Novel polish rod sealer

A novel polish rod sealer is an assisting device for production of oil wells and solves the problem of the prior art. The novel polish rod sealer comprises a polish rod sealer body, a primary packing sealing cavity, a packing pressing sleeve, a pressing cap, a secondary packing base, a secondary sea...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ZHANG ZHIFENG, GENG GUANGZHAO, HAN YUANYUAN, LI XIAOHUI, LUAN SHIQIANG, CHEN XIANGWEI, WANG JIXUE, DONG DIANZE, JIN HUI, LIU PINGPING
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:	A novel polish rod sealer is an assisting device for production of oil wells and solves the problem of the prior art. The novel polish rod sealer comprises a polish rod sealer body, a primary packing sealing cavity, a packing pressing sleeve, a pressing cap, a secondary packing base, a secondary sealing cavity, a secondary packing pressing sleeve and a second packing pressing cap which are connected. The primary packing sealing cavity is arranged in the polish rod sealer body, a packing is mounted in the primary packing sealing cavity, the packing pressing sleeve is pressed on the packing, the pressing cap is in threaded connection on the packing pressing sleeve, the secondary packing base is arranged on the upper side of the pressing cap, the secondary sealing cavity is arranged on the secondary packing base and connected on an outer thread of the primary packing sealing cavity, another packing is mounted in the secondary sealing cavity, the secondary packing pressing sleeve is pressed on the packing of the