US 12,247,469 B2
Electrical submersible pump for a wellbore
Mostafa M. Bori, Qatif (SA); Hashim A. Alsadah, Safwa (SA); Matias S. Funes, Ras Tanura (SA); and Ahmed A. Khalaf, Safwa (SA)
Assigned to Saudi Arabian Oil Company, Dhahran (SA)
Filed by Saudi Arabian Oil Company, Dhahran (SA)
Filed on Aug. 10, 2023, as Appl. No. 18/447,796.
Prior Publication US 2025/0052138 A1, Feb. 13, 2025
Int. Cl. E21B 43/12 (2006.01); F04D 13/08 (2006.01); F04D 13/10 (2006.01)
CPC E21B 43/128 (2013.01) [F04D 13/086 (2013.01); F04D 13/10 (2013.01); F05D 2300/1723 (2013.01); F05D 2300/173 (2013.01); F05D 2300/174 (2013.01); F05D 2300/222 (2013.01); F05D 2300/505 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A downhole pumping system, comprising:
an electric motor configured to receive electric power from a cable coupled to a power source at a terranean surface; and
a submersible pump coupled to the electric motor and positionable within a wellbore formed from the terranean surface toward a subterranean formation, the submersible pump configured to circulate a wellbore fluid through the wellbore toward the terranean surface, the submersible pump comprising a plurality of radial stages, with at least one radial stage of the plurality of radial stages comprising a plurality of shape change members attached to one or more surfaces of the submersible pump, each of the plurality of shape change members configured to undergo a shape change based at least in part on a characteristic of the wellbore fluid, the plurality of shape change members comprising:
a first shape change member attached to an outer radial surface of a diffuser of the at least one radial stage and configured to counter a horizontal acting force;
a second shape change member attached to an inner radial surface of the diffuser of the at least one radial stage and configured to counter the horizontal acting force;
a third shape change member attached to a surface of a hub of the at least one radial stage and configured to counter the horizontal acting force;
a fourth shape change member attached to a surface of the at least one radial stage adjacent a downthrust washer of the submersible pump and configured to counter a down thrust acting force; and
a fifth shape change member attached to a surface of the at least one radial stage adjacent an upthrust washer of the submersible pump and configured to counter an upthrust acting force.