Abstract：The influence of stratum of Sichuan region on oil-well casing shows that casing of deep well suffers from overload and is damaged in short time as creep and flow of salt rock，such as well Guangshen 1 and well Zuo 3. Their economical loss is very serious. Therefore，the study on creep rule of salt rock stratum is an important base work. For this reason，an ordinary triaxial stress test device with controlled temperature and pressure is developed. The project includes a set of ordinary triaxial creep experiments for salt rock. The creep characteristic curves and parameters are gotten. The constitutive model of salt rock material is fitted out. Those provide some scientific basis for casing strength design. Then，the effect of mechanical behavior of sale rock stratum on casing is analyzed by finite element method. The relation between creep load of casing and some important parameters is given，which include depth of well，in-situ stress and uniformity coefficient of in-situ stress. These consequences are of significance to practice.
刘绘新 张 鹏 盖 峰. 四川地区盐岩蠕变规律研究*[J]. 岩石力学与工程学报, 2002, 21(09): 1290-1294.
Liu Huixin 1， Zhang Peng 1， Gai Feng 2. STUDY ON CREEP RULE OF SALT ROCK IN SICHUAN REGION. , 2002, 21(09): 1290-1294.
2002, Vol. 21 
