The assessment of groundwater quality on the example of the oil field of Udmurtia

Krasnoperova Svetlana Anatolyevna

The article discusses the problem of groundwater contamination as a result of the activities of the oil industry. Provides an assessment of the hydrogeological protection and the quality of groundwater and springs dedicated to the oil fields of the Udmurt Republic. According to studies in groundwater within the license area, one of the fields in the specified region detected high concentrations of petroleum products, indicating a relatively low degree of hydrogeological protection of underground hydrosphere. In this regard, was highlighted category degree of protection of underground waters of oil fields on the following parameters: depth of groundwater level (capacity of the aeration zone), the structure and lithology of aeration zone rocks, the capacity of low permeable sediments in section of the aeration zone, porosity and permeability of aeration zone rocks of low permeability sediments. It is revealed that main parts, namely, oil, gzu, UPN are located in areas with I-III categories of protection of ground waters that are a priority for planning and carrying out conservation activities for the protection of the environment and sustainability components of geosystems. To determine the nature of migration processes of oil and oil products and other contaminants was sampled during the survey of the underground water springs in the five-kilometer zone of influence of the field. Chemical analysis of the studied water quality on the following parameters: bicarbonates, chlorides, sulphates, hardness, calcium, magnesium, pH, total iron and petroleum products. It is revealed that samples of spring water meet the standards of quality of drinking water according to SANITARY regulations and standards.

Keywords:oil, field, groundwater, hydrogeological protection, environmental pollution.