RESIN SYSTEM FOR COMPOSITE DOWNHOLE FRAC PLUG AND BRIDGE PLUG TOOLS AND RELATED METHODS

摘要

A new resin blend is disclosed, which may be referred to as a hybrid resin. The resin blend includes an effective amount of benzoxazine resin or benzoxazine derivative mixed with at least one of epoxy resin, phenolic resins and other thermosetting polymers at varying ratios. The new resin blend has enhanced hot/wet performance in down hole frac and bridge plug applications in a cost effective manner with ease of processing.

主权项

1. A method of forming at least one of a downhole frac plug product and bridge plug product comprising:
mixing a thermosetting polymer with an effective amount of additive; mixing an amount of benzoxazine or benzoxazine derivative to the thermosetting polymer and the additive to form a hybrid resin; coating a plurality of tows comprising a plurality of composite strands or coating a convolute cloth with the hybrid resin; laying the tows or the convolute cloth with the coating of hybrid resin around a mandrel to form a composite layer; and repeating the coating and laying steps to form additional composite layers.