基于屈服强度理论的深埋砂岩可注性研究  

Study on Deeply Buried Sandstone Water Injectability Based on Yield Strength Theory

作　　者：杨光辉[1] 朱开成 晏嘉 Yang Guanghui;Zhu Kaicheng;Yan Jia(China National Administration of Coal Geology,Beijing 100038;Exploration and Research Institute,CNACG,Beijing 100039)

机构地区：[1]中国煤炭地质总局,北京100038 [2]中国煤炭地质总局勘查研究总院,北京100039

出　　处：《中国煤炭地质》2020年第8期62-66,共5页Coal Geology of China

摘　　要：在合理假设注水目的地层存在塑形变形的围岩应力条件下,应用岩石屈服强度理论和工程实验数据,论证了深埋砂岩的可注性。初步阐述了砂岩透水性、储水空间在高应力、高水压条件的发生和变化机理。提出了初始劈裂压力和最小维持注水压力的概念和取值依据,为类似深埋砂岩矿井水回注工程提供了基础设计参数。Under the rational assumption of target strata have exist plastic deformed country rock stress condition,applied rock yield strength theory and engineering experimental data,demonstrated deeply buried sandstone water injectability;initially expounded sandstone water permeability,water storage space generation and variation mechanism under high stress and high water pressure conditions.The paper has put forward initial splitting pressure and minimum water injection maintenance pressure concepts and value estimation basis,thus provided basic design parameters for similar deeply buried sandstone mine water reinjection projects.

关 键 词：屈服强度 注水压力 渗透性 可注性 

分 类 号：P641.2[天文地球—地质矿产勘探]