the reality of heat, page-4

Thats the surface pressure. For instance down the bottom of the hole at Hab with GDY the pressure is 12000psi. The increasing diameter of the pipes from bottom to top drops the pressure. Remeber Hab holes are into a overpressured system, GRK holes are planned to be in homogenous granite and they will be introducing water. GDY has hot water already. GRK will get water from OD.
As for
With GRK they are calculating the pressure at the bottom of the well will be approx 4500psi.
This is where the engineers get a brainache.

As for Petratherm, they don't know if the sediments host water or not. I haven't got any idea on if they will be in overpressured wet systems (ala GDY) or dry systems. I don't think they will either untill they drill. On that note GRK won't know for certain either until they drill their wells.
cheers
omg