Proppant With Polyurea-Type Coating

Proppants for hydraulic fracturing of oil and gas wells are coated with a polyurea-type coating. In a preferred embodiment, the polyurea-type coating is formed by contacting a polymeric isocyanate with an amount of water a blowing catalyst at a rate and quantity sufficient to generate a reactive ami...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	McDaniel Robert Ray, Barthel Ralph Edward, McCrary Avis Lloyd, Monastiriotis Spyridon
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMISTRY DYES MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS POLISHES
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