Reconstructing digital core that can fully characterize the multiscale pore(fracture)and matrix structure of the rock is one of the most advancing front issue in the field of unconventional oil and gas research,and is also an important foundation for shale oil and gas exploration and develop-ment.This article comprehensively analyzes the research progress in characterizing organic pore clusters,multiscale pore(fracture)structures,and representative element volumes(REV)of shale.Based on the analysis of the structural characteristics of marine shale in the Sichuan Basin,a new method for fully characterizing its multiscsal pore(fracture)structure has been proposed.On this basis,the digital cores are applied to the impact of multiscale pore(fracture)structures on acoustic properties and the gas content evaluation,and provides new technical methods for shale reservoir eval-uation and sweet spots prediction.
关键词
多尺度多组分数字岩心/oREV/lREV/数字-实验岩心/含气量评估
Key words
multiscale and multicomponent digital core/oREV/lREV/digital-experimental core/shale reservoir evaluation
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