[Ernest_at_the_Beach]

Would you remember where you saw such a high pressure number?

That is way way higher than anything I have seen.

[Domangart]

Dr Bill KGO radio. The well head is about 3,300lbs but if you attempt to close it then the pressure will increase to 175,000 lbs I recall the diving math was something like 33ft=14.1lbs times 5000 feet and the drill is at 18,000 feet plus the earth pressure at that level