Breaker fluids and methods of using the same

Details Breaker fluids and methods of using the same Breaker fluids and methods of using the same

E - Fixed Constructions

21

B

E21B 21/00 (2006.01) E21B 37/00 (2006.01)

Patent

CA 2707263

A method of cleaning a wellbore drilled with a drilling fluid that forms a filter cake that includes emplacing a breaker fluid into the wellbore, the breaker fluid comprising: an aqueous fluid; a fragmentation agent; and an amphoteric chemotrope; and shutting in the well for a period of time sufficient to initiate breaking of the filter cake is disclosed.

L'invention concerne un procédé de nettoyage de puits foré avec un fluide de forage qui forme un gâteau de filtration, qui consiste à placer un fluide de broyage dans le puits, ce fluide de broyage comprenant un fluide aqueux, un agent de fragmentation et un élément chémotrophe amphotère, et à refermer le puits pendant une durée suffisante pour lancer le broyage du gâteau de filtration.

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