I know I'm an old school roughneck but never, and I repeat, NEVER have I seen BOP's placed anywhere we couldn't get to them in a heart beat. The levers to operate them sat 4 steps away from lead tongs and the pipe bank. Two steps directly behind the driller. The BOP's themselves were dirctly below the drill floor.
Putting them, as I understand it, as the diagrams show, near or on the ocean floor is beyond my comprehension. I must have misunderstood the details. Another thing. Does it not set uneasy in everyones mind to run the surface casing through 5000 feet of water before ever spuddin' in? Seems to me that an angry ocean could snap that like a toothpick.
There is a lot here that just doesn't add up to me. I would like to write it off as my lack of knowlege of modern technology. But the same physics that applied a million years ago apply today. I just don't get it.
BOP's are probably one of the most maintained and tested pieces of equipment on a rig. Of all things to screw up, that one will cost a ruffneck and a roustabout his ass. God help the Derrick hand.