Figure F68. Temperature versus time and interpreted equilibrium temperatures for Hole U1301C deployments of the DVTP. A. Temperature versus time, shifted to show time since tool penetration. Small vertical bars indicate the range of data used in subsequent analyses of equilibrium temperatures. The data from deployment in Core 301-U1301C-14H indicate that the tool did not penetrate into undisturbed formation. These data cannot be used to estimate an equilibrium temperature. B. Plots of temperature versus the theoretical decay function for the DVTP, based on numerical model of tool cooling (Davis et al., 1997). As time goes to infinity, the function goes to zero, so the temperature intercept indicates the predicted equilibrium temperature. Two different data segments were analyzed for deployment in Core 301-U1301C-9H, and they yield the same equilibrium temperature.
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