Methods of sealing pipe strings in well bores

Details Methods of sealing pipe strings in well bores Methods of sealing pipe strings in well bores

E - Fixed Constructions

21

B

E21B 33/14 (2006.01) E21B 33/13 (2006.01) E21B 33/138 (2006.01)

Patent

CA 2245627

The present invention provides improved methods of sealing a string of pipe in a well bore. The methods basically comprise the steps of preparing a hardenable epoxy sealing composition which hardens into a solid mass having flexibility and resiliency comprising an epoxide containing liquid and a hardening agent, placing the epoxy composition in the annulus between the string of pipe and the walls of the well bore and allowing the epoxy composition to harden.

La présente invention fournit des méthodes améliorées pour sceller un tubage dans un puits de forage. Les méthodes comprennent essentiellement les étapes suivantes: préparer un composé de scellement époxydique durcissable qui durcit en une masse solide dotée de souplesse et d'élasticité et constituée d'un liquide contenant un époxyde et un agent durcisseur, placer le composé époxydique dans l'espace annulaire entre le tubage et les parois du puits de forage et laisser durcir le composé époxydique.

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