Carbonate Rock Fabric—Petrophysical Classification

The goal of reservoir characterization is to describe the spatial distribution of petrophysical parameters, such as porosity, permeability, and saturation. Wireline logs, core analyses, production data, pressure-buildup data, and tracer tests provide quantitative measurements of petrophysical parameters in the vicinity of the well bore. Studies that relate rock fabric to pore-size distribution, and thus to petrophysical properties, are key to quantifying geologic models in numerical terms for input into computer simulators.

The purpose of this site is to identify important geologic parameters that can be described and mapped, useful for accurate petrophysical quantification of carbonate geologic models. This is accomplished by describing the relationship between carbonate rock fabrics and petrophysical properties, and by presenting a generic petrophysical classification of carbonate fabrics to petrophysical rock properties in carbonate rocks. For more detailed information see article entitled "Rock-Fabic/Petrophysical Classification of Carbonate Pore Space for Resevoir Characterizartion" by F. J. Lucia published in the September, 1995, issue of the AAPG Bulletin.

This site is divided into 4 paths with clickable icons shown below. These include 1) a rock fabric classification scheme for carbonates using interparticle pore space (IPS) criteria—along with petrophysical data and figures useful for distinguishing IPS classes, and 2) a rock fabric classification scheme for carbonates based on vuggy pore space (VPS)—along with petrophysical data and figures useful for distinguishing VPS classes.

 

pore space

data and classes
pore space classification

vps data