Referring now to FIG 1, an isometric view of generally accepted prior art graphs, which are superimposed over a subterranean strata column with two bore arrangements relating {HEAD ~ subterranean depths} to slurry {TAIL ~ densities} and equivalent pore and fracture gradient pressures of subterranean strata are shown 
to slurry
Referring now to FIG 1 , an isometric view of generally accepted prior art graphs , which are superimposed over a subterranean strata column with two bore arrangements relating { HEAD ~ subterranean depths } to slurry { TAIL ~ densities } and equivalent pore and fracture gradient pressures of subterranean strata are shown
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH