Fig. 9

Comparison of gradients estimated from Bottom Hole Temperature (BHT) data and CPD-based gradients. a–h in parentheses in lower left corners of the different panels correspond to zones depicted in Fig. 2. The blue line represents the BHT data based gradient estimations; the red line represents the CPD-based gradients. i, j represent the depth BHT gradient. Black lines correspond to linear adjustment of the gradient points