Refined pre-evaluation method for extraction effect of gas pre-extraction working face

The invention relates to a refined pre-evaluation method for the extraction effect of a gas pre-extraction working face, and belongs to the technical field of gas prevention and control. The method comprises the following steps that S1, all gas pre-extraction drill holes of a gas pre-extraction work...

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Bibliographische Detailangaben
Hauptverfasser:	SHEN KAI, ZHANG ZHIGANG, XIONG WEI, LIN FEI, CHENG BO, LIAO YIN, YANG SEN, BA QUANBIN, FAN ZHENGXING, HAO GUANGSHENG, SHI, ROBERT, YONGTAO, LIU YANBAO, MA DAIHUI, DAI LINCHAO, WANG SONG, MA QIANQIAN, SUN PENG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CALCULATING COMPUTING COUNTING DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING ELECTRIC DIGITAL DATA PROCESSING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PHYSICS SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR
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Beschreibung
Zusammenfassung:	The invention relates to a refined pre-evaluation method for the extraction effect of a gas pre-extraction working face, and belongs to the technical field of gas prevention and control. The method comprises the following steps that S1, all gas pre-extraction drill holes of a gas pre-extraction working face or an extraction evaluation unit are divided into extraction drill sites, and extraction pipelines are connected into the extraction drill sites in parallel; s2, the initial flow of extracted gas of the extraction drill site is measured, and the flow of the extracted gas is measured regularly; s3, calculating the theoretical value of the gas extraction cumulant of each extraction drill site; s4, the gas extraction cumulant proportion and the gas extraction cumulant calculation value of each extraction drill site are calculated; and S5, fine pre-evaluation of the extraction effect of the gas pre-extraction working face is completed. According to the method, the real-time extraction monitoring data of the ga