India’s Oil & Natural Gas Corporation (ONGC) has commissioned a huge water-injection platform offshore the country’s west coast in its prized Mumbai High asset.

The Indian giant confirmed the development in a social-media post and said the new offshore water-injection platform south (NWIS-R) will enhance “oil & gas recovery under Mumbai High Phase-IV redevelopment”.

ONGC’s chairman and managing director Alka Mittal also said in a post that “low salinity water injection” will further help the company in enhancing production from the field.

Indian engineering concern Larsen & Toubro (L&T) fabricated the water-injection and living-quarters platform.

The contract awarded to L&T in 2019 involved engineering, procurement, construction and installation of an eight-legged facility, bridge-linked to the existing water-injection south (WIS) platform.

The project involved up to 15,000 tonnes of fabrication and the work was carried out at L&T’s Hazira facility near the India’s western coast.

ONGC’s new water-injection platform has a design processing capacity of 350,000 barrels per day of water.

It also incorporates a low-salinity water injection system, the first such facility for ONGC, capable of handling up to 125,000 bpd of water.

The offshore platform has been designed to process seawater to make it suitable for injection into the reservoir.

The NWIS-R platform also includes offshore living quarters for up to 100 people.