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This thing came to my mind, and I am going post it on The Oil Drum :-)

A simple question is: If we would plug a sieve deep down in the well, would the upward pressure above the sieve be lessened? Newton's third law suggests that the lifting force (of the oil on the sieve) would be equalized with sieve's pressure downwards, and presumably that would be the pressure difference below and above the sieve.

A "half-hollow" massive cylindrical sieve (with obstructions across horizontal sections) could be propelled very deep down the well, perhaps deeper than the presumed cracks. On the way down it would have a low-resistance "aerodynamic" configuration. When it would reach the well diameter just about its own, it would plug itself with rubber brakes all over its surface, and then would spring into a highly obstructive inner configuration. If that would give a pressure effect at least for some time, the well could be top-killed against the lower pressure. Two or more such sieves could be serially plugged (perhaps with complementary sieve grids), giving a cascade of lower pressures.

Would that work?

by das monde on Thu Jun 17th, 2010 at 02:21:49 AM EST

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