Porosity 3D modeling using sequential Gaussian simulation in one of Persian Gulf oilfields

Porosity is a petrophysical property used for reservoir 3D modeling and prediction of production scenarios for the purpose of economic decisions play an important role in field and reservoir management. In this study, drilling data (logs) from 3 wells and geostatistical method including sequential Gaussian simulation were used to predict porosity pertophysical property. Sequential Gaussian simulation is widely used for porosity model construction since it is easily applied and is flexible in real heterogeneous conditions. In this method, with the available data including values and coordinates values of the same parameter in unknown points can be predicted. In Sequential Gaussian method cells having certain values from petrophysical parameters are taken into account. After, constructing reservoir structural model and analyses of petrophysical data, simulations models for 5 reservoir units of Sarvak and Dariyan reservoirs (1, 2, 3 and 4) in the studied filed were established for porosity with high precision.