Fractal characteristics of pore networks and sealing capacity of Ordovician carbonate cap rocks: A case study based on outcrop analogues from the Tarim Basin, China

Abstract

structure types not only show good correlations (either exponential or linear) with certain fractal dimensions, but they also demonstrate a strong positive correlation with the average fractal dimension.These results suggest that the sealing capacity of the studied rocks increases with increasing fractal dimension.The sealing performance of cap rocks significantly decreases with increasing the amount of macropores.This work provides a relevant case study for further understanding of pore structures and sealing capacity of carbonate cap rocks.