The Contribution of Petroleum Charging Episodes to Different Strike-Slip Fault Zones in the Shunbei Area, the Tarim Basin, NW China

In recent years, newly discovered ultra-deep fault-karst reservoirs in the Shunbei area of Tarim Basin have greatly increased prospectivity basin and become a hotspot for further hydrocarbon exploration. this study, diagenetic sequences Lower-Middle Ordovician reservoir were established through observation thin sections under transmitted light, reflected cathode luminescence. The charge history was reconstructed associated with series events using fluid inclusion microthermometric measurements combined one-dimensional modeling. results show that has experienced three charging episodes total, late Caledonian, Hercynian, Himalayan. Finally, relationship between measured QF-535 factors API gravity crude oil used to quantify level contribution each petroleum No. 1, 5, 7 fault zone reservoirs. early gradually increases from west east area. This increase driven by different tectonic throughout geological subsequent evolution paleo-structural patterns. study significant impact on marine carbonate evaluation strike-slip zones China.