APPARATUS AND METHODS FOR SEALING VOIDS IN A SUBTERRANEAN FORMATION

The present invention is directed to downhole tools that include an outer tubing disposed around an inner tubing for placement of a sealant mixture into a void in a subterranean fonnation and associated methods of use. Furthermore, the present invention is directed to a method of preparing a cement...

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Bibliographische Detailangaben
Hauptverfasser:	CURTICE, RICHARD J, WILCOX, GREGORY D, FRY, LEN E
Format:	Patent
Sprache:	eng ; fre
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 present invention is directed to downhole tools that include an outer tubing disposed around an inner tubing for placement of a sealant mixture into a void in a subterranean fonnation and associated methods of use. Furthermore, the present invention is directed to a method of preparing a cement composition, which includes mixing a first cementitious component and an aqueous-based fluid in a flrst mixer to form an intermediate cement composition, and mixing the intermediate cement composition and a second cementitious component in a second mixer to form the cement composition. L'invention concerne des outils de fond de trou comprenant un tube de production extérieur disposé autour d'un tube de production intérieur afin de déposer un mélange de produits d'obturation dans un vide de formation souterraine, et des procédés associés. L'invention concerne également un procédé permettant de préparer une composition de ciment, qui consiste à mélanger un premier composant cimentaire et un fluide à base aqueuse dans un premier mélangeur afin de former une composition de ciment intermédiaire, puis à mélanger la composition de ciment intermédiaire et un second composant cimentaire dans un second mélangeur afin de former la composition de ciment.