Lithofacies and geochemistry criteria of hydrocarbons bedding into the Pokur suite in Tomsk region (part 2)

Authors: I.A. Melnik, S.V. Zimina, O.D. Eliseeva, K.U. Smirnova (Tomsk Branch of the Siberian Institute of Geology, Geophysics and Mineral Resources, RF, Tomsk), N.A. Shenberger (Siberian Institute of Geology, Geophysics and Mineral Resources, RF, Novosibirsk)

Key words: lithofacies analysis, well logging, low-resistance collector, hydrocarbons, fluid migration, paleosalinity, the Pokur suite, pyrite, boron geochemistry

The Pokur sediments in Tomsk region were researched for their oil and gas saturation. The researches were based on the traditional complex lithofacies analysis and innovative statistical interpretation of well logging data. Lithofacies and geochemical criteria of hydrocarbons bedding were identified. Perspective areas were localized. Potentially oil bearing area is presented by regressive sea sediments associated with lower bench of the Pokur suite.
References
1. Reading, H.G., Sedimentary environment and facies, Blackwell Scientific
Publication, 1986, 615 p.
2. Seli R.I., Drevnie obstanovki osadkonakopleniya (The ancient depositional
environment), Moscow: Nedra Publ., 1989, 294 p.
3. Atlas litologo-paleogeograficheskikh kart yurskogo i melovogo periodov
Zapadno-Sibirskoy ravniny i Ob"yasnitel'naya zapiska k Atlasu
(Atlas of lithologic and paleogeographic maps of Jurassic and Cretaceous
periods of the West Siberian Plain and the Explanatory note to the
Atlas): edited by Nesterov I.I., Tyumen': Publ. of ZapSibNIGNI, 1976, 85 p.
4. Karagodin Yu.N., Sedimentatsionnaya tsiklichnost' (Sedimentation
cyclicity), Moscow: Nedra Publ., 1980, 242 p.
5. Karagodin Yu.N., Regional'naya stratigrafiya (The regional stratigraphy),
Moscow: Nedra Publ., 1985, 179 p.
6. Valiev Yu.Ya., Geokhimiya bora v yurskikh otlozheniyakh Gissarskogo
khrebta (Geochemistry of boron in the Jurassic deposits of the Hissar
Range), Moscow: Nauka Publ., 1977, 150 p.
7. Mel'nik I.A., Identification of secondary converted terrigenous reservoirs
based on the statistical interpretation data GIS (In Russ.), Geofizika,
2013, no. 4, pp. 29–36.
8. Lebedev B.A., Geokhimiya epigeneticheskikh protsessov v osadochnykh
basseynakh (Geochemistry of epigenetic processes in sedimentary
basins), Leningrad: Nedra Publ., 1992, 239 p.
9. Danenberg E.E., Belozerov V.B., Brylina N.A., Geologicheskoe stroenie
i neftegazonosnost' verkhneyursko-nizhnemelovykh otlozheniy yugovostoka
Zapadno-Sibirskoy plity (Tomskaya oblast') (Geological structure
and oil and gas potential of Upper Jurassic-Lower Cretaceous deposits
of the south-east of the West Siberian Plate (Tomsk Region)),
Tomsk: Publ. of TPU, 2006, 295 p.
10. Tishchenko G.I., Vedernikov G.V., Sysolyatin N.V. et al., Analiz i obobshchenie
rezul'tatov seysmicheskikh rabot i glubokogo bureniya v predelakh
Vostochno-Payduginskoy vpadiny i prilegayushchikh territoriy
vdol' regional'nogo profilya “Yuzhsibgeoseys-1” s primeneniem novykh
tekhnologiy prognoza zalezhey uglevodorodov dlya vybora perspektivnykh
uchastkov i ob"ektov litsenzirovaniya nedr (Analysis and summary
the results of seismic survey and deep drilling within the East Payduginskaya
Basin and adjacent areas along the regional profile "Yuzhsibgeoseys-
1" with the use of new technologies for forecast of hydrocarbon
deposits to select prospective sites and objects of subsoil licensing),
Tomsk: Publ. of SNIIGGiMS, 2010.
11. Taranenko E.I., Bezborodov R.S., Khakimov M.Yu., The reservoirs transformation
in oil fields (In Russ.), Geologiya nefti i gaza = The journal Oil
and Gas Geology, 2001, no. 2, URL: http://www.geolib.ru/OilGas-
Geo/2001/02/Stat/stat04.html.
12. Kozerenko S.V., Khramov D.A., Fadeev V.V. et al., The study of the
mechanism of pyrite formation in aqueous solutions at high temperatures
and pressures (In Russ.), Geokhimiya = Geochemistry International,
1995, no. 9, pp. 1553-1565.

Key words: lithofacies analysis, well logging, low-resistance collector, hydrocarbons, fluid migration, paleosalinity, the Pokur suite, pyrite, boron geochemistry

The Pokur sediments in Tomsk region were researched for their oil and gas saturation. The researches were based on the traditional complex lithofacies analysis and innovative statistical interpretation of well logging data. Lithofacies and geochemical criteria of hydrocarbons bedding were identified. Perspective areas were localized. Potentially oil bearing area is presented by regressive sea sediments associated with lower bench of the Pokur suite.
References
1. Reading, H.G., Sedimentary environment and facies, Blackwell Scientific
Publication, 1986, 615 p.
2. Seli R.I., Drevnie obstanovki osadkonakopleniya (The ancient depositional
environment), Moscow: Nedra Publ., 1989, 294 p.
3. Atlas litologo-paleogeograficheskikh kart yurskogo i melovogo periodov
Zapadno-Sibirskoy ravniny i Ob"yasnitel'naya zapiska k Atlasu
(Atlas of lithologic and paleogeographic maps of Jurassic and Cretaceous
periods of the West Siberian Plain and the Explanatory note to the
Atlas): edited by Nesterov I.I., Tyumen': Publ. of ZapSibNIGNI, 1976, 85 p.
4. Karagodin Yu.N., Sedimentatsionnaya tsiklichnost' (Sedimentation
cyclicity), Moscow: Nedra Publ., 1980, 242 p.
5. Karagodin Yu.N., Regional'naya stratigrafiya (The regional stratigraphy),
Moscow: Nedra Publ., 1985, 179 p.
6. Valiev Yu.Ya., Geokhimiya bora v yurskikh otlozheniyakh Gissarskogo
khrebta (Geochemistry of boron in the Jurassic deposits of the Hissar
Range), Moscow: Nauka Publ., 1977, 150 p.
7. Mel'nik I.A., Identification of secondary converted terrigenous reservoirs
based on the statistical interpretation data GIS (In Russ.), Geofizika,
2013, no. 4, pp. 29–36.
8. Lebedev B.A., Geokhimiya epigeneticheskikh protsessov v osadochnykh
basseynakh (Geochemistry of epigenetic processes in sedimentary
basins), Leningrad: Nedra Publ., 1992, 239 p.
9. Danenberg E.E., Belozerov V.B., Brylina N.A., Geologicheskoe stroenie
i neftegazonosnost' verkhneyursko-nizhnemelovykh otlozheniy yugovostoka
Zapadno-Sibirskoy plity (Tomskaya oblast') (Geological structure
and oil and gas potential of Upper Jurassic-Lower Cretaceous deposits
of the south-east of the West Siberian Plate (Tomsk Region)),
Tomsk: Publ. of TPU, 2006, 295 p.
10. Tishchenko G.I., Vedernikov G.V., Sysolyatin N.V. et al., Analiz i obobshchenie
rezul'tatov seysmicheskikh rabot i glubokogo bureniya v predelakh
Vostochno-Payduginskoy vpadiny i prilegayushchikh territoriy
vdol' regional'nogo profilya “Yuzhsibgeoseys-1” s primeneniem novykh
tekhnologiy prognoza zalezhey uglevodorodov dlya vybora perspektivnykh
uchastkov i ob"ektov litsenzirovaniya nedr (Analysis and summary
the results of seismic survey and deep drilling within the East Payduginskaya
Basin and adjacent areas along the regional profile "Yuzhsibgeoseys-
1" with the use of new technologies for forecast of hydrocarbon
deposits to select prospective sites and objects of subsoil licensing),
Tomsk: Publ. of SNIIGGiMS, 2010.
11. Taranenko E.I., Bezborodov R.S., Khakimov M.Yu., The reservoirs transformation
in oil fields (In Russ.), Geologiya nefti i gaza = The journal Oil
and Gas Geology, 2001, no. 2, URL: http://www.geolib.ru/OilGas-
Geo/2001/02/Stat/stat04.html.
12. Kozerenko S.V., Khramov D.A., Fadeev V.V. et al., The study of the
mechanism of pyrite formation in aqueous solutions at high temperatures
and pressures (In Russ.), Geokhimiya = Geochemistry International,
1995, no. 9, pp. 1553-1565.


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