Numeric Model - RBF interpolant trouble

Hey there, I'm trying to make an extrapolation from fracture data in geothermal wells.
The problem is when I load my point data this is upside down in the Z axis in the drillhole data and the numeric model isn't consistent.

I'd thank some help or if you can sugest a different approach for this problem

Note: I'm a beginner using numeric models in leapfrog.