ONGC sets world-record in drilling undersea well

State-owned Oil and Natural Gas Corporation (ONGC) on Monday said it drilled a well in record water-depths using a rig it had hired from Reliance Industries .

"ONGC's chartered-hired ultradeep drillship DDKG1 has set a world-record for drilling a well at the deepest water-depth by an offshore drilling rig," the company said in a statement in Mumbai.

The rig DDKG1 has spudded well NA7-1 in exploratory block KG-DWN-2004/1 off the east coast of India at a depth of 3,165 metres (10,385 feet) on January 23. "Thereafter it successfully lowered and latched subsea (facilities) on February 9 to drill further to target depth 5,625 metres," it said.

The rig owned by Transocean surpassed Transocean's own prior record of 10,194 feet, set in 2011 by DDKG2 working for Reliance Industries on the east coast.

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