Efficiency of improved underground hydraulic fracturing in coalbed degassing

Slastunov, S.V.; Yutyaev, E.P.; Mazanik, E.V.; Ermak, G. P.

doi:10.17580/gzh.2018.01.15

Cited by 2 publications

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“…This was confirmed by successful practices in the extraction blocks 2458, 2459 and 2460 at Kirova mine. (Slastunov at al. 2018;Slastunov at al.…”

Section: Discussionmentioning

confidence: 99%

Improvement of intensive in-seam gas drainage technology at Kirova mine in Kuznetsk coal basin.

Slastunov¹,

Kolikov²,

Batugin³

et al. 2020

Preprint

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The Kirova mine with its 3 Mt production in 2019 is one of the coal mining leaders in Russia. The available mining equipment has the potential to significantly increase the output, however, gas is a limiting factor on the way to this. The customary approaches to coal seam degassing have already been petered out. The miners and mine science are facing a challenge to validate and test an alternative technology to ensure effective in-seam gas drainage prior to vigorous mining. This article gives an account of the improvement track record of the in-seam gas drainage technology used to pre-treat coal seam for intensive and safe extraction. This technology suggests, at the first stage, hydraulic slotting of the target coal seam through wells drilled from the surface (SHS), then hydraulic fracturing of the coal seam through the boreholes drilled from underground development headings, followed by methane extraction from the created high-permeability coal-gas reservoir through standard in-seam gas dranage underground wells. Presented in this paper are the results of field testing of improved SHS technique. Findings are presented on the effective parameters of the hydraulic fracturing technology. Methodological recommendations are offered for selecting viable in-seam gas drainage technology.

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“…This was confirmed by successful practices in the extraction blocks 2458, 2459 and 2460 at Kirova mine. (Slastunov at al. 2018;Slastunov at al.…”

Section: Discussionmentioning

confidence: 99%

Improvement of intensive in-seam gas drainage technology at Kirova mine in Kuznetsk coal basin.

Slastunov¹,

Kolikov²,

Batugin³

et al. 2020

Preprint

View full text Add to dashboard Cite

show abstract

“…Experimental work has been carried out on testing and approving auto-pneumatic impact method to justify the recommendation to use this technique to boost gas drainage in the production area 24-55. The essence of this method is described in [17].…”

Section: In-situ Experimentsmentioning

confidence: 99%

“…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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Efficiency of improved underground hydraulic fracturing in coalbed degassing

Cited by 2 publications

References 0 publications

Improvement of intensive in-seam gas drainage technology at Kirova mine in Kuznetsk coal basin.

Improvement of intensive in-seam gas drainage technology at Kirova mine in Kuznetsk coal basin.

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

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