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1. (WO2018200108) PACKERS HAVING CONTROLLED SWELLING AND METHODS OF MANUFACTURING THEREOF

Pub. No.:    WO/2018/200108    International Application No.:    PCT/US2018/024297
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Tue Mar 27 01:59:59 CEST 2018
IPC: E21B 33/12
Applicants: BAKER HUGHES, A GE COMPANY, LLC
Inventors: DUAN, Ping
SADANA, Anil
FURLAN, Wayne
Title: PACKERS HAVING CONTROLLED SWELLING AND METHODS OF MANUFACTURING THEREOF
Abstract:
A sealing system for a flow channel comprises a mandrel; a swellable element disposed about the mandrel; and a degradable polymeric element disposed on a surface of the swellable element and configured to delay swelling of the swellable element; wherein the degradable polymeric element comprises one or more of the following: polyurethane; cured cyanate ester; an epoxy; polyimide; unsaturated polyester; or nylon.