Floating self-sealing well sealing device

The utility model relates to a self-sealing well sealing device for an oil well. In the floating self-sealing well sealing device, an upper shell is connected with a lower shell. The floating self-sealing well sealing device is characterized in that a glue core is arranged in a space formed by the u...

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Bibliographische Detailangaben
Hauptverfasser:	MO QINGHAI, ZHANG SUMIN, LOU JINGWEI, DANG WEI, YUAN HAIKUN, BAI YANLING
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:	The utility model relates to a self-sealing well sealing device for an oil well. In the floating self-sealing well sealing device, an upper shell is connected with a lower shell. The floating self-sealing well sealing device is characterized in that a glue core is arranged in a space formed by the upper shell and the lower shell; and the glue core can radially move in the shells along with the swing of a tubular column. The utility model has the advantages of high sealing performance, long service life and simple structure, and is convenient to maintain.