Proppants with soluble composite coatings

Details Proppants with soluble composite coatings Proppants with soluble composite coatings

C - Chemistry, Metallurgy

09

K

C09K 8/80 (2006.01)

Patent

CA 2665160

A new proppant comprises a proppant particle substrate, a water-soluble external coating on the proppant particle substrate and a microparticulate reinforcing and spacing agent at least partially embedded in the water-soluble external coating in a manner such that the microparticulate reinforcing agent is substantially released from the proppant particle substrate when the water-soluble coating dissolves or degrades.

L'invention concerne un nouvel agent de soutènement, comprenant un substrat de particule d'agent de soutènement, un revêtement externe soluble dans l'eau recouvrant le substrat de particule d'agent de soutènement et un agent d'espacement et de renfort à base de microparticules. Cet agent de renfort est au moins partiellement noyé dans le revêtement externe soluble dans l'eau de façon à être sensiblement libéré du substrat de particule d'agent de soutènement lorsque le revêtement soluble dans l'eau se dissout ou se dégrade.

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