致密储层岩石的微观结构和力学性质试验分析

摘要

Under the condition of simulated formation, the mechanical parameters of tight sandstones, taken from certain middle Sichuan gasfield and Sulige gasfield, are measured by a static （dynamical） triaxial rock mechanics test system, RTR- 1000 model,which was manufactured by the American GCTS corporation, to obtain the elastic modules, Poisson＇ s ratio and compressive strength. Using analysis of microscopic fabric of rocks, and combining with rock mechanical testes, the factors, influencing the mechanical characters of rocks, are discussed, to provide some basic parameters for the study of rock mechanical properties of similar reservoirs.%以致密砂岩为研究对象，利用美国GCTS公司研制的RTR-1000型静（动）三轴岩石力学测试系统对川中某气田和苏里格气田储层致密砂岩进行了模拟地层条件的岩石力学性质测试，获得了致密砂岩在储层条件下的弹性模量、泊松比和抗压强度等岩石力学参数。采用岩石显微组构分析和岩石力学试验相结合的方法，探讨影响岩石力学性质的因素，为该类型储层条件下岩石力学性质的研究提供了一些基本参数。