Converting drilling fluids to cementitious compositions

Details Converting drilling fluids to cementitious compositions Converting drilling fluids to cementitious compositions

C - Chemistry, Metallurgy

04

B

C04B 28/24 (2006.01) C04B 18/04 (2006.01) C04B 18/14 (2006.01) C04B 22/06 (2006.01) C04B 28/02 (2006.01) C04B 28/18 (2006.01) E21B 33/13 (2006.01) E21B 33/14 (2006.01)

Patent

CA 2111252

Methods of drilling a well bore utilizing a circulating drilling fluid and subsequently disposing of the drilling fluid by converting it to a cementitious composition are provided. The methods basically comprise the steps of forming the drilling fluid with an aqueous suspension of condensed silica fume as a component thereof, drilling a well bore using the drilling fluid, activating the drilling fluid whereby it will subsequently set into a hard cementitious mass and placing the set activated drilling fluid in one or more desired locations whereby it sets therein.

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