Estimation of the in-situ thermal resistance of a borehole using the Distributed Temperature Sensing (DTS) technique and the Temperature Recovery Method (TRM)

摘要

The temperature recovery method (TRM) is used to acquire in situ thermal properties, i.e. the thermal conductivity and diffusivity of the bedrock and the thermal resistance o the borehole wall. For a reliable determination of the thermal resistance of the wall, at least six temperature measurements are required within the first hour of recovery after generation of a temperature disturbance.