ONGC Strikes Three Times Offshore India

ONGC has registered three oil and gas finds, one in shallow waters on West Coast and two in deep waters in Krishna Godavari (KG) Basin on East Coast.

In western offshore, ONGC has made a significant Oil and Gas find at a location 60 km south, southwest of Mumbai High Field. This is a pre-NELP block where ONGC is the 100% operator. The well was spudded on October 20, 2004 in water depth of 82 meters and completed to a depth of 3949 meters. Multiple Oil & Gas bearing sands have been identified in the Panna Formation. Testing of the two objects has been concluded. The deeper object has flowed 490,376 cubic meters of Gas per day and 2491 bbl of oil per day though 1/2" choke. The shallower object, has flowed 451,838 cubic meters of gas per day and 2045 bbl of oil per day through 1/2" choke. The oil and gas are of high quality.

This find has opened up a new exploration opportunity in sands within the Panna Formation off Mumbai High field. The integrated interpretation of 3D seismic data and analysis of attributes indicate a possible aerial extent of about 25 sq km which is likely to increase after delineation drilling.

On the East Coast, ONGC has made two more gas strikes in its on-going "Sagar Samriddhi" Deepwater Exploration campaign. Well VA-2 in block KG-OS-DW-IV at allocation 35 km off Amalaupram coast, was spudded on March 24, 2005 in 689 meters water depth targeting potential meandering channels. This is a pre-NELP block where ONGC is the 100% operator. The well has been completed to the target depth of 2614 meters encountering a total pay thickness of 17 meters. On successful completion, the well flowed 326,545 cubic meters of gas per day through 24/64" choke. This prospect will be integrated to up-scaled exploitation plan of G-1 and GS-15 structures where ONGC is developing India's first digital oil field in KG basin.

In another location in KG offshore, ONGC's drillship Sagar Vijay has emerged third time lucky in this exploration campaign. This is again a strike in pre-NELP nomination block IG, where ONGC is the 100% operator. Well G4-4, under drilling at a water depth of 331 meters, is located 38 km from Amalapuram coast. The well, targeted to explore the channel levee complex in the area, has already established the presence of shallower pays hitherto not encountered in any of the drilled wells of G4 prospect. Presence of gas has been confirmed while drilling and through wire-line testing. The lead through this strike would yield fresh impetus in the integrated development plan of G4 and GS-29 prospects, taken up on fast-track by ONGC.

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