Сериальное издание: IOP Conference Series: Earth and Environmental Science. Geodynamics and stress state of the Earth's Interior, GSSEI 2019, (30 September - 4 October 2019)
Том: 773
, Год издания: 2021
Аннотация
A measuring system has been developed for a test bench allowing the study of gas-dynamic processes in large-sized rock samples when performing hydraulic fracturing of a coal seam in a borehole model. This system provides collection of the data on pressure in a hydraulic fracturing device and loading of pneumatic jacks which create compressive stresses in the borehole zone, it also records acoustic emission during crack formation. An additional capability is implemented to measure the flow rate of gas supplied to sample through the holes on its side wall and pumped from the borehole.
