Abstract
Electrical and acoustic image logs are the best evaluating subsurface fracture and In-situ Stress wellbore data among direct and indirect methods. In this study, which had done by using the 24 Asmari reservoir well data in the Aghajari giant oilfield firstly were determined and categorized subsurface natural fracture, fault and In-situ Stress from common conventional well log, electrical and acoustic image logs, dipole sonic logs and 3D seismic data. Then, the relationship between determined features are evaluated in terms of genesis, events and different structural setting as the interaction between fault and In-situ Stress on the kinematic and subsurface natural fracture of Aghajari oilfield in southwest of Iran. The maximum and minimum horizontal in-situ stress direction is derived from image and dipole data had a good correlation except regions due to the fault effect. the integration of data evinced that the perturbation of regional stresses inherited from seismic faults and the effect of both regional stress and fault effect in the construction of a transforming fold as detachment type in SW nose to forming fault propagation and bending fold towards central and SE nose, respectively, which it could be useful for fracture modeling to enhance oil production, especially in heterogeneous carbonate fractured reservoirs.
NSTL