Chevron Reports Minor Slick From Leak in Campos Basin, Offshore Brazil

Chevron and Brazilian regulators reported that a small, fresh oil slick has appeared near the site of Chevron's blowout last November in the deepwater Frade oil field in Brazil's prolific Campos Basin. This is not entirely unexpected given the nature of the problem that Chevron had with the well being drilled by the SEDCO 706 rig: an unknown amount of oil escaped laterally from the well into surrounding bedrock, and worked its way up to the seafloor along a pre-existing natural fault.  It will take some time for all of that oil to emerge, so we've been anticipating chronic small oil slicks at this location.

But optical satellite imagery of this area (MODIS and MERIS) have had problems with clouds and haze for the past few days, so we haven't seen any sign of the latest slick. Radar images don't have that problem, but the most recent radar image we have was taken at about 9pm local time on March 9, and it looks clean around the SEDCO 706 site:

Detail from radar satellite image taken March 9, 2012, showing area of reported Chevron leak. Envisat ASAR image courtesy European Space Agency.

[READ MORE...]

 [[Location:-21.889431,-39.833091]]

Small Slick at Platform P-51, Marlim Sul Field, Brazil

 An Envisat ASAR radar satellite image taken on February 23, 2012 shows a small slick apparently emanating from Platform P-51 in the Marlim Sul field of the Campos Basin, about 70 miles offshore:

Envisat ASAR image taken February 23, 2012 showing small slick apparently emanating from location of Platform P-51.  Image courtesy European Space Agency.

Covering 10 square kilometers, this slick represents a spill of about 2600 gallons, assuming an average oil slick thickness of 1 micron.

 [[Location:-22.635572,-40.093169]]

Oil Spill from FPSO in Santos Basin, Brazil

Brazil has suffered another oil spill related to FPSO operations, this time in deep water in the Santos Basin. Last week a spill occurred at the Osorio terminal while Campos Basin oil was being offloaded from a shuttle tanker, and fouled the beach near Tramandai. Yesterday, Petrobras reported a spill of about 6700 gallons from the riser pipe of an FPSO in the Santos Basin, forcing them to shut down the country's fifth-most productive oil well. 

[[Location:-25.527500,-43.437833]]