Figure 14
From: New prediction method of horizontal principal stress of deep tight reservoirs

Imaging logging of pressure fracture in well J-37 and well J-21. (a) Pressure fracture in well J-37, 3033-3037 m, with fracture strike NE152°. (b) Pressure fracture in well J-21, 3011-3015 m, with fracture strike NE148°.