The aim of this sutdy is to research the time dependence of deformations under complex stress conditions arising in the ground formation during the exploitation of oil and gas fields. The experiments were carried out on the IP Mech triaxial independent loading test system on the rocks of the Prirazlomnoye oil field using loading programs simulating the stress state in the near-borehole region with a decrease in pressure in the well. Experimental dependences of deformations on time during step loading are presented. The basic requirements for constructing a model of a stress-strain state taking into account the influence of time effects are discussed.

中文翻译：

---

真三轴载荷下岩石蠕变的试验研究

该研究的目的是研究油气田开采过程中地层中复杂应力条件下变形的时间依赖性。实验是在IP Mech三轴独立加载测试系统上对Prirazlomnoye油田的岩石进行的，使用加载程序模拟井眼附近压力降低的近钻孔区域的应力状态。提出了阶段加载过程中变形对时间的实验依赖性。讨论了构建考虑时间效应影响的应力应变状态模型的基本要求。