Abstract：Wellbore instability is a common and difficult problem encountered in drilling. The key work is calculating accurately the in-situ stress，for it is different with the tectonic region and formation property. The measuring techniques of in-situ stress at depth are described by the local hydrofracturing method，acoustic emission Kaiser effect method and the means improving measurement accuracy by data process method. The in-situ stress calculation mode at foothill tectonic belt of different layers is established. At last，the real measurement result of in-situ stresses and region distributing regulation in Xinjiang are presented.
张守良1 邓金根1 徐显广2 李维轩2 查永进2. 油田地应力测量技术及中国西部地应力分布规律[J]. 岩石力学与工程学报, 2002, 21(S): 2134-2138.
Zhang Shouliang1， Deng Jingen1， Xu Xianguang2， Li Weixuan2， Zha Yongjin2. MEASUREMENT TECHNIQUE OF OILFIELD IN-SITU STRESS AND DISTRIBUTION REGULATION OF IN-SITU STRESSES IN WEST CHINA. , 2002, 21(S): 2134-2138.
2002, Vol. 21 
