reply to post by CajunBoy
And the super slow motion train wreck is still "on track" so to speak.
@CajunBoy and anyone else with some knowledge or insight into this mess.
Now we have at least one more cavern involved and it released God knows how much methane into the surrounding underground strata. So my question now
is "Just how many more caverns and rock domes are we finally going to see compromised before this plays out?" and "When it does play out how much,
if any, of the Bayou Corne and surrounding areas will be left inhabitable?".
If there is as much methane under the cap rocks as it sounds like, how much pressure is it under and what happens when that pressure
Are there strata weakened by the continuous drilling and salt mining that are being buoyed up by the methane pressure that
will be in danger of collapse when enough pressure is released.
Just to give you an idea of the effect even a small amount of pressure can have on whatever is containing it, consider these numbers.
Say you have a cylindrical tank that is 4 feet in diameter, for this example length is not important.
Now let's say that the tank is pressurized to a measly 10 PSI (Pounds Per Square Inch).
Now we do the math...
A circle 4 feet in diameter has an area of 12.566 square feet. (Pi X (r squared))
A square foot is comprised of 144 square inches.
12.566 X 144 = 1,809.5 square inches of surface area.
At just 10 PSI the 4 foot diameter end of the tank alone is under a total loading of 10 X 1,809.5 or 18,095 pounds of total loading.
Go to 100 PSI and the total loading of that 4 foot diameter tank end is now a total of 180,950 pounds.
Now apply those figures to a cap rock that covers an acre or more and you can see that even at a paltry few PSI that cap rock is being buoyed up by a
tremendous amount of total pounds absolute.
What happens now if over the years the cap rock, and the structure holding it up, have been weakened by drilling, mining and storage activity? What
will be the effect of that pressure being released?