An Effective Matrix Diversion Technique for Carbonate Formations

摘要

The removal of formation skin damage from carbonate reservoirs is ordinarily accomplished by stimulation with hydrochloric acid. Uniform coverage of the zone being treated during matrix acidiz- Ing stimulations of carbonate reservoirs is an accepted require- Ment for successful treatment. However, the task of achieving Efficient diversion and uniform zonal coverage is often difficult Because of permeability heterogeneity within the treated interval. In this article we describe a technique that has been used suc- Cessfully to diver treating fluids in carbonate formations.