Key words: geological environment, hydrocarbon pollution, geo-ecological, geophysical and engineering-geological studies.
The aim of the study was to determine the level of geological environment contamination as a result of long-term use of an oil field in the Perm Region, which is located in complex geological conditions. During the study areal electrical exploration was carried out with the help of the vertical electrical sounding (VES) method, 15 geotechnical boreholes were drilled and geo-environmental soil testing was carried layer by layer. Interpretation of geophysical data revealed the presence of hydrocarbon and chloride components in soils and karst rock mass. The researchers have found petropollutted grotto and the water source exit with traces of oil, they mark their association with the locations of oil wells. Most likely sources of oil pollution of the geological environment are oil wells. Thus, in the mining and geological conditions, due to the development of karst processes, long-term operation of the oil field in the presence of incidents and emergencies leads to the formation of hydrocarbon contamination in the subsurface with the subsequent distribution into ground- and surface water.
References
1. Gorbunova K.A., Andreychuk V.N. et al., Karst i peshchery Permskoy
oblasti (Karst and caves of the Perm region), Perm': Publ. of, 1992.
2. Seredin V.V., Research of hydrocarbons soil pollution degree in oil and
gas deposits (In Russ.), Vestnik Permskogo natsional'nogo issledovatel'skogo
politekhnicheskogo universiteta. Geologiya. Neftegazovoe
i gornoe delo, 2014, no. 12, pp. 67–74.
3. Pushkareva M.V., Seredin V.V., Leybovich L.O., Chirkova A.A., Appraisal of measures on environmental protection for oil production objects
within the surface water intake zone of sanitary control (In Russ.),
Zashchita okruzhayushchey sredy v neftegazovom komplekse, 2011, no.
8, pp. 27–30.
4. Pushkareva M.V., Seredin V.V., Leybovich L.O. et al., Adjustment of
zonal boundaryof drinking water protective area (In Russ.), Zdorov'e
naseleniya i sreda obitaniya, 2011, no. 10, pp. 45–48.
5. Pushkareva M.V., Seredin V.V., Leybovich L.O., Chirkova A.A., Complex
of sanitation and antiepidemic measures for protection of water intake
area “Tulvinskoe” (In Russ.), Zdorov'e naseleniya i sreda obitaniya, 2011,
no. 9, pp. 14–17.
6. Kolesnikov V.P., Osnovy interpretatsii elektricheskikh zondirovaniy
(Based on the interpretation of electrical soundings), Moscow: Nauchnyy
mir Publ., 2007, 248 p.
7. Kolesnikov V.P., Kostarev S.M. Tatarkin A.V., Application of the electrometry methods and technologies for search and geometrization of
technogenic accumulations of fluids in the subsurface part of geological
environment (In Russ.), Collected papers “Ekologicheskaya reabilitatsiya
promyshlennykh proizvodstv” (Ecological rehabilitation of industrial
plants), Perm': IPK Zvezda Publ., 2005, pp. 288–301.
8. Shevnin V.A., Delgado O., Ryzhov A.A., Mapping the oil pollution of
the geological environment using resistivity method (In Russ.), Razvedka i okhrana nedr, 2004, no. 5, pp. 27– 32.
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