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Downhole Temperature Profile Calculator
Estimate downhole temperature at any depth using geothermal gradient. Calculate circulating temperature for equipment selection, cement design, and completion planning.
Inputs
Circulating temp ≈ 85% of static BHT
Leave 0 to auto-calculate
Results
Static Temp at Depth
--
°F
Circulating Temp
--
°F
Geo Gradient
--
°F/100ft
Static Temp (°C)
--
°C
Equations
Geothermal gradient: G = (BHT - T_surface) / TVD × 100
Static temperature at depth: T(d) = T_surface + G × d / 100
Circulating temperature: T_circ ≈ 0.85 × T_static (approximate — depends on flow rate, mud properties)
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