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The West Virginia Thermal Anomaly - West Virginia Department of ...

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BHT Corrections<br />

• Correction for thermal<br />

effects caused by drilling<br />

Harrison Correction<br />

• Circulation <strong>of</strong> drilling mud<br />

generally cools the<br />

borehole<br />

– At shallower depths<br />

borehole may be heated<br />

• BHTs normally recorded a<br />

short time after mud<br />

circulation is completed

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