1. Interpreted ranges of effective fracture apertures.
Interpreted ranges of effective fracture apertures. Fractures (TS) represent fracture aperture ranges estimated from thin-section measurements. Joints reflect estimates of joint aperture ranges from manual estimates of borehole image logs corrected for fracture dip and borehole attitude. Veins (TS) represent widths of veins measured from thin section; and vein image logs represent vein widths estimated from FMI images. Note that veins are mineral-filled fractures and therefore do not contribute to reservoir porosity or permeability. The range of estimated fracture apertures is consistent with extremely high fracture permeability (Kair) and zero immobile water saturation (Sw) (Aguilera 1999).
A. Belaidi et al. Petroleum Geology Conference series 2018;8:
© 2018 The Author(s). Published by the Geological Society, London