Given herein is how to determine the direction of formation stress, effective fractures and its strike according to BCR data from DSI (Dipole Shear Sonic Imager).

• 给出了利用斯伦贝谢公司偶极横波成像 (DSI)的BCR资料来确定地应力方向和识别有效裂缝及其走向的实例。