Breakdown fluid injection modes in underground hydraulic fracturing

Slastunov, S.V.; Mazanik, E.V.; Meshkov, A.A.; Komissarov, I.A.

doi:10.25018/0236-1493-2018-10-0-110-117

Cited by 3 publications

(1 citation statement)

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“…The technology of hydrodynamic impact with underground hydraulic fracturing (UHF) of the coal seam to be drained is an auxiliary degassing scheme and is protected by patent [18]. It was tested in panel 24-58 (12 wells UHF) [19][20][21], it facilitated 3 to 4-fold growth of methane yield from in-seam gas drainage wells drilled in the hydrofracture zones, which https://doi.org/10.1051/e3sconf/201910501032 IV th International Innovative Mining Symposium resulted in significant improvement in terms of gas content in the longwall and allowed to raise face output.…”

Section: In-situ Experimentsmentioning

confidence: 99%

Methodology for the Selection of In-Seam Gas Drainage System for Intensive and Safe Coal Mining Synops

et al. 2019

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The article reviews general principles of selecting efficient solutions of in-seam gas drainage and provides analytical foundation for selecting parameters of in-seam gas drainage with due account for estimated output of production face. The schemes of degassing preparation at the production facilities of Kuzbass are presented. Recommendations are provided on the selection of in-seam gas drainage methods at the production areas of Kirova Mine, JSC SUEK-Kuzbass.

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Section: In-situ Experimentsmentioning

confidence: 99%

Methodology for the Selection of In-Seam Gas Drainage System for Intensive and Safe Coal Mining Synops

et al. 2019

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Designing In-Seam Gas Drainage Technology Based on Hydrodynamic Approach

Ponizov¹

2020

IOP Conf. Ser.: Earth Environ. Sci.

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The article presents science based technological solutions that are essential for the development of the country’s coal mining industry in terms of ensuring safety and efficiency of underground coal mining on the basis of improving in-seam gas drainage technologies using hydrodynamic impact on coal seams. Experimental work on the in-situ testing and approval of the new holistic technology was successfully done in the production panels 24-58, 24-58, 24-60 and 24-62 at the Kirova mine. That included underground hydrofracture of the working seam carried out from the development headings. High effectiveness of the proposed in-seam gas drainage technology was confirmed by effective methane extraction from the working coal seam, reduction of gas content in longwall faces and significant cut-down of equipment nonproductive time in areas covered by active in-seam gas drainage.

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Hydro-splitting of coal seams for their effective degassing preparation through underground wells

Slastunov

Ponizov²,

Sadov³

et al. 2020

Gorn. inf.-anal. bull.

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The article is devoted to the issues of improving the complex technology of coal seam degassing based on its hydrodynamic treatment. The possible modes of implementation of the introduction of working fluid into the coal seam in the process of its injection through wells drilled from preparatory workings and specially sealed to a certain depth, which ensures minimization of breaks of working fluid into the mine. Studies have been carried out to optimize the main parameters of hydrodynamic effects. Rational values of the effective well length and injection volume are established. The expediency of achieving significant rates of injection of the working agent into the formation for the disclosure of natural systems of cracks in it is shown. The directions of increasing the efficiency of formation degassing are investigated. The effectiveness of the integrated reservoir degassing technology was evaluated based on the factors of increasing methane production from underground reservoir degassing wells drilled into the zone of influence of underground hydraulic fracturing wells, and the total methane removal over the entire period of reservoir degassing. The efficiency of improved technology of hydraulic fracturing in underground mining for factors reducing downtime pollution control equipment, gazoobilnosti stope and the productivity of coal mining in zones of intensive integrated reservoir degassing.

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Breakdown fluid injection modes in underground hydraulic fracturing

Cited by 3 publications

References 0 publications

Methodology for the Selection of In-Seam Gas Drainage System for Intensive and Safe Coal Mining Synops

Methodology for the Selection of In-Seam Gas Drainage System for Intensive and Safe Coal Mining Synops

Designing In-Seam Gas Drainage Technology Based on Hydrodynamic Approach

Hydro-splitting of coal seams for their effective degassing preparation through underground wells

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