Hydrocarbon Productivity Studies Using Rock Properties and Attributes; A Case Study of Niger Delta, Nigeria

This study was carried out to evaluate time-lapse (4D) production of hydrocarbon using some rock properties and attributes from available well logs and seismic data in a Niger Delta field. Various cross-plots were initially performed where results showed that P-impedance, lambda- rho density, poison's ratio and mu-rho attributes were more robust in terms of fluid and lithology discrimination as they exhibit high sensitivity to fluids within the reservoir while Vp/Vs ratio was poor attribute in fluid discrimination. Gassmann's fluid substitution analysis also showed that density, lambda-rho and P-impedance were more sensitive to oil and gas saturations.