CN103666426A - Oil field water biological treatment agent as well as preparation method and use method thereof - Google Patents
Oil field water biological treatment agent as well as preparation method and use method thereof Download PDFInfo
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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- C09K8/528—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning inorganic depositions, e.g. sulfates or carbonates
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Abstract
The invention relates to the technical field of sewage treatment agents, and relates to an oil field water biological treatment agent as well as a preparation method and a use method thereof. The oil field water biological treatment agent is obtained according to the preparation method which comprises the following step: sufficiently mixing a required quantity of denitrification and nitrification bacteria solutions, nitrate, nitrite, biquaternary ammonium salt sludge strippers, oil field sewage, potassium permanganate, potassium dichromate and water to obtain the oil field water biological treatment agent. The oil field water biological treatment agent disclosed by the invention can sufficiently exert the richness and effectiveness of indigenous beneficial microorganisms by being prepared by adopting oil field sewage, comprehensively inhibit the activity and growth of sulphate reducing bacteria and control the generation of hydrogen sulfide by enabling the indigenous beneficial microorganisms to compete with the residual sulphate reducing bacteria by virtue of a higher advantage, fundamentally reduce the problem of secondary hydrogen sulfide caused by the sulphate reducing bacteria by inhibiting the growing environment of the sulphate reducing bacteria and changing the generation way of corrosion, prevent the factor of increasing oil field corrosion and inhibit the cost.
Description
Technical field
the present invention relates to sewage-treating agent technical field, is a kind of oil-field water biological treatment agent and preparation method thereof and using method.
Background technology
in petroleum industry, the ground being caused by microorganism and the oil bearing reservoir souring of underground installation burn into and sulphide staining problem are very severe, have caused the problems such as serious economy, environment and safety in production.In waterflood system, the amount reproduction of sulphate reducing bacteria is the major cause that causes this harm.The Main Means of oil field control sulphate reducing bacteria is to add a large amount of chemical bactericides; but because sulphate reducing bacteria is normal and other microorganisms coexist in the polysaccharide gum microbial film of microorganisms and are protected; sterilant is difficult for penetrating; and in its reductibility environment in hydrogen sulfide, make general oxidative bactericide be difficult to play effective sterilization effect.Biomembranous existence, makes germ-killing efficiency reduce, even lose efficacy, to such an extent as to produces resistant organism.Therefore, use chemical agent not only to make chemical feeding quantity increasing, cost accounting is more and more higher, and causes new environmental pollution, is difficult to obtain the prevention effect of expection.In addition, consider that the environment that utilizes of oil-field water is dynamic, bacterial reproduction is fission process, and directly sterilization is real in " curing the symptoms, not the disease ", is difficult to permanently effective.Publication number is that the Chinese patent literature of CN 101336642B discloses a kind of inhibitor that prevents sulfate reducing bacteria corrosion, and described in it, the weight percentage composition of inhibitor consists of: the reduction that content is 0.05% (H00Bt) C
7
h
5
n
3
o
2
the aqueous solution 13.5% to 18%, magnesium sulfate MgSO
4
7H
2
o 2% to 5%, sodium sulfate 1.5% to 4.5%, yeast extract paste 0.05% to 0.2%, hydrogen sulfate dipotassium 0.5% to 2%, vitamins C 0.05% to 0.5% and water.At oil well, prevent in the process of sulphate reducing bacteria, 0.05%, to 0.1% dosage in the situation that, make the content of sulphate reducing bacteria in system be less than 25/ml.Publication number is that the Chinese patent literature of CN 1583177A discloses a kind of method for disinfection of controlling oil field sulfate reductive bacterium growth corrosion, and described is lower than vitriol electromotive force, can preferentially obtain electronics, reduces S
2-
the sterilant of growing amount is the compound of nitrate or nitrate and quaternary ammonium salt sterilant.With injected water, be filled into stratum, thus the growing environment by inhibiting sulfate reduction bacterium and change corrosion development ways and reach the object that reduces the etching extent that sulphate reducing bacteria causes.Publication number is the Chinese patent literature of CN 101235359A microbiobacterial agent of disclosing a kind of sulfate reducing bacteria resisting and preparation method thereof.Described microbiobacterial agent is for can secrete one or more in antibiotic bacterium and slime bacteria, streptomycete and genus bacillus, through cultivating the bacterium liquid product that formation is single or mix, or after fermentation, form single or mixed fermentation liquid and extraction concentrated solution product thereof.This microbiobacterial agent can suppress the growth of unwanted bacteria in film dirt completely, can reduce the use of chemical agent, is beneficial to the protection of ecotope, and preparation technology is simple, easy to implement.Publication number is that the Chinese patent literature of CN 101313681A discloses the ecological control method of sulfate reducing bacteria activity in the surface water of a kind of oil field and the inhibitor using.Described inhibitor mixes enlarged culturing by six kinds of denitrification nitrobacterias under the substratum of appointment, and the concentration that obtains bacterium is 10
5
to 10
9
the denitrification nitrifier liquid of individual/ml, then makes the denitrification nitrifier liquid of 10 parts to 20 parts, the nutritive element (SODIUMNITRATE, saltpetre or Sodium Nitrite) of 0.01 part to 0.08 part and collaborative inhibitory substance (ammonium molybdate, Sodium orthomolybdate or the cupric nitrate) mixing of 0.01 part to 0.05 part by ratio of quality and the number of copies.Mol ratio by sulfate radical and nitrate radical 1:0.8 to 1:6 in the surface water water body of oil field adds inhibitor.The efficiency of this invention inhibiting sulfate reduction bacterium is high, has avoided use sterilant, safety and environmental protection.Publication number is that the Chinese patent literature of CN 101746897B discloses a kind of nutrition and application thereof that suppresses sulphate reducing bacteria in oil-field water.Described nutrition is by mass percentage by cane molasses or beet sirup: 20% to 95%, with/ammonium phosphate: 1% to 45%, and ammonium chloride: 0.5% to 10%, with/ammonium sulfate: 0.5% to 2.5%, and/ammonium nitrate: 1% to 18.5%, and/or SODIUMNITRATE: 0.05% to 49%, and/or Secondary ammonium phosphate: 0.05% to 1%, and/or Sodium phosphate dibasic: 0.05% to 1.2%, and/or dipotassium hydrogen phosphate 0.5% to 2%, and/or potassium primary phosphate 0.05% to 1.5%.Get the nutrition of injected water weight 0.5% to 5%, with construction injected water or the oil field surface water, dissolve, by pump truck, nutritive medium is clamp-oned to stratum by water injection well, after 16 hours to 52 days, sulphate reducing bacteria is 0/ml to 100/ml, incremental oil production 10% to 30%.Publication number is that the Chinese patent literature of CN 100465267C discloses a kind of microbial preparation and application thereof of controlling oil field sulfate reductive bacterium harm.Described microbial preparation is added in pending water, and the ratio that dosage accounts for respectively processing water is: denitrifying bacteria culture (pseudomonas putida or thiobacillus denitrificans), (5 to 100) * 10 of under appointment substratum, cultivating of 0.1 part to 10 parts
-3
the nutritive element of part and (1 to 200) * 10
-6
the collaborative nutritive element of part.This invention, by add microbial preparation in system, makes denitrifying bacterium competition suppress the growth of SRB, stops SRB to produce hydrogen sulfide, and removes the sulfide having existed in system.Meanwhile, the meta-bolites (N of microorganisms
2
with tensio-active agent etc.) also improved oil well recovery ratio.Publication number is that the Chinese patent literature of CN 100508758C discloses a kind of inhibition medicament that suppresses the method for sulfate reducing bacteria activity in the surface water of oil field and use.Described inhibition medicament is comprised of the SODIUMNITRATE of 100 parts, the Sodium Nitrite of 2 parts to 20 parts, the Jing Ti/Bao Pian COBALT NITRATE CRYSTALS/FLAKES of 0.2 part to 0.6 part, the nickelous nitrate of 0.2 part to 0.6 part, the cupric nitrate of 0.2 part to 0.6 part and the Sodium orthomolybdate of 0.2 part to 0.6 part by ratio of quality and the number of copies.Mol ratio by sulfate radical in water body and nitrate radical 1:0.5 to 1:5 adds inhibitor mother liquor, can suppress the activity of sulphate reducing bacteria in the surface water of oil field, can reduce S in the surface water of oil field
2-
concentration reaches more than 85%.Publication number is that the Chinese patent literature of CN 102090420A discloses a kind of crude oil gathering system sulphate reducing bacteria and generates secondary hydrogen sulfide biological inhibition method.The biostats that suppresses individual well is comprised of 50mg/l Sodium Nitrite, 20mg/l Sodium Tetraborate; Suppress the biostats of petroleum transferring station by humic acids, 10mg/l to 20mg/l Sodium Tetraborate, 20mg/l to the 30mg/l sodium hydroxide electrolyte ingredient of 40mg/l to 60mg/l Sodium Nitrite, 25mg/l; The biotechnological formulation of inhibition joint station is comprised of humic acids, 10mg/l to 20mg/l Sodium Tetraborate, 20mg/l to 30mg/l sodium hydroxide ionogen, the 95mg/l glutaraldehyde sterilant of 40mg/l to 60mg/l Sodium Nitrite, 25mg/l.Yet, the method of sulphate reducing bacteria in the inhibition oil-field water that above-mentioned prior art is recorded, have the following disadvantages: the microorganism in the microbial bacteria liquid product of 1, introducing, the part beneficial microorganism of just cultivating through special domestication and obtaining, truly do not bring into play the indigenous beneficial microorganism effect of abundant species, inhibition does not reach expection.2, in most inhibition oil-field waters, in the method for sulphate reducing bacteria, do not consider mineral substance and the zwitterion utility value that oilfield sewage self is contained, adding of vitriol, chlorate etc., has not only increased inhibition cost, and has strengthened the factor of oil field corrosion.
Summary of the invention
the invention provides a kind of oil-field water biological treatment agent and preparation method thereof and using method, overcome the deficiency of above-mentioned prior art, it can effectively solve the microorganism suppressing in prior art in microbial bacteria liquid product that in oil-field water, sulphate reducing bacteria is introduced and truly not bring into play the indigenous beneficial microorganism effect of abundant species and cause the method for sulphate reducing bacteria in the undesirable and existing inhibition oil-field water of inhibition to suppress the problem that cost is high, even strengthened the factor of oil field corrosion.
one of technical scheme of the present invention realizes by following measures: a kind of oil-field water biological treatment agent, its by weight percentage ratio meter raw material contain 0.1% to 5% denitrification nitrobacteria bacterium liquid, 0.05% to 0.5% nitrate, 0.05% to 0.5% nitrite, 0.001% to 0.01% double quaternary ammonium salt type adhesive mud remover, 5 * 10
-7
% to 1 * 10
-6
the potassium permanganate of %, 1 * 10
-5
% to 2 * 10
-5
the oilfield sewage containing origin denitrifying bacterium microorganism and nitrobacteria microorganism of the potassium bichromate of % and surplus.
the further optimization and/or improvements to one of foregoing invention technical scheme below:
the origin denitrifying bacterium microorganism of above-mentioned denitrification nitrobacteria bacterium liquid in oilfield sewage and nitrobacteria microorganism enlarged culturing and obtain, wherein, denitrification nitrobacteria bacterium liquid obtains as follows: count by weight, by the nitrate of 0.1 part to 0.5 part, the nitrite of 0.1 part to 0.5 part, after the oilfield sewage containing origin denitrifying bacterium microorganism and nitrobacteria microorganism of the double quaternary ammonium salt type adhesive mud remover of 0.001 part to 0.01 part and 98.99 parts to 99.8 parts fully mixes, in airtight container, pH is 7 to 8, temperature is under 25 ℃ to 35 ℃ conditions, to cultivate within 3 days to 15 days, to obtain denitrification nitrobacteria bacterium liquid.
the above-mentioned oilfield sewage containing origin denitrifying bacterium microorganism and nitrobacteria microorganism is the oilfield sewage that common oil field extracted water technique or water injection technology any point are obtained, containing oleaginousness in the oilfield sewage of origin denitrifying bacterium microorganism and nitrobacteria microorganism between 0mg/L to 500mg/L, containing origin denitrifying bacterium microorganism and nitrobacteria microorganism total amount minimum be 100/more than ml.
above-mentioned nitrate is more than one in SODIUMNITRATE and saltpetre; Or/and nitrite is more than one in Sodium Nitrite and potassium nitrite; Or/and double quaternary ammonium salt type adhesive mud remover is the double quaternary ammonium salt type adhesive mud remover that the model of Xinjiang DeLan Co., Ltd's production is JN-988.
above-mentioned oil-field water biological treatment agent obtains as follows: by the denitrification nitrobacteria bacterium liquid of aequum, nitrate, nitrite, double quaternary ammonium salt type adhesive mud remover, fully mix and obtain oil-field water biological treatment agent containing oilfield sewage, potassium permanganate, potassium bichromate and the water of origin denitrifying bacterium microorganism and nitrobacteria microorganism.
two of technical scheme of the present invention realizes by following measures: the preparation method of above-mentioned oil-field water biological treatment agent is for by the denitrification nitrobacteria bacterium liquid of aequum, nitrate, nitrite, double quaternary ammonium salt type adhesive mud remover, fully mix and obtain oil-field water biological treatment agent containing oilfield sewage, potassium permanganate, potassium bichromate and the water of origin denitrifying bacterium microorganism and nitrobacteria microorganism.
three of technical scheme of the present invention realizes by following measures: the using method of above-mentioned oil-field water biological treatment agent, carry out as follows: by the injection speed of 5 ml/min to 70ml/min, in the oilfield sewage containing origin denitrifying bacterium microorganism and nitrobacteria microorganism, inject oil-field water biological treatment agent, in monitoring the oilfield sewage of noting oil-field water biological treatment agent, the stable content of sulphate reducing bacteria maintains 25/ml and following and reach more than 3 days, selects intermittently to inject; When in monitoring the oilfield sewage of noting oil-field water biological treatment agent, the content of sulphate reducing bacteria is greater than 25/ml, by the injection speed of 5 ml/min to 70ml/min, in oilfield sewage, inject continuously oil-field water biological treatment agent immediately, until note the stable content of sulphate reducing bacteria in the oilfield sewage of oil-field water biological treatment agent, maintained 25/ml and following and reach more than 3 days, 3 days to 30 days is one-period.
the further optimization and/or improvements to three of foregoing invention technical scheme below:
above-mentioned while injecting oil-field water biological treatment agent in the oilfield sewage to containing origin denitrifying bacterium microorganism and nitrobacteria microorganism, select content of sulfate reducing bacteria in this oilfield sewage to be less than or equal to 10
6
the position of individual/ml is that optimised process point injects oil-field water biological treatment agent.
the present invention adopts oilfield sewage preparation oil-field water biological treatment agent, can give full play to the rich and effectiveness of indigenous beneficial microorganism, make it to compete with greater advantage and residual sulfuric acid salt reducing bacteria, thereby the active and growth of inhibiting sulfate reduction bacterium comprehensively, control the generation of hydrogen sulfide, growing environment and change corrosion development ways by inhibiting sulfate reduction bacterium fundamentally reduce the secondary hydrogen sulfide problem being caused by sulphate reducing bacteria, can avoid increasing factor and the inhibition cost of oil field corrosion simultaneously.
Embodiment
the present invention is not subject to the restriction of following embodiment, can determine concrete embodiment according to technical scheme of the present invention and practical situation.The water of mentioning in the present invention is tap water.
below in conjunction with embodiment, the invention will be further described:
embodiment 1, and this oil-field water biological treatment agent by weight percentage ratio meter raw material contains 0.1% to 5% denitrification nitrobacteria bacterium liquid, 0.05% to 0.5% nitrate, 0.05% to 0.5% nitrite, 0.001% to 0.01% double quaternary ammonium salt type adhesive mud remover, 5 * 10
-7
% to 1 * 10
-6
the potassium permanganate of %, 1 * 10
-5
% to 2 * 10
-5
the oilfield sewage containing origin denitrifying bacterium microorganism and nitrobacteria microorganism of the potassium bichromate of % and surplus.Adopt containing the oilfield sewage of origin denitrifying bacterium microorganism and nitrobacteria microorganism and cultivate and prepare oil field biological treatment agent, containing own contained mineral composition in the oilfield sewage of origin denitrifying bacterium microorganism and nitrobacteria microorganism, can make up on the one hand the deficiency of other nutrition compositions in the biological treatment agent of oil field, be beneficial to the advantage propagation of origin denitrifying bacterium microorganism and nitrobacteria microorganism; Can allow on the one hand origin denitrifying bacterium microorganism and nitrobacteria microorganism be able to domestication breeding fast, be beneficial to the practical application of later stage oil field biological treatment agent.
embodiment 2, and this oil-field water biological treatment agent by weight percentage ratio meter raw material contains 0.1% or 5% denitrification nitrobacteria bacterium liquid, 0.05% or 0.5% nitrate, 0.05% or 0.5% nitrite, 0.001% or 0.01% double quaternary ammonium salt type adhesive mud remover, 5 * 10
-7
% or 1 * 10
-6
the potassium permanganate of %, 1 * 10
-5
% or 2 * 10
-5
the oilfield sewage containing origin denitrifying bacterium microorganism and nitrobacteria microorganism of the potassium bichromate of % and surplus.
embodiment 3, as above-described embodiment preferably, the origin denitrifying bacterium microorganism of denitrification nitrobacteria bacterium liquid in oilfield sewage and nitrobacteria microorganism enlarged culturing and obtain, wherein, denitrification nitrobacteria bacterium liquid obtains as follows: count by weight, by the nitrate of 0.1 part to 0.5 part, the nitrite of 0.1 part to 0.5 part, after the oilfield sewage containing origin denitrifying bacterium microorganism and nitrobacteria microorganism of the double quaternary ammonium salt type adhesive mud remover of 0.001 part to 0.01 part and 98.99 parts to 99.8 parts fully mixes, in airtight container, pH is 7 to 8, temperature is under 25 ℃ to 35 ℃ conditions, to cultivate within 3 days to 15 days, to obtain denitrification nitrobacteria bacterium liquid.Adopt containing the oilfield sewage of origin denitrifying bacterium microorganism and nitrobacteria microorganism and cultivate and prepare denitrification nitrobacteria bacterium liquid, in one side water, contained mineral composition own can make up the deficiency of other nutrition compositions in denitrification nitrobacteria bacterium liquid, is beneficial to the advantage propagation of origin denitrifying bacterium microorganism and nitrobacteria microorganism; Can allow on the one hand origin denitrifying bacterium microorganism and nitrobacteria microorganism be able to domestication breeding fast.
embodiment 4, as above-described embodiment preferably, oilfield sewage containing origin denitrifying bacterium microorganism and nitrobacteria microorganism is the oilfield sewage that common oil field extracted water technique or water injection technology any point are obtained, containing oleaginousness in the oilfield sewage of origin denitrifying bacterium microorganism and nitrobacteria microorganism between 0mg/L to 500mg/L, containing origin denitrifying bacterium microorganism and nitrobacteria microorganism total amount minimum be 100/more than ml.In this oil-field water biological treatment agent, the concentration range of each component is mainly that foundation is 10 to content of sulfate reducing bacteria
2
to 10
8
the many factors such as the inhibition of the oilfield sewage of individual/ml and economy are determined after considering, in actual production, according to different blocks, geologic condition etc., can suitably adjust this concentration, while specifically implementing, also can in described scope, suitably adjust according to sewage load and re-injection amount.
embodiment 5, as above-described embodiment preferably, nitrate is more than one in SODIUMNITRATE and saltpetre; Or/and nitrite is more than one in Sodium Nitrite and potassium nitrite; Or/and double quaternary ammonium salt type adhesive mud remover is the double quaternary ammonium salt type adhesive mud remover that the model of Xinjiang DeLan Co., Ltd's production is JN-988.
embodiment 6, and this oil-field water biological treatment agent obtains by following preparation method: by the denitrification nitrobacteria bacterium liquid of aequum, nitrate, nitrite, double quaternary ammonium salt type adhesive mud remover, fully mix and obtain oil-field water biological treatment agent containing oilfield sewage, potassium permanganate, potassium bichromate and the water of origin denitrifying bacterium microorganism and nitrobacteria microorganism.
embodiment 7, the using method of this oil-field water biological treatment agent is carried out as follows: by the injection speed of 5 ml/min to 70ml/min, in the oilfield sewage containing origin denitrifying bacterium microorganism and nitrobacteria microorganism, inject oil-field water biological treatment agent, in monitoring the oilfield sewage of noting oil-field water biological treatment agent, the stable content of sulphate reducing bacteria maintains 25/ml and following and reach more than 3 days, selects intermittently to inject; When in monitoring the oilfield sewage of noting oil-field water biological treatment agent, the content of sulphate reducing bacteria is greater than 25/ml, by the injection speed of 5 ml/min to 70ml/min, in oilfield sewage, inject continuously oil-field water biological treatment agent immediately, until note the stable content of sulphate reducing bacteria in the oilfield sewage of oil-field water biological treatment agent, maintained 25/ml and following and reach more than 3 days, 3 days to 30 days is one-period.
embodiment 8, the using method of this oil-field water biological treatment agent is carried out as follows: by the injection speed of 5 ml/min or 70ml/min, in the oilfield sewage containing origin denitrifying bacterium microorganism and nitrobacteria microorganism, inject oil-field water biological treatment agent, in monitoring the oilfield sewage of noting oil-field water biological treatment agent, the stable content of sulphate reducing bacteria maintains 25/ml and following and reach more than 3 days, selects intermittently to inject; When in monitoring the oilfield sewage of noting oil-field water biological treatment agent, the content of sulphate reducing bacteria is greater than 25/ml, by the injection speed of 5 ml/min or 70ml/min, in oilfield sewage, inject continuously oil-field water biological treatment agent immediately, until note the stable content of sulphate reducing bacteria in the oilfield sewage of oil-field water biological treatment agent, maintained 25/ml and following and reach more than 3 days, 3 days or 30 days is one-period.
embodiment 9, as embodiment 7 and embodiment 8 preferably, while injecting oil-field water biological treatment agent in the oilfield sewage to containing origin denitrifying bacterium microorganism and nitrobacteria microorganism, select content of sulfate reducing bacteria in this oilfield sewage to be less than or equal to 10
6
the position of individual/ml is that optimised process point injects oil-field water biological treatment agent.
oil-field water biological treatment agent according to the above embodiment of the present invention is injected to oilfield sewage, and before injection, the sulphate reducing bacteria average content in oilfield sewage is 10
2
to 10
4
individual/ml and average quality concentration above, sulfide are 2.7mg/L to 5.75mg/L, inject after oil-field water biological treatment agent, sulphate reducing bacteria quantity in oilfield sewage on average 10/below ml, meet oil-field water and inject index S Y/T 5329-94(SRB≤25/ml), without sulfide, detect, and on average reach more than 35 days action time.
the present invention adopts oilfield sewage preparation oil-field water biological treatment agent, because the contained mineral composition of oilfield sewage itself can make up the deficiency of other nutrition compositions in biological treatment agent, and without extra introducing, avoids increasing the factor of oil field corrosion and suppresses cost, moreover can give full play on the one hand the rich and effectiveness of indigenous beneficial microorganism, can activate beneficial microorganism as denitrifying bacterium microorganism and nitrobacteria microorganism, allow origin denitrifying bacterium microorganism and nitrobacteria microorganism be able to domestication breeding fast, make it with greater advantage and residual sulfuric acid salt reducing bacteria generation nutrient competition, thereby the active and growth of inhibiting sulfate reduction bacterium comprehensively, control the generation of hydrogen sulfide, on the other hand, due to nitrate, nitrite is lower than vitriol electromotive force, can preferentially obtain electronics, therefore this oil-field water biological treatment agent can make part have the metabolic process generation alienation of the sulphate reducing bacteria of alienation metabolic function, nitrate radical, nitrite anions replacement sulfur acid group is as electron acceptor(EA), thereby avoid producing hydrogen sulfide, the present invention simultaneously also can save a large amount of other costs such as deionized water/softening water, and the synergy of the components such as the micro-potassium bichromate in the present invention, potassium permanganate and double quaternary ammonium salt type adhesive mud remover, the initial content of sulphate reducing bacteria in can fast reducing system, for origin and/or the propagation environment of a comparative advantage is provided with the follow-up denitrifying bacterium microorganism adding of biostats and nitrobacteria microorganism, the oil-field water biological treatment agent obtaining according to the above embodiment of the present invention also can activate the desulfurization microorganism of oil reservoir origin, in its metabolic process, hydrogen sulfide is transformed and removed, reduce the etching problem that sulfonium ion brings, therefore, change microorganism ecological environment and produce or utilize microbial metabolism to transform hydrogen sulfide to control hydrogen sulfide, can realize treating both principal and secondary aspect of disease to oil field sulfate reductive bacterium and secondary hydrogen sulfide problem, moreover raw materials used in the present invention is all commercially produced products, raw material is cheap and easy to get, and resultant of reaction is water-soluble products, can not have a negative impact to crude production, and preparation technology is simple, easy to implement for this oil-field water biological treatment agent, under the prerequisite of assurance effective concentration, about 3 days, can take effect, and reach action time more than 35 days, involve scope wide, belong to environmentally friendly biological treatment agent.Therefore, the present invention fundamentally reduces by growing environment and the change corrosion development ways of inhibiting sulfate reduction bacterium the secondary hydrogen sulfide problem being caused by sulphate reducing bacteria.
above technical characterictic has formed embodiments of the invention, and it has stronger adaptability and implementation result, can increase and decrease according to actual needs non-essential technical characterictic, meets the demand of different situations.
Claims (9)
1. an oil-field water biological treatment agent, is characterized in that percentage ratio meter raw material contains 0.1% to 5% denitrification nitrobacteria bacterium liquid, 0.05% to 0.5% nitrate, 0.05% to 0.5% nitrite, 0.001% to 0.01% double quaternary ammonium salt type adhesive mud remover, 5 * 10 by weight
-7% to 1 * 10
-6the potassium permanganate of %, 1 * 10
-5% to 2 * 10
-5the oilfield sewage containing origin denitrifying bacterium microorganism and nitrobacteria microorganism of the potassium bichromate of % and surplus.
2. oil-field water biological treatment agent according to claim 1, it is characterized in that the origin denitrifying bacterium microorganism of denitrification nitrobacteria bacterium liquid in oilfield sewage and nitrobacteria microorganism enlarged culturing and obtain, wherein, denitrification nitrobacteria bacterium liquid obtains as follows: count by weight, by the nitrate of 0.1 part to 0.5 part, the nitrite of 0.1 part to 0.5 part, after the oilfield sewage containing origin denitrifying bacterium microorganism and nitrobacteria microorganism of the double quaternary ammonium salt type adhesive mud remover of 0.001 part to 0.01 part and 98.99 parts to 99.8 parts fully mixes, in airtight container, pH is 7 to 8, temperature is under 25 ℃ to 35 ℃ conditions, to cultivate within 3 days to 15 days, to obtain denitrification nitrobacteria bacterium liquid.
3. oil-field water biological treatment agent according to claim 1 and 2, it is characterized in that the oilfield sewage containing origin denitrifying bacterium microorganism and nitrobacteria microorganism is the oilfield sewage that common oil field extracted water technique or water injection technology any point are obtained, containing oleaginousness in the oilfield sewage of origin denitrifying bacterium microorganism and nitrobacteria microorganism between 0mg/L to 500mg/L, containing origin denitrifying bacterium microorganism and nitrobacteria microorganism total amount minimum be 100/more than ml.
4. oil-field water biological treatment agent according to claim 1 and 2, is characterized in that nitrate is more than one in SODIUMNITRATE and saltpetre; Or/and nitrite is more than one in Sodium Nitrite and potassium nitrite; Or/and double quaternary ammonium salt type adhesive mud remover is the double quaternary ammonium salt type adhesive mud remover that the model of Xinjiang DeLan Co., Ltd's production is JN-988.
5. oil-field water biological treatment agent according to claim 3, is characterized in that nitrate is more than one in SODIUMNITRATE and saltpetre; Or/and nitrite is more than one in Sodium Nitrite and potassium nitrite; Or/and double quaternary ammonium salt type adhesive mud remover is the double quaternary ammonium salt type adhesive mud remover that the model of Xinjiang DeLan Co., Ltd's production is JN-988.
6. according to the oil-field water biological treatment agent described in claim 1 or 2 or 3 or 4 or 5, it is characterized in that obtaining as follows: by the denitrification nitrobacteria bacterium liquid of aequum, nitrate, nitrite, double quaternary ammonium salt type adhesive mud remover, fully mix and obtain oil-field water biological treatment agent containing oilfield sewage, potassium permanganate, potassium bichromate and the water of origin denitrifying bacterium microorganism and nitrobacteria microorganism.
7. according to a preparation method for oil-field water biological treatment agent described in claim 1 or 2 or 3 or 4 or 5 or 6, it is characterized in that the method is by the denitrification nitrobacteria bacterium liquid of aequum, nitrate, nitrite, double quaternary ammonium salt type adhesive mud remover, containing oilfield sewage, potassium permanganate, potassium bichromate and the water of origin denitrifying bacterium microorganism and nitrobacteria microorganism, fully mixes and obtain oil-field water biological treatment agent.
8. a use is according to the using method of oil-field water biological treatment agent described in claim 1 or 2 or 3 or 4 or 5 or 6, it is characterized in that carrying out as follows: by the injection speed of 5 ml/min to 70ml/min, in the oilfield sewage containing origin denitrifying bacterium microorganism and nitrobacteria microorganism, inject oil-field water biological treatment agent, in monitoring the oilfield sewage of noting oil-field water biological treatment agent, the stable content of sulphate reducing bacteria maintains 25/ml and following and reach more than 3 days, selects intermittently to inject; When in monitoring the oilfield sewage of noting oil-field water biological treatment agent, the content of sulphate reducing bacteria is greater than 25/ml, by the injection speed of 5 ml/min to 70ml/min, in oilfield sewage, inject continuously oil-field water biological treatment agent immediately, until note the stable content of sulphate reducing bacteria in the oilfield sewage of oil-field water biological treatment agent, maintained 25/ml and following and reach more than 3 days, 3 days to 30 days is one-period.
9. the using method of oil-field water biological treatment agent according to claim 8, while it is characterized in that injecting oil-field water biological treatment agent in the oilfield sewage to containing origin denitrifying bacterium microorganism and nitrobacteria microorganism, select content of sulfate reducing bacteria in this oilfield sewage to be less than or equal to 10
6the position of individual/ml is that optimised process point injects oil-field water biological treatment agent.
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