Laboratory Column Experiments (FORGE) - Aims

The main aims of the column experiments are:

  • To obtain larger scale (decimetre scale) 2-phase flow properties for host rock and EBS materials
  • To assess the concept of and quantify the gas entry pressure of sand/bentonite (S/B) mixtures
  • To visualise gas and water flow in S/B mixtures
  • To demonstrate the functioning of gas permeable plugs and seals on a decimetre scale
  • To provide experimental evidence of cement-EBS interaction under realistic boundary conditions

Laboratory Column Experiments (FORGE)


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.