CN106259359B - Fungicide, preparation method and bactericidal treatments for oil field re-injection clear water - Google Patents
Fungicide, preparation method and bactericidal treatments for oil field re-injection clear water Download PDFInfo
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- CN106259359B CN106259359B CN201510243304.5A CN201510243304A CN106259359B CN 106259359 B CN106259359 B CN 106259359B CN 201510243304 A CN201510243304 A CN 201510243304A CN 106259359 B CN106259359 B CN 106259359B
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Abstract
The present invention provides a kind of fungicide, preparation method and bactericidal treatments for oil field re-injection clear water.The fungicide includes component A and B component；Wherein, component A includes isothiazolinone and/or isothiazolinone derivatives；B component includes octadecyltrimethylammonium chloride and pH adjusting agent, and the pH value of B component is 3~5.Fungicide provided by the invention is steady in a long-term, and is able to maintain higher bactericidal activity；Using under concentration, each component of fungicide can natural degradation be innocuous substance so that it is smaller to the injury of environment, there is the preferable feature of environmental protection；The cost that sterilization processing is carried out to oil field re-injection clear water is also reduced simultaneously.
Description
Technical field
The present invention relates to fungicide fields, in particular to a kind of fungicide for oil field re-injection clear water, its preparation
Method and bactericidal treatments.
Background technique
After the investment exploitation of oil field, if without corresponding displacement of reservoir oil energy supplement, formation pressure will be with the development time
Increase and be gradually reduced, oil-gas ratio is gradually increasing, underground crude oil characteristic changes, viscosity increase, flow difficulties, cause oil well
Stop-spraying.A large amount of " dead oils " finally is left in oil reservoir, or to spend very big cost that could produce a part, harvests oil field finally
Rate reduces.Therefore, necessary technical matters measure is taken, energy supplement is carried out to the oil reservoir for having started exploitation in time, makes oil
Layer keeps certain pressure.Water filling is exactly a kind of technical matters measure wherein taken to make oil reservoir keep certain pressure.
Oil field reinjection water is divided into oil field re-injection clear water and oil field recharged waste water.Oilfield sewage amount newly developed is few, is usually injected into
It is clear water.Oil field re-injection clear water, usual salinity is higher (salinity >=5000mg/L), and water quality is more complex, containing more
Harmful components can cause harmful bacteria largely to breed.A large amount of breed of harmful bacteria is brought to the normal operation of flood pattern equipment
High risks or even heavy corrosion destroy metal equipment, dirty stifled system, cause systemic breakdown.
Currently, quaternary ammonium compound class fungicide uses the most extensive commonly in the fungicide in oil field reinjection water.Season
Developing and use earliest in amine compounds species fungicide is 1227, has developed 1427,1627,1827 and right in succession in recent years
The upgraded product that 1227 substituent groups are adjusted.This kind of fungicide shows as following characteristics in oil field reinjection water sterilization:
With the increase for using the time, gradually develop drug resistance；It is larger to different water disinfecting difference on effect；In most cases,
Sulfate reducing bacteria, saprophytic bacteria and the bactericidal effect of iron bacteria cannot be combined.
At the same time, the superior bactericidal property of chlorine dioxide bactericide is also universally recognized, but due to its stability
Reason requires strictly the storage of product, traffic condition, so that its application is restricted.In recent years, dichloride chlorbenside microbial inoculum was opened
Beginning, which is used in, also exposes many deficiencies while achieving certain effect in oil field sterilization field.Major embodiment
: smell is big, is unfavorable for the health of employee；Medicine system seriously corroded；It is fast due to consuming, to long range pipe network terminal bacterial
It is unfavorable to control.So the degree of popularization and application is also extremely limited.
Further, since re-injection clear water salinity in oil field is higher, this will lead to bacterial species difference.At conventional fungicide
After managing oil field re-injection clear water, water quality is not able to satisfy the requirement of oil field reinjection water water standard still.
Presence in view of the above problems, it is necessary to develop a kind of pair of oil field re-injection clear water bactericidal effect preferably, stablize and
The fungicide of environmental protection.
Summary of the invention
The main purpose of the present invention is to provide a kind of fungicide, preparation method and sterilization for oil field re-injection clear water
Processing method, with solve in the prior art by conventional sterilization agent to oil field re-injection clear water carry out sterilization processing when, bactericidal effect compared with
Difference, while the problem that fungicide itself is unstable and not environmentally friendly enough.
To achieve the goals above, one aspect of the invention provides a kind of fungicide for oil field re-injection clear water, should
Fungicide includes component A and B component；Wherein, component A includes isothiazolinone and/or isothiazolinone derivatives；B component packet
Octadecyltrimethylammonium chloride and pH adjusting agent are included, and the pH value of B component is 3~5.
Further, fungicide further includes water, and for the total weight of fungicide, isothiazolinone and/or different
The content of thiazolinone derivative is 1.4~2.0%, the content of octadecyltrimethylammonium chloride is 30~35%, pH is adjusted
The content of agent is 5~7%.
Further, component A further includes inorganic copper fungicide, and for the total weight of fungicide, Inorganic Copper is killed
The content of microbial inoculum is 0.2~0.25%；Preferably, inorganic copper fungicide is selected from copper sulphate, basic copper carbonate and Bordeaux mixture group
At one of group or a variety of.
Further, pH adjusting agent be selected from hydrochloric acid, sulfuric acid, phosphoric acid, benzene sulfonic acid and citric acid composition one of group or
It is a variety of；The hydrochloric acid that preferred mass concentration is 22%.
Further, isothiazolinone derivatives are selected from MIT, CMIT, OIT, COIT, DCOIT, BIT, BBIT and MTI group
At one of group or a variety of.
Another aspect of the present invention additionally provides a kind of fungicide for oil field re-injection clear water, which includes isothiazole
Quinoline ketone and/or isothiazolinone derivatives, octadecyltrimethylammonium chloride and pH adjusting agent, and the pH value of fungicide be 4~
6.5。
Further, fungicide further includes water, and for the total weight of fungicide, isothiazolinone and/or different
The content of thiazolinone derivative is 1.4~2.0%, and the content of octadecyltrimethylammonium chloride is 30~35%, pH adjusting
The content of agent is 5~7%.
Further, fungicide further includes inorganic copper fungicide, and for the total weight of fungicide, Inorganic Copper is killed
The content of microbial inoculum is 0.2~0.25%；Preferably, inorganic copper fungicide is selected from copper sulphate, basic copper carbonate and Bordeaux mixture group
At one of group or a variety of.
Further, pH adjusting agent be selected from hydrochloric acid, sulfuric acid, phosphoric acid, benzene sulfonic acid and citric acid composition one of group or
It is a variety of；The hydrochloric acid that preferred mass concentration is 22%.
Further, isothiazolinone derivatives are selected from MIT, CMIT, OIT, COIT, DCOIT, BIT, BBIT and MTI group
At one of group or a variety of.
Another aspect of the present invention additionally provides a kind of preparation method of fungicide, and preparation method includes: S1, by isothiazoline
Ketone and/or isothiazolinone derivatives, optional water and the mixing of optional inorganic copper fungicide, obtain component A；S2, using pH
Regulator adjusts the pH value of octadecyltrimethylammonium chloride to 3~5, B component is obtained, to obtain a kind of fungicide；Alternatively,
Component A and B component are mixed to form the mixed liquor that pH is 4.0~6.5, obtain another fungicide.
Another aspect of the present invention provides a kind of bactericidal treatments of oil field re-injection clear water, uses above-mentioned fungicide pair
Re-injection clear water in oil field carries out sterilization processing.
Further, the salinity of oil field re-injection clear water is 5000~30000mg/L, preferably 20000~30000mg/
L。
Further, the strain in oil field re-injection clear water be selected from heterotroph iron bacteria, anaerobic type sulfate reducing bacteria and from
Support one of group of type saprophytic bacteria composition or a variety of.
Further, for the volume of oil field re-injection clear water, the usage amount of fungicide is 30~50mg/L, preferably
For 30~40mg/L.
The present invention provides a kind of fungicide, preparation method and bactericidal treatments for oil field re-injection clear water.It should
In fungicide, sterilized using isothiazolinone and/or isothiazolinone derivatives and octadecyltrimethylammonium chloride as main body
Ingredient forms therebetween the sterilization system of compounding, can when the oil field re-injection clear water to high salinity carries out sterilization processing
Play synergistic effect, hence it is evident that improve bactericidal effect.Meanwhile using isothiazolinone and/or isothiazolinone derivatives as component A
Sterilization component, sterilization component of the octadecyltrimethylammonium chloride as B component, and set 3~5 for the pH value of B component
In the range of, this can make isothiazolinone and/or isothiazolinone derivatives and octadecyltrimethylammonium chloride special
PH value condition under mix, so as to both avoid chemically reacting, keep fungicide steady in a long-term, and keep higher and kill
Bacterium activity.In addition to this, in fungicide provided by the invention, each component can natural degradation be innocuous substance so that it is to ring
The injury in border is smaller, has the preferable feature of environmental protection.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.Below in conjunction with embodiment, the present invention will be described in detail.
As described in background technology part, conventional sterilization agent is used for oil field re-injection clear water in the prior art and is killed
When bacterium is handled, bactericidal effect is poor, while fungicide itself is unstable and not environmentally friendly enough.In order to solve this problem, of the invention
A kind of fungicide for oil field re-injection clear water is provided, which includes component A and B component；Wherein, component A includes different
Thiazolinone and/or isothiazolinone derivatives；B component includes octadecyltrimethylammonium chloride and pH adjusting agent, and B component
PH value be 3~5.
In fungicide provided by the invention, with isothiazolinone and/or isothiazolinone derivatives and octadecyl front three
Ammonium chloride forms therebetween the sterilization system of compounding as main body sterilization component, clear in the oil field re-injection to high salinity
When water carries out sterilization processing, synergistic effect can be played, hence it is evident that improve bactericidal effect.Simultaneously as isothiazolinone and/or different
Thiazolinone derivative and with octadecyltrimethylammonium chloride be easy to happen in direct mixed process chemical reaction and generate
It precipitates and bactericidal activity is caused to reduce, in above-mentioned fungicide provided by the invention, isothiazolinone and/or isothiazolinone are spread out
Sterilization component of the biology as component A, using octadecyltrimethylammonium chloride as the sterilization component of B component, and by B component
PH value is set as in the range of 3~5.By B component control pH control within the above range, can make isothiazolinone and/or
Isothiazolinone derivatives can be mixed with octadecyltrimethylammonium chloride under special pH value condition, so as to
It avoids the two that chemical reaction occurs and precipitates, keeps fungicide steady in a long-term, and keep higher bactericidal activity.In addition to this, exist
In use, each component of fungicide provided by the invention can natural degradation be innocuous substance so that its to the injury of environment compared with
It is small, there is the preferable feature of environmental protection.To sum up, fungicide provided by the invention it is excellent to the bactericidal effect of oil field re-injection clear water,
The stable high and feature of environmental protection of fungicide itself is preferable.
In fungicide provided by the invention, as long as can be obtained by the sterilization with higher comprehensive performance with said components
Agent.In a preferred embodiment, fungicide further includes water, and for the total weight of fungicide, isothiazoline
The concentration of ketone and/or isothiazolinone derivatives is 1.4~2.0%, the concentration of octadecyltrimethylammonium chloride is 30~
35%, the content of pH adjusting agent is 5~7%.The content of each component in fungicide is controlled under above range, it also can be into one
Step improves bactericidal property of the fungicide in oil field re-injection clear water.
Fungicide with above-mentioned composition realizes the higher bactericidal effect of comprehensive performance.In a kind of preferred embodiment
In, component A further includes inorganic copper fungicide, and for the total weight of fungicide, and the content of inorganic copper fungicide is 0.2
~0.25%.Copper ion in inorganic copper fungicide is heavy metal ion, and protein denaturation can be made by contacting with bacterium, to rise
To bactericidal effect.In addition to this, there is good compatibility between the other components in inorganic copper fungicide and above-mentioned fungicide,
And bactericidal effect is complemented each other, therefore in fungicide provided by the invention, and it is advantageous further to add inorganic copper fungicide component
In the bactericidal effect for further increasing fungicide.Preferably, inorganic copper fungicide includes but is not limited to copper sulphate, basic copper carbonate
With one of the group of Bordeaux mixture composition or a variety of.Above-mentioned inorganic copper fungicide all has good bactericidal effect, and source
Extensively, the production and application cost of above-mentioned fungicide is advantageously reduced.
In above-mentioned fungicide, as long as the pH adjusting agent used in B component can adjust pH value.It is provided by the invention to kill
In microbial inoculum, those skilled in the art can choose pH adjusting agent commonly used in the art.In a preferred embodiment, pH tune
Section agent includes but is not limited to one of group of hydrochloric acid, sulfuric acid, phosphoric acid, benzene sulfonic acid and citric acid composition or a variety of.Above-mentioned pH tune
Section agent is at low cost, therefore the cost of fungicide provided by the invention is advantageously reduced using above-mentioned pH adjusting agent.Preferably, pH tune
Section agent use mass concentration for 22% hydrochloric acid.PH value of the hydrochloric acid in addition to that can adjust B component, the chloride ion itself carried also have
There is certain bactericidal effect.Fungicide can further be improved while quickly adjusting pH value as pH adjusting agent using it
Bactericidal effect.
In fungicide provided by the invention, isothiazolinone derivatives select compound commonly used in the art.One
In kind of preferred embodiment, isothiazolinone derivatives include but is not limited to MIT, CMIT, OIT, COIT, DCOIT, BIT,
One of group of BBIT and MTI composition is a variety of.Above compound bactericidal activity with higher, while itself and octadecyl
Trimethyl ammonium chloride has preferable synergistic effect.
Another aspect provides a kind of preparation method of fungicide, which includes: S1, by isothiazole
Quinoline ketone and/or isothiazolinone derivatives, optional water and the mixing of optional inorganic copper fungicide, obtain component A；S2 is used
PH adjusting agent adjusts the pH value of octadecyltrimethylammonium chloride to 3~5, B component is obtained, to obtain above-mentioned fungicide.
Since isothiazolinone and/or isothiazolinone derivatives were directly being mixed with octadecyltrimethylammonium chloride
It is easy to happen chemical reaction in journey and generates and precipitates and bactericidal activity is caused to reduce, it, will in above-mentioned fungicide provided by the invention
The sterilization component of isothiazolinone and/or isothiazolinone derivatives as component A, while by octadecyltrimethylammonium chloride
It is set as in the range of 3~5 as the sterilization component of B component, and by the pH value of B component.The pH of B component control is controlled upper
It states in range, isothiazolinone and/or isothiazolinone derivatives and octadecyltrimethylammonium chloride can be enable in spy
Different pH value condition mixing keeps fungicide steady in a long-term so as to avoid the two from generating precipitating because chemical reaction occurs, and
And also it is able to maintain higher bactericidal activity.
Another aspect of the present invention additionally provides a kind of fungicide for oil field re-injection clear water, which includes isothiazole
Quinoline ketone and/or isothiazolinone derivatives, octadecyltrimethylammonium chloride and pH adjusting agent, and the pH value of fungicide be 4~
6.5。
In fungicide provided by the invention, with isothiazolinone and/or isothiazolinone derivatives and octadecyl front three
Ammonium chloride forms therebetween the sterilization system of compounding as main body sterilization component, clear in the oil field re-injection to high salinity
When water carries out sterilization processing, synergistic effect can be played, hence it is evident that improve bactericidal effect.The pH of fungicide is controlled above-mentioned simultaneously
In range, be conducive to improve the compatible of isothiazolinone and/or isothiazolinone derivatives and octadecyltrimethylammonium chloride
Property and long-time stability, to be improved the bactericidal activity of fungicide.In addition to this, when in use, provided by the invention to kill
The each component of microbial inoculum can natural degradation be innocuous substance so that it is smaller to the injury of environment, there is the preferable feature of environmental protection.Always
For it, fungicide provided by the invention is excellent to the bactericidal effect of oil field re-injection clear water, fungicide itself is stable high and environmental protection
Property is preferable.
In fungicide provided by the invention, as long as can be obtained by the sterilization with higher comprehensive performance with said components
Agent.In a preferred embodiment, fungicide further includes water, and for the total weight of fungicide, isothiazoline
The content of ketone and/or isothiazolinone derivatives is 1.4~2.0%, the content of octadecyltrimethylammonium chloride is 30~
35%, the content of pH adjusting agent is 5~7%.The content of each component in fungicide is controlled under above range, it also can be into one
Step improves bactericidal property of the fungicide in oil field re-injection clear water.
Fungicide with above-mentioned composition realizes the higher bactericidal effect of comprehensive performance.In a kind of preferred embodiment
In, fungicide further includes inorganic copper fungicide, and for the total weight of fungicide, and the content of inorganic copper fungicide is
0.2~0.25%；Copper ion in inorganic copper fungicide is heavy metal ion, and protein denaturation can be made by contacting with bacterium, from
And play bactericidal effect.In addition to this, there is good phase between inorganic copper fungicide and the other components in above-mentioned fungicide
Capacitive, and bactericidal effect is complemented each other, therefore in fungicide provided by the invention, further adds inorganic copper fungicide component
Be conducive to further increase the bactericidal effect of fungicide.Preferably, inorganic copper fungicide includes but is not limited to copper sulphate, alkali formula carbon
One of group of sour copper and Bordeaux mixture composition is a variety of.Above-mentioned inorganic copper fungicide all has good bactericidal effect, and
It is from a wealth of sources, advantageously reduce the production and application cost of above-mentioned fungicide.
In above-mentioned fungicide, as long as the pH adjusting agent used in B component can adjust pH value.In a kind of preferred reality
Apply in mode, pH adjusting agent include but is not limited to hydrochloric acid, sulfuric acid, phosphoric acid, benzene sulfonic acid and citric acid composition one of group or
It is a variety of；The hydrochloric acid that preferred mass concentration is 22%.Above-mentioned pH adjusting agent is at low cost, therefore is conducive to drop using above-mentioned pH adjusting agent
The cost of low fungicide provided by the invention.Preferably, pH adjusting agent use mass concentration for 22% hydrochloric acid.Hydrochloric acid is in addition to energy
The pH value of B component is enough adjusted, the chloride ion itself carried also has certain bactericidal effect.It can as pH adjusting agent using it
While quickly adjusting pH value, further improve the bactericidal effect of fungicide.
In fungicide provided by the invention, isothiazolinone derivatives select compound commonly used in the art.One
In kind of preferred embodiment, isothiazolinone derivatives include but is not limited to MIT, CMIT, OIT, COIT, DCOIT, BIT,
One of group of BBIT and MTI composition is a variety of.Above compound bactericidal activity with higher, while itself and octadecyl
Trimethyl ammonium chloride has preferable synergistic effect.
Another aspect provides a kind of preparation method of fungicide, which includes: S1, by isothiazole
Quinoline ketone and/or isothiazolinone derivatives, optional water and the mixing of optional inorganic copper fungicide, obtain component A；S2 is used
PH adjusting agent adjusts the pH value of octadecyltrimethylammonium chloride to 3~5, obtains B component；And S3, by component A and B component
It is mixed to form the mixed liquor that pH is 4.0~6.5, obtains above-mentioned fungicide.
Using isothiazolinone and/or isothiazolinone derivatives and octadecyltrimethylammonium chloride as main body sterilization at
Point, the sterilization system of compounding is formed therebetween, when the oil field re-injection clear water to high salinity carries out sterilization processing, Neng Goufa
Wave synergistic effect, hence it is evident that improve bactericidal effect.Simultaneously within the above range by the pH control of fungicide, be conducive to improve isothiazole
The compatibility and long-time stability of quinoline ketone and/or isothiazolinone derivatives and octadecyltrimethylammonium chloride, to obtain
Improve the bactericidal activity of fungicide.It is used as fungicide after simultaneously mixing component A and B component, it is mixed without first component A and B component
Conjunction just can be applied directly, be conducive to shorten the sterilization processing period.
It should be noted that fungicide provided by the invention is in practical process for preparation, after component A and B component prepare,
It needs to carry out slaking reaction respectively, then again mixes two kinds of components of curing.Above two component is carried out respectively ripe
Change, is conducive to obtain property stable component A and B component, while being conducive to above two component and preferably playing synergistic effect.
Preferably, the curing time is for 24 hours.
Another aspect of the present invention additionally provides a kind of bactericidal treatments of oil field re-injection clear water, uses above-mentioned sterilization
Agent carries out sterilization processing to oil field re-injection clear water.
Oil field re-injection clear water salinity usually with higher.When salinity is higher, still energy in some bacterium water
Enough grow more vigorous, while the survival of some bacteriums also relies on mineralogical composition, such as vibrio alginolyticus, Staphylococcus aureus
Bacterium, Halophiles etc..The sterilization mechanism of conventional sterilization agent is mostly the synthesis for inhibiting certain compounds in bacterium, to play sterilization
Effect.And in the clear water with high salinity, conventional fungicide cannot pass through the conjunction of certain compounds in inhibition bacterium
At, and then sterilization cannot be played the role of.
When being sterilized using above-mentioned fungicide provided by the invention to oil field re-injection clear water, it can block from the root thin
Absorption of the born of the same parents to nutriment, to reach the growth for inhibiting bacterium in oil field re-injection clear water.Treated, and clear water can reach works as
Ground oil field reinjection water water quality requirement eliminates bacterium in water to the corrosion harmfulness of injection pipe network and water injection equipment, to greatly mention
Oil-field flooding efficiency is risen, achievees the purpose that oilfield stable production has many advantages, such as that bactericidal effect is good, at low cost.
Bactericidal treatments provided by the invention are applicable to the oil field re-injection clear water of any salinity.A kind of preferred
In embodiment, the salinity of oil field re-injection clear water is 5000~30000mg/L, preferably 20000~30000mg/L.In oil
In field re-injection clear water, when salinity is greater than 10000mg/L, conventional fungicide cannot play the role of sterilization.And this hair
Various components are used in compounding in the fungicide of bright offer, it is not only made to have preferable sterilization in the clear water compared with low mineralization
Performance, and the bactericidal effect still with higher when salinity is greater than 20000mg/L.
The bactericidal treatments of re-injection clear water in oil field provided by the invention have universality to the bacterium of this field.In one kind
In preferred embodiment, the strain in oil field re-injection clear water include but is not limited to heterotroph iron bacteria, anaerobic type sulfate also
One of opportunistic pathogen and the group of autotrophic type saprophytic bacteria composition are a variety of.In water of the salinity greater than 10000mg/L, conventional is killed
Microbial inoculum cannot play good bactericidal effect to above-mentioned strain, and the formula of the fungicide of the application is through indoor biometrics and now
Field verification experimental verification has good bactericidal effect to three bacterium in above-mentioned concentrated water.
Preferable bactericidal effect can be played using the bactericidal treatments of above-mentioned oil field re-injection clear water.A kind of preferred
In embodiment, for the volume of oil field re-injection clear water, the usage amount of fungicide is 30~50mg/L.Due to the present invention
The fungicide of offer bactericidal effect with higher, so as to which the dosage of fungicide is effectively reduced, reduce sterilization process at
This.
In actual use, according to the bacterial content detected in oil field re-injection clear water, fungicide adds concentration
It can be adjusted from high to low.Impact adding consistency (80~100mg/L) is preferably used using preceding, has decline to bacterial content in water
After trend, can the concentration that adds of appropriate adjustment product generally prepare 30~50mg/L or so, preparation in one day is once advisable.
And for being added for concentration for a long time, it is preferable that for the volume of the oil field re-injection clear water, fungicide
Usage amount be 30~40mg/L.Using above-mentioned concentration, be conducive to effectively inhibit while reaching required bactericidal effect
The drug resistance of bacterium in oil field re-injection clear water.
Below in conjunction with specific embodiment, present invention is further described in detail, these embodiments should not be understood as limitation originally
Invent range claimed.
It should be noted that in the embodiment of the present invention, using commercially available isothiazolinone or isothiazolinone derivatives
Aqueous solution be raw material, the mass concentration of the aqueous solution of the commercially available isothiazolinone or isothiazolinone derivatives is 14%,
Therefore it usually requires first to be diluted when in use.
Fungicide in embodiment 1 to 5 is prepared using following technique:
S1 mixes isothiazolinone and/or isothiazolinone derivatives, optional water and optional inorganic copper fungicide
It closes, obtains component A, curing is for 24 hours；
S2, the pH value for adjusting octadecyltrimethylammonium chloride using pH adjusting agent obtain B component, curing is for 24 hours to 3~5
To obtain fungicide.(in use, component A and B component are mixed).
Fungicide in embodiment 6 to 9 and comparative example 1 is prepared using following technique:
S1 mixes isothiazolinone, water and optional inorganic copper fungicide, obtains component A, curing is for 24 hours；
S2, the pH value for adjusting octadecyltrimethylammonium chloride using pH adjusting agent obtain B component, cure to 3~5
24h；Then component A and component B are mixed to form mixed liquor that pH is 4.0~6.5 to obtaining fungicide.
The concrete component for the fungicide that embodiment 1 to 9 and comparative example 1 to 3 provide is shown in Table 1；
The bactericidal effect for the fungicide that embodiment 1 to 9 and comparative example 1 to 3 provide is shown in Table 2；
The research work for carrying out disinfecting agent prescription to certain disposing polluted water in oil station clear water re-injection system, will be of the invention real
The bactericidal effect for applying the fungicide that fungicide made from example 1 is provided with comparative example 2 and comparative example 3 compares, and the results are shown in Table 3.
Table 1
Table 2
Remarks 1, clear water salinity are as follows: 22000mg/L；2, test temperature: 24 DEG C.
Table 3
It can be seen from the above description that the above embodiments of the present invention realized the following chievements: to oil field
In re-injection clear water on the bactericidal effect of iron bacteria, sulfate reducing bacteria and saprophytic bacteria, compared in comparative example 1 and comparative example 2
Conventional dose, fungicide provided by the invention have preferably bactericidal effect；It meanwhile being 5000~30000mg/ for salinity
In the larger range of L, stable and excellent bactericidal effect is can still be maintained in fungicide provided by the invention.
In addition, in the research work to certain disposing polluted water in oil station clear water re-injection system, by adding offer of the present invention
Fungicide after, bacterial content is controlled steadily in the long term in above-mentioned clear water re-injection system water, and is largely reduced
Harm of the bacterium to the corrosion and scaling of equipment, pipe network, it is ensured that oilfield safety production.During field test, hundredweight has been launched
Product forms about 1,430,000 yuan of the output value, according to processed in units cost calculation, can save the processing cost of 150~2,000,000 yuan/year.
Fungicide provided by the invention, with isothiazolinone and/or isothiazolinone derivatives and octadecyl trimethyl
Ammonium chloride forms therebetween the sterilization system of compounding, in the oil field re-injection clear water to high salinity as main body sterilization component
When carrying out sterilization processing, synergistic effect can be played, hence it is evident that improve bactericidal effect.Meanwhile by isothiazolinone and/or isothiazole
Sterilization component of the quinoline ketone derivatives as component A, using octadecyltrimethylammonium chloride as the sterilization component of B component, and by B
The pH value of component is set as in the range of 3~5.Within the above range by the pH control of B component control, it will be able to make isothiazoline
Ketone and/or isothiazolinone derivatives mix under special pH value condition with octadecyltrimethylammonium chloride, so as to
It avoids the two from chemically reacting, keeps fungicide steady in a long-term, and keep higher bactericidal activity.In addition to this, using dense
Under degree, each component in fungicide provided by the invention can natural degradation be innocuous substance so that its to the injury of environment compared with
It is small, there is the preferable feature of environmental protection.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (17)
1. a kind of fungicide for oil field re-injection clear water, which is characterized in that the fungicide includes component A and B component；Its
In,
The component A includes isothiazolinone and/or isothiazolinone derivatives；The B component includes octadecyl trimethyl
Ammonium chloride and pH adjusting agent, and the pH value of the B component is 3~5；The fungicide further includes water, and relative to the sterilization
For the total weight of agent, the content of the isothiazolinone and/or isothiazolinone derivatives is 1.4~2.0%, described 18
The content of alkyl trimethyl ammonium chloride is 30~35%, the content of the pH adjusting agent is 5~7%, wherein the isothiazoline
Ketone derivatives are selected from one of group of MIT, CMIT, OIT, COIT, DCOIT, BIT, BBIT and MTI composition or a variety of.
2. fungicide according to claim 1, which is characterized in that the component A further includes inorganic copper fungicide, and opposite
For the total weight of the fungicide, the content of the inorganic copper fungicide is 0.2~0.25%.
3. fungicide according to claim 2, which is characterized in that the inorganic copper fungicide is selected from copper sulphate, alkali formula carbon
One of group of sour copper and Bordeaux mixture composition is a variety of.
4. fungicide according to claim 2 or 3, which is characterized in that the pH adjusting agent be selected from hydrochloric acid, sulfuric acid, phosphoric acid,
One of group of benzene sulfonic acid and citric acid composition is a variety of.
5. fungicide according to claim 4, which is characterized in that the pH adjusting agent is selected from the salt that mass concentration is 22%
Acid.
6. a kind of fungicide for oil field re-injection clear water, which is characterized in that the fungicide includes isothiazolinone and/or different
Thiazolinone derivative, octadecyltrimethylammonium chloride and pH adjusting agent, and the pH value of the fungicide is 4~6.5；It is described
Fungicide further includes water, and for the total weight of the fungicide, the isothiazolinone and/or isothiazolinone are spread out
The content of biology is 1.4~2.0%, and the content of the octadecyltrimethylammonium chloride is 30~35%, the pH adjusting agent
Content be 5~7%；Wherein the isothiazolinone derivatives be selected from MIT, CMIT, OIT, COIT, DCOIT, BIT, BBIT and
One of group of MTI composition is a variety of.
7. fungicide according to claim 6, which is characterized in that the fungicide further includes inorganic copper fungicide, and phase
For the total weight of the fungicide, the content of the inorganic copper fungicide is 0.2~0.25%.
8. fungicide according to claim 7, which is characterized in that the inorganic copper fungicide is selected from copper sulphate, alkali formula carbon
One of group of sour copper and Bordeaux mixture composition is a variety of.
9. fungicide according to claim 7 or 8, which is characterized in that the pH adjusting agent be selected from hydrochloric acid, sulfuric acid, phosphoric acid,
One of group of benzene sulfonic acid and citric acid composition is a variety of.
10. fungicide according to claim 9, which is characterized in that it is 22% that the pH adjusting agent, which is selected from mass concentration,
Hydrochloric acid.
11. a kind of preparation method of fungicide, which is characterized in that the preparation method includes:
Isothiazolinone and/or isothiazolinone derivatives, optional water and optional inorganic copper fungicide are mixed, are obtained by S1
To component A；
S2, the pH value for adjusting octadecyltrimethylammonium chloride using pH adjusting agent obtain B component, to be weighed to 3~5
Benefit require any one of 1 to 5 described in fungicide；Alternatively, by the component A and the B component be mixed to form pH be 4.0~
6.5 mixed liquor obtains fungicide described in any one of claim 6 to 10.
12. a kind of bactericidal treatments of oil field re-injection clear water, which is characterized in that using described in any one of claims 1 to 9
Fungicide to the oil field re-injection clear water carry out sterilization processing.
13. bactericidal treatments according to claim 12, which is characterized in that the salinity of the oil field re-injection clear water is
5000~30000mg/L.
14. bactericidal treatments according to claim 13, which is characterized in that the salinity of the oil field re-injection clear water is
20000~30000mg/L.
15. bactericidal treatments described in any one of 2 to 14 according to claim 1, which is characterized in that the oil field re-injection is clear
Strain in water be selected from heterotroph iron bacteria, anaerobic type sulfate reducing bacteria and autotrophic type saprophytic bacteria composition one of group or
It is a variety of.
16. bactericidal treatments according to claim 15, which is characterized in that the body relative to the oil field re-injection clear water
For product, the usage amount of the fungicide is 30~50mg/L.
17. bactericidal treatments according to claim 16, which is characterized in that the body relative to the oil field re-injection clear water
For product, the usage amount of the fungicide is 30~40mg/L.
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| CN109819983A (en) * | 2019-02-19 | 2019-05-31 | 无锡威士德气体净化科技有限公司 | A kind of compound disinfectant and its preparation method and application for circulating water sterilizing |
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| CN1918991A (en) * | 2006-09-07 | 2007-02-28 | 曹建明 | Color-change leather sterilization anti-fungus agent composition, preparation method and using method thereof |
| CN104610951A (en) * | 2015-01-12 | 2015-05-13 | 陕西延长石油油田化学科技有限责任公司 | Sterilization algaecide used for oil field and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1918991A (en) * | 2006-09-07 | 2007-02-28 | 曹建明 | Color-change leather sterilization anti-fungus agent composition, preparation method and using method thereof |
| CN104610951A (en) * | 2015-01-12 | 2015-05-13 | 陕西延长石油油田化学科技有限责任公司 | Sterilization algaecide used for oil field and preparation method thereof |
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