1

. A core, 2

.13” in diameter and 30“ in length, has been recovered from a 5,000 ft deep

sandstone

. In order to run a point -load test, ten 3” long cores have been cut

. The Following

failure loads (in psi) were obtained: 3,420 ; 3,150 ; 2,950 ; 3,280 ; 2,825 ; 3,410 ; 2,780 ; 3,050;

2,950 ; and 3,310

. Estimate the

Young’s modulus

2

. A well is drilled in an oil zone, where the pressure Is above the bubble point

. This shalysandstone formation has the following given conditions:

Rw = 0

.05 Ω m, Rt = 5 Ω m, Rsh = 1 Ω m, Φe = 0

.18

.Using given equations to estimate the oil

saturation, assuming (1) Vsh is negligible, (2) Vsh = 0

.25