Fine Detection and Analysis of Hidden Karst in Wellsite with Quasi-Three-Dimensional TDEM Based on Lateral Constraint

Figure 10

Evaluation map of TDEM quasi-three-dimensional resistivity inversion results in well QM2, in which low-resistivity anomalies are marked with blue lines. (a) Horizontal section at 800 m altitude; (b) stratigraphic slice at the bottom of Jialingjiang formation is 10 m upward; (c) three-dimensional display of low resistance anomaly characteristics of Jialingjiang Formation; (d) line 200 TDEM inversion profile; (e) line 300 TDEM inversion profile; (f) line 400 TDEM inversion profile.

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