fracturing flowback fluid treatment

Fracturing operation is the main method for the development of low-permeability reservoirs and unconventional oil and gas reservoirs. Through fracturing, the permeability of oil and gas reservoirs can be improved and plugging removal. The fracturing technology can tap the potential of oil wells in old areas, test new wells, increase production of single wells, and develop unconventional oil and gas. , It plays an important role in the development of shale gas. The composition of the fracturing flowback fluid is complex and contains a variety of pollutants. If not effectively treated, it will cause serious pollution to the regional environment. Commonly used methods for sewage treatment in oil and gas fields include flocculation sedimentation, filtration/adsorption, electrolysis, acid-base