The project will yield an incremental 6.997 million tonnes of crude oil and 5.253 billion cubic metres of gas by 2030, the company said in a statement here.

"The board of ONGC approved the proposal for redevelopment of its giant offshore field - Mumbai High (North) involving a capital investment of Rs 5,706.47 crore, including foreign exchange component of Rs 4,421.76 crore (USD 743.15 million at exchange rate of Rs 59.50 to a US dollar)," it said.

The project is designed to carry forward the success of the previous two editions of redevelopment projects of the fields that were discovered four decades ago. This will give a new lease of life to the giant field.

The project cost includes Rs 2,586.42 crore in creation of surface facilities, Rs 1,992.11 crore in new oil and gas wells and Rs 1,127.94 crore in sidetracking of existing wells.

"The facilities envisaged under the project are installation of five well platforms, one clamp-on facility for wells at an existing platform, associated pipelines and modifications at 13 platforms, drilling of 52 new wells and 24 sidetrack wells," according to the statement.

The facility parts under the project are scheduled to be installed by April 2016, while drilling of wells and the overall project completion is scheduled for May 2017.

ONGC said the Mumbai High North Re-Development (MHNRD Phase-III) envisages further development of LI, LII, S1 and other minor reservoirs along with the major LIII reservoir and the integration of required inputs.

Separately, the company announced an oil and gas discovery at Gandhar in Gujarat.

"This new pool discovery in GS-6B sand in the south western part of Gandhar field opens up the sector for further field growth," it said.

Exploratory well Gandhar #699 was drilled to a depth of 2,904 meters. During conventional testing, it produced oil at the rate of 38 cubic meters per day and gas at 20,069 standard cubic meters a day.

With this, ONGC has notified five discoveries during the financial year 2014-15.


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