C1~C5Alkylidene or substituted alkylene in any one；Y is that molecule shown in formula (I) is made to preferably resolve the problem in the technical solution of the anionic group of electroneutral, is applicable to the water pumping gas production with high salt containing acid gas field.
Description
Technical field
The present invention relates to a kind of salt tolerant acidproof water pumping gas production foam discharging agent compositions and the preparation method and application thereof, belong to oil
Gas field chemical agent technical field.
Background technique
With the reinforcement of gas-field exploitation dynamics, gas field is discharged the critical issue normally produced at gas well is restricted.Foam row
Hydromining gas is a kind of drainage gas recovery that recent domestic rapidly develops, simple, easy for construction, at low cost with equipment,
Applicable well depth range is big, does not influence the advantages that gas well normally produces.So-called foaming water discharge is exactly by drawing into shaft bottom mineralized water
Enter some surfactants with specific function, make it during gas-liquid two-phase mixes perpendicular flow, generates a large amount of low close
Resistance aqueous foam is spent, foam takes water with air-flow from shaft bottom to ground, improves gas-liquid and vertically lifts liquid ability, reaches the mesh of water pumping gas production
's.Not only salinity is high in some gas fields, and due to the presence of sour gas, shows acidity, so that the foamability of foam discharging agent and steady
It is qualitative to be all greatly reduced, the effect of water pumping gas production is not achieved.Therefore it needs to develop and there is acidproof salt tolerant, the bubble row of height blistering efficiency
Agent.
Water pumping gas production at present mostly uses greatly Recompounded multielement system with foaming agent, at the same include nonionic surface active agent and
Ionic surfactant.In order to enhance the stability of single foam, alkali, alcohol, polymer, alkanol acyl are usually additionally added in formula
The auxiliary agents such as amine form strengthening foam.Patent CN102212344A discloses a kind of high-temperature foam scrubbing agent for drainage gas recovery, and component is pressed
Mass fraction are as follows: 10~15 parts of lauryl sodium sulfate, 2~5 parts of alkyl glycosides, AES15~18 part, dodecyl sodium sulfate 20
~25 parts, 5~10 parts of biosurfactant, 27~48 parts of water, salt resistant character is poor.US20120279715 reports one
Gas recovery increases the aerated fluid of oil yield in kind gas well, is that a kind of phosphinylidyne-containing amine group quaternary surfactant has both bubble row
And sterilizing function, hydrophobic chain are the hydrophobic patch replaced in naphthalene nucleus, phenyl ring or natural grease, have very strong chlorine-resistant and anticoagulant analysis
The performance of oil also has good corrosion inhibition.However due to containing the amide group more sensitive to high temperature in molecular structure,
Thus hydrolysis is easy under acid condition.
Summary of the invention
The first technical problem to be solved by the present invention is that hydrops is excessive in the process of development for existing gas well, leads to gas well
The underproduction even stop-spraying the problem of, a kind of gas well foam discharging agent composition for efficiently taking liquid is provided, there is good salt resistant character, acidproof
Performance, frothing capacity and fluid-carrying capability.
The second technical problem to be solved by the present invention is corresponding to provide a kind of one of and solution above-mentioned technical problem
The preparation method of salt tolerant acidproof water pumping gas production foam discharging agent composition.
The third technical problem to be solved by the present invention is corresponding to provide a kind of one of and solution above-mentioned technical problem
Application method of the acidproof water pumping gas production of salt tolerant with foam discharging agent composition in water pumping gas production.
One of to solve above-mentioned technical problem, The technical solution adopted by the invention is as follows: a kind of acidproof water pumping gas production of salt tolerant
With foam discharging agent composition, based on mass fraction, including following components:
(1) 1 part of imidazoline type amphoteric surfactant；
(2) 0.2~20 parts of alpha-alkene sulfonate；
(3) 0-10 parts of nano particles；
The imidazoline type amphoteric surfactant has following general molecular formula:
Wherein, R1For C8~C30Fat-based；R2For C1~C5Alkylidene or substituted alkylene in any one；Y is
Making molecule shown in formula (I) is in the anionic group of electroneutral.
In above-mentioned technical proposal, as long as the Y makes general molecular formula (II) to be in the anionic group of electroneutral, such as
But Y is not limited and preferably is selected from-COO—、-SO3 —、-HPO4 —At least one of, further preferably-COO—、-SO3 —In at least
It is a kind of.
In above-mentioned technical proposal, the R1For C8~C30Fat-based, the bases such as acyl group, carbonyl, ether, hydroxyl can be contained
Group, can be saturated carbon chains, can also contain unsaturated carbon chains, as preferred R1Preferred embodiment be C8~C18Alkyl, C8~
C18Alkenyl.
In above-mentioned technical proposal, the R2Preferably C1~C3Alkylidene, C1~C3Substituted alkylene in it is any one
Kind.
In above-mentioned technical proposal, the alpha-alkene sulfonate preferably has following general molecular formula:
R3- HC=CH-CH2-SO3M (II)
Wherein R3For C5~C30Alkyl, M is any one metal ion in alkali metal；Further preferred: M is excellent
Selecting scheme is the sodium or potassium ion in alkali metal, and more preferable scheme is selected from sodium；R3Preferred embodiment is selected from C8~C22Alkyl,
More preferable scheme is selected from C14~C18Alkyl.
In above-mentioned technical proposal, nano particle is at least one of silica, hectorite, calcium carbonate.
In above-mentioned technical proposal, the acidproof salt tolerant foam discharging agent composition is preferably included in terms of mass fraction: (1) 1 part
Imidazoline type amphoteric surfactant；(2) 0.5-10 parts of alpha-alkene sulfonates；(3) 1-5 parts of nano particles.
Foaming agent combination in the present invention does not have particular/special requirement to water, can be deionized water when preparing, can be with
It is the water containing inorganic mineral, and the water containing inorganic mineral can be tap water, gas well water flooding or gas well injection water.
To solve above-mentioned technical problem two, The technical solution adopted by the invention is as follows: a kind of acidproof salt tolerant water pumping gas production
With the preparation method of foam discharging agent composition, comprising the following steps:
(1) synthesis of imidazoline type amphoteric surfactant
A, R is added in a kettle1COOH and hydroxyethyl ethylenediamine, are reacted, and imidazoline intermediate is obtained；
B, by imidazoline intermediate, sulfonated reagent or carboxylating reagent according to molar ratio 1:(1~3) it is added in reaction kettle, in
60~100 DEG C are reacted 1~10 hour, and the imidazoline type amphoteric surfactant is obtained, and the sulfonated reagent is hydroxyl
Sulfonic acid and its salt, halogenosulfonic acid and its salt；Carboxylating reagent is halogenated carboxylic acid and its salt；
(2) preparation of foam discharging agent composition
Imidazoline type amphoteric surfactant, alpha-alkene sulfonate and nano particle are dissolved in water by required mass ratio
In, it is uniformly mixed to obtain salt tolerant acidproof water pumping gas production foam discharging agent composition.
In above-mentioned technical proposal, reaction in the step a is preferably warming up to 100 DEG C, adjust reaction kettle vacuum degree to
Effluent state reacts 6 hours it is further heated up to 200 DEG C, obtains imidazoline intermediate.
The key active ingredient of foam discharging agent of the present invention is alpha-alkene sulfonate and imidazoline type amphoteric surfactant, ability
Field technique personnel know, for the ease of transporting and storing or scene uses etc. considers, can use various supply forms, example
Such as water-free solid-state form perhaps aqueous solid-state form perhaps aqueous cream form or aqueous solution form；It is water-soluble
Liquid form includes that the form of concentrate is made into water, is directly made into the foam discharging agent form of concentration needed for scene；Wherein, do not have to water
Particular/special requirement can be deionized water, can also be the water containing inorganic mineral, and the water containing inorganic mineral can be originally
Water, gas well water flooding or gas well inject water.
To solve above-mentioned technical problem three, The technical solution adopted by the invention is as follows: a kind of acidproof water pumping gas production of salt tolerant
With application method of the foam discharging agent composition in water pumping gas production.
In above-mentioned technical proposal, the application method has no specifically limited, and those skilled in the art can be according to existing skill
Drainage gas production technology in art is applied, such as but does not limit the application and be applicable in the formation water salinity of gas well as 0
~200000ppm, being applicable in pH value is 3~7.
The imidazoline type amphoteric surfactant of acidproof salt tolerant water pumping gas production foam discharging agent of the invention is a kind of excellent
Foaming agent has good frothing capacity and anti-salt property, and since it is amphoteric ion, insensitive to pH value, has good
Acid resistance, have good synergistic effect with anionic surfactant；Alpha-alkene sulfonate has good foaming capacity, and
There is preferable salt-resistance, forms compounding synergistic effect after the two mixing, enhance the fluid-carrying capability and foam stability energy of foam；Nanometer
Additions of grain can effectively increase the viscosity of foam system, be formed simultaneously fine and close particlized film, inhibit the poly- of bubble and with
Disproportionation, to enhance the stability of foam.
Using technical solution of the present invention, the foam discharging agent composition is applicable to salinity lower than 200000mg/L, pH
The gas well of value 3~7.The foam discharging agent is steeped according to SY/T 6465-2000 " foam drainage gas recovery foaming agent evaluation method "
Foam performance test, foam height be greater than 200mm, liquid carry over be greater than 140mL, have good frothing capacity, foam stability and
Fluid-carrying capability achieves preferable technical effect.
In order to better understand the present invention, the content that the present invention is further explained with reference to embodiments, but it is of the invention
Content is not limited solely to the following examples.
Specific embodiment
[embodiment 1]
The preparation of composition XN-1, preparation step:
(1) synthesis of imidazoline type amphoteric surfactant
A, 25 grams of C are added in a kettle12H25COOH and 10 gram of hydroxyethyl ethylenediamine is warming up to 100 DEG C, adjusts reaction
Kettle vacuum degree is reacted 6 hours to effluent state it is further heated up to 200 DEG C, is stopped reaction and is obtained imidazoline intermediate；
B, obtained imidazoline intermediate is reacted by 15 grams and 7.5 grams of sodium chloroacetates are added in reaction kettle, react 5 in 80 DEG C
Hour, obtain the imidazoline type amphoteric surfactant；
(2) preparation of foam discharging agent composition
By imidazoline type amphoteric surfactant, AOS14-16Being dissolved in salinity with silica 1:1:1 in mass ratio is
50000mg/L, pH value be 7 water in, be uniformly mixed, be configured to the solution of 1.0wt% to get foam discharging agent composition XN-1.Group
Separation structure is as shown in table 1.
[embodiment 2]
The preparation of composition XN-2, preparation step:
(1) synthesis of imidazoline type amphoteric surfactant
A, 23 grams of C are added in a kettle14H27COOH and 10 gram of hydroxyethyl ethylenediamine is warming up to 100 DEG C, adjusts reaction
Kettle vacuum degree is reacted 6 hours to effluent state it is further heated up to 200 DEG C, is stopped reaction and is obtained imidazoline intermediate；
B, obtained imidazoline intermediate is reacted by 15 grams and 10 grams of chloropropyl sodium sulfonates are added in reaction kettle, it is anti-in 80 DEG C
It answers 6 hours, obtains the imidazoline type amphoteric surfactant；
(2) preparation of foam discharging agent composition
By imidazoline type amphoteric surfactant, AOS14-18Being dissolved in salinity with silica 1:5:4 in mass ratio is
150000mg/L, pH value be 3 water in, be uniformly mixed, be configured to the solution of 1.0wt% to get foam discharging agent composition XN-2.Group
Separation structure is as shown in table 1.
[embodiment 3]
The preparation of composition XN-3, preparation step:
(1) synthesis of imidazoline type amphoteric surfactant
A, 18 grams of C are added in a kettle10H21COOH and 10 gram of hydroxyethyl ethylenediamine is warming up to 100 DEG C, adjusts reaction
Kettle vacuum degree is reacted 6 hours to effluent state it is further heated up to 200 DEG C, is stopped reaction and is obtained imidazoline intermediate；
B, obtained imidazoline intermediate is reacted by 15 grams and 8.5 grams of chloropropionic acid sodium are added in reaction kettle, react in 100 DEG C
3 hours, obtain the imidazoline type amphoteric surfactant；
(2) preparation of foam discharging agent composition
By imidazoline type amphoteric surfactant, AOS16-18Being dissolved in salinity with silica 1:2:3 in mass ratio is
80000mg/L, pH value be 5 water in, be uniformly mixed, be configured to the solution of 1.0wt% to get foam discharging agent composition XN-3.Group
Separation structure is as shown in table 1.
[embodiment 4]
The preparation of composition XN-4, preparation step:
(1) synthesis of imidazoline type amphoteric surfactant
A, 32 grams of C are added in a kettle16H33COOH and 10 gram of hydroxyethyl ethylenediamine is warming up to 100 DEG C, adjusts reaction
Kettle vacuum degree is reacted 6 hours to effluent state it is further heated up to 200 DEG C, is stopped reaction and is obtained imidazoline intermediate；
B, obtained imidazoline intermediate is reacted by 15 grams and 9 grams of chloroethyl sodium sulfonates are added in reaction kettle, it is anti-in 60 DEG C
It answers 6 hours, obtains the imidazoline type amphoteric surfactant；
(2) preparation of foam discharging agent composition
By imidazoline type amphoteric surfactant, AOS14-16Salinity is dissolved in silica 1:0.5:3 in mass ratio
For 100000mg/L, in the water that pH value is 5, it is uniformly mixed, is configured to the solution of 1.0wt% to get foam discharging agent composition XN-4.
Component structure is as shown in table 1.
[embodiment 5]
The preparation of composition XN-5, preparation step:
(1) synthesis of imidazoline type amphoteric surfactant
A, 30 grams of C are added in a kettle18H35COOH and 10 gram of hydroxyethyl ethylenediamine is warming up to 100 DEG C, adjusts reaction
Kettle vacuum degree is reacted 6 hours to effluent state it is further heated up to 200 DEG C, is stopped reaction and is obtained imidazoline intermediate；
B, obtained imidazoline intermediate is reacted by 15 grams and 8 grams of chloroethyl sodium sulfonates are added in reaction kettle, it is anti-in 100 DEG C
It answers 3 hours, obtains the imidazoline type amphoteric surfactant；
(2) preparation of foam discharging agent composition
By imidazoline type amphoteric surfactant, AOS14-18Being dissolved in salinity with silica 1:10:5 in mass ratio is
100000mg/L, pH value be 3 water in, be uniformly mixed, be configured to the solution of 1.0wt% to get foam discharging agent composition XN-5.Group
Separation structure is as shown in table 1.
[embodiment 6]
The preparation of composition XN-6, preparation step:
(1) synthesis of imidazoline type amphoteric surfactant
A, 20 grams of C are added in a kettle12H23COOH and 10 gram of hydroxyethyl ethylenediamine is warming up to 100 DEG C, adjusts reaction
Kettle vacuum degree is reacted 6 hours to effluent state it is further heated up to 200 DEG C, is stopped reaction and is obtained imidazoline intermediate；
B, obtained imidazoline intermediate is reacted by 15 grams and 8.5 grams of sodium chloroacetates are added in reaction kettle, react 8 in 60 DEG C
Hour, obtain the imidazoline type amphoteric surfactant；
(2) preparation of foam discharging agent composition
By imidazoline type amphoteric surfactant, AOS16-18Being dissolved in salinity with silica 1:3:4 in mass ratio is
150000mg/L, pH value be 5 water in, be uniformly mixed, be configured to the solution of 1.0wt% to get foam discharging agent composition XN-6.Group
Separation structure is as shown in table 1.
[embodiment 7]
The preparation of composition XN-7, preparation step:
(1) synthesis of imidazoline type amphoteric surfactant
A, 20 grams of C are added in a kettle12H25COOH and 10 gram of hydroxyethyl ethylenediamine is warming up to 100 DEG C, adjusts reaction
Kettle vacuum degree is reacted 6 hours to effluent state it is further heated up to 200 DEG C, is stopped reaction and is obtained imidazoline intermediate；
B, obtained imidazoline intermediate is reacted by 15 grams and 10 grams of chloro-butyric acid sodium are added in reaction kettle, react 7 in 60 DEG C
Hour, obtain the imidazoline type amphoteric surfactant；
(2) preparation of foam discharging agent composition
By imidazoline type amphoteric surfactant, AOS14-16Salinity is dissolved in silica 1:0.8:5 in mass ratio
For 100000mg/L, in the water that pH value is 3, it is uniformly mixed, is configured to the solution of 1.0wt% to get foam discharging agent composition XN-7.
Component structure is as shown in table 1.
[embodiment 8]
The preparation of composition XN-8, preparation step:
(1) synthesis of imidazoline type amphoteric surfactant
A, 16 grams of C are added in a kettle8H17COOH and 10 gram of hydroxyethyl ethylenediamine is warming up to 100 DEG C, adjusts reaction kettle
Vacuum degree is reacted 6 hours to effluent state it is further heated up to 200 DEG C, is stopped reaction and is obtained imidazoline intermediate；
B, obtained imidazoline intermediate is reacted by 15 grams and 10 grams of chloropropionic acid sodium are added in reaction kettle, react 4 in 80 DEG C
Hour, obtain the imidazoline type amphoteric surfactant；
(2) preparation of foam discharging agent composition
By imidazoline type amphoteric surfactant, AOS16-18Being dissolved in salinity with hectorite 1:8:2 in mass ratio is
100000mg/L, pH value be 7 water in, be uniformly mixed, be configured to the solution of 1.0wt% to get foam discharging agent composition XN-8.Group
Separation structure is as shown in table 1.
[embodiment 9]
The preparation of composition XN-9, preparation step:
(1) synthesis of imidazoline type amphoteric surfactant
A, 19 grams of C are added in a kettle10H19COOH and 10 gram of hydroxyethyl ethylenediamine is warming up to 100 DEG C, adjusts reaction
Kettle vacuum degree is reacted 6 hours to effluent state it is further heated up to 200 DEG C, is stopped reaction and is obtained imidazoline intermediate；
B, obtained imidazoline intermediate is reacted by 15 grams and 19 grams of chloroethyl sodium sulfonates are added in reaction kettle, it is anti-in 80 DEG C
It answers 5 hours, obtains the imidazoline type amphoteric surfactant；
(2) preparation of foam discharging agent composition
By imidazoline type amphoteric surfactant, AOS16-18Being dissolved in salinity with calcium carbonate 1:9:1 in mass ratio is
200000mg/L, pH value be 3 water in, be uniformly mixed, be configured to the solution of 1.0wt% to get foam discharging agent composition XN-9.Group
Separation structure is as shown in table 1.
[embodiment 10]
The preparation of composition XN-10, preparation step:
(1) synthesis of imidazoline type amphoteric surfactant
A, 20 grams of C are added in a kettle12H25COOH and 10 gram of hydroxyethyl ethylenediamine is warming up to 100 DEG C, adjusts reaction
Kettle vacuum degree is reacted 6 hours to effluent state it is further heated up to 200 DEG C, is stopped reaction and is obtained imidazoline intermediate；
B, obtained imidazoline intermediate is reacted by 15 grams and 9 grams of chloropropionic acid sodium are added in reaction kettle, it is small in 80 DEG C of reactions 4
When, obtain the imidazoline type amphoteric surfactant；
(2) preparation of foam discharging agent composition
By imidazoline type amphoteric surfactant, AOS16-18It is 200000mg/L, pH value that mass ratio 1:2, which is dissolved in salinity,
To be uniformly mixed, being configured to the solution of 1.0wt% to get foam discharging agent composition XN-10 in 3 water.Component structure such as 1 institute of table
Show.
[embodiment 11]
Referring to SY/T 6465-2000 " foam drainage gas recovery foaming agent evaluation method " standard, the blistering of foam discharging agent is measured
The performances such as power, foam stability, fluid-carrying capability.It the results are shown in Table shown in 2.
[comparative example 1]
The imidazoline type amphoteric surfactant synthesized in [embodiment 1] and nano silica are used, α-alkene is added without
Sulfonated hydrocarbon, in mass ratio 1:1 are dissolved in salinity as 50000mg/L, in the water that pH value is 7, are uniformly mixed, are configured to
The solution of 1.0wt% is prepared into foam discharging agent composition, carries out foaming water discharge performance test with [embodiment 11], the results are shown in Table 3 institutes
Show.
[comparative example 2]
The alpha-alkene sulfonate and nano silica in [embodiment 1] are used, the imidazoline type both sexes of synthesis are added without
Surfactant, in mass ratio 1:1 are dissolved in salinity as 50000mg/L, in the water that pH value is 7, are uniformly mixed, are configured to
The solution of 1.0wt% is prepared into foam discharging agent composition, carries out foaming water discharge performance test with [embodiment 11], the results are shown in Table 3 institutes
Show.
[comparative example 3]
In mass ratio by the imidazoline type amphoteric surfactant, petroleum sulfonate and silica of [embodiment 1] preparation
It is 50000mg/L that 1:1:1, which is dissolved in salinity, and pH value is prepared to be uniformly mixed, being configured to the solution of 1.0wt% in 7 water
At foam discharging agent composition, foaming water discharge performance test is carried out with [embodiment 11], the results are shown in Table shown in 3.
[comparative example 4]
The imidazoline type amphoteric surfactant, lauryl sodium sulfate and silica of [embodiment 1] preparation are pressed into matter
Amount is dissolved in salinity than 1:1:1 as 50000mg/L, in the water that pH value is 7, is uniformly mixed, is configured to the solution of 1.0wt%,
It is prepared into foam discharging agent composition, foaming water discharge performance test is carried out with [embodiment 11], the results are shown in Table shown in 3.
[comparative example 5]
Imidazoline type amphoteric surfactant, enuatrol and silica 1:1:1 in mass ratio prepared by [embodiment 1]
Being dissolved in salinity is 50000mg/L, and pH value is prepared into bubble row to be uniformly mixed, being configured to the solution of 1.0wt% in 7 water
Agent composition carries out foaming water discharge performance test with [embodiment 11], the results are shown in Table shown in 3.
The component structure of foam discharging agent composition in 1 embodiment of table
| Foaming agent | R1 | R2 | Y | AOS | Nano particle | I: II: nanoparticle mass ratio | Salinity mg/L | PH value |
| XN-1 | C12H25 | CH2 | COO- | AOS14-16 | Silica | 1:1:1 | 50000 | 7 |
| XN-2 | C14H27 | C3H6 | SO3 - | AOS14-18 | Silica | 1:5:4 | 150000 | 3 |
| XN-3 | C10H21 | C2H4 | COO- | AOS16-18 | Silica | 1:2:3 | 80000 | 5 |
| XN-4 | C16H33 | C2H4 | SO3 - | AOS14-16 | Silica | 1:0.5:3 | 100000 | 5 |
| XN-5 | C18H35 | C2H4 | SO3 - | AOS14-18 | Silica | 1:10:5 | 100000 | 3 |
| XN-6 | C12H23 | CH2 | COO- | AOS16-18 | Silica | 1:3:4 | 150000 | 5 |
| XN-7 | C12H25 | C3H6 | COO- | AOS14-16 | Silica | 1:0.8:5 | 100000 | 3 |
| XN-8 | C8H17 | C2H4 | COO- | AOS16-18 | Hectorite | 1:8:2 | 100000 | 7 |
| XN-9 | C10H19 | C2H4 | SO3 - | AOS16-18 | Calcium carbonate | 1:9:1 | 200000 | 3 |
| XN-10 | C12H25 | C2H4 | COO- | AOS16-18 | / | 1:2:0 | 200000 | 3 |
The foaming properties of foam discharging agent composition in 2 embodiment of table
| Foam discharging agent composition | Roche foam height mm | 5min foam height mm | Liquid carry over mL |
| XN-1 | 279 | 259 | 178 |
| XN-2 | 240 | 236 | 157 |
| XN-3 | 275 | 256 | 170 |
| XN-4 | 269 | 253 | 168 |
| XN-5 | 260 | 249 | 167 |
| XN-6 | 241 | 236 | 160 |
| XN-7 | 270 | 252 | 169 |
| XN-8 | 266 | 254 | 166 |
| XN-9 | 234 | 230 | 152 |
| XN-10 | 239 | 220 | 150 |
The foaming properties of foam discharging agent composition in 3 comparative example of table
| Foam discharging agent | Roche foam height mm | 5min foam height mm | Liquid carry over mL |
| Comparative example 1 | 131 | 110 | 95 |
| Comparative example 2 | 101 | 65 | 20 |
| Comparative example 3 | 153 | 124 | 103 |
| Comparative example 4 | 105 | 70 | 20 |
| Comparative example 5 | 50 | 36 | 0 |
Claims (10)
1. a kind of salt tolerant acidproof water pumping gas production foam discharging agent composition, based on mass fraction, including following components:
(1) 1 part of imidazoline type amphoteric surfactant；
(2) 0.2~20 parts of alpha-alkene sulfonate；
(3) 0-10 parts of nano particles；
The imidazoline type amphoteric surfactant has following general molecular formula:
Wherein, R1For C8~C30Fat-based；R2For C1~C5Alkylidene or substituted alkylene in any one；Y is formula
(I) molecule shown in is in the anionic group of electroneutral.
2. salt tolerant acidproof water pumping gas production foam discharging agent composition according to claim 1, it is characterised in that the R1It is selected from
C8~C18Alkyl, C8~C18Alkenyl；R2Selected from C1~C3Alkylidene, C1~C3Substituted alkylene in any one；Y
Selected from-COO—、-SO3 —、-HPO4 —At least one of.
3. salt tolerant acidproof water pumping gas production foam discharging agent composition according to claim 1, it is characterised in that the Y choosing
From-COO—、-SO3 —At least one of.
4. salt tolerant acidproof water pumping gas production foam discharging agent composition according to claim 1, it is characterised in that the α-alkene
Sulfonated hydrocarbon has following general molecular formula:
R3- HC=CH-CH2-SO3M, (II)；
R in formula3For C5~C30Alkyl, M is any one metal ion in alkali metal.
5. salt tolerant acidproof water pumping gas production foam discharging agent composition according to claim 4, it is characterised in that the R3It is selected from
C8~C22Alkyl.
6. salt tolerant acidproof water pumping gas production foam discharging agent composition according to claim 1, it is characterised in that the nanometer
Particle is at least one of nano silica, nanometer hectorite, nanometer calcium carbonate.
7. salt tolerant acidproof water pumping gas production foam discharging agent composition according to claim 1, it is characterised in that described acidproof resistance to
Salt foam discharging agent composition, in terms of mass fraction, comprising: (1) 1 part of imidazoline type amphoteric surfactant；(2) 0.5-10 parts of α-alkene
Sulfonated hydrocarbon；(3) 1-5 parts of nano particles.
8. a kind of preparation method of any salt tolerant acidproof water pumping gas production foam discharging agent composition of claim 1~7, including
Following steps:
(1) synthesis of imidazoline type amphoteric surfactant
A, R is added in a kettle1COOH and hydroxyethyl ethylenediamine, are reacted, and imidazoline intermediate is obtained；
B, by imidazoline intermediate, sulfonated reagent or carboxylating reagent according to molar ratio 1:(1~3) it is added in reaction kettle, in 60~
100 DEG C are reacted 1~10 hour, and the imidazoline type amphoteric surfactant is obtained, and the sulfonated reagent is hydroxyl sulfoacid
And its salt, halogenosulfonic acid and its salt；Carboxylating reagent is halogenated carboxylic acid and its salt；
(2) preparation of foam discharging agent composition
Imidazoline type amphoteric surfactant, alpha-alkene sulfonate and nano particle are uniformly mixed by required mass fraction with water
Obtain salt tolerant acidproof water pumping gas production foam discharging agent composition.
9. a kind of any acidproof water pumping gas production of salt tolerant of claim 1~7 is with foam discharging agent composition in water pumping gas production
Application.
10. the application in water pumping gas production of salt tolerant acidproof water pumping gas production foam discharging agent composition according to claim 9,
It is characterized in that the formation water salinity that the application is applicable in gas well is 0~200000ppm, being applicable in pH value is 3~7.
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