US 11,898,418 B2
Prevention of ferromagnetic solids deposition on electrical submersible pumps (ESPs) by magnetic means
Mohannad Abdelaziz, Dhahran (SA); and Rafael Adolfo Lastra Melo, Dhahran (SA)
Assigned to Saudi Arabian Oil Company, Dhahran (SA)
Filed by Saudi Arabian Oil Company, Dhahran (SA)
Filed on Jan. 12, 2021, as Appl. No. 17/146,913.
Application 17/146,913 is a division of application No. 16/170,677, filed on Oct. 25, 2018, granted, now 11,111,925.
Prior Publication US 2021/0131232 A1, May 6, 2021
Int. Cl. E21B 41/00 (2006.01); E21B 43/12 (2006.01); B03C 1/033 (2006.01); F04D 13/08 (2006.01); F04B 53/20 (2006.01)
CPC E21B 41/00 (2013.01) [B03C 1/0335 (2013.01); E21B 43/128 (2013.01); F04D 13/086 (2013.01); B03C 2201/18 (2013.01); F04B 53/20 (2013.01); F04B 2205/501 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A non-transitory, computer-readable medium storing one or more instructions executable by a computer system to perform operations comprising:
in a tubing positioned in a wellbore with an electrical submersible pump (ESP) and a magnetic field source mounted on the tubing, the magnetic field source positioned above the electrical submersible pump (ESP) and configured to generate a magnetic field to suspend iron-containing particles above a discharge of the electrical submersible pump (ESP):
activating the magnetic field, preventing an accumulation of the iron-containing particles onto components of the electrical submersible pump (ESP) during a powered-off state of the electrical submersible pump (ESP);
suspending, using the magnetic field source positioned above the electrical submersible pump (ESP), the iron-containing particles until the electrical submersible pump (ESP) resumes production to flow the iron-containing particles out of the wellbore; and
switching, by a controller, between powering the electrical submersible pump (ESP) and powering the magnetic field source, including powering a selected one of the electrical submersible pump (ESP) and the magnetic field source.