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Reply #39: Or the EXACT same thing happed that happened in 1979. [View All]

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Statistical Donating Member (1000+ posts) Send PM | Profile | Ignore Wed Jun-02-10 03:13 PM
Response to Reply #37
39. Or the EXACT same thing happed that happened in 1979.
Sheer rams happen to line up with a joint (screwed connection of 2 pipe sections). The joint can't be cut by the sheer rams.

The sad/pathetically funny part. Joints make up about 9% of drill string and everyone knows that no sheet ram on the planet can cut them.

So even if everything works exactly as designed you have a 1 in 11 chance of BOP not sealing well just because of pure luck that joint lines up with the shear rams.

:(
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