The Relation Study between Geochemical and Geomechanical Properties of Shale Formation: A comprehensive review

Abstract

Understanding the effects of geochemistry and mineral composition on geomechanical characteristics is critical in the design and optimization of hydraulic fracturing necessary for shale gas reservoir production. Fundamental information is still missing in experimental methodologies used to evaluate the influence of geochemical parameters and mineral composition on geomechanical properties of shale gas reserves. This paper provided an in-depth assessment of the various experimental methodologies and their applications in the relationship between the geomechanical and geochemical features of the Longmaxi shale formation. The limits of these methodologies were recognized, comparative analyses on experimental data and geomechanical parameters were performed, and recommendations for improved geomechanical assessments were provided. This review will contribute to fundamental understanding and will guide future experimentally-based geochemical and geomechanical investigations on shale gas reserves.