【作者】 高红梅； 兰永伟； 赵继涛； 于秀娟； 马强；

【Author】 Gao Hongmei,Lan Yongwei,Zhao Jitao,Yu Xiujuan,Ma Qiang (Heilongjiang Science and Technology Science Institute,Ha’erbing 150027,China)

【机构】 黑龙江科技学院；

【摘要】 为了全面评价温度、应力对岩石渗透率的影响,本文在常规实验的基础上,就温度和应力耦合条件下对不同类型的岩样渗透率的影响规律进行了实验研究。研究结果表明:岩样在温度相对较低时,渗透率与应力近似呈指数关系变化,温度对岩样渗透率的影响不大;随温度和应力升高渗透率出现增长趋势,尤其在温度门槛值范围时,岩样渗透率出现了突变,此时温度对岩石渗透起决定性作用;该实验结果对地热开发有较高参考价值。更多还原

【Abstract】 Aimed at fully evaluating the temperature and effective stress on permeability of sandstone,based on the conventional experiments,this paper study the different types of rock permeability coefficient under the coupled conditions of temperature and stress.The experimental results show that the relation of the permeability and the effective stress of rock is the change of index,and the temperature has litde effect on the permeability of rock samples.The Permeability appears the growth with the temperature and stress increasing,and appears the mutation during the temperature threshold,the temperature played a decisive role on the rock permeability at this point.The experimental results provide a theoretical reference to study of geothermal exploration.更多还原