Oil and gas producing enterprises at all stages of the life cycle have a negative impact on the components of the natural environment: atmosphere, soil, surface water bodies and groundwater. One of the serious environmental problems is the formation of drilling sludge during the construction of wells for oil and gas production. Some enterprises have debts on illiquid sludge barns. One of the reasons for this state of affairs is the shortcomings in the calculation of the actual volumes of sludge formed during drilling. The analysis of the existing methods for calculating drilling waste, literature sources and available materials for calculating the volume of drilling mud has revealed certain inaccuracies (errors) in calculating the volume of drilling mud and some unaccounted factors associated with the operation of drilling tools. A computational experiment was carried out and, using the example of one of the oil and gas producing enterprises, a comparison of the volumes of drilling sludge was made, taking into account possible errors, and a discrepancy of 181 m3 of drilling sludge per well was revealed. The elimination of errors in the calculation of waste generation standards and limits on their placement during the construction of wells will allow to adjust the volume of drilling waste generated and prevent the occurrence of possible environmental problems at the sites of well construction.
The territory of the Russian Federation has various underground resources, among other things the largest reserves of fuel resources of oil and gas, in light of this oil and gas production is especially developed in Russia. Oil and gas production is one of the environmentally hazardous types of economic activity and has a negative impact on the natural environment, by means of disturbance of soils condition, pollution of surface watercourses and underground water, emissions of pollutants into the atmosphere (hydrocarbons, nitrogen dioxide, sulfur oxide, carbon monoxide, solid pollutants, etc.). The chemical pollutions, as a result of the ingress of the pollutants in the time of combustion of associated gas or the seepage of oil slimes through the walls of unutilized sludge pits, are dangerous. Russia has a well-developed ecological monitoring system. However, often there are not enough investigations as to the changing state of environmental components in developing oil production centers. This is due to the need for further development of the monitoring system. Analysis of existing monitoring stations data for the environmental conditions will allow to determine the trends of pollution changes and develop recommendations for improving ecological monitoring system in oil and gas production areas.
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