As it is usual in Oil reservoir modelling, it seem you have a very dense
geophysical information (may be acoustic impedance) and low dense
information from wells.
In these case is natural that the best result are obtained from collocated
cokriging, similar result can be obtained from kriging
Hi Tomislav,
Don't be surprised. It is my experience that cross-validation
might sometimes indicate that best interpolation results are obtained
using the simplest techniques. If your observations are not
too clustered and display no anisotropy, inverse square
distance could yield good results.
