Multi-field, multi-phase seepage experimental device for rock under disturbance

Abstract

The invention discloses a multi-field, multi-phase seepage experimental device for rock under disturbance. The experimental device comprises an axial compression loading system, a confining pressure loading system, a disturbance system, a fluid loading channel, a gas loading channel, and a gas-liquid separation and collection system. The axial compression loading system is used for applying an axial compression to a rock test piece. The confining pressure loading system is used for applying a confining pressure to the rock test piece. The disturbance system is used for providing different amplitude and different frequency disturbance for the rock test piece. The fluid loading channel is used for injecting liquid into the rock test piece. The gas loading channel is used for injecting gas into the rock test piece. The gas-liquid separation and collection system is used for separating and collecting the gas and the liquid passing through the rock test piece. According to the multi-field,multi-phase seepage experimental device for the rock under the disturbance, a pump is dual-purpose, so that the resources are saved, meanwhile, a deformation disturbance rod is added inside a conventional pressure chamber, transverse disturbance is achieved through a vibration exciter, and the disturbance effects of the rock and the influence of the multi-phase fluids on the rock permeability canbe simulate realistically in the actual engineering. The correlation coefficient and the permeability evolution law of the rock in the actual engineering can be obtained more accurately by controllingthe confining pressure and the osmotic pressure.

Description

technical field [0001] The invention belongs to the technical field of rock seepage mechanics test equipment, in particular to a rock multi-field and multi-phase seepage test device under disturbance. Background technique [0002] With the continuous development of the economy, whether it is the development of the country or people's daily life, the demand for energy is increasing. At present, the mining of underground resources has gradually developed to the deep. Compared with shallow mining, the geological conditions of deep mining are ever-changing. The movement laws of groundwater and other miscible or immiscible fluids in rocks are also intricate. At the same time, due to the influence of disturbances in the mining process such as blasting, mechanical mining power disturbances, high-energy rockbursts and mine shocks, and local fractures, the relevant parameters and laws obtained through traditional multi-field and multi-phase seepage experiments have been difficult to ...

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Problems solved by technology

At the same time, in oil, natural gas, CO 2 In the process of storage and deep burial of nuclear waste, if the influence of multi-field and multi-phase seepage is not fully considered, effective construction methods and safety measures cannot be adopted, which will lead to unnecessary waste of resources, environmental pollution and life safety, etc. question

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