CN108298659A - The processing system and technique of oilfield filter backwash sewage and sludge condensation supernatant - Google Patents
The processing system and technique of oilfield filter backwash sewage and sludge condensation supernatant Download PDFInfo
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- CN108298659A CN108298659A CN201810256228.5A CN201810256228A CN108298659A CN 108298659 A CN108298659 A CN 108298659A CN 201810256228 A CN201810256228 A CN 201810256228A CN 108298659 A CN108298659 A CN 108298659A
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- sludge
- sewage
- oil
- knockout drum
- pot
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Treatment Of Sludge (AREA)
Abstract
The present invention provides the processing systems and technique of oilfield filter backwash sewage and sludge condensation supernatant, filter backwash sewage enters backwashing sewage water recycling can, pressurized pump is lifted into flocculation reactor, and subsequently into vertical settling knockout drum, the clear water in top enters oil removing pot processing；Vertical settling knockout drum, backwashing sewage water recycling can, oil water tank blowdown enter pollution discharge pond, it is promoted to sludge concentrating pot through sewage pump and carries out precipitation concentration, for sludge condensation supernatant by entering oil removing pot after flocculation reactor, the processing of vertical settling knockout drum, the sludge of precipitation concentration goes sludge dehydration device to handle after then pressurizeing by impeller pump；Oil slick at the top of backwashing sewage water recycling can, sludge concentrating pot and vertical settling knockout drum is then collected into oil skimming tank.By indoor floc test, filter backwash sewage oil-containing about 56mg/L after processing, suspended matter about 30mg/L, sludge condensation supernatant oil-containing about 34mg/L, suspended matter about 45mgL after processing meet water outlet and require.
Description
Technical field
The invention belongs to Treatment Techniques of Extracted Water from Crude Oil Production fields, and in particular to a kind of oil field produced water treatment station filter is anti-
Wash the processing system and technique of sewage and sludge condensation supernatant.
Background technology
The main process task technique that oil field produced water treatment station generally uses is as follows：Crude oil dehydrating system water → oil removing pot → gas
Floating oil removing/biochemistry oil removing → filter → treated water tank → water filling.The water quality of crude oil dehydrating system abjection is preferable, and general oil-containing≤
200mg/L, suspended matter≤200mg/L are not preferably greater than 300mg/l according to pertinent regulations oil removing pot water inlet oil content, and suspended matter is not
Preferably greater than 300mg/l, the effective 3~4h of sedimentation time of tank, water outlet require oil-containing and suspended matter generally to require to be less than 80mg/L.
Oil field produced water treatment station will produce some sewage in water treatment procedure, such as filter backwash sewage, grease
Supernatant etc. after tank, equipment blowdown concentration（Hereinafter referred to as sludge condensation supernatant）, which is generally directly entered oil removing
Tank carries out natural subsidence, and subsequently into subsequent treatment process, practice finds that the part water quality is poor, and settling property is poor, into master
Oil removing pot effluent quality can be caused to be deteriorated after technique, subsequent technique is impacted larger.Through lab analysis, filter backwash sewage
Oil-containing about 1290mg/L, suspended matter about 780mgL, by oil-containing about 560mg/L after natural subsidence for 24 hours, suspended matter about 690mgL,
Removal rate is respectively 56.6% and 11.5%；Sludge condensation supernatant oil-containing about 360mg/L, suspended matter about 495mgL, by sinking for 24 hours
Oil-containing about 250mg/L after drop, suspended matter about 220mgL, removal rate is respectively 30.6% and 55.6%.Experiment display：By for 24 hours from
So sedimentation, the supernatant water outlet after filter backwash sewage, oil water tank, equipment blowdown concentration are still significantly larger than oil removing pot water outlet and want
It asks, it is very big to the impact of oil removing pot subsequent technique, furthermore the sedimentation time that oil removing pot provides at present is only 3~4h.
Invention content
The object of the present invention is to provide the processing system of a kind of oilfield filter backwash sewage and sludge condensation supernatant and
Technique overcomes existing oil field produced water treatment station filter backwash sewage and sludge condensation supernatant since settling property is poor, leads
It causes oil content, suspension content to cannot be satisfied oil removing pot water outlet to require, the problem of causing to oil removing pot subsequent technique greater impact.
For this purpose, the present invention provides the processing systems of oilfield filter backwash sewage and sludge condensation supernatant, including it is logical
The sequentially connected backwashing sewage water recycling can of pipeline, force (forcing) pump, flocculation reactor, vertical settling knockout drum, oil removing pot are crossed, is also wrapped
Include pollution discharge pond, sludge concentrating pot, oil skimming tank and device for dehydrating sladge waste；
The bottom end of the backwashing sewage water recycling can and vertical settling knockout drum is connected to pollution discharge pond, pollution discharge pond by pipeline respectively
Be connected to sludge concentrating pot by sewage pump, sludge concentrating pot, vertical settling knockout drum, backwashing sewage water recycling can top point
Oil skimming tank is not connected to by pipeline, the bottom end of sludge concentrating pot is connected to rotor pump intake by pipeline, and rotor pumps out
Mouth is connected to device for dehydrating sladge waste by impeller pump mud extraction pipeline；
Tank skin where the sludge concentrating pot supernatant opens up multiple openings from top to bottom, each piece branch of opening connection
Pipeline concatenates a receipts water valve on each branch line, receives water valve upstream and installs a probe tube, a plurality of branch line converges
It is connected to sludge concentrating pot water outlet pipeline, sludge concentrating pot water outlet pipeline is connected to pressurization pump intake.
It is connected to by connecting tube between the sludge concentrating pot water outlet pipeline and impeller pump mud extraction pipeline, is concatenated in connecting tube
The first switching valve, the second switching valve is concatenated on impeller pump mud extraction pipeline, and the second switching valve is located at the first switching valve and dirt
Between mud dehydration equipment.
Bottom end is equipped with back taper mud-removing bucket in the vertical settling knockout drum tank, and top opens up floating oil collecting mouth.
The vertical settling separation upper end is discharged pipeline by vertical settling knockout drum and is connected to oil removing pot, and described is vertical
Formula settlement separation tank water outlet pipeline is inverted U shape structure, and the top of inverted U-shaped is higher by m at the top of vertical settling knockout drum.
Bottom end uses reverse frustoconic structure, top to be equipped with collection tank in the sludge concentrating pot tank.
For the flocculation reactor using columnar structured, bottom is tangential water inlet, and top is tangential water outlet.
The treatment process of oilfield filter backwash sewage and sludge condensation supernatant, oilfield filter backwash sewage is by pipeline
It is stored into backwashing sewage water recycling can, then pressurized pump is lifted into flocculation reactor, is added in flocculation reactor import
Flocculate medicament, and oil and suspended matter generate after being convenient for the flco of precipitation and enter vertical settling knockout drum, vertical settling knockout drum top
Clear water enters oil removing pot through vertical settling knockout drum water outlet pipeline, the sludge of vertical settling knockout drum bottom sedimentation and anti-
Rinse sewage recycling can, the dirt of oil field produced water treatment station oil water tank is all discharged into pollution discharge pond, the sludge in pollution discharge pond is regular
It is promoted in sludge concentrating pot through sewage pump and carries out precipitation concentration, the supernatant after concentration enters through sludge concentrating pot water outlet pipeline
Force (forcing) pump, then by entering oil removing pot after flocculation reactor, the processing of vertical settling knockout drum；Sedimentation concentration in sludge concentrating pot
Sludge afterwards enters device for dehydrating sladge waste after pressurizeing by impeller pump and handles；Backwashing sewage water recycling can, vertical settling knockout drum,
The floating oil collecting of sludge condensation tank top enters oil skimming tank.
Supernatant after concentration is collected using the multigroup receipts water valve and probe tube of different height in sludge concentrating pot tank skin, root
Judge muddy water liquid level according to probe tube sampling situation, the receipts water valve being then turned on above muddy water liquid level.
Further include that back flush is carried out to the sludge in sludge concentrating pot, needs when back flush to close within every seven days the second switching
Valve opens the first switching valve, and back flush is carried out to sludge using impeller pump reversion.
Beneficial effects of the present invention：This oilfield filter backwash sewage and sludge condensation supernatant provided by the invention
Processing system and technique pre-process filter backwash sewage, sludge condensation supernatant, and pretreated water meets oil removing
Tank inflow requirement ensures the normal operation of main technique.Since filter backwash sewage and sludge condensation supernatant settling property are poor,
The quasi- processing mode using chemical flocculation, by indoor floc test, filter backwash sewage oil-containing about 56mg/L after processing,
Suspended matter about 30mg/L, oil-containing about 34mg/L, suspended matter about 45mgL, satisfaction water outlet require sludge condensation supernatant after processing.
The present invention is described in further details below with reference to attached drawing.
Description of the drawings
Fig. 1 is the structural schematic diagram of the processing system of oilfield filter backwash sewage and sludge condensation supernatant.
Reference sign：
1. backwashing sewage water recycling can；2. force (forcing) pump；3. flocculation reactor；4. vertical settling knockout drum；5. pollution discharge pond；6. sewage
Pump；7. sludge concentrating pot；8. impeller pump；9. oil removing pot；10. oil skimming tank；11. device for dehydrating sladge waste；
401. vertical settling knockout drums are discharged pipeline；
701. sludge concentrating pots are discharged pipeline；702. branch line；703. connecting tube；704. receive water valve；705. probe tube；706.
Collection tank；707. first switching valves；708. second switching valves；
801. impeller pump mud extraction pipelines.
Specific implementation mode
Embodiment 1：
A kind of processing system of oilfield filter backwash sewage and sludge condensation supernatant is present embodiments provided, as shown in Figure 1,
Including by the sequentially connected backwashing sewage water recycling can 1 of pipeline, force (forcing) pump 2, flocculation reactor 3, vertical settling knockout drum 4,
Oil removing pot 9 further includes pollution discharge pond 5, sludge concentrating pot 7, oil skimming tank 10 and device for dehydrating sladge waste 11；
The bottom end of the backwashing sewage water recycling can 1 and vertical settling knockout drum 4 is connected to pollution discharge pond 5 by pipeline respectively, row
Dirty pond 5 is connected to sludge concentrating pot 7, sludge concentrating pot 7, vertical settling knockout drum 4, backwashing sewage water recycling by sewage pump 6
The top of tank 1 is connected to oil skimming tank 10 by pipeline respectively, and the bottom end of sludge concentrating pot 7 is connected to impeller pump by pipeline
8 entrances, the outlet of impeller pump 8 are connected to device for dehydrating sladge waste 11 by impeller pump mud extraction pipeline 801；
Tank skin where 7 supernatant of sludge concentrating pot opens up multiple openings from top to bottom, each one piece point of opening connection
By-pass line 702 concatenates a receipts water valve 704 on each branch line 702, receives 704 upstream of water valve and installs a probe tube
705, a plurality of branch line 702, which converges, is connected to sludge concentrating pot water outlet pipeline 701, and sludge concentrating pot is discharged pipeline 701 and connects
To 2 entrance of force (forcing) pump.
The course of work of the processing system of oilfield filter backwash sewage and sludge condensation supernatant is as follows：
Oilfield filter backwash sewage enters backwashing sewage water recycling can 1 by pipeline and stores, and then pressurized pump 2 is lifted into wadding
Solidifying reactor 3 enters vertical after 3 import of flocculation reactor adds flocculation medicament, oil and suspended matter generation convenient for the flco of precipitation
Formula settlement separation tank 4, the clear water in 4 top of vertical settling knockout drum enter oil removing through vertical settling knockout drum water outlet pipeline 401
Tank 9, the sludge and backwashing sewage water recycling can 1, oil field produced water treatment station oil water tank of the sedimentation of 4 bottom of vertical settling knockout drum
Dirt be all discharged into pollution discharge pond 5, the sludge in pollution discharge pond 5, which is periodically promoted to through sewage pump 6 in sludge concentrating pot 7, to be precipitated
Concentration, supernatant after concentration enter force (forcing) pump 2 through sludge concentrating pot water outlet pipeline 701, then by flocculation reactor 3, vertical
Enter oil removing pot 9 after the processing of formula settlement separation tank 4；After sludge in sludge concentrating pot 7 after sedimentation concentration is pressurizeed by impeller pump 8
Into the processing of device for dehydrating sladge waste 11；Backwashing sewage water recycling can 1, vertical settling knockout drum 4, the top of sludge concentrating pot 7 it is floating
Oil, which is collected, enters oil skimming tank 10.
Embodiment 2：
On the basis of embodiment 1, pass through company between the sludge concentrating pot water outlet pipeline 701 and impeller pump mud extraction pipeline 801
703 connection of take over concatenates the first switching valve 707 in connecting tube 703, and the second switching is concatenated on impeller pump mud extraction pipeline 801
Valve 708, and the second switching valve 708 is between the first switching valve 707 and device for dehydrating sladge waste 11.
Oil water tank, equipment and backwashing sewage water recycling can 1,4 blowdown of vertical settling knockout drum all access pollution discharge pond 5, fixed
Phase is promoted to sludge concentrating pot 7 through sewage pump 6 and carries out sludge condensation precipitation, and the supernatant after concentration uses multigroup receipts water valve 704
It collects, multigroup receipts water valve 704 is set in 7 tank skin different height of sludge concentrating pot, probe tube 705 is equipped with before each receipts water valve 704,
Judge mud, aqueous position according to sampling situation, the receipts water valve 704 being then turned on muddy water liquid level is dense by sludge by supernatant
Contracting tank is discharged pipeline 701 and accesses force (forcing) pump 2, and subsequent processing is the same with filter backwash sewage, by flocculation reactor 3, vertical
Enter oil removing pot 9 after the processing of settlement separation tank 4.
Sludge in sludge concentrating pot 7 is defeated de- to sludge through impeller pump mud extraction pipeline 801 after periodically being promoted by impeller pump 8
The processing of wetting system 11, sludge concentrating pot are discharged pipeline 701 and are equipped with the first switching valve 707, and impeller pump mud extraction pipeline 801 is equipped with
Second switching valve 708 need to close the second switching valve 708 for every 7 days to prevent sludge concentrating pot sludge hardened, open the first switching
Valve 707 carries out back flush using 8 reverse function of impeller pump to sludge.
Embodiment 3：
On the basis of embodiment 1, bottom end is equipped with back taper mud-removing bucket in 4 tank of vertical settling knockout drum, and top opens up floating
Oily collection port, total residence time 30min.Vertical settling knockout drum 4 uses vertical bearing water pot, pot bottom to set back taper spoil disposal
Bucket, is periodically discharged to pollution discharge pond 5 by sludge.
Embodiment 4：
On the basis of embodiment 1 or 3,4 top of vertical settling knockout drum is discharged pipeline 401 by vertical settling knockout drum
It is connected to oil removing pot 9, vertical settling knockout drum water outlet pipeline 401 is inverted U shape structure, and the top of inverted U-shaped is higher by
4 top 300m of vertical settling knockout drum ensures the 4 canful operation of vertical settling knockout drum.
Embodiment 5：
On the basis of embodiment 1, bottom end uses reverse frustoconic structure, top to be equipped with collection tank in 7 tank of the sludge concentrating pot
706, periodically oil slick is received by pipeline to oil skimming tank 10.For sludge concentrating pot 7 using cone bottom structure, top sets collection tank
706, conical lower portion is sludge condensation area, and back with water inlet line is located at tank body middle and lower part, and tank skin different height sets multigroup receipts water valve and takes
Sample pipe analyzes water sludge interface height, is periodically recycled supernatant.When water sludge interface exceeds design position, then by rotor
The sludge that pump promotes after concentration goes sludge dehydration device to handle.
Embodiment 6：
On the basis of embodiment 1, the use of the flocculation reactor 3 is columnar structured, and bottom is tangential water inlet, and top is tangential
Water outlet.Flow is mixed at eddy flow state convenient for medicament in cylinder, it is therefore an objective to be acted on oil and suspended matter by hydraulic mixing
Flocculation generates large-size, the flco convenient for precipitation, 3 total residence time 5min of flocculation reactor.The water outlet of flocculation reactor 3 enters
Vertical settling knockout drum 4 carries out mud-water separation, total residence time 30min.
Embodiment 7：
Present embodiments provide a kind for the treatment of process of oilfield filter backwash sewage and sludge condensation supernatant, oilfield filter
Backwash sewage enters backwashing sewage water recycling can 1 by pipeline and stores, and then pressurized pump 2 is lifted into flocculation reactor 3, is wadding a quilt with cotton
Solidifying 3 import of reactor adds flocculation medicament, and oil and suspended matter enter vertical settling knockout drum 4 after generating the flco convenient for precipitation,
The clear water in 4 top of vertical settling knockout drum enters oil removing pot 9, vertical settling point through vertical settling knockout drum water outlet pipeline 401
The dirt of sludge and backwashing sewage water recycling can 1, oil field produced water treatment station oil water tank from the sedimentation of 4 bottom of tank is all discharged into
Pollution discharge pond 5, the sludge in pollution discharge pond 5, which is periodically promoted to through sewage pump 6 in sludge concentrating pot 7, carries out precipitation concentration, after concentration
Supernatant enters force (forcing) pump 2 through sludge concentrating pot water outlet pipeline 701, then passes through flocculation reactor 3, vertical settling knockout drum 4
Enter oil removing pot 9 after processing；Sludge in sludge concentrating pot 7 after sedimentation concentration enters sludge dewatering after pressurizeing by impeller pump 8
The processing of equipment 11；Backwashing sewage water recycling can 1, vertical settling knockout drum 4, the top of sludge concentrating pot 7 floating oil collecting enter dirt
Oil recovery tank 10.
Embodiment 8：
On the basis of embodiment 7, receiving the specifically used method of water valve 704 and probe tube 705 is：Supernatant after concentration uses
Multigroup receipts water valve 704 of different height and probe tube 705 are collected in 7 tank skin of sludge concentrating pot, and situation is sampled according to probe tube 705
Judge muddy water liquid level, the receipts water valve 704 being then turned on above muddy water liquid level.
Embodiment 9：
On the basis of embodiment 7, for prevent sludge concentrating pot sludge siltation, it is hardened, influence rotor pumping, be equipped with impeller pump
Flow is inverted, valve need to be periodically switched, suction supernatant blowback concentrates pot bottom, specifically：Oilfield filter backwash sewage and
The treatment process of sludge condensation supernatant further includes carrying out back flush to the sludge in sludge concentrating pot 7, is needed when back flush
It closes the second switching valve 708 within every seven days, opens the first switching valve 707, back flush is carried out to sludge using the reversion of impeller pump 8.
The foregoing examples are only illustrative of the present invention, does not constitute the limitation to protection scope of the present invention, all
Be with the present invention it is same or analogous design all belong to the scope of protection of the present invention within.The portion that the present embodiment does not describe in detail
The well-known components and common structure or conventional means of part and the structure category industry, do not describe one by one here.
Claims (9)
1. the processing system of oilfield filter backwash sewage and sludge condensation supernatant, it is characterised in that：Including by pipeline according to
The backwashing sewage water recycling can of secondary connection（1）, force (forcing) pump（2）, flocculation reactor（3）, vertical settling knockout drum（4）, oil removing pot
（9）, further include pollution discharge pond（5）, sludge concentrating pot（7）, oil skimming tank（10）And device for dehydrating sladge waste（11）；
The backwashing sewage water recycling can（1）With vertical settling knockout drum（4）Bottom end pollution discharge pond is connected to by pipeline respectively
（5）, pollution discharge pond（5）Pass through sewage pump（6）It is connected to sludge concentrating pot（7）, sludge concentrating pot（7）, vertical settling knockout drum
（4）, backwashing sewage water recycling can（1）Top oil skimming tank is connected to by pipeline respectively（10）, sludge concentrating pot（7）'s
Bottom end is connected to impeller pump by pipeline（8）Entrance, impeller pump（8）Outlet passes through impeller pump mud extraction pipeline（801）It is connected to dirt
Mud dehydration equipment（11）；
The sludge concentrating pot（7）Tank skin where supernatant opens up multiple openings from top to bottom, each opening connection one
Branch line（702）, each branch line（702）One receipts water valve of upper concatenation（704）, receive water valve（704）Upstream installation one
A probe tube（705）, a plurality of branch line（702）Converge and is connected to sludge concentrating pot water outlet pipeline（701）, sludge concentrating pot goes out
Water pipeline（701）It is connected to force (forcing) pump（2）Entrance.
2. the processing system of oilfield filter backwash sewage and sludge condensation supernatant as described in claim 1, feature exist
In：The sludge concentrating pot is discharged pipeline（701）With impeller pump mud extraction pipeline（801）Between pass through connecting tube（703）Connection, even
It takes over（703）On concatenate the first switching valve（707）, impeller pump mud extraction pipeline（801）On concatenate the second switching valve（708）,
And second switching valve（708）Positioned at the first switching valve（707）And device for dehydrating sladge waste（11）Between.
3. the processing system of oilfield filter backwash sewage and sludge condensation supernatant as described in claim 1, feature exist
In：The vertical settling knockout drum（4）Bottom end is equipped with back taper mud-removing bucket in tank, and top opens up floating oil collecting mouth.
4. the processing system of the oilfield filter backwash sewage and sludge condensation supernatant as described in claim 1 or 3, feature
It is：The vertical settling knockout drum（4）Top is discharged pipeline by vertical settling knockout drum（401）It is connected to oil removing pot（9）,
The vertical settling knockout drum is discharged pipeline（401）It is inverted U shape structure, the top of inverted U-shaped is higher by vertical settling separation
Tank（4）Top 300m.
5. the processing system of oilfield filter backwash sewage and sludge condensation supernatant as described in claim 1, feature exist
In：The sludge concentrating pot（7）Bottom end uses reverse frustoconic structure, top to be equipped with collection tank in tank（706）.
6. the processing system of oilfield filter backwash sewage and sludge condensation supernatant as described in claim 1, feature exist
In：The flocculation reactor（3）Using columnar structured, bottom is tangential water inlet, and top is tangential water outlet.
7. the oilfield filter backwash sewage and sludge condensation supernatant as described in any claim in claim 1~6
The treatment process of processing system, it is characterised in that：Oilfield filter backwash sewage enters backwashing sewage water recycling can by pipeline（1）
It stores, then pressurized pump（2）It is lifted into flocculation reactor（3）, in flocculation reactor（3）Import adds flocculation medicament, oil
Enter vertical settling knockout drum after generating the flco convenient for precipitation with suspended matter（4）, vertical settling knockout drum（4）Top is clear
Water is discharged pipeline through vertical settling knockout drum（401）Into oil removing pot（9）, vertical settling knockout drum（4）The sludge of bottom sedimentation
And backwashing sewage water recycling can（1）, oil field produced water treatment station oil water tank dirt be all discharged into pollution discharge pond（5）, pollution discharge pond
（5）Interior sludge is periodically through sewage pump（6）It is promoted to sludge concentrating pot（7）Interior carry out precipitation concentration, the supernatant warp after concentration
Sludge concentrating pot is discharged pipeline（701）Into force (forcing) pump（2）, then pass through flocculation reactor（3）, vertical settling knockout drum（4）
Enter oil removing pot after processing（9）；Sludge concentrating pot（7）Sludge after interior sedimentation concentration passes through impeller pump（8）Enter dirt after pressurization
Mud dehydration equipment（11）Processing；Backwashing sewage water recycling can（1）, vertical settling knockout drum（4）, sludge concentrating pot（7）Top
Floating oil collecting enters oil skimming tank（10）.
8. the treatment process of oilfield filter backwash sewage and sludge condensation supernatant as claimed in claim 7, feature exist
In：Supernatant after concentration uses sludge concentrating pot（7）Multigroup receipts water valve of different height in tank skin（704）And probe tube
（705）It collects, according to probe tube（705）Sampling situation judges muddy water liquid level, the receipts water valve being then turned on above muddy water liquid level
（704）.
9. the treatment process of oilfield filter backwash sewage and sludge condensation supernatant as claimed in claim 7, feature exist
In：Further include to sludge concentrating pot（7）Interior sludge carries out back flush, and when back flush needs every seven days to close the second switching valve
（708）, open the first switching valve（707）, utilize impeller pump（8）Reversion carries out back flush to sludge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810256228.5A CN108298659A (en) | 2018-03-27 | 2018-03-27 | The processing system and technique of oilfield filter backwash sewage and sludge condensation supernatant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810256228.5A CN108298659A (en) | 2018-03-27 | 2018-03-27 | The processing system and technique of oilfield filter backwash sewage and sludge condensation supernatant |
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| Publication Number | Publication Date |
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| CN108298659A true CN108298659A (en) | 2018-07-20 |
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ID=62847813
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810256228.5A Pending CN108298659A (en) | 2018-03-27 | 2018-03-27 | The processing system and technique of oilfield filter backwash sewage and sludge condensation supernatant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112723618A (en) * | 2020-12-10 | 2021-04-30 | 广西电网有限责任公司桂林供电局 | Automatic treatment device for oilization test waste liquid |
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| CN201560163U (en) * | 2009-11-23 | 2010-08-25 | 西安长庆科技工程有限责任公司 | Skid-mounted oily sludge dewatering device |
| CN103112967A (en) * | 2013-02-28 | 2013-05-22 | 孟兵川 | Oilfield sewage cyclone disturbance treatment method and device |
| CN208218477U (en) * | 2018-03-27 | 2018-12-11 | 西安长庆科技工程有限责任公司 | The processing system of oilfield filter backwash sewage and sludge condensation supernatant |
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2018
- 2018-03-27 CN CN201810256228.5A patent/CN108298659A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1449342A (en) * | 1974-01-03 | 1976-09-15 | British Petroleum Co | Process for reducing the oil conentt of aqueous effluents |
| CN1371876A (en) * | 2002-04-04 | 2002-10-02 | 大庆油田建设设计研究院 | Sludge concentration dehydration treatment device |
| CN1458074A (en) * | 2003-05-14 | 2003-11-26 | 大庆油田有限责任公司 | Waste water treating process for polymer oil displacing and producing system |
| CN201560163U (en) * | 2009-11-23 | 2010-08-25 | 西安长庆科技工程有限责任公司 | Skid-mounted oily sludge dewatering device |
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| CN208218477U (en) * | 2018-03-27 | 2018-12-11 | 西安长庆科技工程有限责任公司 | The processing system of oilfield filter backwash sewage and sludge condensation supernatant |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112723618A (en) * | 2020-12-10 | 2021-04-30 | 广西电网有限责任公司桂林供电局 | Automatic treatment device for oilization test waste liquid |
| CN112723618B (en) * | 2020-12-10 | 2022-08-02 | 广西电网有限责任公司桂林供电局 | Automatic treatment device for oilization test waste liquid |
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