US 12,140,136 B2
Surface driven downhole pump system
Jinjiang Xiao, Dhahran (SA)
Assigned to SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed by SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed on Mar. 1, 2023, as Appl. No. 18/177,104.
Application 18/177,104 is a division of application No. 16/881,678, filed on May 22, 2020, granted, now 11,592,018, issued on Feb. 28, 2023.
Prior Publication US 2023/0204027 A1, Jun. 29, 2023
Int. Cl. F04B 47/02 (2006.01); F04B 17/03 (2006.01); F04C 2/107 (2006.01); F04C 29/00 (2006.01); F04B 19/22 (2006.01); F04B 53/14 (2006.01)
CPC F04B 47/02 (2013.01) [F04B 17/03 (2013.01); F04C 2/1071 (2013.01); F04C 29/0085 (2013.01); F04B 19/22 (2013.01); F04B 53/144 (2013.01); F04C 29/0064 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A system, comprising:
an enclosure body having a magnetically transparent wall and an inner chamber;
wherein, via the inner chamber, the enclosure body is fluidly connected to a wellbore through a wellhead assembly and is structured to contain fluid pressure from the wellbore;
an electric motor arranged in a surface region above the wellbore, the electric motor comprising a stationary member having coil windings in slots, a movable member having one or more permanent magnets, the stationary member disposed outside the enclosure body, the movable member disposed within the inner chamber of the enclosure body such that the movable member is exposed to a different environment compared to the stationary member, the movable member and the stationary member separated by a gap containing at least a portion of the magnetically transparent wall;
a pump arranged downhole in the wellbore; and
a rod having a first end coupled to the movable member and a second end coupled to the pump, the rod to move with the movable member and thereby operate the pump,
wherein the electric motor is a rotary motor, and wherein the movable member is a rotating member.