Key words: sedimentological model, preobrazhensky horizon, carbonate rocks, Eastern Siberia, Vendian, paleofeomorphological reconstructions.
Based on results of drilling at Verkhnechonskoye field, a detailed sedimentological model of preobrazhensky horizon was created, where four member can be identified that were formed under different facial conditions of shallow marine basin. The results obtained provide an explanation for low production rates and oil recovery factor at the field. A method of paleomorphological reconstructions was proposed that will enable to better understand the architecture and oil- and gas-bearing prospects of the Vendian carbonate complex.
References
1. Shemin G.G., Collection of materials of science and practical conference ”Teoriya i praktika geologo-ekonomicheskoy otsenki raznomashtabnykh neftegazovykh ob"ektov. Aktual'nye problemy podgotovki i osvoeniya uglevodorodnoy syr'evoy bazy” (Theory and practice of geological and economic evaluation raznomashtabnyh oil and gas facilities. Actual problems of training and development of hydrocarbon resource baseSt. Petersburg: Publ. of VNIIGRI, 2008, pp. 286 – 296.
2. Gurova T.I., Chernova L.S., Bogdanova V.N. et al., Litologiya i usloviya formirovaniya rezervuarov nefti i gaza Sibirskoy platformy (Lithology and conditions of forming oil and gas reservoirs of the Siberian platform), Moscow: Nedra Publ., 1988, 254 p.
3. Shemin G.G., Chernova L.S., Potlova M.M. et al., Geologiya i geofizika – Russian Geology and Geophysics, 2012, V. 53, no. 2, pp. 226 – 236.
4. Mel'nikov N.V., Yakshin M.S., Shishkin B.B. et al., Stratigrafiya neftegazonosnykh basseynov Sibiri. Rifey i vend Sibirskoy platformy i ee skladchatogo obramleniya (Stratigraphy of the oil and gas basins of Siberia. Riphean and Vendian of the Siberian Platform and its folded frame), Novosibirsk: ”Geo” Publ., 2005, 428 p.
5. Vorob'ev V.N., Collection of works ”Novye dannye po geologii i neftegazonosnosti Leno-Tungusskoy provintsii” (New data on the geology and petroleum potential of the Lena-Tunguska province), Novosibirsk: Publ. of SNIIGGiMS, 1982, pp. 4 – 7.
6. Vilesov A.P., Vorob'ev V.C., Neftyanoe khozyaystvo – Oil Industry, 2012, no.10, pp.???
7. Harwood C.L., Sumner D.Y., Microbialites of the Neoproterozoic Beck Spring Dolomite, Southern California, Sedimentolgy, 2011, V. 58, pp. 1648-1673.
8. Chernova L.S., Potlova M.M., Gushchina N.E. et al., Materials of the international conference” Geologiya rifov” (Geology of reefs), Syktyvkar: Publ. of Institut geologii, 2005, pp. 190-192.
9. Khabarov E.M., Geologiya i geofizika – Russian Geology and Geophysics, 2011, V. 52, no. 10, pp. 1447-1465.
