During the projecting and development of the hydrocarbon supplies fields not only the technological factors (extraction levels, shale waters, amounts of water, shale pressure etc.) are important, but the influence on the environment too. The gas and oil extraction heavily influences all the components of nature. This is important for any field despite the time of development. This is very actual for West-Siberia, that has a lot of lakes and swamps on its’ territory.
The Bystrinskoe oil-gas-condensate field of Surgutneftegas PJSC has been under development for more than 40 years, and the first observations of the state of the environment were carried out in 1976 and were preliminary. Surface water quality was assessed. Regular studies on the assessment of the state of natural environments — air, surface water, including bottom sediments, soil cover — have been conducted since 1993. The state of the surrounding landscapes is also monitored. For more than 20 years of observation, it has been established that the content of the ingredients to be determined is within the limits of quality standards or corresponds to the natural (natural) background. Moreover, the content of the main ingredients associated with oil and gas production (oil products and chlorides) is reduced, which indicates the absence of emergency situations at the oil and gas equipment.
Thus, the long-term operation of the Bystrinskoye oil-gas-condensate field did not lead to irreversible changes in the state of the environment. The transformation of the hydrochemical state of surface waters recorded over a long period of observations is local and reversible, and no accumulation of hydrocarbons in the bottom sediments of water bodies has been recorded.
