ONGC wants to unlock 1bn barrel KG potential

Vol 18, PW 3 (25 Sep 14) Exploration & Production
     

ONGC is planning a massive Rs2800cr ($460m) exploration campaign to unlock the potential of five pre-NELP offshore areas in the KG basin on India’s east coast.

“We’re evaluating how many rigs we need,” confirms ONGC. “Since we want to drill at shallow and deep water locations we might need both semisubmersibles and jack-ups.

” In an application submitted on August 26, ONGC details 35 proposed exploration wells it wants to drill across 10 fields over three years together holding an estimated 163m tonnes (1.2bn barrels) of in-place oil and oil equivalent gas (O+OEG). Confusingly, ONGC categorises the 10 fields into five areas: IA, holding PML blocks GS-49 and GS-49-Ext IB, holding PML blocks GS-29 and GS-29-Ext; IG, holding the Godavari PML; IE, holding the Yanam PML; and finally, IG, holding PML fields GS-15, GS-23, Vinateyam and Vinateyam-Ext.

Five wells will be drilled to 4500 metres TD in water depths of 10 metres at IA, holding an estimated 5.4m O+OEG; 15 will be drilled to 5000 metres TD in water depths of 8 to 550 metres at blocks IB and IG, holding 71m tonnes; six are planned to 5200 metres TD in water depths from zero to 50 metres at IE (Yanam) near the shoreline, with an estimated 44m tonnes reserves; and nine are planned to 3200 metres TD in water depths of 26 metres at IF, holding 33.3m tonnes.

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