Jubilant Energy: Discovery at Tripura Well in India

Jubilant Energy NV announced that subsequent to the successful conventional testing in the Lower Bhuban formation in the North Atharamura-1 well in Tripura Block AA-ONN-2002/1, a Notice of Discovery has been submitted to the Management Committee of the Block and Government of India, as required by the Production Sharing Contract.

North Atharamura-1 is the second exploratory well of the two well Phase-II minimum work program for the Block. The well was spud on 12 Feb 2013 and reached a Measured Depth (MD) of 11,155 feet (3,400 meters) May 17.

Based on the available information from drilling, mud logs and wire-line open-hole and cased-hole data, two Objects were selected for conventional testing to establish the presence of producible Non-Associated Natural Gas. The gross Lower Bhuban sand in the 7,136 to 7,201 (2,175 to 2,195 meters) interval (Object-I) appeared promising on the logging-while-drilling logs and the presence of hydrocarbons was further validated by cased-hole porosity and sonic logs. The testing operation for Object-I commenced May 22 and the same was perforated May 25. Cement Bond logs and variable density logs showed poor to moderate cementation against this sand interval with a possible water leg below 7,201 feet (2,195 meters) MD. Object-II in the 2,001 to 2,051 feet (610-625 meters) MD Middle Bhuban sand interval is yet to be tested.

Object-I flowed gas with some water, which, in all likelihood, is from the water leg due to poor cementation. The gas rate was measured as 3,240-3,777 standard cubic feet per day and water rate as 445-918 barrels per day at 32/64" choke size. The multi-bean study for flow rate has not been conducted yet.

Jubilant holds a 20-percent participating interest in this block through its subsidiary Jubilant Oil & Gas Private Limited, India which is also the Operator for the block. GAIL India Limited holds the remaining 80-percent participating interest.

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