Integrated 3D geomechanical characterization of a reservoir: case study of "Fuja" field, offshore Niger Delta, Southern Nigeria

Abstract 3D geomechanical characterization of "Fuja" field reservoirs, Niger Delta, was carried out to evaluate the mechanical properties reservoir rock which will assist in reducing drilling and exploitation challenges faced by operators. Bulk density, sonic, gamma-ray logs from four wells were integrated with seismic data core area estimate elastic inelastic properties, pore pressure, total vertical stress, as well maximum minimum horizontal stresses within reservoirs empirical equations, using Petrel Microsoft Excel software. models these cross-plots showing relationship between also generated. From results, Young's modulus, bulk compressibility, shear Poisson's ratio, unconfined compressive strength recorded average values 5.11 GPa, 5.10 0.023 GPa ?1 $$,$$ , 2.39 0.39, 39.0 respectively, sand, 6.08 6.09 Gpa, 0.016 2.84 0.42, 42.3 shale, implying that sand is less ductile deform before shale under similar stress conditions. Results revealed mean pressures 13,248 psi 15,220 units, 28,193 psi, 26,237 21,532 psi. models, parameters higher around northeastern parts eastern western portions deformation be minimal sections compared other during post-drilling activities. The generated indicate a exists strength. Stress estimations relation obtained show are stable. These results invaluable mitigating exploration challenges.