Method of stimulating a subterranean formation using an acid precursor composition

A method of stimulating a subterranean formation, comprising:

• placing a fracturing composition comprising hydrochloric acid in a subterranean formation comprising limestone;
• hydraulically fracturing the subterranean formation with the fracturing composition to form at least one fracture and a spent fracturing composition comprising calcium chloride;
• flushing the spent fracturing composition from the at least one fracture;
• placing an acid precursor composition in the subterranean formation, wherein the acid precursor composition comprises greater than 7 to about 99 wt. %, based on the total weight of the acid precursor composition, of an acid precursor, and wherein the acid precursor penetrates at least about 1 cm into a fracture face of the fracture;
• contacting the acid precursor and the fracture for at least 4 times an acid formation half-life of the acid precursor to produce an acid from the acid precursor;
• and
• acidizing the subterranean formation in the fracture with the formed acid.

A method of stimulating a subterranean formation, comprising:

• placing a fracturing composition comprising a proppant and hydrochloric acid in a subterranean formation;
• hydraulically fracturing the subterranean formation with the fracturing composition to form at least one fracture and a spent fracturing composition comprising calcium chloride;
• flushing the spent fracturing composition from the at least one fracture;
• placing an acid precursor composition in the subterranean formation, wherein the acid precursor composition comprises greater than 7 to about 99 wt. %, based on the total weight of the acid precursor composition, of an acid precursor, and wherein the acid precursor penetrates about 5 cm to about 2 m into a fracture face of the fracture, wherein the acid precursor comprises at least one of diethylene glycol diformate, ethylene glycol monoformate, ethyl lactate, ethyl formate, methyl formate, glycerin diacetate, methyl lactate, or any combination thereof;
• contacting the acid precursor and the fracture for at least 4 times an acid formation half-life of the acid precursor to produce an acid from the acid precursor;
• and
• acidizing the subterranean formation in the fracture with the formed acid.