Gas leak reported at Mumbai High fields, no loss of life or property

Operations safe; no loss of life or property reported, says ONGC

By: Press Trust of India | Mumbai | Updated: July 19, 2014 10:17:40 pm
 Operations safe; no loss of life or property reported, says ONGC (Photo: AP) Operations safe; no loss of life or property reported, says ONGC (Photo: AP)

A high pressure, highly inflammable gas leak was on Saturday reported at a well state-owned ONGC was drilling at its prime Mumbai High oil and gas fields, off Mumbai coast.

Oil and Natural Gas Corp (ONGC) immediately activated safety procedures, shut down drilling operations and evacuated all non-essential staff.

“There was no blowout. It was just a gas leak. All operations are safe. There is no loss of life or property,” a top source said. “There was no blowout, only some gas leaked unexpectedly during drilling.”

ONGC was drilling a side track well from a platform called NF on the Mumbai High North field.

“A gas pool was not expected at shallow depth of 1000 to 1100 meters. But during drilling operations, some gas came out and we have taken all precautionary measures,” he said.

Side track well is a secondary wellbore away from the original wellbore. This is done to bypass an unusable section of the original wellbore or explore a geologic feature nearby.

The source said drilling operations were stopped and experts called in to control the gas flow.

“All non-essential people have been evacuated,” he said, adding there were 82 personnel at the drilling site, of which 40 have been evacuated.

Fire fighting equipment have been moved to the location and Navy, Coast Guard as well as helicopter company Pawan Hans are assisting in rescue operations.


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

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 110,000 barrels per day (17,000 m3/d), or 15% of India’s oil production. Rebuilding this is expected to take upwards of 4 months and estimated to cost around Rs. 1200 crore or US$300 million.

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

In November 2009, output of Bombay High fields, that accounts for half of the India’s domestic oil production, fell 5.3% to 347,197 barrels per day (55,199.9 m3/d).


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