Systems and methods for recovering ammonia from a subsurface formation

A method for recovering ammonia from a subsurface formation fluidly connected to a wellbore, the method comprising:

• introducing an endothermic fluid composition into the wellbore through one or more injections lines fluidly connected to a wellhead, the wellhead fluidly connected to the wellbore, and the endothermic fluid composition introduced via one or more fluid injection pumps;
• reacting an ammonium chloride component of the endothermic fluid composition, thereby decreasing a temperature of an aqueous solution in the endothermic fluid and producing ammonia;
• exposing the reacted endothermic fluid composition to the subsurface formation, thereby thermally shocking at least a portion of the subsurface formation and inducing one or more fractures in the same;
• recovering the ammonia through one or more return lines fluidly connected to the wellhead, wherein:
• the endothermic fluid composition is injected into the wellbore through a tubing string positioned within the wellbore, the tubing string fluidly connected to the wellhead and the one or more injection lines, and
• the ammonia is recovered up a wellbore annulus defined by the wellbore and an exterior of the tubing string, the wellbore annulus fluidly connected to the wellhead and the one or more return lines;
• circulating the ammonia recovered through the one or more return lines to an ammonia retention vessel;
• introducing the ammonia from the ammonia retention vessel and hydrochloric acid from a hydrochloric acid storage vessel to a mixing apparatus;
• and
• mixing the ammonia and hydrochloric acid, thereby forming a recycled ammonium chloride stream.