Investigation of Hydrocarbon Generation Potential of Gadvan Formation by the Use of Pyrolysis Rock-Eval 6 in Azadegan Oil Field

Document Type: Original Article

Authors

1 Special Drilling Operation Department, National Iranian Drilling Company (NIDC), Khuzestan Province, Iran.

2 Drilling Operation Department, National Iranian Drilling Company (NIDC), Khuzestan Province, Iran.

Abstract

Rock-Eval Pyrolysis and its results are commonly used for determination and interpretation of the characteristics of sedimentary basins. The aim of this study is to examine and compare hydrocarbon generation potential of Gadvan formation by using Rock Eval analysis in 5 wells of the Azadegan oil field. This oil field is located in Iran. For this purpose, geochemical investigation of Gadvan formation as the potential source rocks was carried out with 33 core samples in the studied areas. Investigation of the variation S1 + S2 and TOC parameters indicated that this formation is assessed as a moderate source rock for hydrocarbon generation in Azadegan oil field. Based on HI versus Tmax plot the kerogen of this formation is from types III  indicating the immaturity and no entry of samples into the oil window. Tmax examination also showed that this formation is not mature enough to generate hydrocarbon, and has not yet entered into the oil generation window.

Keywords