Deep -well pump fixed valve anti -sticking bleeder

The utility model discloses a deep -well pump fixed valve anti -sticking bleeder, its top connection and last seating nipple spiro union, go up the seating nipple and descend the seating nipple through being connected the silk, lower clutch and lower seating nipple spiro union, it is arranged in the...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	Yang Shengjun, Zhang Hongqi, Jia Bingying, Lei Enda, Huang Xiaobo, Wang Zhi, Zong Xiaojun, Zheng Tao, Ju Yuejun, Tang Ke, An Liping
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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