A device that is used for hanging on oil pipe inner wall preparation

The utility model discloses a device that is used for hanging on oil pipe inner wall preparation, including top connection (1), top connection (1) inside cylindrical through -hole shape for having a ladder at least, top connection (1) one end spiro union the spiro union has lower clutch (2) in the o...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	GAO YANNING, SU CHUNE, LI JIANZHONG, WANG DACHUANG, YAN CHANGHAO, ZHAO HAIYONG, LI MING, SHANG SHUILONG
Format:	Patent
Sprache:	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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