Fluid inclusion (FI) data provide insights into the origin of hot fluids in Cretaceous and Jurassic reservoirs in south Kuwait. FI data for Cretaceous reservoirs show anomalously high temperatures exceeding 200 °C compared to samples from the Jurassic. In addition, formation water chemical geothermometry data also show anomalous water-rock equilibration temperatures. The preservation of high temperatures indicates rapid migration from depth through deep-seated fault systems. This implies that very hot fluids probably migrated up-fault from near basement to the Cretaceous section. This approach helps to understand the role of hydrothermal activity associated with basement faults in south Kuwait.
We would like to thank Mohammed D. Al-Ajmi Manager of Exploration Group at KOC for his support and encouragement. We would also like to thank Deddy Djanawir from Exploration Studies Team in KOC for generating seismic lines and structural maps. Thanks is due to Timothy Diggs from Aramco Services Company for final revision. Finally, we thank Technical Review Committee at KOC and Ministry of Oil in Kuwait for their review, approval and endorsement this paper.
- Fluid inclusions
- Hydrothermal fluids
- Kuwait petroleum system
- Water chemical geothermometry