Proppant charge and method

Details Proppant charge and method Proppant charge and method

1985-06-20

1987-05-12

Terapane, John F.

Compositions

Leather or fur treating

166280, 427221, 428403, 428407, C09K 300, E21B 43267

Patent

active

046648194

ABSTRACT:
A pre-cured proppant charge useful, for example, for propping a fracture in a subterranean formation is disclosed. The charge is made up of a large number of particles composed of a single substrate particle which can be silica sand, glass beads, or the like, coated with a thermoset resin. The thermoset resin is one which, when it is the resin coating on particles of a proppant charge, produces such a charge when the Conductivity Ratio, as defined herein, throughout a given closure stress range is greater than that of a charge of the uncoated particles. The proppant is produced by coating the particulate substrate with a suitable thermosettable resin, controlling the coating step to produce substrate particles coated with a fusible, thermosetting resin, and curing the resin by heating the coated particles, so that substantially all of the resin coated particles are composed of a single substrate particle with a thermoset resin coating thereon, prior to introduction into a subterranean well. In use, the proppant is merely placed, usually suspended, in a carrier fluid, that is, introduced into a fracture in a subterranean formation.

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