National Incident Commander: Oil could be gushing up through “multiple rings” in well


Allen: Relief well timing depends on oil's spread, AP, July 8, 2010:

The gushing well has several concentric rings, and oil could be coming up through multiple rings, Allen said. ...

If the oil is coming through the outer ring of the well, then they will have to pump in mud and cement to stop that layer first. Then they would have to drill through the hardened cement and repeat the process in each ring until they reach the center pipe and do it again. ...

"If you have to exhaust all means for the ways that hydrocarbons are coming up the pipe, then that puts you into middle August," Allen said.

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