You are at:

Chronology

20 April: Explosion followed by a fire on Deepwater Horizon.
 
22 April: Rig sinks.

 
28 April: Failure of the attempt by 4 underwater robots to close the well's valves. Beginning of oil slick burning operations.

 
29 April: Oil spill is declared a "national disaster".

 
30 April: Oil reaches the US coastline (Louisiana).

 
2 May: Fishing ban in affected federal waters.

 
First visit onsite by President Barack Obama.

 
3 May: The platform Development Drill III begins to drill a first relief well.

 
8 May: Failure of the attempt to place a containment chamber over the well.

 
14 May: The platform Development Drill II begins to drill a second relief well.

 

 17 May: Insertion of a tool tube in the riser lying on the seafloor to recover 60% of the oil.
 
 27-28 May: Failure of the Top Kill operation which aimed to inject heavy drilling fluids into the well.
 
 1 June: A legal enquiry is opened to investigate the causes of the accident.
 
 3 June: A containment cap, known as the Lower Marine Riser Package Cap, is placed over the well to increase the oil and gas recovery capacity.
 
 12 July: A funnel, baptised Top Hat 10, is placed over the well, enabling the valves to be closed: the leak is stopped.
 
 2 August: Beginning of the Static Kill operation which aimed to inject mud and cement down into the main well.
 
 19 September: Definitive plugging of the well after injecting materials and cement via the relief well drilled by Development Drill III.

 

shoreline clean-up organization
shoreline clean-up organization
Last update: 28/02/2011