ONGC successfully completes production test in well MD 5 at Cauvery Basin

Oil & Natural Gas Corporation (ONGC), the operator of the on-land block, CY-ONN-2002/2, in the Cauvery Basin, India, has successfully completed a production test in well MD 5, to evaluate the potential of the unconventional Basement reservoir. ONGC is the operator of the block, CY-ONN-2002/2, with 60% interest in partnership with Bharat Petroleum Corporation’s (BPCL) wholly owned subsidiary - Bharat PetroResources (BPRL), holding the remaining 40%. The well, MD 5, was drilled down to a depth of 2175 m and tested barefoot in a gross interval of 500 m, which flowed gas at the rate of 61,800 cubic meters per day along with condensate at the rate of 9.6 cubic meters per day through 7 mm bean, from the Basement reservoir. The well MD-5 is located about 9 km towards east of Sirkhazhi town in Nagapattinam district, Tamil Nadu. The discovery is now known as ‘Thirunagari Gas Discovery’ after the name of the nearby village. The first discovery in this block was in October 2012, when oil was discovered in the well Madanam-3, which is under appraisal. This discovery is envisaged to enhance the commercial viability of this block.