Be careful. There is no difference between a relief well and a regular well.

What do you do if your relief well blows?

Maybe if you drill two simultaneously, making sure they stay in sync. But the relief well needs to intersect with the regular one, so that might not actually be possible.

> and here's hoping no major hurricanes this summer.

Oh no. Quite the opposite! A hurricane would be the best thing possible. It would clean the entire area like nothing else can.