In situ thermal conductivity and equilibrium formation temperature from circulation flow rate variations |
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| Authors: | H Pascal R D W Beach F W Jones |
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| Institution: | (1) Department of Physics and Institute of Earth and Planetary Physics, University of Alberta, T6G 2Jl Edmonton, Alberta, Canada |
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| Abstract: | A temperature-transient method to estimatein situ formation thermal conductivity and equilibrium formation temperature using circulation fluid flow-rate pulses is described. Flow-rate changes induce temperature variations in the well and the time from when the flow alters to the subsequent maximum or minimum temperature of the drilling fluid can be used to determine these two formation parameters. Some examples are presented to illustrate the method. |
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| Keywords: | Thermal conductivity transient heat transfer borehole temperature logging |
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