Us in the offshore oil and gas industry know the pain and anguish if you have to do welding offshore. If welding must be done, the location is usually shut down, any potential hydrocarbon sources are purge or kept as far away from the flames and sparks, and a fire watch (with fire extinguishing equipment) must be in place during the welding activity.
Why do I mention this? Taking a page out of Malaysia’s The Star:
MIRI: The explosion that ripped apart a fuel-laden vessel in the Miri River and killed two crew members last week was possibly sparked off by human carelessness, initial investigations revealed.
A spark from welding work being done on the ship could have triggered the fire which resulted in a huge explosion at about 9am on Sept 13.
The ship, Ark 2, was berthed along the bank of the river, adjacent to a petrol-station, for servicing.
It was supposed to ferry hundreds of drums of fuel for people in the deep interior settlements.
State fire chief Mohd Shoki Hamzah said yesterday investigations and testing was still being carried out on board the wreckage to pinpoint the cause.
Miri police chief Asst Comm Jamaluddin Ibrahim said the initial probe showed that the fire and subsequent explosion happened when maintenance workers were carrying out servicing on board the ship.
“There must be strict compliance with safety measures on board such high-risk vessels,” he said.
Experts from the Sarawak and Brunei forensic departments were trying to identify a corpse found in Brunei’s Seria district, 50km from here, to determine if it was the vessel’s missing crew member Ting Huang Ung.
Ting went missing after the explosion and was believed to have been thrown into the river from the impact of the blast.
Brunei police found the body near Kuala Belait.
The other crew killed in the blast, Richard Emang, was found floating near Bintulu, 250km south of Miri two days ago.
Posted by Wata 
Wata - Malaysian Oil and Gas Engineer 