Formation and treatment features of oil-fields waste water

Moscow State University of Civil Engineering (MGSU) National Research University, 129337, Moscow, Russia

Abstract

The oil-fields development and operation can be associated with high water consumption and waste water emission. Most of the pollutants come from drilling and formation waters. At the same time, a significant proportion of solid dispersed pollutants is accounted for drilling waste water. Formation waters are the main source of oil contaminants. The technological processes of oil-field waste water treatment are based on gravity separation. In the context of increasing the environmental requirements for production activities, especially in the regions with low average annual temperatures and, accordingly, slow processes of ecosystems’ self-cleaning, the problem of environment reliable protection arises. Gravity separation methods cannot provide the required quality of waste water treatment. Modern achievements in the field of baromembrane technologies and high salinity of waste water make it most effective and expedient to use membrane and electrochemical methods of waste water treatment.