Abstract

For low permeability reservoirs, innovative exploration/ exploitation strategy is required for optimal hydrocarbon recovery. The paper discusses about a low permeability reservoir K-VII of Kalol Field, which has a substantial reserve base and potential for exploration/exploitation. This reservoir has a substantial contribution in increasing production of Kalol field. From core studies it was found that the horizontal and vertical permeabilities ( Kh and Kv ) are in the range of 0.55 to 14.85 mD and 0.04 to 2.47mD respectively with permeability anisotropy ( ? ) of about 2.5. The recovery from this reservoir is as such very less. The primary recovery methods have not given desired results. The production is generally obtained with hydrofracturing. The development scheme implemented for this reservoir has yielded good results in northern and eastern part of Kalol field but over all recovery is poor (< 7% of OIIP). This reservoir was identified for unconventional wells.