第一部分:岩石应力估算策略1引言国际岩石力学学会关于应力估算方法所给出的四个新建议主要包括以下四个部分:第一部分:岩石应力估算策略;第二部分:套芯应力解除法;第三部分:水压致裂法及原生裂隙水压测试法; Part I: Rock Stress Estimation Strategy 1 INTRODUCTION The four new recommendations given by the International Society for Rock Mechanics on stress estimation include the following four parts: Part 1: Rock Stress Estimation Strategy; Part 2: Casing Stress Relief Method; The third part: hydraulic fracturing method and primary fracture hydraulic pressure test method;