Geology, geography and global energy

Scientific and Technical Journal

Possible interference while gasometric surveying for oil and gas

2018. №3, pp. 53-63

Navrotsky O.K. - D.Sc. in Geology and Mineralogy, Professor, Honored Geologist of the Russian Federation, Saratov National Research University named after N. G. Chernyshevsky, 83 Astrakhanskaya st., Saratov, 410012, Russian Federation, РѕРєnavr01@gmail.com

Zotov A.N. - Executive Director, Chief Geologist, LLC "Lukbeloyl", 42 Ulyanovskaya st., Saratov, 410056, Russian Federation, Zotov@lukbeloil.com

Bogdanov M.B. - D.Sc. Physics and Mathematics, Professor, Honored Geologist of the Russian Federation, Saratov National Research University named after N. G. Chernyshevsky, 83 Astrakhanskaya st., Saratov, 410012, Russian Federation, BogdanovMB@info.sgu.ru

Dotsenko A.M. - post-graduate student, Honored Geologist of the Russian Federation, Saratov National Research University named after N. G. Chernyshevsky, 83 Astrakhanskaya st., Saratov, 410012, Russian Federation, gidrogeologant@gmail.com

Possible interference while gasometric surveying for oil and gas was identified. Studies were carried out on the territory of the northwestern part of the Reri-Caspian depression. Gas samples were taken in a specially drilled and equipped 2,5 m deep well. Gas samples were analyzed on a "Crystal 2000M" chromatograph. Methane and its homologues, as well as non-hydrocarbon gases, including helium and hydrogen, were determined. The moment for the sample was recorded by calculating the vertical component of the tidal acceleration delta g at a point with given geographic coordinates and altitude above the sea level using the Tsoft computer program developed at the Royal Observatory of Belgium. The following dependence of the geochemical background is established: at "outflows" a decrease in the average concentration of hydrocarbon gases is observed, accompanied by an increase in the average concentration of non-hydrocarbon gases. The contrast ratio reaches 2. The change in the geochemical background of the subsoil geosphere during syzygian tides has been revealed.

Key words: подпочвенные газы, гравитационное поле, концентрация, газогеохимический фон, лунно-солнечные приливы, приливное ускорение, газометрическая съемка, вертикальная компонента, контрастность аномалий, углеводородные газы, сизигийные, квадратурные приливы, коэф

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