CN109575894A - A kind of oilfield chemistry oil recovery neutral de-plugging agent and preparation method thereof - Google Patents
A kind of oilfield chemistry oil recovery neutral de-plugging agent and preparation method thereof Download PDFInfo
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Abstract
The present invention relates to technical field of tertiary oil recovery, and in particular to recovers the oil to a kind of oilfield chemistry with neutral de-plugging agent and preparation method thereof.The oilfield chemistry, which recovers the oil, uses neutral de-plugging agent, by weight, including following component: surfactant, metal ion chelation agent, polybasic carboxylic acid ammonium salt, nitrogenous compound, fungicide, dispersing agent, water.Oilfield chemistry oil recovery neutral de-plugging agent provided by the present invention is compared to traditional pickling de-plugging, biological plugging releasing and solvent, product of the present invention is more safe and reliable, it is environmentally protective, completely eliminate etching problem caused by corrosion inhibiter failure when being blocked up with acidolysis, also evaded that solvent is inflammable, explosive, toxic and biotechnology is difficult to the risk controlled, for guaranteeing to keep the safety in production, long period oil recovery important in inhibiting.
Description
Technical field
The invention belongs to technical field of tertiary oil recovery, more particularly it relates to which a kind of oilfield chemistry recovers the oil with neutral
De-plugging agent and preparation method thereof.
Background technique
As national most of oil field enters high water cut viscous heavy crude oil, tertiary oil recovery technology just in large-scale promotion application,
After Daqing oil field, Shengli Oil Field, Dagang Oilfield, the oil fields such as Henan, the Liaohe River, Xinjiang have all successively carried out Pilot trial,
And achieve success.Wherein, ASP Oil-Displacing Technology is widely applied at the scene of recovering the oil.
Ternary composite oil-displacing is by the way that a certain amount of surfactant, alkali and opposite macromolecule are added in injection water
Polymer, to improve the technology of oil displacement efficiency and oil recovery factor, wherein polymer in the earth formation mainly with dissolution, absorption and
The mode of trapping exists, and with the increase of polymer injected slurry volume, polymer in injection wells problem becomes increasingly conspicuous, and is mainly shown as that note is poly-
The injection pressure of well is high, it is difficult to complete injection allocation according to the proportion, or even stop infusing, seriously affect polymer flooding exploitation effect, constrain
The application of technique of polymer flooding.
In view of the above-mentioned problems, the reason of by rising to poly- drive injection well injection pressure, is analyzed, and to polymer in injection wells
The research of rule takes chemical plugging removal and the method for common hydraulic fracturing to alleviate the blockage problem of injection well more, although both
Method can alleviate the contradiction that polymer note is not entered with injection pressure rising to a certain extent, but still have augmented injection amount
It is low, the technical problems such as validity period is short.
Currently, people use de-plugging agent to reduce the blocking of injection well, but it is used to release the de-plugging of polymer contaminants
The preparation method of agent mainly by different type strong oxidizer (such as hydrogen peroxide, Peracetic acid, potassium permanganate) according to a certain percentage
After compounding, it is configured to acidic aqueous solution, then directly applies to de-plugging scene.However, such de-plugging agent is all strong oxygen
The property changed, and oxidizing solution is very unstable, it is not easy to store and to be stored too long with canister, forbid sunlight direct
According to.Therefore, there is very big security risk in application process at the scene, but also that there are reaction speeds is too fast, useful effect away from
From short, at high cost, cost performance is low, it is difficult to the problems such as realizing removing clog in deep reservoir.
Therefore, find a kind of de-plugging function admirable, stability it is good for releasing the de-plugging agent of polymer contaminants, be to mention
High oilfield exploitation effect problem in the urgent need to address.
Summary of the invention
To solve the above-mentioned problems, the first aspect of the invention provides a kind of neutral de-plugging of oilfield chemistry oil recovery
Agent, by weight, including following component: surfactant, metal ion chelation agent, polybasic carboxylic acid ammonium salt, nitrogenous compound,
Fungicide, dispersing agent, water.
Including following component as a kind of perferred technical scheme, by weight: 2-6 parts of surfactant, metal from
Sub- chelating agent 1-3 parts, 2-4 parts of polybasic carboxylic acid ammonium salt, 1-3 parts of nitrogenous compound, 1-2 parts of fungicide, 0.5-1.5 parts of dispersing agent,
60-90 parts of water.
As a kind of perferred technical scheme, the surfactant includes Polyoxyethylene Ether Nonionic Surfactant
And anionic fluorinated surfactant.
As a kind of perferred technical scheme, the Polyoxyethylene Ether Nonionic Surfactant is polyoxyethylene nonyl phenyl second
Alkene ether.
As a kind of perferred technical scheme, the anionic fluorinated surfactant is perfluoropolyether carboxylic acid ammonium.
As a kind of perferred technical scheme, the polybasic carboxylic acid ammonium salt is selected from hydrogen citrate amine, citric acid hydrogen diamine, second
One of ethylenediamine tetraacetic acid (EDTA) is a variety of.
As a kind of perferred technical scheme, the nitrogenous compound is the ammoniac compounds of the structure containing-NH.
As a kind of perferred technical scheme, the ammoniac compounds of the structure Han-NH are selected from azole, guanidine, imines
One of or it is a variety of.
As a kind of perferred technical scheme, the oilfield chemistry oil recovery neutral de-plugging agent further includes ionic liquid.
The second aspect of the invention provides a kind of preparation method of oilfield chemistry oil recovery neutral de-plugging agent, step packet
It includes: under 10-50 DEG C and condition of normal pressure, sequentially adding surfactant, metal ion chelation agent, more in proportion into agitator tank
First ammonium carboxylate salt, nitrogenous compound, fungicide, dispersing agent, ionic liquid and water arrive the oil field after stirring 1-4 hours
Chemical recovery neutral de-plugging agent.
The utility model has the advantages that oilfield chemistry oil recovery provided by the present invention has excellent rate of corrosion, scale removal with neutral de-plugging agent
Rate and clean rate.Product of the present invention is for the purpose of de-plugging dredging pore constriction recovery reservoir permeability, by the carbonic acid in reservoir
The acid-soluble non-shale blocking substance such as salt, silicates, metal oxide is removed, for using tri compound in oil recovery process
It drives the divalent petroleum sulfonate precipitating dirt generated in recovering the oil and polyacrylamide polymers material dirt and iron oxide precipitating dirt is same
It can effectively remove.In addition, reservoir skeleton is not injured, and under the action of fungicide using product of the present invention, it is useless after de-plugging
Liquid is handled without the row of returning, can turn on pump oil recovery after de-plugging.Compared to traditional pickling de-plugging, biological plugging releasing and solvent, the present invention
Product is more safe and reliable, environmentally protective, completely eliminates etching problem caused by corrosion inhibiter failure when being blocked up with acidolysis, also evades
Solvent is inflammable, explosive, toxic and biotechnology is difficult to the risk controlled, and for guaranteeing to keep the safety in production, long period oil recovery has
Significance.
Specific embodiment
It is further clear, complete that the technical characteristic work in technical solution is provided to the present invention With reference to embodiment
Description, not to the limitation of its protection scope.
Word " preferred ", " preferred " in the present invention etc. refer to, can provide in some cases certain beneficial to effect
The embodiment of the present invention of fruit.However, other embodiments are also likely to be preferred under identical circumstances or in the case of other
's.In addition, do not imply that other embodiments are unavailable to the statement of one or more preferred embodiments, be also not intended to by
Other embodiments exclude except the scope of the present invention.
When a numberical range disclosed herein, above range is considered as continuously, and the minimum value including the range and most
Big value and each value between this minimum value and maximum value.Further, when range refers to integer, including the model
Each integer between minimum value and maximum value enclosed.In addition, when providing multiple range Expressive Features or characteristic, Ke Yihe
And the range.In other words, unless otherwise specified, otherwise all ranges disclosed herein are understood to include and are wherein included into
Any and all subrange.For example, should be regarded as including between minimum value 1 and maximum value 10 from the specified range of " 1 to 10 "
Any and all subrange.The Exemplary range of range 1 to 10 include but is not limited to 1 to 6.1,3.5 to 7.8,5.5 to
10 etc..
To solve the above-mentioned problems, the first aspect of the invention provides a kind of neutral de-plugging of oilfield chemistry oil recovery
Agent, by weight, including following component: surfactant, metal ion chelation agent, polybasic carboxylic acid ammonium salt, nitrogenous compound,
Fungicide, dispersing agent, water.
Including following component in a preferred embodiment, by weight: 2-6 parts of surfactant, metal from
Sub- chelating agent 1-3 parts, 2-4 parts of polybasic carboxylic acid ammonium salt, 1-3 parts of nitrogenous compound, 1-2 parts of fungicide, 0.5-1.5 parts of dispersing agent,
60-90 parts of water.
Surfactant
Surfactant of the present invention refers to that the interface state that can make its solution system on a small quantity, which is added, occurs significant change
Substance.With fixed hydrophilic lipophilic group, can be aligned on the surface of solution.The molecular structure of surfactant has
Amphipathic: one end is hydrophilic radical, and the other end is hydrophobic grouping；Hydrophilic radical is often polar group, as carboxylic acid, sulfonic acid, sulfuric acid,
Amino or amido and its salt, hydroxyl, amide groups, ehter bond etc. also can be used as polar hydrophilic group；And hydrophobic grouping is often nonpolarity
Hydrocarbon chain, such as 8 above hydrocarbon chains of carbon atom.
In a preferred embodiment, surfactant of the present invention includes Polyoxyethylene Ether non-ionic surface
Activating agent and anionic fluorinated surfactant.
In a preferred embodiment, Polyoxyethylene Ether Nonionic Surfactant of the present invention is nonyl phenol
Polyoxyethylene ether.
In a preferred embodiment, the ethylene oxide number of nonylphenol polyoxyethylene ether of the present invention is 6-15.
In a preferred embodiment, nonylphenol polyoxyethylene ether purchase of the present invention has from the outstanding chemical industry in Zibo sea
Limit company, trade mark TX-10；Other preferably further include TX-9, the product of TX-15.
In a preferred embodiment, anionic fluorinated surfactant of the present invention is perfluoropolyether carboxylic acid ammonium.
In a preferred embodiment, environmental protective chemical industry is changed in perfluoropolyether carboxylic acid ammonium purchase of the present invention from granary
Co., Ltd.
In a preferred embodiment, surfactant of the present invention is that nonylphenol polyoxyethylene ether and perfluor are poly-
Ether carboxylic acid ammonium obtains according to weight ratio for 1:(1-1.5) compounding.
Inventor has found the scale removal that can improve de-plugging agent in formula using nonylphenol polyoxyethylene ether in the course of the study
Rate and clean rate, but effect is unobvious when its single use, therefore inventor compounds perfluoropolyether carboxylic acid ammonium therewith, and works as
Nonylphenol polyoxyethylene ether and perfluoropolyether carboxylic acid ammonium are 1:(1-1.5 according to weight ratio) when, find the descaling rate energy of de-plugging agent
It significantly improves, the possible reason is further being used using nonylphenol polyoxyethylene ether to the osmosis of greasy dirt in tamper
Perfluoropolyether carboxylic acid ammonium plays the role of removing to polymer and cracks, to effectively release blocking, renwing stratum permeability.
Metal ion chelation agent
Metal-chelator of the present invention can by the strong combination of chelator molecule and metal ion, by metal from
Attached bag is closed to inside chelating agent, becomes stable, the bigger compound of molecular weight, can be with so that metal ion be prevented to work
For detoxifying, printing and dyeing, scale inhibition etc..
In some embodiments, metal ion chelation agent of the present invention is selected from aminotrimethylenephosphonic acid, hydroxy ethylidene
One of di 2 ethylhexyl phosphonic acid, EDTA, Tryfac 5573 triethanolamine are a variety of.
In a preferred embodiment, metal ion chelation agent of the present invention is aminotrimethylenephosphonic acid, purchase
From Changzhou Run Yang Chemical Co., Ltd., trade mark GY-308.
Polybasic carboxylic acid ammonium salt
Polybasic carboxylic acid ammonium salt of the present invention refers to that polyacid reacts the polybasic carboxylic acid ammonium salt to be formed with ammonia.It is wherein described more
What first acid can be enumerated has lactic acid, tartaric acid, citric acid etc..
In a preferred embodiment, polybasic carboxylic acid ammonium salt of the present invention is selected from hydrogen citrate amine, hydrogen citrate
One of diamines, ethylenediamine tetra-acetic acid are a variety of.
In a preferred embodiment, polybasic carboxylic acid ammonium salt of the present invention is ammonium dihydrogen citrate, is bought from upper
Voyage source goods and materials Co., Ltd.
Inventor find use polybasic carboxylic acid ammonium salt of the present invention, can with deposited in oil reservoir, oil well petroleum pipeline
The reaction of sulfide dirt, solubility calcium, magnesium salts etc. are generated, while making its surface with negative electrical charge, so that between metal salt no longer
Assemble, thus by leaching.
Nitrogenous compound
Nitrogenous compound of the present invention is the ammoniac compounds of the structure containing-NH, wherein the nitrogenous compound is selected from azoles
Class, guanidine, one of imines or a variety of.
In a preferred embodiment, nitrogenous compound of the present invention is selected from 1,2,4 triazoles, three nitrogen of phenylpropyl alcohol
One of azoles, 5- aminotetrazole, hydrochloric acid biguanides, polyimide, 3- aminotetrazole, polyimide are a variety of.
In a preferred embodiment, nitrogenous compound of the present invention is phenylpropyl triazole, and purchase is foreign from Germany
Cherry group.
Inventor has found that the hetero atom that phenylpropyl triazole is contained due to its own and aromatic ring are adsorbed on metal surface, can have
Effect reduces rate of corrosion, but its water solubility is poor, therefore mutually cooperates with remaining component, so that rate of corrosion decreases.
Fungicide
Fungicide of the present invention is also known as biocide, Biocidal algae-killing agent, microbicide etc., typically refers to effectively to control
The chemicals of system or microorganism-bacterium, fungi and algae in kill water system.
In some embodiments, fungicide of the present invention is selected from sodium hypochlorite, postassium hypochlorite, calcium hypochlorite, dichloro
Isocyanuric acid, sym-closene, chlorine dioxide, bromine, sodium hypobromite, potassium hypobromite, hypobromous acid calcium, quaternary ammonium salt, quaternary alkylphosphonium salt,
One of cinnamic acid is a variety of.
In a preferred embodiment, fungicide of the present invention is myristyl benzyl dimethyl ammonium chloride and meat
Cinnamic aldehyde is obtained according to weight ratio for 1:(0.4-0.8) compounding；Wherein the myristyl benzyl dimethyl ammonium chloride and cinnamic acid
It is purchased from Shanghai Mike's woods biochemical technology Co., Ltd.
Inventor has found that aerobic bacterium does not generate degradation to polymer solution, can cause to block up during polymer flooding
Plug, it is therefore necessary to a certain amount of fungicide be added, alleviate blocking caused by bacterium.Inventor has found using of the present invention
Fungicide can not only improve scale inhibition performance, clean rate, and rate of corrosion can also be made to decrease, and inventor speculates possible reason
It is that on the one hand the fungicide can interact with ionic liquid promotes it in metal watch using fungicide of the present invention
The chemisorption in face；On the other hand, with phenylpropyl triazole and dispersing agent interaction can further such that adsorption film more
Add securely.
Dispersing agent
Dispersing agent of the present invention is that material particles is promoted to be dispersed in medium, forms the medicament of stable suspension.
Dispersing agent is generally divided into inorganic dispersant and organic dispersing agent two major classes.Common inorganic dispersant has silicates (such as water
Glass) and alkali metal phosphate class (such as sodium tripolyphosphate, calgon and sodium pyrophosphate etc.).
In a preferred embodiment, dispersing agent of the present invention is selected from triethyl group hexyl phosphoric acid, dodecyl sulphur
Sour sodium, methyl anyl alcohol, cellulose derivative, polyacrylamide, guar gum, fatty acid polyethylene glycol ester, one in amido silicon oil
Kind is a variety of.
In a preferred embodiment, dispersing agent of the present invention is amido silicon oil, is bought organic from SHIN-ETSU HANTOTAI's chemistry
Silicon Co., Ltd, trade mark KF-864.
Inventor has found that the dispersing agent is added in formula have apparent modified dispersion and reduce viscosity effect, and energy
So that descaling rate and clean rate significantly improve, the possible reason is it can send out between the pitch dirt and polymer scale of raffinate
Raw synergistic effect, while surfactant is permeated, the hydrophobic long-chain of dispersing agent and surfactant is to a large amount of pitch
Dirt and polymer scale and other organic matters attract each other, at the same the polarity end of the chain make it is mutually exclusive between dirt, therefore this two
Kind active force enables organic dirt of macromolecular that schmutzband is made gradually to remove dispersion, until dirt is leached completely.
In a preferred embodiment, oilfield chemistry oil recovery neutral de-plugging agent of the present invention further includes ionic liquid
Body.
In a preferred embodiment, by weight, neutral de-plugging agent is used in oilfield chemistry oil recovery of the present invention
It further include 0.3-1.5 parts of ionic liquids.
Ionic liquid
Ionic liquid of the present invention refers to the liquid being composed entirely of ions, and such as the KCI under high temperature, KOH is in liquid
State, they are exactly ionic liquid at this time.The substance being made of ion being in a liquid state at a temperature of room temperature or near room temperature, referred to as room
Temperature ionic liquid, room temperature molten salt, organic ion liquid etc..
In a preferred embodiment, ionic liquid of the present invention is alkyl imidazole ionic liquid.
In a preferred embodiment, alkyl imidazole ionic liquid of the present invention is 1- dodecyl -3- first
Base tetrafluoroborate is bought from upper marine origin victory Chemical Co., Ltd..
Inventor has found that ionic liquid is added in formula, acts synergistically with surfactant, show preferable inhibition
Effect, this may be to be conducive to the formation of micella due to the electrostatic attraction between them, so that inhibition efficiency be made to increase；And
Due to the suitable chain length of ionic liquid itself, micella increases, and can form close uniform chemisorption protection in metal surface
Film, so that corrosion inhibition further increases.
The second aspect of the invention provides a kind of preparation method of oilfield chemistry oil recovery neutral de-plugging agent, step packet
It includes: under 10-50 DEG C and condition of normal pressure, sequentially adding surfactant, metal ion chelation agent, more in proportion into agitator tank
First ammonium carboxylate salt, nitrogenous compound, fungicide, dispersing agent, ionic liquid and water arrive the oil field after stirring 1-4 hours
Chemical recovery neutral de-plugging agent.
The present invention is specifically described below by embodiment, in addition, if without other explanations, it is raw materials used to be all
It is commercially available.
Embodiment
Embodiment 1
Embodiment 1 provides a kind of oilfield chemistry oil recovery neutral de-plugging agent, by weight, including following component: table
2 parts of face activating agent, 1 part of metal ion chelation agent, 2 parts of polybasic carboxylic acid ammonium salt, 1 part of nitrogenous compound, 1 part of fungicide, dispersing agent
0.5 part, 0.3 part of ionic liquid, 60 parts of water.
It according to weight ratio is that 1:1 is compounded that the surfactant, which is nonylphenol polyoxyethylene ether and perfluoropolyether carboxylic acid ammonium,
It arrives；The nonylphenol polyoxyethylene ether is bought from Zibo Hai Jie Chemical Co., Ltd., trade mark TX-10；The perfluoropolyether carboxylic
Sour ammonium is bought from Taicang Zhonghua Environmental Protection Medical Co., Ltd..
The metal ion chelation agent is aminotrimethylenephosphonic acid, is bought from Changzhou Run Yang Chemical Co., Ltd., the trade mark
For GY-308.
The polybasic carboxylic acid ammonium salt is ammonium dihydrogen citrate, is bought from upper voyage source goods and materials Co., Ltd.
The nitrogenous compound is phenylpropyl triazole, is bought from Yang Ying group, Germany.
It according to weight ratio is that 1:0.4 is compounded that the fungicide, which is myristyl benzyl dimethyl ammonium chloride and cinnamic acid,
It arrives；Wherein the myristyl benzyl dimethyl ammonium chloride and cinnamic acid are purchased from the limited public affairs of Shanghai Mike's woods biochemical technology
Department.
The dispersing agent is amido silicon oil, is bought from chemistry organosilicon Co., Ltd, SHIN-ETSU HANTOTAI, trade mark KF-864.
The ionic liquid is 1- dodecyl -3- methyl imidazolium tetrafluoroborate, and purchase is limited from the prompt chemistry of upper marine origin
Company.
A kind of oilfield chemistry, which recovers the oil, uses the preparation method of neutral de-plugging agent, step include: under 40 DEG C and condition of normal pressure, to
Surfactant, metal ion chelation agent, polybasic carboxylic acid ammonium salt, nitrogenous compound, sterilization are sequentially added in agitator tank in proportion
Agent, dispersing agent, ionic liquid and water, to get to the oilfield chemistry oil recovery neutral de-plugging agent after stirring 3 hours.
Embodiment 2
Embodiment 2 provides a kind of oilfield chemistry oil recovery neutral de-plugging agent, by weight, including following component: table
6 parts of face activating agent, 3 parts of metal ion chelation agent, 4 parts of polybasic carboxylic acid ammonium salt, 3 parts of nitrogenous compound, 2 parts of fungicide, dispersing agent
1.5 parts, 1.5 parts of ionic liquid, 90 parts of water.
It is 1:1.2 compounding that the surfactant, which is nonylphenol polyoxyethylene ether and perfluoropolyether carboxylic acid ammonium according to weight ratio,
It obtains；The nonylphenol polyoxyethylene ether is bought from Zibo Hai Jie Chemical Co., Ltd., trade mark TX-10；The perfluoropolyether
Carboxylic acid ammonium buys from Taicang Zhonghua Environmental Protection Medical Co., Ltd..
The metal ion chelation agent is aminotrimethylenephosphonic acid, is bought from Changzhou Run Yang Chemical Co., Ltd., the trade mark
For GY-308.
The polybasic carboxylic acid ammonium salt is ammonium dihydrogen citrate, is bought from upper voyage source goods and materials Co., Ltd.
The nitrogenous compound is phenylpropyl triazole, is bought from Yang Ying group, Germany.
It according to weight ratio is that 1:0.8 is compounded that the fungicide, which is myristyl benzyl dimethyl ammonium chloride and cinnamic acid,
It arrives；Wherein the myristyl benzyl dimethyl ammonium chloride and cinnamic acid are purchased from the limited public affairs of Shanghai Mike's woods biochemical technology
Department.
The dispersing agent is amido silicon oil, is bought from chemistry organosilicon Co., Ltd, SHIN-ETSU HANTOTAI, trade mark KF-864.
The ionic liquid is 1- dodecyl -3- methyl imidazolium tetrafluoroborate, and purchase is limited from the prompt chemistry of upper marine origin
Company.
A kind of oilfield chemistry recovers the oil, and with neutral de-plugging agent, the preparation method is the same as that of Example 1.
Embodiment 3
Embodiment 3 provides a kind of oilfield chemistry oil recovery neutral de-plugging agent, by weight, including following component: table
3 parts of face activating agent, 1.5 parts of metal ion chelation agent, 2.5 parts of polybasic carboxylic acid ammonium salt, 1.5 parts of nitrogenous compound, fungicide 1.2
Part, 0.8 part of dispersing agent, 0.5 part of ionic liquid, 70 parts of water.
It is 1:1.5 compounding that the surfactant, which is nonylphenol polyoxyethylene ether and perfluoropolyether carboxylic acid ammonium according to weight ratio,
It obtains；The nonylphenol polyoxyethylene ether is bought from Zibo Hai Jie Chemical Co., Ltd., trade mark TX-9；The perfluoropolyether carboxylic
Sour ammonium is bought from Taicang Zhonghua Environmental Protection Medical Co., Ltd..
The metal ion chelation agent is aminotrimethylenephosphonic acid, is bought from Changzhou Run Yang Chemical Co., Ltd., the trade mark
For GY-308.
The polybasic carboxylic acid ammonium salt is ammonium dihydrogen citrate, is bought from upper voyage source goods and materials Co., Ltd.
The nitrogenous compound is phenylpropyl triazole, is bought from Yang Ying group, Germany.
It according to weight ratio is that 1:0.6 is compounded that the fungicide, which is myristyl benzyl dimethyl ammonium chloride and cinnamic acid,
It arrives；Wherein the myristyl benzyl dimethyl ammonium chloride and cinnamic acid are purchased from the limited public affairs of Shanghai Mike's woods biochemical technology
Department.
The dispersing agent is amido silicon oil, is bought from chemistry organosilicon Co., Ltd, SHIN-ETSU HANTOTAI, trade mark KF-864.
The ionic liquid is 1- dodecyl -3- methyl imidazolium tetrafluoroborate, and purchase is limited from the prompt chemistry of upper marine origin
Company.
A kind of oilfield chemistry recovers the oil, and with neutral de-plugging agent, the preparation method is the same as that of Example 1.
Embodiment 4
Embodiment 4 provides a kind of oilfield chemistry oil recovery neutral de-plugging agent, by weight, including following component: table
5 parts of face activating agent, 2.5 parts of metal ion chelation agent, 3.5 parts of polybasic carboxylic acid ammonium salt, 2.5 parts of nitrogenous compound, fungicide 1.8
Part, 1.3 parts of dispersing agent, 1.2 parts of ionic liquid, 80 parts of water.
It is 1:1.3 compounding that the surfactant, which is nonylphenol polyoxyethylene ether and perfluoropolyether carboxylic acid ammonium according to weight ratio,
It obtains；The nonylphenol polyoxyethylene ether is bought from Zibo Hai Jie Chemical Co., Ltd., trade mark TX-15；The perfluoropolyether
Carboxylic acid ammonium buys from Taicang Zhonghua Environmental Protection Medical Co., Ltd..
The metal ion chelation agent is aminotrimethylenephosphonic acid, is bought from Changzhou Run Yang Chemical Co., Ltd., the trade mark
For GY-308.
The polybasic carboxylic acid ammonium salt is ammonium dihydrogen citrate, is bought from upper voyage source goods and materials Co., Ltd.
The nitrogenous compound is phenylpropyl triazole, is bought from Yang Ying group, Germany.
It according to weight ratio is that 1:0.6 is compounded that the fungicide, which is myristyl benzyl dimethyl ammonium chloride and cinnamic acid,
It arrives；Wherein the myristyl benzyl dimethyl ammonium chloride and cinnamic acid are purchased from the limited public affairs of Shanghai Mike's woods biochemical technology
Department.
The dispersing agent is amido silicon oil, is bought from chemistry organosilicon Co., Ltd, SHIN-ETSU HANTOTAI, trade mark KF-864.
The ionic liquid is 1- dodecyl -3- methyl imidazolium tetrafluoroborate, and purchase is limited from the prompt chemistry of upper marine origin
Company.
A kind of oilfield chemistry recovers the oil, and with neutral de-plugging agent, the preparation method is the same as that of Example 1.
Embodiment 5
Embodiment 5 provides a kind of oilfield chemistry oil recovery neutral de-plugging agent, by weight, including following component: table
4 parts of face activating agent, 2 parts of metal ion chelation agent, 3 parts of polybasic carboxylic acid ammonium salt, 2 parts of nitrogenous compound, 1.5 parts of fungicide, dispersion
1.1 parts of agent, 0.7 part of ionic liquid, 75 parts of water.
It is 1:1.3 compounding that the surfactant, which is nonylphenol polyoxyethylene ether and perfluoropolyether carboxylic acid ammonium according to weight ratio,
It obtains；The nonylphenol polyoxyethylene ether is bought from Zibo Hai Jie Chemical Co., Ltd., trade mark TX-10；The perfluoropolyether
Carboxylic acid ammonium buys from Taicang Zhonghua Environmental Protection Medical Co., Ltd..
The metal ion chelation agent is aminotrimethylenephosphonic acid, is bought from Changzhou Run Yang Chemical Co., Ltd., the trade mark
For GY-308.
The polybasic carboxylic acid ammonium salt is ammonium dihydrogen citrate, is bought from upper voyage source goods and materials Co., Ltd.
The nitrogenous compound is phenylpropyl triazole, is bought from Yang Ying group, Germany.
It according to weight ratio is that 1:0.6 is compounded that the fungicide, which is myristyl benzyl dimethyl ammonium chloride and cinnamic acid,
It arrives；Wherein the myristyl benzyl dimethyl ammonium chloride and cinnamic acid are purchased from the limited public affairs of Shanghai Mike's woods biochemical technology
Department.
The dispersing agent is amido silicon oil, is bought from chemistry organosilicon Co., Ltd, SHIN-ETSU HANTOTAI, trade mark KF-864.
The ionic liquid is 1- dodecyl -3- methyl imidazolium tetrafluoroborate, and purchase is limited from the prompt chemistry of upper marine origin
Company.
A kind of oilfield chemistry recovers the oil, and with neutral de-plugging agent, the preparation method is the same as that of Example 1.
Comparative example 1
Comparative example 1 provides a kind of oilfield chemistry oil recovery neutral de-plugging agent, by weight, including following component: table
0.1 part of face activating agent, 2 parts of metal ion chelation agent, 3 parts of polybasic carboxylic acid ammonium salt, 2 parts of nitrogenous compound, fungicide 1.5 part, point
1.1 parts of powder, 0.7 part of ionic liquid, 75 parts of water.
Each component source described in comparative example 1 the difference is that only parts by weight difference with embodiment 5.
A kind of oilfield chemistry recovers the oil, and with neutral de-plugging agent, the preparation method is the same as that of Example 1.
Comparative example 2
Comparative example 2 provides a kind of oilfield chemistry oil recovery neutral de-plugging agent, by weight, including following component: table
30 parts of face activating agent, 2 parts of metal ion chelation agent, 3 parts of polybasic carboxylic acid ammonium salt, 2 parts of nitrogenous compound, 1.5 parts of fungicide, dispersion
1.1 parts of agent, 0.7 part of ionic liquid, 75 parts of water.
Each component source described in comparative example 2 the difference is that only parts by weight difference with embodiment 5.
A kind of oilfield chemistry recovers the oil, and with neutral de-plugging agent, the preparation method is the same as that of Example 1.
Comparative example 3
Comparative example 3 provides a kind of oilfield chemistry oil recovery neutral de-plugging agent, by weight, including following component: table
4 parts of face activating agent, 2 parts of metal ion chelation agent, 3 parts of polybasic carboxylic acid ammonium salt, 2 parts of nitrogenous compound, 1.5 parts of fungicide, dispersion
1.1 parts of agent, 0.7 part of ionic liquid, 75 parts of water.
Remaining Component Source described in comparative example 3 the difference is that only that the surfactant is nonyl phenol with embodiment 5
Polyoxyethylene ether and perfluoropolyether carboxylic acid ammonium compound to obtain according to weight ratio for 1:0.1.
A kind of oilfield chemistry recovers the oil, and with neutral de-plugging agent, the preparation method is the same as that of Example 1.
Comparative example 4
Comparative example 4 provides a kind of oilfield chemistry oil recovery neutral de-plugging agent, by weight, including following component: table
4 parts of face activating agent, 2 parts of metal ion chelation agent, 3 parts of polybasic carboxylic acid ammonium salt, 2 parts of nitrogenous compound, 1.5 parts of fungicide, dispersion
1.1 parts of agent, 0.7 part of ionic liquid, 75 parts of water.
Remaining Component Source described in comparative example 4 the difference is that only that the surfactant is nonyl phenol with embodiment 5
Polyoxyethylene ether and perfluoropolyether carboxylic acid ammonium compound to obtain according to weight ratio for 1:15.
A kind of oilfield chemistry recovers the oil, and with neutral de-plugging agent, the preparation method is the same as that of Example 1.
Comparative example 5
Comparative example 5 provides a kind of oilfield chemistry oil recovery neutral de-plugging agent, by weight, including following component: table
4 parts of face activating agent, 2 parts of metal ion chelation agent, 3 parts of polybasic carboxylic acid ammonium salt, 2 parts of nitrogenous compound, 0.1 part of fungicide, dispersion
1.1 parts of agent, 0.7 part of ionic liquid, 75 parts of water.
Each component source described in comparative example 5 the difference is that only parts by weight difference with embodiment 5.
A kind of oilfield chemistry recovers the oil, and with neutral de-plugging agent, the preparation method is the same as that of Example 1.
Comparative example 6
Comparative example 6 provides a kind of oilfield chemistry oil recovery neutral de-plugging agent, by weight, including following component: table
4 parts of face activating agent, 2 parts of metal ion chelation agent, 3 parts of polybasic carboxylic acid ammonium salt, 2 parts of nitrogenous compound, 20 parts of fungicide, dispersing agent
1.1 parts, 0.7 part of ionic liquid, 75 parts of water.
Each component source described in comparative example 6 the difference is that only parts by weight difference with embodiment 5.
A kind of oilfield chemistry recovers the oil, and with neutral de-plugging agent, the preparation method is the same as that of Example 1.
Comparative example 7
Comparative example 7 provides a kind of oilfield chemistry oil recovery neutral de-plugging agent, by weight, including following component: table
4 parts of face activating agent, 2 parts of metal ion chelation agent, 3 parts of polybasic carboxylic acid ammonium salt, 2 parts of nitrogenous compound, 1.5 parts of fungicide, dispersion
0.05 part of agent, 0.7 part of ionic liquid, 75 parts of water.
Each component source described in comparative example 7 the difference is that only parts by weight difference with embodiment 5.
A kind of oilfield chemistry recovers the oil, and with neutral de-plugging agent, the preparation method is the same as that of Example 1.
Comparative example 8
Comparative example 8 provides a kind of oilfield chemistry oil recovery neutral de-plugging agent, by weight, including following component: table
4 parts of face activating agent, 2 parts of metal ion chelation agent, 3 parts of polybasic carboxylic acid ammonium salt, 2 parts of nitrogenous compound, 1.5 parts of fungicide, dispersion
15 parts of agent, 0.7 part of ionic liquid, 75 parts of water.
Each component source described in comparative example 8 the difference is that only parts by weight difference with embodiment 5.
A kind of oilfield chemistry recovers the oil, and with neutral de-plugging agent, the preparation method is the same as that of Example 1.
Comparative example 9
Comparative example 9 provides a kind of oilfield chemistry oil recovery neutral de-plugging agent, by weight, including following component: table
4 parts of face activating agent, 2 parts of metal ion chelation agent, 3 parts of polybasic carboxylic acid ammonium salt, 2 parts of nitrogenous compound, 1.5 parts of fungicide, dispersion
1.1 parts of agent, 0.01 part of ionic liquid, 75 parts of water.
Each component source described in comparative example 9 the difference is that only parts by weight difference with embodiment 5.
A kind of oilfield chemistry recovers the oil, and with neutral de-plugging agent, the preparation method is the same as that of Example 1.
Comparative example 10
Comparative example 10 provides a kind of oilfield chemistry oil recovery neutral de-plugging agent, by weight, including following component: table
4 parts of face activating agent, 2 parts of metal ion chelation agent, 3 parts of polybasic carboxylic acid ammonium salt, 2 parts of nitrogenous compound, 1.5 parts of fungicide, dispersion
1.1 parts of agent, 15 parts of ionic liquid, 75 parts of water.
Each component source described in comparative example 10 the difference is that only parts by weight difference with embodiment 5.
A kind of oilfield chemistry recovers the oil, and with neutral de-plugging agent, the preparation method is the same as that of Example 1.
Comparative example 11
Comparative example 11 provides a kind of oilfield chemistry oil recovery neutral de-plugging agent, by weight, including following component: table
4 parts of face activating agent, 2 parts of metal ion chelation agent, 3 parts of polybasic carboxylic acid ammonium salt, 2 parts of nitrogenous compound, 1.5 parts of fungicide, dispersion
1.1 parts of agent, 15 parts of ionic liquid, 75 parts of water.
Each component source described in comparative example 11 the difference is that only that the ionic liquid is 1- hexadecane with embodiment 5
Base -3- methyl imidazolium tetrafluoroborate is bought from upper marine origin victory Chemical Co., Ltd..
A kind of oilfield chemistry recovers the oil, and with neutral de-plugging agent, the preparation method is the same as that of Example 1.
Comparative example 12
Comparative example 12 provides a kind of oilfield chemistry oil recovery neutral de-plugging agent, by weight, including following component: table
4 parts of face activating agent, 2 parts of metal ion chelation agent, 3 parts of polybasic carboxylic acid ammonium salt, 2 parts of nitrogenous compound, 1.5 parts of fungicide, dispersion
1.1 parts of agent, 15 parts of ionic liquid, 75 parts of water.
Each component source described in comparative example 12 the difference is that only that the ionic liquid is 1- butyl -3- with embodiment 5
Methyl imidazolium tetrafluoroborate is bought from upper marine origin victory Chemical Co., Ltd..
A kind of oilfield chemistry recovers the oil, and with neutral de-plugging agent, the preparation method is the same as that of Example 1.
Performance evaluation
1. rate of corrosion is tested: requiring to be examined according to 6.1 in the cleaning quality standard of HG/T2387-2007 industrial equipment
It surveys.
2. descaling rate cleans rate test: according to the 5.2.2 in the cleaning quality standard of HG/T2387-2007 industrial equipment
It is required that being detected.
Table 1
Claims (10)
1. a kind of oilfield chemistry, which recovers the oil, uses neutral de-plugging agent, which is characterized in that by weight, including following component: surface is living
Property agent, metal ion chelation agent, polybasic carboxylic acid ammonium salt, nitrogenous compound, fungicide, dispersing agent, water.
2. oilfield chemistry according to claim 1, which recovers the oil, uses neutral de-plugging agent, which is characterized in that by weight, including
Following component: 2-6 parts of surfactant, 1-3 parts of metal ion chelation agent, 2-4 parts of polybasic carboxylic acid ammonium salt, nitrogenous compound 1-3
Part, 1-2 parts of fungicide, 0.5-1.5 parts of dispersing agent, 60-90 parts of water.
3. oilfield chemistry according to claim 1, which recovers the oil, uses neutral de-plugging agent, which is characterized in that the surfactant packet
Include Polyoxyethylene Ether Nonionic Surfactant and anionic fluorinated surfactant.
4. oilfield chemistry according to claim 3, which recovers the oil, uses neutral de-plugging agent, which is characterized in that the Polyoxyethylene Ether
Nonionic surfactant is nonylphenol polyoxyethylene ether.
5. oilfield chemistry according to claim 3, which recovers the oil, uses neutral de-plugging agent, which is characterized in that anion fluorine surface
Activating agent is perfluoropolyether carboxylic acid ammonium.
6. oilfield chemistry according to claim 1, which recovers the oil, uses neutral de-plugging agent, which is characterized in that the polybasic carboxylic acid ammonium salt
Selected from one of hydrogen citrate amine, citric acid hydrogen diamine, ethylenediamine tetra-acetic acid or a variety of.
7. oilfield chemistry according to claim 1, which recovers the oil, uses neutral de-plugging agent, which is characterized in that the nitrogenous compound is
The ammoniac compounds of the structure containing-NH.
8. oilfield chemistry according to claim 7, which recovers the oil, uses neutral de-plugging agent, which is characterized in that the structure Han-NH
Ammoniac compounds are selected from azole, and guanidine, imines are one or more.
9. oilfield chemistry according to claim 1, which recovers the oil, uses neutral de-plugging agent, which is characterized in that the oilfield chemistry recovers the oil
It further include ionic liquid with neutral de-plugging agent.
10. a kind of oilfield chemistry according to claim 9, which recovers the oil, uses the preparation method of neutral de-plugging agent, which is characterized in that
Step includes: to sequentially add surfactant, metal ion chela in proportion into agitator tank under 10-50 DEG C and condition of normal pressure
Mixture, polybasic carboxylic acid ammonium salt, nitrogenous compound, fungicide, dispersing agent, ionic liquid and water arrive after stirring 1-4 hours
Neutral de-plugging agent is used in the oilfield chemistry oil recovery.
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| CN110003872A (en) * | 2019-04-12 | 2019-07-12 | 济南大学 | A kind of preparation method of environment-friendly type economic benefits and social benefits de-plugging of well scale remover |
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| CN110003872A (en) * | 2019-04-12 | 2019-07-12 | 济南大学 | A kind of preparation method of environment-friendly type economic benefits and social benefits de-plugging of well scale remover |
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| CN110701486A (en) * | 2019-10-22 | 2020-01-17 | 湖北富邦科技股份有限公司 | High-concentration long-distance additive for phosphate concentrate |
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