Bezruchko K. А.,Tikhonov O. A.,Pereverzev V.N. Test-industrial method verification of outrunning degassing of roof rock at the mine «stepnaya»
- Details
- Parent Category: Geo-Technical Mechanics, 2015
- Category: Geo-Technical Mechanics, 2015, Issue 125
Geoteh. meh. 2015, 125, 146-158
TEST-INDUSTRIAL METHOD VERIFICATION OF OUTRUNNING DEGASSING OF ROOF ROCK AT THE MINE «STEPNAYA»
1Bezruchko K. А., 1Tikhonov O. A., 1Pereverzev V.N.
1IGTM NAS of Ukraine
UDC 622.4.332:023.623
Abstract. In order to further implementation the outrunning degassing method of rock roof it was carried out its test-industrial verification at mines of Western Donbas. As the object of research, sections number 165 and 167 of longwall at mine "Stepnaya" PJSC "DTEK Pavlogradugol", where the depth of coal-extraction works is more than 400 m. Outrunning degassing is one of preliminary degassing subspecies of roof rock that runs from the section preparatory mine workings during the sector preparation or in the process of longwall operation, but not in its influence area, and directs on methane extraction from gas-bearing rocks of unmined ground by wells that were drilled in the areas of most rocks deflection with improved collector properties due to softening and formation of cracks. The essence of the method is in the zone pecularities usage of the largest rocks deflection formed as a result of geomechanical processes that occur at the border of unmined ground and undermined thick. The zone of maximum rocks deflection is limited by a zone of active rock displacement from the side of rock falls and zone of bearing pressure - from undermined massive. The studies involved a preliminary gathering of geological and technological information at the mine, analysis of obtained materials, prediction of gas-emission rate of the roof rocks of 167 longwall and geological object determination of outrunning degassing, drilling parameters development of wells in 165 longwall conditions, gas-dynamic parameters analysis of wells, adjustment of drilling parameters and, finally, wells effectiveness determination of outrunning degassing.
Keywords: Keywords: outrunning degassing, wells, gas-dynamic parameters, geological object, prediction calculation, efficiency.
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About the authors:
Bezruchko Konstantin Andreyevich, Doctor of Geological Sciences (D.Sc), Senior Researcher, Department of Geology of Coal Beds at Great Depths, M.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Science of Ukraine (IGTM, NASU), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.
Tikhonov Alexey Anatoliyevich, Master of Science, Junior Research in the Department of Geology of Coal Beds at Great Depths, M.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Science of Ukraine (IGTM, NASU), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.
Pereverzev Viktor Nikolaevich, Master of Science, Principal Engineer in the Department of Geology of Coal Beds at Great Depths, M.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Science of Ukraine (IGTM, NASU), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.