CN106398675A - Emulsification viscosity reduction agent, preparation method and applications thereof, and thick oil emulsification viscosity reduction method - Google Patents
Emulsification viscosity reduction agent, preparation method and applications thereof, and thick oil emulsification viscosity reduction method Download PDFInfo
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- CN106398675A CN106398675A CN201510459108.1A CN201510459108A CN106398675A CN 106398675 A CN106398675 A CN 106398675A CN 201510459108 A CN201510459108 A CN 201510459108A CN 106398675 A CN106398675 A CN 106398675A
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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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- 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
- C09K8/588—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 polymers
Abstract
The present invention relates to the field of emulsification viscosity reduction, and discloses an emulsification viscosity reduction agent, which comprises a cationic surfactant, a nonionic surfactant, an alcohol and a macromolecule polymer. The invention further discloses an emulsification viscosity reduction agent preparation method, applications of the emulsification viscosity reduction agent in thick oil emulsification viscosity reduction, and a method for carrying out thick oil emulsification viscosity reduction by using the emulsification viscosity reduction agent. According to the present invention, the emulsification viscosity reduction agent can effectively reduce the viscosity of the thick oil, is especially suitable for the high wax content thick oil, can further be used for the low wax content ordinary thick oil and the super thick oil, and provides the excellent adaptability for the high calcium ion content and high magnesium ion content formation water thick oil.
Description
Technical field
The present invention relates to reducing viscosity by emulsifying field, in particular it relates to a kind of emulsifying pour depressor and this reducing viscosity by emulsifying
The preparation method and application of agent, and the method that thick-oil emulsified adhesive-reducing is carried out using this emulsifying pour depressor.
Background technology
Viscous crude refers to the crude oil more than 50mPa.s for the viscosity under the conditions of 50 DEG C.Because viscosity of thickened oil is big, lead to
Poor fluidity, brings many detrimental effects to the exploitation of viscous crude, lifting and the defeated process of collection.Reducing viscosity by emulsifying
It is that viscous crude is formed with aqueous surfactant solution by " oil-in-water " type emulsion using applying surface activating agent,
Thus reducing viscosity of crude, improve a kind of viscosity reducing process of viscous crude mobility.
Heavy oil development occupies certain proportion in the oil and gas development of China, Liaohe Oil Field, Shengli Oil Field,
All there is viscous crude distribution in Xinjiang Oilfield, Zhongyuan Oil Field and Jiangsu oilfield.Thickened oil recovery accounts for overall oil and opens
Adopting proportion is also increasing.The mobility improving viscous crude is thickened oil recovery, lifting and the key collecting defeated process
Technology.Reducing viscosity by emulsifying is capable of viscous crude " cold adopt " under cryogenic, and wellbore lift and low temperature are defeated
Send.Reducing viscosity by emulsifying, for improving development result of heavy oil reservoirs, is increased economic efficiency with important function.
CN103320110A discloses a kind of viscous crude and high temperature resistant the helping of super heavy oil recovery nano composite is adopted
Agent and preparation method thereof.Its by modified Nano inorganic assistant, petroleum sulfonate, thinner, emulsifying agent,
Surface active agent, bleeding agent, macromolecule modifier, catalyst preparation form.Its main component is nanometer
SiO2, anion surfactant, nonionic surfactant and high molecular polymer.Thinner is permissible
Carry out reducing thick oil viscosity under the high temperature conditions.
CN102618245A discloses a kind of emulsifying pour depressor and purposes.Thinner is mainly by dodecyl
Sodium sulfonate, sulfonate type anion surfactant, alkyl benzene sulphonate salt form anion surfactant and
Carboxylic acid type anion surfactant forms.This thinner can realize salinity 20000mg/L condition
Under to common heavy oil and super-viscous oil reducing viscosity by emulsifying.
CN102604618A discloses a kind of Cold heavy oil production stratum crude oil thinner, is applied to oil-field thick-oil
The cold in-place oil adopted is processed, and improves in-place oil mobility.Thinner by N, the double sodium taurocholate of N- oleoyl,
Lauroyl N-methyltaurine sodium, Teepol, polyoxyethylene nonylphenol ether E-12, enuatrol and hydroxide
Sodium forms.
Content of wax viscous crude is a kind of viscous crude of specific type, because the content of wax in viscous crude is high, leads to this kind of thick
Not only viscosity is high for oil, and condensation point is high.Due to wherein containing substantial amounts of wax component, this kind of viscous crude is difficult to breast
Change viscosity reduction, and be easier to form " Water-In-Oil " type emulsion.Existing emulsifying and viscosity-reducing agent for condensed oil is main
It is with anionic surfactant, nonionic surface active agent and cosurfactant and pH value
Conditioning agent, polymer etc. form.This kind of emulsifying pour depressor is equal for adaptable common heavy oil and super-viscous oil
The viscosity reducing effect having had, but for high-content wax thick-oil emulsified adhesive-reducing bad adaptability and be not suitable for containing height
Calcium, the thick-oil emulsified adhesive-reducing of magnesium ion stratum water.
Content of the invention
The invention aims to overcoming the drawbacks described above of prior art, provide a kind of new reducing viscosity by emulsifying
Agent, this emulsifying pour depressor is applicable not only to high-content wax thick-oil emulsified adhesive-reducing, also apply be applicable to low general of the content of wax
Circulation thick oil and super-viscous oil carry out reducing viscosity by emulsifying, and for the viscous crude tool containing high calcium, the stratum water of magnesium ion
There is fabulous adaptability.
The present inventor finds under study for action, and emulsifying pour depressor contains cationic surfactant, non-
Ionic surface active agent, alcohol and high molecular polymer, can make emulsifying pour depressor be applied to high-content wax viscous crude breast
Change viscosity reduction, also apply be applicable to the low common heavy oil of the content of wax and super-viscous oil carries out reducing viscosity by emulsifying, and for containing
High calcium, the viscous crude of the stratum water of magnesium ion have fabulous adaptability.
Therefore, to achieve these goals, on the one hand, the invention provides a kind of emulsifying pour depressor, institute
State emulsifying pour depressor and contain cationic surfactant, nonionic surfactant, alcohol and high molecular polymerization
Thing.
Preferably, described emulsifying pour depressor also contains water.
Preferably, on the basis of the weight of described emulsifying pour depressor, the containing of described cationic surfactant
Measure as 0.05-5 weight %, the content of described nonionic surfactant is 0.01-1 weight %, described alcohol
Content be 0.01-0.2 weight %, the content of described high molecular polymer is 0.01-1 weight %, surplus
For water；It is highly preferred that on the basis of the weight of described emulsifying pour depressor, described cationic surfactant
Content be 0.1-0.8 weight %, the content of described nonionic surfactant is 0.05-0.2 weight %,
The content of described alcohol is 0.05-0.1 weight %, and the content of described high molecular polymer is 0.05-0.2 weight
%, balance of water.
Preferably, described cationic surfactant is alkyltrimethyl ammonium chloride and/or alkyl trimethyl
Amine bromide, the carbon number of described alkyl is 3-20, more preferably 12-18；Described cationic surface is lived
Property agent still more preferably be trimethyl ammonium chloride, tetradecyltrimethylammonium ammonium chloride, 16
At least one in alkyltrimethyl ammonium chloride and octadecyl trimethyl ammonium chloride.
Preferably, described nonionic surfactant is APES, alkyl phenol polyoxypropylene
At least one in ether, AEO and fatty alcohol polyoxypropylene ether.Alkylphenol-polyethenoxy
Ether, the carbon number of the alkyl of alkyl phenol polyethenoxy ether are preferably 5-15, more preferably 7-10, alkyl
The polyoxyethylene of phenol polyethenoxy ether, the degree of polymerization of the polyoxypropylene of alkyl phenol polyethenoxy ether are preferably
5-20, more preferably 7-15；AEO, the alkyl of fatty alcohol polyoxypropylene ether carbon former
Subnumber is preferably 5-20, more preferably 8-14, the polyoxyethylene of AEO, poly alkyl alcohol
The degree of polymerization of the polyoxypropylene of oxypropylene ether is preferably 3-20, more preferably 7-15.
Preferably, described alcohol is monohydric alcohol, and the carbon number of described alcohol is 1-12, more preferably 2-6,
Described alcohol is still more preferably ethanol and/or butanol.
Preferably, described high molecular polymer be polyacrylamide, xanthans, carboxymethylcellulose calcium, hard
At least one in glucan and polyvinyl alcohol.The viscosity average molecular weigh of described polyacrylamide is preferably
500×104-3000×104.
Preferably, the salinity of described water is 0-25 × 104Mg/L, calcium ions and magnesium ions content is
0-2×104mg/L.
Second aspect, the invention provides the preparation method of emulsifying pour depressor as above, methods described
Including：Will be completely molten to cationic surfactant, nonionic surfactant, alcohol and high molecular polymer
In Xie Shui.
Preferably, the mode of described dissolving includes：Under agitation, high molecular polymer is added portion
Divide in water, stir and dissolve to abundant, then add cationic surfactant, non-ionic surface active
Agent and alcohol, and add excess water, stir to being completely dissolved.
The third aspect, the invention provides emulsifying pour depressor as above answering in thick-oil emulsified adhesive-reducing
With.
Preferably, in described viscous crude, wax content is 5-25 weight %.
Fourth aspect, the invention provides a kind of method of thick-oil emulsified adhesive-reducing, methods described includes：Will
Emulsifying pour depressor is contacted with viscous crude, and described emulsifying pour depressor is emulsifying pour depressor as above.
Preferably, the condition of described contact includes：At 25-200 DEG C, permanent more preferably at 40-60 DEG C
Warm 2-240min, more preferably 90-150min, then stir 10-20min.
Preferably, the consumption of described emulsifying pour depressor is more than 30 weight % of described viscous crude, more preferably
For 30-70 weight %.
Preferably, in described viscous crude, wax content is 5-25 weight %.
The emulsifying pour depressor of the present invention, can effectively reduce the viscosity of viscous crude, be particularly suited for high-content wax thick
Oil, also apply be applicable to the low common heavy oil of the content of wax and super-viscous oil, and for the ground containing high calcium, magnesium ion
The viscous crude of layer water has fabulous adaptability.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Specific embodiment
Hereinafter the specific embodiment of the present invention is described in detail.It should be appreciated that this place is retouched
The specific embodiment stated is merely to illustrate and explains the present invention, is not limited to the present invention.
On the one hand, the invention provides a kind of emulsifying pour depressor, this emulsifying pour depressor contains cationic surface
Activating agent, nonionic surfactant, alcohol and high molecular polymer.
It will be understood by those skilled in the art that emulsifying pour depressor is when actually used, should be by each component
It is substantially dissolved in water and uses, it is therefore preferred that the emulsifying pour depressor of the present invention also contains water.
It is preferable that on the basis of the weight of emulsifying pour depressor in the present invention, cationic surfactant
Content is 0.05-5 weight %, and the content of nonionic surfactant is 0.01-1 weight %, the content of alcohol
For 0.01-0.2 weight %, the content of high molecular polymer is 0.01-1 weight %, balance of water；More excellent
Selection of land, on the basis of the weight of emulsifying pour depressor, the content of cationic surfactant is 0.1-0.8 weight
Amount %, the content of nonionic surfactant is 0.05-0.2 weight %, and the content of alcohol is 0.05-0.1 weight
Amount %, the content of high molecular polymer is 0.05-0.2 weight %, balance of water.In above-mentioned preferable case
Under, can more effectively reduce the viscosity of viscous crude.
In the present invention, cationic surfactant is preferably alkyltrimethyl ammonium chloride and/or alkyl front three
Base amine bromide, the carbon number of alkyl is preferably 3-20, more preferably 12-18；Cation surface activating
Agent is more preferably trimethyl ammonium chloride, tetradecyltrimethylammonium ammonium chloride, cetyl front three
At least one in base ammonium chloride and octadecyl trimethyl ammonium chloride.Under this preferable case, Neng Gougeng
It is effectively reduced the viscosity of viscous crude.
In the present invention, nonionic surfactant is preferably APES, alkyl phenol polyoxy third
At least one in alkene ether, AEO and fatty alcohol polyoxypropylene ether.Wherein, alkyl phenol
APEO, the carbon number of the alkyl of alkyl phenol polyethenoxy ether are preferably 5-15, more preferably
7-10, the polyoxyethylene of APES, the polymerization of the polyoxypropylene of alkyl phenol polyethenoxy ether
Degree is preferably 5-20, more preferably 7-15, for example, it is possible to produced from Jiangsu Hai'an petrochemical plant
NP-7, NP-10, NP-15, OP-7, OP-10, OP-15 etc..AEO, fat
The carbon number of the alkyl of alcohol polyethenoxy ether is preferably 5-20, more preferably 8-14, fatty alcohol polyoxy second
The polyoxyethylene of alkene ether, the degree of polymerization of the polyoxypropylene of fatty alcohol polyoxypropylene ether are preferably 3-20, more excellent
Elect 7-15 as, for example, it is possible to the AEO-7 being produced from Jiangsu Hai'an petrochemical plant, AEO-9,
AEO-13, JFC-4, JFC-6 etc..
In the present invention, alcohol is preferably monohydric alcohol, and the carbon number of alcohol is preferably 1-12, more preferably 2-6,
Alcohol is still more preferably ethanol and/or butanol.
In the present invention, high molecular polymer be preferably polyacrylamide, xanthans, carboxymethylcellulose calcium,
At least one in scleroglucan and polyvinyl alcohol, the viscosity average molecular weigh of polyacrylamide is preferably
500×104-3000×104.For carboxymethylcellulose calcium, scleroglucan and polyvinyl alcohol, can be using this
Carboxymethylcellulose calcium, scleroglucan and polyvinyl alcohol that field is commonly used.
The emulsifying pour depressor of the present invention has fabulous fitting for the viscous crude containing high calcium, the stratum water of magnesium ion
Ying Xing, that is, will not due to the calcium of the high-load in the water of stratum, magnesium ion and lost efficacy, therefore, for this
The requirement of the water in bright emulsifying pour depressor is more wide in range, and for example, the salinity of water can be
0-25×104Mg/L, calcium ions and magnesium ions content can be 0-2 × 104mg/L.In the present invention, calcium ions and magnesium ions contain
Amount refers to total content of calcium ion and magnesium ion.The water of the present invention can be distilled water, oil field injection
Water, oil field output water etc..
Second aspect, the invention provides the preparation method of emulsifying pour depressor as above, the method bag
Include：Cationic surfactant, nonionic surfactant, alcohol and high molecular polymer are completely dissolved
In water.
In the present invention, for the concrete mode no particular/special requirement of dissolving, those skilled in the art can be adopted
The thinkable various modes of institute, if by cationic surfactant, nonionic surfactant, alcohol and
High molecular polymer is dissolved completely in the emulsifying pour depressor that can get the present invention in water by respective amount.By
Compare indissoluble in high molecular polymer, thus, for example, can be dissolved in the following way to prepare
The emulsifying pour depressor of the present invention：Under agitation, high molecular polymer is added in part water, stirring
Dissolve to abundant, then add cationic surfactant, nonionic surfactant and alcohol, and plus
Enter excess water, stir to being completely dissolved.
It will be understood by those skilled in the art that " fully dissolve " do not exist after referring to dissolving visible
Insoluble matter, " being completely dissolved " refers to all dissolve.
In the present invention, stirring generally refers to stirring under 200-400rpm.
It will be understood by those skilled in the art that in order that high molecular polymer preferably dissolves, adding
Enter and be preferably slowly added to during high molecular polymer.Part water is generally the 1/3-2/3 of water inventory.Stir to filling
Divide dissolving, typically at normal temperatures, such as at 15-30 DEG C, stir 3.5-4.5 hour, you can fully dissolve.
Stir to being completely dissolved, typically at normal temperatures, such as at 15-30 DEG C, stir 20-30min, you can complete
CL.
The third aspect, the invention provides emulsifying pour depressor as above answering in thick-oil emulsified adhesive-reducing
With.
The emulsifying pour depressor of the present invention can not only be low to the content of wax common heavy oil and super-viscous oil emulsify
Viscosity reduction, and apply also for high-content wax thick-oil emulsified adhesive-reducing, in high-content wax viscous crude, wax content is generally 5-25
Weight %.And, the emulsifying pour depressor of the present invention has for the viscous crude containing high calcium, the stratum water of magnesium ion
There is fabulous adaptability.
Fourth aspect, the invention provides a kind of method of thick-oil emulsified adhesive-reducing, the method includes：By breast
Change thinner to contact with viscous crude, emulsifying pour depressor is emulsifying pour depressor as above.
It is contemplated that carry out the reducing viscosity by emulsifying of viscous crude by specific emulsifying pour depressor, therefore, for breast
Change the concrete grammar no particular/special requirement of viscosity reduction, can be using various methods commonly used in the art, for example, breast
The condition that change thinner is contacted with viscous crude can include：At 25-200 DEG C, permanent preferably at 40-60 DEG C
Warm 2-240min, preferably 90-150min, then stir 10-20min.
Carry out breast because the emulsifying pour depressor of the present invention can be contacted with viscous crude at a temperature of up to 200 DEG C
Change viscosity reduction, therefore, the emulsifying pour depressor of the present invention can be applied to the reducing viscosity by emulsifying of high-heat heavy crude.
In the present invention, the consumption of emulsifying pour depressor is preferably more than 30 weight % of viscous crude, more preferably
30-70 weight %.
As it was previously stated, the emulsifying pour depressor of the present invention is applied to high-content wax thick-oil emulsified adhesive-reducing, high-content wax is thick
In oil, wax content is generally 5-25 weight %.
Embodiment
The present invention is further illustrated for below example, but and is not so limited the present invention.
In the following Examples and Comparative Examples：
The mensure of viscosity：Adopt Brookfield DV-II viscosimeter at 50 DEG C, in shear rate be
7.34S-1Under conditions of be measured.
Embodiment 1
The present embodiment is used for the emulsifying pour depressor of the present invention and the method for thick-oil emulsified adhesive-reducing are described.
(1) take 50g water (salinity：160000mg/L, wherein Ca2+Concentration：10000mg/L,
Mg2+Concentration：10000mg/L), it is slowly added to 0.05g polyacrylamide under 400rpm stirring (viscous
Average molecular weight is 1000 × 104, degree of hydrolysis be 20%), at 25 DEG C stir 4h, add 0.1g sun from
Sub- surfactant octadecyl trimethyl ammonium chloride, adds 0.05g NPE (polyoxy
The degree of polymerization of ethene is 10), add 0.05g ethanol, add water to 100g, stir to being completely dissolved,
Obtain emulsifying pour depressor A1.
(2) in 200mL beaker, take 30g emulsifying pour depressor A1 to be added to 70g Jiangsu oilfield and contain
(50 DEG C of viscosity 9630mPa.s, wax content 25 weight %, in crude oil, wax content is according to SY/T for wax viscous crude
0537-2008 measures), beaker is positioned over constant temperature 2h in 50 DEG C of water-baths, stirs 10 minutes, viscous crude is equal
Even emulsification, then measuring viscosity at 50 DEG C is 65mPa.s.
Embodiment 2
The present embodiment is used for the emulsifying pour depressor of the present invention and the method for thick-oil emulsified adhesive-reducing are described.
(1) take 50g distilled water (salinity：0mg/L, wherein Ca2+Concentration：0mg/L, Mg2+Dense
Degree：0mg/L), it is slowly added to 0.2g polyacrylamide (viscosity average molecular weigh under 300rpm stirring
500×104, degree of hydrolysis is 25%), stir 4.5h at 15 DEG C, add 0.8g cation surface activating
Agent trimethyl ammonium chloride, adds the 0.2g octyl phenol polyethenoxy ether (degree of polymerization of polyoxypropylene
For 15), add 0.1g butanol, add water to 100g, stir to being completely dissolved, obtain emulsifying pour depressor
A2.
(2) in 200mL beaker, take 30g emulsifying pour depressor A2 to be added to 70g Zhongyuan Oil Field and contain
(50 DEG C of viscosity 98000mPa.s, wax contents 13%, in crude oil, wax content is according to SY/T for wax viscous crude
0537-2008 measures), beaker is positioned over constant temperature 2.5h in 40 DEG C of water-baths, stirs 15 minutes, viscous crude
Uniformly emulsify, then measuring viscosity at 50 DEG C is 35mPa.s.
Embodiment 3
The present embodiment is used for the emulsifying pour depressor of the present invention and the method for thick-oil emulsified adhesive-reducing are described.
(1) take 50g water (salinity：250000mg/L, wherein Ca2+Concentration：18000mg/L,
Mg2+Concentration：2000mg/L), it is slowly added to 0.1g polyacrylamide under 200rpm stirring (viscous equal
Molecular weight is 3000 × 104, degree of hydrolysis 20%), stir 3.5h at 30 DEG C, add 0.4g cation form
Face lammonium ammonium chloride, adds 0.1g Dodecyl Polyoxyethylene Ether (polyoxyethylated
The degree of polymerization is 13), add 0.08g butanol, add water to 100g, stir to being completely dissolved, obtain breast
Change thinner A3.
(2) in 200mL beaker, take 70g emulsifying pour depressor A3 to be added to 100g Zhongyuan Oil Field and contain
(50 DEG C of viscosity 36000mPa.s, wax content 5 weight %, in crude oil, wax content is according to SY/T for wax viscous crude
0537-2008 measures), beaker is positioned over constant temperature 1.5h in 60 DEG C of water-baths, stirs 20 minutes, viscous crude
Uniformly emulsify, then measuring viscosity at 50 DEG C is 52mPa.s.
Embodiment 4
The present embodiment is used for the emulsifying pour depressor of the present invention and the method for thick-oil emulsified adhesive-reducing are described.
Prepare emulsifying pour depressor according to embodiment 1, except for the difference that, cationic surfactant octadecyl
The consumption of trimethyl ammonia chloride amine is 0.05g, obtains emulsifying pour depressor A4.Pressed using emulsifying pour depressor A4
Method according to embodiment 1 carries out reducing viscosity by emulsifying to the viscous crude in embodiment 1, then measures viscous at 50 DEG C
Spend for 160mPa.s.
Embodiment 5
The present embodiment is used for the emulsifying pour depressor of the present invention and the method for thick-oil emulsified adhesive-reducing are described.
Prepare emulsifying pour depressor according to embodiment 1, except for the difference that, the consumption of NPE is
0.01g, obtains emulsifying pour depressor A5.Using emulsifying pour depressor A5 according to embodiment 1 method to reality
The viscous crude applied in example 1 carries out reducing viscosity by emulsifying, and then measuring viscosity at 50 DEG C is 129mPa.s.
Embodiment 6
The present embodiment is used for the emulsifying pour depressor of the present invention and the method for thick-oil emulsified adhesive-reducing are described.
Prepare emulsifying pour depressor according to embodiment 1, except for the difference that, the consumption of ethanol is 0.01g, obtains
Emulsifying pour depressor A6.Using emulsifying pour depressor A6 according to embodiment 1 method to thick in embodiment 1
Oil carries out reducing viscosity by emulsifying, and then measuring viscosity at 50 DEG C is 167mPa.s.
Embodiment 7
The present embodiment is used for the emulsifying pour depressor of the present invention and the method for thick-oil emulsified adhesive-reducing are described.
Prepare emulsifying pour depressor according to embodiment 1, except for the difference that, the consumption of polyacrylamide is 0.01g,
Obtain emulsifying pour depressor A7.Using emulsifying pour depressor A7 according to embodiment 1 method to embodiment 1
In viscous crude carry out reducing viscosity by emulsifying, then at 50 DEG C measure viscosity be 220mPa.s.
Embodiment 8
The present embodiment is used for the emulsifying pour depressor of the present invention and the method for thick-oil emulsified adhesive-reducing are described.
Prepare emulsifying pour depressor according to embodiment 1, except for the difference that, octadecyl trimethyl ammonium chloride is replaced
It is changed to ten alkyltrimethyl ammonium chlorides, obtain emulsifying pour depressor A8.Using emulsifying pour depressor A8 according to reality
The method applying example 1 carries out reducing viscosity by emulsifying to the viscous crude in embodiment 1, then measures viscosity at 50 DEG C and is
460mPa.s.
Embodiment 9
The present embodiment is used for the emulsifying pour depressor of the present invention and the method for thick-oil emulsified adhesive-reducing are described.
Prepare emulsifying pour depressor according to embodiment 1, except for the difference that, by NPE (polyoxy
The degree of polymerization of ethene is 10) replace with hexyl phenol polyethenoxy ether (the polyoxyethylated degree of polymerization is 5),
Obtain emulsifying pour depressor A9.Using emulsifying pour depressor A9 according to embodiment 1 method to embodiment 1
In viscous crude carry out reducing viscosity by emulsifying, then at 50 DEG C measure viscosity 230mPa.s.
Embodiment 10
The present embodiment is used for the emulsifying pour depressor of the present invention and the method for thick-oil emulsified adhesive-reducing are described.
Prepare emulsifying pour depressor according to embodiment 3, except for the difference that, by Dodecyl Polyoxyethylene Ether (polyoxy
The degree of polymerization of ethene is 13) replace with enanthol APEO (the polyoxyethylated degree of polymerization is 5), obtain
To emulsifying pour depressor A10.Using emulsifying pour depressor A10 according to embodiment 3 method to embodiment 3
In viscous crude carry out reducing viscosity by emulsifying, then at 50 DEG C measure viscosity be 280mPa.s.
Embodiment 11
The present embodiment is used for the emulsifying pour depressor of the present invention and the method for thick-oil emulsified adhesive-reducing are described.
Prepare emulsifying pour depressor according to embodiment 1, except for the difference that, by polyacrylamide (viscosity average molecular weigh
For 1000 × 104, degree of hydrolysis is 20%) and (viscosity average molecular weigh is 300 × 10 to replace with polyacrylamide4,
Degree of hydrolysis is 20%), obtain emulsifying pour depressor A12.Using emulsifying pour depressor A12 according to embodiment 1
Method reducing viscosity by emulsifying is carried out to the viscous crude in embodiment 1, then at 50 DEG C measure viscosity be
160mPa.s.
Embodiment 1 is compared with embodiment 4-7 respectively and can be seen that with the weight of emulsifying pour depressor
On the basis of, the content of cationic surfactant is 0.1-0.8 weight %, the containing of nonionic surfactant
Measure as 0.05-0.2 weight %, the content of alcohol is 0.05-0.1 weight %, and the content of high molecular polymer is
0.05-0.2 weight %, balance of water, can reduce the viscosity of viscous crude further.
Embodiment 1 and embodiment 8 are compared as can be seen that cationic surfactant is dodecane
Base trimethyl ammonia chloride amine, tetradecyltrimethylammonium ammonium chloride, cetyl trimethyl ammonium chloride and octadecane
At least one in base trimethyl ammonia chloride amine, can reduce the viscosity of viscous crude further.
Embodiment 1 is compared with embodiment 9, embodiment 3 is compared with embodiment 10,
As can be seen that nonionic surfactant is APES, alkyl phenol polyethenoxy ether, fat
At least one in fat alcohol APEO and fatty alcohol polyoxypropylene ether, wherein, alkylphenol-polyethenoxy
Ether, the carbon number of the alkyl of alkyl phenol polyethenoxy ether are 7-10, the polyoxy of APES
Ethene, the degree of polymerization of the polyoxypropylene of alkyl phenol polyethenoxy ether are 7-15, AEO,
The carbon number of the alkyl of fatty alcohol polyoxypropylene ether is 8-14, the polyoxy second of AEO
Alkene, the degree of polymerization of the polyoxypropylene of fatty alcohol polyoxypropylene ether are 7-15, can reduce viscous crude further
Viscosity.
Embodiment 1 and embodiment 11 are compared as can be seen that high molecular polymer is polyacrylamide
At least one in amine, xanthans, carboxymethylcellulose calcium, scleroglucan and polyvinyl alcohol, polyacrylamide
The viscosity average molecular weigh of amine is excellent to be 500 × 104-3000×104, the viscosity of viscous crude can be reduced further.
The emulsifying pour depressor of the present invention, can effectively reduce the viscosity of viscous crude, be particularly suited for high-content wax thick
Oil, also apply be applicable to the low common heavy oil of the content of wax and super-viscous oil, and for the ground containing high calcium, magnesium ion
The viscous crude of layer water has fabulous adaptability.
The preferred embodiment of the present invention described in detail above, but, the present invention is not limited to above-mentioned reality
Apply the detail in mode, in the range of the technology design of the present invention, can be to the technical side of the present invention
Case carries out multiple simple variant, and these simple variant belong to protection scope of the present invention.
It is further to note that each particular technique described in above-mentioned specific embodiment is special
Levy, in the case of reconcilable, can be combined by any suitable means, in order to avoid need not
The repetition wanted, the present invention no longer separately illustrates to various possible combinations.
Additionally, can also be combined between the various different embodiment of the present invention, as long as its
Without prejudice to the thought of the present invention, it equally should be considered as content disclosed in this invention.
Claims (21)
1. a kind of emulsifying pour depressor is it is characterised in that described emulsifying pour depressor contains cationic surface work
Property agent, nonionic surfactant, alcohol and high molecular polymer.
2. emulsifying pour depressor according to claim 1, wherein, described emulsifying pour depressor also contains
Water.
3. emulsifying pour depressor according to claim 2, wherein, with the weight of described emulsifying pour depressor
On the basis of amount, the content of described cationic surfactant is 0.05-5 weight %, described non-ionic surface
The content of activating agent is 0.01-1 weight %, and the content of described alcohol is 0.01-0.2 weight %, described high score
The content of sub- polymer is 0.01-1 weight %, balance of water.
4. emulsifying pour depressor according to claim 3, wherein, with the weight of described emulsifying pour depressor
On the basis of amount, the content of described cationic surfactant is 0.1-0.8 weight %, described non-ionic surface
The content of activating agent is 0.05-0.2 weight %, and the content of described alcohol is 0.05-0.1 weight %, described height
The content of Molecularly Imprinted Polymer is 0.05-0.2 weight %, balance of water.
5. the emulsifying pour depressor according to any one in claim 1-4, wherein, described sun from
Sub- surfactant is alkyltrimethyl ammonium chloride and/or alkyl trimethyl amine bromide, and the carbon of described alkyl is former
Subnumber is 3-20, preferably 12-18.
6. emulsifying pour depressor according to claim 5, wherein, described cationic surfactant
For trimethyl ammonium chloride, tetradecyltrimethylammonium ammonium chloride, cetyl trimethyl ammonium chloride
With at least one in octadecyl trimethyl ammonium chloride.
7. the emulsifying pour depressor according to any one in claim 1-4, wherein, described non-from
Sub- surfactant is APES, alkyl phenol polyethenoxy ether, AEO
With at least one in fatty alcohol polyoxypropylene ether.
8. emulsifying pour depressor according to claim 7, wherein, APES, alkane
The carbon number of the alkyl of base phenol polyethenoxy ether is 5-15, preferably 7-10, APES
Polyoxyethylene, the polyoxypropylene of alkyl phenol polyethenoxy ether the degree of polymerization be 5-20, preferably 7-15.
9. emulsifying pour depressor according to claim 7, wherein, AEO, fat
The carbon number of the alkyl of fat alcohol polyethenoxy ether is 5-20, preferably 8-14, AEO
Polyoxyethylene, the polyoxypropylene of fatty alcohol polyoxypropylene ether the degree of polymerization be 3-20, preferably 7-15.
10. the emulsifying pour depressor according to any one in claim 1-4, wherein, described alcohol is
Monohydric alcohol, the carbon number of described alcohol is 1-12, preferably 2-6, described alcohol be more preferably ethanol and/
Or butanol.
11. emulsifying pour depressors according to any one in claim 1-4, wherein, described high score
Sub- polymer is in polyacrylamide, xanthans, carboxymethylcellulose calcium, scleroglucan and polyvinyl alcohol
At least one.
12. emulsifying pour depressors according to claim 11, wherein, described polyacrylamide viscous
Average molecular weight is 500 × 104-3000×104.
13. emulsifying pour depressors according to any one in claim 2-4, wherein, described water
Salinity is 0-25 × 104Mg/L, calcium ions and magnesium ions content is 0-2 × 104mg/L.
The preparation method of the emulsifying pour depressor described in any one in 14. claims 1-13, its feature
It is, methods described includes：By cationic surfactant, nonionic surfactant, alcohol and high score
Sub- polymer is dissolved completely in water.
15. methods according to claim 14, wherein, the mode of described dissolving includes：Stirring
Under the conditions of mixing, high molecular polymer is added in part water, stir and dissolve to abundant, then add sun
Ionic surface active agent, nonionic surfactant and alcohol, and add excess water, stir to being completely dissolved.
In 16. claims 1-13, the emulsifying pour depressor described in any one is in thick-oil emulsified adhesive-reducing
Application.
17. applications according to claim 16, wherein, in described viscous crude, wax content is 5-25 weight
Amount %.
A kind of 18. methods of thick-oil emulsified adhesive-reducing, methods described includes：Emulsifying pour depressor is connect with viscous crude
Touch it is characterised in that described emulsifying pour depressor is the emulsification in claim 1-13 described in any one
Thinner.
19. methods according to claim 18, wherein, the condition of described contact includes：In 25-200
At DEG C, constant temperature 2-240min, preferably 90-150min preferably at 40-60 DEG C, then stir 10-20min.
20. methods according to claim 18, wherein, the consumption of described emulsifying pour depressor is institute
State more than 30 weight % of viscous crude, preferably 30-70 weight %.
21. methods according to claim 18, wherein, in described viscous crude, wax content is 5-25 weight
Amount %.
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