Paleodepositional environment and hydrocarbon potential of Ora Formation, North and West Iraq

Abstract

Ora Formation (Lower Carboniferous) in Akkas gas field, and in outcrop in the north Iraq, was examined by using the total organic carbon (TOC), total inorganic carbon (TIC), sulfur content (S), Rock-Eval pyrolysis, Gas Chromatography (GC), and incident light microscopy to evaluate their hydrocarbon potentiality and paleodepositional environment. These measurements are indicated that these successions can be considered potential source rocks. The organic matters are mixed of marine and terrestrial; and they are immature. These successions were deposited in more oxic environment.