Abstract

The existence of fault has an important role in EOR activity. In northern part of Balol field which is a part of Cambay basin, EOR scheme had been implemented during the year 2002. Performance review showed that oil recovery from this heavy oil belt was not as per prediction. After the interpretation of 3D seismic data faults were identified and injectors-producers in the EOR scheme were repositioned. Considering the fault geometry analysis of GC data and production data verifies the presence of fault as a barrier to fluid flow, reducing oil production and limiting the effect of air injection and pressure support.