Fig. 13
Interpretation and well correlation of the hydraulic active zones (HAZ). The upper reference level is Top Purbeck (magenta line). From left to right, depth in MD and TVD. In the third column, the auxiliary curves (bit size, calliper log) and underlined lithology. In the fourth column, raw data for the analysis of the HAZ: mud losses (0–10 m3 seepage green, 10-15 m3 partial blue, > 15 m.3 severe-to-total mud loss red), spinner revolutions and temperature of the flowmeter measurements. The fourth column includes the resulting amount of injected volume and highlights the interpreted HAZs (interpreted based on blue: RPS, green: mud loss, orange: temperature anomaly)