ONGC Hits Two Gas Discoveries

India's Oil and Natural Gas Corp. (ONGC) has made two shallow water gas discoveries offshore India.

Exploratory well Alankari No. 1, in NELP Block KG-OSN-2004/1 in the KG shallow offshore Basin, was drilled to a depth of 6,273 feet (1,912 meters). The 6,002 to 6,010 foot (1,829.5 to 1,832 meter) interval in the Godavari clay/Ravva formation of Mio-Pliocene age was formation tested, producing gas at a rate of 144,780 MMcm/d and condensate at 1.6 cu M/d.

The gas discovery is located south of Narsapur, Andhra Pradesh state, 4.3 miles (7 kilometers) from the coast in a water depth of around 69 feet (21 meters). This was the second gas discovery in the block following Chandrika South No. 1.

The second exploratory well, GSS04NAA No. 1 in NELP Block GS-OSN-2004/1 in Saurastra offshore, Western offshore basin, reached a depth of 16,033 feet (4,877 meters).

The 15,733 to 15,697 foot (4,795.5 to 4,784.5 meter) interval of Mesozoic age was also formation tested, and produced gas at a rate of 1.4 MMcf/d through a ¼-inch choke. ONGC claims this discovery provides a significant lead to explore other sub-basalt Mesozoics in the area.

Exploratory well GSS04NAA No. 1 is located southwest of Dwarka, Gujarat state, about 56 miles (90 kilometers) offshore in a water depth of around 328 feet (100 meters).


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