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 by mutting mud in it. mud's density allows us to create pressure on the bottom of the well great enough to stop the flow from the reservoir of hydrocarbons, so the oil and gas. go ahead and open the valve. even when the valve is open,