CN106746364A - A kind of oil field extracted water resource utilization method and its device - Google Patents
A kind of oil field extracted water resource utilization method and its device Download PDFInfo
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- CN106746364A CN106746364A CN201710079809.1A CN201710079809A CN106746364A CN 106746364 A CN106746364 A CN 106746364A CN 201710079809 A CN201710079809 A CN 201710079809A CN 106746364 A CN106746364 A CN 106746364A
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- water
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- air flotation
- treatment
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
- C02F1/4693—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrodialysis
-
- 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
- C02F3/02—Aerobic processes
Abstract
The invention discloses a kind of oil field extracted water resource utilization method, including during oil field extracted water is pumped into gravity oil-removing tank by (1), macromolecular oil droplet, water and solid suspension are separated and is removed respectively；(2) and then by air flotation turbo, the bubble in water takes the oil droplet in water out of；(3) air flotation turbo water outlet is transported in dissolved gas floatator, the oil emulsion and dissolved oil gone again in water removal；(4) treatment based on immobilized microorganisms pond is then delivered to, water outlet enters intermediate pool I；(5) MBR devices are then pumped into；(6) MBR devices water outlet is directly entered reverse osmosis unit treatment or electrodialysis plant treatment by being filtered by cartridge filter after intermediate pool II.The petroleum substances such as big particle diameter oil droplet, oil emulsion and dissolved oil are removed substantially using gravity oil-removing tank, air flotation turbo and the step of dissolved gas floatator three of supplement of mutually promoting successively；It is more preferable compared to traditional biochemical treatment process treatment effect using treatment based on immobilized microorganisms pond.
Description
Technical field：
The present invention relates to water-treatment technology field, and in particular to a kind of oil field extracted water resource utilization method and its dress
Put, realize the recycling of oil field extracted water.
Background technology：
Oil extraction in oil field technology is broadly divided into once, secondary and tertiary oil recovery technology.Blowing reality of the primary oil recovery mainly by oil
Existing, secondary oil recovery is by water is injected in oil reservoir, keeping certain pressure, the technology that Jiang Shui and oil are together extracted out, tertiary oil recovery
It is the technology by changing the property of injection water to improve tar productivity.It is main based on latter two technology at present.Latter two technology
Application can produce substantial amounts of water exploiting petroleum, recovered water water is big, moisture content is high, in water contain substantial amounts of oils, suspension
With the pollutant such as organic matter, if its direct recharge or discharge can be caused into serious pollution to environment, should further be located
Recharge or utilization again after reason.Conventional oiliness sewage treatment flow is：Recovered water → sedimentation separation → filtering oil removing → water outlet.
The handling process water outlet is generally used for recharge, and effluent quality is poor and causes the waste of water resource and energy.If will extraction
Water carries out advanced treating and reuse, for the water ring section such as oil field boiler water, not only avoids the waste of water resource, and be conducive to ring
Protect in border.Chinese patent CN2012101796584 discloses a kind of oil field produced water process and reuse method, oil field extracted water according to
It is secondary by oil removal precipitation, air-floating apparatus, filter and DTRO film devices, although using antipollution DTRO film devices as depth
Processing unit, simple yet with early stage processing procedure technics comparing, content of organics is higher in filter water outlet, actually makes
Reverse osmosis membrane pollution is still the subject matter for facing during, and it is also restriction that anti-pollution reverse osmosis membrane material cost is higher in addition
The bottleneck of the popularization of the technique.Chinese patent CN20101051114392 discloses a kind for the treatment of side of recycle of oil field produced water
Method, oil extraction-generated waste water sequentially passes through weight sedimentation, oil removal by air bubbling, active sludge treatment, contact-oxidation pool, extra quality filtering, lamination mistake
Filter, ultrafiltration and reverse-osmosis treated, although the technique is further improved, however during active sludge treatment and catalytic oxidation
Processing procedure produces substantial amounts of sludge, introduces the problem of Treatment of Sludge.
The content of the invention：
Present invention aim to overcome that the shortcoming that prior art is present, there is provided a kind of oil field extracted water resource utilization method
And its device, front end pretreatment deficiency causes successive depths processing procedure in solving existing oil field extracted water advanced treatment process
The problems such as producing a large amount of sludge to introduce Treatment of Sludge during high cost, or biochemical treatment.
To achieve the above object, a kind of oil field extracted water resource utilization method of the present invention, specifically includes following
Step：
(1) will be stored in during the oil field extracted water in waste water water tank pumps into gravity oil-removing tank, being acted on by gravitational settling will
Macromolecular oil droplet, water and solid suspension are separated and removed respectively；
(2) by air flotation turbo, the aerator in air flotation turbo injects in water bubble to the water outlet of gravity oil-removing tank,
The bubble being evenly distributed in water takes the oil droplet in water out of；
(3) air flotation turbo water outlet is transported in dissolved gas floatator, the oil emulsion and dissolved oil gone again in water removal, is passed through
Oil clearance in above-mentioned three step process oil field extracted water reaches more than 96%；
(4) treatment based on immobilized microorganisms pond is transported to by the water after dissolved gas floatator treatment, water outlet enters intermediate pool
I；
(5) intermediate pool I water outlets are pumped into MBR devices, MBR devices are integral type MBR devices, using in antipollution curtain
Fibre ultrafiltration film is easy to subsequently clean membrane material, and MBR device water outlets meet the requirement of oil field water qualified discharge, while also can
Technique recharge is enough taken as to be reused with water；
(6) MBR devices water outlet is directly entered at reverse osmosis unit by being filtered by cartridge filter after intermediate pool II
Reason or electrodialysis plant treatment.
Further, in immobilized microorganism pond of the present invention from the top down successively arrange sand filtration filter layer, it is aerobic
Fixation of microbe layer, anaerobism fixation of microbe layer and activated carbon adsorption layer, aerobic oil removing engineering bacteria are fixed on the micro- life of aerobic fixation
Nitride layer, anaerobism oil removing engineering bacteria is fixed on anaerobism fixation of microbe layer, by organic in treatment based on immobilized microorganisms pond treatment water
Thing is degraded, larger molecular organicses degraded, small organic molecule absorption, remaining a small amount of dissolved oil removal, solid suspension removal
Rate is that the clearance of 85%, COD reaches more than 75%.
A kind of oil field extracted water resource utilization device of the present invention includes water tank inlet, elevator pump, gravity oil-removing
Tank, air flotation turbo, the first elevator pump, dissolved gas floatator, treatment based on immobilized microorganisms pond, intermediate pool I, the second elevator pump,
MBR devices, elevator pump, intermediate pool II, water pump, cartridge filter, counter-infiltration system and product water tank, the water outlet of water tank inlet bottom
Mouth is connected by the first elevator pump with gravity oil-removing tank top, and gravity oil-removing tank side outlet pipe is intake with cavitation air flotation motor spindle
Mouth pipeline communication, air flotation turbo delivery port is connected by elevator pump with dissolved gas floatator top water inlet, on dissolved gas floatator
Portion's delivery port is connected with treatment based on immobilized microorganisms pond duct type, and treatment based on immobilized microorganisms pond delivery port is managed with intermediate pool I
Road is connected, and the second elevator pump connects intermediate pool I with MBR devices, and MBR device delivery ports are entered by water pump with cartridge filter
The mouth of a river connects, and cartridge filter delivery port is connected with feed water by reverse osmosis mouth or is connected with electrodialysis plant water inlet.
The present invention compared with prior art, with advantages below：(1) successively using the gravity oil-removing of supplement of mutually promoting
Tank, air flotation turbo and the step of dissolved gas floatator three remove the petroleum substances such as big particle diameter oil droplet, oil emulsion and dissolved oil substantially；
(2) it is more preferable compared to traditional biochemical treatment process treatment effect using treatment based on immobilized microorganisms pond.
Brief description of the drawings：
Fig. 1 is the oil field extracted water resource utilization method process chart that embodiment 1 is related to.
Fig. 2 is the oil field extracted water resource utilization method process chart that embodiment 2 is related to.
Specific embodiment：
The invention will be further described with reference to the accompanying drawings and examples.
Embodiment 1：
As shown in figure 1, a kind of oil field extracted water resource utilization method that the present embodiment is related to, specifically includes following step
Suddenly：
(1) will be stored in during the oil field extracted water in waste water water tank pumps into gravity oil-removing tank, being acted on by gravitational settling will
Macromolecular oil droplet, water and solid suspension are separated and removed respectively；
(2) by air flotation turbo, the aerator in air flotation turbo injects in water bubble to the water outlet of gravity oil-removing tank,
The bubble being evenly distributed in water takes the oil droplet in water out of；
(3) air flotation turbo water outlet is transported in dissolved gas floatator, the oil emulsion and dissolved oil gone again in water removal, is passed through
Oil clearance in above-mentioned three step process oil field extracted water reaches more than 96%；
(4) treatment based on immobilized microorganisms pond is transported to by the water after dissolved gas floatator treatment, in immobilized microorganism pond
Arrange successively from the top down sand filtration filter layer, aerobic fixation of microbe layer, anaerobism fixation of microbe layer and activated carbon adsorption layer, it is good
Oxygen oil removing engineering bacteria is fixed on aerobic fixation of microbe layer, and anaerobism oil removing engineering bacteria is fixed on anaerobism fixation of microbe layer, passes through
Treatment based on immobilized microorganisms pond treatment Organic substance in water degraded, larger molecular organicses degraded, small organic molecule absorption is remaining
A small amount of dissolved oil removal, solid suspension clearance reaches more than 75% for the clearance of 85%, COD, and water outlet enters middle water
Pond I；
(5) intermediate pool I water outlets are pumped into MBR devices, MBR devices are integral type MBR devices, using in antipollution curtain
Fibre ultrafiltration film be easy to it is follow-up membrane material is cleaned, water again passes by biochemical treatment when flowing into MBR membrane cisternas, organic matter degradation,
The total removal rate of COD reaches more than 95%, and solid suspension clearance is 90%, MBR device water outlets：COD 40-80mg/L, stone
Oils ＜ 0.05mg, electrical conductivity 15600us/cm, SS 108mg/L, meet feed water by reverse osmosis water quality requirement, while MBR devices go out
Water meets the requirement of oil field water qualified discharge, while can be used as being reused with water using technique recharge；
(6) MBR devices water outlet is directly entered at reverse osmosis unit by being filtered by cartridge filter after intermediate pool II
Reason, reverse osmosis unit water outlet：COD 2-5mg/L, petroleum-type is not detected, electrical conductivity 120-160us/cm, and SS is not detected, and meets pot
The influent quality standard of stove water.
A kind of oil field extracted water resource utilization device that the present embodiment is related to includes water tank inlet 1, elevator pump 2, gravity
Oil removing pot 3, air flotation turbo 4, the first elevator pump 5, dissolved gas floatator 6, treatment based on immobilized microorganisms pond 7, intermediate pool I8,
Two elevator pumps 9, MBR devices 10, elevator pump 11, intermediate pool II12, water pump 13, cartridge filter 14, the and of counter-infiltration system 15
Water tank 16 is produced, the bottom delivery port of water tank inlet 1 is connected by the first elevator pump 2 with the top of gravity oil-removing tank 3, gravity oil-removing tank 3
Side outlet pipe is connected with the bottom water inlet conduit of air flotation turbo 4, and the delivery port of air flotation turbo 4 passes through elevator pump 5 and molten gas
The top water inlet connection of air floatation machine 6, the top delivery port of dissolved gas floatator 6 is connected with the duct type for the treatment of based on immobilized microorganisms pond 7, Gu
Surely the delivery port of microbiological treatment pond 7 and intermediate pool I8 pipeline communications are changed, the second elevator pump 9 is by intermediate pool I8 and MBR devices
10 connections, the delivery port of MBR devices 10 is connected by water pump 13 with the water inlet of cartridge filter 14, the delivery port of cartridge filter 14 and
The water inlet of counter-infiltration 15 is connected.
Further, arrangement sand filtration filter layer 17 successively from the top down in treatment based on immobilized microorganisms pond 7, aerobic fixation is micro-
Biosphere 18, anaerobism fixation of microbe layer 19 and activated carbon adsorption layer 20, aerobic oil removing engineering bacteria are fixed on the micro- life of aerobic fixation
Nitride layer 18, anaerobism oil removing engineering bacteria is fixed on anaerobism fixation of microbe layer 19.
Embodiment 2：
As shown in Fig. 2 the present embodiment is different with embodiment 1 except step (6), other are same as Example 1.
(6) MBR devices water outlet is directly entered at electrodialysis plant by being filtered by cartridge filter after intermediate pool II
Reason, electrodialysis plant water outlet：COD 20-30mg/L, electrical conductivity 110-145us/cm, it can also be used as recycle-water.
A kind of oil field extracted water resource utilization device that the present embodiment is related to includes water tank inlet 1, elevator pump 2, gravity
Oil removing pot 3, air flotation turbo 4, the first elevator pump 5, dissolved gas floatator 6, treatment based on immobilized microorganisms pond 7, intermediate pool I8,
Two elevator pumps 9, MBR devices 10, elevator pump 11, intermediate pool II12, water pump 13, cartridge filter 14, electrodialysis system 15 ' and
Water tank 16 is produced, the bottom delivery port of water tank inlet 1 is connected by the first elevator pump 2 with the top of gravity oil-removing tank 3, gravity oil-removing tank 3
Side outlet pipe is connected with the bottom water inlet conduit of air flotation turbo 4, and the delivery port of air flotation turbo 4 passes through elevator pump 5 and molten gas
The top water inlet connection of air floatation machine 6, the top delivery port of dissolved gas floatator 6 is connected with the duct type for the treatment of based on immobilized microorganisms pond 7, Gu
Surely the delivery port of microbiological treatment pond 7 and intermediate pool I8 pipeline communications are changed, the second elevator pump 9 is by intermediate pool I8 and MBR devices
10 connections, the delivery port of MBR devices 10 is connected by water pump 13 with the water inlet of cartridge filter 14, the delivery port of cartridge filter 14 and
The water inlet of electrodialysis plant 15 ' is connected.
Claims (3)
1. a kind of oil field extracted water resource utilization method, it is characterised in that specifically include following steps：
(1) will be stored in during the oil field extracted water in waste water water tank pumps into gravity oil-removing tank, to divide greatly by gravitational settling effect
Seed oil drop, water and solid suspension are separated and removed respectively；
(2) by air flotation turbo, the aerator in air flotation turbo injects in water bubble to the water outlet of gravity oil-removing tank, uniformly
The bubble being distributed in water takes the oil droplet in water out of；
(3) air flotation turbo water outlet is transported in dissolved gas floatator, the oil emulsion and dissolved oil gone again in water removal, by above-mentioned
Oil clearance in three step process oil field extracted water reaches more than 96%；
(4) treatment based on immobilized microorganisms pond is transported to by the water after dissolved gas floatator treatment, water outlet enters intermediate pool I；
(5) intermediate pool I water outlets are pumped into MBR devices, MBR devices are integral type MBR devices, using the hollow fibre of antipollution curtain
Dimension milipore filter is easy to subsequently clean membrane material, and MBR device water outlets meet the requirement of oil field water qualified discharge, while can also make
It is to be reused with water using technique recharge；
(6) water outlet of MBR devices by after intermediate pool II by cartridge filter filter be directly entered reverse osmosis unit process or
Electrodialysis plant treatment.
2. oil field extracted water resource utilization method according to claim 1, it is characterised in that in immobilized microorganism pond
Arrange successively from the top down sand filtration filter layer, aerobic fixation of microbe layer, anaerobism fixation of microbe layer and activated carbon adsorption layer, it is good
Oxygen oil removing engineering bacteria is fixed on aerobic fixation of microbe layer, and anaerobism oil removing engineering bacteria is fixed on anaerobism fixation of microbe layer.
3. a kind of oil field extracted water resource utilization device, it is characterised in that including water tank inlet, elevator pump, gravity oil-removing tank,
Air flotation turbo, the first elevator pump, dissolved gas floatator, treatment based on immobilized microorganisms pond, intermediate pool I, the second elevator pump, MBR
Device, elevator pump, intermediate pool II, water pump, cartridge filter, counter-infiltration system and product water tank, water tank inlet bottom delivery port
Connected with gravity oil-removing tank top by the first elevator pump, gravity oil-removing tank side outlet pipe and cavitation air flotation motor spindle water inlet
Pipeline communication, air flotation turbo delivery port is connected by elevator pump with dissolved gas floatator top water inlet, dissolved gas floatator top
Delivery port is connected with treatment based on immobilized microorganisms pond duct type, treatment based on immobilized microorganisms pond delivery port and intermediate pool I pipelines
Connection, the second elevator pump connects intermediate pool I with MBR devices, and MBR devices delivery port is intake by water pump with cartridge filter
Mouth connection, cartridge filter delivery port is connected with feed water by reverse osmosis mouth or is connected with electrodialysis plant water inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710079809.1A CN106746364B (en) | 2017-02-15 | 2017-02-15 | Oil field produced water recycling method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710079809.1A CN106746364B (en) | 2017-02-15 | 2017-02-15 | Oil field produced water recycling method and device |
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| CN106746364A true CN106746364A (en) | 2017-05-31 |
| CN106746364B CN106746364B (en) | 2023-06-30 |
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| CN201710079809.1A Active CN106746364B (en) | 2017-02-15 | 2017-02-15 | Oil field produced water recycling method and device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107473516A (en) * | 2017-09-13 | 2017-12-15 | 王亚明 | A kind of oil field produced water process skid-mounted device of combined type |
| CN108249654A (en) * | 2018-01-26 | 2018-07-06 | 周粉粉 | A kind of intelligentized petrochemical wastewater processing equipment |
| CN110563273A (en) * | 2019-09-20 | 2019-12-13 | 中国石油化工股份有限公司 | Method for controlling deterioration of oilfield reinjection water along course |
| CN110862201A (en) * | 2019-12-31 | 2020-03-06 | 江苏博大环保股份有限公司 | Gas field water treatment system |
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| CN107473516A (en) * | 2017-09-13 | 2017-12-15 | 王亚明 | A kind of oil field produced water process skid-mounted device of combined type |
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| CN110862201A (en) * | 2019-12-31 | 2020-03-06 | 江苏博大环保股份有限公司 | Gas field water treatment system |
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| CN106746364B (en) | 2023-06-30 |
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