Integrating Core Data and Wireline Geochemical Data for Shale-Gas-Reservoir Formation Evaluation and Characterization

摘要

When core data are available from a large multiwell database, it is possible to extract meaningful statistical relationships between those data. These relationships then can be applied to other wells that have limited or no core data. X-ray-diffraction (XRD) min-eralogical data can be transformed to synthetic wireline-geochemical-elemental data. This transformation establishes a relationship between the mineralogical data and the synthetic wireline-geochemical data that can be applied to real wireline-geochemical data to select an appropriate set of minerals for use in making calculations from the wireline-geochemical data. A workflow was developed to provide an effective approach for calculating mineralogy, grain density, and porosity from wireline-geochemical data.