US 11,888,375 B2
Electric motor for operating in conductive fluids and related method
Libo Yang, Houston, TX (US); Akshay Sagar, Houston, TX (US); Peter Nicholas Wells, Houston, TX (US); Scott Patrick Dyas, Houston, TX (US); Haixiao Weng, Houston, TX (US); and Aaryan Sagar, Houston, TX (US)
Assigned to MS DIRECTIONAL, LLC, Conroe, TX (US)
Filed by MS Directional, LLC, Conroe, TX (US)
Filed on Nov. 25, 2020, as Appl. No. 17/104,248.
Claims priority of provisional application 62/941,009, filed on Nov. 27, 2019.
Prior Publication US 2021/0175769 A1, Jun. 10, 2021
Int. Cl. H02K 5/10 (2006.01); H02K 3/28 (2006.01); H02K 5/20 (2006.01); H02K 3/44 (2006.01); H02K 5/132 (2006.01)
CPC H02K 5/10 (2013.01) [H02K 3/28 (2013.01); H02K 3/44 (2013.01); H02K 5/132 (2013.01); H02K 5/20 (2013.01); H02K 2205/09 (2013.01)] 29 Claims
OG exemplary drawing
 
1. A downhole tool, comprising:
an electric motor, comprising:
an electric motor rotor and an electric motor stator disposed circumferentially with the electric motor rotor; and at least one of the motor stator and motor rotor comprising an electric motor winding and a termination for the winding, the winding and termination having a nonconductive coating;
wherein the electric motor is configured to allow a conductive liquid to contact the electric motor rotor and the electric motor stator without short-circuiting the electric motor; and
wherein the electric motor is powered by downhole power supply and is a component of the downhole tool.