ROV campaign completed at MC 252 wellheadNews // December 19, 2012
Remote operated vehicles (ROV) investigating the recurring sheen near the MC 252 wellhead concluded operations on 16 2012.
ROVs inspected the sunken Deepwater Horizon Platform wreckage and the surrounding area.
No sources of leaking oil were identified. During operations, an unidentified substance inconsistent with oil was seen emitting from several areas of the rig wreckage, and samples were collected for further lab analysis.
"No apparent source of the surface sheen has been discovered by this effort," said Captain Duke Walker, Federal On-Scene Coordinator for Deepwater Horizon.
"The next steps are being considered as we await the lab results of the surface and subsurface samples and more detailed analysis of the video shot during the mission."
Out of caution, the Macondo wellhead was also observed and, as expected, was found to be secure. In September 2010 the well was closed off and cemented.
Satellite surveillance will continue to monitor the sheen while future steps are being considered.
The realtime ROV operations were observed remotely by the Coast Guard, Bureau of Ocean Energy Management, Bureau of Safety and Environmental Enforcement, BP, Transocean and state on-scene coordinators from Louisiana, Mississippi and Florida.
The US Coast Guard had observers onboard Olympic Triton which launched and controlled the ROVs during the operation.
Video of the ROV inspections will be made available shortly and posted on www.restorethegulf.gov.