CN105112038B - It is a kind of with steam emulsifying and viscosity-reducing agent for condensed oil and preparation method thereof, application method - Google Patents
It is a kind of with steam emulsifying and viscosity-reducing agent for condensed oil and preparation method thereof, application method Download PDFInfo
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Abstract
The invention discloses a kind of with steam emulsifying and viscosity-reducing agent for condensed oil and preparation method thereof, application method, which includes the component of following parts by weight：75~80 parts of aliphatic amine polyoxyethylene ether carboxylic acid sodium, 10~15 parts of alkaline assistant, 1~5 part of small molecular alcohol；The molecular formula such as formula (1) of the aliphatic amine polyoxyethylene ether carboxylic acid sodium, wherein n are any integer in 12~18, and x is any integer in 2~5, and y is any integer in 2~5.Companion's steam emulsifying and viscosity-reducing agent for condensed oil of the present invention, it is synergist using aliphatic amine polyoxyethylene ether carboxylic acid sodium as host agent, alkaline assistant, small molecular alcohol is that bleeding agent and water compound, gained thinner heat-resistant salt-resistant ability is strong, the energy higher viscous crude of quick emulsification colloidal bitumen content, and have many advantages, such as that viscosity reducing effect is excellent, can be demulsified automatically；Meet the viscosity reduction requirement of high temperature, high salinity and high gum asphalt super-viscous oil, is used with steam injection in being suitble to steam soak to be driven with steam.
Description
Technical field
The invention belongs to oil exploitation thinner technical fields, and in particular to a kind of with steam thick-oil emulsified adhesive-reducing
Agent, while being related to a kind of preparation method and application method with steam emulsifying and viscosity-reducing agent for condensed oil.
Background technology
Viscous crude refers to the crude oil that viscosity is more than 100mPas under reservoir temperature.Viscosity of thickened oil is high, and flow resistance is big, no
Easily exploitation；But viscous crude is larger in the reserves of some countries, does not solve the difficult technical problem of exploitation, it will causes prodigious economic damage
It loses.And solve the problems, such as how thickened oil recovery reduces the solidification point and viscosity of viscous crude firstly the need of the technology of consideration.
Super-viscous oil refers to the crude oil that viscosity is more than 50000mPas, has special high viscosity, the characteristic of high-solidification point,
Difficulty bigger is exploited for common heavy oil.Currently, the main method of exploitation super-viscous oil is steam soak and steam drive etc.
Thermal recovery technology.Steam soak later stage, vapor (steam) temperature reduce, and viscosity of thickened oil increases, and causes crude oil poor in the mobility on stratum, well
Cylinder lifting is difficult, constrains the further exploitation of oil reservoir significantly.
Viscosity of thickened oil, smaller steam injection pressure, raising ground laminar flow can be reduced by injecting efficient emulsifying pour depressor with steam
Kinetic force is a kind of more effective the Technology of Heavy Oil Recovery.Emulsifying pour depressor is the effect by surface reactive material so that thick
Emulsion in oil is converted to O/W types by w/o type, to achieve the purpose that reduce viscosity of thickened oil.The mechanism of thick-oil emulsified adhesive-reducing
Including two aspects：Oil water interfacial tension can be made to decline first, surfactant solution is contacted with viscous crude, stirred at a certain temperature
It mixes or disturbs, oil, which is just in granular form, to be dispersed in surface reactive material aqueous solution, and O/W type emulsion, surface reactive material are formed
Molecular Adsorption forms orientation unimolecule protective film, prevents oil droplet from regrouping, the energy in emulsion flow process around oil droplet
Liquid stream is set to weaken tube wall frictional force and molecule internal friction；Two make, due to the humidification of surface reactive material aqueous solution, to make
Flow resistance substantially reduces, i.e., layer of surface aqueous surfactant solutions moisture film has been adsorbed on tube wall, makes original between tube wall
Friction becomes the friction of aqueous surfactant solution and tube wall, achievees the purpose that flow resistance is remarkably decreased.Therefore, it is noted with steam
The displacement efficiency of injection steam can be improved by entering efficient emulsifying pour depressor, reduce oil water interfacial tension, reduce wellbore lift resistance,
Improve steam injection production economic benefit, be more rounds handle up the later stage improve recovery ratio effective way.
During carrying out reducing thick oil viscosity with steam injection thinner, since vapor (steam) temperature is higher (300 DEG C or more), it is desirable that
Thinner has temperature resistant capability.As in the prior art, patent CN102352228B discloses a kind of super with steam high temperature resistance super
Heavy crude thinner is made of the raw material of following weight：40~65 parts of petroleum sodium sulfonate formaldehyde condensation products, polyoxyethylene nonyl phenyl
Vinethene sodium sulfonate or 10~30 parts of sodium sulfate of polyethenoxy ether of fatty alcohol, 1.0~2.0 parts of sodium bicarbonate, water 10.0~30.0
Part, high temperature film spreading agent XLB-1 2.0~5.0.Thinner viscosity break ratio height, the high temperature resistant, can meet general super-viscous oil scene
It uses.But since some super-heavy oil deposit formation water salinitys are relatively high, the using effect of thinner usually also suffers from ground
The influence of layer water salinity；If formation water salinity is high, when especially calcium and magnesium ion content is high in water flooding, viscosity reduction can be reduced
The solubility of agent molecule in water, changes the hydrophile-lipophile balance of thinner, so that the emulsifying capacity of thinner is reduced and even disappears.
Meanwhile generally there are the higher features of the heavy components contents such as colloidal bitumen for super-viscous oil, they form relatively strong on oil-water interfaces
Adsorbed film, emulsification molecule be difficult oil-water interfaces replace make viscous oil emulsion occur turn to and reduce viscosity.Therefore, exist
It is existing to inject thinner with steam in the case of super-heavy oil deposit formation water salinity height, super-viscous oil heavy components content height
There are emulsifying capacities to reduce, penetrating power is not strong, cannot give full play to the problem of its viscosity reduction acts on.
Invention content
The object of the present invention is to provide a kind of with steam emulsifying and viscosity-reducing agent for condensed oil, not only has preferable temperature-resistant anti-salt energy
Power, and there is stronger penetrating power, existing thinner is solved in super-heavy oil deposit formation water salinity height, super-viscous oil heavy group
The problem of effect of its viscosity reduction cannot be given full play in the case of point content height.
Second object of the present invention is to provide a kind of preparation method with steam emulsifying and viscosity-reducing agent for condensed oil.
Third object of the present invention is to provide a kind of application methods with steam emulsifying and viscosity-reducing agent for condensed oil.
In order to achieve the goal above, the technical solution adopted in the present invention is：
A kind of companion's steam emulsifying and viscosity-reducing agent for condensed oil, includes the component of following parts by weight：Aliphatic amine polyoxyethylene ether carboxylic
75~80 parts of sour sodium, 10~15 parts of alkaline assistant, 1~5 part of small molecular alcohol；Wherein, the aliphatic amine polyoxyethylene ether carboxylic acid sodium
Molecular formula be：
Wherein, n is any integer in 12~18, and x is any integer in 2~5, and y is any integer in 2~5.
The alkaline assistant is any one or combination in sodium bicarbonate, kodalk, triethanolamine.
The small molecular alcohol is any one or combination in isobutanol, n-butanol, isopropanol.
A kind of companion's steam emulsified viscous oil (water base) thinner, includes the component of following parts by weight：Fatty amine polyoxy second
75~80 parts of alkene ether carboxylic acid sodium, 10~15 parts of alkaline assistant, 1~5 part of small molecular alcohol, 10~30 parts of water；Wherein, the fatty amine
The molecular formula of polyoxyethylene ether carboxylic acid sodium is：
Wherein, n is any integer in 12~18, and x is any integer in 2~5, and y is any integer in 2~5.
The aliphatic amine polyoxyethylene ether carboxylic acid sodium is a kind of novel surfactant containing double-hydrophilic, is had to viscous crude
Quick emulsification and automatic demulsification function.Preparation method can refer to the aliphatic amine polyoxyethylene ether carboxylic of CN103421174A records
The preparation method of hydrochlorate.The molecular weight of the aliphatic amine polyoxyethylene ether carboxylic acid sodium is 500~900.
In above-mentioned thinner, alkaline assistant is viscosity reduction synergist, and the common alkalescent substance in this field may be selected；In order into
One step promotes surfactant molecule in the absorption of oil-water interfaces, improves the emulsive rate of surfactant, it is preferred that the alkali
Property auxiliary agent be sodium bicarbonate, kodalk, any one or combination in triethanolamine.It is further preferred that the alkaline auxiliary
Agent is kodalk.
In above-mentioned thinner, small molecular alcohol is the monohydric alcohol that carbon atom number is 2~6；Small molecular alcohol can increase thinner point
Son destroys the stronger adsorbed film formed on oil-water interfaces to the penetrating power of viscous crude, realizes quickly dividing to gum asphalt
It dissipates；Preferably, the small molecular alcohol is any one in isobutanol, n-butanol, isopropanol or combination.It is further preferred that
The small molecular alcohol is isobutanol.
The water is that tap water, well water, distilled water or total ion concentration are no more than 10 × 104Mg/L, calcium ions and magnesium ions concentration
Concentrated water no more than 3000mg/L.The thinner of the present invention has stronger salt resistance ability, therefore total ion concentration does not surpass
Cross 10 × 104The water of mg/L, calcium ions and magnesium ions concentration no more than 3000mg/L is all available.
Companion's steam emulsifying and viscosity-reducing agent for condensed oil of the present invention, by aliphatic amine polyoxyethylene ether carboxylic acid sodium and alkaline assistant, small
Molecule alcohol compounds, and water-base viscosity-reducing agent is the alkaline auxiliary using aliphatic amine polyoxyethylene ether carboxylic acid sodium is host agent as shown in formula (1)
Agent is synergist, and small molecular alcohol is bleeding agent, is compounded with water；Wherein, aliphatic amine polyoxyethylene ether carboxylic acid shown in formula (1)
Sodium is a kind of surfactant containing double-hydrophilic, has the function of the quick emulsification to viscous crude and automatic demulsification；Alkaline assistant can
To promote surfactant molecule in the absorption of oil-water interfaces, the emulsive rate of surfactant is improved；Small molecular alcohol can increase
The penetrating power of viscosity reduction agent molecule degree viscous crude destroys the stronger adsorbed film formed on oil-water interfaces, realizes to gum asphalt
Rapid dispersion, each component cooperates, and coordinative role keeps thinner heat-resistant salt-resistant ability strong, can quick emulsification colloidal bitumen
The higher viscous crude of content, and have many advantages, such as that viscosity reducing effect is excellent, can be demulsified automatically.
Companion's steam emulsifying and viscosity-reducing agent for condensed oil of the present invention, is a kind of super-viscous oil viscosity reduction system of efficient heat-resistant salt-resistant, with
The prior art is compared, which has super-viscous oil the superior function of quick emulsification, rapid viscosity reduction, automatic demulsification performance, can
For salinity up to 10 × 104The reducing viscosity by emulsifying of super-viscous oil under the conditions of mg/L, viscosity break ratio is up to 99% or more；Temperature resistant capability reaches
300 DEG C, after 300 DEG C of high-temperature heat treatments, significant change, the loss of general activity object do not occur thinner of the invention for ingredient
Less than 1%, to the viscosity break ratio of super-viscous oil still up to 99% or more after high-temperature heat treatment.It is higher for resin and asphalt content
Super-viscous oil, thinner of the invention improve penetrating power of the viscosity reduction agent molecule to viscous crude by the addition of small molecular alcohol bleeding agent,
Rapid dispersion is carried out to gum asphalt micelle structure, to realize the quick emulsification to super-viscous oil.Companion's steam of the present invention is used
Emulsifying and viscosity-reducing agent for condensed oil can meet the viscosity reduction requirement of different oil field high temperature, high salinity and high gum asphalt super-viscous oil, fit
It closes during high temperature and high salt super-heavy oil deposit steam soak drives with steam and is used with steam injection.
A kind of preparation method of above-mentioned companion's steam emulsifying and viscosity-reducing agent for condensed oil, is included under the conditions of 50~70 DEG C, by fat
Fat amine polyoxyethylene ether carboxylic acid sodium, alkaline assistant, small molecular alcohol are sequentially added in water and are stirred to get water-base viscosity-reducing agent.
A kind of application method of above-mentioned companion's steam emulsifying and viscosity-reducing agent for condensed oil, includes by the emulsifying and viscosity-reducing agent for condensed oil
Viscosity reduction agent solution is obtained after 100~1000 times of dilution, and gained viscosity reduction agent solution is injected into stratum with steam.
Wait for that the volume ratio of viscosity reduction viscous crude is 1~4 in the viscosity reduction agent solution and stratum:6~9.
Dilution water used is that tap water, well water, distilled water or total ion concentration are no more than 10 × 104Mg/L, calcium and magnesium from
Sub- concentration is no more than the concentrated water of 3000mg/L.
The preparation method and application method of companion's steam emulsifying and viscosity-reducing agent for condensed oil of the present invention, it is simple for process, it is easy to operate,
Special instrument and equipment is not needed, extemporaneous preparation is suitble to use.
According to volume ratio it is 1~4 by water-base viscosity-reducing agent and the viscous crude (crude oil) of the present invention:After 6~9 ratio mixing,
1~2min is stirred under 60~120r/min speed conditions, you can form the oil-in-water emulsion of low viscosity；Oil-in-water type breast
Shape liquid is demulsified automatically after 60min, realizes the quick separating of grease.
Specific implementation mode
The present invention is further illustrated With reference to embodiment.
Embodiment 1
Companion's steam emulsifying and viscosity-reducing agent for condensed oil of the present embodiment, includes the component of following parts by weight：Fatty amine polyoxy second
80 parts of alkene ether carboxylic acid sodium, 15 parts of kodalk, 5 parts of isobutanol；Wherein, the molecular formula of the aliphatic amine polyoxyethylene ether carboxylic acid sodium
For：
Wherein, 18 n, x 5, y 5.
Companion's steam of the present embodiment emulsified viscous oil (water base) thinner, includes the component of following parts by weight：Fatty amine
80 parts of polyoxyethylene ether carboxylic acid sodium, 15 parts of kodalk, 5 parts of isobutanol, 30 parts of water, wherein the aliphatic amine polyoxyethylene ether
Shown in the molecular formula of carboxylic acid sodium such as formula (1-1).
Companion's steam of the present embodiment preparation method of emulsified viscous oil (water base) thinner, is pressed under 50 DEG C of stirring conditions
Row step carries out：
1) aliphatic amine polyoxyethylene ether carboxylic acid sodium shown in formula (1-1) is added to the water, is sufficiently stirred and dissolves to obtain mixture
A；
2) kodalk is added in mixture A obtained by step 1), stirring obtains mixture B to dissolving；
3) isobutanol is added in mixture B obtained by step 2), stirring and dissolving is to get water-base viscosity-reducing agent.
In the present embodiment, water used is tap water.
Companion's steam of the present embodiment emulsified viscous oil (water base) thinner by gained water-base viscosity-reducing agent in use, dilute 1000
Viscosity reduction agent solution is obtained after times, and gained viscosity reduction agent solution is injected into stratum with steam；The viscosity reduction agent solution is waited for stratum
The volume ratio of viscosity reduction viscous crude is 1:6.
According to volume ratio it is 1 by above-mentioned gained viscosity reduction agent solution and viscous crude (crude oil):After 6 ratio mixing, in 120r/
1min is stirred under min speed conditions, you can forms the oil-in-water emulsion of low viscosity；The oil-in-water emulsion is in 60min
Automatic demulsification afterwards, realizes the quick separating of grease.
Embodiment 2
Companion's steam emulsifying and viscosity-reducing agent for condensed oil of the present embodiment, includes the component of following parts by weight：Fatty amine polyoxy second
75 parts of alkene ether carboxylic acid sodium, 10 parts of sodium bicarbonate, 1 part of n-butanol；Wherein, the molecular formula of the aliphatic amine polyoxyethylene ether carboxylic acid sodium
For：
Wherein, 12 n, x 2, y 2.
Companion's steam of the present embodiment emulsified viscous oil (water base) thinner, includes the component of following parts by weight：Fatty amine
75 parts of polyoxyethylene ether carboxylic acid sodium, 10 parts of sodium bicarbonate, 1 part of n-butanol, 10 parts of water, wherein the aliphatic amine polyoxyethylene ether
Shown in the molecular formula of carboxylic acid sodium such as formula (1-2).
Companion's steam of the present embodiment preparation method of emulsified viscous oil (water base) thinner, is pressed under 60 DEG C of stirring conditions
Row step carries out：
1) aliphatic amine polyoxyethylene ether carboxylic acid sodium shown in formula (1-2) is added to the water, is sufficiently stirred and dissolves to obtain mixture
A；
2) sodium bicarbonate is added in mixture A obtained by step 1), stirring obtains mixture B to dissolving；
3) n-butanol is added in mixture B obtained by step 2), stirring and dissolving is to get water-base viscosity-reducing agent.
In the present embodiment, water used is distilled water.
Companion's steam of the present embodiment emulsified viscous oil (water base) thinner by gained water-base viscosity-reducing agent in use, dilute 100
Viscosity reduction agent solution is obtained after times, and gained viscosity reduction agent solution is injected into stratum with steam；The viscosity reduction agent solution is waited for stratum
The volume ratio of viscosity reduction viscous crude is 1:9.
According to volume ratio it is 1 by above-mentioned gained viscosity reduction agent solution and viscous crude (crude oil):After 9 ratio mixing, in 60r/min
2min is stirred under speed conditions, you can forms the oil-in-water emulsion of low viscosity；The oil-in-water emulsion after 60min from
Dynamic demulsification, realizes the quick separating of grease.
Embodiment 3
Companion's steam emulsifying and viscosity-reducing agent for condensed oil of the present embodiment, includes the component of following parts by weight：Fatty amine polyoxy second
78 parts of alkene ether carboxylic acid sodium, 12 parts of triethanolamine, 3 parts of isopropanol；Wherein, the molecular formula of the aliphatic amine polyoxyethylene ether carboxylic acid sodium
For：
Wherein, 15 n, x 4, y 4.
Companion's steam of the present embodiment emulsified viscous oil (water base) thinner, includes the component of following parts by weight：Fatty amine
75 parts of polyoxyethylene ether carboxylic acid sodium, 10 parts of triethanolamine, 1 part of isopropanol, 20 parts of water, wherein the aliphatic amine polyoxyethylene ether
Shown in the molecular formula of carboxylic acid sodium such as formula (1-3).
Companion's steam of the present embodiment preparation method of emulsified viscous oil (water base) thinner, is pressed under 70 DEG C of stirring conditions
Row step carries out：
1) aliphatic amine polyoxyethylene ether carboxylic acid sodium shown in formula (1-3) is added to the water, is sufficiently stirred and dissolves to obtain mixture
A；
2) triethanolamine is added in mixture A obtained by step 1), stirring obtains mixture B to dissolving；
3) isopropanol is added in mixture B obtained by step 2), stirring and dissolving is to get water-base viscosity-reducing agent.
In the present embodiment, water used is that total ion concentration is no more than 10 × 104Mg/L, calcium ions and magnesium ions concentration are no more than
The concentrated water of 3000mg/L.
Companion's steam of the present embodiment emulsified viscous oil (water base) thinner by gained water-base viscosity-reducing agent in use, dilute 500
Viscosity reduction agent solution is obtained after times, and gained viscosity reduction agent solution is injected into stratum with steam；The viscosity reduction agent solution is waited for stratum
The volume ratio of viscosity reduction viscous crude is 4:9.
According to volume ratio it is 4 by above-mentioned gained viscosity reduction agent solution and viscous crude (crude oil):After 9 ratio mixing, in 90r/min
1.5min is stirred under speed conditions, you can forms the oil-in-water emulsion of low viscosity；The oil-in-water emulsion is after 60min
Automatic demulsification, realizes the quick separating of grease.
Companion's steam emulsifying and viscosity-reducing agent for condensed oil of embodiment 4-10, uses the component and preparation method thereof of water-base viscosity-reducing agent
The technical parameter of method is as shown in table 1, remaining is the same as embodiment 1.
The thinner component and preparation, application method parameter list of 1 embodiment 4-10 of table
Note：Water described in table 1 is tap water, distilled water or nature raw water (such as well water) or total ion
Concentration is no more than 10 × 104Mg/L, calcium ions and magnesium ions concentration are no more than the concentrated water of 3000mg/L.
By the viscosity reduction agent solution after being diluted in embodiment 4-10 with viscous crude (crude oil) according to viscosity reduction agent solution and viscous crude in table 1
After volume ratio mixing, 1-2min is stirred under 60-120r/min speed conditions, you can form the oil-in-water type emulsus of low viscosity
Liquid；The oil-in-water emulsion is demulsified automatically after 60min, realizes the quick separating of grease.
Experimental example
This experimental example is detected the performance of tackifier obtained by embodiment 1-8.
Detection method be using high temperature thicking oil viscosity reducing agent general technical specifications evaluation method (QSH1020_2193-2013),
Companion's steam in embodiment 1-8 is placed in emulsified viscous oil (water base) thinner in high-temperature tank, heats at 300 DEG C and takes out afterwards for 24 hours,
The oil-in-water emulsion of low viscosity is made according to the explanation in embodiment 1-8, observes its emulsifying effectiveness, and survey its viscosity.It is real
Test that the results are shown in Table 2.
The viscosity reducing effect of thinner obtained by 2 embodiment 1-8 of table
From table 2 it can be seen that tackifier obtained by embodiment 1-8 are in the case of salinity higher (up to 98000mg/L),
Viscosity break ratio is still maintained at 99.1% or more.The experimental results showed that companion's steam of the invention is resistance to emulsifying and viscosity-reducing agent for condensed oil heatproof
Salt ability is strong, can the higher viscous crude of quick emulsification colloidal bitumen content, and with that viscosity reducing effect is excellent, can be demulsified automatically etc. is excellent
Point can meet the viscosity reduction requirement of different oil field high temperature, high salinity and high gum asphalt super-viscous oil, be suitble to high temperature and high salt super
Factor of cyclic steam stimulation in heavy oil reservoir uses in being driven with steam with steam injection.
Claims (8)
1. a kind of with steam emulsifying and viscosity-reducing agent for condensed oil, it is characterised in that：Include the component of following parts by weight：Fatty amine polyoxy
75~80 parts of vinethene carboxylic acid sodium, 10~15 parts of alkaline assistant, 1~5 part of small molecular alcohol；Wherein, the aliphatic amine polyoxyethylene
The molecular formula of ether carboxylic acid sodium is：
Wherein, n is any integer in 12~18, and x is any integer in 2~5, and y is any integer in 2~5；
The alkaline assistant is any one or combination in sodium bicarbonate, kodalk, triethanolamine；
The small molecular alcohol is any one or combination in the monohydric alcohol that carbon atom number is 2~6.
2. according to claim 1 with steam emulsifying and viscosity-reducing agent for condensed oil, it is characterised in that：The alkaline assistant is carbonic acid
Any one in hydrogen sodium, kodalk, triethanolamine or combination.
3. a kind of with steam emulsifying and viscosity-reducing agent for condensed oil, it is characterised in that：Include the component of following parts by weight：Fatty amine polyoxy
75~80 parts of vinethene carboxylic acid sodium, 10~15 parts of alkaline assistant, 1~5 part of small molecular alcohol, 10~30 parts of water；Wherein, the fat
The molecular formula of amine polyoxyethylene ether carboxylic acid sodium is：
Wherein, n is any integer in 12~18, and x is any integer in 2~5, and y is any integer in 2~5；
The alkaline assistant is any one or combination in sodium bicarbonate, kodalk, triethanolamine；
The small molecular alcohol is any one or combination in the monohydric alcohol that carbon atom number is 2~6.
4. according to claim 3 with steam emulsifying and viscosity-reducing agent for condensed oil, it is characterised in that：The small molecular alcohol is isobutyl
Any one in alcohol, n-butanol, isopropanol or combination.
5. according to claim 3 with steam emulsifying and viscosity-reducing agent for condensed oil, it is characterised in that：The water is tap water, well
Water, distilled water or total ion concentration are no more than 10 × 104Mg/L, calcium ions and magnesium ions concentration are no more than the high salinity of 3000mg/L
Water.
6. a kind of preparation method as claimed in claim 3 with steam emulsifying and viscosity-reducing agent for condensed oil, it is characterised in that：It is included in
Under the conditions of 50~70 DEG C, aliphatic amine polyoxyethylene ether carboxylic acid sodium, alkaline assistant, small molecular alcohol are sequentially added in water and stirred, i.e.,
Obtain water-base viscosity-reducing agent.
7. a kind of application method as claimed in claim 3 with steam emulsifying and viscosity-reducing agent for condensed oil, it is characterised in that：Including inciting somebody to action
The emulsifying and viscosity-reducing agent for condensed oil obtains viscosity reduction agent solution after diluting 100~1000 times, and gained viscosity reduction agent solution is injected with steam
Stratum.
8. the application method according to claim 7 with steam emulsifying and viscosity-reducing agent for condensed oil, it is characterised in that：The viscosity reduction
Wait for that the volume ratio of viscosity reduction viscous crude is 1~4 in agent solution and stratum:6~9.
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| CN106988714B (en) * | 2017-04-10 | 2019-10-18 | 中国石油化工股份有限公司 | A kind of super-viscous oil drop sticking method |
| CN108343412B (en) * | 2018-02-11 | 2021-04-30 | 新疆新易通石油科技有限公司 | Treating agent for improving steam flooding or steam huff and puff heating efficiency of super heavy oil and preparation method and application thereof |
| CN114437303A (en) * | 2021-12-31 | 2022-05-06 | 宁波锋成先进能源材料研究院有限公司 | Nano material, preparation method thereof and application of nano material in high-temperature-resistant nano viscosity reducer for thick oil accompanied with steam |
| CN115197686B (en) * | 2022-07-19 | 2023-09-29 | 华东理工大学 | Application of surfactant in thick oil emulsification and viscosity reduction |
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