Research Article
Prediction of Fracture Toughness in the Shale Formation Based on Well Logging and Seismic Data: A Case Study of the Lower Silurian Longmaxi Formation in the Sichuan Basin, China
Table 1
The relationships between fracture toughness and acoustic parameters of shale samples.
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Note: represents the mode I fracture toughness, simplified fracture toughness; represents the P-wave acoustic interval transit time; represents the S-wave acoustic interval transit time; represents the P-wave attenuation coefficient; represents the S-wave attenuation coefficient; represents the P-wave impedances; represents the S-wave impedances. |