In order to achieve the above goal, several methods and techniques such as 3D seismic data, core data, wire line logs and mud logs were integrated together and used. Moreover, two PC based software were used, namely Discovery and Petrel for seismic interpretation and geological modelingrespectively.　　Based on the integration of the core and well logs data a number of fining upwards depositional cycles have been recognized and delineated at each single well.　　Based on these cycles the above mentioned horizon has been divided into four sub-horizons (y4-1, y4-2, y4-3 and y4-4) and each sub-horizon contains different fluvial architectural elements. Subsequently by adding the seismic attribute method to the single well data and combining with them the conceptual fluvial model, four plain maps have been constructed for these sub-horizons in order to see the stratigraphic evolution throughout the time.　　The fluvial architectural elements that have been identified and characterized across Y4 & Y5 were mainly belong to the meandering system deposits and these are: point bars, flood plains, levees and abandoned channels. From the plain view the area appeared to be consisting of a　　meandering zone (stacking sand bodies) not of a single meandering river(single sand body).　　By transferring all the above data to the petrel Software a geological model including fault model, facies model and property model were built up.