CN108251091A - A kind of anti-salinity, condensate oil fluid foaming agent and preparation method thereof - Google Patents
A kind of anti-salinity, condensate oil fluid foaming agent and preparation method thereof Download PDFInfo
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- CN108251091A CN108251091A CN201611246517.4A CN201611246517A CN108251091A CN 108251091 A CN108251091 A CN 108251091A CN 201611246517 A CN201611246517 A CN 201611246517A CN 108251091 A CN108251091 A CN 108251091A
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- Prior art keywords
- salinity
- foaming agent
- oil fluid
- condensate oil
- fluid foaming
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- 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
Abstract
The invention discloses a kind of anti-salinities, condensate oil fluid foaming agent and preparation method thereof, are made of the raw material of following mass percent：Cocamidopropyl propyl amide amine oxide 70%~90%；Anion surfactant 5~20%；Cationic surfactant 3~10%.The anti-salinity, condensate oil fluid foaming agent effectively resist the influence of salinity and condensate to foaming agent, realize and normally blister and take liquid, improve foam drainage gas recovery effect.
Description
【Technical field】
The present invention relates to a kind of anti-salinities, condensate oil fluid foaming agent and preparation method thereof, are a kind of gas field foams
Water discharge agent belongs to oil gas field chemical technology field.
【Background technology】
In construction of natural gas fields process, with gradually reducing for gas reservoir pressure and natural gas flow speed, it is impossible to provide enough
Energy when taking the liquid in pit shaft out of, drop will sink, and fall into shaft bottom and form hydrops, increase the back pressure to gas-bearing formation, limit gas
Capacity of well；Wellbore effusion amount is too big, and can kill gas well makes it completely lose production capacity.
Technology of gas recovery by foam drainage is for the exploitation of production Gas Reservoirs gas well and one of research is helped excavating technology technology, has and throws
The features such as providing less, be at low cost, quick.The technology be by certain surfactant or high molecular polymer injection well bottom, by
It in the agitation of natural gas flow, is come into full contact with shaft bottom hydrops, generates the resistance aqueous foam of a large amount of low-density, it is made to be mixed in gas-liquid two-phase
It closes perpendicular flow and generates a variety of physics such as foam, dispersion, drag reduction, washing, chemical effect in the process, reduce in pit shaft and " slip damage
Lose ", so as to reduce gravity gradient in friction loss and well in flowing well oil pipe, shaft bottom back pressure is effectively reduced, is pressed in shaft bottom
In the case that power is identical with well head pressure, shaft bottom hydrops is made to be more easy to be carried to ground from shaft bottom by air-flow, is adopted so as to reach draining
The purpose of gas.
The performance of foaming agent is the key that foam drainage gas recovery technique.In gas well at the same time containing mineralized water and condensate,
Water flooding inorganic ion especially counter ion Na+, high-valence cationic Ca2+Deng Surfactant liquid film surface charge distribution
Have a significant impact, they make the electrostatic repulsion of the electric double layer effect that absorption is formed in the surfactant molecule of liquid-vapor interface
Weaken, liquid film is thinning when drain accelerates, the stability decrease of foam.It, can be serious since condensate is a kind of antifoaming agent in itself
The foam performance of foaming agent is restricted, and then influences its fluid-carrying capability, foaming water discharge effect is caused to be deteriorated.For simultaneously containing mineralized water
With this kind of well of condensate, using multi-component compound foaming agent, certain performances of surfactant have synergistic effect, can also adopt
Make foaming agent with both sexes or polymeric surfactant, make it have certain oil-resistant characteristic and anti-high salinity performance, to protect
Demonstrate,prove certain foamability and foam carrier amount.
【Invention content】
The present invention provides a kind of anti-salinity, condensate oil liquid for the gas well containing a large amount of mineralized waters and condensate simultaneously
Body foaming agent and preparation method thereof effectively resists the influence of salinity and condensate to foaming agent, realizes and normally blisters and take liquid,
Improve foam drainage gas recovery effect.
The present invention seeks to what is be achieved through the following technical solutions：
A kind of anti-salinity, condensate oil fluid foaming agent, are made of the raw material of following mass percent：
Cocamidopropyl propyl amide amine oxide 70%~90%；
Anion surfactant 5~20%；
Cationic surfactant 3~10%.
As a further improvement on the present invention, the anion surfactant is fatty alcohol polyoxyethylene ether sulfuric acid
Sodium.
As a further improvement on the present invention, the cationic surfactant is dodecyl front three ammonium chloride.
As a further improvement on the present invention, it is made of the raw material of following mass percent：
Cocamidopropyl propyl amide amine oxide 80%,
Sodium sulfate of polyethenoxy ether of fatty alcohol 12%,
Dodecyl front three ammonium chloride 8%.
As a further improvement on the present invention, the foaming agent is under conditions of anti-salinity 250g/L, foam stabilizing energy
Power is 126mm, and it is 73% that 15min, which takes liquid rate, under conditions of condensation oil content 30%, foaming capacity 118mm, 15min
Take liquid rate 65%.
As a further improvement on the present invention, mass concentration is 3.0 ‰~5.0 ‰ when the foaming agent uses.
A kind of anti-salinity, the preparation method of condensate oil fluid foaming agent, include the following steps：
Raw material, cocamidopropyl propyl amide amine oxide, cationic surfactant and the moon are weighed according to mass percent proportioning
Ionic surface active agent is compounded, and forms anions and canons and amphoteric surfactant compound system, the negative ions of generation
The orderly overlaying structure of electric double layer；Anti- salinity, condensate oil fluid foaming agent are obtained.
Relative to the prior art, the present invention has the following advantages：
The anti-salinity of the present invention, condensate oil type foaming agent have by amphoteric surfactant cocamidopropyl propyl amide amine oxide with
Cationic surfactant and anion surfactant compound to be formed, and form anions and canons and are answered with amphoteric surfactant
With system, the orderly overlaying structure of negative ions electric double layer of generation is effectively improved system distribution of charges, realizes liquid surface work
The significantly promotion of property agent foaming capacity.It is preferable for production mineralized water and condensate well foam stability and fluid-carrying capability, it fits
Water-producing gas well for salinity, containing condensate.The anti-salinity of the present invention, condensate oil type foaming agent are suitable for 90 DEG C of temperature,
Anti- salinity 250g/L, condensate oil 30%, methanol tolerance 20%, under conditions of anti-salinity 250g/L, foam stabilizing ability can
Up to 126mm, 15min takes liquid rate 73%, and under conditions of condensation oil content 30%, foaming capacity is taken up to 118mm, 15min
Liquid rate 65%, field test bubble line up power up to more than 90%, and the product is nontoxic, degradable, not can cause environmental pollution.It should
Foaming water discharge agent with air-liquid component can not chemically react with the medicaments compatibility such as methanol, corrosion inhibiter, antisludging agent, do not increase gas
The toxicity of body and combustion product, not etching apparatus and pipeline.
The preparation method of the present invention is simple, and conventional compounding can be obtained by, and be suitble to the use of oil well.
【Specific embodiment】
With reference to specific embodiment, the specific embodiment of the present invention is described in detail, but the present invention is not limited to
The embodiment.In order to which the public is made to have thorough understanding to the present invention, it is described in detail in present invention below preferably applies example specific
Details.
The anti-salinity, condensate oil type foaming agent are made of the raw material of following mass percent：
Cocamidopropyl propyl amide amine oxide 70%~90%
Sodium sulfate of polyethenoxy ether of fatty alcohol 5~20%；
Dodecyl front three ammonium chloride 3~10%；
Blowing agent component performance：
Cocamidopropyl propyl amide amine oxide molecular formula is RCONH (CH2)3N(CH2)2O, R=cocoyl are foaming agent host agent,
It is a kind of amphoteric surfactant, is soluble in polar organic solvent, aqueous solution is under acid and alkaline condition respectively in cation
Type and non-ionic, easily foaming, foam stabilizing, have stronger salt resistance, oil resistant ability, with anion, cation, amphoteric ion and non-
Ionic surface active agent intermiscibility is good, foaming abundancy and stablize.
Sodium sulfate of polyethenoxy ether of fatty alcohol (C14H29O5NaS), RO (CH2CH2O)3SO3Na R:C14Alkyl, a kind of white
Or light yellow gel shape lotion powder is the anion surfactant of function admirable.Water is dissolved in, there is excellent emulsification, profit
Wet, solubilized and foam performance, dissolubility is good, and hard water resistance property is strong, and biological degradability is high, and compatibility is good, and stability is good, cost of material
Low, the oxyethylene group of ether-containing key enhances oil-resistant characteristic.
Dodecyl front three ammonium chloride, C12H25(CH3)3NCL, a kind of cationic surfactant, white crystalline body to powder
Last shape, water-soluble and ethyl alcohol.There is good compatibility with cation, amphoteric surfactant and nonionic surfactant.
Its chemical stability is good, heat-resisting, fast light, pressure-resistant, strong alkali-acid resistance, has the performances such as excellent permeability, emulsibility, no
Preferably in 120 DEG C or more long-time heatings.
Embodiment 1
The anti-salinity of the present embodiment, condensate oil type foaming agent are composed of the following components：Cocamidopropyl propyl amide amine oxide
90%, sodium sulfate of polyethenoxy ether of fatty alcohol 7%, dodecyl front three ammonium chloride 3%, anti-salinity 250g/L's after compounding
Under the conditions of, for foam stabilizing ability up to 112mm, 15min takes liquid rate 68%, and under conditions of condensation oil content 30%, foam energy
For power up to 103mm, 15min takes liquid rate 61%.
Embodiment 2
The present embodiment oil resistant type foaming agent is composed of the following components：Cocamidopropyl propyl amide amine oxide 90%, fatty alcohol polyoxy
Ethylene ether sodium sulfate 5%, dodecyl front three ammonium chloride 5%, after compounding under conditions of anti-salinity 250g/L, foam stabilizing energy
For power up to 117mm, 15min takes liquid rate 65%, under conditions of condensation oil content 30%, foaming capacity up to 107mm,
15min takes liquid rate 59%.
Embodiment 3
The present embodiment oil resistant type foaming agent is composed of the following components：Cocamidopropyl propyl amide amine oxide 80%, fatty alcohol polyoxy
Ethylene ether sodium sulfate 12%, dodecyl front three ammonium chloride 8%, after compounding under conditions of anti-salinity 250g/L, foam stabilizing
For ability up to 126mm, 15min takes liquid rate 73%, under conditions of condensation oil content 30%, foaming capacity up to 118mm,
15min takes liquid rate 65%.
Embodiment 4
The present embodiment oil resistant type foaming agent is composed of the following components：Cocamidopropyl propyl amide amine oxide 80%, fatty alcohol polyoxy
Ethylene ether sodium sulfate 10%, dodecyl front three ammonium chloride 10%, after compounding under conditions of anti-salinity 250g/L, foam stabilizing
For ability up to 109mm, 15min takes liquid rate 71%, under conditions of condensation oil content 30%, foaming capacity up to 112mm,
15min takes liquid rate 64%.
Embodiment 5
The present embodiment oil resistant type foaming agent is composed of the following components：Cocamidopropyl propyl amide amine oxide 70%, fatty alcohol polyoxy
Ethylene ether sodium sulfate 20%, dodecyl front three ammonium chloride 10%, after compounding under conditions of anti-salinity 250g/L, foam stabilizing
For ability up to 97mm, 15min takes liquid rate 63%, under conditions of condensation oil content 30%, foaming capacity up to 93mm,
15min takes liquid rate 56%.
Above-described embodiment shows moderate resistance salinity of the present invention, condensate oil type foaming agent by cocamidopropyl propyl amide amine oxide
80%, sodium sulfate of polyethenoxy ether of fatty alcohol 12%, the ratio compounding of dodecyl front three ammonium chloride 8%, in 90 DEG C, total mineralising
Spend it is most strong for foaming capacity and fluid-carrying capability under the conditions of 250g/L, anti-30% condensate, most economical concentration range for 3.0 ‰~
5.0‰。
Claims (7)
1. a kind of anti-salinity, condensate oil fluid foaming agent, which is characterized in that by the raw material group of following mass percent
Into：
Cocamidopropyl propyl amide amine oxide 70%~90%；
Sulfates anion surfactant 5~20%；
Quaternary cationic surfactant 3~10%.
2. a kind of anti-salinity according to claim 1, condensate oil fluid foaming agent, which is characterized in that the sulphur
Hydrochlorate analog anion surfactants are sodium sulfate of polyethenoxy ether of fatty alcohol.
3. a kind of anti-salinity according to claim 1, condensate oil fluid foaming agent, which is characterized in that the season
Ammonium salt cationoid surfactant is dodecyl front three ammonium chloride.
4. a kind of anti-salinity according to claim 1, condensate oil fluid foaming agent, which is characterized in that by following matter
Measure the raw material composition of percentage：
Cocamidopropyl propyl amide amine oxide 80%,
Sodium sulfate of polyethenoxy ether of fatty alcohol 12%,
Dodecyl front three ammonium chloride 8%.
5. a kind of anti-salinity according to claim 1, condensate oil fluid foaming agent, which is characterized in that described rises
Infusion is under conditions of anti-salinity 250g/L, and foam stabilizing ability is 126mm, and it is 73% that 15min, which takes liquid rate, in condensation oil content
Under conditions of 30%, foaming capacity 118mm, 15min take liquid rate 65%.
6. a kind of anti-salinity according to claim 1, condensate oil fluid foaming agent, which is characterized in that described rises
Mass concentration is 3.0 ‰~5.0 ‰ when infusion uses.
7. a kind of anti-salinity described in claim 1, the preparation method of condensate oil fluid foaming agent, which is characterized in that packet
Include following steps：
Raw material, cocamidopropyl propyl amide amine oxide, Sulfates cationic surfactant are weighed according to mass percent proportioning
It is compounded with quaternary ammonium salt anion surfactant, forms anions and canons and amphoteric surfactant compound system, produced
The raw orderly overlaying structure of negative ions electric double layer；Anti- salinity, condensate oil fluid foaming agent are obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611246517.4A CN108251091A (en) | 2016-12-29 | 2016-12-29 | A kind of anti-salinity, condensate oil fluid foaming agent and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611246517.4A CN108251091A (en) | 2016-12-29 | 2016-12-29 | A kind of anti-salinity, condensate oil fluid foaming agent and preparation method thereof |
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| CN111826148A (en) * | 2019-04-15 | 2020-10-27 | 中国石油化工股份有限公司 | Salt-resistant foaming agent and preparation method and application thereof |
| CN112206716A (en) * | 2020-10-26 | 2021-01-12 | 蒲城驭腾新材料科技有限公司 | Low-surface-tension hydrocarbon surfactant and preparation method thereof |
| CN112812761A (en) * | 2021-01-15 | 2021-05-18 | 四川省威沃敦化工有限公司 | Foaming agent with high temperature resistance, high salt content and high condensate oil content as well as preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111826148A (en) * | 2019-04-15 | 2020-10-27 | 中国石油化工股份有限公司 | Salt-resistant foaming agent and preparation method and application thereof |
| CN112206716A (en) * | 2020-10-26 | 2021-01-12 | 蒲城驭腾新材料科技有限公司 | Low-surface-tension hydrocarbon surfactant and preparation method thereof |
| CN112812761A (en) * | 2021-01-15 | 2021-05-18 | 四川省威沃敦化工有限公司 | Foaming agent with high temperature resistance, high salt content and high condensate oil content as well as preparation method and application thereof |
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Application publication date: 20180706 |