Annulus safety valve for electric pump

Annulus safety valve for electric pump

The utility model relates to an annulus safety valve for an electric pump. The safety valve is composed of an upper connector (1), a nut (2), a spring (3), a valve rod (4), a connection sleeve (7), a sliding valve (8) and a lower connector (12). The upper connector (1) is sequentially connected with...

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Hauptverfasser: LI GUANGXIANG, YU QINGGUO, LIU WENFENG, DU QIANG, ZU ZHENKUN, MA AIMIN, BAI DIANGANG, LIU BAILIANG, JIN HAIFENG, GUO HAITAO, MA HUIJIE
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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creator LI GUANGXIANG
YU QINGGUO
LIU WENFENG
DU QIANG
ZU ZHENKUN
MA AIMIN
BAI DIANGANG
LIU BAILIANG
JIN HAIFENG
GUO HAITAO
MA HUIJIE
description The utility model relates to an annulus safety valve for an electric pump. The safety valve is composed of an upper connector (1), a nut (2), a spring (3), a valve rod (4), a connection sleeve (7), a sliding valve (8) and a lower connector (12). The upper connector (1) is sequentially connected with the connection sleeve (7) and the lower connector (12). The nut (2), the spring (3) and the valve rod (4) are sequentially installed in the upper connector (1) and an inner cavity of the connection sleeve (7). The valve rod (4) in the inner cavity of the connection sleeve (7) is connected with the sliding valve (8), and a balance hole B is formed in the sliding valve (8). The safety valve can achieve the effects of sealing the oil sleeve annulus area, discharging sleeve gas and conducting circulation well control under emergent conditions, and effectively prevents blowout or overflowing.
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subjects 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
title Annulus safety valve for electric pump
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