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Preferred Technology Llc patents (2015 archive)


Recent patent applications related to Preferred Technology Llc. Preferred Technology Llc is listed as an Agent/Assignee. Note: Preferred Technology Llc may have other listings under different names/spellings. We're not affiliated with Preferred Technology Llc, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "P" | Preferred Technology Llc-related inventors


11/05/15 / #20150315892

Proppant mixtures

The invention relates to a propped, fractured, subterranean field with (a) a first proppant and (b) a second proppant that exhibits a relatively higher average crush strength and/or an ability to form a particle to particle bonded structure than the first proppant. Preferably, the first proppant is uncoated sand and the second proppant is resin-coated sand. ... Preferred Technology Llc

11/05/15 / #20150315459

Flash coating treatments for proppant solids

Treatment methods for coated or uncoated proppants that can, among other things, control fugitive dust during typical handling procedures with typical transport equipment and/or add functional features to the proppant solid are disclosed herein.. . ... Preferred Technology Llc

09/17/15 / #20150259592

Coated and cured proppants

Solid proppants are coated with a coating that exhibits the handling characteristics of a precured coating while also exhibiting the ability to form particle-to-particle bonds at the elevated temperatures and pressures within a wellbore. The coating includes a substantially homogeneous mixture of (i) at least one isocyanate component having at least 2 isocyanate groups, and (ii) a curing agent. ... Preferred Technology Llc

07/23/15 / #20150203745

Coated and cured proppants

Solid proppants are coated with a phenol-urethane coating in one or more layers by a method comprising coating a proppant solid and then curing the coated proppant under conditions sufficient to substantially cure said proppant, wherein said coating comprises a substantially homogeneous mixture of (i) an isocyanate component having at least 2 isocyanate groups, (ii) an amine reactant, and optionally (iii) an amine that is a latent curing agent for said isocyanate.. . ... Preferred Technology Llc

04/30/15 / #20150119301

Flash coating treatments for proppant solids

Treatment methods for coated or uncoated proppants that can, among other things, control fugitive dust during typical handling procedures with typical transport equipment and/or add functional features to the proppant solid are disclosed herein.. . ... Preferred Technology Llc








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