Method using gas extraction measurement data to analyze coal seam gas extraction rules

The invention provides a method using gas extraction measurement data to analyze coal seam gas extraction rules. The method includes the steps of firstly, acquiring drill site gas extraction scalar quantity data x and gas extraction time t; secondly, acquiring drill site hole length L, drill site co...

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Hauptverfasser: XU XUEZHAN, SUN DONGLING, HE YABO, TANG HANYING, LIU WENJIE, ZOU YUNLONG, ZHAO XUSHENG, ZHANG QINGHUA, YUE JUN, TAN MUGUANG, DENG GANBO
Format: Patent
Sprache:eng
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Zusammenfassung:The invention provides a method using gas extraction measurement data to analyze coal seam gas extraction rules. The method includes the steps of firstly, acquiring drill site gas extraction scalar quantity data x and gas extraction time t; secondly, acquiring drill site hole length L, drill site control area gas content W and drill site control area coal reserves M; thirdly, acquiring drill site control area gas extraction standard-reaching critical value W0; fourthly, building the function relationship between unit drilling ruler extraction quantity and extraction time; fifthly, analyzing the extraction quantity Q0 needed by drill site control area gas extraction standard reaching; sixthly, determining the drill site gas extraction rules, namely the time T0 and drilling ruler quantity L0 needed by drill site extraction standard reaching. The method has the advantages that the drill site gas extraction rules can be automatically determined according to drill site construction positon gas information and actual production conditions, and gas extraction design and standard reaching evaluation of regions similar to mines can be guided.