US 11,808,095 B2
Downhole centralizer
Paul Leducq, Cambridge (GB); Sebastien Isambert, Clamart (FR); Francois Chevillard, Abbeville (FR); Fabio Cecconi, Clamart (FR); and Vincent Chatelet, Clamart (FR)
Assigned to SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US)
Filed by Schlumberger Technology Corporation, Sugar Land, TX (US)
Filed on Feb. 25, 2022, as Appl. No. 17/652,499.
Prior Publication US 2023/0272680 A1, Aug. 31, 2023
Int. Cl. E21B 17/10 (2006.01); E21B 47/13 (2012.01); E21B 17/02 (2006.01); E21B 47/14 (2006.01)
CPC E21B 17/1078 (2013.01) [E21B 17/0285 (2020.05); E21B 47/13 (2020.05); E21B 47/14 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a downhole centralizer comprising a body, a first contacting member, and a second contacting member;
wherein the first contacting member is mechanically connected to the body to permit limited relative radial and/or axial movement between the first contacting member and the body;
wherein the second contacting member is mechanically connected to the body to inhibit relative radial and/or axial movement between the second contacting member and the body; and
wherein when the downhole centralizer is disposed within a downhole tubular string installed within a wellbore extending through the Earth:
the first contacting member is electrically connected to the body and extends radially away from the body such that the first contacting member contacts an inner surface of the downhole tubular string to electrically connect the downhole tubular string to the body; and
the second contacting member is electrically insulated from the body and extends radially away from the body such that the second contacting member contacts the inner surface of the downhole tubular string to centralize at least a portion of the body within the downhole tubular string.