Maturity Modeling of the Songkla Basin

Abstract

Proven oil wells in Songkhla Basin make a thorough knowledge of the petroleum system in this area important to understand. This study focuses on source rock potential as one element of the petroleum system. Maturity modeling of Songkhla Basin has generated an overview of potential source rocks. The late and early Oligocene and Eocene (?) have good potential to become good source rocks. Further analysis of these three source rocks revealed that only the early Oligocene and Eocene source rocks have reached the oil generation phase. Maturity modeling indicated that source rock in Songkhla Basin is early to middle mature. Structural and depth control made the early Oligocene and Eocene source rock reach the mature stage only in some parts of the basin. A small mature area is located on the eastern flank of the basin and is controlled by the distribution of middle Miocene normal faults. The other mature areas are located in the basin depocenter.