Leveraging Real-Time Data and Advanced Tools to overcome Reservoir challenges in Silurian Formations, Algeria

Summary Algeria’s Silurian formation in a western field poses significant challenges in reservoir characterization and production. These challenges include deep and unstable boreholes, heterogeneous reservoirs with low resistivity pay zones, and substantial uncertainties in determining fluid contacts. The instability and complexity of the reservoirs, combined with low-resistivity pay zones, make it difficult to accurately identify and characterize hydrocarbon-bearing intervals. Accurate determination of the gas/water contact is crucial for reserves estimation, completion design, and development planning but remains challenging due to geological and petrophysical complexities. Addressing these challenges requires a multidisciplinary and coordinated strategy. Overcoming these issues involves optimizing drilling operations, utilizing advanced logging and interpretation techniques, and integrating multiple data sources. An effective approach includes using advanced mud gas (AMG) technology for early formation fluid characterization and fluid contact identification, followed by a wireline formation tester (WFT) for precise contact determination and formation water identification.