Software and Modeling Tools for Assessment of Environmental Consequences of Open Flowing of Oil Wells

Oil production is environmentally hazardous economic activity. There is a possibility of uncontrolled or poorly controlled phenomena and processes classified as accidents despite constant improvement of equipment, tools and systems for emergency diagnostics and protection during the life cycle of oil wells. This poses special danger to environment and to the personnel of drilling rigs and surrounding areas population. It is necessary to carry out their preventive forecast in order to effectively prevent such emergencies. The forecasts include determining area of pollution and the corresponding environmental risks. Mathematical modeling of processes in formations, wells and components of the natural environment is basis of such research. The authors developed mathematical tools for estimating pollution of the earth's surface due to emergency oil flowing wells. The tool takes into account physicochemical characteristics of engineering geological environment and fluid, parameters of the surrounding area and meteorological factors. Software-modeling complex is developed on the basis of the mathematical apparatus. This apparatus includes: subsystem of database and knowledge management, mathematical support, subsystem of results visualization and subsystem of decision support. This complex is an effective tool to ensure rational operation of oil wells and improving the environmental safety of oil production.