US 11,851,614 B2
Proppant coatings and methods of making
Wengang Li, Dhahran (SA); Edreese Alsharaeh, Riyadh (SA); and Mohan Raj Krishnan, Riyadh (SA)
Assigned to Saudi Arabian Oil Company, Dhahran (SA); and Alfaisal University, Riyadh (SA)
Filed by Saudi Arabian Oil Company, Dhahran (SA); and Alfaisal University, Riyadh (SA)
Filed on Jun. 18, 2020, as Appl. No. 16/905,175.
Prior Publication US 2021/0395603 A1, Dec. 23, 2021
Int. Cl. C09K 8/80 (2006.01); C08F 12/08 (2006.01); C08F 20/06 (2006.01); C08G 59/50 (2006.01); C08K 3/04 (2006.01); C08K 5/03 (2006.01)
CPC C09K 8/805 (2013.01) [C08F 12/08 (2013.01); C08F 20/06 (2013.01); C08G 59/5006 (2013.01); C08G 59/5033 (2013.01); C08K 3/042 (2017.05); C08K 5/03 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A coated proppant comprising:
a proppant particle;
an intermediate cross-linked terpolymer layer encapsulating the proppant particle, wherein the intermediate cross-linked terpolymer layer comprises
a copolymer of a first monomer comprising a cis- or trans-ethylene substituted aromatic organic compound and a second monomer comprising an alkyl acrylate, and
a cross-linking agent incorporated into the copolymer backbone to form the terpolymer; and
an outer resin layer encapsulating the intermediate cross-linked terpolymer layer, wherein the outer resin layer comprises a cured epoxy resin and graphene.