Double-sealing bridge type well cementation device

The utility model relates to the technical field of oil field cementing well cementation, in particular to a double-sealing bridge type well cementation device which can better solve the problems that well cementation is conducted on the upper portion and the lower portion of an oil layer at the sam...

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Bibliographische Detailangaben
Hauptverfasser:	ZHAO ZHIQIANG, LI GUOFENG, SHI YUWEI, LI WEI, FENG DEJIE, DONG ENBO, WANG LUFENG
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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