Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Praveen Agarwal0
Juan Carlos Medina0
Date of Patent
August 20, 2024
0Patent Application Number
176308080
Date Filed
April 30, 2020
0Patent Citations
Patent Primary Examiner
CPC Code
Patent abstract
Coated proppant particles are prepared by coating the particles with at least one polyisocyanate, and at least one urethane catalyst, and starch is present during at least part of the curing step. The starch becomes incorporated into in at least a portion of the cured coating. The coating cures rapidly at moderate temperatures, and bonds to itself well under conditions of heat and pressure as are experienced by the particles in subterranean formations.
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