ABSTRACT
Thermal conductivity measurements have been performed for many years. A good design must consider a number of factors; magnitude of the thermal conductivity being measured, appropriate temperature gradient within or applied pressure to the specimen, moisture in the specimen, ease of specimen fabrication, homogeneity/inhomogeneity and isotropy/anisotropy of the rock. Transient techniques usually measure thermal diffusivity and the thermal conductivity calculated. Claudio Santos investigated the effect of artificial weathering on microseismic activity for Loyalhanna sandstone. While the results for the thermal conductivities do not show large changes in magnitude, a pattern seems to have emerged. The in situ value obtained by Danko and Mousset-Jones corresponds to a moisture content of 95%, not inappropriate for the in situ conditions encountered.
