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1. (WO2018222530) MUD MOTOR INVERSE POWER SECTION

Pub. No.:    WO/2018/222530    International Application No.:    PCT/US2018/034639
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Sat May 26 01:59:59 CEST 2018
IPC: E21B 4/02
E21B 4/00
F04C 2/107
Applicants: REME TECHNOLOGIES, LLC
Inventors: SICILIAN, Joshua Alan
ALI, Faraz
Title: MUD MOTOR INVERSE POWER SECTION
Abstract:
A progressive cavity positive displacement motor having a solid metal stator (26) and a rotor (25) having an elastomeric seal layer (31) on its outer surface, as well as a method of manufacturing the motor. The elastomeric seal lay on the rotor can be formed by extruding the uncured elastomer, applying the extrusion to the metal rotor core and machining the cured elastomer to produce a uniform thickness seal layer. The elastomer can be made from a high molecular weight elastomer compound. Graphene additives can further enhance the performance characteristics of the elastomer.