Open AccessPetroleum System Modelling of the Akri-Bijeel Oil Field, Northern Iraq: Insights From 1-Dimensional Basin Modelling
Author(s) -
Rzger A. Abdula,
Hema Y. Hassan,
Maryam M. Sliwa
Publication year - 2020
Publication title -
ukh journal of science and engineering
Language(s) - English
Resource type - Journals
ISSN - 2520-7792
DOI - 10.25079/ukhjse.v4n2y2020.pp35-47
Subject(s) - source rock , geology , paleogene , vitrinite reflectance , petroleum system , petroleum , maturity (psychological) , window (computing) , cretaceous , structural basin , oil field , vitrinite , stage (stratigraphy) , geochemistry , basin modelling , hydrocarbon , petrology , paleontology , chemistry , psychology , developmental psychology , organic chemistry , computer science , operating system
The petroleum system of the Akri-Bijeel oil field shows that the Palaeogene formations such as the Kolosh Formation seem to be immature. However, the Jurassic–Lower Cretaceous source rocks such as those from the Chia Gara, Naokelekan, and Sargelu formations are thermally mature and within the main oil window because their vitrinite reflectance (Ro%) values are >0.55%. The Triassic Kurra Chine and Geli Khana formations are thought to be in the high maturity stage with Ro values ≥1.3% and within the wet and dry gas windows, whereas the older formations are either within the dry gas zone or completely generated hydrocarbon stage and depleted after the hydrocarbons were expelled with subsequent migration to the reservoir rock of the structural traps.