COOLING FOR GEOTHERMAL WELL DRILLING
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United States of America
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Issued Date -
Jan 30, 2025
app pub date -
Oct 17, 2024
filing date -
Oct 17, 2024
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Abstract
A method for drilling a geothermal well in a subterranean zone includes drilling, with a drill string, a wellbore of the geothermal well in the subterranean zone. An inherent temperature of the rock adjacent a rock face at a downhole end of the wellbore is at least 250 degrees Celsius. While drilling, a drilling fluid is flowed at a temperature at the rock face such that a difference between the inherent temperature of the rock adjacent the rock face and the temperature of the drilling fluid at the rock face is at least 100 degrees Celsius.
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