US 12,312,870 B2
Split downhole transformer for high power applications
Rafael Adolfo Lastra Melo, Dhahran (SA); Jamie Cochran, Aberdeenshire (GB); and Jinjiang Xiao, Dhahran (SA)
Assigned to SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed by SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed on Sep. 26, 2023, as Appl. No. 18/474,932.
Prior Publication US 2025/0101812 A1, Mar. 27, 2025
Int. Cl. E21B 17/00 (2006.01); E21B 17/02 (2006.01); E21B 43/12 (2006.01); H01F 27/28 (2006.01)
CPC E21B 17/003 (2013.01) [E21B 17/028 (2013.01); E21B 43/128 (2013.01); H01F 27/28 (2013.01)] 18 Claims
OG exemplary drawing
 
10. A method for powering an electrically powered tool downhole in a well, the method comprising:
manufacturing a female component comprising:
a female component body located in a housing;
primary coils wound through the female component body; and
a borehole delineated by an inner circumferential surface of the female component body and having a borehole axis, wherein the borehole outlines a shape;
manufacturing a male component comprising:
a male component body having an external surface formed in the shape;
centralizing sections installed in series with the male component body, formed in the shape, and comprising bearings
secondary coils wound through the male component body; and
a conduit extending through the male component body and having a conduit axis;
connecting the female component to production tubing;
installing the production tubing into the well;
connecting the male component to the electrically powered tool;
running the male component and the electrically powered tool into an interior of the production tubing;
inserting the male component into the female component downhole in the well to form a downhole split transformer configured to allow power to transfer from a surface location to the electrically powered tool; and
powering the electrically powered tool using the split downhole transformer.