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ABOUT WATER SHOOTING: HISTORY, EXPERIENCE OF APPLICATION, FEASIBILITIES AT THE PRESENT STAGE OF RESEARCH OF THE SIBERIAN PLATFORM

E. V. Mosyagin 1, A. S. Efimov 2

1 Siberian Research Institute of Geology, Geophysics and Mineral Resource, Novosibirsk, Russia; 2 Novosibirsk branch of All-Russian Research Geological Oil Institute, Novosibirsk, Russia

Since the beginning of the 2000s, water shooting has been carried out on the territory of the Siberian Platform o a number of profiles, including long routes along the Nizhnyaya Tunguska [Lower Tunguska] River, Lena River (in the upper and lower courses), Vitim River, as well as more local works, including experimental and methodological ones – at the Angara, Chuna, and Biryusa Rivers. The high geological efficiency of these routes, combined with an almost twofold reduction in the cost of one linear km of seismic profile, сomparatively common ground-based operations of the CDP method, allows researchers to recommend the expansion of such operations on the rivers of the northern Tunguska syneclise, the area with very low exploration degree of prospects of oil and gas. It is situated in the region where a quarter of all the hydrocarbon resources of the Siberian Platform are on the balance sheet.

Keywords: seismic survey, 2D CDP, East Siberia, Siberian Platform, water shooting, NSS, Nizhnyaya Tunguska.

DOI 10.20403/2078-0575-2021-3-48-60

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