Treatment and Reuse of Oilfield Produced Water For Operations In A Well

A method of treating a subterranean formation in a well comprising:

• providing an aqueous medium comprised at least in part of oilfield produced water;
• contacting the aqueous medium with a zirconium compound and a friction-reducing additive;
• whereby the fluid viscosity and/or fluid drag reduction ability of the combination of the aqueous medium, the zirconium compound and friction-reducing additive is improved compared to the aqueous medium and friction-reducing additive alone;
• introducing the combination in to the well;
• and
• allowing the combination to contact the formation.

A method of treating a subterranean formation in a well comprising:

• providing an aqueous medium comprised at least in part of oilfield produced water;
• contacting the aqueous medium with a zirconium compound and a gelling additive to form a viscosified fluid;
• whereby the fluid viscosity and/or fluid drag reduction ability of the viscosified fluid made of combination of the aqueous medium, the zirconium compound and gelling additive is improved compared to the aqueous medium and gelling additive alone;
• introducing the viscosified fluid in to the well;
• and
• allowing the combination to contact the formation.