The Mumbai High Field, formerly called the Bombay High Field, is an offshore oilfield off the west coast of Mumbai, in Gulf of Cambay (now Khambhat) region of India, in about of water. Mumbai High has three blocks separated by east–west trending faults, all three with different gas-oil contacts but approximately deep.

Production

thumb|left|ONGC platform at Mumbai High in the [[Arabian Sea]]

Mumbai High Field reached its peak production level of 20 million tonnes per year in 1998.

As of 2004, it supplied 14% of India's oil requirement and accounted for about 38% of all domestic production.

ONGC approved construction of seven pipelines with risers and associated top-side facilities in MHN in April 2007. These pipelines are vital for optimum utilisation from Mumbai High.

Crude oil produced from Mumbai High is considered to be of very good quality as compared to crudes produced in middle east. Mumbai High crude has more than 60% paraffinic content while light Arabian crude has only 25% paraffin.

In November 2009, output of Mumbai High fields, that accounted for half of the India's domestic oil production, fell 5.3% to .

On 1 January 2018 the output of the field was stated as .

In 2020 the output of the field was and the output of the Bassein field was .

ONGC temporarily suspended operations at two drilling rigs in the Mumbai High and Bassein fields after 54 employees tested positive for coronavirus and one died but the oil and gas production was not impacted.

As of 2020 Mumbai High and Bassein were India's top oil and gas producing fields, accounting for almost two-third of the country's production.

The field produces in 2024. ONGC believes the field still has a balance reserve of 80 million tonnes (610 million barrels) of oil and over 40 bcm of gas and hence, needs partners who can help tap them.

2005 major accident

On 27 July 2005, a major fire destroyed the production platform, leaving at least 22 people dead despite rescue measures taken by the Indian Coast Guard. The platform accounted for , or 15% of India's oil production. Rebuilding this was expected to take upwards of 4 months and estimated to cost around ₹1,200 crore or US$300 million.

References

  • Mumbai Offshore Basin