Pursuing this strategy, ONGC, at its Board meeting here, has decided to invest Rs 5,713 crore for the second phase of redevelopment of Mumbai High in Western Offshore, company spokesperson said.

Western Offshore alone contributes around 16 million metric tonnes per year thus accounting over 60 per cent of total crude production of ONGC.

Improve oil recovery
The redevelopment project will enhance production from the south field of Mumbai High and will improve the oil recovery to over 346 million metric tonnes with an incremental oil of 22 million metric tonnes, he added. With current crude prices, additional produce is valued at Rs. 53,000 crore ($13.25 billion). This will improve the oil recovery to about 35 per cent by 2030. Cumulatively, Mumbai High has already produced 382 million tonnes of oil till now.

The project envisages drilling of 86 infill wells and five new well head platforms and six clamp-on structures are also planned, he observed. The phase-II follows first redevelopment programme launched in October 2001. “The implementation of Phase-I plan has reversed declining production trend. It has given a new lease of life to the aging field,” the spokesperson said adding “boosted by the success of Phase-I redevelopment exercise, ONGC has gone for Phase-II redevelopment in Mumbai High south field.”