CN110129018A - A kind of non-acid deblocking agent and preparation method thereof for heavy oil wells - Google Patents
A kind of non-acid deblocking agent and preparation method thereof for heavy oil wells Download PDFInfo
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- CN110129018A CN110129018A CN201910375872.9A CN201910375872A CN110129018A CN 110129018 A CN110129018 A CN 110129018A CN 201910375872 A CN201910375872 A CN 201910375872A CN 110129018 A CN110129018 A CN 110129018A
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Abstract
The invention discloses a kind of non-acid deblocking agents for heavy oil wells comprising the component of following mass percent: viscous crude dispersing agent 30-60%, inorganic blockages relieving fluid 35-65%, penetration-assisting agent 2-5%, system stabilizers 1-2%；Inorganic blockages relieving fluid consists of the following components in percentage by mass: the siliceous salt 0.5-6% of corrosion, the raw sour agent 6-30% in underground, corrosion inhibiter 0.5-2%, metal ion stabilizing agents 1-3%, remaining is water；The siliceous salt of corrosion is the mixture of one of ammonium fluoride, fluoboric acid amine, hydrogen fluoride amine or at least two, and the raw sour agent in underground is made of formaldehyde and ammonium chloride or polyformaldehyde and ammonium chloride form.De-plugging agent of the invention can effectively release the blocking injury of heavy oil wells near wellbore zone, improve the storey increase design effect of heavy oil wells, and de-plugging returns drain and do not have to carry out emission treatment, can be directly entered production procedure, realize the environmental protection construction of zero-emission.
Description
Technical field
The present invention relates to the reservoir blockages relieving yield-increasing technology in oil exploitation engineering storey increase design, more particularly to non-acid thick
De-plugging of well method belongs to the technical field of thickened oil recovery.
Background technique
It is growing day by day to the demand of fossil energy with being skyrocketed through for world economy, the fortune in the whole world 90% at present
Defeated energy demand is obtained by petroleum.Due to lacking the excessive exploitation of protection and the mankind, Global Oil resource reserve is increasingly
It is few, therefore as world energy supplies day is becoming tight, the viscous crude of rich reserves increasingly causes the attention of various countries.Since viscous crude exists
The feature that viscosity is big, density is big, colloidal bitumen paraffin content is high, to bring very big difficulty, this kind of original to recovery process
Oil may be precipitated with the reduction of temperature due to wax and asphalitine, lost flowability and solidified, cause shaft bottom, pipeline obstruction etc..
Therefore specifically there are physical method and chemical method mainly by the way of pour point depression of crude oil viscosity reduction for the exploitation of heavy oil wells.
Physical method has electromagnetic heating method, electrical heating method, steam flooding method etc., is the mesh for reaching pour-viscosity reduction by the method for heating
, heating effect is obvious, but equipment investment is big, and energy consumption is larger.Chemical method mainly has emulsification pour point depression method, microbial method and stream
Dynamic modifying agent method etc..
Oil exploitation is an extremely complex process, therefore the blocking or injury of any a bite oil well are not single
, it is simple, i.e., heavy oil wells cannot only consider the viscosity reduction of viscous crude, and the de-plugging of heavy oil wells not only only considers to the molten of viscous crude
Solution, dispersion, but de-plugging is carried out from many aspects.The main organic plugging of the injury of heavy oil wells, inorganic blocking, and these two types of injuries
Object is to be interweaved together.In order to improve heavy oil wells plugging removal effect and validity period, one-side releasing blocking not can be carried out, it must
Organic plugging and inorganic blocking must effectively be released simultaneously.
Acidification is the routine techniques of oil/gas well de-plugging, but be acidified can only past release oil/gas well inorganic blocking injury.?
The Acidizing Technology field of sandstone oil reservoir, mud acid is the acid fluid system most commonly seen for one kind of sandstone reservoir acidification, due to soil
Acid reacts very fast with clay mineral, causes acid solution action time short, penetration range is short, and secondary precipitation is serious, effect of increasing production
It is unsatisfactory.SHF technique, SGMA technique, BRMA technique, buffer regulated HF acid technique, fluoboric acid technique, phosphoric acid are developed again later
Chemical industry skill etc..Due to the package of organic injurant, conventional de-plugging system cannot effectively penetrate " having casing " to the knot of injurant
Nucleus (inorganic injury) is released.Therefore injury releasing only cannot be carried out to stratum tamper with a certain seed type de-plugging agent,
If will increase operational procedure and construction risk again using de-plugging is carried out step by step, it is therefore necessary to take one kind for heavy oil wells
Comprehensive de-plugging strategy, while releasing organic injury, inorganic injury, eliminating the inorganic effect between organic injurant.
As the requirement of environmental protection is higher and higher, a large amount of residual sour post-processings being discharged after conventional acidulation de-plugging are difficult, scene
Sour neutralisation treatment must be carried out, while the requirement that drain not can enter production procedure and increase emission treatment is returned in acidification.Moreover,
Conventional acid generates the injury of iron precipitating due to the high corrosion for easily causing line equipment of acid concentration after manufacture, this again will after construction
Assemble core as new injurant.
Summary of the invention
It is a kind of for heavy oil wells it is an object of the invention to provide for the above problem existing for conventional acidulation de-plugging
Non- acid deblocking agent, non-acid de-plugging mode reduce acid and reduce the engineer operation of acid processing to the burn into of pipeline and extend heavy oil wells
De-plugging validity period.
It is a further object to provide a kind of preparation methods of non-acid deblocking agent for heavy oil wells.
Provided by the present invention for the non-acid deblocking agent of heavy oil wells comprising the component of following mass percent: viscous crude point
Powder 30-60%, inorganic blockages relieving fluid 35-65%, penetration-assisting agent 2-5%, system stabilizers 1-2%.
Wherein, the viscous crude dispersing agent is the organic solvent or the compound double solvents of multicomponent of one-component.Preferably
Be, the viscous crude dispersing agent be diesel oil, kerosene, gasoline, naphtha, pentane, n-hexane, n -nonane, pentamethylene, hexamethylene,
It is hexahydrotoluene, benzene, toluene, ethylbenzene, paraxylene, meta-xylene, butyl benzene, octyl benzene, ortho-xylene, n-proplbenzene, right
First and second benzene, trimethylbenzene, indenes, first indenes, tetrahydrofuran, 1,4-benzoquinone, methylnaphthohydroquinone, tetrachloroquinone, phenthazine, lutidines, four
Hydrogen naphthalene it is one of or at least two double solvents.
The inorganic blockages relieving fluid is the nonacid inorganic blockages relieving fluid being made of non-acid components, specifically by following quality percentage
The group of ratio is grouped as: the siliceous salt 0.5-6% of corrosion, the raw sour agent 6-30% in underground, corrosion inhibiter 0.5-2%, metal ion are stablized
Agent 1-3%, remaining is water；The siliceous salt of corrosion be one of ammonium fluoride, fluoboric acid amine, hydrogen fluoride amine or at least two it is mixed
Close object, the raw sour agent in underground is made of formaldehyde and ammonium chloride or polyformaldehyde and ammonium chloride form.The corrosion inhibiter is tallow amine, ten
Six alkanamines, octadecylamine, methenamine, oleic imidazolinone, lauryl imidazoline, thiocarbamide, o-xylene thiourea, lauryl mercaptan,
One of 16 mercaptan, pyridinium chloride hexadecyldimethyl benzyl ammonium, hexadecylpyridinium chloride, butynediols, propilolic alcohol or at least two.Institute
Stating metal ion stabilizing agents is disodium ethylene diamine tetraacetate, nitrilotriacetic acid, citric acid, four sodium of glutamic acid diacetic acid, hydroxyl second
Pitch that di 2 ethylhexyl phosphonic acid, aminotrimethylenephosphonic acid, ethylene diamine tetra methylene phosphonic acid, 2- hydroxyphosphonoacetic acid, oneself is two by four methylenephosphonic acids
One kind or at least two.
The penetration-assisting agent is the substance for reducing viscous crude tamper surface-active, and facilitating blockages relieving fluid, to go deep into semisolid stifled
Plugging removal effect is improved inside plug thing.Preferably, penetration-assisting agent is gaultherolin, repefral, p-methyl benzenesulfonic acid
Methyl esters, dimethyl carbonate, octyl acetate, ethyl propionate and methyl butyrate, Disodium sulfosuccinate, amyl ether, ethylene glycol monobutyl ether,
P-hydroxyanisole, acetone, cyclohexanone and acetophenone, one kind of dimethyl sulfoxide or at least two.
The system stabilizers are mainly the chemical reagent formed with stable dispersion system, realize that blockages relieving fluid is uniform, disperses
Injection reservoir.System stabilizers are Emulsifier EL-60, fatty alcohol polyoxyethylene ether, polyoxyethylene aliphatic alcohol ether, dehydration
Span, polysorbate, polyglyceryl fatty acid ester, sucrose fatty ester, polyethylene glycol, polypropylene glycol, polybutadiene
Alcohol is one such or at least two.
Preferably, each component mass percent for the non-acid deblocking agent of heavy oil wells is as follows: viscous crude dispersing agent 35%,
Inorganic blockages relieving fluid 60%, penetration-assisting agent 4%, system stabilizers 1%.Wherein, viscous crude dispersing agent be naphthane, dimethylbenzene and kerosene by
The double solvents that mass ratio 4:2:1 is mixed.The composition of inorganic blockages relieving fluid is as follows: fluoboric acid amine 4%, polyformaldehyde and ammonium chloride
Composition 12%, corrosion inhibiter 1%, metal ion stabilizing agents 3%, the water 80% of equal mass ratioes.The corrosion inhibiter is oleic acid imidazoles
Quinoline, thiocarbamide, the butynediols composition of 4:1:1 in mass ratio.The metal ion stabilizing agents are disodium ethylene diamine tetraacetate, hydroxyl
Base ethylene-diphosphonic acid, the citric acid composition of 1:1:1 in mass ratio.Penetration-assisting agent is sub- by the gaultherolin and diformazan of equal mass ratioes
Sulfone composition.System stabilizers are made of the fatty alcohol polyoxyethylene ether and polyethylene glycol of equal mass ratioes.
Another to be preferably, each component mass percent of the non-acid deblocking agent for heavy oil wells is as follows: viscous crude dispersing agent
43%, inorganic blockages relieving fluid 50%, penetration-assisting agent 5%, system stabilizers 2%, wherein viscous crude dispersing agent is naphthane, kerosene and fourth
The double solvents that base benzene 20:20:3 in mass ratio is mixed.The composition of inorganic blockages relieving fluid is as follows: amine fluoride 3%, formaldehyde and chlorine
Change composition 15%, corrosion inhibiter 2%, metal ion stabilizing agents 3%, the water 77% of ammonium 8:7 in mass ratio.The corrosion inhibiter is oil
Imidazole acid quinoline, 16 mercaptan, the hexadecylpyridinium chloride composition of 3:1:1 in mass ratio.The metal ion stabilizing agents are
The composition of four sodium of disodium ethylene diamine tetraacetate, aminotrimethylenephosphonic acid and glutamic acid diacetic acid of equal mass ratioes.Penetration-assisting agent is
Ethylene glycol monobutyl ether and the gaultherolin composition of 3:2 in mass ratio.System stabilizers be sorbitan fatty acid ester and
The polypropylene glycol composition of 3:1 in mass ratio.
The preparation method of the above-mentioned non-acid deblocking agent for heavy oil wells, includes the following steps:
S1, each component of inorganic blockages relieving fluid is mixed by usage ratio, medicament addition sequence is required without successive, is stirred molten
Solution, obtains inorganic blockages relieving fluid；
In S2, Xiang Wuji blockages relieving fluid be added system stabilizers stirring and dissolving, then be added penetration-assisting agent stir evenly, finally plus
Enter viscous crude dispersing agent, be dispersed with stirring to form uniform shape lotion, is as used for the non-acid deblocking agent of heavy oil wells.
Compared with prior art, the invention has the beneficial effects that:
The non-acid deblocking agent of heavy oil wells provided by the invention can effectively release the blocking injury of heavy oil wells near wellbore zone, improve
The storey increase design effect of heavy oil wells；Than the performance that conventional acidulation de-plugging has Low Damage, low corrosion, when avoiding acid de-plugging pair
The burn into of pipeline reduces the engineer operation of acid processing；Inorganic, organic injury can be released simultaneously, than single component de-plugging agent more
Meet the production actual demand in oil field, have the function of more effective de-plugging and extends de-plugging validity period；By a variety of of heavy oil wells
Injury carries out comprehensive de-plugging, and multiple operation is assembled single operation and thereby simplifies the de-plugging process measure of heavy oil wells, subtract
Lack construction times, reduces the cost repeatedly constructed while improving plugging removal effect；The maximum progress of de-plugging agent of the invention
It is that de-plugging returns drain and do not have to carry out emission treatment, production procedure can be directly entered, realize the environmental protection construction of zero-emission.
Further advantage, target and feature of the invention will partially illustrate to embody by the following specific embodiments, and part is also
It will be understood by the person skilled in the art and to research and practice of the invention.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described, it should be understood that preferred embodiment described herein is only used
In the description and interpretation present invention, it is not intended to limit the present invention.
Embodiment 1
From certain heavy oil wells of certain oil field B obtain pit shaft, the blocked sample of joint carries out de-plugging experimental analysis, step is such as
Under:
Step 1: preparing the non-acid deblocking agent 100g for heavy oil wells of the invention
The group of non-acid deblocking agent of the invention becomes (mass percent): the inorganic blockages relieving fluid of 35% viscous crude dispersing agent+60%+
+ 1% system stabilizers of 4% penetration-assisting agent.Firstly, non-acid inorganic blockages relieving fluid 60g is prepared, concrete composition: the siliceous salt of corrosion
Give birth to acid agent 12%+ corrosion inhibiter 1%+ metal ion stabilizing agents 3%+ water 80% in the underground 4%+.Water 48ml is measured to be added in beaker,
Then 2.4g fluoboric acid amine, polyformaldehyde 3.6g, ammonium chloride 3.6g, oleic imidazolinone 0.4g, thiocarbamide are successively added into beaker
0.1g, butynediols 0.1g, disodium ethylene diamine tetraacetate 0.6g, 1-hydroxy ethylidene-1,1-diphosphonic acid 0.6g, citric acid 0.6g, stirring are equal
It is even, obtain non-acid inorganic blockages relieving fluid；Then, system stabilizers fatty alcohol polyoxyethylene ether is added in Xiang Wuji blockages relieving fluid
0.5g, polyethylene glycol 0.5g, stir evenly；Penetration-assisting agent gaultherolin 2g, dimethyl sulfoxide 2g are continuously added, is stirred evenly；Most
Afterwards, viscous crude dispersing agent naphthane 20g, dimethylbenzene 10g, kerosene 5g are continuously added, is stirred evenly, is completely dispersed to be formed to system
Even shape lotion is to get the non-acid deblocking agent arrived for heavy oil wells.
Step 2: 100g viscous crude dispersant A, the non-acid inorganic de-blocking agent A of 100g test specimen as a comparison are selected.Viscous crude point
Powder A is made of 57.14g naphthane, 28.57g dimethylbenzene, the mixing of 14.29g kerosene.Non-acid inorganic de-blocking agent A is by following component
It is mixed: 80ml water, 4g fluoboric acid amine, polyformaldehyde 6g, ammonium chloride 6g, oleic imidazolinone 0.66g, thiocarbamide 0.17g, butine two
Alcohol 0.17g, disodium ethylene diamine tetraacetate 1g, 1-hydroxy ethylidene-1,1-diphosphonic acid 1g, citric acid 1g.
Step 3: the heavy oil wells blocked sample of 3 parts of 10g, respectively 1#, 2#, 3# are weighed；It prepared by 100g step 1 non-
Acid deblocking agent, 100g viscous crude dispersant A, the non-acid inorganic de-blocking agent A of 100g are added separately to heavy oil wells blocked sample 1#, 2#, 3#
In, 60 DEG C of water-bath 2h, filtering weighing calculates corrosion rate, and experimental result is shown in Table 1.As can be seen that non-acid deblocking agent pair of the invention
Heavy oil wells blocked sample has very high releasing blocking ability, and 2#, 3# experiment can be understood as conventional Heavy Oil well de-plugging operation
Organic plugging remove measures, it is inorganic blocking remove measures, the sum of dissolution rate of both 2#, 3# independent role is all than 1# de-plugging
Agent one-stop operation effect is poor.This illustrates that non-acid de-plugging system utilizes the synergy of inorganic, organic de-plugging, while reducing construction
Operations number.
The dissolution experiment result of table 1, heavy oil wells blocked sample
| Sample | 1# (non-acid deblocking agent) | 2# (viscous crude dispersant A) | 3# (non-acid inorganic de-blocking agent A) |
| Dissolution rate | 93.6% | 58.7% | 11.5% |
Step 4: residue sample is put into beaker after step 3 is tested, and the viscous crude sample 100ml of oil field B, 60 DEG C of water are added
After bath is placed 10 days, takes out residue sample size and take diameter, the sample diameter about 4.2mm cleaned by non-acid deblocking agent, viscous crude
The sample diameter that dispersant A cleaned about 8.3mm, the sample diameter about 21.9mm that non-acid inorganic de-blocking agent A was cleaned.This explanation
De-plugging of well validity period after the non-acid deblocking agent de-plugging of heavy oil wells of the invention is long, this is because comprehensive de-plugging agent of the invention
Reduce the nucleus of blocked sample crystallization.
Embodiment 2
From certain heavy oil wells of certain oil field B obtain pit shaft, the blocked sample of joint carries out de-plugging experimental analysis, experimental procedure
It is as follows:
Step 1: preparing the non-acid deblocking agent 100g for heavy oil wells of the invention
The composition of non-acid deblocking agent for heavy oil wells of the invention are as follows: the inorganic blockages relieving fluid of 43% viscous crude dispersing agent+50%+
+ 2% system stabilizers of 5% penetration-assisting agent.Firstly, preparing non-acid inorganic blockages relieving fluid 50g, the composition of inorganic blockages relieving fluid are as follows: molten
The raw acid agent 15%+ corrosion inhibiter 2%+ metal ion stabilizing agents 3%+ water 77% in the siliceous underground salt 3%+ is lost, water 38.5ml is measured
It is added in beaker, 1.5g amine fluoride, formaldehyde 4g, ammonium chloride 3.5g, oleic imidazolinone 0.6g, ten is then successively added into beaker
Six mercaptan 0.2g, hexadecylpyridinium chloride 0.2g, disodium ethylene diamine tetraacetate 0.5g, aminotrimethylenephosphonic acid 0.5g, paddy ammonia
Sour four sodium 0.5g of oxalic acid, stirs evenly, obtains non-acid inorganic blockages relieving fluid；Then, system is added in Xiang Wuji blockages relieving fluid
Stabilizer sorbitan fatty acid ester 1.5g, polypropylene glycol 0.5g, stir evenly；Continuously add penetration-assisting agent ethylene glycol monobutyl ether
3g, gaultherolin 2g, stir evenly, finally, viscous crude dispersing agent naphthane 20g, kerosene 20g, butyl benzene 3g is added, stirring is equal
It is even, it is completely dispersed to form uniform shape lotion to get the non-acid deblocking agent for heavy oil wells of the invention is arrived to system.
Step 2: 100g viscous crude dispersant B, the non-acid inorganic de-blocking agent B of 100g test specimen as a comparison are selected.Viscous crude point
Powder B is mixed by 46.5g naphthane, 46.5g kerosene, 7g butyl benzene.Non-acid inorganic de-blocking agent B is made of following component:
77ml water, 3g amine fluoride, formaldehyde 8g, ammonium chloride 7g, oleic imidazolinone 1.2g, 16 mercaptan 0.4g, hexadecylpyridinium chloride
0.4g, disodium ethylene diamine tetraacetate 1g, aminotrimethylenephosphonic acid 1g, four sodium 1g of glutamic acid diacetic acid.Each component is mixed, is stirred
Uniformly to get non-acid inorganic de-blocking agent B.
Step 3: the heavy oil wells blocked sample of 3 parts of 10g, respectively 4#, 5#, 6# are weighed.It prepared by 100g step 1 non-
Acid deblocking agent, 100g viscous crude dispersant B, the non-acid inorganic de-blocking agent B of 100g are added separately to heavy oil wells blocked sample 4#, 5#, 6#
In, 60 DEG C of water-bath 2h, filtering weighing calculates corrosion rate, and experimental result is shown in Table 2.As can be seen that non-acid deblocking agent pair of the invention
Heavy oil wells blocked sample has very high releasing blocking ability, and 5#, 6# experiment can be understood as conventional Heavy Oil well de-plugging operation
Organic plugging remove measures, it is inorganic blocking remove measures, the sum of dissolution rate of both 5#, 6# independent role is all than 4# de-plugging
Agent one-stop operation effect is poor.This illustrates that non-acid de-plugging system utilizes the synergy of inorganic, organic de-plugging, while reducing construction
Operations number.
The dissolution experiment result of table 2, heavy oil wells blocked sample
| Sample | 4# (non-acid deblocking agent) | 5# (viscous crude dispersant B) | 6# (non-acid inorganic de-blocking agent B) |
| Dissolution rate | 93.1% | 56.2% | 9.8% |
Step 4: residue sample is put into beaker after step 3 is tested, and the viscous crude sample 100ml of oil field B, 60 DEG C of water are added
After bath is placed 10 days, takes out residue sample size and take diameter, the sample diameter about 4.6mm that non-acid deblocking agent of the invention cleaned,
The sample diameter that viscous crude dispersant B cleaned about 9.6mm, the sample diameter about 23.1mm that non-acid inorganic de-blocking agent B was cleaned.This
De-plugging of well validity period after illustrating the non-acid de-plugging system de-plugging of heavy oil wells is long, this is because de-plugging agent of the invention reduce it is stifled
Fill in the nucleus of sample crystallization.
In conclusion demonstrating non-acid deblocking agent of the invention for heavy oil wells with comprehensive by two embodiments
Plugging function is solved, not only simplifies construction technology, while de-plugging validity period can be extended.There is Low Damage, low than conventional acidulation de-plugging
The performance of corrosion avoids the engineer operation for reducing acid processing when acid de-plugging to the burn into of pipeline.Most of all, this hair
Bright de-plugging agent de-plugging returns drain and does not have to carry out emission treatment, can be directly entered production procedure, the environmental protection for realizing zero-emission is applied
Work.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
For the equivalent embodiment of equivalent variations, but anything that does not depart from the technical scheme of the invention content, according to the technical essence of the invention
Any simple modification, equivalent change and modification to the above embodiments, all of which are still within the scope of the technical scheme of the invention.
Claims (9)
1. a kind of non-acid deblocking agent for heavy oil wells, which is characterized in that the component including following mass percent: viscous crude dispersion
Agent 30-60%, inorganic blockages relieving fluid 35-65%, penetration-assisting agent 2-5%, system stabilizers 1-2%；
The inorganic blockages relieving fluid consists of the following components in percentage by mass: the siliceous salt 0.5-6% of corrosion, the raw sour agent 6- in underground
30%, corrosion inhibiter 0.5-2%, metal ion stabilizing agents 1-3%, remaining is water；The siliceous salt of corrosion is ammonium fluoride, fluoboric acid
One of amine, hydrogen fluoride amine or at least two mixture, the raw sour agent in underground is made of formaldehyde and ammonium chloride or polyformaldehyde
It is formed with ammonium chloride.
2. as described in claim 1 be used for heavy oil wells non-acid deblocking agent, which is characterized in that the corrosion inhibiter be tallow amine,
Cetylamine, octadecylamine, methenamine, oleic imidazolinone, lauryl imidazoline, thiocarbamide, o-xylene thiourea, 12 sulphur
One of alcohol, 16 mercaptan, pyridinium chloride hexadecyldimethyl benzyl ammonium, hexadecylpyridinium chloride, butynediols, propilolic alcohol or at least two
Kind.
3. being used for the non-acid deblocking agent of heavy oil wells as claimed in claim 2, which is characterized in that the metal ion stabilizing agents are
Disodium ethylene diamine tetraacetate, nitrilotriacetic acid, citric acid, four sodium of glutamic acid diacetic acid, 1-hydroxy ethylidene-1,1-diphosphonic acid, three methene of amino
Phosphonic acids, ethylene diamine tetra methylene phosphonic acid, 2- hydroxyphosphonoacetic acid, oneself two press four methylenephosphonic acids one kind or at least two.
4. being used for the non-acid deblocking agent of heavy oil wells as described in claim 1, which is characterized in that the viscous crude dispersing agent is bavin
Oil, kerosene, gasoline, naphtha, pentane, n-hexane, n -nonane, pentamethylene, hexamethylene, hexahydrotoluene, benzene, toluene, second
Benzene, paraxylene, meta-xylene, butyl benzene, octyl benzene, ortho-xylene, n-proplbenzene, p-methyl-ethylbenzene, trimethylbenzene, indenes, first indenes,
Tetrahydrofuran, 1,4-benzoquinone, methylnaphthohydroquinone, tetrachloroquinone, phenthazine, lutidines, naphthane one of which or at least two
Double solvents.
5. being used for the non-acid deblocking agent of heavy oil wells as claimed in claim 4, which is characterized in that the penetration-assisting agent is salicylic acid first
Ester, repefral, methyl tosylate, dimethyl carbonate, octyl acetate, ethyl propionate and methyl butyrate, amber
Amber acid esters sodium sulfonate, amyl ether, ethylene glycol monobutyl ether, p-hydroxyanisole, acetone, cyclohexanone and acetophenone, dimethyl sulfoxide one
Kind or at least two.
6. being used for the non-acid deblocking agent of heavy oil wells as claimed in claim 5, which is characterized in that the system stabilizers are polyoxies
Ethylene castor oil, fatty alcohol polyoxyethylene ether, polyoxyethylene aliphatic alcohol ether, sorbitan fatty acid ester, polysorbate, gather it is sweet
Oil and fat acid esters, sucrose fatty ester, polyethylene glycol, polypropylene glycol, polytetramethylene glycol are one such or at least two.
7. being used for the non-acid deblocking agent of heavy oil wells as described in claim 1, which is characterized in that each component mass percent is such as
Under: viscous crude dispersing agent 35%, inorganic blockages relieving fluid 60%, penetration-assisting agent 4%, system stabilizers 1%；
Wherein, viscous crude dispersing agent is the double solvents that naphthane, dimethylbenzene and kerosene 4:2:1 in mass ratio are mixed；
The composition of inorganic blockages relieving fluid is as follows: the composition 12% of the mass ratioes such as fluoboric acid amine 4%, polyformaldehyde and ammonium chloride, inhibition
Agent 1%, metal ion stabilizing agents 3%, water 80%, the corrosion inhibiter are oleic imidazolinone, thiocarbamide, butynediols in mass ratio 4:
The composition of 1:1, the metal ion stabilizing agents are disodium ethylene diamine tetraacetate, 1-hydroxy ethylidene-1,1-diphosphonic acid, citric acid by quality
Composition than 1:1:1；
Penetration-assisting agent is made of the gaultherolin and dimethyl sulfoxide of equal mass ratioes；
System stabilizers are made of the fatty alcohol polyoxyethylene ether and polyethylene glycol of equal mass ratioes.
8. being used for the non-acid deblocking agent of heavy oil wells as described in claim 1, which is characterized in that each component mass percent is such as
Under: viscous crude dispersing agent 43%, inorganic blockages relieving fluid 50%, penetration-assisting agent 5%, system stabilizers 2%；
Wherein, viscous crude dispersing agent is the double solvents that naphthane, kerosene and butyl benzene 20:20:3 in mass ratio are mixed；
The composition of inorganic blockages relieving fluid is as follows: composition 15%, the corrosion inhibiter of amine fluoride 3%, formaldehyde and ammonium chloride 8:7 in mass ratio
2%, metal ion stabilizing agents 3%, water 77%, the corrosion inhibiter are oleic imidazolinone, 16 mercaptan, hexadecylpyridinium chloride
The composition of 3:1:1 in mass ratio, the metal ion stabilizing agents are disodium ethylene diamine tetraacetate, the amino front three of equal mass ratioes
Pitch the composition of phosphonic acids and four sodium of glutamic acid diacetic acid；
Penetration-assisting agent is ethylene glycol monobutyl ether and the gaultherolin composition of 3:2 in mass ratio；
System stabilizers are sorbitan fatty acid ester and the polypropylene glycol composition of 3:1 in mass ratio.
9. a kind of preparation method of the non-acid deblocking agent for heavy oil wells as described in claim 1-8 any one, feature
It is, includes the following steps:
S1, each component of inorganic blockages relieving fluid is mixed by usage ratio, stirring and dissolving obtains inorganic blockages relieving fluid；
System stabilizers stirring and dissolving is added in S2, Xiang Wuji blockages relieving fluid, penetration-assisting agent is then added and stirs evenly, is eventually adding thick
Oil dispersant is dispersed with stirring to form uniform shape lotion, is as used for the non-acid deblocking agent of heavy oil wells.
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| CN201910375872.9A CN110129018A (en) | 2019-05-07 | 2019-05-07 | A kind of non-acid deblocking agent and preparation method thereof for heavy oil wells |
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| CN201910375872.9A CN110129018A (en) | 2019-05-07 | 2019-05-07 | A kind of non-acid deblocking agent and preparation method thereof for heavy oil wells |
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| CN110564395A (en) * | 2019-09-30 | 2019-12-13 | 新疆准东准盈技术有限责任公司 | preparation method of blocking remover for oil extraction |
| CN110746953A (en) * | 2019-11-07 | 2020-02-04 | 西安石油大学 | Viscosity-reducing and asphalt-stabilizing agent for thickened oil and preparation method thereof |
| CN111205840A (en) * | 2020-02-28 | 2020-05-29 | 东莞理工学院 | Blocking remover based on deep eutectic solvent and preparation method thereof |
| CN112778991A (en) * | 2021-01-08 | 2021-05-11 | 中国石油天然气集团公司 | Biological enzyme composite blocking remover and preparation method thereof |
| CN112877046A (en) * | 2021-01-18 | 2021-06-01 | 中国石油化工股份有限公司 | Deep thickened oil blocking remover for oil well as preparation method and use method thereof |
| CN112961660A (en) * | 2020-12-17 | 2021-06-15 | 北京峦海阜程科技发展有限责任公司 | Flowback-free fine blocking remover and preparation method thereof |
| CN113444507A (en) * | 2021-06-11 | 2021-09-28 | 山东海嘉石油化工有限公司 | Non-acidic thick oil viscosity-reducing blocking remover and preparation method thereof |
| CN114958324A (en) * | 2021-02-24 | 2022-08-30 | 中国石油天然气集团有限公司 | Neutral anti-blocking blockage-removing and production-resuming working solution for old well of low-permeability gas field and preparation method thereof |
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| CN110564395A (en) * | 2019-09-30 | 2019-12-13 | 新疆准东准盈技术有限责任公司 | preparation method of blocking remover for oil extraction |
| CN110746953A (en) * | 2019-11-07 | 2020-02-04 | 西安石油大学 | Viscosity-reducing and asphalt-stabilizing agent for thickened oil and preparation method thereof |
| CN110746953B (en) * | 2019-11-07 | 2022-05-10 | 西安石油大学 | Viscosity-reducing and asphalt-stabilizing agent for thickened oil and preparation method thereof |
| CN111205840A (en) * | 2020-02-28 | 2020-05-29 | 东莞理工学院 | Blocking remover based on deep eutectic solvent and preparation method thereof |
| CN112961660A (en) * | 2020-12-17 | 2021-06-15 | 北京峦海阜程科技发展有限责任公司 | Flowback-free fine blocking remover and preparation method thereof |
| CN112961660B (en) * | 2020-12-17 | 2022-09-13 | 北京峦海阜程科技发展有限责任公司 | Flowback-free fine blocking remover and preparation method thereof |
| CN112778991A (en) * | 2021-01-08 | 2021-05-11 | 中国石油天然气集团公司 | Biological enzyme composite blocking remover and preparation method thereof |
| CN112778991B (en) * | 2021-01-08 | 2022-12-06 | 中国石油天然气集团公司 | Biological enzyme composite blocking remover and preparation method thereof |
| CN112877046A (en) * | 2021-01-18 | 2021-06-01 | 中国石油化工股份有限公司 | Deep thickened oil blocking remover for oil well as preparation method and use method thereof |
| CN112877046B (en) * | 2021-01-18 | 2024-01-05 | 中国石油化工股份有限公司 | Deep thickened oil blocking remover for oil well and preparation method and application method thereof |
| CN114958324A (en) * | 2021-02-24 | 2022-08-30 | 中国石油天然气集团有限公司 | Neutral anti-blocking blockage-removing and production-resuming working solution for old well of low-permeability gas field and preparation method thereof |
| CN113444507A (en) * | 2021-06-11 | 2021-09-28 | 山东海嘉石油化工有限公司 | Non-acidic thick oil viscosity-reducing blocking remover and preparation method thereof |
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