Optimal water saturation model for Miocene reservoirs in the northeastern part of Cuu Long basin, Vietnam
Abstract
The study aims at determining the most realistic water saturation models to be utilised for the Miocene sandstone reservoir in the northeastern part of the Cuu Long basin. The wireline logging, core analysis and geological data from the wells in the northeastern part and surrounding areas are used in full to estimate shale content, porosity, and water saturation. The obtained water saturation results have been subjected to a comparative study considering all the petrophysical parameters involved. In shaly zones, the dual-water model provides good values of water saturation compared to those obtained by others such as Archie, Simandoux, and Indonesian models. An approach of comparative study between different water saturation models was outlined and implemented. It is expected that the results of this study can be applied in log analysis for other Miocene reservoirs in the Cuu Long basin.
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