VES fluids in acidizing carbonate reservoir offer a range of unique benefits, including superior performance and easy field handling......
DosVesta™ A20 Viscoelastic Surfactant
DosVesta™ A20 viscoelastic surfactant is a highly effective diverting agent for HCl designed for use in well acidizing and acid fracturing. This product is a viscoelastic surfactant that effectively gels spent hydrochloric acid and provides stable viscosities. DosVesta™ A20 as a viscoelastic surfactant can be formulated in HCl and pumped downhole, where the acid will make contact with the carbonate rock formation, creating CaCl2. The acid will etch the rock formation and create worm holes, while the CaCl2 will cause the gelling agent to thicken.
As DosVesta™ A20 thickens, it will divert the acid to other areas of the formation to be etched, reducing the loss of acid to the high permeability zones and allowing enhanced stimulation of lower permeability areas, resulting in increased penetration and treatment effectiveness.
|Solubility in 15% HCl||-||Soluble|