Fracturing index-based brittleness prediction from geophysical logging data: application to Longmaxi shale

Understanding of brittle and ductile behavior in low permeability shale formation is essential for optimizing the completion and stimulation treatment in a shale play. For the quantification of brittleness in shale, several methods for estimating fracability index have been proposed in the literature. However, uncertainties still exist in the interpretation of fracability to decide where to place perforation clusters, what magnitude of...