Treating flowback emulsions

A method of hydraulic fracturing, comprising:

• providing a fracturing fluid comprising a friction reducer and capsules containing a demulsifier through a wellbore into a subterranean formation;
• hydraulically fracturing the subterranean formation with the fracturing fluid, wherein the fracturing fluid forms an emulsion with crude oil in the subterranean formation;
• releasing the demulsifier from the capsules in the subterranean formation, wherein release of the demulsifier from the capsules is delayed based on at least one of type of encapsulating agent of the capsules, amount of the encapsulating agent, wall thickness of the capsules, or strength comprising crosslinking of the encapsulating agent;
• breaking the emulsion in the subterranean formation with the demulsifier released by the capsules, wherein the friction reducer stabilizes the emulsion in the subterranean formation before the breaking of the emulsion with the demulsifier;
• and
• flowing the fracturing fluid as flowback from the subterranean formation through the wellbore to surface after breaking the emulsion, wherein the flowback as reaching the surface from the subterranean formation through the wellbore is not emulsified.