«Equipment and technologies for oil and gas complex»

To estimate the permeability of the coal seam

UDC: 622.453
DOI: 10.33285/1999-6934-2022-4(130)-75-81

Authors:

¹ Federal Research Centre of Coal and Coal Chemistry SB RAS, Kemerovo, Russia

Keywords: permeability of coal seams, methane of a coal mine, digital model, coefficient of gas permeability

Annotation:

Modern underground coal mining is characterized by the development of gas-bearing coal seams using high-performance mining equipment, the operational efficiency of which depends on mining and geological conditions and is often limited by the gas factor. The significant importance for increasing the volume and ensuring the safety of coal mining is the improvement of systems and means of coal seams degassing, the filtration properties increase of which depend on the application of hydrodynamic exposure methods. However, during the construction and operation of wells of reservoir degassing, their productivity may decrease due to changes in the filtration characteristics of the carboniferous massif. At the same time, the fundamental task is to develop a method that provides registration of hydrodynamic parameters of high-pressure fluid flows, the propagation of which in the fractured-pore space of a coal seam has a pulse character, with their subsequent interpretation for reliable determination of the filtration properties of coal seams and the development of measures aimed at improving them.

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