PROCESS FOR COATING GRAVEL PACK SAND WITH POLYMERIC BREAKER

摘要

A process for making a coated substrate that includes: treating a proppan t with a coating agent, wherein the coating agent comprises at least one of monomeric alpha- hydroxycarboxylic acids, alpha-hydroxycarboxylic acid polym ers, and combinations thereof; reacting the treated proppant to form a polym er coated proppant; and recovering the polymer coated, proppant is disclosed .