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Empirical equation estimates geothermal gradients. I.M. Kutasov. OGJ, 2 January 1995, 93(1), 48, 49.

An empirical equation is reported which predicts geothermal temperature profiles from downhole and surface circulating temperatures. These gradients are useful for cement slurry and mud design for improving electrical and temperate log interpretation. Downhole circulating temperature logs and surface outlet temperatures are used for predicting the geothermal gradients. Examples are presented. 6 refs.

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