Expansion cone for downhole tool

A downhole tool for creation of an annular seal in a well and a method of cementing a casing in a well, wherein tool and method make use of an expansion cone. The expansion cone is driven through a portion of the tool having a sealing element on the wellbore side so that the portion is expanded and...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Patrick Lyle Cherney, Henry Eugene Rogers
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:	A downhole tool for creation of an annular seal in a well and a method of cementing a casing in a well, wherein tool and method make use of an expansion cone. The expansion cone is driven through a portion of the tool having a sealing element on the wellbore side so that the portion is expanded and the sealing element brought into contact with the wellbore. A force multiplier is used to increase the force exerted on the expansion cone by fluid pressure.