Clay Conference 2021

June 14-17, 2021
Nancy, France - Centre Prouvé, 1 Place de la République

Learn more about a geostatistics-based methodology that allows linking borehole geophysical measurements to PVC cased core loggings. Feel free to ask your questions during the poster presentation.

Poster session

Non-destructive identification of silt-clay layers on borehole core logs in PVC liners

by J.-M. Chautru & H. Binet from GEOVARIANCES, A. Berckmans & L. Wouters from ONDRAF/NIRAS and Prof. Em. N. Vandenberghe

 

Abstract:

The study aimed to link borehole geophysical measurements to PVC cased core loggings. A first approach used Factorial Kriging to estimate core logs at the same frequency as borehole logs. Results were not satisfactory because of the dissimilarity between the resistivity curves in logs and cores. A second approach involved the calculation of correlation coefficients for making core logs fit borehole logs in an optimized way, then the estimation of continuous core logs using multivariate geostatistics and core and borehole data.