MECHANISM OF FILTRATION PROCESSES IN THE ROCKS AT APPLYING HYDRAULIC SHOCK ON THE COLUMN OF LIQUID INJECTED INTO THE STRATUM

Details

Parent Category: Geo-Technical Mechanics, 2014

Category: Collection of scientific papers «Geotekhnicheskaya Mekhanika» Issue 114

UDC 622.234.5:32:532.595.2

Authors:

S.P. Mineev, D.Sc. (Tech.), Professor

(IGTM NAS of Urraine),

A.A. Potapenko, M.S. (Tech.)

("Donetsk Coal Energy Company")

Annotation.

 Mechanism of filtration processes in the rocks occurred at applying hydraulic shock on the stream of liquid injected into the coal layer is explained in this work. This mechanism can be used for improving liquid injection into the layer when the layer is in the process of hydraulic loosening. A model of this mechanism allows to determine conditions for loosening a face area of the layer and parameters for effective watering of the coal mass at implementation of measures against outburst. Dependence of porosity changes in the process of cyclic loading of the coal mass due to accumulated coal disturbances is presented. It is shown that coal porosity and permeability increase monotonically up to a certain size at increasing number of cycles of the shock loading, and average total flow of liquid injected into the coal mass increases with grown number of cycles of the shock loading.

Keywords:

 watering of the coal mass, measures against outburst, hydraulic shock, filtration process.

References:

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About the authors:

Mineev Sergei Pavlovich, D.Sc. (Tech.), Professor, Head of Department of Pressure Dinamic Control in Rocks of the N.S. Polyakov Institute of Geotechnical Mechanics NAS of Ukraine (IGTM NAS of Ukraine), This email address is being protected from spambots. You need JavaScript enabled to view it. .

Potapenko Alexander Alekseyevich, General Director of "Donetsk Coal Energy Company" (DUEK).

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