CN109294548A - A kind of ageing oil low-temperature demulsification thinner and its preparation method and application - Google Patents
A kind of ageing oil low-temperature demulsification thinner and its preparation method and application Download PDFInfo
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- CN109294548A CN109294548A CN201811441717.4A CN201811441717A CN109294548A CN 109294548 A CN109294548 A CN 109294548A CN 201811441717 A CN201811441717 A CN 201811441717A CN 109294548 A CN109294548 A CN 109294548A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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Abstract
The invention discloses a kind of ageing oil low-temperature demulsification thinners and its preparation method and application, effective component includes dodecyl benzene sulfonic acid triethanolamine, fatty alcohol polyoxyethylene ether, castor oil polyoxyethylene ether, butyl glycol ether, cetyl trimethylammonium bromide, diethylene triamine pentacetic acid (DTPA) ferrisodium, oil-soluble comb-shaped polymer and methanol, the wherein weight percentage of each effective component are as follows: dodecyl benzene sulfonic acid triethanolamine 5% ~ 15%, fatty alcohol polyoxyethylene ether 5% ~ 10%, castor oil polyoxyethylene ether 15% ~ 30%, butyl glycol ether 2% ~ 8%, cetyl trimethylammonium bromide 5% ~ 15%, diethylene triamine pentacetic acid (DTPA) ferrisodium 5% ~ 15%, oil-soluble comb-shaped polymer 2% ~ 8%, methanol 15%, water supplies surplus.
Description
Technical field
The invention belongs to oilfield exploitation chemical agent technical field more particularly to a kind of ageing oil low-temperature demulsification thinners
And its preparation method and application.
Background technique
In recent years, as domestic most oilfields enter high water-cut stage and profile control profile control agent and the poly- displacement of reservoir oil of note etc. three times
The promotion and application of oil recovery technique, each oil recovery factory add up the ageing oil about 10 × 10 generated every year in process of production4m3, except containing
Have outside the conventional substances such as petroleum hydrocarbon, colloid, asphalitine, wax, solid grain husk grain, inorganic salts and bacterium, also contains polymer, the displacement of reservoir oil
With surfactant etc., it is continuously increased the processing difficulty of ageing oil and cost, even if improving temperature increases demulsifier concentration pair
Dehydrating aging rate is only 50% or so, these oil emulsions are largely accumulated in settling tank, oil removing pot, and gathering system equipment is caused to make
Declined with rate and run and exception occurs.How from production safety and environmental protection angle, the complicated cream of cost-effective processing
Carburetion had become urgent problem to be solved in the production of oil field already.
In recent years, researcher both domestic and external is by a large amount of experimental study, with ultrasonication method, biological treatment,
The new methods such as microwave treatment method, magnetic handling method handle ageing oil, obtain certain effect, but long in the presence of the processing time,
Processing cost is high and treated the defects of dehydrating aging is not thorough.
Using hot chemical treatment process, defect is ageing oil poor processing effect, is not suitable with production requirement, major embodiment
: 1. ageing oil treatment effect is gradually deteriorated, and increases crude oil dehydration cost, has been not suitable with the demand of production；2. the amount of transition zone
It is more and more, hidden danger is brought for the steady production of system；3. current ageing oil treatment process in sewage precipitation tank sump oil,
The effect is unsatisfactory for sewage intermediate layer handles；4. the ageing oil sedimentation time is long, dehydration temperaturre is high, energy consumption is higher, improves production
Operating cost.The action principle of thermochemical treatment method is that ageing oil is heated to certain temperature, close between oil, water to increase
It is poor to spend, and reduces aging oil viscosity, specific surfactant is added later, and be sufficiently mixed therewith, is allowed to destroy original stabilization
Oil-water interfacial film, make dispersion droplet and be polymerized to big water droplet, under the action of grease density contrast, sedimentation separation is come out, heat
The advantages of chemical treatment is that treatment process is simple, is suitble to establish larger central treating station, reduces equipment investment, and can be with
Thermal energy is efficiently utilized, the disadvantage is that the processing operation time is long, dosage is more, energy consumption is high；Treatment effect is seriously by medicament
The influence of type and dosage still contains sub-fraction after crude Treatment because not yet finding the preferable reagent combination of effect at present
Water and solid impurity, it is poor for complicated component, reluctant ageing oil adaptability.
Summary of the invention
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, a kind of low temperature aging oil chemical treatment side is provided
Method overcomes in the prior art 1: the time that ageing oil is handled is long, poor processing effect；2: processing cost is high, treated
Dehydrating aging is not thorough, dehydration temperaturre is high, improves production run cost；3: processing dosage is more, energy consumption is high, processing effect
The problems such as fruit is seriously influenced by medicament kind and dosage.
In order to solve technical problem, the technical scheme is that a kind of ageing oil low-temperature demulsification thinner, effectively at
Divide includes dodecyl benzene sulfonic acid triethanolamine, fatty alcohol polyoxyethylene ether, castor oil polyoxyethylene ether, butyl glycol ether, ten
Six alkyl trimethyl ammonium bromides, diethylene triamine pentacetic acid (DTPA) ferrisodium, oil-soluble comb-shaped polymer and methanol, wherein each effective component
Weight percentage are as follows: dodecyl benzene sulfonic acid triethanolamine 5% ~ 15%, fatty alcohol polyoxyethylene ether 5% ~ 10%, castor oil are poly-
Ethylene oxide ether 15% ~ 30%, butyl glycol ether 2% ~ 8%, cetyl trimethylammonium bromide 5% ~ 15%, diethylene triamine pentacetic acid (DTPA) iron
Sodium 5% ~ 15%, oil-soluble comb-shaped polymer 2% ~ 8%, methanol 15%, water supplies surplus.
Preferably, the weight percentage of each effective component are as follows: dodecyl benzene sulfonic acid triethanolamine 5% ~ 10%, rouge
Fat alcohol polyoxyethylene ether 8% ~ 10%, castor oil polyoxyethylene ether 20% ~ 25%, butyl glycol ether 3% ~ 5%, cetyl trimethyl bromine
Change ammonium 5% ~ 10%, diethylene triamine pentacetic acid (DTPA) ferrisodium 5% ~ 10%, oil-soluble comb-shaped polymer 5% ~ 8%, methanol 15%, water is supplied remaining
Amount.
Preferably, the weight percentage of each effective component are as follows: dodecyl benzene sulfonic acid triethanolamine 10%, fat
Alcohol polyoxyethylene ether 8%, castor oil polyoxyethylene ether 20%, butyl glycol ether 4%, cetyl trimethylammonium bromide 7%, divinyl
Pentaacetic acid ferrisodium 10%, oil-soluble comb-shaped polymer 8%, methanol 15%, water 18%.
Preferably, the active constituent content of the dodecyl benzene sulfonic acid triethanolamine is 60%, and HLB value is 8~10.
Preferably, the fatty alcohol polyoxyethylene ether is fat alcohol polyoxyethylene ether MOA-3, wherein fat alcohol polyoxyethylene ether
The active constituent content of MOA-3 is 99%, and wherein HLB value is 6~7.
Preferably, the castor oil polyoxyethylene ether is castor oil polyoxyethylene ether EL-10, wherein castor oil polyoxyethylene
The active constituent content of ether EL-10 is 99%, and wherein HLB value is 6~7.
Preferably, the active constituent content of the butyl glycol ether is 99%, the cetyl trimethylammonium bromide
Active constituent content is 70%, and the iron content in the diethylene triamine pentacetic acid (DTPA) ferrisodium is 7%.
Preferably, the oil-soluble comb-shaped polymer is that oil-soluble pectination polymerize Basoflux PI42, and the methanol has
Effective component content is 99%.
Preferably, a kind of preparation method of as above described in any item ageing oils low-temperature demulsification thinner, including it is following
Step:
It is poly- that step 1) sequentially adds dodecyl benzene sulfonic acid triethanolamine, fatty alcohol polyoxyethylene ether, castor oil in a kettle
Ethylene oxide ether, butyl glycol ether, cetyl trimethylammonium bromide, diethylene triamine pentacetic acid (DTPA) ferrisodium, the polymerization of oil-soluble pectination
Object and water, wherein the weight percentage of each effective component are as follows: dodecyl benzene sulfonic acid triethanolamine 5% ~ 15%, fatty alcohol polyoxy
Vinethene 5% ~ 10%, castor oil polyoxyethylene ether 15% ~ 30%, butyl glycol ether 2% ~ 8%, cetyl trimethylammonium bromide 5% ~
15%, diethylene triamine pentacetic acid (DTPA) ferrisodium 5% ~ 15%, oil-soluble comb-shaped polymer 2% ~ 8% removes 15% methanol, is then mended with water
Sufficient surplus；
Step 2 opens agitating device, after being heated to 45 DEG C, reaction 30 minutes, stops heating, 15% methanol is then added, connects
Be down to room temperature and obtain the ageing oil low-temperature demulsification thinner.
Preferably, a kind of application of the low-temperature demulsification thinner of the ageing oil as described in the next item up, the ageing oil is with low
Processing of the temperature demulsification thinner for ageing oil in crude oil production process, in processing directly by ageing oil low-temperature demulsification viscosity reduction
Agent is added in ageing oil settling tank, wherein ageing oil with 0.1% that the additional amount of low-temperature demulsification thinner is aging oil volume ~
0.3%。
Compared with the existing technology, the present invention has the advantages that
(1) ageing oil of the present invention is reached using the mechanism of emulsification by changing the HLB value of ageing oil with low-temperature demulsification thinner
The purpose of breaking emulsion and dewatering, while being improved using ionic surfactant and to be dispersed in emulsification W/O particle and mechanical admixture
Coalescence rate to improve the demulsification efficiency of complicated oil emulsion, and reduces old in 30 DEG C of dehydrating aging rates up to 98% or more
84% or more carburetion viscosity, and 10 DEG C of ageing oil condensation point or more can be reduced；
(2) present invention compared with the prior art, there is technique to require lower, short processing time, operating cost is low, treatment effect
Well, treated, and dehydrating aging is thorough, processing dosage is few, low energy consumption, and treatment effect is by medicament kind and Dose Effect
It is small；
(3) ageing oil low-temperature demulsification thinner of the invention can effectively eliminate suspended particulate caused by dirt and organic matter, can be fast
Speed reduces oil water interfacial tension, reduces ageing oil condensation point and viscosity, and water particle is made to gather the dehydration speed for simultaneously improving ageing oil rapidly
Rate, to achieve the purpose that ageing oil grease and mechanical admixture separation.
Specific embodiment
The specific embodiment of the invention is described below with reference to embodiment:
It should be noted that structure, ratio, size etc. that this specification is illustrated, only to cooperate specification revealed
Content is not intended to limit the invention enforceable qualifications, Ren Hejie so that those skilled in the art understands and reads
The modification of structure, the change of proportionate relationship or the adjustment of size are not influencing the effect of present invention can be generated and can reach
Under purpose, should all still it fall in the range of disclosed technology contents can cover.
Meanwhile cited such as "upper" in this specification, "lower", "left", "right", " centre " and " one " term, also
Only being illustrated convenient for narration, rather than to limit the scope of the invention, relativeness is altered or modified, in nothing
Under essence change technology contents, when being also considered as the enforceable scope of the present invention.
Embodiment 1
The invention discloses a kind of ageing oil low-temperature demulsification thinner, effective component includes three ethyl alcohol of dodecyl benzene sulfonic acid
Amine, fatty alcohol polyoxyethylene ether, castor oil polyoxyethylene ether, butyl glycol ether, cetyl trimethylammonium bromide, divinyl three
Triamine pentaacetic acid ferrisodium, oil-soluble comb-shaped polymer and methanol, wherein the weight percentage of each effective component are as follows: detergent alkylate
Sulfonic acid triethanolamine 5% ~ 15%, fatty alcohol polyoxyethylene ether 5% ~ 10%, castor oil polyoxyethylene ether 15% ~ 30%, butyl glycol ether
2% ~ 8%, cetyl trimethylammonium bromide 5% ~ 15%, diethylene triamine pentacetic acid (DTPA) ferrisodium 5% ~ 15%, oil-soluble comb-shaped polymer
2% ~ 8%, methanol 15%, water supplies surplus.
Embodiment 2
The invention discloses a kind of ageing oil low-temperature demulsification thinner, effective component includes three ethyl alcohol of dodecyl benzene sulfonic acid
Amine, fatty alcohol polyoxyethylene ether, castor oil polyoxyethylene ether, butyl glycol ether, cetyl trimethylammonium bromide, divinyl three
Triamine pentaacetic acid ferrisodium, oil-soluble comb-shaped polymer and methanol, wherein the weight percentage of each effective component are as follows: detergent alkylate
Sulfonic acid triethanolamine 5% ~ 15%, fatty alcohol polyoxyethylene ether 5% ~ 10%, castor oil polyoxyethylene ether 15% ~ 30%, butyl glycol ether
2% ~ 8%, cetyl trimethylammonium bromide 5% ~ 15%, diethylene triamine pentacetic acid (DTPA) ferrisodium 5% ~ 15%, oil-soluble comb-shaped polymer
2% ~ 8%, methanol 15%, water supplies surplus.
Preferably, the weight percentage of each effective component are as follows: dodecyl benzene sulfonic acid triethanolamine 5% ~ 10%, rouge
Fat alcohol polyoxyethylene ether 8% ~ 10%, castor oil polyoxyethylene ether 20% ~ 25%, butyl glycol ether 3% ~ 5%, cetyl trimethyl bromine
Change ammonium 5% ~ 10%, diethylene triamine pentacetic acid (DTPA) ferrisodium 5% ~ 10%, oil-soluble comb-shaped polymer 5% ~ 8%, methanol 15%, water is supplied remaining
Amount.
Embodiment 3
The invention discloses a kind of ageing oil low-temperature demulsification thinner, effective component includes three ethyl alcohol of dodecyl benzene sulfonic acid
Amine, fatty alcohol polyoxyethylene ether, castor oil polyoxyethylene ether, butyl glycol ether, cetyl trimethylammonium bromide, divinyl three
Triamine pentaacetic acid ferrisodium, oil-soluble comb-shaped polymer and methanol, wherein the weight percentage of each effective component are as follows: detergent alkylate
Sulfonic acid triethanolamine 5% ~ 15%, fatty alcohol polyoxyethylene ether 5% ~ 10%, castor oil polyoxyethylene ether 15% ~ 30%, butyl glycol ether
2% ~ 8%, cetyl trimethylammonium bromide 5% ~ 15%, diethylene triamine pentacetic acid (DTPA) ferrisodium 5% ~ 15%, oil-soluble comb-shaped polymer
2% ~ 8%, methanol 15%, water supplies surplus.
Preferably, the weight percentage of each effective component are as follows: dodecyl benzene sulfonic acid triethanolamine 5% ~ 10%, rouge
Fat alcohol polyoxyethylene ether 8% ~ 10%, castor oil polyoxyethylene ether 20% ~ 25%, butyl glycol ether 3% ~ 5%, cetyl trimethyl bromine
Change ammonium 5% ~ 10%, diethylene triamine pentacetic acid (DTPA) ferrisodium 5% ~ 10%, oil-soluble comb-shaped polymer 5% ~ 8%, methanol 15%, water is supplied remaining
Amount.
Preferably, the weight percentage of each effective component are as follows: dodecyl benzene sulfonic acid triethanolamine 10%, fat
Alcohol polyoxyethylene ether 8%, castor oil polyoxyethylene ether 20%, butyl glycol ether 4%, cetyl trimethylammonium bromide 7%, divinyl
Pentaacetic acid ferrisodium 10%, oil-soluble comb-shaped polymer 8%, methanol 15%, water 18%.
Preferably, the active constituent content of the dodecyl benzene sulfonic acid triethanolamine is 60%, and HLB value is 8~10.
Preferably, the fatty alcohol polyoxyethylene ether is fat alcohol polyoxyethylene ether MOA-3, wherein fat alcohol polyoxyethylene ether
The active constituent content of MOA-3 is 99%, and wherein HLB value is 6~7.
Preferably, the castor oil polyoxyethylene ether is castor oil polyoxyethylene ether EL-10, wherein castor oil polyoxyethylene
The active constituent content of ether EL-10 is 99%, and wherein HLB value is 6~7.
Preferably, the active constituent content of the butyl glycol ether is 99%, the cetyl trimethylammonium bromide
Active constituent content is 70%, and the iron content in the diethylene triamine pentacetic acid (DTPA) ferrisodium is 7%.
Preferably, the oil-soluble comb-shaped polymer is that oil-soluble pectination polymerize Basoflux PI42, and the methanol has
Effective component content is 99%.
Embodiment 4
The invention discloses a kind of ageing oil low-temperature demulsification thinner, effective component includes three ethyl alcohol of dodecyl benzene sulfonic acid
Amine, fatty alcohol polyoxyethylene ether, castor oil polyoxyethylene ether, butyl glycol ether, cetyl trimethylammonium bromide, divinyl three
Triamine pentaacetic acid ferrisodium, oil-soluble comb-shaped polymer and methanol, wherein the weight percentage of each effective component are as follows: detergent alkylate
Sulfonic acid triethanolamine 5% ~ 15%, fatty alcohol polyoxyethylene ether 5% ~ 10%, castor oil polyoxyethylene ether 15% ~ 30%, butyl glycol ether
2% ~ 8%, cetyl trimethylammonium bromide 5% ~ 15%, diethylene triamine pentacetic acid (DTPA) ferrisodium 5% ~ 15%, oil-soluble comb-shaped polymer
2% ~ 8%, methanol 15%, water supplies surplus.
Preferably, the weight percentage of each effective component are as follows: dodecyl benzene sulfonic acid triethanolamine 5% ~ 10%, rouge
Fat alcohol polyoxyethylene ether 8% ~ 10%, castor oil polyoxyethylene ether 20% ~ 25%, butyl glycol ether 3% ~ 5%, cetyl trimethyl bromine
Change ammonium 5% ~ 10%, diethylene triamine pentacetic acid (DTPA) ferrisodium 5% ~ 10%, oil-soluble comb-shaped polymer 5% ~ 8%, methanol 15%, water is supplied remaining
Amount.
Preferably, the weight percentage of each effective component are as follows: dodecyl benzene sulfonic acid triethanolamine 10%, fat
Alcohol polyoxyethylene ether 8%, castor oil polyoxyethylene ether 20%, butyl glycol ether 4%, cetyl trimethylammonium bromide 7%, divinyl
Pentaacetic acid ferrisodium 10%, oil-soluble comb-shaped polymer 8%, methanol 15%, water 18%.
Preferably, the active constituent content of the dodecyl benzene sulfonic acid triethanolamine is 60%, and HLB value is 8~10.
Preferably, the fatty alcohol polyoxyethylene ether is fat alcohol polyoxyethylene ether MOA-3, wherein fat alcohol polyoxyethylene ether
The active constituent content of MOA-3 is 99%, and wherein HLB value is 6~7.
Preferably, the castor oil polyoxyethylene ether is castor oil polyoxyethylene ether EL-10, wherein castor oil polyoxyethylene
The active constituent content of ether EL-10 is 99%, and wherein HLB value is 6~7.
Preferably, the active constituent content of the butyl glycol ether is 99%, the cetyl trimethylammonium bromide
Active constituent content is 70%, and the iron content in the diethylene triamine pentacetic acid (DTPA) ferrisodium is 7%.
Preferably, the oil-soluble comb-shaped polymer is that oil-soluble pectination polymerize Basoflux PI42, and the methanol has
Effective component content is 99%.
Preferably, a kind of preparation method of as above described in any item ageing oils low-temperature demulsification thinner, including it is following
Step:
It is poly- that step 1) sequentially adds dodecyl benzene sulfonic acid triethanolamine, fatty alcohol polyoxyethylene ether, castor oil in a kettle
Ethylene oxide ether, butyl glycol ether, cetyl trimethylammonium bromide, diethylene triamine pentacetic acid (DTPA) ferrisodium, the polymerization of oil-soluble pectination
Object and water, wherein the weight percentage of each effective component are as follows: dodecyl benzene sulfonic acid triethanolamine 5% ~ 15%, fatty alcohol polyoxy
Vinethene 5% ~ 10%, castor oil polyoxyethylene ether 15% ~ 30%, butyl glycol ether 2% ~ 8%, cetyl trimethylammonium bromide 5% ~
15%, diethylene triamine pentacetic acid (DTPA) ferrisodium 5% ~ 15%, oil-soluble comb-shaped polymer 2% ~ 8% removes 15% methanol, is then mended with water
Sufficient surplus；
Step 2 opens agitating device, after being heated to 45 DEG C, reaction 30 minutes, stops heating, 15% methanol is then added, connects
Be down to room temperature and obtain the ageing oil low-temperature demulsification thinner.
Embodiment 5
The invention discloses a kind of ageing oil low-temperature demulsification thinner, effective component includes three ethyl alcohol of dodecyl benzene sulfonic acid
Amine, fatty alcohol polyoxyethylene ether, castor oil polyoxyethylene ether, butyl glycol ether, cetyl trimethylammonium bromide, divinyl three
Triamine pentaacetic acid ferrisodium, oil-soluble comb-shaped polymer and methanol, wherein the weight percentage of each effective component are as follows: detergent alkylate
Sulfonic acid triethanolamine 5% ~ 15%, fatty alcohol polyoxyethylene ether 5% ~ 10%, castor oil polyoxyethylene ether 15% ~ 30%, butyl glycol ether
2% ~ 8%, cetyl trimethylammonium bromide 5% ~ 15%, diethylene triamine pentacetic acid (DTPA) ferrisodium 5% ~ 15%, oil-soluble comb-shaped polymer
2% ~ 8%, methanol 15%, water supplies surplus.
Preferably, the weight percentage of each effective component are as follows: dodecyl benzene sulfonic acid triethanolamine 5% ~ 10%, rouge
Fat alcohol polyoxyethylene ether 8% ~ 10%, castor oil polyoxyethylene ether 20% ~ 25%, butyl glycol ether 3% ~ 5%, cetyl trimethyl bromine
Change ammonium 5% ~ 10%, diethylene triamine pentacetic acid (DTPA) ferrisodium 5% ~ 10%, oil-soluble comb-shaped polymer 5% ~ 8%, methanol 15%, water is supplied remaining
Amount.
Preferably, the weight percentage of each effective component are as follows: dodecyl benzene sulfonic acid triethanolamine 10%, fat
Alcohol polyoxyethylene ether 8%, castor oil polyoxyethylene ether 20%, butyl glycol ether 4%, cetyl trimethylammonium bromide 7%, divinyl
Pentaacetic acid ferrisodium 10%, oil-soluble comb-shaped polymer 8%, methanol 15%, water 18%.
Preferably, the active constituent content of the dodecyl benzene sulfonic acid triethanolamine is 60%, and HLB value is 8~10.
Preferably, the fatty alcohol polyoxyethylene ether is fat alcohol polyoxyethylene ether MOA-3, wherein fat alcohol polyoxyethylene ether
The active constituent content of MOA-3 is 99%, and wherein HLB value is 6~7.
Preferably, the castor oil polyoxyethylene ether is castor oil polyoxyethylene ether EL-10, wherein castor oil polyoxyethylene
The active constituent content of ether EL-10 is 99%, and wherein HLB value is 6~7.
Preferably, the active constituent content of the butyl glycol ether is 99%, the cetyl trimethylammonium bromide
Active constituent content is 70%, and the iron content in the diethylene triamine pentacetic acid (DTPA) ferrisodium is 7%.
Preferably, the oil-soluble comb-shaped polymer is that oil-soluble pectination polymerize Basoflux PI42, and the methanol has
Effective component content is 99%.
Preferably, a kind of preparation method of as above described in any item ageing oils low-temperature demulsification thinner, including it is following
Step:
It is poly- that step 1) sequentially adds dodecyl benzene sulfonic acid triethanolamine, fatty alcohol polyoxyethylene ether, castor oil in a kettle
Ethylene oxide ether, butyl glycol ether, cetyl trimethylammonium bromide, diethylene triamine pentacetic acid (DTPA) ferrisodium, the polymerization of oil-soluble pectination
Object and water, wherein the weight percentage of each effective component are as follows: dodecyl benzene sulfonic acid triethanolamine 5% ~ 15%, fatty alcohol polyoxy
Vinethene 5% ~ 10%, castor oil polyoxyethylene ether 15% ~ 30%, butyl glycol ether 2% ~ 8%, cetyl trimethylammonium bromide 5% ~
15%, diethylene triamine pentacetic acid (DTPA) ferrisodium 5% ~ 15%, oil-soluble comb-shaped polymer 2% ~ 8% removes 15% methanol, is then mended with water
Sufficient surplus；
Step 2 opens agitating device, after being heated to 45 DEG C, reaction 30 minutes, stops heating, 15% methanol is then added, connects
Be down to room temperature and obtain the ageing oil low-temperature demulsification thinner.
Preferably, a kind of application of as above described in any item ageing oils low-temperature demulsification thinner, the ageing oil are used
Processing of the low-temperature demulsification thinner for ageing oil in crude oil production process directly drops ageing oil with low-temperature demulsification in processing
Stick is added in ageing oil settling tank, wherein ageing oil 0.1% that the additional amount of low-temperature demulsification thinner is aging oil volume
~0.3%。
Application Example
Dodecyl benzene sulfonic acid triethanolamine of the present invention, fat alcohol polyoxyethylene ether MOA-3, castor oil polyoxyethylene ether EL-
10, butyl glycol ether, cetyl trimethylammonium bromide, diethylene triamine pentacetic acid (DTPA) ferrisodium, the polymerization of oil-soluble pectination
Basoflux PI42 and methanol are commercial product；Wherein dodecyl benzene sulfonic acid triethanolamine can effectively improve in ageing oil
Coalescence rate between water particle；Wherein fat alcohol polyoxyethylene ether MOA-3 is soluble in oil and polar solvent, in diffusion in water
Shape has good emulsifiability, can effectively be adsorbed in crude oil, change the oil water interfacial tension of ageing oil；Castor oil polyoxy
Vinethene EL-10 is in dispersed in water, has excellent emulsification, diffusion, can effectively destroy the HLB value of ageing oil, is dropped
The stability of low ageing oil；Butyl glycol ether can effectively eliminate the lotion that waxy component is formed in ageing oil；Cetyl front three
Base ammonium bromide and anion and nonionic surfactant formation synergistic effect in formula, can effectively reduce oil-water interfaces
Power；Diethylene triamine pentacetic acid (DTPA) ferrisodium, molecular weight 468.2 can effectively eliminate the content of mechanical admixture in ageing oil；Oil-soluble comb
Shape polymerize a kind of oil-soluble comb-shaped polymer that Basoflux PI42 is BASF production, has on main chain and (or) branch
Can also there be the polar portion for making wax Jingjing type generate distortion with the nonpolar moiety of wax molecule cocrystallization (eutectic)；Methanol
Main function is to reduce product condensation point, improves dispersion rate of the thinner in ageing oil.
Application Example 1: three ethyl alcohol of dodecyl benzene sulfonic acid that weight percentage is 5% is sequentially added into reaction kettle
Amine, 10% fat alcohol polyoxyethylene ether MOA-3,15% castor oil polyoxyethylene ether EL-10,8% butyl glycol ether, the ten of 5%
Six alkyl trimethyl ammonium bromides, 15% diethylene triamine pentacetic acid (DTPA) ferrisodium, 2% oil-soluble pectination polymerize Basoflux PI42,
The methanol that weight percentage is 15% is removed, the water that weight percentage is 25% is subsequently added into；Agitating device is opened, is heated to
After 45 DEG C, reaction 30 minutes, stop heating, the methanol that weight percentage is 15% is then added, is then down to room temperature and obtains institute
State ageing oil low-temperature demulsification thinner.
Application Example 2: three ethyl alcohol of dodecyl benzene sulfonic acid that weight percentage is 15% is sequentially added into reaction kettle
Amine, 5% fat alcohol polyoxyethylene ether MOA-3,30% castor oil polyoxyethylene ether EL-10,2% butyl glycol ether, the ten of 15%
Six alkyl trimethyl ammonium bromides, 5% diethylene triamine pentacetic acid (DTPA) ferrisodium, 8% oil-soluble pectination polymerize Basoflux PI42,
The methanol that weight percentage is 15% is removed, the water that weight percentage is 5% is subsequently added into；Agitating device is opened, is heated to
After 45 DEG C, reaction 30 minutes, stop heating, the methanol that weight percentage is 15% is then added, is then down to room temperature and obtains institute
State ageing oil low-temperature demulsification thinner.
Application Example 3: three ethyl alcohol of dodecyl benzene sulfonic acid that weight percentage is 10% is sequentially added into reaction kettle
Amine, 5% fat alcohol polyoxyethylene ether MOA-3,30% castor oil polyoxyethylene ether EL-10,2% butyl glycol ether, the ten of 15%
Six alkyl trimethyl ammonium bromides, 5% diethylene triamine pentacetic acid (DTPA) ferrisodium, 8% oil-soluble pectination polymerize Basoflux PI42,
The methanol that weight percentage is 15% is removed, the water that weight percentage is 5% is subsequently added into；Agitating device is opened, is heated to
After 45 DEG C, reaction 30 minutes, stop heating, the methanol that weight percentage is 15% is then added, is then down to room temperature and obtains institute
State ageing oil low-temperature demulsification thinner.
Application Example 4: three ethyl alcohol of dodecyl benzene sulfonic acid that weight percentage is 10% is sequentially added into reaction kettle
Amine, 8% fat alcohol polyoxyethylene ether MOA-3,25% castor oil polyoxyethylene ether EL-10,3% butyl glycol ether, the ten of 10%
Six alkyl trimethyl ammonium bromides, 10% diethylene triamine pentacetic acid (DTPA) ferrisodium, 5% oil-soluble pectination polymerize Basoflux PI42,
The methanol that weight percentage is 15% is removed, the water that weight percentage is 14% is subsequently added into；Agitating device is opened, is heated to
After 45 DEG C, reaction 30 minutes, stop heating, the methanol that weight percentage is 15% is then added, is then down to room temperature and obtains institute
State ageing oil low-temperature demulsification thinner.
Application Example 5: three ethyl alcohol of dodecyl benzene sulfonic acid that weight percentage is 5% is sequentially added into reaction kettle
Amine, 10% fat alcohol polyoxyethylene ether MOA-3,20% castor oil polyoxyethylene ether EL-10,5% butyl glycol ether, the ten of 5%
Six alkyl trimethyl ammonium bromides, 5% diethylene triamine pentacetic acid (DTPA) ferrisodium, 8% oil-soluble pectination polymerize Basoflux PI42,
The methanol that weight percentage is 15% is removed, the water that weight percentage is 27% is subsequently added into；Agitating device is opened, is heated to
After 45 DEG C, reaction 30 minutes, stop heating, the methanol that weight percentage is 15% is then added, is then down to room temperature and obtains institute
State ageing oil low-temperature demulsification thinner.
Application Example 6: three ethyl alcohol of dodecyl benzene sulfonic acid that weight percentage is 10% is sequentially added into reaction kettle
Amine, 8% fat alcohol polyoxyethylene ether MOA-3,20% castor oil polyoxyethylene ether EL-10,4% butyl glycol ether, the 16 of 7%
Alkyl trimethyl ammonium bromide, 10% diethylene triamine pentacetic acid (DTPA) ferrisodium, 8% oil-soluble pectination polymerize Basoflux PI42, remove
Removing weight percentage is 15% methanol, is subsequently added into the water that weight percentage is 18%；Agitating device is opened, is heated to 45
DEG C, after reaction 30 minutes, stop heating, the methanol that weight percentage is 15% be then added, be then down to room temperature obtain it is described
Ageing oil low-temperature demulsification thinner.
Above-mentioned Application Example product is tested for the property:
Test 1: compatibility evaluation is carried out with low-temperature demulsification thinner to the ageing oil of application Examples 1 to 6, according to SY/
T5281-2000 " the crude oil demulsifier service performance method of inspection (bottle examination method) " carries out dehydration rate test；According to SY_T6300-
Appendix A in 2009 " recovering the oil with clear, wax-proofing agent technical conditions ", recover the oil wax-proofing agent inhibiting rate for wax precipitation, the measuring method of viscosity break ratio carry out
Viscosity break ratio test；According to SY/T 5767-2016 " crude oil pipeline adds pour-point depressant conveying technology specification ", the test of pour point depression amplitude
Method carries out the test of pour point depression amplitude, and measuring temperature is 30 DEG C, the ageing oil low-temperature demulsification thinner of Application Example 1~6
Demulsification performance test result is shown in Table 1.
The demulsification performance of 1 Application Example of table, 1~6 ageing oil low-temperature demulsification thinner is tested
As shown in Table 1, thinner is added in ageing oil of the present invention, the viscosity and condensation point of ageing oil are greatly reduced, and can effectively mention
The rate of water loss of high ageing oil reduces the moisture content of crude oil, the experimental results showed that ageing oil low-temperature demulsification viscosity reduction agent prescription
The requirement of thermochemical method dehydrating aging can be reached under cryogenic.
Quality and technical index of the present invention is as follows:
Appearance: being transparent uniform liquid under room temperature；PH value: 6~8；Dehydration rate >=93%；Interfacial tension≤5 × 10-3MN/m, it is former
Oily viscosity break ratio >=65%, condensation point of crude oil amplitude >=6 DEG C reach as high as 146 DEG C.
Existing technology is compared, and can effectively improve the dehydration of ageing oil under cryogenic using thinner of the present invention
Rate reduces the energy consumption of demulsification process, has effectively eliminated the mechanical admixture in ageing oil, and significantly reduce ageing oil
Condensation point and viscosity keep water quality in ageing oil and mechanical admixture separation more thorough, compared with centrifugal separation, processing cost from
450 yuan/ton are reduced to 50 yuan/ton, and processing cost declines to a great extent.
Ageing oil of the present invention is reached using the mechanism of emulsification by changing the HLB value of ageing oil with low-temperature demulsification thinner
The purpose of breaking emulsion and dewatering, while being improved using ionic surfactant and to be dispersed in emulsification W/O particle and mechanical admixture
Coalescence rate to improve the demulsification efficiency of complicated oil emulsion, and reduces old in 30 DEG C of dehydrating aging rates up to 98% or more
84% or more carburetion viscosity, and 10 DEG C of ageing oil condensation point or more can be reduced.
The present invention compared with the prior art, there is technique to require lower, short processing time, operating cost is low, treatment effect
Well, treated, and dehydrating aging is thorough, processing dosage is few, low energy consumption, and treatment effect is by medicament kind and Dose Effect
It is small.
Ageing oil low-temperature demulsification thinner of the invention can effectively eliminate suspended particulate caused by dirt and organic matter, can be fast
Speed reduces oil water interfacial tension, reduces ageing oil condensation point and viscosity, and water particle is made to gather the dehydration speed for simultaneously improving ageing oil rapidly
Rate, to achieve the purpose that ageing oil grease and mechanical admixture separation.
The preferred embodiment for the present invention is explained in detail above, but the present invention is not limited to the above embodiments,
Those of ordinary skill in the art within the scope of knowledge, can also make various without departing from the purpose of the present invention
Variation.
Many other changes and remodeling can be made by not departing from the spirit and scope of the present invention.It should be appreciated that the present invention is not
It is limited to specific embodiment, the scope of the present invention is defined by the following claims.
Claims (10)
1. a kind of ageing oil low-temperature demulsification thinner, it is characterised in that: effective component includes three ethyl alcohol of dodecyl benzene sulfonic acid
Amine, fatty alcohol polyoxyethylene ether, castor oil polyoxyethylene ether, butyl glycol ether, cetyl trimethylammonium bromide, divinyl three
Triamine pentaacetic acid ferrisodium, oil-soluble comb-shaped polymer and methanol, wherein the weight percentage of each effective component are as follows: detergent alkylate
Sulfonic acid triethanolamine 5% ~ 15%, fatty alcohol polyoxyethylene ether 5% ~ 10%, castor oil polyoxyethylene ether 15% ~ 30%, butyl glycol ether
2% ~ 8%, cetyl trimethylammonium bromide 5% ~ 15%, diethylene triamine pentacetic acid (DTPA) ferrisodium 5% ~ 15%, oil-soluble comb-shaped polymer
2% ~ 8%, methanol 15%, water supplies surplus.
2. a kind of ageing oil low-temperature demulsification thinner according to claim 1, it is characterised in that: each effective component
Weight percentage are as follows: dodecyl benzene sulfonic acid triethanolamine 5% ~ 10%, fatty alcohol polyoxyethylene ether 8% ~ 10%, castor oil are poly-
Ethylene oxide ether 20% ~ 25%, butyl glycol ether 3% ~ 5%, cetyl trimethylammonium bromide 5% ~ 10%, diethylene triamine pentacetic acid (DTPA) iron
Sodium 5% ~ 10%, oil-soluble comb-shaped polymer 5% ~ 8%, methanol 15%, water supplies surplus.
3. a kind of ageing oil low-temperature demulsification thinner according to claim 2, it is characterised in that: each effective component
Weight percentage are as follows: dodecyl benzene sulfonic acid triethanolamine 10%, fatty alcohol polyoxyethylene ether 8%, castor oil polyoxyethylene
Ether 20%, butyl glycol ether 4%, cetyl trimethylammonium bromide 7%, diethylene triamine pentacetic acid (DTPA) ferrisodium 10%, oil-soluble pectination
Polymer 8%, methanol 15%, water 18%.
4. a kind of ageing oil low-temperature demulsification thinner according to claim 3, it is characterised in that: the detergent alkylate
The active constituent content of sulfonic acid triethanolamine is 60%, and HLB value is 8~10.
5. a kind of ageing oil low-temperature demulsification thinner according to claim 3, it is characterised in that: the fatty alcohol polyoxy
Vinethene is fat alcohol polyoxyethylene ether MOA-3, and wherein the active constituent content of fat alcohol polyoxyethylene ether MOA-3 is 99%, wherein
HLB value is 6~7.
6. a kind of ageing oil low-temperature demulsification thinner according to claim 3, it is characterised in that: the castor oil polyoxy
Vinethene is castor oil polyoxyethylene ether EL-10, and wherein the active constituent content of castor oil polyoxyethylene ether EL-10 is 99%,
Wherein HLB value is 6~7.
7. a kind of ageing oil low-temperature demulsification thinner according to claim 3, it is characterised in that: the butyl glycol ether
Active constituent content be 99%, the active constituent content of the cetyl trimethylammonium bromide is 70%, the divinyl
Iron content in pentaacetic acid ferrisodium is 7%.
8. a kind of ageing oil low-temperature demulsification thinner according to claim 3, it is characterised in that: the oil-soluble pectination
Polymer is that oil-soluble pectination polymerize Basoflux PI42, and the active constituent content of the methanol is 99%.
9. a kind of preparation method of such as claim 1 ~ 8 described in any item ageing oils low-temperature demulsification thinner, feature exist
In, comprising the following steps:
It is poly- that step 1) sequentially adds dodecyl benzene sulfonic acid triethanolamine, fatty alcohol polyoxyethylene ether, castor oil in a kettle
Ethylene oxide ether, butyl glycol ether, cetyl trimethylammonium bromide, diethylene triamine pentacetic acid (DTPA) ferrisodium, the polymerization of oil-soluble pectination
Object and water, wherein the weight percentage of each effective component are as follows: dodecyl benzene sulfonic acid triethanolamine 5% ~ 15%, fatty alcohol polyoxy
Vinethene 5% ~ 10%, castor oil polyoxyethylene ether 15% ~ 30%, butyl glycol ether 2% ~ 8%, cetyl trimethylammonium bromide 5% ~
15%, diethylene triamine pentacetic acid (DTPA) ferrisodium 5% ~ 15%, oil-soluble comb-shaped polymer 2% ~ 8% removes 15% methanol, is then mended with water
Sufficient surplus；
Step 2 opens agitating device, after being heated to 45 DEG C, reaction 30 minutes, stops heating, 15% methanol is then added, connects
Be down to room temperature and obtain the ageing oil low-temperature demulsification thinner.
10. a kind of application of such as claim 1 ~ 8 described in any item ageing oils low-temperature demulsification thinner, it is characterised in that:
Processing of the ageing oil with low-temperature demulsification thinner for ageing oil in crude oil production process, in processing directly by ageing oil
It is added in ageing oil settling tank with low-temperature demulsification thinner, wherein ageing oil is aging with the additional amount of low-temperature demulsification thinner
The 0.1% ~ 0.3% of oil volume.
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