Integrated Evaluations of High-Quality Shale Play Using Core Experiments and Logging Interpretations

The integration of multi-technology and multi-scale evaluation techniques is quite important in the development of shale resources. To assess the high-quality shale in the West Duvernay Shale Basin, an integrated experimentlogging-based strategy is proposed. The investigation of core measurements and logging interpretations is first carried out to ascertain a geographic distribution of high-quality shales. The relationships between shale productivity and reservoir characteristics are then quantified, and the distribution of high-quality shales in space is predicted using machine learning techniques. The Duvernay shale is discovered to be separated into four sublayers, with the D2 and D3 sublayers being considered high-quality shales based on a comprehensive analysis. Shale thickness, effective porosity, a brittleness index, and formation pressure are found to be crucial factors that greatly influence the production of high-quality shale. This strategy can be used to evaluate high-quality shale comprehensively in other shale resources and achieve the effective development of unconventional shale resources.