ONGC reports two gas finds offshore western India

Offshore staff

NEW DELHI, IndiaONGC has discovered two gas accumulations offshore western India.

Exploratory well MBSO53NAA#1 was drilled in NELP block MB-OSN-2005/3 in the Mumbai Offshore basin, investigating the Pliocene Chinchini formation.

During tests, the 932-938-m (3,058-3,077-ft) interval produced 47,128 cu m/d (751,567cf/d) through a ½-in. choke. Another sand in the 585-589-m (1,919-1,932-ft) interval in the same formation flowed 21,282 cu m/d through a ½-in. choke.

According to ONGC, this was the first discovery beyond the shelf margin and also the first in the Pliocene formation in the Mumbai Offshore basin.

Well GK-28#10 (GK-28-L) in the GK-28 concession in the Kutch Offshore region of the Western Offshore basin was exploring Nakhtarana (Palaeocene), Jakhau (Early Eocene) and Chhasra (Mid-Miocene age) formations, and Deccan basalt.

During tests, the 1,452-1,520-m (4,764-4,987-ft) interval in the Deccan Trap produced 134,846 cu m/d (4.76 MMcf/d) through a ½-in. choke. This is the first gas pool discovered in Deccan basalts throughout the Western Offshore, and the play could provide critical gas volumes to the GK-28/GK-42 development, ONGC said.


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