In-situ generated proppant for hydraulic fracturing

The invention discloses an in-situ generated proppant for hydraulic fracturing. When a feed solution of the proppant and a fracturing fluid are injected into an artificial fracture together, small liquid beads formed by the feed solution of the proppant in the pumping process are dispersed in the fracturing fluid, the small liquid beads are carried into the artificial fracture by the fracturing fluid, and the small liquid beads undergo a curing reaction in the fracture to form the spherical granular proppant. The feed solution of the proppant comprises the following components: curable resin,a diluent, a curing agent and a pH regulator, wherein the curable resin is one or a mixture of at least two selected from thermoplastic phenolic resin, thermoplastic urea resin and melamine-formaldehyde resin. A phase interface stabilizer is added into the fracturing fluid. The feed solution beads of the proppant are gradually cured in fracture to form solid particles with good sphericity and highstrength, the effects of