CN110436682A - A kind of offshore oilfield returns drain advanced treatment process - Google Patents
A kind of offshore oilfield returns drain advanced treatment process Download PDFInfo
- Publication number
- CN110436682A CN110436682A CN201910601822.8A CN201910601822A CN110436682A CN 110436682 A CN110436682 A CN 110436682A CN 201910601822 A CN201910601822 A CN 201910601822A CN 110436682 A CN110436682 A CN 110436682A
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- Prior art keywords
- equipment
- drain
- oil
- discharged
- sludge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000000034 method Methods 0.000 title claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000010802 sludge Substances 0.000 claims abstract description 23
- 239000010865 sewage Substances 0.000 claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 claims abstract description 14
- 239000007787 solid Substances 0.000 claims abstract description 14
- 239000000839 emulsion Substances 0.000 claims abstract description 13
- 239000002101 nanobubble Substances 0.000 claims abstract description 10
- 238000005191 phase separation Methods 0.000 claims abstract description 8
- 238000004581 coalescence Methods 0.000 claims abstract description 6
- 238000002525 ultrasonication Methods 0.000 claims abstract description 6
- 238000007599 discharging Methods 0.000 claims abstract description 5
- 238000011001 backwashing Methods 0.000 claims 1
- 239000002245 particle Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 2
- 230000009514 concussion Effects 0.000 description 2
- 238000004945 emulsification Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000010808 liquid waste Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000009210 therapy by ultrasound Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- 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
- C02F1/34—Treatment of water, waste water, or sewage with mechanical oscillations
- C02F1/36—Treatment of water, waste water, or sewage with mechanical oscillations ultrasonic vibrations
-
- 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
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
- C02F1/385—Treatment of water, waste water, or sewage by centrifugal separation by centrifuging suspensions
-
- 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
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention discloses a kind of offshore oilfields to return drain advanced treatment process, and steps are as follows: will return drain by elevator pump and be evacuated to ultrasonic emulsion breaking device；In ultrasonic emulsion breaking device, by ultrasonication to return drain quickly shaken, collide and coalescence handle；Drain of returning after sonicated enters oily solid water three phase separation equipment and carries out demulsification processing, the single treatment sewage of generation is discharged into micro-nano bubble and cyclone through the water outlet of equipment and floats unit equipment, sump oil is discharged through the oil discharge outlet of equipment, and sludge settling is in device bottom；Unit equipment is floated by micro-nano bubble and cyclone, and processing is centrifuged to sewage, the secondary treatment sewage of generation is discharged into through the water outlet of equipment to try production, oil slick is discharged through the oil discharge outlet of equipment, and the sludge for being deposited on device bottom is expelled in sludge collecting tank through mud discharging mouth.The present invention is intended to provide a kind for the treatment of effeciency is high full-automatic, it may separate out and return the offshore oilfield of sump oil and sludge in drain and return drain advanced treatment process.
Description
Technical field
The present invention relates to liquid waste disposal technique fields more particularly to a kind of offshore oilfield to return drain advanced treatment process.
Background technique
At sea in production platform production process, in the operations such as water process or oil treatment system maintenance, equipment leakage, have
A certain amount of oily wastewater, which returns, drains into platform or FPSO hold, while in operation process, such as pressure break, acidification, well-flushing, new well drain
It is also more difficult that drain is returned in process processing.Operation is normally handled in order to not influence production water, drain will be usually returned and return and drain into hold, is grown
Phase accumulation, a large amount of microbial growths cause hold to return draining ingredient complex, and impurity content is relatively high, and emulsification is serious, processing
Get up extremely difficult.As that directly to drain progress water treatment process is returned, try production stability can be seriously affected, caused
Water outlet is unable to satisfy reinjected water or row's seamark alignment request, the bilge return the difficulty that drain has become puzzlement offshore production platform water process
Topic.
For this strand of waste liquid temporarily without effective treating method, part oil field will return drain accumulation in production platform and FPSO for a long time at present
Hold, causes safe and environment-friendly hidden danger, also has part oil field that this strand of waste liquid is slowly injected into production water system and handles, but gives
Try production causes very big burden, influences the stability of production water process.Therefore, now it is badly in need of a kind for the treatment of effeciency
Height, it is full-automatic, it may separate out and return the offshore oilfield of sump oil and sludge in drain and return drain advanced treatment process.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art described above, it is desirable to provide a kind for the treatment of effeciency is high, entirely certainly
Dynamicization may separate out and return the offshore oilfield of sump oil and sludge in drain and return drain advanced treatment process.
In order to achieve the above objectives, the present invention is achieved by following technical proposals:
A kind of offshore oilfield returns drain advanced treatment process, includes the following steps:
1. will return drain by elevator pump is evacuated to ultrasonic emulsion breaking device；
2. in ultrasonic emulsion breaking device, by ultrasonication to return drain quickly shaken, collide and coalescence handle；
3. the drain of returning after sonicated enters oily solid water three phase separation equipment and carries out demulsification processing, the primary place of generation
Reason sewage is discharged into micro-nano bubble and cyclone through the water outlet of equipment and floats unit equipment, and sump oil is discharged through the oil discharge outlet of equipment,
Sludge settling is in device bottom；
4. floating unit equipment by micro-nano bubble and cyclone is centrifuged processing, the secondary treatment of generation to sewage
Sewage is discharged into through the water outlet of equipment to try production, and oil slick is discharged through the oil discharge outlet of equipment, is deposited on device bottom
Sludge be expelled in sludge collecting tank through mud discharging mouth.
Further, step 2. in, the ultrasonic frequency range of the ultrasonic emulsion breaking device is 20-40KHZ.
Further, step 3. in, the sludge settled in the oil solid water three phase separation equipment, by periodically backwash by
Sludge is expelled in sludge collecting tank.
Further, step 4. in, time of centrifuging treatment is 5-30min.
Further, 4. oil slick that the sump oil and step that 3. step generates generate is expelled to the progress of crude Treatment system
Processing.
Compared with the existing technology, the invention has the following advantages:
1, of the present invention to return drain treatment process, treatment effeciency is high, and occupied area is small, is very suitable at sea put down
Platform.The processing time of traditional handicraft is the 1/ of traditional handicraft in 3h, the processing time 15-60min of the technique, occupation area of equipment
5-1/3.Without mud power-assisted facility is scraped in equipment, good reliability runs and safeguards and is simple, at low cost.Whole process uses pressure type
Auxiliary facility is greatly reduced, it can be achieved that oil extraction, draining, the full-automation of spoil disposal and exhaust in blowdown mode.
2, physics demulsification is carried out to drain is returned using ultrasound and microbubble in this technique, compares traditional medicament, system is by water
Matter and oil product influence of fluctuations are small, and treatment effect is stablized, and it is good to isolate sump oil oil product, effluent quality oil-containing, containing solid low.
Detailed description of the invention
Fig. 1 is process flow diagram of the invention.
Specific embodiment
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figure 1, a kind of offshore oilfield returns drain advanced treatment process, include the following steps:
1. will return drain by elevator pump is evacuated to ultrasonic emulsion breaking device.
2. in ultrasonic emulsion breaking device, by the ultrasonication of 20-40KHZ to return drain quickly shaken, collide and
Coalescence processing.Under ultrasonication, emulsified water contained in sump oil passes through quickly concussion, collision and coalescence and is demulsified into big water droplet,
Solid particle is also detached from oil into sewage under ultrasonication in oil.Dirty water part oil emulsion is in ultrasound simultaneously
Under effect, quickly concussion, collision coalescence float at larger oil droplet, and solid particle usually is combined to form oil emulsion with oil in water, super
The lower oil emulsion comprising particle of sound effect realizes demulsification, and sump oil gradually disengages solid particle, is demulsified to realize in water, is de- solid.
3. the drain of returning after sonicated enters oil gas water three phase separation equipment and carries out demulsification processing, the primary place of generation
Reason sewage is discharged into micro-nano bubble and cyclone through the water outlet of equipment and floats unit equipment, and sump oil is expelled to through the oil discharge outlet of equipment
Crude Treatment system is handled, the sludge that sludge settling settles in device bottom, oil gas water three phase separation equipment, by fixed
Sludge is expelled in sludge collecting tank by phase backwash.Drain, which is returned, after ultrasonic treatment demulsification enters oily solid water three phase separation equipment,
Sump oil floats rapidly under coalescent pack effect after demulsification, and is agglomerated into oil reservoir and is discharged through oil discharge outlet, and sewage is discharged through water outlet,
Separation equipment bottom is sunk under solid particle, and solid is discharged using regular backwash.
4. single treatment sewage floats in micro-nano bubble and cyclone and processing is centrifuged in unit equipment, and the two of generation
Secondary processing sewage is discharged into through the water outlet of equipment to try production is removed, and crude Treatment is discharged through the oil discharge outlet of equipment in oil slick
System is handled, and the sludge for being deposited on device bottom is expelled in sludge collecting tank through mud discharging mouth, centrifuging treatment when
Between be 5-30min.Sewage under micro-nano bubble and cyclonic current centrifugal force comprehensive function, touched by micro-nano bubble rapidly by emulsification
It after hitting, adhering to, is gradually demulsified, gathers upper side, form oil slick layer again through oil discharge outlet device for transferring, sewage is through arranging after processing
The mouth of a river is discharged into try production, and bottom deposit solid is discharged through mud discharging mouth, which only needs 5-
30min is the 1/10-1/5 of traditional equipment, and occupied area is only the 1/5-1/2 of traditional equipment.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of offshore oilfield returns drain advanced treatment process, characterized by the following steps:
1. will return drain by elevator pump is evacuated to ultrasonic emulsion breaking device；
2. in ultrasonic emulsion breaking device, by ultrasonication to return drain quickly shaken, collide and coalescence handle；
3. the drain of returning after sonicated enters oily solid water three phase separation equipment and carries out demulsification processing, the single treatment of generation is dirty
Water is discharged into micro-nano bubble and cyclone through the water outlet of equipment and floats unit equipment, and sump oil is discharged through the oil discharge outlet of equipment, sludge
It is deposited in device bottom；
4. floating unit equipment by micro-nano bubble and cyclone is centrifuged processing, the secondary treatment sewage of generation to sewage
Water outlet through equipment is discharged into try production, and oil slick is discharged through the oil discharge outlet of equipment, is deposited on the dirt of device bottom
Mud is expelled in sludge collecting tank through mud discharging mouth.
2. a kind of offshore oilfield according to claim 1 returns drain advanced treatment process, it is characterised in that: step 2. in,
The ultrasonic frequency range of the ultrasonic emulsion breaking device is 20-40KHZ.
3. a kind of offshore oilfield according to claim 1 returns drain advanced treatment process, it is characterised in that: step 3. in,
Sludge, is expelled in sludge collecting tank by the sludge settled in the oil solid water three phase separation equipment by periodically backwashing.
4. a kind of offshore oilfield according to claim 1 returns drain advanced treatment process, it is characterised in that: step 4. in,
The time of centrifuging treatment is 5-30min.
5. a kind of offshore oilfield according to claim 1 returns drain advanced treatment process, it is characterised in that: 3. step generates
Sump oil and the oil slick that 4. generates of step, be expelled to crude Treatment system and handled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910601822.8A CN110436682A (en) | 2019-07-06 | 2019-07-06 | A kind of offshore oilfield returns drain advanced treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910601822.8A CN110436682A (en) | 2019-07-06 | 2019-07-06 | A kind of offshore oilfield returns drain advanced treatment process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110436682A true CN110436682A (en) | 2019-11-12 |
Family
ID=68428693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910601822.8A Pending CN110436682A (en) | 2019-07-06 | 2019-07-06 | A kind of offshore oilfield returns drain advanced treatment process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110436682A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111186975A (en) * | 2020-03-11 | 2020-05-22 | 金碳环境科技（天津）有限公司 | Ultrasonic oil stain treatment process |
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|---|---|---|---|---|
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| CN202400923U (en) * | 2011-11-10 | 2012-08-29 | 中国石油化工股份有限公司 | Ultrasonic coalescence air floating oil removal device |
| CN102849880A (en) * | 2012-09-24 | 2013-01-02 | 杰瑞能源服务有限公司 | Method for comprehensive treatment of oilfield waste |
| CN107522310A (en) * | 2017-10-16 | 2017-12-29 | 恩曼技术（北京）有限公司 | Not agent-feeding treatment oil-polluted water re-injection technique |
| CN108423897A (en) * | 2018-03-20 | 2018-08-21 | 中国科学院过程工程研究所 | A kind of oiliness sewage treatment equipment and technique |
-
2019
- 2019-07-06 CN CN201910601822.8A patent/CN110436682A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202400923U (en) * | 2011-11-10 | 2012-08-29 | 中国石油化工股份有限公司 | Ultrasonic coalescence air floating oil removal device |
| CN202379773U (en) * | 2012-01-06 | 2012-08-15 | 李继凤 | Ultrasonic wave processing oil field polymer-bearing produced water device |
| CN102849880A (en) * | 2012-09-24 | 2013-01-02 | 杰瑞能源服务有限公司 | Method for comprehensive treatment of oilfield waste |
| CN107522310A (en) * | 2017-10-16 | 2017-12-29 | 恩曼技术（北京）有限公司 | Not agent-feeding treatment oil-polluted water re-injection technique |
| CN108423897A (en) * | 2018-03-20 | 2018-08-21 | 中国科学院过程工程研究所 | A kind of oiliness sewage treatment equipment and technique |
Non-Patent Citations (2)
| Title |
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| 段云霞等: "《城市黑臭水体治理实用技术及案例分析》", 31 March 2018, 天津大学出版社 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111186975A (en) * | 2020-03-11 | 2020-05-22 | 金碳环境科技（天津）有限公司 | Ultrasonic oil stain treatment process |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191112 |
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| RJ01 | Rejection of invention patent application after publication |