capping stack. valves to the kill and the choke lines for the new capping stack will be opened, and the center bore is already opened. we will be venting basically through three different exits, on the capping stack, kill line and choke line and the main line going through the bore. and then in sequence, we will attempt to close the stack down and assess the pressure readings as we do that. the first thing we did will do is the close the main ram. the middle one were be closed to shut down outward through the capping stack. we will take pressure readings. we will then close the kill line. which is the second remaining outlet, and take pressure readings. the third and most critical will be the choke line. there's a special device that's been built on the capping stack. you will see it, if you look at the video, it is yellow, long horizontally and there is an exit for the hydrocarbons.