CN104449632B - A kind of oil resistant foaming agent and preparation method thereof - Google Patents
A kind of oil resistant foaming agent and preparation method thereof Download PDFInfo
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- CN104449632B CN104449632B CN201410704531.9A CN201410704531A CN104449632B CN 104449632 B CN104449632 B CN 104449632B CN 201410704531 A CN201410704531 A CN 201410704531A CN 104449632 B CN104449632 B CN 104449632B
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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
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- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
Abstract
The invention belongs to oil gas field chemical technology field, and in particular to a kind of oil resistant foaming agent is made up of the alkyl CAB that percetage by weight is 50 ~ 70%, the anion surfactant that percetage by weight is 5 ~ 15%, the cetyl trimethylammonium bromide that percetage by weight is 10 ~ 20%, the water that percetage by weight is 10 ~ 20%.Oil resistant type foaming agent of the present invention adds foaming capacity after water-producing gas well, and by force, foam stability is good, and for production condensate well, fluid-carrying capability is still very strong, it is adaptable to which moderate salinity, the water-producing gas well containing condensate are used.
Description
Technical field
The invention belongs to oil gas field chemical technology field, and in particular to a kind of oil resistant foaming agent.
Background technology
The natural gas well is in normal production, and liquid is carried to ground with the agitation of air-flow, but works as its own energy not
When being enough to carry liquid in well, it is necessary to by artificially supplementing energy to gas well, make the fluid removal ground in gas well.
Foam drainage gas recovery is by its cost is low, instant effect, equipment are simple, construction easily and does not influence gas well normally to produce
Advantage turn into most of gas field water drainage-gas recovery technologies agent technology, the technique mainly certain energy is injected from well head to shaft bottom
The surfactant of water foaming is enough met, after shaft bottom ponding is contacted with foaming agent, by the agitation of natural gas flow, generation is a large amount of low close
Resistance aqueous foam is spent, ground is carried to from shaft bottom with air-flow.
Foaming water discharge agent（Oil resistant foaming agent）More mainly there is the surfactant and macromolecule of special molecular structure
Contain hydrophilic radical and lipophilic group on polymer, its molecule, with amphiphilic, oiliness a part of in the water of stratum can be resisted
Material, but for the larger gas well of condensation oil content, existing foaming water discharge agent has little effect, and some gas wells are even added
A large amount of foam discharging agents still can not normally take the phenomenon of liquid production.Fluorocarbon surfactant oil resistant ability is stronger, but its is expensive, into
Ben Taigao, at present still can not large-scale popularization use.
The content of the invention
The purpose of the present invention be overcome existing oil resistant foaming agent draining take liquid effect difference and fluorocarbon surfactant into
The problem of this is high.
Therefore, the invention provides a kind of oil resistant foaming agent, by percetage by weight for 50 ~ 70% alkyl CAB,
Anion surfactant that percetage by weight is 5 ~ 15%, the cetyl trimethylammonium bromide that percetage by weight is 10 ~ 20%,
Percetage by weight constitutes for 10 ~ 20% water.
The alkyl CAB is lauroylamidopropyl betaine.
The anion surfactant is sodium cetanesulfonate.
Present invention also offers the preparation method of oil resistant foaming agent, preparation process is as follows：It is 5 ~ 15% by percetage by weight
Anion surfactant is proportionally added into the water that percetage by weight is 10 ~ 20%, is stirred, is added until completely dissolved
Cetyl trimethylammonium bromide, is stirred to being completely dissolved, and is eventually adding the alkyl propyl group beet that percetage by weight is 10 ~ 20%
Alkali, stirs and stands 30min, to being completely dissolved.
The alkyl CAB percetage by weight is 50%, and the percetage by weight of sodium cetanesulfonate 15% is, 16
Alkyl trimethyl ammonium bromide percetage by weight is 20%, and water percetage by weight is 15%.
Beneficial effects of the present invention：Foaming capacity is strong after oil resistant type foaming agent addition water-producing gas well of the present invention, foam stabilization
Property it is good, for production condensate well, fluid-carrying capability is still very strong, it is adaptable to which moderate salinity, the water-producing gas well containing condensate make
With.
The anti-salinity ability 250g/L of the oil resistant foaming agent, condensate oil ability 30%, methanol tolerance ability 20%, in condensate
Under conditions of content 30%, its foaming capacity is up to 122mm, and 15min takes liquid rate 62%, and the medicament term of validity is long, field test gas well
Rate of growth is up to more than 74%.The product is nontoxic, degradable, and environment will not be polluted.The foaming agent can be with methanol, inhibition
The medicament compatibility such as agent, antisludging agent, does not chemically react with air-liquid component, does not increase the toxicity of gas and combustion product, is stale-proof
Lose equipment and pipeline.
Embodiment
Embodiment 1：
In order to solve the problem of liquid effect difference and high fluorocarbon surfactant cost are taken in existing oil resistant foaming agent draining.
It is 5 by alkyl CAB that percetage by weight is 50 ~ 70%, percetage by weight the invention provides a kind of oil resistant foaming agent
~ 15% anion surfactant, the cetyl trimethylammonium bromide that percetage by weight is 10 ~ 20%, percetage by weight are
10 ~ 20% water composition, wherein alkyl CAB are lauroylamidopropyl betaine.
The present embodiment oil resistant type foaming agent is composed of the following components：Lauroylamidopropyl betaine 70%, cetyl sulfonic acid
Foaming capacity is up to 184mm after sodium 5%, cetyl trimethylammonium bromide 10%, water 15%, compounding, and 15min takes liquid rate 77%,
During condensation oil content 30%, liquid rate is taken up to 62%.
Oil resistant foaming agent preparation process：Percetage by weight is proportionally added into weight hundred for 5% anion surfactant
Fraction adds 5% cetyl trimethylammonium bromide until completely dissolved in 15% water, to stir, and stirs to completely molten
Solution, is eventually adding the alkyl CAB that percetage by weight is 70%, stirs and stand 30min, to being completely dissolved.
Lauroylamidopropyl betaine, molecular formula CH3(CH2)10CONH(CH2)3N+(CH3)2 CH2COO-, foaming agent host,
Belong to amphoteric surfactant, excellent dissolubility and stability be respectively provided with acid and alkalescence condition, present respectively sun from
Son and anionic property, often with cation, anion, nonionic surfactant compatibility, foaming abundancy and stablize, biological degradability
It is good, and have good viscosity adjustment effect.
Sodium cetanesulfonate, CH3(CH2)10SO3Na, a kind of white or micro-yellow powder, are a kind of the moon of good water solubility
Ionic surface active agent, there is good wetting, emulsification, scattered, foam and dirt-removing power in hard water, and biological degradability is good.
Cetyl trimethylammonium bromide, CH3(CH2)15(CH3)3A kind of NBr, cationic surfactant is white or shallow
Yellow crystal body is soluble in isopropanol to powdered, water-soluble, and a large amount of foams are produced during concussion, with cation, nonionic,
Amphoteric surfactant is respectively provided with good compatibility.With performances such as excellent infiltration, biological degradability and sterilizations.It is chemical steady
It is qualitative good, heat-resisting, fast light, pressure-resistant, strong alkali-acid resistance.
Anion surfactant sodium cetanesulfonate solution and cationic surfactant cetyl trimethyl bromine
Changing ammonium salt solution will not react below 150 DEG C.
Embodiment 2：
The present embodiment oil resistant type foaming agent is composed of the following components：Lauroylamidopropyl betaine 60%, cetyl sulfonic acid
Foaming capacity is up to 184mm after sodium 10%, cetyl trimethylammonium bromide 15%, water 15%, compounding, and 15min takes liquid rate 77%,
During condensation oil content 30%, liquid rate is taken up to 62%.
Embodiment 3：
The present embodiment oil resistant type foaming agent is composed of the following components：Lauroylamidopropyl betaine 50%, cetyl sulfonic acid
Foaming capacity is up to 184mm after sodium 15%, cetyl trimethylammonium bromide 20%, water 15%, compounding, and 15min takes liquid rate 77%,
During condensation oil content 30%, liquid rate is taken up to 65%.
In summary, foaming capacity is strong after oil resistant type foaming agent addition water-producing gas well of the present invention, and foam stability is good, for
Condensate well is produced, fluid-carrying capability is still very strong, it is adaptable to which moderate salinity, the water-producing gas well containing condensate are used.
The anti-salinity ability 250g/L of the oil resistant foaming agent, condensate oil ability 30%, methanol tolerance ability 20%, in condensate
Under conditions of content 30%, its foaming capacity is up to 122mm, and 15min takes liquid rate more than 62%, and the medicament term of validity is long, field test
Oil/gas well stimulation rate is up to more than 74%.The product is nontoxic, degradable, and environment will not be polluted.The foaming agent can with methanol,
The medicament compatibility such as corrosion inhibiter, antisludging agent, does not chemically react with air-liquid component, does not increase the toxicity of gas and combustion product,
Not etching apparatus and pipeline.
The properties of product method of testing that the present embodiment is not described in detail belongs to the known or common testing methods of the industry, this
In do not describe one by one.
It is exemplified as above be only to the present invention for example, do not constitute the limitation to protection scope of the present invention, it is all
It is to be belonged to the same or analogous design of the present invention within protection scope of the present invention.
Claims (3)
1. a kind of oil resistant foaming agent, it is characterised in that：Alkyl CAB, weight percent by percetage by weight for 50 ~ 70%
Anion surfactant that number is 5 ~ 15%, the cetyl trimethylammonium bromide that percetage by weight is 10 ~ 20%, weight percent
Number constitutes for 10 ~ 20% water；
The alkyl CAB is lauroylamidopropyl betaine, and the anion surfactant is cetyl sulfonic acid
Sodium.
2. the preparation method of a kind of oil resistant foaming agent according to claim 1, it is characterised in that preparation process is as follows：Will
The anion surfactant that percetage by weight is 5 ~ 15% is proportionally added into the water that percetage by weight is 10 ~ 20%, and stirring is equal
It is even, cetyl trimethylammonium bromide is added until completely dissolved, is stirred to being completely dissolved, and it is 10 to be eventually adding percetage by weight
~ 20% alkyl CAB, stirs and stands 30min, to being completely dissolved.
3. a kind of preparation method of oil resistant foaming agent according to claim 2, it is characterised in that the alkyl propyl group beet
Alkali percetage by weight is 50%, and sodium cetanesulfonate percetage by weight is 15%, cetyl trimethylammonium bromide weight percent
Number is 20%, and water percetage by weight is 15%.
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| CN201410704531.9A CN104449632B (en) | 2014-11-28 | 2014-11-28 | A kind of oil resistant foaming agent and preparation method thereof |
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| CN201410704531.9A CN104449632B (en) | 2014-11-28 | 2014-11-28 | A kind of oil resistant foaming agent and preparation method thereof |
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| CN104449632B true CN104449632B (en) | 2017-08-04 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106221687A (en) * | 2016-07-21 | 2016-12-14 | 中国石油天然气股份有限公司长庆油田分公司 | A kind of gas field foam drainage rod and preparation method thereof |
| CN106753308A (en) * | 2016-12-28 | 2017-05-31 | 中国石油天然气股份有限公司 | A kind of oil resistant low-water-content foaming agent |
| CN108251091A (en) * | 2016-12-29 | 2018-07-06 | 中国石油天然气股份有限公司 | A kind of anti-salinity, condensate oil fluid foaming agent and preparation method thereof |
| CN109810685B (en) * | 2017-11-20 | 2021-06-11 | 中国石油化工股份有限公司 | Oil displacement agent composition and preparation method and application thereof |
| CN114752367A (en) * | 2021-01-08 | 2022-07-15 | 中国石油天然气股份有限公司 | Composite sterilization foaming agent for shale gas foam well, preparation method and application |
| CN115975620B (en) * | 2023-02-03 | 2024-05-14 | 西安石油大学 | Gas well foam discharging agent and preparation method and application thereof |
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| US7823647B2 (en) * | 2005-10-06 | 2010-11-02 | Baker Hughes Incorporated | Process for foaming a wet hydrocarbon composition |
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| CN102676142A (en) * | 2012-05-28 | 2012-09-19 | 中国石油天然气股份有限公司 | Condensate oil foam discharging agent applied to natural gas extraction |
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