ONGC's chartered-hired ultradeep water drillship DDKG1 has set a world record for drilling well in deepest water depth by an offshore drilling rig. The rig DDKG1 has spudded well NA7-1 in exploratory block KG-DWN-2004/1 in east coast India at a water depth of 3165m (10,385 feet) on Jan 23, 2013. Thereafter it successfully lowered and latched subsea BOP and riser on wellhead on Feb 09, 2013 to drill further to TD 5625m. The rig owned by M/s Transocean surpassed Transocean's own prior record of 10,194 feet of water depth, set in 2011 by DDKG2 working for Reliance Industries Ltd., India in east coast.

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