ONGC tests G-4 well as KT-2 struggle continues

Vol 17, PW 19 (08 May 14) Exploration & Production

ONGC is production testing appraisal well G-4-6-1A at its G-4 nomination block on the east coast.

Transocean semi-submersible MG Hulme Jr. is on standby at the well where gas was struck in April.

MG Hulme spud G-4-6-1A on September 18, 2013 in water depths of 300 metres and drilled it to 4315 metres against its original TD of 4426 metres. "We will test the well for 10 days," says ONGC.

Meanwhile, ONGC is using Transocean semi-submersible GSF 140 at its KG-DWN-98/2 block to continue drilling appraisal well KT-2, almost a year after spudding it. Progress at KT-2 has been delayed by technical difficulties dealing with a HT/HP scenario and a shut-in due to Cyclone Phailin last year.

By May 4, GSF 140 drilled KT-2 to 5103 metres of the targeted 5425 metres. Transocean's third semi-submersible GSF Explorer, also hired by ONGC, is drilling development well KG-DWN-98/2-J-AA in water depths of 90 metres at KG-DWN-98/2.

By May 4, ONGC drilled well J-AA to 4002 metres of its targeted 6423 metres TD. ONGC has also encountered a HP/HT scenario at J-AA.

"There was some mud loss," we learn. "Now it’s under control and drilling has resumed.

" Separately, Vantage Drilling’s deepwater drillship Platinum Explorer is drilling an exploration well at ONGC's NELP-IV east coast block NEC-DWN-2002/2. Platinum spud well MDW-25 in water depths of 1552 metres in end-April.

ONGC has so far drilled a total of 3652 metres at the well. It plans a TD of 7032 metres.

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