Replies to post #841 on The Rising Influence of Rising Affluence

[OakesCS]

Kadaicher,
thanks for all the BOP info. If pipe is in the hole, can the pipe rams collapse the pipe or are the shear rams (and annular) the only way of cutting off flow if control is lost when the drill string is in the hole?

i'm also not clear on how far down into the BOP the riser extends.
thanks,
Charlie