a shaped charge includes a charge case ; an explosive disposed inside the charge case ; and a liner for retaining the explosive in the charge case , wherein the liner comprises a material reactive with a component of an earth formation . a method for perforating in a well includes disposing a perforating gun in the well , wherein the perforating gun comprises a shaped charge having a charge case , an explosive disposed inside the charge case , and a liner for retaining the explosive in the charge case , wherein the liner includes a material that can react with a component of an earth formation ; detonating the shaped charge to form a perforation tunnel in a formation zone ; and allowing the material comprising the liner to react with the component of the earth formation .