CN219429833U - Oilfield fracturing fluid advanced treatment equipment - Google Patents
Oilfield fracturing fluid advanced treatment equipment Download PDFInfo
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- CN219429833U CN219429833U CN202222936298.XU CN202222936298U CN219429833U CN 219429833 U CN219429833 U CN 219429833U CN 202222936298 U CN202222936298 U CN 202222936298U CN 219429833 U CN219429833 U CN 219429833U
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- fracturing fluid
- advanced treatment
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- oilfield fracturing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Abstract
The utility model relates to the technical field of oilfield fracturing fluid treatment, in particular to oilfield fracturing fluid advanced treatment equipment, which is characterized in that a nano-pore ceramic membrane of a core component of the oilfield fracturing fluid advanced treatment equipment can filter macromolecular pollutants through a series of equipment such as an adjusting tank, oil removal, electric flocculation, coagulation flocculation precipitation, air floatation, an ozone ceramic membrane, biological activated carbon, high-pressure membrane filtration and the like, has the characteristics of long service life and high water yield, is provided with a medicine washing system for treating the membrane pollution as required, and can automatically operate the treatment equipment by an automatic control system, reduce the operation cost, enable the process equipment to be made into a container package, integrate the whole equipment, standardize the size and facilitate transition transportation.
Description
Technical Field
The utility model relates to the technical field of oilfield fracturing fluid treatment, in particular to oilfield fracturing fluid deep treatment equipment.
Background
The fracturing fluid is a heterogeneous unstable chemical system formed by a plurality of additives according to a certain proportion, is a working fluid used when the fracturing modification is carried out on an oil-gas layer, and is generally treated by a series of treatment equipment such as an oil separation system, a coagulating sedimentation system, biochemical aeration, a secondary sedimentation system, an organic film filtration and the like in the prior art, but the traditional treatment equipment has some disadvantages such as lower oil removal effect; poor biochemical effect and unstable turbidity of the effluent of the secondary sedimentation system; the organic film is easy to be polluted and difficult to regenerate.
For example, the Chinese patent oilfield fracturing fluid treatment system (publication No. CN 205773746U) has the following technical scheme: the sewage system and the dosing tank are both communicated to the stirring tank; the sludge inlet of the sludge filter pressing device is communicated with the stirring box, and the sewage outlet is communicated with the secondary filtering device; the secondary filter device comprises a quartz sand filter and a fiber bundle filter which are communicated with each other, a sewage outlet of the sludge press filtration device is communicated into the quartz sand filter, and the fiber bundle filter is communicated into the clean water tank. Although a plurality of filtering devices, quartz sand filters and fiber bundle filters are adopted in the technical scheme, the problems that the biochemical effect is poor and the turbidity of the effluent of the secondary sedimentation system is unstable still cannot be solved; the organic film is easy to be polluted and difficult to regenerate.
Disclosure of Invention
In order to solve the problems, the utility model provides oil field fracturing fluid advanced treatment equipment which has good oil removal effect, high-efficiency oxidative decomposition of organic matters, removal of membrane pollution, long-term automatic operation and reduction of operation cost.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an oil field fracturing fluid advanced treatment device, comprises a pretreatment system, an oil separation system, a flocculation treatment device, an air floatation system, an ozone ceramic membrane system, a biological activated carbon system and a high-pressure membrane which are sequentially connected in sequence through a conveying channel, wherein
The pretreatment system is used for pretreating the waste liquid to adjust the physical characteristics of the waste liquid;
the oil separation system is used for removing oil substances;
the flocculation treatment device is used for promoting soluble calcium and magnesium ions in water to nucleate and crystallize into tiny granular crystals, so that the water hardness is reduced, the waste liquid is subjected to flocculation treatment, and solid suspended matters with larger specific gravity are removed through the precipitation system;
an air floatation system; the floating slag is removed after being brought to the surface of the air floatation system by releasing micro-nano bubbles to adhere to floccules in water;
the ozone ceramic membrane system utilizes the combination of the ceramic membrane with the nanometer aperture and ozone to treat the wastewater, and converts the organic matters difficult to degrade into small molecular organic matters which are easy to be biodegraded;
the biological activated carbon system takes activated carbon as a biological carrier for removing residual pollutants;
the high-pressure membrane system utilizes the reverse osmosis membrane with the nano-scale aperture to treat waste liquid and then reaches the water quality standard of farm irrigation.
Preferably, the flocculation treatment device comprises an electric flocculation system and a coagulating sedimentation system, wherein the input end of the electric flocculation system is connected with the output end of the oil separation system, the output end of the electric flocculation system is connected with the input end of the coagulating sedimentation system, and the output end of the coagulating sedimentation system is connected with the input end of the air floatation system.
Preferably, the system further comprises a drug wash system for periodically flushing the system with chemicals to remove residual contaminants from the system.
Preferably, the biological activated carbon system further comprises a backwash pump for water backwash of activated carbon.
Preferably, the air flotation system further comprises a mud scraper for hanging the flocculate and scum on the surface of the air flotation system.
Preferably, the pretreatment system comprises a clean water tank, a concentrated water tank, a second regulating system and a first regulating system which are sequentially connected through a conveying pipeline.
Preferably, the output end of the high-pressure membrane system is connected with the water collecting system through a conveying pipeline, and the conveying pipeline between the output end of the high-pressure membrane system and the water collecting system is connected with the second regulating system through a pipeline, so that the treated water body part returns to the second regulating system.
The beneficial effects of using the utility model are as follows:
1. the treatment system better ensures the removal of suspended matters by using the electric flocculation and coagulation flocculation precipitation process, reduces the conductivity of raw water and reduces the blockage condition of a pipeline.
2. The air floatation system improves the oil-water separation efficiency, has high oil removal rate, is suitable for the change of the oil content of incoming water, and has good operation effect.
3. The application of the ozone ceramic membrane system improves the biodegradability of the wastewater, and the biochemical effect of the subsequent units is better.
4. Compared with an organic membrane, the inorganic membrane has the advantages of better pollution resistance, higher membrane flux and longer service life.
Drawings
FIG. 1 is a schematic diagram of an oilfield fracturing fluid advanced treatment apparatus.
The reference numerals include:
11-a clean water tank, 12-a concentrated water tank, 13-a second regulating system, 14-a first regulating system, 21-an oil separation system, 22-an electric flocculation system, 23-a coagulating sedimentation system, 24-an air floatation system, 25-an ozone ceramic membrane system, 26-a biological activated carbon system, 27-a high-pressure membrane system, 31-a device room and 32-an ozone generation room,
33-dosing room, 34-oil storage barrel and 4-water collecting system.
Detailed Description
In order to make the objects, technical solutions and advantages of the present technical solution more apparent, the present technical solution is further described in detail below in conjunction with the specific embodiments. It should be understood that the description is only illustrative and is not intended to limit the scope of the present technical solution.
As shown in fig. 1, the oilfield fracturing fluid advanced treatment equipment comprises a pretreatment system, an oil separation system 21, a flocculation treatment device, an air floatation system 24, an ozone ceramic membrane system 25, a biological activated carbon system 26 and a high-pressure membrane which are sequentially connected through a conveying channel, wherein the pretreatment system comprises a clear water tank 11, a concentrated water tank 12, a second regulating system 13 and a first regulating system 14 which are sequentially connected through a conveying pipeline, oilfield fracturing fluid is stored through the clear water tank 11 and the concentrated water tank 12, when the oilfield fracturing fluid is required to be treated, the second regulating system 13 and the first regulating system 14 are mixed into water treated by the oilfield fracturing fluid advanced treatment equipment to carry out oilfield fracturing fluid concentration regulation, and then the water enters the oil separation system 21, and the oil separation system 21 pumps waste liquid into the oil separation tank by virtue of a raw water pump to carry out pretreatment, so that most of oily substances are removed in pretreatment of equipment waste liquid.
Preferably, the flocculation treatment device comprises an electric flocculation system 22 and a coagulating sedimentation system 23, wherein the input end of the electric flocculation system 22 is connected with the output end of the oil separation system 21, the output end of the electric flocculation system 22 is connected with the input end of the coagulating sedimentation system 23, and the output end of the coagulating sedimentation system 23 is connected with the input end of the air floatation system 24. In the electric flocculation system 22, reasonable electromagnetic waves are applied to a water convection pipeline in a specific frequency band by the electric flocculation system 22 through a high-frequency electronic generator, so that soluble calcium and magnesium ions in water are promoted to nucleate and crystallize into tiny granular crystals, and the water hardness is reduced; and a coagulating sedimentation system 23 for flocculating the waste liquid by adding a flocculating agent into the flocculation tank and removing solid suspended matters with larger specific gravity by the sedimentation tank.
The air floatation system 24 is used for scraping the scum by releasing micro-nano bubbles to adhere to the floccules in the water and bringing the scum to the surface of the air floatation tank.
The ozone ceramic membrane system 25 utilizes the combination of the ceramic membrane with the nanometer aperture and ozone to treat the wastewater, and converts the organic matters which are difficult to degrade into small molecular organic matters which are easy to be biodegraded through the synergistic effect of catalytic oxidation and the nanometer ceramic membrane.
A biological activated carbon system 26 that uses activated carbon as a biological carrier to remove remaining contaminants, a periodic backwash pump for water backwash of the activated carbon; and the chemical washing system is used for periodically treating ceramic membrane pollution to stabilize the flux of the ceramic membrane.
The high-pressure membrane system 27 is used for treating waste liquid by using a reverse osmosis membrane with a nano-scale aperture and then achieving the water quality standard of farm irrigation.
The oilfield fracturing fluid advanced treatment equipment provided by the technical scheme also comprises an automatic control system which is used for automatically controlling the operation of the treatment equipment, so that the manpower operation cost is reduced; the automatic control system comprises an oil separation tank body, an electric flocculation tank body, a coagulation flocculation precipitation tank body, an air flotation tank body, a membrane tank body, a biological activated carbon tank body, a high-pressure membrane tank body and the like which are used as a container and a reactor for coagulation reaction and ozone ceramic membranes.
The treatment equipment is also integrated with other regulating equipment required by the system, namely an equipment room 31, an ozone generation room 32, a dosing room 33 and an oil storage barrel 34, wherein the equipment 31 is internally provided with an electrified control device so as to realize automatic operation of the system. Ozone produced by the ozone generating room 32 is supplied to the ozone ceramic membrane system 25 for use by the ozone ceramic membrane system 25. The dosing chamber 33 stores necessary medicines and supplies them automatically. The oil storage tank 34 is used for storing waste such as waste oil discharged from the oil separation system 21 and the air flotation system 24.
Preferably, the output end of the high-pressure membrane system 27 is connected with the water collecting system 4 through a conveying pipeline, and the conveying pipeline between the output end of the high-pressure membrane system 27 and the water collecting system 4 is connected with the second regulating system 13 through a pipeline, so that the treated water body part returns to the second regulating system 13.
The application provides an oil field fracturing fluid advanced treatment process equipment, its core subassembly nanometer aperture ceramic membrane can filter macromolecular pollutant, and has long service life, the characteristics that the water yield is high to be equipped with medicine washing system and be used for handling the membrane pollution as required. The automatic control system can enable the processing equipment to automatically operate, and the operation cost is reduced. The process equipment can be made into a container package, so that the whole equipment is integrated, standardized in size and convenient for transferring and transporting.
The foregoing is merely exemplary of the present utility model, and those skilled in the art can make many variations in the specific embodiments and application scope according to the spirit of the present utility model, as long as the variations do not depart from the spirit of the utility model.
Claims (7)
1. An oilfield fracturing fluid advanced treatment device is characterized in that: comprises a pretreatment system, an oil separation system, a flocculation treatment device, an air floatation system, an ozone ceramic membrane system, a biological activated carbon system and a high-pressure membrane system which are sequentially connected in sequence through a conveying channel, wherein
The pretreatment system is used for pretreating the waste liquid to adjust the physical characteristics of the waste liquid;
the oil separation system is used for removing oil substances;
the flocculation treatment device is used for promoting soluble calcium and magnesium ions in water to nucleate and crystallize into tiny granular crystals, so that the water hardness is reduced, the waste liquid is subjected to flocculation treatment, and solid suspended matters with larger specific gravity are removed through the precipitation system;
an air floatation system; the floating slag is removed after being brought to the surface of the air floatation system by releasing micro-nano bubbles to adhere to floccules in water;
the ozone ceramic membrane system utilizes the combination of the ceramic membrane with the nanometer aperture and ozone to treat the wastewater, and converts the organic matters difficult to degrade into small molecular organic matters which are easy to be biodegraded;
the biological activated carbon system takes activated carbon as a biological carrier for removing residual pollutants;
the high-pressure membrane system utilizes the reverse osmosis membrane with the nano-scale aperture to treat waste liquid and then reaches the water quality standard of farm irrigation.
2. The oilfield fracturing fluid advanced treatment apparatus of claim 1, wherein: the flocculation treatment device comprises an electric flocculation system and a coagulating sedimentation system, wherein the input end of the electric flocculation system is connected with the output end of the oil separation system, the output end of the electric flocculation system is connected with the input end of the coagulating sedimentation system, and the output end of the coagulating sedimentation system is connected with the input end of the air floatation system.
3. The oilfield fracturing fluid advanced treatment apparatus of claim 1, wherein: the system also includes a drug wash system for periodically flushing the system with chemicals to remove residual contaminants from the system.
4. The oilfield fracturing fluid advanced treatment apparatus of claim 1, wherein: the biological activated carbon system also comprises a backwash pump, wherein the backwash pump is used for water backwash of the activated carbon.
5. The oilfield fracturing fluid advanced treatment apparatus of claim 1, wherein: the air flotation system also comprises a mud scraper which is used for hanging flocculating constituents and scum on the surface of the air flotation system.
6. The oilfield fracturing fluid advanced treatment apparatus of claim 1, wherein: the pretreatment system comprises a clear water tank, a concentrated water tank, a second regulating system and a first regulating system which are sequentially connected through a conveying pipeline.
7. The oilfield fracturing fluid advanced treatment apparatus of claim 6, wherein: the output end of the high-pressure membrane system is connected with the water collecting system through a conveying pipeline, and the conveying pipeline between the output end of the high-pressure membrane system and the water collecting system is connected with the second regulating system through a pipeline, so that the treated water body part returns to the second regulating system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222936298.XU CN219429833U (en) | 2022-11-04 | 2022-11-04 | Oilfield fracturing fluid advanced treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222936298.XU CN219429833U (en) | 2022-11-04 | 2022-11-04 | Oilfield fracturing fluid advanced treatment equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219429833U true CN219429833U (en) | 2023-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222936298.XU Active CN219429833U (en) | 2022-11-04 | 2022-11-04 | Oilfield fracturing fluid advanced treatment equipment |
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| Country | Link |
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| CN (1) | CN219429833U (en) |
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2022
- 2022-11-04 CN CN202222936298.XU patent/CN219429833U/en active Active
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