4D Seismic Inversion Challenges, a Case Study on the Mature Albacora Leste field, Campos Basin, Brazil

The study addresses the challenges of 4D seismic inversion in the mature Albacora Leste field, Campos Basin, Brazil, a complex deepwater reservoir with stacked turbiditic deposits. Using a 2005 baseline dataset and a 2022 monitor survey, the study overcomes challenges in data alignment, signal processing, and bandwidth optimization to enhance inversion accuracy. Key steps include 3D/4D matching, wavelet temporal/spatial stationarity adjustments, and dynamic warping. Results highlight fluid flow dynamics, revealing compartmentalization effects, production-induced changes, and water injection impacts. The 4D seismic study significantly improved understanding of the reservoir, identifying new infill opportunities and supporting optimized reservoir management.