Determination of Reservoir Rock Fracture Properties Using Wireline Logs

This fracture study focuses on the Asmari Formation of south-western Iran. The FMS (Schlumberger's Formation Micro Scanner) data were analyzed for dip azimuth, dip, height and quantity of the fractures. The fracture width was measured from the FMS images and flushed zone resistivity (Rxo) after which, fracture porosity was calculated. Fracture properties distributions were similar to those of published work. The evaluated fractures exist in sets and assemblages and the majority of them lay along the axis of the fold. Finally a fracture log was made, plotted versus open-hole logs and correlated to mud loss and PLT logs. The good correlation shows the contribution of fractures to oil recovery.