Connecting pipe for gas extraction drilling

The utility model discloses a connecting pipe for gas extraction drilling. Comprising a gas pipeline used for extracting gas in a gas extraction drill hole, a positioning sleeve used for fixing the gas pipeline in the gas extraction drill hole, and a sealing locking ring used for sealing and locking...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	LIN SHUMAO, CHEN YAN, ZHANG GEQIANG, ZHAO SHUXING, CHEN HONGTAO
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 utility model discloses a connecting pipe for gas extraction drilling. Comprising a gas pipeline used for extracting gas in a gas extraction drill hole, a positioning sleeve used for fixing the gas pipeline in the gas extraction drill hole, and a sealing locking ring used for sealing and locking the relative position of the gas pipeline and the positioning sleeve. The fixing bolt is used for fixing the positioning sleeve in a gas extraction drill hole, the positioning sleeve is fixedly connected in the gas extraction drill hole, the gas pipeline is fixedly connected in the positioning sleeve, the sealing locking ring is fixedly connected between the gas pipeline and the positioning sleeve, and the sealing locking ring is fixedly connected between the gas pipeline and the positioning sleeve. And the fixing bolt is fixedly connected with the positioning sleeve and the gas extraction drill hole. According to the utility model, the problem that the hollow pipe body in the prior art is easy to loosen and mispl