Feyzullayev A.A., Huseynov D.A.

Azerbaijan National Academy of Sciences, Institute of Geology and Geophysics, H.Cavid pr. 119, Baku, AZ 1143 E-mail: fakper@gmail.com; d_huseynov@yahoo.com

Two opposing points of view concerning the sources of hydrocarbons (HC) in the main reservoirs of the South Caspian Basin (SCB) Productive Series (PS-Lower Pliocene) reflect syngenetic or epigenetic genesis. Results of investigation are showed that neither quantity nor quality of OM and its maturation level do not support the idea of PS as a source rock. The hydrocarbon generative potential of PS is inadequate to the estimated and observed great petroleum resources in these deposits. It should be suggesting that petroleum fields in PS occurred as a consequence of subvertical migration from underlying (predominantly Oligocene-Miocene) deposits.

Keywords: Petroleum, Field, Formation, Syngenetic, Epigenetic, Lower Pliocene-Productive series, South Caspian Basin