Study and application of PVDF tubular ultrafiltration membrane to water treatment in low permeability oilfields——taking Taixing Oilfield as an example

Based on characteristics of low permeability oilfield and ultra-low permeability oilfield, PVDF tubular ultrafiltration membrane has been developed, Laboratory fundamental research of this new approach has been carried out, and large scale field experiment is being performed in Jiangsu Taixing Oilfield. After water treatment using PVDF tubular ultrafiltration membrane, the water quality reaches the A1 standard of oilfield injection water (SY/T5329-1994), and meets the requirement of water injection in low permeability oilfield and ultra-low permeability oilfield.