This article summarises the early results of a research project carried out over the past 4 years.The principle objective of the project,was to compare special core analysis measurements with parameters derived from the processing of back scattered electron images.The data base consists of 82 samples from 9 wells.Each sample has Φ,K_(ain)FRF and pore measurements acquired from 1066 image fields,(13lsample).We found the linear equation using pore area,(image porosity),predicts permeability with a Standard Error of the Mean,(σ),of 0.284 log,,permeability units.Using a pore length squared,in addition to pore area,predicts permeability having σ = 0.266 loglo permeability units.For reference,core analysis porosity predicts permeability having o = 0.637 loglo permeability units.Following success with the prediction of permeability,the research focused on another simple flow-related property,Formation Resistivity Factor.It was found that the reciprocal of image porosity produced an acceptable estimator for a large proportion of the data set.It has been concluded therefore,that image porosity is probably a measure of the samples effective porosity rather than the total porosity.The conclusion,therefore,is that the analysis of back scattered electron images produces both a diagnostic tool for evaluating differences in the rock properties from a reservoir sequence,and a method to calculate rock properties in the absence of more traditional data.
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