Generation Potential of the Lower Pliocene Deposits and Its Importance (Contribution) to Hydrocarbon Generation in the South Caspian Basin
摘要
Investigation of sedimentary rocks in the South Caspian Basin (SCB) based on up-to-date laboratory analysis methods allows a correct estimate of HC potential in the PS and, hence, its role in forming discovered oil and gas commercial accumulations. This estimation has been carried out based on the pyrolysis of core samples from the wells drilled in on potential structures and fields on land and sea of the SCB. Oil fields in the PS have been formed due to allochthonous hydrocarbon inflow from the underlying deposits. The low-governed nature of spatial distribution and the vertical section of isotopic-geochemical features in oil composition and thermobaric parameters confirm this conclusion. All these features indicate that the HC feeding source is present in the underlying Oligocene-Miocene deposits.