Patent ID: 7883740
Filing Date: 2011-02-08
Classification: C09K,Y10S

Abstract:
1. A method of improving the quality of particulates for use in a subterranean operation comprising: providing low-quality particulates; at least partially coating the particulates with a first layer of a first curable resin and allowing the first layer of the first curable resin to cure; and then at least partially coating the particulates with a second layer of a second curable resin on-the-fly; and allowing the second layer of the second curable resin to cure to create twice-coated low-quality particulates; wherein the first curable resin comprises at least one of the following: a partially reacted blend of an aliphatic polyester and a trifunctional isocyanate; an acrylic polyol cured with a polyisocyanate compound; a mixture of an organo-pilysiloxane compound and a platinum catalyst; a mixture of a diorganopolysiloxane end-blocked with a hydroxyl group, an organic compound having a C═O group, an organic compound having a NH using the twice-coated low-quality particulates in a subterranean treatment operation.