HYDRODYNAMIC IMPACT ON THE COAL SEAM USING THE REVERSE HYDROSTATIC EFFECT IN THE STAGE OF FREE FLOW OF WATER FROM AN UNDERGROUND FORMATION WELL

2018 ◽  
Vol 6 (32) ◽  
pp. 9-16
Author(s):  
S.V. Slastunov ◽  
◽  
E.V. Mazanik ◽  
A.A. Meshkov ◽  
I.A. Komissarov ◽  
...  
Keyword(s):  
Coal Seam ◽  
Free Flow ◽  
Hydrodynamic Impact

scholarly journals Numerical model of fracture formation in a coal seam

2021 ◽  
Vol 330 ◽  
pp. 04009
Author(s):  
Maxim Makeev ◽  
Sergei Sokolov ◽  
Anastasiya Kolmakova
Keyword(s):  
Rock Mass ◽  
Numerical Model ◽  
Coal Seam ◽  
System Development ◽  
Recovery Process ◽  
Fracture System ◽  
Mathematical Software ◽  
Hydrodynamic Impact ◽  
Software Packages ◽  
Fracture Formation

The article discusses the recovery process of fracture system formation after hydraulic fracturing in a coal seam, based on the conducted seismic studies using modern mathematical software packages. Model concepts of the fractures system development under hydrodynamic impact on a rock mass are considered, which make it possible to assess the nature of fractures propagation.

scholarly journals Seismic monitoring of hydrodynamic impact on coal seam at interval hydraulic fracturing

2019 ◽  
Vol 377 ◽  
pp. 012034 ◽  
Author(s):  
V I Klishin ◽  
O V Taylakov ◽  
G Yu Opruk ◽  
M P Makeev ◽  
S V Sokolov ◽  
...  
Keyword(s):  
Coal Seam ◽  
Hydraulic Fracturing ◽  
Seismic Monitoring ◽  
Hydrodynamic Impact ◽  
Interval Hydraulic Fracturing

scholarly journals Hydrodynamic impact on coal mass before crossing the most outburst-prone coal seams

2019 ◽  
Vol 109 ◽  
pp. 00112
Author(s):  
Vasyl Vlasenko ◽  
Dmytro Zhytlonok
Keyword(s):  
Coal Seam ◽  
Experimental Studies ◽  
Coal Mass ◽  
State Enterprise ◽  
Coal Seams ◽  
Dynamic Activity ◽  
Hydrodynamic Impact ◽  
Gas Dynamic ◽  
Mine Workings ◽  
Hydrodynamic Effects

The results of experimental studies of hydrodynamic effects (HDI) in industrial conditions are given. The HDI is designed to reduce the gas-dynamic activity of the coal seam and the rocks surrounding it. HDI was applied to the coal seam before it crossed the mine workings. The conditions for the implementation of HDI in industrial conditions Separate Enterprise “Mine “Tsentralna” State Enterprise “Toretskvuhillia” are described. The results of HDI on coal seams m2 -“Tonkyi” and m3 -“Tovstyi” are given. The parameters of the HDI method for outburst-prone coal seam before its crossing by mine workings are corrected.

On the Possibility of Coalbed Methane Extraction as a Source of Energy under the Hydrodynamic Impact on the Outburst Coal Seam

2017 ◽  
Vol 25 ◽  
pp. 106-112 ◽  
Author(s):  
Ruslan Agaiev ◽  
Vasyl Vlasenko ◽  
Kateryna Dudlia ◽  
Maryna Kyrychenko ◽  
Dmytro Prytula
Keyword(s):  
Coal Seam ◽  
Coalbed Methane ◽  
Gas Extraction ◽  
Cogeneration Plant ◽  
Emergency Protection ◽  
Hydrodynamic Impact ◽  
Coal Mine Methane ◽  
Free Process ◽  
Coal Deposits ◽  
Outburst Coal Seam

In this article the possibility of methane gas extraction in coal deposits exploitation is considered. Experimental data on the application of hydrodynamic impact on a gas-saturated outburst coal seam prior to its baring in order to reduce gasdynamic activity due to an intensification of methane emission are presented. Also a structural and technological scheme of degassing pipelines that includes emergency protection and monitoring of coal mine methane parameters in real-time mode to ensure a safe, trouble-free process of its transportation to the cogeneration plant for further utilization is proposed.

scholarly journals Mathematical model of the cracking process in the coal-rock massif under hydrodynamic impact

2019 ◽  
Vol 109 ◽  
pp. 00111
Author(s):  
Vasyl Vlasenko ◽  
Kateryna Dudlia ◽  
Maryna Kyrychenko
Keyword(s):  
Mathematical Model ◽  
Coal Seam ◽  
Rock Massif ◽  
Inverse Filtering ◽  
Fluid Filtration ◽  
Hydrodynamic Impact ◽  
Coal Rock ◽  
Cracking Process ◽  
Power And Energy ◽  
The Mathematical Model

The physics of hydrodynamic impact (HDI) is in the softening of the coal seam due to the generation of alternation stress in it. Stress is carried out due to injection and discharge of fluid into the coal seam in the filtration mode. The mathematical model of the processes occurring in the coal massif under HDI was developed. The model allows to determine the nature of the coal destruction in forward and inverse filtering of fluid in the massif. Cracking in the process of fluid filtration is achieved while simultaneously fulfilling two criteria: power and energy.

The free flow of ideas, information and materials

2000 ◽  
Vol 24 (6) ◽  
pp. iii-iii
Author(s):  
Natasha V. Raikhel ◽  
Mikio Nishimura ◽  
Ralph S. Quatrano ◽  
Stephen H. Howell ◽  
William Davies ◽  
...  
Keyword(s):  
Free Flow

Purification of plasma membranes from leaves of conifer and deciduous tree species by phase partitioning and free-flow electrophoresis

1995 ◽  
Vol 95 (3) ◽  
pp. 399-408 ◽  
Author(s):  
Elena Toll ◽  
Federico J. Castillo ◽  
Pierre Crespi ◽  
Michele Crevecoeur ◽  
Hubert Greppin
Keyword(s):  
Tree Species ◽  
Plasma Membranes ◽  
Free Flow ◽  
Deciduous Tree ◽  
Phase Partitioning

Eine Plasmaextraktion durch Free-Flow-Elektrophorese ermöglicht die selektive Bestimmung von Insulinanaloga in Gegenwart von endogenem Normalinsulin

2008 ◽  
Vol 3 (S 1) ◽  
Author(s):  
A Pfützner ◽  
M Safinowski ◽  
M Nissum ◽  
U Sukop ◽  
G Weber ◽  
...  
Keyword(s):  
Free Flow

Effect of hydrodynamic impact and cavitation on oil flow characteristics

2019 ◽  
pp. 46-50
Author(s):  
V.N. Petrov ◽  
◽  
F.M. Galimov ◽  
L.A. Akhmetzyanova ◽  
S.V. Petrov ◽  
...  
Keyword(s):  
Flow Characteristics ◽  
Hydrodynamic Impact ◽  
Oil Flow
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