Composition and method for water and gas shut-off in subterranean formations

A composition useful for subterranean water or gas shut off applications includes organosilane-modified colloidal silica and an accelerator. The accelerator includes one or more organic or inorganic salts. A method of using a composition, including an organosilane-modified colloidal silica and an ac...

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Hauptverfasser: Restorp, Per Anders, Sundblom, Andreas Ake, Huang, Jin, Almohsin, Ayman Mohammed, Lagnemo, Hans Olof, Bataweel, Mohammed A, Karadkar, Prasad Baburao
Format: Patent
Sprache:eng
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Zusammenfassung:A composition useful for subterranean water or gas shut off applications includes organosilane-modified colloidal silica and an accelerator. The accelerator includes one or more organic or inorganic salts. A method of using a composition, including an organosilane-modified colloidal silica and an accelerator, includes forming a fluid system that is flowed to a formation in a subterranean zone, such as through a wellbore, where the composition forms a gel to plug the formation and shut off water flow into the wellbore.