Oil leakage prevention device used when sucker rod breaks off

The utility model provides an oil leakage prevention device used when a sucker rod breaks off. The device comprises a device body, an annular connector, a side connection section and an elastic sealing portion, wherein the device body is provided with a guide hole in the vertical direction, the suck...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	SUN HONGYAN, ZENG LIGUI, XU BO, LI XIN, LIANG HAILONG, MEN FUXIN, YU CONG, YANG XIAOPING, XIA YUNPENG, WANG GUANHE, LIU ZHUANYANG, SHEN HONGYAN, JIA YONGWEI, RAO DELIN, ZHANG WEI
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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