CN103666426B - Oil field water biological treatment agent and preparation method thereof and using method - Google Patents

Oil field water biological treatment agent and preparation method thereof and using method Download PDF

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CN103666426B
CN103666426B CN201310570337.1A CN201310570337A CN103666426B CN 103666426 B CN103666426 B CN 103666426B CN 201310570337 A CN201310570337 A CN 201310570337A CN 103666426 B CN103666426 B CN 103666426B
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oil field
treatment agent
biological treatment
microorganism
nitrobacteria
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CN103666426A (en
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聂春梅
方新湘
陈爱华
赵燕
王传萍
朱海霞
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JINSHAN PETROCHEMICAL CO Ltd KELAMYI CITY
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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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    • 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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    • C09K8/52—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
    • C09K8/528—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning inorganic depositions, e.g. sulfates or carbonates
    • C09K8/532—Sulfur
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    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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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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    • C09K2208/20—Hydrogen sulfide elimination

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Abstract

<b>the present invention relates to sewage-treating agent technical field, be a kind of Oil field water biological treatment agent and preparation method thereof and using method,</b><b>this Oil field water biological treatment agent obtains by following preparation method, the desired amount of denitrification nitrobacteria bacterium solution, nitrate, nitrite, double quaternary ammonium salt type adhesive mud remover, oilfield sewage, potassium permanganate, potassium dichromate and water is sufficiently mixed and uniformly namely obtains Oil field water biological treatment agent。The present invention adopts oilfield sewage preparation Oil field water biological treatment agent,</b><b>beneficial microorganism is rich and effectiveness can to give full play to original inhabitants,</b><b>so as to compete with greater advantage and residual sulfuric acid salt reducing bacteria, thus the activity of comprehensive inhibiting sulfate reduction bacterium and growth, control the generation of hydrogen sulfide, the secondary hydrogen sulfide problem caused by sulfate reducting bacteria is fundamentally reduced by the growing environment of inhibiting sulfate reduction bacterium and change corrosion development ways, simultaneously can</b><b>avoid increasing the factor of oil field corrosion and suppressing cost</b><b>。</b>

Description

Oil field water biological treatment agent and preparation method thereof and using method
Technical field
The present invention relates to sewage-treating agent technical field, be a kind of Oil field water biological treatment agent and preparation method thereof and using method。
Background technology
In the oil industry, microorganism the ground caused and underground installation burn into oil reservoirs souring and sulphide staining problem are very severe, have had resulted in the problems such as serious economy, environment and safety in production。In flood pattern, the amount reproduction of sulfate reducting bacteria is the main cause causing this harm。The Main Means of oil field preventing and treating sulfate reducting bacteria is to add substantial amounts of chemical bactericide; but owing to sulfate reducting bacteria often coexists in be protected in the polysaccharide gum biomembrane that microorganism produces with other microorganisms; antibacterial not easily penetrates; and it is in the reproducibility environment of hydrogen sulfide so that general oxidative bactericide is difficult to play effective bactericidal effect。Biomembranous existence, makes germicidal efficiency reduce, even lose efficacy, to such an extent as to produces fastbacteria。Therefore, using 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 intended prevention effect。Furthermore, it is contemplated that the environment that utilizes of oil field water is dynamic, bacterial reproduction is fission process, and directly sterilization actually " is cured the symptoms, not the disease ", it is difficult to permanently effective。The Chinese patent literature that publication number is CN101336642B discloses a kind of inhibitor preventing sulfate reducing bacteria corrosion, and the weight percentage composition of its described inhibitor consists of: content is reduction (H00Bt) C of 0.05% 7 H 5 N 3 O 2 Aqueous solution 13.5% to 18%, magnesium sulfate MgSO 4· 7H 2 O2% to 5%, sodium sulfate 1.5% to 4.5%, yeast extract 0.05% to 0.2%, hydrogen sulfate dipotassium 0.5% to 2%, vitamin C 0.05% to 0.5% and water。Prevent in the process of sulfate reducting bacteria at oil well, when 0.05% to 0.1% dosage, make in system the content of sulfate reducting bacteria less than 25/ml。The Chinese patent literature that publication number is CN1583177A discloses a kind of method for disinfection controlling oil field sulfate reductive bacterium growth corrosion, and described is lower than sulfate electromotive force, can preferentially obtain electronics, reduces S 2- The antibacterial of growing amount is nitrate or the compound of nitrate and quaternary ammonium salt antibacterial。It is filled into stratum, by the growing environment of inhibiting sulfate reduction bacterium and change corrosion development ways thus reaching to reduce the purpose of the etching extent that sulfate reducting bacteria causes with injecting water。Publication number is Chinese patent literature microbial bacterial agent disclosing a kind of sulfate reducing bacteria resisting of CN101235359A and preparation method thereof。Described microbial bacterial agent is to secrete one or more in antibiotic antibacterial and slime bacteria, streptomycete and bacillus cereus, forms single or mixing bacterium solution product through cultivating, or forms single or mixed fermentation liquid after fermentation and extract concentrated solution product。This microbial bacterial agent can suppress the growth of noxious bacteria in film dirt completely, can reduce the use of chemical agent, is beneficial to the protection of ecological environment, and preparation technology is simple, it is easy to implements。Publication number is the ecological control method that the Chinese patent literature of CN101313681A discloses sulfate reducing bacteria activity in a kind of oil field ground water and the inhibitor used。Six kinds of denitrification nitrobacterias are mixed amplification culture by described inhibitor under the culture medium specified, and the concentration obtaining bacterium is 10 5 To 10 9 The nitrated bacterium solution of denitrification of individual/ml, then presses mass fraction and prepares than by collaborative inhibiting substances (ammonium molybdate, sodium molybdate or the copper nitrate) mixing of the nitrated bacterium solution of denitrification of 10 parts to 20 parts, the nutrient (sodium nitrate, potassium nitrate or sodium nitrite) of 0.01 part to 0.08 part and 0.01 part to 0.05 part。Inhibitor is added by the mol ratio of sulfate radical in oil field ground water water body Yu nitrate anion 1:0.8 to 1:6。The efficiency of this invention inhibiting sulfate reduction bacterium is high, it is to avoid use antibacterial, safety and environmental protection。The Chinese patent literature that publication number is CN101746897B discloses a kind of nutrient suppressing sulfate reducting bacteria in the water of oil field and application thereof。Described nutrient is by mass percentage by cane molasses or beet molasses: 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 sodium nitrate: 0.05% to 49%, and/or diammonium phosphate: 0.05% to 1%, and/or disodium hydrogen phosphate: 0.05% to 1.2%, and/or dipotassium hydrogen phosphate 0.5% to 2%, and/or potassium dihydrogen phosphate 0.05% to 1.5%。Taking the nutrient injecting water weight 0.5% to 5%, inject water or oil field ground water dissolution with construction, pump truck by water injection well, nutritional solution is clamp-oned stratum, after 16 hours to 52 days, sulfate reducting bacteria is 0/ml to 100/ml, incremental oil production 10% to 30%。The Chinese patent literature that publication number is CN100465267C discloses a kind of microorganism formulation controlling oil field sulfate reductive bacterium harm and application thereof。Described microorganism formulation is added in pending water, and dosage accounts for the ratio processing water respectively and is: the denitrifying bacterium culture (pseudomonas putida or thiobacillus denitrificans) of cultivation, (5 to 100) × 10 under specifying culture medium of 0.1 part to 10 parts -3 The nutrient of part and (1 to 200) × 10 -6 The collaborative nutrient of part。This invention, by adding microorganism formulation in system, makes the growth of denitrifying bacteria Competitive assays SRB, stops SRB to produce hydrogen sulfide, and removes the sulfide existed in system。Meanwhile, the metabolite (N that microorganism produces 2 With surfactant etc.) also improve oil well recovery ratio。The Chinese patent literature that publication number is CN100508758C discloses a kind of method suppressing sulfate reducing bacteria activity in oil field ground water and the suppression medicament used。Described suppress medicament by mass fraction than by the sodium nitrate of 100 parts, the sodium nitrite of 2 parts to 20 parts, the cobalt nitrate of 0.2 part to 0.6 part, the nickel nitrate of 0.2 part to 0.6 part, the copper nitrate of 0.2 part to 0.6 part and 0.2 part to 0.6 part sodium molybdate form。Add inhibitor mother solution by the mol ratio of sulfate radical in water body Yu nitrate anion 1:0.5 to 1:5, the activity of sulfate reducting bacteria in oil field ground water can be suppressed, it is possible to decrease S in oil field ground water 2- Concentration reaches more than 85%。The Chinese patent literature that publication number is CN102090420A discloses a kind of crude oil gathering system sulfate reducting bacteria secondary hydrogen sulfide biological inhibition method of generation。The biostatic agent suppressing individual well is made up of 50mg/l sodium nitrite, 20mg/l sodium borate；The biostatic agent suppressing petroleum transferring station is made up of 40mg/l to 60mg/l sodium nitrite, the humic acids of 25mg/l, 10mg/l to 20mg/l sodium borate, 20mg/l to 30mg/l sodium hydroxide electrolyte；The biological preparation suppressing multi-purpose station is made up of 40mg/l to 60mg/l sodium nitrite, the humic acids of 25mg/l, 10mg/l to 20mg/l sodium borate, 20mg/l to 30mg/l sodium hydroxide electrolyte, 95mg/l glutaraldehyde antibacterial。But, what above-mentioned prior art was recorded suppresses the method for sulfate reducting bacteria in the water of oil field, have the disadvantage that 1, microorganism in introduced microbial bacteria liquid product, the part beneficial microbe simply cultivated through special domestication and obtain, truly do not play the indigenous beneficial microorganism effect of abundant species, it is suppressed that effect does not reach expection。2, most suppression does not account for the contained mineral of oilfield sewage self and zwitterion value, the addition of sulfate, chlorate etc. in the method for sulfate reducting bacteria in the water of oil field, not only adds suppression cost, and enhances 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, overcoming the deficiency of above-mentioned prior art, it can effectively solve to suppress the problem that the indigenous beneficial microorganism effect that the microorganism in the microbial bacteria liquid product that in the water of oil field, sulfate reducting bacteria is introduced does not truly play abundant species causes inhibition undesirable and in the water of existing suppression oil field, the method for sulfate reducting bacteria suppresses cost height, even enhances the factor that oil field is corroded in prior art。
One of technical scheme is realized by following measures: a kind of Oil field water biological treatment agent, its percentage raw material contain 0.1% to 5% denitrification nitrobacteria bacterium solution, 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 potassium dichromate of % and the oilfield sewage containing origin denitrifying bacteria microorganism and nitrobacteria microorganism of surplus。
Further optimization and/or improvements to foregoing invention technical scheme one of are presented herein below:
Above-mentioned denitrification nitrobacteria bacterium solution is obtained by the origin denitrifying bacteria microorganism in oilfield sewage and nitrobacteria microorganism amplification culture, wherein, denitrification nitrobacteria bacterium solution 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 bacteria 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 is sufficiently mixed, in airtight container, pH is 7 to 8, temperature is cultivate under 25 DEG C to 35 DEG C conditions to obtain denitrification nitrobacteria bacterium solution in 3 days to 15 days。
The above-mentioned oilfield sewage containing origin denitrifying bacteria microorganism and nitrobacteria microorganism is common oil field extracted water technique or the oilfield sewage of water injection technology any point acquisition, and in the oilfield sewage containing origin denitrifying bacteria microorganism and nitrobacteria microorganism, oil content is minimum between 0mg/L to 500mg/L, containing origin denitrifying bacteria microorganism and nitrobacteria microorganism total amount is 100/more than ml。
Above-mentioned nitrate is more than one in sodium nitrate and potassium nitrate；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 model is JN-988 that Xinjiang DeLan Co., Ltd produces。
Above-mentioned Oil field water biological treatment agent obtains as follows: by the desired amount of denitrification nitrobacteria bacterium solution, nitrate, nitrite, double quaternary ammonium salt type adhesive mud remover, is sufficiently mixed containing origin denitrifying bacteria microorganism and the oilfield sewage of nitrobacteria microorganism, potassium permanganate, potassium dichromate and water and uniformly namely obtains Oil field water biological treatment agent。
The two of technical scheme are realized by following measures: the preparation method of above-mentioned Oil field water biological treatment agent is by the desired amount of denitrification nitrobacteria bacterium solution, nitrate, nitrite, double quaternary ammonium salt type adhesive mud remover, is sufficiently mixed containing origin denitrifying bacteria microorganism and the oilfield sewage of nitrobacteria microorganism, potassium permanganate, potassium dichromate and water and uniformly namely obtains Oil field water biological treatment agent。
The three of technical scheme are realized by following measures: the using method of above-mentioned Oil field water biological treatment agent, carry out as follows: in the oilfield sewage containing origin denitrifying bacteria microorganism and nitrobacteria microorganism, inject Oil field water biological treatment agent by the injection rate of 5ml/min to 70ml/min, maintain 25/ml and following and reach more than 3 days when monitoring the stable content of sulfate reducting bacteria in the oilfield sewage noting Oil field water biological treatment agent, select to be intermittently injecting；When monitoring that in the oilfield sewage noting Oil field water biological treatment agent, the content of sulfate reducting bacteria is more than 25/ml, in oilfield sewage, it is continuously injected into Oil field water biological treatment agent immediately by the injection rate of 5ml/min to 70ml/min, until noting the stable content of sulfate reducting bacteria in the oilfield sewage of Oil field water biological treatment agent to maintain 25/ml and following and reach more than 3 days, it it within 3 days to 30 days, it is a cycle。
Be presented herein below to foregoing invention technical scheme three further optimization and/or improvements:
Above-mentioned when injecting Oil field water biological treatment agent in the oilfield sewage containing origin denitrifying bacteria microorganism and nitrobacteria microorganism, select in this oilfield sewage content of sulfate reducing bacteria 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, beneficial microorganism is rich and effectiveness can to give full play to original inhabitants, so as to compete with greater advantage and residual sulfuric acid salt reducing bacteria, thus the activity of comprehensive inhibiting sulfate reduction bacterium and growth, control the generation of hydrogen sulfide, corrode development ways by the growing environment of inhibiting sulfate reduction bacterium and change and fundamentally reduce the secondary hydrogen sulfide problem caused by sulfate reducting bacteria, simultaneously it can be avoided that increase factor and the suppression cost of oil field corrosion。
Detailed description of the invention
The present invention, not by the restriction of following embodiment, can determine specific embodiment according to technical scheme and practical situation。The water being previously mentioned in the present invention is tap water。
Below in conjunction with embodiment, the invention will be further described:
Embodiment 1, this Oil field water biological treatment agent percentage raw material contain 0.1% to 5% denitrification nitrobacteria bacterium solution, 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 potassium dichromate of % and the oilfield sewage containing origin denitrifying bacteria microorganism and nitrobacteria microorganism of surplus。The oilfield sewage containing origin denitrifying bacteria microorganism and nitrobacteria microorganism is adopted to cultivate and prepare oil field biological treatment agent, in oilfield sewage containing origin denitrifying bacteria microorganism and nitrobacteria microorganism, contained mineral composition itself can make up the deficiency of other nutrition compositions in the biological treatment agent of oil field on the one hand, is beneficial to the advantage propagation of origin denitrifying bacteria microorganism and nitrobacteria microorganism；Origin denitrifying bacteria microorganism and nitrobacteria microorganism can be allowed quickly to be tamed breeding on the one hand, be beneficial to the practical application of later stage oil field biological treatment agent。
Embodiment 2, this Oil field water biological treatment agent percentage raw material contain 0.1% or 5% denitrification nitrobacteria bacterium solution, 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 potassium dichromate of % and the oilfield sewage containing origin denitrifying bacteria microorganism and nitrobacteria microorganism of surplus。
Embodiment 3, preferred as above-described embodiment, denitrification nitrobacteria bacterium solution is obtained by the origin denitrifying bacteria microorganism in oilfield sewage and nitrobacteria microorganism amplification culture, wherein, denitrification nitrobacteria bacterium solution 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 bacteria 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 is sufficiently mixed, in airtight container, pH is 7 to 8, temperature is cultivate under 25 DEG C to 35 DEG C conditions to obtain denitrification nitrobacteria bacterium solution in 3 days to 15 days。The oilfield sewage containing origin denitrifying bacteria microorganism and nitrobacteria microorganism is adopted to cultivate and prepare denitrification nitrobacteria bacterium solution, in water, contained mineral composition itself can make up the deficiency of other nutrition compositions in denitrification nitrobacteria bacterium solution on the one hand, is beneficial to the advantage propagation of origin denitrifying bacteria microorganism and nitrobacteria microorganism；Origin denitrifying bacteria microorganism and nitrobacteria microorganism can be allowed quickly to be tamed breeding on the one hand。
Embodiment 4, preferred as above-described embodiment, oilfield sewage containing origin denitrifying bacteria microorganism and nitrobacteria microorganism is common oil field extracted water technique or the oilfield sewage of water injection technology any point acquisition, and in the oilfield sewage containing origin denitrifying bacteria microorganism and nitrobacteria microorganism, oil content is minimum between 0mg/L to 500mg/L, containing origin denitrifying bacteria microorganism and nitrobacteria microorganism total amount is 100/more than ml。In this Oil field water biological treatment agent, content of sulfate reducing bacteria is 10 by the concentration range of each component mainly foundation 2 To 10 8 Determine after the many factors such as the inhibition of the oilfield sewage of individual/ml and economy consider, this concentration can suitably be adjusted according to different blocks, geological conditions etc. by actual production, also suitably can adjust in described scope according to sewage load and re-injection amount when being embodied as。
Embodiment 5, preferred as above-described embodiment, nitrate is more than one in sodium nitrate and potassium nitrate；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 model is JN-988 that Xinjiang DeLan Co., Ltd produces。
Embodiment 6, this Oil field water biological treatment agent obtains by following preparation method: by the desired amount of denitrification nitrobacteria bacterium solution, nitrate, nitrite, double quaternary ammonium salt type adhesive mud remover, is sufficiently mixed containing origin denitrifying bacteria microorganism and the oilfield sewage of nitrobacteria microorganism, potassium permanganate, potassium dichromate and water and uniformly namely obtains Oil field water biological treatment agent。
Embodiment 7, the using method of this Oil field water biological treatment agent carries out as follows: inject Oil field water biological treatment agent by the injection rate of 5ml/min to 70ml/min in the oilfield sewage containing origin denitrifying bacteria microorganism and nitrobacteria microorganism, maintain 25/ml and following and reach more than 3 days when monitoring the stable content of sulfate reducting bacteria in the oilfield sewage noting Oil field water biological treatment agent, select to be intermittently injecting；When monitoring that in the oilfield sewage noting Oil field water biological treatment agent, the content of sulfate reducting bacteria is more than 25/ml, in oilfield sewage, it is continuously injected into Oil field water biological treatment agent immediately by the injection rate of 5ml/min to 70ml/min, until noting the stable content of sulfate reducting bacteria in the oilfield sewage of Oil field water biological treatment agent to maintain 25/ml and following and reach more than 3 days, it it within 3 days to 30 days, it is a cycle。
Embodiment 8, the using method of this Oil field water biological treatment agent carries out as follows: inject Oil field water biological treatment agent by the injection rate of 5ml/min or 70ml/min in the oilfield sewage containing origin denitrifying bacteria microorganism and nitrobacteria microorganism, maintain 25/ml and following and reach more than 3 days when monitoring the stable content of sulfate reducting bacteria in the oilfield sewage noting Oil field water biological treatment agent, select to be intermittently injecting；When monitoring that in the oilfield sewage noting Oil field water biological treatment agent, the content of sulfate reducting bacteria is more than 25/ml, in oilfield sewage, it is continuously injected into Oil field water biological treatment agent immediately by the injection rate of 5ml/min or 70ml/min, until noting the stable content of sulfate reducting bacteria in the oilfield sewage of Oil field water biological treatment agent to maintain 25/ml and following and reach more than 3 days, it it within 3 days or 30 days, it is a cycle。
Embodiment 9, preferred as embodiment 7 and embodiment 8, when injecting Oil field water biological treatment agent in the oilfield sewage containing origin denitrifying bacteria microorganism and nitrobacteria microorganism, select in this oilfield sewage content of sulfate reducing bacteria 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 being injected in oilfield sewage, before injection, the sulfate reducting 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, after injecting Oil field water biological treatment agent, sulfate reducting bacteria quantity in oilfield sewage is on average at 10/below ml, meet oil field water and inject index S Y/T5329-94(SRB≤25/ml), detect without sulfide, and action time is on average up to more than 35 days。
The present invention adopts oilfield sewage preparation Oil field water biological treatment agent, and the mineral composition contained due to oilfield sewage itself can make up the deficiency of other nutrition compositions in biological treatment agent, without additionally introducing, it is to avoid increases the factor of oil field corrosion and suppresses cost；Moreover can give full play on the one hand that original inhabitants' beneficial microorganism is rich and effectiveness, beneficial microbe such as denitrifying bacteria microorganism and nitrobacteria microorganism can be activated, origin denitrifying bacteria microorganism and nitrobacteria microorganism is allowed quickly to be tamed breeding, so as to greater advantage and residual sulfuric acid salt reducing bacteria generation nutrient competition, thus the activity of comprehensive inhibiting sulfate reduction bacterium and growth, control the generation of hydrogen sulfide, on the other hand, due to nitrate, nitrite is lower than sulfate electromotive force, can preferentially obtain electronics, therefore this Oil field water biological treatment agent can make part have the metabolic process generation alienation of sulfate reducting bacteria of alienation metabolic function, nitrate anion, nitrite anions replacement sulfur acid group is as electron acceptor, thus avoiding producing hydrogen sulfide；The present invention also can save other costs such as substantial amounts of deionized water/softening water simultaneously；And the synergism of the components such as trace potassium dichromate in the present invention, potassium permanganate and double quaternary ammonium salt type adhesive mud remover, can the initial content of sulfate reducting bacteria in quickly reduction system, for origin and/or the propagation environment providing a relative potence with the denitrifying bacteria microorganism of the follow-up addition of biostatic agent and nitrobacteria microorganism；The Oil field water biological treatment agent obtained according to the above embodiment of the present invention also can activate the desulfurization microorganism of oil reservoir origin, hydrogen sulfide is converted elimination by its metabolic process, reduce the etching problem that sulphion brings, therefore, change microorganism ecological environment to control hydrogen sulfide generation or to utilize microbial metabolism to convert hydrogen sulfide, it is possible to achieve the treating both the principal and secondary aspects of a disease to oil field sulfate reductive bacterium and secondary hydrogen sulfide problem；Furthermore, raw materials used in the present invention is all commercially produced product, and raw material is cheap and easy to get, and reaction product is water-soluble products, will not crude oil production be had a negative impact；And preparation technology is simple for this Oil field water biological treatment agent, it is easy to implement, under the premise ensureing valid density, within about 3 days, can take effect, and action time was up to 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 caused by sulfate reducting bacteria。
Above technical characteristic constitutes embodiments of the invention, and it has stronger adaptability and implementation result, can increase and decrease non-essential technical characteristic according to actual needs, meet the demand of different situations。

Claims (8)

1. an Oil field water biological treatment agent, it is characterised in that percentage raw material contain 0.1% to 5% denitrification nitrobacteria bacterium solution, 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 × 10-6The potassium permanganate of %, 1 × 10-5% to 2 × 10-5The potassium dichromate of % and the oilfield sewage containing origin denitrifying bacteria microorganism and nitrobacteria microorganism of surplus；This denitrification nitrobacteria bacterium solution is obtained by the origin denitrifying bacteria microorganism in oilfield sewage and nitrobacteria microorganism amplification culture, wherein, this denitrification nitrobacteria bacterium solution 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 bacteria 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 is sufficiently mixed, in airtight container, pH is 7 to 8, temperature is cultivate under 25 DEG C to 35 DEG C conditions to obtain denitrification nitrobacteria bacterium solution in 3 days to 15 days。
2. Oil field water biological treatment agent according to claim 1, it is characterized in that containing the oilfield sewage of origin denitrifying bacteria microorganism and nitrobacteria microorganism the oilfield sewage being common oil field extracted water technique or the acquisition of water injection technology any point, in the oilfield sewage containing origin denitrifying bacteria microorganism and nitrobacteria microorganism, oil content is minimum between 0mg/L to 500mg/L, containing origin denitrifying bacteria microorganism and nitrobacteria microorganism total amount is 100/more than ml。
3. Oil field water biological treatment agent according to claim 1 and 2, it is characterised in that nitrate is more than one in sodium nitrate and potassium nitrate；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 model is JN-988 that Xinjiang DeLan Co., Ltd produces。
4. Oil field water biological treatment agent according to claim 1 and 2, it is characterised in that obtain as follows: by the desired amount of denitrification nitrobacteria bacterium solution, nitrate, nitrite, double quaternary ammonium salt type adhesive mud remover, be sufficiently mixed containing origin denitrifying bacteria microorganism and the oilfield sewage of nitrobacteria microorganism, potassium permanganate, potassium dichromate and water and uniformly namely obtain Oil field water biological treatment agent。
5. Oil field water biological treatment agent according to claim 3, it is characterised in that obtain as follows: by the desired amount of denitrification nitrobacteria bacterium solution, nitrate, nitrite, double quaternary ammonium salt type adhesive mud remover, be sufficiently mixed containing origin denitrifying bacteria microorganism and the oilfield sewage of nitrobacteria microorganism, potassium permanganate, potassium dichromate and water and uniformly namely obtain Oil field water biological treatment agent。
6. the preparation method of Oil field water biological treatment agent according to claim 1 or 2 or 3 or 4 or 5, it is characterised in that the method is by the desired amount of denitrification nitrobacteria bacterium solution, nitrate, nitrite, double quaternary ammonium salt type adhesive mud remover, is sufficiently mixed containing origin denitrifying bacteria microorganism and the oilfield sewage of nitrobacteria microorganism, potassium permanganate, potassium dichromate and water and uniformly namely obtains Oil field water biological treatment agent。
7. one kind uses the using method of Oil field water biological treatment agent according to claim 1 or 2 or 3 or 4 or 5, it is characterized in that carrying out as follows: in the oilfield sewage containing origin denitrifying bacteria microorganism and nitrobacteria microorganism, inject Oil field water biological treatment agent by the injection rate of 5ml/min to 70ml/min, maintain 25/ml and following and reach more than 3 days when monitoring the stable content of sulfate reducting bacteria in the oilfield sewage noting Oil field water biological treatment agent, select to be intermittently injecting；When monitoring that in the oilfield sewage noting Oil field water biological treatment agent, the content of sulfate reducting bacteria is more than 25/ml, in oilfield sewage, it is continuously injected into Oil field water biological treatment agent immediately by the injection rate of 5ml/min to 70ml/min, until noting the stable content of sulfate reducting bacteria in the oilfield sewage of Oil field water biological treatment agent to maintain 25/ml and following and reach more than 3 days, it it within 3 days to 30 days, it is a cycle。
8. the using method of Oil field water biological treatment agent according to claim 7, it is characterized in that, when injecting Oil field water biological treatment agent in the oilfield sewage containing origin denitrifying bacteria microorganism and nitrobacteria microorganism, selecting in this oilfield sewage content of sulfate reducing bacteria less than or equal to 106The position of individual/ml is that optimised process point injects Oil field water biological treatment agent。
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