Reliance cuts KG D6 gas reserves by 70 per cent

Reliance Industries has drastically cut natural gas reserves in its main production gas fields in the Krishna Godavari basin D6 block by 70 per cent to 3.10 trillion cubic feet (tcf) due to "unforeseen geological surprises".

Minister of state for petroleum and natural gas R P N Singh told the Lok Sabha in a written reply today that RIL's estimates of 10.3 tcf of recoverable reserves in the Dhirubhai-1 and 3 (D1&D3) gas field in the KG-D6 block had been revised by the company to 3.10 tcf.

"Subsequently, the contractor (RIL) revised the estimates of recoverable reserves of D1&D3 fields as 3.10 tcf," he said.

D1&D3, the biggest of the 18 finds RIL had made in the deep-sea block in Bay of Bengal, had started production in April 2009 and the output had been 2 tcf in the past three years.

The estimated reserves of MA in the same block were 681.4 billion cubic feet (bcf) of recoverable gas reserves and RIL has now revised it to 788 bcf, he said.

According to Singh, the block KG-DWN-98/3 or KG-D6 produced 15.106 bcm of gas in 2009-10, which increased to 20.4 bcm in 2010-11. However, in the subsequent year, it was down to 15.611 bcm.