水压致裂法地应力测试结果分析

Analysis of Geostress Test Resultsby Hydraulic Fracturing Method

介绍了水压致裂法的主要设备及测试步骤,明确了水压致裂法的基本原理与方法,通过某矿区地应力实测数据得到钻孔横截面上大、小主应力值,大主应力倾角以及大主应力方位角,表明了实测范围内地应力以构造应力为主,并非随深度呈线性增加趋势且测段出现应力场突变特征。

The main equipment and test procedure of hydraul ic fracturing method are introduced,and the basic p r in c ip le and method of hydraulic fracturing method are defined . The large and small principal stress values of the cross section of the borehole, large principal stress dip angle and large p r in c ip a l stress azimuth angle are obtained through the measured data of the in - situ stress in a mining area . It shows that the stress in the measured area is mainly tectonic stress,not l inearly increasing with d e p th, and the stress field is abrupt in the test section.