As an engineer in the oilfield industry, let me assure you pressures of 20-30 kpsi are commonplace. Their equipment was designed to easily handle them.
Google "Autoclave Engineers". They sell 60 kpsi plumbing components off-the-shelf.
But when you pursue shoddy practices in the name of economy - inadequate centralizers, using seawater where drilling mud should have been, allowing your failsafe device, the blowout preventer, to fail operational tests - you're an accident waiting to happen.
Think of an illegal driving a van at high speed with bald tires, shot suspension and faulty brakes and you'll get the picture.
I stand educated. Thank you gentlemen. THIS is why FR is the BEST!