The Residential Real Estate Crash Index Message Board

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Strategies & Market Trends : The Residential Real Estate Crash Index

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To: Bank Holding Company who wrote (251947)	6/4/2010 4:55:57 PM
From: Peter V	Read Replies (3) of 306849

they tried that already, attached to a recovery hose. hydrate crystals formed from the intense cold and clogged it. THat's why they are using the smaller top cap, with hot water or methanol injection to prevent crystal formation. THere is no way to seal the cone to the seafloor, and the well pressures are on the order of 9000 psi. What I don't understand is why they can't get a better seal on the top cap. You have that big flange to attach something to, and suppose you had some kind of annular (donut) seal to go around the pipe. You get the top cap in place, and crank it down onto the flange, compressing the annular seal against the exterior of the pipe. Alternatively, you undo the flange, and attach a flange that has a very large pipe with a valve on it, some serious valve like a BOP. You keep the valve open while you tighten down the flange (otherwise the well outflow would blow it off), and once tightened on, close the valve. Of course, doing these things via ROV at 5000 feet with a blowing wellhead might not be as easy as it sounds.

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