SEALING DEVICE OF PACKER

FIELD: equipment for maintenance of oil and gas wells. SUBSTANCE: device is intended for use in isolation of well bore-hole when carrying out technological operations in well. Device has sealing taper-shaped bushes, limiting thrust members at ends of device. Washers are located between bushes. Washe...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	RADKOVSKIJ VLADIMIR ROMANOVICH, BONDAREV VIKTOR ARTEMOVICH, LENKEVICH JURIJ EVGEN'EVICH, CHEKANOV MIKHAIL GRIGOR'EVICH, TIMROV ALEKSAND FILIPPOVICH
Format:	Patent
Sprache:	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:	FIELD: equipment for maintenance of oil and gas wells. SUBSTANCE: device is intended for use in isolation of well bore-hole when carrying out technological operations in well. Device has sealing taper-shaped bushes, limiting thrust members at ends of device. Washers are located between bushes. Washers are made as split, taper, and spring types. Under action of external force, washers can turn in plane. This characteristic of washers ensures protection of sealing members from high pressure. For reverse movement, washers take initial configuration after external force is removed. Aforesaid embodiment of sealing device ensures widening of technological potentialities of packer due to increased distance between diameters of sealing member in moving position and in working position. EFFECT: higher efficiency. 3 dwg