Abstract
A mathematical model and results of calculation of a nonstationary thermal field in the process of drilling a well in rocks having different thermophysical properties, with a laminar mode of flow of the drilling mud, are considered. The distributions of temperature over the well bore in different drilling regimes are given. It is shown that when the drilling is stopped, the temperature anomalies in the well are preserved for 24–48 h in the intervals of alive beds.
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