Finding the Drilling Induced Fractures and Borehole Breakout Directions Using Image Logs

Abstract

By interpreting image logs, both the directions of drilling induced fractures parallel to the maximum horizontal in-situ stress direction and borehole breakouts parallel to the minimum horizontal in-situ stress direction can be calculated. In this work, 10 wells located in Gachsaran field were selected then the direction of drilling induced fractures and borehole breakouts in these wells was examined by using image logs and other geological log interpretation. This work was done in order to have a better understanding of structural geology in this field and also explain the methodology by showing the selected log interpretation examples from this field.