Abstract

Development strategy of a mature oil field comprises a great amount of investment and involves a large number of parameters related to geological modeling and reservoir simulation. An oil Field in the western margin in Ahmedabad-Mehsana tectonic block of North Cambay Basin, India, is on production since 1977. It is a multi layered strati-structural sand stone reservoir with aquifer support. Oil production had started in 1977 and touched its peak in 1992. From 1992 onwards, oil production had started declining gradually mainly due to increase in water cut. In order to arrest declining oil production, hold back increasing water encroachment and maximize recovery, a systematic and Integrated geologic modeling & Reservoir simulation has been taken up to improve fieldscale reservoir management in the field.