With the acceleration of oilfield development process, oilfield wastewater is increasing, which seriously pollutes the ecological environment. How to effectively treat oilfield wastewater has become a headache for water treatment experts. The successful development of self-cleaning filter has effectively solved its problems.
The self-cleaning filter is a kind of precision equipment that uses the filter screen to directly intercept the impurities in the water, remove the suspended solids and particles in the water, reduce the turbidity, purify the water quality, reduce the generation of system dirt, bacteria, algae and rust, so as to purify the water quality and protect the normal operation of other equipment in the system. The water enters the self-cleaning filter body from the water inlet. Due to the intelligent (PLC, PAC) design, the system can automatically identify the deposition degree of impurities and signal the blowdown valve for automatic blowdown.
Oilfield sewage mainly includes crude oil dewatering water (also known as oilfield produced water), drilling sewage and other types of oily sewage in the station. There are many ways to treat oilfield sewage according to oilfield production, environment and other factors. When the oilfield needs water injection, the oilfield sewage is reinjected into the formation after treatment. At this time, many indicators such as suspended solids and oil in the water should be strictly controlled to prevent damage to the formation. Most oil production units are concentrated in arid areas, and there is a serious lack of water resources. How to turn the sewage produced in the process of oil production into treasure has very important practical significance.
The self-cleaning filter has the characteristics of stable effluent quality, low operation cost, small floor area and long service life. Under the effective treatment of self-cleaning filter, oilfield wastewater has been well treated.