Patent ID: 7303018
Filing Date: 2007-12-04
Classification: C09K,Y10S

Abstract:
1. A method for stimulating a carbonate formation penetrated by a well with a diverting agent of a gelled or thickened foam or fluid, the method comprising: (A.) introducing into the well either: (B.) introducing an acid stage into the well prior to and/or subsequent to introduction of the diverting agent of (A.)(i.) or the amidoamine oxide gelling agent and acid, water and/or brine and optional gas of(A.)(ii.) wherein the diverting agent diverts the flow of the acid stage from high permeability portions of the formation to low permeability portions of the formation and further wherein the amidoamine oxide gelling agent comprises amidoamine oxide neat or amidoamine oxide in a nonaqueous solvent.