Simple Kriging (Geostatistics)

Given 3 sample data the thickness of a reservoir (in feet),

with the coordinates and configuration data as shown in the figure:

Part 1: Estimated value at location u0 and error variance value. Assume that the variogram is isotropic modeled by:

Part 2: To study how changes in sill values affect the estimation results of x*(u0) and error variance, use the following spatial model:

Part 3: To study how changes in range values affect the estimation results of x*(u0) and error variance, use the following spatial model:

Compare and analyze the calculation results of part 1, 2 and 3 ..!!

To make calculations easier, you can use Excel.

xlz) = 10, x(z) = 25, x(z) = 20, dan m=18 = (250, 450) o u3 (200, 400) (225, 400) (300, 400) 100|1 - expl X(L) 3L Expl 100 for L 20. Y(L) = 2001 exp{ exp(104) 3L for L 20, 001 = (7) 100[ exp(= 3411 1 - for L 20. 200 xlz) = 10, x(z) = 25, x(z) = 20, dan m=18 = (250, 450) o u3 (200, 400) (225, 400) (300, 400) 100|1 - expl X(L) 3L Expl 100 for L 20. Y(L) = 2001 exp{ exp(104) 3L for L 20, 001 = (7) 100[ exp(= 3411 1 - for L 20. 200