Water reductions in subterranean formations

Details Water reductions in subterranean formations Water reductions in subterranean formations

E - Fixed Constructions

21

B

E21B 43/22 (2006.01) E21B 43/25 (2006.01)

Patent

CA 2569770

This invention provides a method of controlling water in a subterranean formation, said method comprising contacting said formation with a water control treatment agent which comprises an organosilane in an amount effective to reduce the water permeability of at least part of said formation. At the same time, any decrease in the overall hydrocarbon (e.g. oil) permeability of said formation is preferably minimised. The invention further provides a method of plugging or sealing a subterranean formation.

La présente invention concerne un procédé de régulation de l'eau dans une formation souterraine, ledit procédé consistant à mettre en contact ladite formation avec un agent de traitement et de régulation de l'eau qui comprend un organosilane selon une quantité efficace pour réduire la perméabilité à l'eau d'au moins une partie de la formation. Dans le même temps, toute diminution de la perméabilité globale des hydrocarbures (du pétrole par exemple) de la formation est de préférence réduite au maximum. Cette invention concerne également un procédé de colmatage ou d'étanchéification d'une formation souterraine.

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