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The enormous pressure lifting the column of oil in a leaking oil well canthwart efforts to seal the top of the well and prevent oil from rising. Whenthe oil cannot be stopped completely, we propose to slow its flow by fillingthe well with a porous medium. That medium consists of countless small, dense,streamlined objects that are dropped into the well and descend through therising oil at terminal velocity. The resulting heap of objects couples to theoil via viscous and drag forces, dissipating the oil's energy and upwardmomentum and significantly reducing its rate of flow.

Reducing the Leak Rate from a Damaged Oil Well by Filling It with Dense Streamlined Objects