Interpretation of Mercury Injection Experiments Using a Minimum Set of Porous Descriptors Derived by Quantitative Image Analysis

Abstract

The porosity exposed in a series of petrographic thin sections from a sub-arkosic sandstone reservoir of the Alwyn area (North Sea) is described by 5 morphological porous descriptors, Pore-Types, obtained by quantitative image analysis procedures and pattern recognition algorithms developed by Ehrlich et al. (1991a). By combining Pore-Type data with capillary pressure curves, we obtain preliminary results showing that in the studied reservoir, the achieved Pore-Types relate better to petrophysics when they are complemented with a sedimentological information.

Linear Unmixing in the Geologic Sciences: More Than A Half-Century of Progress

“…The HVA family of algorithms is critical for the field of PIA (Petrographic Image Analysis). The literature includes Ehrlich and Horkowitz (1984), Ehrlich et al (1984Ehrlich et al ( , 1991aEhrlich et al ( , b, 1996Ehrlich et al ( , 1997, Ross et al (1986), Scheffe and Full (1986), Full (1987), Etris et al (1988), McCreesh et al (1991), Ross and Ehrlich (1991), Ferm et al (1993), Bowers et al (1994Bowers et al ( , 1995, James (1995), Carr et al (1996), Yannick et al (1996), Anguy et al (1999Anguy et al ( , 2002 and Sophie et al (1999).…”