Magnetics Business & Technology - May/June 2022 - 21

FEATURE ARTICLE
over the stator. Therefore, replacing an induction motor rotor
with a PM rotor will not have significant value because the
same amount of friction losses are generated with the PM rotor,
and the same poor conduction path for heat to the production
fluid is present. A system level approach specifically for specifically
for downhole applications is required.
Isolation from Harsh Environments
In order to deliver the full potential of PM motors, Upwing
has developed a unique motor and hydraulic architecture for
both the SCS and MDS. For the SCS, the hermetically sealed
motor operates in an inert gas at atmospheric pressure with
large gaps, and therefore, does not generate significant friction
losses even at 50,000rpm. The heat, which is mostly generated
in the stator component of the motor, is cooled through the flow
of the gas over the surface of the sealed chamber.
section independent of the stator, as the stator is part of the
permanent completion. This flow through architecture not only
provides cost effective rotor retrievability without the need to
affect any electrical connections or the permanent completion
downhole, but also provides direct access to the production
fluid as a coolant medium to the maximum motor surface area
to increase the heat dissipation. The motors are on the order of
five times the energy density of conventional induction motors
due to their open architecture that can dissipate more heat and
to run to higher speeds.
Magnetic Coupling
The radial gap type coupling includes an inner rotor that is connected
to a thrust module shaft, with a surrounding sleeve to
protect the magnets that generate a magnetic field. This inner
rotor is designed to be exposed to the downhole fluids, offering
a fully sealed assembly capable of operating in the high pressure,
high temperature well bore environment for the life of the
device.
The outer rotor of the magnetic coupling is sealed with the PM
motor in a hermetically sealed section that is maintained at a
low-pressure gas environment, since it generates higher windage
losses due to its larger diameter. An isolation sealing can
between the inner rotor and the outer rotor allows for magnetic
field linkage between the two rotors for torque transmittal from
outer to inner rotors.
For more info, see www.upwingenergy.com.
The complete rotor system, mostly magnets and other proprietary
components, is hermetically sealed.
The stators initially are varnished with a vacuum pressure impregnation
process. All varnished copper wires are potted, and the complete
stator is inserted into the sealed chamber.
For the MDS, the motor assemblies are completely canned.
The stator and rotor are independently hermetically sealed and
operate with a large clearance. The motor is integrated such
that the separate rotor can be retracted along with the pump
www.MagneticsMag.com
May/June 2022 * Magnetics Business & Technology 21
http://www.upwingenergy.com http://eecmotorsolver.com http://www.MagneticsMag.com

Magnetics Business & Technology - May/June 2022

Table of Contents for the Digital Edition of Magnetics Business & Technology - May/June 2022

Magnetics Business & Technology - May/June 2022
Editor’s Choice/ Features
GM Powers Ahead with e-Propulsion Innovation & Investment, Cutting Deals with VAC, GE Renewable Energy and MP Materials
Giant Permanent-Magnet Turbines from GE to Power World’s Largest Offshore Wind Farm
Peer into the Future of Magnetics for Energy at ARPA-E Summit
Research & Development
Bakker Magnetics - Improving Energy Density of Permanent Magnets for e-Mobility Manufacturing
Tech Tips
Product News
Industry News
Annual Industry Resource Guide
Events Calendar/ Advertising Index
Visions
Magnetics Business & Technology - May/June 2022 - Magnetics Business & Technology - May/June 2022
Magnetics Business & Technology - May/June 2022 - Cover2
Magnetics Business & Technology - May/June 2022 - 3
Magnetics Business & Technology - May/June 2022 - Editor’s Choice/ Features
Magnetics Business & Technology - May/June 2022 - 5
Magnetics Business & Technology - May/June 2022 - GM Powers Ahead with e-Propulsion Innovation & Investment, Cutting Deals with VAC, GE Renewable Energy and MP Materials
Magnetics Business & Technology - May/June 2022 - 7
Magnetics Business & Technology - May/June 2022 - 8
Magnetics Business & Technology - May/June 2022 - 9
Magnetics Business & Technology - May/June 2022 - 10
Magnetics Business & Technology - May/June 2022 - 11
Magnetics Business & Technology - May/June 2022 - 12
Magnetics Business & Technology - May/June 2022 - 13
Magnetics Business & Technology - May/June 2022 - Giant Permanent-Magnet Turbines from GE to Power World’s Largest Offshore Wind Farm
Magnetics Business & Technology - May/June 2022 - 15
Magnetics Business & Technology - May/June 2022 - 16
Magnetics Business & Technology - May/June 2022 - 17
Magnetics Business & Technology - May/June 2022 - 18
Magnetics Business & Technology - May/June 2022 - 19
Magnetics Business & Technology - May/June 2022 - 20
Magnetics Business & Technology - May/June 2022 - 21
Magnetics Business & Technology - May/June 2022 - Research & Development
Magnetics Business & Technology - May/June 2022 - 23
Magnetics Business & Technology - May/June 2022 - 24
Magnetics Business & Technology - May/June 2022 - 25
Magnetics Business & Technology - May/June 2022 - Tech Tips
Magnetics Business & Technology - May/June 2022 - 27
Magnetics Business & Technology - May/June 2022 - Product News
Magnetics Business & Technology - May/June 2022 - 29
Magnetics Business & Technology - May/June 2022 - 30
Magnetics Business & Technology - May/June 2022 - 31
Magnetics Business & Technology - May/June 2022 - 32
Magnetics Business & Technology - May/June 2022 - 33
Magnetics Business & Technology - May/June 2022 - Industry News
Magnetics Business & Technology - May/June 2022 - 35
Magnetics Business & Technology - May/June 2022 - 36
Magnetics Business & Technology - May/June 2022 - 37
Magnetics Business & Technology - May/June 2022 - 38
Magnetics Business & Technology - May/June 2022 - 39
Magnetics Business & Technology - May/June 2022 - Annual Industry Resource Guide
Magnetics Business & Technology - May/June 2022 - 41
Magnetics Business & Technology - May/June 2022 - 42
Magnetics Business & Technology - May/June 2022 - 43
Magnetics Business & Technology - May/June 2022 - 44
Magnetics Business & Technology - May/June 2022 - 45
Magnetics Business & Technology - May/June 2022 - 46
Magnetics Business & Technology - May/June 2022 - 47
Magnetics Business & Technology - May/June 2022 - 48
Magnetics Business & Technology - May/June 2022 - 49
Magnetics Business & Technology - May/June 2022 - 50
Magnetics Business & Technology - May/June 2022 - 51
Magnetics Business & Technology - May/June 2022 - Events Calendar/ Advertising Index
Magnetics Business & Technology - May/June 2022 - 53
Magnetics Business & Technology - May/June 2022 - Visions
Magnetics Business & Technology - May/June 2022 - Cover3
Magnetics Business & Technology - May/June 2022 - Cover4
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