The Mumbai High Field, formerly called the Bombay High Field,[1] is an offshore oilfield 160 km off the west coast of Mumbai, in Gulf of Cambay (now Khambhat) region of India, in about 75 m of water. The oil operations are run by India's Oil and Natural Gas Corporation (ONGC).
Mumbai High field was discovered by an Indo-Soviet oil exploration team operating from the seismic exploration vessel Academic Arkhangelsky during mapping of the Gulf of Khambhat (earlier Cambay) in 1964–67, followed by a detailed survey in 1972. The naming of the field is attributed to a team from a survey run in 1965 analysed in the Rashmi building in Peddar Road, Cumballa Hill, Mumbai. The first offshore well was sunk in 1974.
Every oil resource rock requires Structural traps which are mainly salt dome, coral reefs, fault trap and fold trap. In case of Mumbai High, the structure is a "north-northwest to south-southeast trending doubly plunging Anticline with a faulted east limb", 65 km long and 23 km wide", and is the most probable reason to call it "Mumbai High".
Geology
This is a carbonate reservoir, the main producing zone, L-III, consisting of sedimentary cycles of