Coated plastic beads and methods of using same to treat a...

Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Particulate matter

Reexamination Certificate

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C428S404000, C428S405000, C428S406000, C428S407000, C166S280100, C166S280200, C507S117000, C507S125000, C507S219000, C507S220000, C507S231000, C507S249000

Reexamination Certificate

active

07494711

ABSTRACT:
Plastic beads, including polyamides and polystyrene beads crosslinked with divinylbenzene, having a curable resin coating are highly useful for sand control and/or hydraulic fracturing of subterranean. The curable resin coated plastic beads preferably have an apparent specific gravity less than about 1.5.

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Darin, S.R., Huitt, J.L.; “Effect of a Partial Monolayer of Propping Agent on Fracture Flow Capacity” (SPE 1291-G); Petroleum Transactions, AIME; 34th Annual Fall Meeting of SPE; Oct. 4-7, 1959, Dallas, Texas; pp. 31-37.
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