Geophysical, sedimentary and petrophysical evaluation of the Ri and Ra Cambrian reservoirs in the El Gassi region (southeast Algeria)

Abstract

n the El Gassi field, the Cambrian reservoirs Ri and Ra are considered to be among the most important primary reservoirs, characterized by high heterogeneity resulting from the sandstone structure and tectonic phenomena that have impacted the reservoir quality through the faults and fractures they have caused. Petrophysical studies in Ri and Ra show significant heterogeneity between porosity and permeability, reflecting challenges in understanding and managing these reservoirs. Integration of sedimentological and petrophysical studies is considered essential to achieve a comprehensive reservoir description and improve reservoir management practices and production