Imaging and Computing the Physical Properties of Gas Shale (original) (raw)

2010

Abstract

Summary Managing uncertainties is vital for the economic assessment of exploration, appraisal and development of a field. A key factor resides in the integration of data at different scales. This paper will focus on an integrated DRP (Digital Rock Physics) workflow from pore to core using multi-scale x-ray CT imaging. In gas shale, understanding of the internal pore architecture down to 3 nanometer scale is crucial for accurately determining porosity, pore connectivity, total organic content (TOC) and it’s connectivity, and permeability. Different resolutions are used on gas shale samples, from macro, micro and nano scale to the newly developed FIB -SEM resolution. The volumes obtained from macro-CT scanning used on one-meter core sections, constitutes the link between properties computed on very small samples (10 microns/diameter) and the log data.

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