A method to remove gas hazard around underground thrust faults: Kilometre directional feathery drilling

Autor:	Hong Li, Tongqiang Xia, Hong-Yun Ren, Chang-Kang Du
Rok vydání:	2019
Předmět:	Renewable Energy Sustainability and the Environment lcsh:Mechanical engineering and machinery kilometre directional drilling Drilling Hazard gas hazard feathery boreholes Mining engineering gas extraction Kilometer thrust fault lcsh:TJ1-1570 Thrust fault Geology
Zdroj:	Thermal Science, Vol 23, Iss 6 Part B, Pp 3767-3774 (2019)
ISSN:	2334-7163 0354-9836
Popis:	In this paper, we take the W2303 working face in Sihe mine, Shanxi Province, China as a project case, where it has been met with three thrust faults. The occurrence regularity of coal gas near the faults are studied, and the gas content around the faults are measured. The comprehensive measures of gas extraction are carried out, including the wear layer and in-seam kilometer directional feathery drilling combined with multi-branch technique. The gas threat around underground thrust faults is effectively eliminated. This technical engineering practice has a good guiding significance to other similar mining areas.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::54b24b15e6ef0b002fb5e200db351e8d https://doi.org/10.2298/tsci180607262x Zobrazit plný text záznamu Plný text ve formátu PDF