Gas Migration in EBS and Geosphere (GMT) - Investigations from top of Layer 12

The scientific excavation programme started with the removal of the gas collectors system on top of layer 12.

High resolution geophysical logging was used to identify and variation in buffer properties through the EBS and techniques for sampling the sand/bentonite mixture were tested.

The gas collection system on top of layer 12

Geophysical borehole logging in the sand/bentonite

Schematic of sampling and testing activities


The GTS underground facilities are also available to interested 3rd parties for underground testing and research. The GTS offers cost-effective access to a fully developed, well characterised underground research facility with round the year logistical support - please contact Dr. Ingo Blechschmidt, Head of the Grimsel Test Site, for further details.