BSEE, Coast Guard Continue Preparations for Well Intervention Work at South Timbalier 220

The Bureau of Safety and Environmental Enforcement (BSEE), U.S. Coast Guard, and Walter Oil & Gas Corporation (Walter), through the Unified Command, continue to oversee and coordinate response efforts to secure the South Timbalier 220 natural gas Well A-3. Safety of personnel and protection of the environment remain the top priorities.

All available options for a safe resolution to the incident continue to be under consideration. After completion of a site assessment, personnel are on board the Hercules 265 jack-up rig and in the process of installing gas detectors and high-capacity water jet fire monitors for contingency purposes.

The Superior Derrick Services’ barge, “Performance,” arrived on location yesterday and is setting anchors today. The barge will be used by response teams to assist with well intervention activities.

BSEE approved Walter’s permit application to drill a relief well. The Rowan EXL-3 jack-up rig, contracted by Walter, is on location at South Timbalier 220 and crews are preparing the rig for drilling. A relief well is drilled to intercept the target well. Once intercepted, drilling mud followed by cement will be pumped into the well to secure it.

A slight sheen continues to be detected on the water’s surface according to visual observations. The sheen is dissipating quickly. The Coast Guard continues to maintain a 500-meter safety zone around the site. Firefighting and other marine vessels remain onsite with personnel from Walter, Hercules, and other professional engineering contractors, and relevant federal agencies.

BSEE’s investigation into the cause of the loss of well control continues in coordination with the Coast Guard.

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Press Release, July 29, 2013