Contribution of logging and formation test results to a Drill Stem Test design: application on the Berkine basin (RODE-1,NAHE-4)

Abstract

This thesis investigates the integration of advanced well logging and formation testing techniques to optimize Drill Stem Test (DST) design and reservoir evaluation in the Berkine Basin, with detailed case studies on the NAHE-4 and RODE-1 wells. The research covers the principles, methodologies, and operational workflows of DST, wireline logging, logging-while-drilling (LWD), modular formation dynamic testing (MDT), and production logging tools (PLT). By combining continuous depth-based measurements of resistivity, porosity, density, sonic, and gamma ray logs with dynamic pressure and fluid sampling data, the study demonstrates how multidisciplinary formation evaluation enhances reservoir characterization, fluid typing, and production forecasting. Results from the NAHE-4 and RODE-1 wells confirm that integrated logging and testing approaches yield more accurate identification of productive zones, fluid contacts, and reservoir heterogeneity, leading to improved well completion and field development strategies. The thesis concludes with recommendations for adopting integrated workflows, investing in advanced technology, and fostering interdisciplinary collaboration to maximize hydrocarbon recovery in complex geological settings like the Berkine Basin.