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Gold/Mining/Energy : Big Dog's Boom Boom Room -- Ignore unavailable to you. Want to Upgrade?

To: Sweet Ol who wrote (132390)	5/23/2010 10:48:40 AM
From: Aggie	7 Recommendations Read Replies (1) \| Respond to of 206118

Hi John, I had not seen it reported that the well flow had broached the seabed - can you provide any reference to this? Yes, the well had lost circulation problems as it was being drilled. One of the features of deepwater drilling is that the fracture gradient (the pressure where fluid is lost) is quite close to the pore pressure gradient (the pressure where fluid flows from the formation into the well). This makes it quite tricky to drill under these conditions, because the drilling fluid required to control the pore pressures may also contribute to inadvertent fracturing and losses. Mississippi Canyon block is sometimes called "Misery Canyon" because of this problem. Lost Circulation would not add any credence to the theory of seabed broaching...It's much more likely that they have a channeled cement job and a failed wellhead seal assembly. Regards to all Aggie