A reservoir-rock sample has a porosity of 0. 18 measured at 14.7 psis. The rock compressibility is0.77 X 10 5psi *.What would the rock porosity be at 2,000 and at 3,000 psis? Plot the relationship be tween ¢ and p in a pressure range of 14.7 to 5,000 psis

1. Given the figure below plot the pore pressure, total stress and effective stress at the top, bottom and midpoint of each soil layer, provide a plot with all umerical values of depth and stress in tabular form and on a depth v stress plot. Oft Sand Vmoist = 122 pcf Ysat = 151 pcf I 12ft 30ft Clay Ysat = 144 pcf %3D 70ft Sand Ysat = 128 pcf 120ft