Self-cleaning filtration can also be used in oilfield produced water treatment
Self-cleaning filter has a wide range of applications in many industries, oilfield produced water treatment can also be used in the self-cleaning filter, it can be very good to remove impurities in the water, and then recycled filtered water into the ground, and will not pollute the quality of groundwater. So, how to use self-cleaning filters in oilfield produced water treatment? Let's learn more about it!
Oil field produced water is: underground oil, thick distribution layer, drilling a well will take oil, less distribution, need to use pumping unit pumping. More scattered, or after the oil recovery, here and there, there is no other way to recover, use water injection method. Water injection is to inject water into the oil layer, adding surfactants and other additives in the water to change the surface tension of water and the hydrophilicity of oil. This allows the oil and water to begin to coalesce and form and pump to the surface.
In addition to large amounts of organic pollutants that are difficult to degrade, the water also has a high concentration of ions, because groundwater itself has a much higher concentration of salts than surface water. The treatment process is mainly hydrolytic acidification, anaerobic and aerobic treatment, but the ratio of NP should be adjusted. Produced water after treatment needs to be recycled into the ground, and the amount is relatively large. If not properly treated, groundwater pollution will be even greater.
In a word, the produced water of each oilfield has the characteristics of high water temperature, high salinity, high content of suspended matter, complex ionic components and various types of organic matter.
Self-cleaning filter is a kind of filter screen can be used to directly intercept impurities in the liquid, floating matter, particulate matter, while reducing the turbidity of water, reduce dirt, at the same time to ensure the normal operation of the equipment behind, it has the characteristics of automatic sewage. Raw water enters the filter from the water inlet, filters out the large particles of impurities through the coarse filter element assembly, and then reaches the fine filter screen. After the small particles of impurities are filtered through the fine filter screen, the water is discharged from the outlet.
The oil field produced water is filtered by this working principle of the self-cleaning filter. In the whole process, it can quickly separate the impurities in the water. After the filtered water is injected into the ground, it plays a good role in protecting the water resources.
