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Politics : Rat's Nest - Chronicles of Collapse -- Ignore unavailable to you. Want to Upgrade?

To: Wharf Rat who wrote (10707)	6/1/2010 9:46:21 AM
From: Wharf Rat	Respond to of 24235

The BP Deepwater Oil Spill - Cutting Metal Under Water and Tuesday Open Thread 1 Posted by Heading Out on June 1, 2010 - 8:30am The decision to cut the riser and drill pipe (DP) from the top of the Blow-Out Preventer (BOP) as a first step in putting the Lower Marine Riser Package (LMRP) over the leaking oil well in the Gulf of Mexico is not quite as easy as it might sound to a layman. This post is going to talk a little about a couple of the problems, as well as an alternate way of doing it, and should end with a possibly slightly amusing anecdote. The current plan is to carry out the operation in two parts, first the main body of the riser and contained DP will be cut using a large shearing machine, and then a precision cut will be made with a diamond wire cutter to prepare the surface to act as a support and seal for the LMRP. (Illustrations are below the fold). There are a couple of reasons why this is going to be done this way, and one or two concerns that will need to be watched as the operation continues. (To learn more about the technical basics of LMRP, please go to this post: theoildrum.com theoildrum.com