Evaluation on methods of predicting in-situ stresses by using borehole breakout

Several types of methods about predicting in-situ stress using borehole breakout are introduced in this paper,and then compared with each other.Using borehole breakout to predict in-situ stress is related to the scale of breakout,viz the depth and span of borehole breakout.As a result of borehole breakout is continuous,the first breakout depth is hard to measure,the methods using breakout depth as the main parameter are unsuitable to apply.The...