Methods of producing coated proppants
AssigneeSaudi Arabian Oil Company
InventorsRajesh Kumar Saini, Mohammad Hamidul Haque, Scott Douglas Allen
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Abstract
Methods for producing proppants with a polyurethane proppant coating are provided. The methods include forming aliphatic polycarbonate polyols from the copolymerization of epoxide and CO2 monomers, forming the polyurethane proppant coating by reacting the aliphatic polycarbonate polyols and at least one of diisocyanate monomers and isocyanate monomers, and coating proppant particles with the polyurethane proppant coating to produce coated proppants with polyurethane proppant coating.
Claims20
A method for producing coated proppants with a polyurethane proppant coating, the method comprising:
- forming aliphatic polycarbonate polyols from the copolymerization of epoxide and CO2 monomers;
- forming the polyurethane proppant coating by reacting the aliphatic polycarbonate polyols and at least one of diisocyanate monomers and isocyanate monomers;
- and
- coating proppant particles with the polyurethane proppant coating to produce coated proppants with polyurethane proppant coating.
A method for producing coated proppants with a polyurethane proppant coating, the method comprising:
- forming the polyurethane proppant coating by:
- reacting at least one of diisocyanate monomers or isocyanate monomers, and
- at least one of polyethercarbonate polyol, polycaprolactone polyols, polylactide polyols, poly(β-lactone) polyols, poly(s-lactone) polyols, polysulfide polyols, fluorinated vinyl ether polyols, siloxane polyols, or aminic polyols;
- and
- coating proppant particles with the polyurethane proppant coating to produce coated proppants with polyurethane proppant coating.
Dependencies are inferred from the claim text.