Close Call On Rig – Explosion Danger When Welding Tank

 close call, confined space, explosion, Offshore, Safety Alerts, safety flash  Comments Off on Close Call On Rig – Explosion Danger When Welding Tank
Apr 222010
 
image

The weld area

An alert rig site senior mechanic spotted a welder carrying out a job that could have led to an explosion. It is a reminder to check thoroughly what’s inside a tank before welding the outside.

A safety alert from the International Association of Drlling Contractors says: “The rig accumulator supply tank required maintenance which included the task of welding on the tank and piping. The rig site senior mechanic was walking within the vicinity of the job being performed and noticed  the welder welding on the tank. The operation was immediately stopped by the mechanic when he realized
the potential explosive atmosphere that existed.

The tank itself had not been purged. The tank lid was still closed and secured in place. The contents of the tank had not been emptied nor cleaned prior to the welding taking place. The welder was not aware of the tank contents. There was not a well defined fire watch being utilized. A fire extinguisher or pressurized water hose was not within the working vicinity as required by  policy and the Permit to Work procedure.

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Ike – 28 down, 3,772 To Go

 accident reporting  Comments Off on Ike – 28 down, 3,772 To Go
Sep 182008
 

Hurricane Ike has destroyed some some 28 oil and gas production platform in the Gulf Mexico and several others have been significantly damaged, reports the US Minerals Management Service, MMS. Casualties include three jack-up rigs destroyed, and one severely damaged while two rigs that were earlier reported to be drifting have been secured.

Daily production losses have been initially estimated at 11,000 barrels of oil and 8.2 million cubic feet of gas. Production from the Gulf of Mexico accounts for 25 percent of the oil and 15 percent of the natural gas produced in the US. As of June 2008, daily production estimates for the Gulf of Mexico were 1.3 million barrels of oil and 7.0 billion cubic feet of gas. Since then, gas production from the Independence Hub facility increased and in August 2008 gas production from the Gulf was estimated at 7.4 billion cubic feet of gas per day from some 3,800 platforms ranging from single well caissons in water depths of ten feet to a large complex facility in water depth greater than 7,000 feet.

“To date, most of the destroyed platforms include older facilities with small levels of production,” says Lars Herbst, regional director, MMS Gulf of Mexico Region. “We expect additional reports of damage as the weather allows more flights and operators are able to board the platforms and begin inspections.”

Early reports also indicate that there is some pipeline damage. The full extent of damage will not be available until operators are able to test the systems.

MMS has been conducting helicopter fly-overs to investigate reports of oil spills/sheens. While it is too early for definitive reports, there was one reported sheen as of September 15, 2008 estimated to be nine barrels; subsequent investigations showed that the sheen had dissipated.

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In The Wake of the Dolphin

 anchoring.  Comments Off on In The Wake of the Dolphin
Jul 172008
 

After the loss of the ATHS Bourbon Dolphin and eight of its crew in 2007 while moving anchor during a rig moves, the Marine Safety Forum set up a workgroup to develop generic guidelines coverting rigmove operations. The guidlines are now available and be downloaded here.

See also

MSF Studies Bourbon Dolphin Tragedy

The Death of the Bourbon Dolphin

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