Abstract
The place of modern gas production complex in Ukraine gas supply system is considered and the oil and gas complex is analyzed in general. The basic stages of the the well life cycle are considered and represented by the scheme, namely: geological exploration of oil and gas mineral resources (searching, exploration), research and industrial development of oil and gas exploitation , field conservation (of development object), the field output (development object). On the bases of the life cycle analysis of the environmental aspects of well impact on the environment (on ther stage of the geological-research works, drilling and exploitation) is carried out. Potential sources of pollutants to environment are represented. As an example, a Bilousivske gas condensate field has been considered. The analysis of the main sources of hazardous emergency situations is fulfilled and potential territorial risk for gas condensate field has been calculated.
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