Discoverer at second ONGC well
Transocean owned and operated deepwater drillship Discoverer Seven Seas has moved to a second well for ONGC after taking four months to drill 4000 metres to â€کbasement’ at well CY-DWN-2001-1 at NELP-III deepwater block CY-DWN-2001/1, near Sri Lanka.
PETROWATCH learns ONGC found traces of hydrocarbons at the first well, which it originally wanted to drill to 4200 metres. “There were some (hydrocarbon bearing) sands,†reports a source.
Discoverer moved to well CY-DWN-2001-2 around October 26 but “has not started drilling yet.†TD for this well is also around 4000 metres.
ONGC resumed deepwater drilling with Discoverer in July after a gap of more than a year. ONGC (80%) and Oil India (20%) won CY-DWN-2001/1 in the third NELP licensing round in 2003 and signed a PSC on February 4, 2003.
In June 2007, Brazil’s Petrobras took a 25% stake and in January this year Norway’s Rocksource took a 10% stake, bringing ONGC’s holding down to 45%.