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So-called bottom kill. more mud and cement will be injected into bedrock 2 1/2 miles below the sea floor. this as new estimates are out at the bp price tag. the company could be fined as much as $21 billion if it is found to have committed gross negligence or willful misconduct. the fine could drop to $17.6 billion if the government credits the company for the oil it has already recovered. joining us once again tonight, former oil executive, bob cavnar, who writes about the industry at dailyhurricane.com. he's also author of "disaster on the horizon," which is due out in october. good evening,...

In the well-being filled with mud. we now have equalized the pressure -- the hydro static pressure of the sea water with the pressure inside the capping stack. and basically have reached a static condition in the well that allows us to have high confidence that there will be no oil leaking into the environment, and we have significantly improved our chances to finally kill the well with the reliefwells when that does occur. the discussions that are going on today between the science team down in houston and the bp engineers are regarding whether or not we should follow up the mud that has been...

Different points. the yet to be finished relief wells will be used to execute a shof called bottom kill. more mud and cement will be injected into bedrock 2 1/2 miles below the sea floor. this as new estimates are out at the bp price tag. the company could be fined as much as $21 billion if it is confined to commit gross negligence or willful misconduct. the fine could drop to $17.6 billion if the government credits the company for the oil it has already recovered. joining us once again tonight, former oil executive, bob cavnar, who writes about the industry at dailyhurricane.com. he's also au...

His students demonstrated the procedure for cnn earlier. look at this. >> as can you see, the well is flowing from the top. when the well is flowing, you can't do a static kill because as soon as you inject mud it is blown out into the ocean. to have the static kill you must have the apparatus at the top to control flowing. the brown there simulates mud. the blue area simulates the ocean. this is the primary well, and this is a capping stack which for a series of hours will control flow. this is called a static kill operation because there is no flow of the well. we're going to kill the well b...

Those are things we need to learn. regarding the total volume of mud that we pumped in, it will vary on whether or not we are pumping into the casing or the anulus as well. we need pressure readings and there are various lines to describe how much volume and pressure there is if you had the casing and the anulus and filling it up or just dealing with the casing. there are charts and automatic pressure readings on screens launched by the senior leadership up there and i'll be joining them when i finish the briefing here as that moves forward. >> from the ap. how serious was this leak and how lo...