In life of field, reservoir pressure is dropping by the development of production. The mechanisms to control pressure and production can be classified as primary, secondary and tertiary production mechanisms. Primary and Secondary Recovery techniques together are able to recover only about 35-50% of oil from the reservoir. This leaves a significant amount of oil remaining in the reservoir. Remaining oil in the reservoir can be divided into two classes, firstly residual oil to the water flood and secondly oil bypassed by the water flood. Residual oil mainly contains capillary trapped oil. One...