CN114249471A - Oil-water-sand three-phase separation system and separation method - Google Patents
Oil-water-sand three-phase separation system and separation method Download PDFInfo
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- CN114249471A CN114249471A CN202111587402.2A CN202111587402A CN114249471A CN 114249471 A CN114249471 A CN 114249471A CN 202111587402 A CN202111587402 A CN 202111587402A CN 114249471 A CN114249471 A CN 114249471A
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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
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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
- C02F1/24—Treatment of water, waste water, or sewage by flotation
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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
- C02F1/34—Treatment of water, waste water, or sewage with mechanical oscillations
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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
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
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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
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
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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
- C02F2001/007—Processes including a sedimentation step
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/32—Hydrocarbons, e.g. oil
Abstract
The invention aims to provide an oil-water-sand three-phase separation system and a separation method, and belongs to the technical field of water-containing dirty oil treatment. The sewage treatment device comprises a first-stage high-frequency pulse treatment device, dirty oil and an emulsion breaker are mixed and then enter the first-stage high-frequency pulse treatment device through a pipeline, the oil treated by the first-stage high-frequency pulse treatment device enters a centrifugal separation device through the pipeline, the sewage treated by the first-stage high-frequency pulse treatment device is mixed with an inverse emulsion breaker and then sequentially discharged outside through a second-stage high-frequency pulse treatment device, a micro-bubble air flotation device and a deep water treatment device after reaching the standard through the pipeline, and water separated by the centrifugal separation device and floating oil separated by the micro-bubble air flotation device enter a dirty oil inlet pipeline through the pipeline respectively. The invention carries out auxiliary treatment on the sump oil through the two-stage high-frequency pulse treatment device, obviously reduces the energy consumption and the using amount of the demulsifier in the conventional oil-water separation system, has obvious dehydration and desanding effects, and has excellent sewage treatment effect, simple process, convenient operation and low treatment cost.
Description
Technical Field
The invention relates to the technical field of water-containing sump oil treatment, in particular to an oil-water-sand three-phase separation system and a separation method.
Background
It is known that petroleum-based oil materials such as crude oil, clean-up tank slop oil, tanker cleaning slop oil, and collected marine spill oil, which have just been produced, contain a large amount of water and sometimes a certain amount of silt. The traditional crude oil treatment generally adopts chemical agents for demulsification, sedimentation, heating and the like, and needs enough agent amount, demulsification time and sedimentation separation time, the whole process has long treatment flow, large equipment scale, large heat energy and agent consumption and high comprehensive treatment cost.
The high-frequency pulse oil-water separation technology is an advanced oilfield produced liquid treatment technology appearing in recent years, replaces the complicated process of the traditional crude oil purification process, and can realize the high-efficiency purification treatment of crude oil without adding a demulsifier by using a set of high-frequency pulse oil-water separation device. However, the treatment effect of the oil-water separation system adopting high-frequency pulses at present is not ideal, the treated oil cannot directly enter an oil refining device for processing, secondary treatment is often needed, the treatment cost is increased, and the treated water cannot reach the discharge standard.
Disclosure of Invention
The invention aims to provide an oil-water-sand three-phase separation system and a separation method which are simple in structure and low in treatment cost, and solves the technical problems that in the prior art, the treatment cost is high, and treated water cannot reach the discharge standard.
In order to achieve the purpose, the invention adopts the following technical scheme: an oil-water-sand three-phase separation system comprises a primary high-frequency pulse treatment device, wherein dirty oil and a demulsifier are mixed and then enter the primary high-frequency pulse treatment device through a pipeline, oil treated by the primary high-frequency pulse treatment device enters a centrifugal separation device through a pipeline, sewage treated by the primary high-frequency pulse treatment device is mixed with an inverse demulsifier and then sequentially passes through a secondary high-frequency pulse treatment device, a micro-bubble air floatation device and a deep water treatment device through pipelines to reach the standard and is discharged outside, and water separated by the centrifugal separation device and floating oil separated by the micro-bubble air floatation device respectively enter a dirty oil inlet pipeline through pipelines;
the addition proportion of the demulsifier is 0.1-0.5% of the weight of the sump oil; the addition proportion of the reverse demulsifier is 0.05-0.2% of the weight of the sewage.
As an improvement of the invention, the microbubble air flotation device comprises a first-stage microbubble air flotation device and a second-stage microbubble air flotation device which are connected in series.
As an improvement of the invention, a membrane purification device is also arranged on a pipeline between the micro-bubble air flotation device and the deep water treatment device.
As an improvement of the invention, a first pipeline mixer for uniformly mixing the dirty oil and the demulsifier is arranged on the dirty oil inlet pipeline; and a second pipeline mixer for uniformly mixing the sewage and the reverse demulsifier is arranged on the pipeline between the primary high-frequency pulse treatment device and the secondary high-frequency pulse treatment device.
The invention also provides a separation method by using the oil-water-sand three-phase separation system, which comprises the following steps:
a) adding a demulsifier into a dirty oil inlet pipeline, mixing dirty oil with the demulsifier, then feeding the mixture into a primary high-frequency pulse treatment device, and then performing primary static pulse treatment in the primary high-frequency pulse treatment device for five to ten minutes, wherein the adding proportion of the demulsifier is 0.1 to 0.5 percent of the weight of the dirty oil;
b) the dirty oil after the first-stage static pulse treatment is settled for eight to twelve hours, silt and sewage are separated from the bottom of the first-stage high-frequency pulse treatment device after settlement treatment, the dehydrated oil enters a centrifugal separation device for further dehydration, the oil separated by the centrifugal separation device directly enters an oil refining device for processing, and the separated water enters a dirty oil inlet pipeline through a pipeline;
c) adding a reverse demulsifier into a sewage inlet pipeline of the secondary high-frequency pulse treatment device, mixing the sewage with the reverse demulsifier, then feeding the mixed sewage into the secondary high-frequency pulse treatment device, and then performing secondary static pulse treatment in the secondary high-frequency pulse treatment device for five to ten minutes, wherein the addition proportion of the reverse demulsifier is 0.05 to 0.2 percent of the weight of the sewage;
d) the sewage treated by the secondary high-frequency pulse treatment device enters a micro-bubble air floating device, and floating oil separated by the micro-bubble air floating device enters a dirty oil inlet pipeline through a pipeline;
e) the water separated by the micro-bubble air flotation device enters the deep water treatment device through a pipeline for deep treatment and then is discharged after reaching the standard.
As an improvement of the invention, the microbubble air flotation device comprises a first-stage microbubble air flotation device and a second-stage microbubble air flotation device which are connected in series.
As an improvement of the invention, a membrane purification device is also arranged on a pipeline between the micro-bubble air flotation device and the deep water treatment device.
As an improvement of the invention, a first pipeline mixer for uniformly mixing the dirty oil and the demulsifier is arranged on the dirty oil inlet pipeline; and a second pipeline mixer for uniformly mixing the sewage and the reverse demulsifier is arranged on the pipeline between the primary high-frequency pulse treatment device and the secondary high-frequency pulse treatment device.
The invention has the beneficial effects that: an oil-water-sand three-phase separation system, the dirty oil enters the first-class high-frequency pulse processing unit through the pipeline after mixing with demulsifier, break the emulsion of "water-in-oil" in the dirty oil through the demulsifier, make the dirty oil mixed with demulsifier carry on the high-frequency pulse treatment in the first-class high-frequency pulse processing unit, the oil treated by the first-class high-frequency pulse processing unit enters the centrifugal separation unit to separate through the pipeline again, the water content in the oil after the centrifugal separation unit separation is reduced to below 0.3%, the solid impurity content is reduced to below 0.1%, can enter the oil refining plant to process directly, do not need the secondary treatment, has saved the treatment cost; the sewage treated by the primary high-frequency pulse treatment device is mixed with a reverse demulsifier and then enters a secondary high-frequency pulse treatment device through a pipeline, the emulsion of oil-in-water in the sewage is demulsified by the reverse demulsifier, so that the sewage mixed with the reverse demulsifier is subjected to high-frequency pulse treatment in the secondary high-frequency pulse treatment device, and clear water treated by the secondary high-frequency pulse treatment device sequentially passes through a micro-bubble air floatation device and a deep water treatment device through the pipeline and is discharged to the outside, wherein the oil content in the clear water is reduced to below 5ppm, and the COD content is reduced by 95%. The water separated by the centrifugal separation device and the floating oil separated by the micro-bubble air flotation device respectively enter a dirty oil inlet pipeline through pipelines to be mixed into dirty oil for retreatment, so that the phenomenon that the floating oil is discharged outside to pollute the environment is avoided.
The addition proportion of the demulsifier is 0.1-0.5% of the weight of the sump oil, and the addition proportion of the reverse demulsifier is 0.05-0.2% of the weight of the sewage. The total dosage of the demulsifier and the reverse demulsifier is reduced by more than 50 percent compared with the dosage of the demulsifier in the conventional demulsification dehydration method, the treatment effect reaches the optimal state, and the cost for treating each ton of water-containing sump oil is reduced to below 20 yuan.
Further, the microbubble air flotation device comprises a first-stage microbubble air flotation device and a second-stage microbubble air flotation device which are connected in series. Through the arrangement of the two-stage micro-bubble air flotation device arranged in series, the COD content and the oil content in the sewage are further improved.
Furthermore, a first pipeline mixer for uniformly mixing the dirty oil and the demulsifier is arranged on the dirty oil inlet pipeline; and a second pipeline mixer for uniformly mixing the sewage and the reverse demulsifier is arranged on the pipeline between the primary high-frequency pulse treatment device and the secondary high-frequency pulse treatment device. Through the setting of first pipeline mixer and second pipeline mixer, make that sump oil and demulsifier and sewage and opposition demulsifier mix more abundant, further improved the treatment effect, improved work efficiency.
The invention also provides a separation method by using the oil-water-sand three-phase separation system, and the oil-water-sand three-phase separation system has corresponding beneficial effects, and specific reference can be made to the foregoing description, and details are not repeated herein.
In conclusion, the invention carries out auxiliary treatment on the sump oil through the two-stage high-frequency pulse treatment device, obviously reduces the energy consumption and the dosage of the demulsifier in the conventional oil-water separation system, has obvious dehydration and desanding effects, and has excellent sewage treatment effect, simple process, convenient operation and low treatment cost.
Drawings
FIG. 1 is a schematic view of the overall structure of a three-phase oil-water-sand separation system according to the present invention.
In the figure: 1. a control valve; 2. a flow meter; 3. a primary high-frequency pulse processing device; 4. a centrifugal separation device; 5. a secondary high-frequency pulse processing device; 6. a first-stage micro-bubble air floating device; 7. a secondary micro-bubble air floating device; 8. membrane purification device, 9, advanced water treatment facilities.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.
It should be noted that the terms of orientation such as up and down in the embodiments of the present invention are only relative concepts or are referred to a normal use state of the product, and should not be considered as limiting.
As shown in fig. 1, the oil-water-sand three-phase separation system comprises a primary high-frequency pulse treatment device 3, a centrifugal separation device 4, a secondary high-frequency pulse treatment device 5, a primary micro-bubble air flotation device 6, a secondary micro-bubble air flotation device 7, a membrane purification device 8 and a deep water treatment device 9.
And a demulsifier inlet is formed on the dirty oil inlet pipeline, and is preferably arranged at a position close to the primary high-frequency pulse processing device 3. The demulsifier conveying pipeline is provided with a control valve 1 for controlling the on-off of materials, the dirty oil inlet pipeline is provided with a flowmeter 2 and a control valve 1 for controlling the on-off of materials, wherein the control valve 1 on the dirty oil inlet pipeline is arranged at the upstream of the control valve 1 on the demulsifier conveying pipeline, in figure 1, the lower end is the upstream, and the lower end is the downstream. The dirty oil is mixed with the demulsifier and then enters the primary high-frequency pulse treatment device 3 through the pipeline, the demulsifier is used for demulsifying the water-in-oil emulsion in the dirty oil, the dirty oil mixed with the demulsifier is subjected to high-frequency pulse treatment in the primary high-frequency pulse treatment device 3, the oil treated by the primary high-frequency pulse treatment device 3 enters the centrifugal separation device 4 through the pipeline for oil-water separation, the water content in the oil separated by the centrifugal separation device 4 is reduced to be less than 0.3 percent, and the solid impurity content is reduced to be less than 0.1 percent, so that the dirty oil can directly enter an oil refining device for processing without secondary treatment, and the treatment cost is saved.
An inverted demulsifier inlet is arranged on the sewage inlet pipeline between the primary high-frequency pulse treatment device 3 and the secondary high-frequency pulse treatment device 5, and preferably, the inverted demulsifier inlet is arranged at a position close to the secondary high-frequency pulse treatment device 5. The reverse demulsifier conveying pipeline is provided with a control valve 1 for controlling the on-off of materials, the sewage inlet pipeline is provided with a flow meter 2 and a control valve 1 for controlling the on-off of materials, wherein the control valve 1 on the sewage inlet pipeline is provided with the upstream of the control valve 1 on the reverse demulsifier conveying pipeline. The sewage treated by the first-stage high-frequency pulse treatment device 3 is mixed with an inverse demulsifier and then enters a second-stage high-frequency pulse treatment device 5 through a sewage inlet pipeline, the emulsion of oil-in-water in the sewage is demulsified through the inverse demulsifier, so that the sewage mixed with the inverse demulsifier is subjected to high-frequency pulse treatment in the second-stage high-frequency pulse treatment device 5, and the clean water treated by the sewage treated by the second-stage high-frequency pulse treatment device 5 sequentially passes through a first-stage micro-bubble air flotation device 6, a second-stage micro-bubble air flotation device 7, a membrane purification device 8 and a deep water treatment device 9 through pipelines and is discharged to the outside, wherein the first-stage micro-bubble air flotation device 6 and the second-stage micro-bubble air flotation device 7 are connected in series. The water separated by the centrifugal separation device 4 and the floating oil separated by the micro-bubble air flotation device respectively enter the dirty oil inlet pipeline through the pipeline and are mixed into the dirty oil for retreatment, so that the phenomenon that the floating oil is discharged outside to pollute the environment is avoided.
In the process of treating the dirty oil, the demulsifier can be conveniently added into the dirty oil inlet pipeline and the reverse demulsifier can be conveniently added into the sewage inlet pipeline by operating the control valve 1, wherein the adding proportion of the demulsifier is 0.1-0.5 percent of the weight of the dirty oil, and the adding proportion of the reverse demulsifier is 0.05-0.2 percent of the weight of the sewage. The total dosage of the demulsifier and the reverse demulsifier is reduced by more than 50 percent compared with the dosage of the demulsifier in the conventional demulsification and dehydration method, namely the total dosage of the demulsifier and the reverse demulsifier of the invention is less than half of the dosage of the demulsifier in the conventional demulsification and dehydration method, the treatment effect reaches the optimal state, the cost for treating each ton of water-containing sump oil is reduced to less than 20 yuan, and the treatment cost of the sump oil is greatly saved.
Preferably, a first pipeline mixer for uniformly mixing the dirty oil and the demulsifier is arranged on the dirty oil inlet pipeline; a second pipeline mixer for uniformly mixing the sewage and the reverse demulsifier is arranged on the sewage inlet pipeline between the first-stage high-frequency pulse treatment device 3 and the second-stage high-frequency pulse treatment device 5.
It should be noted that the primary high-frequency pulse processing device 3, the centrifugal separation device 4, the secondary high-frequency pulse processing device 5, the primary micro-bubble air flotation device 6, the secondary micro-bubble air flotation device 7, the membrane purification device 8 and the deep water treatment device 9 all belong to existing mature equipment, and detailed description is omitted here.
The invention also discloses a separation method by using the oil-water-sand three-phase separation system, which comprises the following steps:
a) adding a demulsifier into a dirty oil inlet pipeline, mixing dirty oil with the demulsifier, then feeding the mixture into a primary high-frequency pulse treatment device 3, and then performing primary static pulse treatment in the primary high-frequency pulse treatment device 3 for five to ten minutes, wherein the adding proportion of the demulsifier is 0.1 to 0.5 percent of the weight of the dirty oil;
b) the dirty oil after the first-stage static pulse treatment is settled for eight to twelve hours, silt and sewage are separated from the bottom of the first-stage high-frequency pulse treatment device 3 after settlement treatment, the dehydrated oil enters the centrifugal separation device 4 for further dehydration, the oil separated by the centrifugal separation device 4 directly enters the oil refining device for processing, and the separated water enters the dirty oil inlet pipeline through the pipeline and is mixed into the dirty oil for retreatment;
c) adding a reverse demulsifier into a sewage inlet pipeline of the secondary high-frequency pulse treatment device 5, mixing the sewage with the reverse demulsifier, then feeding the mixed sewage into the secondary high-frequency pulse treatment device 5, and then performing secondary static pulse treatment in the secondary high-frequency pulse treatment device 5 for five to ten minutes, wherein the addition proportion of the reverse demulsifier is 0.05 to 0.2 percent of the weight of the sewage;
d) the sewage treated by the secondary high-frequency pulse treatment device 5 enters a micro-bubble air flotation device, and the floating oil separated by the micro-bubble air flotation device enters a dirty oil inlet pipeline through a pipeline and is mixed into dirty oil for retreatment;
e) the water separated by the micro-bubble air flotation device enters the deep water treatment device 9 through a pipeline for deep treatment and then is discharged after reaching the standard.
Preferably, in order to further improve the COD content and the oil content in the sewage, the microbubble air flotation device comprises a first-stage microbubble air flotation device 6 and a second-stage microbubble air flotation device 7 which are connected in series, and a membrane purification device 8 is further arranged on a pipeline between the second-stage microbubble air flotation device 7 and the deep water treatment device 9.
Preferably, in order to further improve the working efficiency of the sump oil treatment, a first pipeline mixer for uniformly mixing the sump oil and the demulsifier is arranged on the sump oil inlet pipeline; and a second pipeline mixer for uniformly mixing the sewage and the reverse demulsifier is arranged on the sewage inlet pipeline between the first-stage high-frequency pulse treatment device and the second-stage high-frequency pulse treatment device.
The oil-water-sand three-phase separation system and the oil-water-sand three-phase separation method provided by the invention are introduced in detail, a specific example is applied in the description to explain the structural principle and the implementation mode of the invention, and the above example is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (8)
1. The utility model provides an oil water sand three-phase separation system which characterized in that: the sewage water treatment device comprises a first-stage high-frequency pulse treatment device, wherein dirty oil and an emulsion breaker are mixed and then enter the first-stage high-frequency pulse treatment device through a pipeline, the oil treated by the first-stage high-frequency pulse treatment device enters a centrifugal separation device through a pipeline, the sewage water treated by the first-stage high-frequency pulse treatment device is mixed with an inverse emulsion breaker and then is discharged out of a second-stage high-frequency pulse treatment device, a micro-bubble air flotation device and a deep water treatment device through pipelines after reaching the standard, and water separated by the centrifugal separation device and floating oil separated by the micro-bubble air flotation device respectively enter a dirty oil inlet pipeline through pipelines;
the addition proportion of the demulsifier is 0.1-0.5% of the weight of the sump oil; the addition proportion of the reverse demulsifier is 0.05-0.2% of the weight of the sewage.
2. The oil-water-sand three-phase separation system as claimed in claim 1, wherein: the microbubble air flotation device comprises a first-stage microbubble air flotation device and a second-stage microbubble air flotation device which are connected in series.
3. The oil-water-sand three-phase separation system as claimed in claim 1, wherein: and a membrane purification device is also arranged on a pipeline between the micro-bubble air flotation device and the deep water treatment device.
4. The oil-water-sand three-phase separation system as claimed in claim 1, wherein: a first pipeline mixer for uniformly mixing the dirty oil and the demulsifier is arranged on the dirty oil inlet pipeline; and a second pipeline mixer for uniformly mixing the sewage and the reverse demulsifier is arranged on the pipeline between the primary high-frequency pulse treatment device and the secondary high-frequency pulse treatment device.
5. A separation method using the oil-water-sand three-phase separation system as defined in any one of claims 1 to 4, comprising the steps of:
a) adding a demulsifier into a dirty oil inlet pipeline, mixing dirty oil with the demulsifier, then feeding the mixture into a primary high-frequency pulse treatment device, and then performing primary static pulse treatment in the primary high-frequency pulse treatment device for five to ten minutes, wherein the adding proportion of the demulsifier is 0.1 to 0.5 percent of the weight of the dirty oil;
b) the dirty oil after the first-stage static pulse treatment is settled for eight to twelve hours, silt and sewage are separated from the bottom of the first-stage high-frequency pulse treatment device after settlement treatment, the dehydrated oil enters a centrifugal separation device for further dehydration, the oil separated by the centrifugal separation device directly enters an oil refining device for processing, and the separated water enters a dirty oil inlet pipeline through a pipeline;
c) adding a reverse demulsifier into a sewage inlet pipeline of the secondary high-frequency pulse treatment device, mixing the sewage with the reverse demulsifier, then feeding the mixed sewage into the secondary high-frequency pulse treatment device, and then performing secondary static pulse treatment in the secondary high-frequency pulse treatment device for five to ten minutes, wherein the addition proportion of the reverse demulsifier is 0.05 to 0.2 percent of the weight of the sewage;
d) the sewage treated by the secondary high-frequency pulse treatment device enters a micro-bubble air floating device, and floating oil separated by the micro-bubble air floating device enters a dirty oil inlet pipeline through a pipeline;
e) the water separated by the micro-bubble air flotation device enters the deep water treatment device through a pipeline for deep treatment and then is discharged after reaching the standard.
6. The separation method according to claim 5, characterized in that: the microbubble air flotation device comprises a first-stage microbubble air flotation device and a second-stage microbubble air flotation device which are connected in series.
7. The separation method according to claim 5, characterized in that: and a membrane purification device is also arranged on a pipeline between the micro-bubble air flotation device and the deep water treatment device.
8. The separation method according to claim 5, 6 or 7, characterized in that: a first pipeline mixer for uniformly mixing the dirty oil and the demulsifier is arranged on the dirty oil inlet pipeline; and a second pipeline mixer for uniformly mixing the sewage and the reverse demulsifier is arranged on the pipeline between the primary high-frequency pulse treatment device and the secondary high-frequency pulse treatment device.
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| CN202111587402.2A CN114249471A (en) | 2021-12-23 | 2021-12-23 | Oil-water-sand three-phase separation system and separation method |
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| CN202111587402.2A CN114249471A (en) | 2021-12-23 | 2021-12-23 | Oil-water-sand three-phase separation system and separation method |
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| CN104016452A (en) * | 2014-06-10 | 2014-09-03 | 中国矿业大学 | Treatment process of oilfield produced water |
| CN111394118A (en) * | 2020-05-18 | 2020-07-10 | 宫传奇 | Ageing oil and fatlute minimizing crude oil recovery processing integration sled dress device |
| CN112174466A (en) * | 2020-10-27 | 2021-01-05 | 中石化石油工程技术服务有限公司 | Oil refining sludge reduction comprehensive treatment method |
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2021
- 2021-12-23 CN CN202111587402.2A patent/CN114249471A/en active Pending
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|---|---|---|---|---|
| CN104016452A (en) * | 2014-06-10 | 2014-09-03 | 中国矿业大学 | Treatment process of oilfield produced water |
| CN111394118A (en) * | 2020-05-18 | 2020-07-10 | 宫传奇 | Ageing oil and fatlute minimizing crude oil recovery processing integration sled dress device |
| CN112174466A (en) * | 2020-10-27 | 2021-01-05 | 中石化石油工程技术服务有限公司 | Oil refining sludge reduction comprehensive treatment method |
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