Advanced Borehole Imaging for Structural Characterization of the Hassi Messaoud Nord Oil Fiel

Abstract

This study focuses on the application of advanced borehole imaging technologies — UBI (Ultrasonic Borehole Imager), UBMI (Ultrasonic Borehole Micro-Imager), CBIL (Circumferential Borehole Imaging Log), and Earth Imager — in the structural characterization of the Hassi Messaoud oil field, one of Algeria’s most productive hydrocarbon reservoirs. Through the integration of these high-resolution tools, we were able to obtain detailed images of borehole walls, allowing for the identification and interpretation of key geological features such as fractures, faults, bedding planes, and breakout orientations. The interpretation of these images provided valuable insights into the in-situ stress regime, fracture networks, and structural heterogeneities that directly influence reservoir behavior and productivity. The results demonstrate the effectiveness of combining these imaging technologies in improving geological models and optimizing well placement and reservoir management strategies. This study highlights the critical role of borehole imaging in enhancing the understanding of subsurface structures in complex petroleum systems like Hassi Messaoud.