▎ 摘　　要

NOVELTY - Producing a coated proppant 100 comprising an intermediate cross-linked terpolymer layer 120, involves mixing a monomers solution comprising a first monomer, a second monomer that is different from the first monomer, a cross-linking agent, and an initiator, combining a proppant particle 110 with the monomers solution and polymerizing the monomer solution on the surface of the proppant particle to form a proppant particle having an intermediate cross-linked terpolymer layer on a surface of the proppant particle. A resin solution comprising an epoxy resin, a curing agent, and graphene is mixed. The proppant particle and the resin solution are combined, followed by curing the resin solution to form the coated proppant comprising an intermediate cross-linked terpolymer layer. USE - Method for producing coated proppant comprising intermediate cross-linked terpolymer layer, which is utilized for oil and gas production. ADVANTAGE - The method enables producing proppant coatings that are withstand at increased stresses, such as at pressure deep within a subsurface formation (greater than 8000 psi), have improved nanomechanical characteristics and thermal stability at greater than 250degreesC, protect proppant particle from degradation in the presence of aqueous fluids at downhole temperatures, and prevent proppants that are crushed from releasing proppant fines restricting flow conductivity of the formation. DESCRIPTION OF DRAWING(S) - The drawing shows schematic view of proppant particle and coated proppant. Coated proppant (100) Proppant particle (110) Intermediate cross-linked terpolymer layer (120) Outer resin layer (130)