A number of large petroleum fields are located in anticlinal structures within the Niger Delta, and these fields may be considered as potential fault reactivation risk as time goes on. High resolution predictive model was generated in this study using 3D finite element models constrained by seismic with a view to improving wellbore stability predictions along the paths of future development wells. 3D seismic data, borehole and production data were integrated in the analysis and interpretation of detailed structural model of the study area. The study performed geomechanical modelling to assess the likelihood of fault reactivation since both normal faulting regimes exist in the study area. Reservoir geomechanical data indicates that the in-situ stress in this region is characterised by normal faulting conditions where SV (75 MPa/km) >SHmax (68.5 MPa/km) >Shmin (40 MPa/km). The results show northwest to southeast and east-northeast to west-southwest fault trending that are presently at moderate and high risks of reactivation. The results also reveal thatfault reactivation potentialcan beinfluenced faultbysurface geometryand thus development of detailed reservoir structural models is importantfor risk assessments before future wells development.
