question on the salt caverns that house the US Oil reserve.
The US SPR which is kept in salt caverns, and a lot of commentators (non-engineers) are saying the 'operational limit' = 70mbbls. "else the caverns get damaged".
My theoratical question is there a way to get it to near 0. As a mediocre ex mining engineer i can think of several (costly) solutions (saltwater, chemicals etc), but am wondering if there is a simple, cheap solution.
It seems bizarre to me that an industry that can send a drill ship to deep offshore, send a drill to seabed several km from the water surface and then drill another few km into the earth, cannot figure this out if given the right incentives.
- also a lot of commentators are talking about tank bottom in cushing as Last 10 % is sludge. Now theoretically if one were to take out every bit, wouldn't this mean that you just put chemicals to re-liquify oil and just siphon the last bit out.