Method of increasing porosity and permeability of subsurface rock formations to increase efficiency of secondary hydrocarbon recovery operations

摘要

The permeability and porosity of subsurface rock formations are enhanced by injecting a fluid into the formation together with carbon dioxide, an ammonium ion source, and a catalyst system that includes a free chloride ion source, a free nitrate ion source, and an anionic hydrophile dissolved in a polar solvent.