PRACTICAL COMPANION TO RESERVOIR STIMULATION 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 0 0.5 1 1.5 2 2.5 3 3.5 4 Time from the Beginning of Proppant Injection (hr) Figure E-6-Slurry concentration for ramped proppant schedule (Example E-7). E-12