BP oil spill.

The BP oil spill happened a few years ago in the gulf of mexico. An oil well exploded and tons of oil started leaking and damaging the waters and land. They tried many different ways to stop it and one of the ways was with a containment dome. A containment dome is a 4-story 70 ton structure the company planned to lower into place over one of the 3 leaks to catch the escaping oil and allowed it to be pumped to the surface. They wanted to install a shut-off valve at the site of one of the leaks. Floating booms were also used but were damaged by heavy winds. They also wanted to try cementing, which would seal the well to control pressure from the oil and gas beneath. Another thing they tried to install was a deep water valve, which would be used as a cut off of a last minute resort in explosion. Another device they had was a blowout preventer. The blowout preventer was a device to seal leaks. It did not work properly because natural gas started to seep through the wells. Two other main groups involved in the oil spill was Transocean and Halliburton. BP leased the rig from Transocean, while Halliburton was providing several services on the rig. They say that Halliburton will not be at fault but Transocean may have some investor worry.