Measurement system for gas emission amount of coal wall while drilling and drilling cuttings and operation method

The invention discloses a while-drilling coal wall and drilling cuttings gas emission amount measuring system which is arranged on the outer side of a drill hole and comprises a drilling cuttings separator, a drilling cuttings storage device, a gas collecting pipe and an extraction pipeline, and a d...

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Bibliographische Detailangaben
Hauptverfasser:	LI YANZENG, FAN JIAFENG, CAO YAOLIN, LIU FENG, GUO ZHONGWEI, CUI HONGLEI, HAN BING, XU XINGFU
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Beschreibung
Zusammenfassung:	The invention discloses a while-drilling coal wall and drilling cuttings gas emission amount measuring system which is arranged on the outer side of a drill hole and comprises a drilling cuttings separator, a drilling cuttings storage device, a gas collecting pipe and an extraction pipeline, and a drilling cuttings electric valve and a drilling cuttings gas discharging electric valve are assembled on the upper surface of the drilling cuttings storage device; the invention further discloses an operation method of the measurement system for the gas emission quantity of the coal wall while drilling and the drilling cuttings, through statistical analysis of gas parameters and combination of positioning information of gas extraction drill holes, the gas emission quantity of the coal wall while drilling and the drilling cuttings can be accurately measured, and the gas emission quantity of the coal wall while drilling and the drilling cuttings can be accurately measured. The method comprises the following steps of: