CN109913190A - A kind of preparation method for removing downhole polymer micelle cleaning agent - Google Patents
A kind of preparation method for removing downhole polymer micelle cleaning agent Download PDFInfo
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- CN109913190A CN109913190A CN201910292016.7A CN201910292016A CN109913190A CN 109913190 A CN109913190 A CN 109913190A CN 201910292016 A CN201910292016 A CN 201910292016A CN 109913190 A CN109913190 A CN 109913190A
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Abstract
The invention discloses a kind of preparation methods for removing downhole polymer micelle cleaning agent, which is characterized in that A lotion is made in water and oleyl alcohol mixed liquor in the presence of surfactants；Water, water-soluble poly ammonium phosphate, ammonium chloride, triisopropanolamine are each that B liquid is made；C liquid is made in water, maleic acid, ethylenediamine, potassium chloride, terephthalaldehyde；D liquid is made in water, sucrose ester, nonylphenol polyoxyethylene ether, lauryl sodium sulfate.Neutral slow de-plugging scale remover is made in the present invention, and pH value is between 6.0 ~ 7.5；Cleaning agent and the waste liquid of cleaning are in neutrality, acid mist will not be generated, the device structure of steel will not be corroded, reach corrosion-free safe de-plugging scale removal, the de-plugging scale remover can not only remove polymer material dirt and the asphalitine dirt of rod-pumped well and screw bolt well, but also can remove such as calcium carbonate, magnesium carbonate, calcium sulfate, iron oxide inorganic scale, and neutral de-plugging scale remover thermal stability is good, using safety and environmental protection, it is suitble to promote.
Description
Technical field
The present invention relates to oil extraction in oil field descaling and blockage relieving chemical cleaning field, in particular to a kind of removing downhole polymer micelle
The preparation method and application of cleaning agent.
Background technique
During water flooding, since foreign liquid and reservoir rock mineral and reservoir fluid etc. are incompatible water
The presence of middle suspended material, microorganism and metabolite, and paraffin, asphalt colloid etc. are precipitated in crude oil, the stratum Chang Yinqi is stifled
Plug declines water injection well water absorbing capacity, and water injection pressure increases, and influences crude oil production.The tamper origin cause of formation and blocking mechanism are concluded such as
Under: Polymer adsorption is detained；Polymer Molecular Weight is incompatible with reservoir pore throat size；Formation fines migration;Bacterium and
Its metabolite;The polymeric micellar that inorganic matter causes;Polymer solution preparation and dilution operation are improper.Make due to various reasons
With polymeric micellar --- organic deposition is formed, this organic deposition is difficult to remove, be cleaned using organic solvent using soda acid cleaning, dirty
Contaminate environment, costly, dangerous.The application, which is combined using lotion with chemical cleaning, removes polymeric micellar dirt and inorganic scale.
The purpose of the present invention is to provide a kind of neutral cleaners applied to industry cleaning link de-plugging scale removal and its preparation and
It is a kind of pH using, cleaning agent of the invention is neutral cleaning agent, mainly for the cleaning of the equipment, pipeline of oil field,
The cleaning agent can both have been removed such as: the organic deposition of wax, asphalitine long-chain can also remove inorganic scale such as: calcium, magnesium, iron
The dirt of precipitating, all the ingredient degradable using safety and environmental protection, main function ingredient are a kind of neutral chelating agent, can effectively be dispersed
Calcium and magnesium precipitating dirt precipitating, it is corrosion-free to equipment to human body, environment fanout free region, and there is also certain scale inhibition effect, transporters
Just.Metal pipe-wall is set there is a phenomenon where hydrogen embrittlement occurs, not to be able to extend oil country tubular good using neutral de-plugging scale remover of the invention
Service life.
Summary of the invention
One of the objects of the present invention is to provide a kind of preparation methods for removing downhole polymer micelle cleaning agent.
A kind of preparation method for removing downhole polymer micelle cleaning agent, which is characterized in that this method has following technique
Step:
(1) it the preparation of oleyl alcohol mixed liquor: in reactor, is added by following composition mass percentage concentration, gasoline: 62 ~ 65%, diesel oil:
8 ~ 12%, n-butanol: 12 ~ 15%, octanol: 6 ~ 10%, AEO-3:1.5 ~ 2.5%, Twee-20:2 ~ 4%, the sum of each component are percentage
Hundred, stirring and dissolving obtains oleyl alcohol mixed liquor；
(2) A lotion is prepared: in high speed disperser, it is added by following composition concentration expressed in percentage by volume, water: 56 ~ 60%, and step (1)
The oleyl alcohol mixed liquor: 34 ~ 40%, the sum of each component is absolutely, to be 1500 turns/min in revolving speed, stir 1.5 hours,
Revolving speed is improved again to 2600 turns/min, is reacted 40min, is stood overnight, obtain A lotion；
(3) B liquid is prepared: in reactor, it is added by following composition mass percentage concentration, water: 76 ~ 80%, and water-soluble poly ammonium phosphate: 8
~ 12%, ammonium chloride: 6 ~ 10%, triisopropanolamine: 4 ~ 6%, the sum of each component is that absolutely, stirring and dissolving obtains B liquid；
(4) C liquid is prepared: in reactor, it is added by following composition mass percentage concentration, water: 72 ~ 78%, and maleic acid: 6 ~ 10%, second
Diamines: 3 ~ 6%, control temperature is cooled to room temperature, adds potassium chloride in 65 ± 2 DEG C of constant temperature, stirring, reaction 60min: 8 ~ 12%, it stirs
It mixes, dissolve, terephthalaldehyde: 3 ~ 6%, the sum of each component is absolutely, to stir and evenly mix, obtain C liquid；
(5) D liquid is prepared: in reactor, it is added by following composition mass percentage concentration, water: 94 ~ 96%, and sucrose ester: 1 ~ 2%, nonyl
Phenol polyethenoxy ether: 1 ~ 2%, lauryl sodium sulfate: 1 ~ 2%, the sum of each component is that absolutely, stirring and dissolving obtains D liquid.
AEO-3 as described in step (1) and Twee-20 mass ratio are 2:3.
The molar ratio of maleic acid described in step (4) and ethylenediamine is 1:1.
Another object of the present invention is to a kind of prepared application methods for removing downhole polymer micelle cleaning agent.
(1) temperature is squeezed into oil well with pump after 70 ~ 80 DEG C of hot water is mixed with A lotion, C liquid by volume for 85:10:5
In, make full of mixing liquid in well, closing well reacts 30 ~ 36 hours, liquid is released；
(2) temperature is squeezed into oil well with pump after 70 ~ 80 DEG C of hot water is mixed with B liquid, C liquid, D liquid by volume for 65:28:6:1
In, make full of mixing liquid in well, closing well reacts 36 ~ 40 hours, liquid is released, and clear water rinses.
Advantages of the present invention and effect are:
(1) present invention, which is made, removes downhole polymer micelle cleaning agent, and pH value is between 6.0 ~ 7.5；Cleaning agent and cleaning it is useless
Liquid is in neutrality, and will not generate acid mist, will not corrode the device structure of steel, reaches corrosion-free safe de-plugging scale removal, neutrality solution
Stifled scale remover thermal stability is good, using safety and environmental protection, is suitble to promote.
(2) present invention, which is made, removes downhole polymer micelle cleaning agent, which both may be used
To remove polymeric micellar dirt and the asphalitine dirt of rod-pumped well and screw bolt well, and such as calcium carbonate, magnesium carbonate, sulfuric acid can be removed
The inorganic scales such as calcium, iron oxide.
(3) present invention, which is made, removes downhole polymer micelle cleaning agent, which does not take off
It falls dirty slag and generates new sediment, there is good complexing, dispersibility, permeability and dissolubility, reactant has dissolution
Property, the problem of not generating dirty slag and secondary precipitation, traditional pickling slag holddown easy to fall off can be efficiently solved and block producing well,
Guarantee safe de-plugging.
(4) present invention, which is made, removes downhole polymer micelle cleaning agent, and the waste liquid of the neutrality de-plugging scale remover is not necessarily to the row of returning
Floor treatment, since this de-plugging agent is made of gasoline, diesel oil, alcohols, aldehydes, complexing agent, emulsifier, inorganic salts etc., with oil
The product after organic deposition and inorganic scale reaction in well is that degradable small-molecule substance reduces without the row's of returning floor treatment
Waste liquid disposal process agent expense.
(5) present invention, which is made, removes downhole polymer micelle cleaning agent, and preparation process is simple, and condition is easily controllable, production
At low cost, use is safe, easy to industrialized production.
Specific embodiment
Embodiment 1
(1) it the preparation of oleyl alcohol mixed liquor: in reactor, is separately added into, gasoline: 640g, diesel oil: 100g, n-butanol: 130g, it is pungent
Alcohol: 80g, AEO-3:20g, Twee-20:30g, stirring and dissolving obtain oleyl alcohol mixed liquor；
(2) A lotion is prepared: it in high speed disperser, is separately added into, water: 630g, and oleyl alcohol mixed liquor described in step (1):
370g is 1500 turns/min in revolving speed, stirs 1.5 hours, then improves revolving speed to 2600 turns/min, reacts 40min, placed
Night obtains A lotion；
(3) B liquid is prepared: in reactor, be separately added into, water: 780g, water-soluble poly ammonium phosphate: 100g, ammonium chloride: 80g, three is different
Propanolamine: 40g, stirring and dissolving obtain B liquid；
(4) C liquid is prepared: in reactor, be separately added into, water: 750g, maleic acid: 80g, ethylenediamine: 40g, control temperature 65 ±
2 DEG C of constant temperature, stirring, reaction 60min, are cooled to room temperature, add potassium chloride: 100g, stirring, dissolution, terephthalaldehyde: 30g is stirred
Mixing is mixed, C liquid is obtained；
(5) D liquid is prepared: it in reactor, is separately added into, water: 955g, and sucrose ester: 15g, nonylphenol polyoxyethylene ether: 15g, 12
Sodium alkyl sulfate: 15g, stirring and dissolving obtain D liquid.
Embodiment 2
(1) it the preparation of oleyl alcohol mixed liquor: in reactor, is separately added into, gasoline: 62kg, diesel oil: 12kg, n-butanol: 15kg, it is pungent
Alcohol: 6kg, AEO-3:1.5kg, Twee-20:2.5kg, stirring and dissolving obtain oleyl alcohol mixed liquor；
(2) A lotion is prepared: it in high speed disperser, is separately added into, water: 65kg, and oleyl alcohol mixed liquor described in step (1):
35kg is 1500 turns/min in revolving speed, stirs 1.5 hours, then improves revolving speed to 2600 turns/min, reacts 40min, placed
Night obtains A lotion；
(3) B liquid is prepared: in reactor, be separately added into, water: 76kg, water-soluble poly ammonium phosphate: 12kg, ammonium chloride: 6kg, three is different
Propanolamine: 6kg, stirring and dissolving obtain B liquid；
(4) C liquid is prepared: in reactor, be separately added into, water: 72kg, maleic acid: 6kg, ethylenediamine: 6kg, control temperature 65 ±
2 DEG C of constant temperature, stirring, reaction 60min, are cooled to room temperature, add potassium chloride: 12kg, stirring, dissolution, terephthalaldehyde: 4kg is stirred
Mixing is mixed, C liquid is obtained；
(5) D liquid is prepared: it in reactor, is separately added into, water: 94kg, and sucrose ester: 2kg, nonylphenol polyoxyethylene ether: 2kg, 12
Sodium alkyl sulfate: 2kg, stirring and dissolving obtain D liquid.
Embodiment 3
(1) it the preparation of oleyl alcohol mixed liquor: in reactor, is separately added into, gasoline: 630g, diesel oil: 80g, n-butanol: 120g, it is pungent
Alcohol: 100g, AEO-3:25g, Twee-20:40g, stirring and dissolving obtain oleyl alcohol mixed liquor；
(2) A lotion is prepared: it in high speed disperser, is separately added into, water: 620g, and oleyl alcohol mixed liquor described in step (1):
380g is 1500 turns/min in revolving speed, stirs 1.5 hours, then improves revolving speed to 2600 turns/min, reacts 40min, placed
Night obtains A lotion；
(3) B liquid is prepared: in reactor, being separately added into, water: 800g, water-soluble poly ammonium phosphate: 80g, ammonium chloride: 70g, three isopropyls
Hydramine: 50g, stirring and dissolving obtain B liquid；
(4) C liquid is prepared: in reactor, be separately added into, water: 780g, maleic acid: 70g, ethylenediamine: 30g, control temperature 65 ±
2 DEG C of constant temperature, stirring, reaction 60min, are cooled to room temperature, add potassium chloride: 80g, stirring, dissolution, terephthalaldehyde: 50g is stirred
Mixing is mixed, C liquid is obtained；
(5) D liquid is prepared: it in reactor, is separately added into, water: 960g, and sucrose ester: 10g, nonylphenol polyoxyethylene ether: 20g, 12
Sodium alkyl sulfate: 10g, stirring and dissolving obtain D liquid.
Embodiment 4
(1) it the preparation of oleyl alcohol mixed liquor: in reactor, is separately added into, gasoline: 650g, diesel oil: 90g, n-butanol: 130g, it is pungent
Alcohol: 70g, AEO-3:25g, Twee-20:35g, stirring and dissolving obtain oleyl alcohol mixed liquor；
(2) A lotion is prepared: it in high speed disperser, is separately added into, water: 640g, and oleyl alcohol mixed liquor described in step (1):
360g is 1500 turns/min in revolving speed, stirs 1.5 hours, then improves revolving speed to 2600 turns/min, reacts 40min, placed
Night obtains A lotion；
(3) B liquid is prepared: in reactor, be separately added into, water: 760g, water-soluble poly ammonium phosphate: 80g, ammonium chloride: 100g, three is different
Propanolamine: 50g, stirring and dissolving obtain B liquid；
(4) C liquid is prepared: in reactor, be separately added into, water: 700g, maleic acid: 100g, ethylenediamine: 50g controls temperature 65
± 2 DEG C of constant temperature, stirring, reaction 60min, are cooled to room temperature, add potassium chloride: 90g, stirring, dissolution, terephthalaldehyde: 60g,
It stirs and evenly mixs, obtains C liquid；
(5) D liquid is prepared: it in reactor, is separately added into, water: 950g, and sucrose ester: 20g, nonylphenol polyoxyethylene ether: 10g, 12
Sodium alkyl sulfate: 20g, stirring and dissolving obtain D liquid.
Embodiment 5
The application method of downhole polymer micelle cleaning agent is removed prepared by 1 ~ embodiment of embodiment 4:
(1) temperature is squeezed into oil well after 60 ~ 65 DEG C of hot water is mixed with A lotion, C liquid by volume for 85:10:5 with pump,
Make full of mixing liquid in well, closing well reacts 30 ~ 36 hours, liquid is released；
(2) temperature is squeezed into oil well with pump after 60 ~ 65 DEG C of hot water is mixed with B liquid, C liquid, D liquid by volume for 65:28:6:1
In, make full of mixing liquid in well, closing well reacts 36 ~ 40 hours, liquid is released, and clear water rinses.
Claims (4)
1. a kind of preparation method for removing downhole polymer micelle cleaning agent, which is characterized in that this method is walked with following technique
It is rapid:
(1) it the preparation of oleyl alcohol mixed liquor: in reactor, is added by following composition mass percentage concentration, gasoline: 62 ~ 65%, diesel oil:
8 ~ 12%, n-butanol: 12 ~ 15%, octanol: 6 ~ 10%, AEO-3:1.5 ~ 2.5%, Twee-20:2 ~ 4%, the sum of each component are percentage
Hundred, stirring and dissolving obtains oleyl alcohol mixed liquor；
(2) A lotion is prepared: in high speed disperser, it is added by following composition concentration expressed in percentage by volume, water: 56 ~ 60%, and step (1)
The oleyl alcohol mixed liquor: 34 ~ 40%, the sum of each component is absolutely, to be 1500 turns/min in revolving speed, stir 1.5 hours,
Revolving speed is improved again to 2600 turns/min, is reacted 40min, is stood overnight, obtain A lotion；
(3) B liquid is prepared: in reactor, it is added by following composition mass percentage concentration, water: 76 ~ 80%, and water-soluble poly ammonium phosphate: 8
~ 12%, ammonium chloride: 6 ~ 10%, triisopropanolamine: 4 ~ 6%, the sum of each component is that absolutely, stirring and dissolving obtains B liquid；
(4) C liquid is prepared: in reactor, it is added by following composition mass percentage concentration, water: 72 ~ 78%, and maleic acid: 6 ~ 10%, second
Diamines: 3 ~ 6%, control temperature is cooled to room temperature, adds potassium chloride in 65 ± 2 DEG C of constant temperature, stirring, reaction 60min: 8 ~ 12%, it stirs
It mixes, dissolve, terephthalaldehyde: 3 ~ 6%, the sum of each component is absolutely, to stir and evenly mix, obtain C liquid；
(5) D liquid is prepared: in reactor, it is added by following composition mass percentage concentration, water: 94 ~ 96%, and sucrose ester: 1 ~ 2%, nonyl
Phenol polyethenoxy ether: 1 ~ 2%, lauryl sodium sulfate: 1 ~ 2%, the sum of each component is that absolutely, stirring and dissolving obtains D liquid.
2. a kind of preparation method for removing downhole polymer micelle cleaning agent according to claim 1, which is characterized in that step
Suddenly AEO-3 described in (1) and Twee-20 mass ratio are 2:3.
3. a kind of preparation method for removing downhole polymer micelle cleaning agent according to claim 1, which is characterized in that step
Suddenly the molar ratio of maleic acid described in (4) and ethylenediamine is 1:1.
4. neutrality prepared by a kind of preparation method for removing downhole polymer micelle cleaning agent according to claim 1 is slow
Fast de-plugging scale remover, which is characterized in that the application method of the neutral slow de-plugging scale remover:
(1) temperature is squeezed into oil well after 70 ~ 80 DEG C of hot water is mixed with A lotion, C liquid by volume for 85:10:5 with pump,
Make full of mixing liquid in well, closing well reacts 30 ~ 36 hours, liquid is released；
(2) temperature is squeezed into oil well with pump after 70 ~ 80 DEG C of hot water is mixed with B liquid, C liquid, D liquid by volume for 65:28:6:1
In, make full of mixing liquid in well, closing well reacts 36 ~ 40 hours, liquid is released, and clear water rinses.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114644962A (en) * | 2022-04-02 | 2022-06-21 | 三达奥克化学股份有限公司 | Polymerized scale cleaning agent and application thereof |
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