CN106904749A - A kind of oil field reinjection water treatment bio-stimulant and preparation method thereof - Google Patents
A kind of oil field reinjection water treatment bio-stimulant and preparation method thereof Download PDFInfo
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- CN106904749A CN106904749A CN201710086481.6A CN201710086481A CN106904749A CN 106904749 A CN106904749 A CN 106904749A CN 201710086481 A CN201710086481 A CN 201710086481A CN 106904749 A CN106904749 A CN 106904749A
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- Prior art keywords
- nitrate
- nitrite
- molybdate
- oil field
- denitrifying bacteria
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- C—CHEMISTRY; METALLURGY
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/08—Corrosion inhibition
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/06—Nutrients for stimulating the growth of microorganisms
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- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
Material for water treatment and method are returned the invention provides oil field, is mainly made up of nitrate, nitrite, molybdate, imidazoline inhibitor and denitrifying bacteria.The beneficial effects of the invention are as follows：Sulfate can effectively be replaced as electron acceptor using the mixed liquor injection reservoir of low concentration nitrate mixture, nitrate reductase bacterium (the Nitrate Reducing Bacteria of naturally occurring can be made, abbreviation NRB) number increases and effectively utilizes VFA, so as to suppress and SRB is finally replaced；The technology reaches antibacterial control sulphur, the purpose that burn into improves oil recovery is reduced, so as to reduce pollutional load by activating the amount reproduction of indigenous microorganism in reservoir by being introduced into of a small amount of bio-stimulant.
Description
Technical field
The present invention relates to oil field reinjection water technical field, more particularly to a kind of oil field reinjection water treatment bio-stimulant
And preparation method thereof.
Background technology
Containing hydrogen sulfide formed due to the effect of sulfate reducing bacteria in most of oil reservoirs and oil and gas production system
's.SRB and its produced hydrogen sulfide are a series of main causes for causing oil reservoir development high cost and shop problems, including storage
Layer souring, sulfide corrosion, iron sulfide formation blockage, yield reduction and health, safety and environmental hazard.Give birth in the oil industry
The Problems of Sulfide especially severe of the thing origin cause of formation, has had resulted in serious economic loss, not only increases microbiologically influenced corrosion each
Relevant expense, and biogenic sulfide has serious harm to human health and environment, and its effect includes：Accelerate
Corrosion and device damage, the expense for increasing renewal of the equipment expense, increasing purchase bactericide, due to iron sulfide block reduce yield and
Income, the quality for reducing oil gas product, pollution environment and harmful.
Suppress the breeding of SRB bacterium in filling water.It is oil field reinjection water treatment that rate of corrosion is reduced so as to improve oil recovery
Problem anxious to be resolved in link.At present, the harm that oil field generally controls SRB to cause using chemical bactericide, achieves
Remarkable result, but long-term use bactericide can make bacterial resistance occurred, and dosing is increased, and expense increases, while also giving ring
Bring pollutional load in border.
The content of the invention
Embodiments in accordance with the present invention provide a kind of oil field reinjection water treatment bio-stimulant and its preparation side
Method, solves to be easily caused in oil field reinjection water processing procedure bacterial resistance occurred, and causes environment pollution asking for load
Topic.
According to the first aspect of the invention, there is provided a kind of oil field reinjection water treatment bio-stimulant, mainly by nitre
Hydrochlorate, nitrite, molybdate, imidazoline inhibitor and denitrifying bacteria composition.
It is nitrate according to quality proportioning：Nitrite：Molybdate：Imidazoline inhibitor：Denitrifying bacteria=(10-
30)：(50-80)：(2-5)：(2-5)：The ratio of (2-5) is matched.
Preferably, it is nitrate according to quality proportioning：Nitrite：Molybdate：Imidazoline inhibitor：Denitrifying bacteria=
(15-25)：(60-70)：(3-4)：(3-4)：The ratio of (3-4) is matched.
Preferably, it is nitrate according to quality proportioning：Nitrite：Molybdate：Imidazoline inhibitor：Denitrifying bacteria=
20：65：4：4：4 ratio is matched.
The nitrate is any one in potassium nitrate, sodium nitrate, magnesium nitrate, calcium nitrate, aluminum nitrate, copper nitrate or many
Plant mixing.
The nitrite is in potassium nitrite, natrium nitrosum, magnesium nitrite, calcium nitrite, nitrous acid aluminium, cupric nitrite
Any one or more mixing.
The molybdate is any one in potassium molybdate, sodium molybdate, magnesium molybdate, calcium molybdate, molybdic acid aluminium, copper molybdate or many
Plant mixing.
A kind of preparation method of oil field reinjection water treatment bio-stimulant, including：
A, nitrate, nitrite, molybdate are proportionally added to the water carry out being mixed to form primary mixed liquor；
B, imidazoline inhibitor and denitrifying bacteria are added according to proportioning in primary mixed liquor, and stir to be formed time
Level mixed solution；
C, to clear water is added in secondary mixed solution, until concentration reaches setting value.
In step A, nitrate is added to the water mixed dissolution first, nitrite and molybdate are then added into dissolving again
In liquid and stir.
30 minutes are at least wanted in step A, the step of dissolving, 30 minutes is at least needed the step of assign.
The step of being assigned in step B at least needs 20 minutes.
The beneficial effects of the invention are as follows：Mixed liquor injection reservoir using low concentration nitrate mixture can effectively replace sulphur
Hydrochlorate can make the nitrate reductase bacterium (Nitrate-Reducing Bacteria, abbreviation NRB) of naturally occurring as electron acceptor
Number increases and effectively utilizes VFA, so as to suppress and SRB is finally replaced；The introducing that the technology passes through a small amount of bio-stimulant
The amount reproduction of indigenous microorganism in reservoir can be activated, antibacterial control sulphur is reached, is reduced the mesh that burn into improves oil recovery
, so as to reduce pollutional load.
Specific embodiment
The feature and exemplary embodiment of various aspects of the invention is described more fully below.In following detailed description
In, it is proposed that many details, to provide complete understanding of the present invention.But, to those skilled in the art
It will be apparent that the present invention can be implemented in the case of some details in not needing these details.Of the invention
In description, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection " should be done extensively
Reason and good sense solution, for example, it may be being fixedly connected, or being detachably connected, or is integrally connected；Can be joined directly together,
Can be indirectly connected to by intermediary.For the ordinary skill in the art, visual concrete condition understands above-mentioned art
Language concrete meaning in the present invention.
Embodiment 1, the embodiment of the invention provides a kind of oil field reinjection water treatment bio-stimulant, mainly by nitric acid
Salt, nitrite, molybdate, imidazoline inhibitor and denitrifying bacteria composition, and adjusted according to proportioning shown in table 1 below
Match somebody with somebody.
Table 1
| Title | Unit | Quantity |
| Nitrate | kg | 10 |
| Nitrite | kg | 50 |
| Molybdate | kg | 2 |
| Imidazoline inhibitor | kg | 2 |
| Denitrifying bacteria | kg | 2 |
| Water | kg | 100 |
Embodiment 2, the embodiment of the invention provides a kind of oil field reinjection water treatment bio-stimulant, mainly by nitric acid
Salt, nitrite, molybdate, imidazoline inhibitor and denitrifying bacteria composition, and adjusted according to proportioning shown in table 2 below
Match somebody with somebody.
Table 2
| Title | Unit | Quantity |
| Nitrate | kg | 30 |
| Nitrite | kg | 80 |
| Molybdate | kg | 5 |
| Imidazoline inhibitor | kg | 5 |
| Denitrifying bacteria | kg | 5 |
| Water | kg | 100 |
Embodiment 3, the embodiment of the invention provides a kind of oil field reinjection water treatment bio-stimulant, mainly by nitric acid
Salt, nitrite, molybdate, imidazoline inhibitor and denitrifying bacteria composition, and adjusted according to proportioning shown in table 3 below
Match somebody with somebody.
Table 3
| Title | Unit | Quantity |
| Nitrate | kg | 15 |
| Nitrite | kg | 60 |
| Molybdate | kg | 3 |
| Imidazoline inhibitor | kg | 3 |
| Denitrifying bacteria | kg | 3 |
| Water | kg | 100 |
Embodiment 4, the embodiment of the invention provides a kind of oil field reinjection water treatment bio-stimulant, mainly by nitric acid
Salt, nitrite, molybdate, imidazoline inhibitor and denitrifying bacteria composition, and adjusted according to proportioning shown in table 4 below
Match somebody with somebody.
Table 4
| Title | Unit | Quantity |
| Nitrate | kg | 25 |
| Nitrite | kg | 70 |
| Molybdate | kg | 4 |
| Imidazoline inhibitor | kg | 4 |
| Denitrifying bacteria | kg | 4 |
| Water | kg | 100 |
Embodiment 5, the embodiment of the invention provides a kind of oil field reinjection water treatment bio-stimulant, mainly by nitric acid
Salt, nitrite, molybdate, imidazoline inhibitor and denitrifying bacteria composition, and adjusted according to proportioning shown in table 5 below
Match somebody with somebody.
Table 5
| Title | Unit | Quantity |
| Nitrate | kg | 20 |
| Nitrite | kg | 65 |
| Molybdate | kg | 4 |
| Imidazoline inhibitor | kg | 4 |
| Denitrifying bacteria | kg | 4 |
| Water | kg | 100 |
In above-described embodiment：
The nitrate is any one in potassium nitrate, sodium nitrate, magnesium nitrate, calcium nitrate, aluminum nitrate, copper nitrate or many
Plant mixing.
The nitrite is in potassium nitrite, natrium nitrosum, magnesium nitrite, calcium nitrite, nitrous acid aluminium, cupric nitrite
Any one or more mixing.
The molybdate is any one in potassium molybdate, sodium molybdate, magnesium molybdate, calcium molybdate, molybdic acid aluminium, copper molybdate or many
Plant mixing.
A kind of preparation method of oil field reinjection water treatment bio-stimulant, including：
A, nitrate, nitrite, molybdate are proportionally added to the water carry out being mixed to form primary mixed liquor；
B, imidazoline inhibitor and denitrifying bacteria are added according to proportioning in primary mixed liquor, and stir to be formed time
Level mixed solution；
C, to clear water is added in secondary mixed solution, until concentration reaches setting value.
In step A, nitrate is added to the water mixed dissolution first, nitrite and molybdate are then added into dissolving again
In liquid and stir.
30 minutes are at least wanted in step A, the step of dissolving, 30 minutes is at least needed the step of assign.
The step of being assigned in step B at least needs 20 minutes.
Comparative example 1：Qinghai Oil Field sulfur-bearing recycled produced water treatment high
80~120ppm of sulfide content, rate of corrosion 0.1896mm/a, SRB before Qinghai Oil Field sulfur-bearing recycled produced water treatment high
Bacterium 103~105Individual/mL, NRB bacterium 101Individual/mL, sulfide in sewage content 0ppm, rate of corrosion 0.0105mm/a, SRB after treatment
10~25/mL of bacterium, 104~105/mL of NRB bacterium.
Comparative example 2：Changqing oilfields sulfur-bearing recycled produced water treatment high
200~300ppm of sulfide content before Changqing oilfields sulfur-bearing recycled produced water treatment high, rate of corrosion 0.2735mm/a,
SRB bacterium 104~105Individual/mL, NRB bacterium 101Individual/mL, sulfide in sewage content 0ppm after treatment, rate of corrosion 0.0125mm/a,
10~25/mL of SRB bacterium, 104~105/mL of NRB bacterium.
The beneficial effects of the invention are as follows：Mixed liquor injection reservoir using low concentration nitrate mixture can effectively replace sulphur
Hydrochlorate can make the nitrate reductase bacterium (Nitrate-Reducing Bacteria, abbreviation NRB) of naturally occurring as electron acceptor
Number increases and effectively utilizes VFA, so as to suppress and SRB is finally replaced；The introducing that the technology passes through a small amount of bio-stimulant
The amount reproduction of indigenous microorganism in reservoir can be activated, antibacterial control sulphur is reached, is reduced the mesh that burn into improves oil recovery
, so as to reduce pollutional load.
The present invention can be realized in other specific forms, without deviating from its spirit and essential characteristics.Therefore, current reality
Apply example be all counted as being exemplary rather than in all respects it is limited, the scope of the present invention by appended claims rather than on
Description definition, also, the whole changes fallen into the range of the implication and equivalent of claim are stated so as to all be included in this
Among the scope of invention.Also, the different technologies feature for occurring in different embodiments can be combined, to obtain beneficial effect
Really.Those skilled in the art will be understood that and realize disclosed implementation on the basis of specification and claims are studied
The embodiment of other changes of example.
Claims (10)
1. material for water treatment is returned in oil field, mainly by nitrate, nitrite, molybdate, imidazoline inhibitor and denitrifying bacteria
Composition.
2. treatment material as claimed in claim 1, it is characterised in that according to quality proportioning be nitrate：Nitrite：Molybdic acid
Salt：Imidazoline inhibitor：Denitrifying bacteria=(10-30)：(50-80)：(2-5)：(2-5)：The ratio of (2-5) is matched.
3. treatment material as claimed in claim 2, it is characterised in that according to quality proportioning be nitrate：Nitrite：Molybdic acid
Salt：Imidazoline inhibitor：Denitrifying bacteria=(15-25)：(60-70)：(3-4)：(3-4)：The ratio of (3-4) is matched.
4. treatment material as claimed in claim 3, it is characterised in that according to quality proportioning be nitrate：Nitrite：Molybdic acid
Salt：Imidazoline inhibitor：Denitrifying bacteria=20：65：4：4：4 ratio is matched.
5. the treatment material as described in one of claim 1-4, it is characterised in that the nitrate is potassium nitrate, sodium nitrate, nitre
Any one or more mixing in sour magnesium, calcium nitrate, aluminum nitrate, copper nitrate.
6. the treatment material as described in one of claim 1-4, it is characterised in that the nitrite is potassium nitrite, nitrous
Any one or more mixing in sour sodium, magnesium nitrite, calcium nitrite, nitrous acid aluminium, cupric nitrite.
7. the treatment material as described in one of claim 1-4, it is characterised in that the molybdate is potassium molybdate, sodium molybdate, molybdenum
Any one or more mixing in sour magnesium, calcium molybdate, molybdic acid aluminium, copper molybdate.
8. oil field backwater processing method, including：
A, nitrate, nitrite, molybdate are proportionally added to the water carry out being mixed to form primary mixed liquor；
B, imidazoline inhibitor and denitrifying bacteria are added according to proportioning in primary mixed liquor, and stir to form secondary mixed
Close solution；
C, to clear water is added in secondary mixed solution, until concentration reaches setting value.
9. backwater processing method in oil field as claimed in claim 8, it is characterised in that in step A, nitrate is added into water first
Middle mixed dissolution, nitrite and molybdate then added in lysate and stirred again, and/or,
30 minutes are at least wanted in step A, the step of dissolving, 30 minutes is at least needed the step of assign.
10. backwater processing method in oil field as claimed in claim 8, it is characterised in that the step of being assigned in step B at least needs
20 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710086481.6A CN106904749B (en) | 2017-02-17 | 2017-02-17 | Biological activator for oil field reinjection water treatment and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710086481.6A CN106904749B (en) | 2017-02-17 | 2017-02-17 | Biological activator for oil field reinjection water treatment and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN106904749A true CN106904749A (en) | 2017-06-30 |
| CN106904749B CN106904749B (en) | 2020-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710086481.6A Active CN106904749B (en) | 2017-02-17 | 2017-02-17 | Biological activator for oil field reinjection water treatment and preparation method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101875839A (en) * | 2009-04-30 | 2010-11-03 | 中国石油天然气股份有限公司 | Multifunctional preparation for controlling biological corrosion and blockage of oil field production system |
| CN103113866A (en) * | 2013-02-06 | 2013-05-22 | 中国石油化工股份有限公司 | Novel biological inhibitor for inhibiting activity of sulfate reducing bacteria in oil well and use method thereof |
-
2017
- 2017-02-17 CN CN201710086481.6A patent/CN106904749B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101875839A (en) * | 2009-04-30 | 2010-11-03 | 中国石油天然气股份有限公司 | Multifunctional preparation for controlling biological corrosion and blockage of oil field production system |
| CN103113866A (en) * | 2013-02-06 | 2013-05-22 | 中国石油化工股份有限公司 | Novel biological inhibitor for inhibiting activity of sulfate reducing bacteria in oil well and use method thereof |
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| Publication number | Publication date |
|---|---|
| CN106904749B (en) | 2020-07-24 |
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