Geothermal gradient
Input(s)
\(T_{b h}\): Maximum Recorded Temperature \(\left(\right.\) degree \({ }^{\circ} \mathrm{F}\) )
\(T_{s}\): Temperature Near Surface \(\left(\right.\) degree \(\left.{ }^{\circ} \mathrm{F}\right)\)
\(D_{b h}\): Total Depth of Logged Borehole (ft)
Output(s)
\(g_{G}:\) Geothermal Gradient (degree \({ }^{\circ} \mathrm{F} / 100 \mathrm{ft}\) )
Formula(s)
\[
g_{G}=\left(\frac{T_{b h}-T_{s}}{D_{b h}}\right) * 100
\]
Reference(s)
Bassiouni, Z., 1994, Theory, Measurement, and Interpretation of Well Logs. SPE Textbook Series Vol. 4. Chapter 4, Page: 75.