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Composition and method for hydraulic fracturing and evaluation and diagnostics of hydraulic fractures using infused porous ceramic proppant

  • US 10,316,242 B2
  • Filed: 03/14/2014
  • Issued: 06/11/2019
  • Est. Priority Date: 03/15/2013
  • Status: Active Grant
First Claim
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1. A ceramic proppant composition for use in hydraulic fracturing, the composition comprising:

  • non-porous particulates having a permeability of at least about 300 D at 4,000 psi closure stress; and

    porous ceramic particulates having an internal interconnected porosity of from about 5% to about 35% and comprising a chemical treatment agent disposed within the porous ceramic particulates and a polymer coating that is a reaction product of a cross-linker and a phenol formaldehyde polymer, the phenol formaldehyde polymer having a viscosity of from about 1100 cps to about 1850 cps at 150°

    C., wherein the polymer coating is configured to permit the chemical treatment agent to elute therethrough, wherein the ceramic proppant composition is formed by infusing the chemical treatment agent within the porous ceramic particulates at a first temperature of from 430°

    F. to 440°

    F. and coating the infused porous ceramic particulates with the polymer coating at a second temperature of from 410°

    F. to 420°

    .

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