Abstract
The petroleum system of Middle Jurassic to lower cretaceous layers in Mesopotamian basin have excellent source rocks and reservoirs. The deep formations (Sargelu and Yamama) in Siba gas field are selected from seismic sections and drilling data to rebuild burial and thermal history by 1D-Petromode software to understanding the level of thermal maturation of organic matters, hydrocarbon accumulation, migration and generation in the study area. Results revealed that the vitrinite reflectance (VR0) of the Yamama formation had been reached to the main oil window at (0.89%), while the Sargelu formation had been reached to (1.31%) wet gas window at present day. The thermal history modeling showed that the expected maximum temperatures at present day reached to (126.8 °C and 155.4 °C) for Yamama and Sargelu formations, respectively, due to the increase in the tectonic subsidence in Miocene period. This may attribute to the development of organic matters and hydrocarbon generation as well as rise in pore pressures due to compaction of layers that lead to hydrocarbon migration from Jurassic source rock to lower cretaceous reservoirs.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
