Evaluation of Geochemical Properties Garau Formation Using Rock-Eval Pyrolysis Data in West regions of Khorramabad and North-west of Kermanshah

In this research, the geochemical characteristics of the Garau Formation in two sections of the ground surface (west of Khorramabad and North-west of Kermanshah) were done by Rock-eval method. Based on the available data analysis, Most samples of the Garau Formation in the study areas have Type III kerogen. However , samples of the Garau Formation in North-West Kermanshah also contain lower amounts of type I and II kerogen. The TOC of samples from West Khorramabad and North-west of Kermanshah are about 0.24-1.28 and 0.05-1.96%wt. The Tmax values of the samples vary between 416-444 and 441-480°C, respectively. The kerogen of the studied samples in West of Khorramabad are in immature to maximum maturity stage, However, The kerogen of samples of the Garau Formation in the North-west of Kermanshah are in maximum maturity (oil window) to wet and dry gas production stage.