Sedimentation preconditions of Kolgan Formation hydrocarbon potential

Authors: E.V. Zagrebelnyi (Gazprom Neft Orenburg, RF, Orenburg), V.A. Kosmynin, D.A. Kuzmin (Gazpromneft NTC LLC, RF, Saint-Petersburg), V.V. Ananiev (Gazprom Neft JSC, RF, Saint-Petersburg)

Key words: Devonian, Kolgan Formation, sandstones, paleogeography, lithology traps.

The significant amount of geological and geophysical data including well logging, core studying, well testing and regional geology structure have been analyzed and systemized. The goal is determination of existent hydrocarbon deposits regularities and estimation of exploration prospects in terrigenous Kolgan Formation. The non-structural traps with cumulative recoverable hydrocarbon resources of more then 35 mln tons are predicting according to the results of work.
References
1. Gmid L.P., Nikitin Yu.I., Taninskaya N.V., Shibina T.D., Neftegazovaya
geologiya. Teoriya i praktika, 2007, V. 2, p. 29.
2. Geologicheskoe stroenie i neftegazonosnost' Orenburgskoy
oblasti (Geological structure and oil and gas potential of the
Orenburg region), Orenburg: Orenburgskoe knizhnoe izdatel'stvo
Publ., 1997, 272 р.
3. Geologiya i razrabotka neftyanykh i gazovykh mestorozhdeniy
Orenburgskoy oblasti (Geology and development of oil and gas
fields of the Orenburg region), Orenburg: Orenburgskoe knizhnoe
izdatel'stvo Publ., 1998, 256 р.
4. Poberezhskiy S.M., Afanas'eva M.A., Polyakova M.A.,
Yaroshenko A.V., Geologiya, geografiya i global'naya energiya,
2010, no. 3, pp. 261-266.
5. Reading H.G., Sedimentary environments: processes, facies
and stratigraphy, Blackwell Publishing Limited, Second edition,
1986, 352 р.
6. Selley R.C., Ancient sedimentary environments and their subsurface
diagnosis, Cornell Univ Pr; 3 edition, 1986, 317 p.

Key words: Devonian, Kolgan Formation, sandstones, paleogeography, lithology traps.

The significant amount of geological and geophysical data including well logging, core studying, well testing and regional geology structure have been analyzed and systemized. The goal is determination of existent hydrocarbon deposits regularities and estimation of exploration prospects in terrigenous Kolgan Formation. The non-structural traps with cumulative recoverable hydrocarbon resources of more then 35 mln tons are predicting according to the results of work.
References
1. Gmid L.P., Nikitin Yu.I., Taninskaya N.V., Shibina T.D., Neftegazovaya
geologiya. Teoriya i praktika, 2007, V. 2, p. 29.
2. Geologicheskoe stroenie i neftegazonosnost' Orenburgskoy
oblasti (Geological structure and oil and gas potential of the
Orenburg region), Orenburg: Orenburgskoe knizhnoe izdatel'stvo
Publ., 1997, 272 р.
3. Geologiya i razrabotka neftyanykh i gazovykh mestorozhdeniy
Orenburgskoy oblasti (Geology and development of oil and gas
fields of the Orenburg region), Orenburg: Orenburgskoe knizhnoe
izdatel'stvo Publ., 1998, 256 р.
4. Poberezhskiy S.M., Afanas'eva M.A., Polyakova M.A.,
Yaroshenko A.V., Geologiya, geografiya i global'naya energiya,
2010, no. 3, pp. 261-266.
5. Reading H.G., Sedimentary environments: processes, facies
and stratigraphy, Blackwell Publishing Limited, Second edition,
1986, 352 р.
6. Selley R.C., Ancient sedimentary environments and their subsurface
diagnosis, Cornell Univ Pr; 3 edition, 1986, 317 p.


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