ASPECTS OF ECOLOGY SAFETY AT OPERATING THE FRESH GROUND WATERS INTAKE FACILITIES FOR RESERVOIR PRESSURE MAINTENANCE PURPOSES IN OIL FIELDS OF WEST SIBERIA

Abstract

The aspects of ecology safety related to operation of underground fresh waters intake facilities aimed at maintenance of reservoir pressure at development of oil fields are discussed in the article. When speaking about a change of the fresh underground waters state in the process of their use the authors imply the produced water quality degradation (pollution of productive water-bearing intervals); lowering of the water level in the reservoir (damage of hydrodynamic conditions, depression cone formation). The main, most significant factors determining the change, mentioned above, include inadequacy to meet the normative requirements toward the technical condition of wells of different purposes and the adjacent territory, absence of systematic control of the produced water quality and the impact of the produced fluid (water, oil, gas) quantity on the level conditions of the underground fresh waters. The suggested ways for optimization of these factors and the methods of control will permit to improve the ecology safety of the discussed above waters use.